class CShowEngine : public CBase, public MHttpClientObserver, public MMetaDataReaderObserver
{
@@ -37,7 +37,7 @@
public:
IMPORT_C void AddDownloadL(CShowInfo& info);
- IMPORT_C TBool RemoveDownloadL(TUint aUid);
+ IMPORT_C void RemoveDownloadL(TUint aUid);
IMPORT_C void RemoveAllDownloadsL();
IMPORT_C void SuspendDownloads();
@@ -56,11 +56,11 @@
IMPORT_C void GetShowsDownloadingL(RShowInfoArray &aArray);
IMPORT_C CShowInfo* DBGetShowByFileNameL(TFileName aFileName);
- IMPORT_C TBool AddShowL(const CShowInfo& item);
+ IMPORT_C void AddShowL(const CShowInfo& item);
IMPORT_C void DeletePlayedShowsL(RShowInfoArray &aShowInfoArray);
IMPORT_C void DeleteAllShowsByFeedL(TUint aFeedUid,TBool aDeleteFiles=ETrue);
IMPORT_C void DeleteShowL(TUint aShowUid, TBool aRemoveFile=ETrue);
- IMPORT_C void DeleteOldShowsByFeed(TUint aFeedUid);
+ IMPORT_C void DeleteOldShowsByFeedL(TUint aFeedUid);
IMPORT_C void AddObserver(MShowEngineObserver *observer);
IMPORT_C void RemoveObserver(MShowEngineObserver *observer);
@@ -70,6 +70,7 @@
IMPORT_C void GetMimeType(const TDesC& aFileName, TDes& aMimeType);
+ IMPORT_C void CheckForDeletedShows(TUint aFeedUid);
IMPORT_C CMetaDataReader& MetaDataReader();
private:
@@ -88,7 +89,7 @@
CShowEngine(CPodcastModel& aPodcastModel);
void ConstructL();
- TBool GetShowL(CShowInfo *info);
+ void GetShowL(CShowInfo *info);
void NotifyDownloadQueueUpdatedL();
void NotifyShowDownloadUpdatedL(TInt aBytesOfCurrentDownload, TInt aBytesTotal);
@@ -106,20 +107,20 @@
// DB methods
CShowInfo* DBGetShowByUidL(TUint aUid);
void DBFillShowInfoFromStmtL(sqlite3_stmt *st, CShowInfo* showInfo);
- TBool DBAddShowL(const CShowInfo& aItem);
- TBool DBUpdateShowL(CShowInfo& aItem);
+ void DBAddShowL(const CShowInfo& aItem);
+ void DBUpdateShowL(CShowInfo& aItem);
void DBGetShowsByFeedL(RShowInfoArray& aShowArray, TUint aFeedUid);
void DBGetAllShowsL(RShowInfoArray& aShowArray);
void DBGetNewShowsL(RShowInfoArray& aShowArray);
void DBGetDownloadedShowsL(RShowInfoArray& aShowArray);
- TBool DBDeleteAllShowsByFeed(TUint aFeedUid);
- void DBDeleteOldShowsByFeed(TUint aFeedUid);
- TBool DBDeleteShow(TUint aUid);
- void DBRemoveAllDownloads();
- void DBRemoveDownload(TUint aUid);
+ void DBDeleteAllShowsByFeedL(TUint aFeedUid);
+ void DBDeleteOldShowsByFeedL(TUint aFeedUid);
+ void DBDeleteShowL(TUint aUid);
+ void DBRemoveAllDownloadsL();
+ void DBRemoveDownloadL(TUint aUid);
void DBGetAllDownloadsL(RShowInfoArray& aShowArray);
- TUint DBGetDownloadsCount();
- void DBAddDownload(TUint aUid);
+ TUint DBGetDownloadsCountL();
+ void DBAddDownloadL(TUint aUid);
CShowInfo* DBGetNextDownloadL();
private:
diff -r 3c0683f9f72c -r 70749e2f572d engine/inc/ShowInfo.h
--- a/engine/inc/ShowInfo.h Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/inc/ShowInfo.h Thu Apr 29 11:55:32 2010 +0100
@@ -42,7 +42,8 @@
enum TShowType {
EAudioPodcast = 0,
- EVideoPodcast
+ EVideoPodcast,
+ EOtherPodcast
};
class CShowInfo: public CBase {
diff -r 3c0683f9f72c -r 70749e2f572d engine/inc/sqlite3.h
--- a/engine/inc/sqlite3.h Wed Mar 10 10:50:53 2010 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,3858 +0,0 @@
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code. In place of
-** a legal notice, here is a blessing:
-**
-** May you do good and not evil.
-** May you find forgiveness for yourself and forgive others.
-** May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This header file defines the interface that the SQLite library
-** presents to client programs. If a C-function, structure, datatype,
-** or constant definition does not appear in this file, then it is
-** not a published API of SQLite, is subject to change without
-** notice, and should not be referenced by programs that use SQLite.
-**
-** Some of the definitions that are in this file are marked as
-** "experimental". Experimental interfaces are normally new
-** features recently added to SQLite. We do not anticipate changes
-** to experimental interfaces but reserve to make minor changes if
-** experience from use "in the wild" suggest such changes are prudent.
-**
-** The official C-language API documentation for SQLite is derived
-** from comments in this file. This file is the authoritative source
-** on how SQLite interfaces are suppose to operate.
-**
-** The name of this file under configuration management is "sqlite.h.in".
-** The makefile makes some minor changes to this file (such as inserting
-** the version number) and changes its name to "sqlite3.h" as
-** part of the build process.
-**
-** @(#) $Id: sqlite3.h 1420 2009-01-13 15:06:30Z teknolog $
-*/
-#ifndef _SQLITE3_H_
-#define _SQLITE3_H_
-
-/*
-** Make sure we can call this stuff from C++.
-*/
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-//#define EXPORT_C
-
-//#define /*IMPORT_C*/
-
-/*
-** Add the ability to override 'extern'
-*/
-#ifndef SQLITE_EXTERN
-# define SQLITE_EXTERN extern
-#endif
-
-/*
-** Make sure these symbols where not defined by some previous header
-** file.
-*/
-#ifdef SQLITE_VERSION
-# undef SQLITE_VERSION
-#endif
-#ifdef SQLITE_VERSION_NUMBER
-# undef SQLITE_VERSION_NUMBER
-#endif
-
-/*
-** CAPI3REF: Compile-Time Library Version Numbers {F10010}
-**
-** {F10011} The #define in the sqlite3.h header file named
-** SQLITE_VERSION resolves to a string literal that identifies
-** the version of the SQLite library in the format "X.Y.Z", where
-** X is the major version number, Y is the minor version number and Z
-** is the release number. The X.Y.Z might be followed by "alpha" or "beta".
-** {END} For example "3.1.1beta".
-**
-** The X value is always 3 in SQLite. The X value only changes when
-** backwards compatibility is broken and we intend to never break
-** backwards compatibility. The Y value only changes when
-** there are major feature enhancements that are forwards compatible
-** but not backwards compatible. The Z value is incremented with
-** each release but resets back to 0 when Y is incremented.
-**
-** {F10014} The SQLITE_VERSION_NUMBER #define resolves to an integer
-** with the value (X*1000000 + Y*1000 + Z) where X, Y, and Z are as
-** with SQLITE_VERSION. {END} For example, for version "3.1.1beta",
-** SQLITE_VERSION_NUMBER is set to 3001001. To detect if they are using
-** version 3.1.1 or greater at compile time, programs may use the test
-** (SQLITE_VERSION_NUMBER>=3001001).
-**
-** See also: [sqlite3_libversion()] and [sqlite3_libversion_number()].
-*/
-#define SQLITE_VERSION "3.5.4"
-#define SQLITE_VERSION_NUMBER 3005004
-
-/*
-** CAPI3REF: Run-Time Library Version Numbers {F10020}
-**
-** {F10021} The sqlite3_libversion_number() interface returns an integer
-** equal to [SQLITE_VERSION_NUMBER]. {END} The value returned
-** by this routine should only be different from the header values
-** if the application is compiled using an sqlite3.h header from a
-** different version of SQLite than library. Cautious programmers might
-** include a check in their application to verify that
-** sqlite3_libversion_number() always returns the value
-** [SQLITE_VERSION_NUMBER].
-**
-** {F10022} The sqlite3_version[] string constant contains the text of the
-** [SQLITE_VERSION] string. {F10023} The sqlite3_libversion() function returns
-** a pointer to the sqlite3_version[] string constant. {END} The
-** sqlite3_libversion() function
-** is provided for DLL users who can only access functions and not
-** constants within the DLL.
-*/
-const char sqlite3_version[] = SQLITE_VERSION;
-/*IMPORT_C*/ const char *sqlite3_libversion(void);
-/*IMPORT_C*/ int sqlite3_libversion_number(void);
-
-
-void LogMessage(char *message);
-
-/*
-** CAPI3REF: Test To See If The Library Is Threadsafe {F10100}
-**
-** {F10101} The sqlite3_threadsafe() routine returns nonzero
-** if SQLite was compiled with its mutexes enabled or zero if
-** SQLite was compiled with mutexes disabled. {END} If this
-** routine returns false, then it is not safe for simultaneously
-** running threads to both invoke SQLite interfaces.
-**
-** Really all this routine does is return true if SQLite was
-** compiled with the -DSQLITE_THREADSAFE=1 option and false if
-** compiled with -DSQLITE_THREADSAFE=0. If SQLite uses an
-** application-defined mutex subsystem, malloc subsystem, collating
-** sequence, VFS, SQL function, progress callback, commit hook,
-** extension, or other accessories and these add-ons are not
-** threadsafe, then clearly the combination will not be threadsafe
-** either. Hence, this routine never reports that the library
-** is guaranteed to be threadsafe, only when it is guaranteed not
-** to be.
-*/
-/*IMPORT_C*/ int sqlite3_threadsafe(void);
-
-/*
-** CAPI3REF: Database Connection Handle {F12000}
-**
-** Each open SQLite database is represented by pointer to an instance of the
-** opaque structure named "sqlite3". It is useful to think of an sqlite3
-** pointer as an object. The [sqlite3_open()], [sqlite3_open16()], and
-** [sqlite3_open_v2()] interfaces are its constructors
-** and [sqlite3_close()] is its destructor. There are many other interfaces
-** (such as [sqlite3_prepare_v2()], [sqlite3_create_function()], and
-** [sqlite3_busy_timeout()] to name but three) that are methods on this
-** object.
-*/
-typedef struct sqlite3 sqlite3;
-
-
-/*
-** CAPI3REF: 64-Bit Integer Types {F10200}
-**
-** Because there is no cross-platform way to specify such types
-** SQLite includes typedefs for 64-bit signed and unsigned integers.
-** {F10201} The sqlite_int64 and sqlite3_int64 types specify a
-** 64-bit signed integer. {F10202} The sqlite_uint64 and
-** sqlite3_uint64 types specify a 64-bit unsigned integer. {END}
-**
-** The sqlite3_int64 and sqlite3_uint64 are the preferred type
-** definitions. The sqlite_int64 and sqlite_uint64 types are
-** supported for backwards compatibility only.
-*/
-#ifdef SQLITE_INT64_TYPE
- typedef SQLITE_INT64_TYPE sqlite_int64;
- typedef unsigned SQLITE_INT64_TYPE sqlite_uint64;
-#elif defined(_MSC_VER) || defined(__BORLANDC__)
- typedef __int64 sqlite_int64;
- typedef unsigned __int64 sqlite_uint64;
-#else
- typedef long long int sqlite_int64;
- typedef unsigned long long int sqlite_uint64;
-#endif
-typedef sqlite_int64 sqlite3_int64;
-typedef sqlite_uint64 sqlite3_uint64;
-
-/*
-** If compiling for a processor that lacks floating point support,
-** substitute integer for floating-point
-*/
-#ifdef SQLITE_OMIT_FLOATING_POINT
-# define double sqlite3_int64
-#endif
-
-/*
-** CAPI3REF: Closing A Database Connection {F12010}
-**
-** {F12011} The sqlite3_close() interfaces destroys an [sqlite3] object
-** allocated by a prior call to [sqlite3_open()], [sqlite3_open16()], or
-** [sqlite3_open_v2()]. {F12012} Sqlite3_close() releases all
-** memory used by the connection and closes all open files. {END}.
-**
-** {F12013} If the database connection contains
-** [sqlite3_stmt | prepared statements] that have not been finalized
-** by [sqlite3_finalize()], then sqlite3_close() returns SQLITE_BUSY
-** and leaves the connection open. {F12014} Giving sqlite3_close()
-** a NULL pointer is a harmless no-op. {END}
-**
-** {U12015} Passing this routine a database connection that has already been
-** closed results in undefined behavior. {U12016} If other interfaces that
-** reference the same database connection are pending (either in the
-** same thread or in different threads) when this routine is called,
-** then the behavior is undefined and is almost certainly undesirable.
-*/
-/*IMPORT_C*/ int sqlite3_close(sqlite3 *);
-
-/*
-** The type for a callback function.
-** This is legacy and deprecated. It is included for historical
-** compatibility and is not documented.
-*/
-typedef int (*sqlite3_callback)(void*,int,char**, char**);
-
-/*
-** CAPI3REF: One-Step Query Execution Interface {F12100}
-**
-** {F12101} The sqlite3_exec() interface evaluates zero or more
-** UTF-8 encoded, semicolon-separated SQL statements in the zero-terminated
-** string of its second argument. {F12102} The SQL
-** statements are evaluated in the context of the database connection
-** specified by in the first argument.
-** {F12103} SQL statements are prepared one by one using
-** [sqlite3_prepare()] or the equivalent, evaluated
-** using one or more calls to [sqlite3_step()], then destroyed
-** using [sqlite3_finalize()]. {F12104} The return value of
-** sqlite3_exec() is SQLITE_OK if all SQL statement run
-** successfully.
-**
-** {F12105} If one or more of the SQL statements handed to
-** sqlite3_exec() are queries, then
-** the callback function specified by the 3rd parameter is
-** invoked once for each row of the query result. {F12106}
-** If the callback returns a non-zero value then the query
-** is aborted, all subsequent SQL statements
-** are skipped and the sqlite3_exec() function returns the [SQLITE_ABORT].
-**
-** {F12107} The 4th parameter to sqlite3_exec() is an arbitrary pointer
-** that is passed through to the callback function as its first parameter.
-**
-** {F12108} The 2nd parameter to the callback function is the number of
-** columns in the query result. {F12109} The 3rd parameter to the callback
-** is an array of pointers to strings holding the values for each column
-** as extracted using [sqlite3_column_text()]. NULL values in the result
-** set result in a NULL pointer. All other value are in their UTF-8
-** string representation. {F12117}
-** The 4th parameter to the callback is an array of strings
-** obtained using [sqlite3_column_name()] and holding
-** the names of each column, also in UTF-8.
-**
-** {F12110} The callback function may be NULL, even for queries. A NULL
-** callback is not an error. It just means that no callback
-** will be invoked.
-**
-** {F12112} If an error occurs while parsing or evaluating the SQL
-** then an appropriate error message is written into memory obtained
-** from [sqlite3_malloc()] and *errmsg is made to point to that message
-** assuming errmsg is not NULL.
-** {U12113} The calling function is responsible for freeing the memory
-** using [sqlite3_free()].
-** {F12116} If [sqlite3_malloc()] fails while attempting to generate
-** the error message, *errmsg is set to NULL.
-** {F12114} If errmsg is NULL then no attempt is made to generate an
-** error message. Is the return code SQLITE_NOMEM or the original
-** error code? What happens if there are multiple errors?
-** Do we get code for the first error, or is the choice of reported
-** error arbitrary?
-**
-** {F12115} The return value is is SQLITE_OK if there are no errors and
-** some other [SQLITE_OK | return code] if there is an error.
-** The particular return value depends on the type of error. {END}
-*/
-/*IMPORT_C*/ int sqlite3_exec(
- sqlite3*, /* An open database */
- const char *sql, /* SQL to be evaluted */
- int (*callback)(void*,int,char**,char**), /* Callback function */
- void *, /* 1st argument to callback */
- char **errmsg /* Error msg written here */
-);
-
-/*
-** CAPI3REF: Result Codes {F10210}
-** KEYWORDS: SQLITE_OK
-**
-** Many SQLite functions return an integer result code from the set shown
-** above in order to indicates success or failure.
-**
-** {F10211} The result codes shown here are the only ones returned
-** by SQLite in its default configuration. {F10212} However, the
-** [sqlite3_extended_result_codes()] API can be used to set a database
-** connectoin to return more detailed result codes. {END}
-**
-** See also: [SQLITE_IOERR_READ | extended result codes]
-**
-*/
-#define SQLITE_OK 0 /* Successful result */
-/* beginning-of-error-codes */
-#define SQLITE_ERROR 1 /* SQL error or missing database */
-#define SQLITE_INTERNAL 2 /* Internal logic error in SQLite */
-#define SQLITE_PERM 3 /* Access permission denied */
-#define SQLITE_ABORT 4 /* Callback routine requested an abort */
-#define SQLITE_BUSY 5 /* The database file is locked */
-#define SQLITE_LOCKED 6 /* A table in the database is locked */
-#define SQLITE_NOMEM 7 /* A malloc() failed */
-#define SQLITE_READONLY 8 /* Attempt to write a readonly database */
-#define SQLITE_INTERRUPT 9 /* Operation terminated by sqlite3_interrupt()*/
-#define SQLITE_IOERR 10 /* Some kind of disk I/O error occurred */
-#define SQLITE_CORRUPT 11 /* The database disk image is malformed */
-#define SQLITE_NOTFOUND 12 /* NOT USED. Table or record not found */
-#define SQLITE_FULL 13 /* Insertion failed because database is full */
-#define SQLITE_CANTOPEN 14 /* Unable to open the database file */
-#define SQLITE_PROTOCOL 15 /* NOT USED. Database lock protocol error */
-#define SQLITE_EMPTY 16 /* Database is empty */
-#define SQLITE_SCHEMA 17 /* The database schema changed */
-#define SQLITE_TOOBIG 18 /* String or BLOB exceeds size limit */
-#define SQLITE_CONSTRAINT 19 /* Abort due to constraint violation */
-#define SQLITE_MISMATCH 20 /* Data type mismatch */
-#define SQLITE_MISUSE 21 /* Library used incorrectly */
-#define SQLITE_NOLFS 22 /* Uses OS features not supported on host */
-#define SQLITE_AUTH 23 /* Authorization denied */
-#define SQLITE_FORMAT 24 /* Auxiliary database format error */
-#define SQLITE_RANGE 25 /* 2nd parameter to sqlite3_bind out of range */
-#define SQLITE_NOTADB 26 /* File opened that is not a database file */
-#define SQLITE_ROW 100 /* sqlite3_step() has another row ready */
-#define SQLITE_DONE 101 /* sqlite3_step() has finished executing */
-/* end-of-error-codes */
-
-/*
-** CAPI3REF: Extended Result Codes {F10220}
-**
-** In its default configuration, SQLite API routines return one of 26 integer
-** [SQLITE_OK | result codes]. However, experience has shown that
-** many of these result codes are too course-grained. They do not provide as
-** much information about problems as programmers might like. In an effort to
-** address this, newer versions of SQLite (version 3.3.8 and later) include
-** support for additional result codes that provide more detailed information
-** about errors. {F10221} The extended result codes are enabled or disabled
-** for each database connection using the [sqlite3_extended_result_codes()]
-** API. {END}
-**
-** Some of the available extended result codes are listed above.
-** We expect the number of extended result codes will be expand
-** over time. {U10422} Software that uses extended result codes should expect
-** to see new result codes in future releases of SQLite. {END}
-**
-** {F10223} The symbolic name for an extended result code always contains
-** a related primary result code as a prefix. {F10224} Primary result
-** codes contain a single "_" character. {F10225} Extended result codes
-** contain two or more "_" characters. {F10226} The numeric value of an
-** extended result code can be converted to its
-** corresponding primary result code by masking off the lower 8 bytes. {END}
-**
-** The SQLITE_OK result code will never be extended. It will always
-** be exactly zero.
-*/
-#define SQLITE_IOERR_READ (SQLITE_IOERR | (1<<8))
-#define SQLITE_IOERR_SHORT_READ (SQLITE_IOERR | (2<<8))
-#define SQLITE_IOERR_WRITE (SQLITE_IOERR | (3<<8))
-#define SQLITE_IOERR_FSYNC (SQLITE_IOERR | (4<<8))
-#define SQLITE_IOERR_DIR_FSYNC (SQLITE_IOERR | (5<<8))
-#define SQLITE_IOERR_TRUNCATE (SQLITE_IOERR | (6<<8))
-#define SQLITE_IOERR_FSTAT (SQLITE_IOERR | (7<<8))
-#define SQLITE_IOERR_UNLOCK (SQLITE_IOERR | (8<<8))
-#define SQLITE_IOERR_RDLOCK (SQLITE_IOERR | (9<<8))
-#define SQLITE_IOERR_DELETE (SQLITE_IOERR | (10<<8))
-#define SQLITE_IOERR_BLOCKED (SQLITE_IOERR | (11<<8))
-#define SQLITE_IOERR_NOMEM (SQLITE_IOERR | (12<<8))
-
-/*
-** CAPI3REF: Flags For File Open Operations {F10230}
-**
-** {F10231} Some combination of the these bit values are used as the
-** third argument to the [sqlite3_open_v2()] interface and
-** as fourth argument to the xOpen method of the
-** [sqlite3_vfs] object.
-*/
-#define SQLITE_OPEN_READONLY 0x00000001
-#define SQLITE_OPEN_READWRITE 0x00000002
-#define SQLITE_OPEN_CREATE 0x00000004
-#define SQLITE_OPEN_DELETEONCLOSE 0x00000008
-#define SQLITE_OPEN_EXCLUSIVE 0x00000010
-#define SQLITE_OPEN_MAIN_DB 0x00000100
-#define SQLITE_OPEN_TEMP_DB 0x00000200
-#define SQLITE_OPEN_TRANSIENT_DB 0x00000400
-#define SQLITE_OPEN_MAIN_JOURNAL 0x00000800
-#define SQLITE_OPEN_TEMP_JOURNAL 0x00001000
-#define SQLITE_OPEN_SUBJOURNAL 0x00002000
-#define SQLITE_OPEN_MASTER_JOURNAL 0x00004000
-
-/*
-** CAPI3REF: Device Characteristics {F10240}
-**
-** {F10241} The xDeviceCapabilities method of the [sqlite3_io_methods]
-** object returns an integer which is a vector of the these
-** bit values expressing I/O characteristics of the mass storage
-** device that holds the file that the [sqlite3_io_methods]
-** refers to. {END}
-**
-** {F10242} The SQLITE_IOCAP_ATOMIC property means that all writes of
-** any size are atomic. {F10243} The SQLITE_IOCAP_ATOMICnnn values
-** mean that writes of blocks that are nnn bytes in size and
-** are aligned to an address which is an integer multiple of
-** nnn are atomic. {F10244} The SQLITE_IOCAP_SAFE_APPEND value means
-** that when data is appended to a file, the data is appended
-** first then the size of the file is extended, never the other
-** way around. {F10245} The SQLITE_IOCAP_SEQUENTIAL property means that
-** information is written to disk in the same order as calls
-** to xWrite().
-*/
-#define SQLITE_IOCAP_ATOMIC 0x00000001
-#define SQLITE_IOCAP_ATOMIC512 0x00000002
-#define SQLITE_IOCAP_ATOMIC1K 0x00000004
-#define SQLITE_IOCAP_ATOMIC2K 0x00000008
-#define SQLITE_IOCAP_ATOMIC4K 0x00000010
-#define SQLITE_IOCAP_ATOMIC8K 0x00000020
-#define SQLITE_IOCAP_ATOMIC16K 0x00000040
-#define SQLITE_IOCAP_ATOMIC32K 0x00000080
-#define SQLITE_IOCAP_ATOMIC64K 0x00000100
-#define SQLITE_IOCAP_SAFE_APPEND 0x00000200
-#define SQLITE_IOCAP_SEQUENTIAL 0x00000400
-
-/*
-** CAPI3REF: File Locking Levels {F10250}
-**
-** {F10251} SQLite uses one of the following integer values as the second
-** argument to calls it makes to the xLock() and xUnlock() methods
-** of an [sqlite3_io_methods] object. {END}
-*/
-#define SQLITE_LOCK_NONE 0
-#define SQLITE_LOCK_SHARED 1
-#define SQLITE_LOCK_RESERVED 2
-#define SQLITE_LOCK_PENDING 3
-#define SQLITE_LOCK_EXCLUSIVE 4
-
-/*
-** CAPI3REF: Synchronization Type Flags {F10260}
-**
-** {F10261} When SQLite invokes the xSync() method of an
-** [sqlite3_io_methods] object it uses a combination of the
-** these integer values as the second argument.
-**
-** {F10262} When the SQLITE_SYNC_DATAONLY flag is used, it means that the
-** sync operation only needs to flush data to mass storage. Inode
-** information need not be flushed. {F10263} The SQLITE_SYNC_NORMAL means
-** to use normal fsync() semantics. {F10264} The SQLITE_SYNC_FULL flag means
-** to use Mac OS-X style fullsync instead of fsync().
-*/
-#define SQLITE_SYNC_NORMAL 0x00002
-#define SQLITE_SYNC_FULL 0x00003
-#define SQLITE_SYNC_DATAONLY 0x00010
-
-
-/*
-** CAPI3REF: OS Interface Open File Handle {F11110}
-**
-** An [sqlite3_file] object represents an open file in the OS
-** interface layer. Individual OS interface implementations will
-** want to subclass this object by appending additional fields
-** for their own use. The pMethods entry is a pointer to an
-** [sqlite3_io_methods] object that defines methods for performing
-** I/O operations on the open file.
-*/
-typedef struct sqlite3_file sqlite3_file;
-struct sqlite3_file {
- int isOpen;
- //const struct sqlite3_io_methods *pMethods; /* Methods for an open file */
-};
-
-/*
-** CAPI3REF: OS Interface File Virtual Methods Object {F11120}
-**
-** Every file opened by the [sqlite3_vfs] xOpen method contains a pointer to
-** an instance of the this object. This object defines the
-** methods used to perform various operations against the open file.
-**
-** The flags argument to xSync may be one of [SQLITE_SYNC_NORMAL] or
-** [SQLITE_SYNC_FULL]. The first choice is the normal fsync().
-* The second choice is an
-** OS-X style fullsync. The SQLITE_SYNC_DATA flag may be ORed in to
-** indicate that only the data of the file and not its inode needs to be
-** synced.
-**
-** The integer values to xLock() and xUnlock() are one of
-**
-** - [SQLITE_LOCK_NONE],
-**
- [SQLITE_LOCK_SHARED],
-**
- [SQLITE_LOCK_RESERVED],
-**
- [SQLITE_LOCK_PENDING], or
-**
- [SQLITE_LOCK_EXCLUSIVE].
-**
-** xLock() increases the lock. xUnlock() decreases the lock.
-** The xCheckReservedLock() method looks
-** to see if any database connection, either in this
-** process or in some other process, is holding an RESERVED,
-** PENDING, or EXCLUSIVE lock on the file. It returns true
-** if such a lock exists and false if not.
-**
-** The xFileControl() method is a generic interface that allows custom
-** VFS implementations to directly control an open file using the
-** [sqlite3_file_control()] interface. The second "op" argument
-** is an integer opcode. The third
-** argument is a generic pointer which is intended to be a pointer
-** to a structure that may contain arguments or space in which to
-** write return values. Potential uses for xFileControl() might be
-** functions to enable blocking locks with timeouts, to change the
-** locking strategy (for example to use dot-file locks), to inquire
-** about the status of a lock, or to break stale locks. The SQLite
-** core reserves opcodes less than 100 for its own use.
-** A [SQLITE_FCNTL_LOCKSTATE | list of opcodes] less than 100 is available.
-** Applications that define a custom xFileControl method should use opcodes
-** greater than 100 to avoid conflicts.
-**
-** The xSectorSize() method returns the sector size of the
-** device that underlies the file. The sector size is the
-** minimum write that can be performed without disturbing
-** other bytes in the file. The xDeviceCharacteristics()
-** method returns a bit vector describing behaviors of the
-** underlying device:
-**
-**
-** - [SQLITE_IOCAP_ATOMIC]
-**
- [SQLITE_IOCAP_ATOMIC512]
-**
- [SQLITE_IOCAP_ATOMIC1K]
-**
- [SQLITE_IOCAP_ATOMIC2K]
-**
- [SQLITE_IOCAP_ATOMIC4K]
-**
- [SQLITE_IOCAP_ATOMIC8K]
-**
- [SQLITE_IOCAP_ATOMIC16K]
-**
- [SQLITE_IOCAP_ATOMIC32K]
-**
- [SQLITE_IOCAP_ATOMIC64K]
-**
- [SQLITE_IOCAP_SAFE_APPEND]
-**
- [SQLITE_IOCAP_SEQUENTIAL]
-**
-**
-** The SQLITE_IOCAP_ATOMIC property means that all writes of
-** any size are atomic. The SQLITE_IOCAP_ATOMICnnn values
-** mean that writes of blocks that are nnn bytes in size and
-** are aligned to an address which is an integer multiple of
-** nnn are atomic. The SQLITE_IOCAP_SAFE_APPEND value means
-** that when data is appended to a file, the data is appended
-** first then the size of the file is extended, never the other
-** way around. The SQLITE_IOCAP_SEQUENTIAL property means that
-** information is written to disk in the same order as calls
-** to xWrite().
-*/
-/*typedef struct sqlite3_io_methods sqlite3_io_methods;
-struct sqlite3_io_methods {
- int iVersion;
- int (*xClose)(sqlite3_file*);
- int (*xRead)(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst);
- int (*xWrite)(sqlite3_file*, const void*, int iAmt, sqlite3_int64 iOfst);
- int (*xTruncate)(sqlite3_file*, sqlite3_int64 size);
- int (*xSync)(sqlite3_file*, int flags);
- int (*xFileSize)(sqlite3_file*, sqlite3_int64 *pSize);
- int (*xLock)(sqlite3_file*, int);
- int (*xUnlock)(sqlite3_file*, int);
- int (*xCheckReservedLock)(sqlite3_file*);
- int (*xFileControl)(sqlite3_file*, int op, void *pArg);
- int (*xSectorSize)(sqlite3_file*);
- int (*xDeviceCharacteristics)(sqlite3_file*);
-};*/
-
-/*
-** CAPI3REF: Standard File Control Opcodes {F11310}
-**
-** These integer constants are opcodes for the xFileControl method
-** of the [sqlite3_io_methods] object and to the [sqlite3_file_control()]
-** interface.
-**
-** {F11311} The [SQLITE_FCNTL_LOCKSTATE] opcode is used for debugging. This
-** opcode cases the xFileControl method to write the current state of
-** the lock (one of [SQLITE_LOCK_NONE], [SQLITE_LOCK_SHARED],
-** [SQLITE_LOCK_RESERVED], [SQLITE_LOCK_PENDING], or [SQLITE_LOCK_EXCLUSIVE])
-** into an integer that the pArg argument points to. {F11312} This capability
-** is used during testing and only needs to be supported when SQLITE_TEST
-** is defined.
-*/
-#define SQLITE_FCNTL_LOCKSTATE 1
-
-/*
-** CAPI3REF: Mutex Handle {F17110}
-**
-** The mutex module within SQLite defines [sqlite3_mutex] to be an
-** abstract type for a mutex object. {F17111} The SQLite core never looks
-** at the internal representation of an [sqlite3_mutex]. {END} It only
-** deals with pointers to the [sqlite3_mutex] object.
-**
-** Mutexes are created using [sqlite3_mutex_alloc()].
-*/
-typedef struct sqlite3_mutex sqlite3_mutex;
-
-/*
-** CAPI3REF: OS Interface Object {F11140}
-**
-** An instance of this object defines the interface between the
-** SQLite core and the underlying operating system. The "vfs"
-** in the name of the object stands for "virtual file system".
-**
-** The iVersion field is initially 1 but may be larger for future
-** versions of SQLite. Additional fields may be appended to this
-** object when the iVersion value is increased.
-**
-** The szOsFile field is the size of the subclassed [sqlite3_file]
-** structure used by this VFS. mxPathname is the maximum length of
-** a pathname in this VFS.
-**
-** Registered vfs modules are kept on a linked list formed by
-** the pNext pointer. The [sqlite3_vfs_register()]
-** and [sqlite3_vfs_unregister()] interfaces manage this list
-** in a thread-safe way. The [sqlite3_vfs_find()] interface
-** searches the list.
-**
-** The pNext field is the only fields in the sqlite3_vfs
-** structure that SQLite will ever modify. SQLite will only access
-** or modify this field while holding a particular static mutex.
-** The application should never modify anything within the sqlite3_vfs
-** object once the object has been registered.
-**
-** The zName field holds the name of the VFS module. The name must
-** be unique across all VFS modules.
-**
-** {F11141} SQLite will guarantee that the zFilename string passed to
-** xOpen() is a full pathname as generated by xFullPathname() and
-** that the string will be valid and unchanged until xClose() is
-** called. {END} So the [sqlite3_file] can store a pointer to the
-** filename if it needs to remember the filename for some reason.
-**
-** {F11142} The flags argument to xOpen() includes all bits set in
-** the flags argument to [sqlite3_open_v2()]. Or if [sqlite3_open()]
-** or [sqlite3_open16()] is used, then flags includes at least
-** [SQLITE_OPEN_READWRITE] | [SQLITE_OPEN_CREATE]. {END}
-** If xOpen() opens a file read-only then it sets *pOutFlags to
-** include [SQLITE_OPEN_READONLY]. Other bits in *pOutFlags may be
-** set.
-**
-** {F11143} SQLite will also add one of the following flags to the xOpen()
-** call, depending on the object being opened:
-**
-**
-** - [SQLITE_OPEN_MAIN_DB]
-**
- [SQLITE_OPEN_MAIN_JOURNAL]
-**
- [SQLITE_OPEN_TEMP_DB]
-**
- [SQLITE_OPEN_TEMP_JOURNAL]
-**
- [SQLITE_OPEN_TRANSIENT_DB]
-**
- [SQLITE_OPEN_SUBJOURNAL]
-**
- [SQLITE_OPEN_MASTER_JOURNAL]
-**
{END}
-**
-** The file I/O implementation can use the object type flags to
-** changes the way it deals with files. For example, an application
-** that does not care about crash recovery or rollback, might make
-** the open of a journal file a no-op. Writes to this journal are
-** also a no-op. Any attempt to read the journal return SQLITE_IOERR.
-** Or the implementation might recognize the a database file will
-** be doing page-aligned sector reads and writes in a random order
-** and set up its I/O subsystem accordingly.
-**
-** {F11144} SQLite might also add one of the following flags to the xOpen
-** method:
-**
-**
-** - [SQLITE_OPEN_DELETEONCLOSE]
-**
- [SQLITE_OPEN_EXCLUSIVE]
-**
-**
-** {F11145} The [SQLITE_OPEN_DELETEONCLOSE] flag means the file should be
-** deleted when it is closed. {F11146} The [SQLITE_OPEN_DELETEONCLOSE]
-** will be set for TEMP databases, journals and for subjournals.
-** {F11147} The [SQLITE_OPEN_EXCLUSIVE] flag means the file should be opened
-** for exclusive access. This flag is set for all files except
-** for the main database file. {END}
-**
-** {F11148} At least szOsFile bytes of memory is allocated by SQLite
-** to hold the [sqlite3_file] structure passed as the third
-** argument to xOpen. {END} The xOpen method does not have to
-** allocate the structure; it should just fill it in.
-**
-** {F11149} The flags argument to xAccess() may be [SQLITE_ACCESS_EXISTS]
-** to test for the existance of a file,
-** or [SQLITE_ACCESS_READWRITE] to test to see
-** if a file is readable and writable, or [SQLITE_ACCESS_READ]
-** to test to see if a file is at least readable. {END} The file can be a
-** directory.
-**
-** {F11150} SQLite will always allocate at least mxPathname+1 byte for
-** the output buffers for xGetTempname and xFullPathname. {F11151} The exact
-** size of the output buffer is also passed as a parameter to both
-** methods. {END} If the output buffer is not large enough, SQLITE_CANTOPEN
-** should be returned. As this is handled as a fatal error by SQLite,
-** vfs implementations should endeavor to prevent this by setting
-** mxPathname to a sufficiently large value.
-**
-** The xRandomness(), xSleep(), and xCurrentTime() interfaces
-** are not strictly a part of the filesystem, but they are
-** included in the VFS structure for completeness.
-** The xRandomness() function attempts to return nBytes bytes
-** of good-quality randomness into zOut. The return value is
-** the actual number of bytes of randomness obtained. The
-** xSleep() method cause the calling thread to sleep for at
-** least the number of microseconds given. The xCurrentTime()
-** method returns a Julian Day Number for the current date and
-** time.
-*/
-typedef struct sqlite3_vfs sqlite3_vfs;
-struct sqlite3_vfs {
- int iVersion; /* Structure version number */
- int szOsFile; /* Size of subclassed sqlite3_file */
- int mxPathname; /* Maximum file pathname length */
- sqlite3_vfs *pNext; /* Next registered VFS */
- const char *zName; /* Name of this virtual file system */
- void *pAppData; /* Pointer to application-specific data */
-/* int (*xOpen)(sqlite3_vfs*, const char *zName, sqlite3_file*,
- int flags, int *pOutFlags);
- int (*xDelete)(sqlite3_vfs*, const char *zName, int syncDir);
- int (*xAccess)(sqlite3_vfs*, const char *zName, int flags);
- int (*xGetTempname)(sqlite3_vfs*, int nOut, char *zOut);
- int (*xFullPathname)(sqlite3_vfs*, const char *zName, int nOut, char *zOut);
- void *(*xDlOpen)(sqlite3_vfs*, const char *zFilename);
- void (*xDlError)(sqlite3_vfs*, int nByte, char *zErrMsg);
- void *(*xDlSym)(sqlite3_vfs*,void*, const char *zSymbol);
- void (*xDlClose)(sqlite3_vfs*, void*);
- int (*xRandomness)(sqlite3_vfs*, int nByte, char *zOut);
- int (*xSleep)(sqlite3_vfs*, int microseconds);
- int (*xCurrentTime)(sqlite3_vfs*, double*);*/
- /* New fields may be appended in figure versions. The iVersion
- ** value will increment whenever this happens. */
-};
-
-/*
-** CAPI3REF: Flags for the xAccess VFS method {F11190}
-**
-** {F11191} These integer constants can be used as the third parameter to
-** the xAccess method of an [sqlite3_vfs] object. {END} They determine
-** the kind of what kind of permissions the xAccess method is
-** looking for. {F11192} With SQLITE_ACCESS_EXISTS, the xAccess method
-** simply checks to see if the file exists. {F11193} With
-** SQLITE_ACCESS_READWRITE, the xAccess method checks to see
-** if the file is both readable and writable. {F11194} With
-** SQLITE_ACCESS_READ the xAccess method
-** checks to see if the file is readable.
-*/
-#define SQLITE_ACCESS_EXISTS 0
-#define SQLITE_ACCESS_READWRITE 1
-#define SQLITE_ACCESS_READ 2
-
-/*
-** CAPI3REF: Enable Or Disable Extended Result Codes {F12200}
-**
-** {F12201} The sqlite3_extended_result_codes() routine enables or disables the
-** [SQLITE_IOERR_READ | extended result codes] feature on a database
-** connection if its 2nd parameter is
-** non-zero or zero, respectively. {F12202}
-** By default, SQLite API routines return one of only 26 integer
-** [SQLITE_OK | result codes]. {F12203} When extended result codes
-** are enabled by this routine, the repetoire of result codes can be
-** much larger and can (hopefully) provide more detailed information
-** about the cause of an error.
-**
-** {F12204} The second argument is a boolean value that turns extended result
-** codes on and off. {F12205} Extended result codes are off by default for
-** backwards compatibility with older versions of SQLite.
-*/
-/*IMPORT_C*/ int sqlite3_extended_result_codes(sqlite3*, int onoff);
-
-/*
-** CAPI3REF: Last Insert Rowid {F12220}
-**
-** {F12221} Each entry in an SQLite table has a unique 64-bit signed
-** integer key called the "rowid". {F12222} The rowid is always available
-** as an undeclared column named ROWID, OID, or _ROWID_ as long as those
-** names are not also used by explicitly declared columns. {F12223} If
-** the table has a column of type INTEGER PRIMARY KEY then that column
-** is another an alias for the rowid.
-**
-** {F12224} This routine returns the rowid of the most recent
-** successful INSERT into the database from the database connection
-** shown in the first argument. {F12225} If no successful inserts
-** have ever occurred on this database connection, zero is returned.
-**
-** {F12226} If an INSERT occurs within a trigger, then the rowid of the
-** inserted row is returned by this routine as long as the trigger
-** is running. {F12227} But once the trigger terminates, the value returned
-** by this routine reverts to the last value inserted before the
-** trigger fired.
-**
-** {F12228} An INSERT that fails due to a constraint violation is not a
-** successful insert and does not change the value returned by this
-** routine. {F12229} Thus INSERT OR FAIL, INSERT OR IGNORE, INSERT OR ROLLBACK,
-** and INSERT OR ABORT make no changes to the return value of this
-** routine when their insertion fails. {F12231} When INSERT OR REPLACE
-** encounters a constraint violation, it does not fail. The
-** INSERT continues to completion after deleting rows that caused
-** the constraint problem so INSERT OR REPLACE will always change
-** the return value of this interface.
-**
-** {UF12232} If another thread does a new insert on the same database connection
-** while this routine is running and thus changes the last insert rowid,
-** then the return value of this routine is undefined.
-*/
-/*IMPORT_C*/ sqlite3_int64 sqlite3_last_insert_rowid(sqlite3*);
-
-/*
-** CAPI3REF: Count The Number Of Rows Modified {F12240}
-**
-** {F12241} This function returns the number of database rows that were changed
-** or inserted or deleted by the most recently completed SQL statement
-** on the connection specified by the first parameter. {F12242} Only
-** changes that are directly specified by the INSERT, UPDATE, or
-** DELETE statement are counted. Auxiliary changes caused by
-** triggers are not counted. {F12243} Use the [sqlite3_total_changes()] function
-** to find the total number of changes including changes caused by triggers.
-**
-** {F12244} Within the body of a trigger, the sqlite3_changes() interface
-** can be called to find the number of
-** changes in the most recently completed INSERT, UPDATE, or DELETE
-** statement within the body of the same trigger.
-**
-** {F12245} All changes are counted, even if they are later undone by a
-** ROLLBACK or ABORT. {F12246} Except, changes associated with creating and
-** dropping tables are not counted.
-**
-** {F12247} If a callback invokes [sqlite3_exec()] or [sqlite3_step()]
-** recursively, then the changes in the inner, recursive call are
-** counted together with the changes in the outer call.
-**
-** {F12248} SQLite implements the command "DELETE FROM table" without
-** a WHERE clause by dropping and recreating the table. (This is much
-** faster than going through and deleting individual elements from the
-** table.) Because of this optimization, the change count for
-** "DELETE FROM table" will be zero regardless of the number of elements
-** that were originally in the table. {F12251} To get an accurate count
-** of the number of rows deleted, use
-** "DELETE FROM table WHERE 1" instead.
-**
-** {UF12252} If another thread makes changes on the same database connection
-** while this routine is running then the return value of this routine
-** is undefined.
-*/
-/*IMPORT_C*/ int sqlite3_changes(sqlite3*);
-
-/*
-** CAPI3REF: Total Number Of Rows Modified {F12260}
-***
-** {F12261} This function returns the number of database rows that have been
-** modified by INSERT, UPDATE or DELETE statements since the database handle
-** was opened. {F12262} The count includes UPDATE, INSERT and DELETE
-** statements executed as part of trigger programs. {F12263} All changes
-** are counted as soon as the statement that makes them is completed
-** (when the statement handle is passed to [sqlite3_reset()] or
-** [sqlite3_finalize()]). {END}
-**
-** See also the [sqlite3_change()] interface.
-**
-** {F12265} SQLite implements the command "DELETE FROM table" without
-** a WHERE clause by dropping and recreating the table. (This is much
-** faster than going
-** through and deleting individual elements form the table.) Because of
-** this optimization, the change count for "DELETE FROM table" will be
-** zero regardless of the number of elements that were originally in the
-** table. To get an accurate count of the number of rows deleted, use
-** "DELETE FROM table WHERE 1" instead.
-**
-** {U12264} If another thread makes changes on the same database connection
-** while this routine is running then the return value of this routine
-** is undefined. {END}
-*/
-/*IMPORT_C*/ int sqlite3_total_changes(sqlite3*);
-
-/*
-** CAPI3REF: Interrupt A Long-Running Query {F12270}
-**
-** {F12271} This function causes any pending database operation to abort and
-** return at its earliest opportunity. {END} This routine is typically
-** called in response to a user action such as pressing "Cancel"
-** or Ctrl-C where the user wants a long query operation to halt
-** immediately.
-**
-** {F12272} It is safe to call this routine from a thread different from the
-** thread that is currently running the database operation. {U12273} But it
-** is not safe to call this routine with a database connection that
-** is closed or might close before sqlite3_interrupt() returns.
-**
-** If an SQL is very nearly finished at the time when sqlite3_interrupt()
-** is called, then it might not have an opportunity to be interrupted.
-** It might continue to completion.
-** {F12274} The SQL operation that is interrupted will return
-** [SQLITE_INTERRUPT]. {F12275} If the interrupted SQL operation is an
-** INSERT, UPDATE, or DELETE that is inside an explicit transaction,
-** then the entire transaction will be rolled back automatically.
-** {F12276} A call to sqlite3_interrupt() has no effect on SQL statements
-** that are started after sqlite3_interrupt() returns.
-*/
-/*IMPORT_C*/ void sqlite3_interrupt(sqlite3*);
-
-/*
-** CAPI3REF: Determine If An SQL Statement Is Complete {F10510}
-**
-** These routines are useful for command-line input to determine if the
-** currently entered text seems to form complete a SQL statement or
-** if additional input is needed before sending the text into
-** SQLite for parsing. These routines return true if the input string
-** appears to be a complete SQL statement. A statement is judged to be
-** complete if it ends with a semicolon and is not a fragment of a
-** CREATE TRIGGER statement. These routines do not parse the SQL and
-** so will not detect syntactically incorrect SQL.
-**
-** {F10511} These functions return true if the given input string
-** ends with a semicolon optionally followed by whitespace or
-** comments. {F10512} For sqlite3_complete(),
-** the parameter must be a zero-terminated UTF-8 string. {F10513} For
-** sqlite3_complete16(), a zero-terminated machine byte order UTF-16 string
-** is required. {F10514} These routines return false if the terminal
-** semicolon is within a comment, a string literal or a quoted identifier
-** (in other words if the final semicolon is not really a separate token
-** but part of a larger token) or if the final semicolon is
-** in between the BEGIN and END keywords of a CREATE TRIGGER statement.
-** {END}
-*/
-/*IMPORT_C*/ int sqlite3_complete(const char *sql);
-/*IMPORT_C*/ int sqlite3_complete16(const void *sql);
-
-/*
-** CAPI3REF: Register A Callback To Handle SQLITE_BUSY Errors {F12310}
-**
-** {F12311} This routine identifies a callback function that might be
-** invoked whenever an attempt is made to open a database table
-** that another thread or process has locked.
-** {F12312} If the busy callback is NULL, then [SQLITE_BUSY]
-** or [SQLITE_IOERR_BLOCKED]
-** is returned immediately upon encountering the lock.
-** {F12313} If the busy callback is not NULL, then the
-** callback will be invoked with two arguments. {F12314} The
-** first argument to the handler is a copy of the void* pointer which
-** is the third argument to this routine. {F12315} The second argument to
-** the handler is the number of times that the busy handler has
-** been invoked for this locking event. {F12316} If the
-** busy callback returns 0, then no additional attempts are made to
-** access the database and [SQLITE_BUSY] or [SQLITE_IOERR_BLOCKED] is returned.
-** {F12317} If the callback returns non-zero, then another attempt
-** is made to open the database for reading and the cycle repeats.
-**
-** The presence of a busy handler does not guarantee that
-** it will be invoked when there is lock contention. {F12319}
-** If SQLite determines that invoking the busy handler could result in
-** a deadlock, it will go ahead and return [SQLITE_BUSY] or
-** [SQLITE_IOERR_BLOCKED] instead of invoking the
-** busy handler. {END}
-** Consider a scenario where one process is holding a read lock that
-** it is trying to promote to a reserved lock and
-** a second process is holding a reserved lock that it is trying
-** to promote to an exclusive lock. The first process cannot proceed
-** because it is blocked by the second and the second process cannot
-** proceed because it is blocked by the first. If both processes
-** invoke the busy handlers, neither will make any progress. Therefore,
-** SQLite returns [SQLITE_BUSY] for the first process, hoping that this
-** will induce the first process to release its read lock and allow
-** the second process to proceed.
-**
-** {F12321} The default busy callback is NULL. {END}
-**
-** {F12322} The [SQLITE_BUSY] error is converted to [SQLITE_IOERR_BLOCKED]
-** when SQLite is in the middle of a large transaction where all the
-** changes will not fit into the in-memory cache. {F12323} SQLite will
-** already hold a RESERVED lock on the database file, but it needs
-** to promote this lock to EXCLUSIVE so that it can spill cache
-** pages into the database file without harm to concurrent
-** readers. {F12324} If it is unable to promote the lock, then the in-memory
-** cache will be left in an inconsistent state and so the error
-** code is promoted from the relatively benign [SQLITE_BUSY] to
-** the more severe [SQLITE_IOERR_BLOCKED]. {F12325} This error code promotion
-** forces an automatic rollback of the changes. {END} See the
-**
-** CorruptionFollowingBusyError wiki page for a discussion of why
-** this is important.
-**
-** {F12326} Sqlite is re-entrant, so the busy handler may start a new
-** query. {END} (It is not clear why anyone would every want to do this,
-** but it is allowed, in theory.) {U12327} But the busy handler may not
-** close the database. Closing the database from a busy handler will delete
-** data structures out from under the executing query and will
-** probably result in a segmentation fault or other runtime error. {END}
-**
-** {F12328} There can only be a single busy handler defined for each database
-** connection. Setting a new busy handler clears any previous one.
-** {F12329} Note that calling [sqlite3_busy_timeout()] will also set or clear
-** the busy handler.
-**
-** {F12331} When operating in [sqlite3_enable_shared_cache | shared cache mode],
-** only a single busy handler can be defined for each database file.
-** So if two database connections share a single cache, then changing
-** the busy handler on one connection will also change the busy
-** handler in the other connection. {F12332} The busy handler is invoked
-** in the thread that was running when the lock contention occurs.
-*/
-/*IMPORT_C*/ int sqlite3_busy_handler(sqlite3*, int(*)(void*,int), void*);
-
-/*
-** CAPI3REF: Set A Busy Timeout {F12340}
-**
-** {F12341} This routine sets a [sqlite3_busy_handler | busy handler]
-** that sleeps for a while when a
-** table is locked. {F12342} The handler will sleep multiple times until
-** at least "ms" milliseconds of sleeping have been done. {F12343} After
-** "ms" milliseconds of sleeping, the handler returns 0 which
-** causes [sqlite3_step()] to return [SQLITE_BUSY] or [SQLITE_IOERR_BLOCKED].
-**
-** {F12344} Calling this routine with an argument less than or equal to zero
-** turns off all busy handlers.
-**
-** {F12345} There can only be a single busy handler for a particular database
-** connection. If another busy handler was defined
-** (using [sqlite3_busy_handler()]) prior to calling
-** this routine, that other busy handler is cleared.
-*/
-/*IMPORT_C*/ int sqlite3_busy_timeout(sqlite3*, int ms);
-
-/*
-** CAPI3REF: Convenience Routines For Running Queries {F12370}
-**
-** This next routine is a convenience wrapper around [sqlite3_exec()].
-** {F12371} Instead of invoking a user-supplied callback for each row of the
-** result, this routine remembers each row of the result in memory
-** obtained from [sqlite3_malloc()], then returns all of the result after the
-** query has finished. {F12372}
-**
-** As an example, suppose the query result where this table:
-**
-**
-** Name | Age
-** -----------------------
-** Alice | 43
-** Bob | 28
-** Cindy | 21
-**
-**
-** If the 3rd argument were &azResult then after the function returns
-** azResult will contain the following data:
-**
-**
-** azResult[0] = "Name";
-** azResult[1] = "Age";
-** azResult[2] = "Alice";
-** azResult[3] = "43";
-** azResult[4] = "Bob";
-** azResult[5] = "28";
-** azResult[6] = "Cindy";
-** azResult[7] = "21";
-**
-**
-** Notice that there is an extra row of data containing the column
-** headers. But the *nrow return value is still 3. *ncolumn is
-** set to 2. In general, the number of values inserted into azResult
-** will be ((*nrow) + 1)*(*ncolumn).
-**
-** {U12374} After the calling function has finished using the result, it should
-** pass the result data pointer to sqlite3_free_table() in order to
-** release the memory that was malloc-ed. Because of the way the
-** [sqlite3_malloc()] happens, the calling function must not try to call
-** [sqlite3_free()] directly. Only [sqlite3_free_table()] is able to release
-** the memory properly and safely. {END}
-**
-** {F12373} The return value of this routine is the same as
-** from [sqlite3_exec()].
-*/
-/*IMPORT_C*/ int sqlite3_get_table(
- sqlite3*, /* An open database */
- const char *sql, /* SQL to be executed */
- char ***resultp, /* Result written to a char *[] that this points to */
- int *nrow, /* Number of result rows written here */
- int *ncolumn, /* Number of result columns written here */
- char **errmsg /* Error msg written here */
-);
-/*IMPORT_C*/ void sqlite3_free_table(char **result);
-
-/*
-** CAPI3REF: Formatted String Printing Functions {F17400}
-**
-** These routines are workalikes of the "printf()" family of functions
-** from the standard C library.
-**
-** {F17401} The sqlite3_mprintf() and sqlite3_vmprintf() routines write their
-** results into memory obtained from [sqlite3_malloc()].
-** {U17402} The strings returned by these two routines should be
-** released by [sqlite3_free()]. {F17403} Both routines return a
-** NULL pointer if [sqlite3_malloc()] is unable to allocate enough
-** memory to hold the resulting string.
-**
-** {F17404} In sqlite3_snprintf() routine is similar to "snprintf()" from
-** the standard C library. The result is written into the
-** buffer supplied as the second parameter whose size is given by
-** the first parameter. {END} Note that the order of the
-** first two parameters is reversed from snprintf(). This is an
-** historical accident that cannot be fixed without breaking
-** backwards compatibility. {F17405} Note also that sqlite3_snprintf()
-** returns a pointer to its buffer instead of the number of
-** characters actually written into the buffer. {END} We admit that
-** the number of characters written would be a more useful return
-** value but we cannot change the implementation of sqlite3_snprintf()
-** now without breaking compatibility.
-**
-** {F17406} As long as the buffer size is greater than zero, sqlite3_snprintf()
-** guarantees that the buffer is always zero-terminated. {F17407} The first
-** parameter "n" is the total size of the buffer, including space for
-** the zero terminator. {END} So the longest string that can be completely
-** written will be n-1 characters.
-**
-** These routines all implement some additional formatting
-** options that are useful for constructing SQL statements.
-** All of the usual printf formatting options apply. In addition, there
-** is are "%q", "%Q", and "%z" options.
-**
-** {F17410} The %q option works like %s in that it substitutes a null-terminated
-** string from the argument list. But %q also doubles every '\'' character.
-** %q is designed for use inside a string literal. {END} By doubling each '\''
-** character it escapes that character and allows it to be inserted into
-** the string.
-**
-** For example, so some string variable contains text as follows:
-**
-**
-** char *zText = "It's a happy day!";
-**
-**
-** One can use this text in an SQL statement as follows:
-**
-**
-** char *zSQL = sqlite3_mprintf("INSERT INTO table VALUES('%q')", zText);
-** sqlite3_exec(db, zSQL, 0, 0, 0);
-** sqlite3_free(zSQL);
-**
-**
-** Because the %q format string is used, the '\'' character in zText
-** is escaped and the SQL generated is as follows:
-**
-**
-** INSERT INTO table1 VALUES('It''s a happy day!')
-**
-**
-** This is correct. Had we used %s instead of %q, the generated SQL
-** would have looked like this:
-**
-**
-** INSERT INTO table1 VALUES('It's a happy day!');
-**
-**
-** This second example is an SQL syntax error. As a general rule you
-** should always use %q instead of %s when inserting text into a string
-** literal.
-**
-** {F17411} The %Q option works like %q except it also adds single quotes around
-** the outside of the total string. Or if the parameter in the argument
-** list is a NULL pointer, %Q substitutes the text "NULL" (without single
-** quotes) in place of the %Q option. {END} So, for example, one could say:
-**
-**
-** char *zSQL = sqlite3_mprintf("INSERT INTO table VALUES(%Q)", zText);
-** sqlite3_exec(db, zSQL, 0, 0, 0);
-** sqlite3_free(zSQL);
-**
-**
-** The code above will render a correct SQL statement in the zSQL
-** variable even if the zText variable is a NULL pointer.
-**
-** {F17412} The "%z" formatting option works exactly like "%s" with the
-** addition that after the string has been read and copied into
-** the result, [sqlite3_free()] is called on the input string. {END}
-*/
-/*IMPORT_C*/ char *sqlite3_mprintf(const char*,...);
-/*IMPORT_C*/ char *sqlite3_snprintf(int,char*,const char*, ...);
-
-/*
-** CAPI3REF: Memory Allocation Subsystem {F17300}
-**
-** {F17301} The SQLite core uses these three routines for all of its own
-** internal memory allocation needs. {END} "Core" in the previous sentence
-** does not include operating-system specific VFS implementation. The
-** windows VFS uses native malloc and free for some operations.
-**
-** {F17302} The sqlite3_malloc() routine returns a pointer to a block
-** of memory at least N bytes in length, where N is the parameter.
-** {F17303} If sqlite3_malloc() is unable to obtain sufficient free
-** memory, it returns a NULL pointer. {F17304} If the parameter N to
-** sqlite3_malloc() is zero or negative then sqlite3_malloc() returns
-** a NULL pointer.
-**
-** {F17305} Calling sqlite3_free() with a pointer previously returned
-** by sqlite3_malloc() or sqlite3_realloc() releases that memory so
-** that it might be reused. {F17306} The sqlite3_free() routine is
-** a no-op if is called with a NULL pointer. Passing a NULL pointer
-** to sqlite3_free() is harmless. {U17307} After being freed, memory
-** should neither be read nor written. Even reading previously freed
-** memory might result in a segmentation fault or other severe error.
-** {U17309} Memory corruption, a segmentation fault, or other severe error
-** might result if sqlite3_free() is called with a non-NULL pointer that
-** was not obtained from sqlite3_malloc() or sqlite3_free().
-**
-** {F17310} The sqlite3_realloc() interface attempts to resize a
-** prior memory allocation to be at least N bytes, where N is the
-** second parameter. The memory allocation to be resized is the first
-** parameter. {F17311} If the first parameter to sqlite3_realloc()
-** is a NULL pointer then its behavior is identical to calling
-** sqlite3_malloc(N) where N is the second parameter to sqlite3_realloc().
-** {F17312} If the second parameter to sqlite3_realloc() is zero or
-** negative then the behavior is exactly the same as calling
-** sqlite3_free(P) where P is the first parameter to sqlite3_realloc().
-** {F17313} Sqlite3_realloc() returns a pointer to a memory allocation
-** of at least N bytes in size or NULL if sufficient memory is unavailable.
-** {F17314} If M is the size of the prior allocation, then min(N,M) bytes
-** of the prior allocation are copied into the beginning of buffer returned
-** by sqlite3_realloc() and the prior allocation is freed.
-** {F17315} If sqlite3_realloc() returns NULL, then the prior allocation
-** is not freed.
-**
-** {F17316} The memory returned by sqlite3_malloc() and sqlite3_realloc()
-** is always aligned to at least an 8 byte boundary. {END}
-**
-** {F17381} The default implementation
-** of the memory allocation subsystem uses the malloc(), realloc()
-** and free() provided by the standard C library. {F17382} However, if
-** SQLite is compiled with the following C preprocessor macro
-**
-** SQLITE_MEMORY_SIZE=NNN
-**
-** where NNN is an integer, then SQLite create a static
-** array of at least NNN bytes in size and use that array
-** for all of its dynamic memory allocation needs. {END} Additional
-** memory allocator options may be added in future releases.
-**
-** In SQLite version 3.5.0 and 3.5.1, it was possible to define
-** the SQLITE_OMIT_MEMORY_ALLOCATION which would cause the built-in
-** implementation of these routines to be omitted. That capability
-** is no longer provided. Only built-in memory allocators can be
-** used.
-**
-** The windows OS interface layer calls
-** the system malloc() and free() directly when converting
-** filenames between the UTF-8 encoding used by SQLite
-** and whatever filename encoding is used by the particular windows
-** installation. Memory allocation errors are detected, but
-** they are reported back as [SQLITE_CANTOPEN] or
-** [SQLITE_IOERR] rather than [SQLITE_NOMEM].
-*/
-/*IMPORT_C*/ void *sqlite3_malloc(int);
-/*IMPORT_C*/ void *sqlite3_realloc(void*, int);
-/*IMPORT_C*/ void sqlite3_free(void*);
-
-/*
-** CAPI3REF: Memory Allocator Statistics {F17370}
-**
-** In addition to the basic three allocation routines
-** [sqlite3_malloc()], [sqlite3_free()], and [sqlite3_realloc()],
-** the memory allocation subsystem included with the SQLite
-** sources provides the interfaces shown here.
-**
-** {F17371} The sqlite3_memory_used() routine returns the
-** number of bytes of memory currently outstanding (malloced but not freed).
-** {F17372} The value returned by sqlite3_memory_used() includes
-** any overhead added by SQLite, but not overhead added by the
-** library malloc() that backs the sqlite3_malloc() implementation.
-** {F17373} The sqlite3_memory_highwater() routines returns the
-** maximum number of bytes that have been outstanding at any time
-** since the highwater mark was last reset.
-** {F17374} The byte count returned by sqlite3_memory_highwater()
-** uses the same byte counting rules as sqlite3_memory_used(). {END}
-** In other words, overhead added internally by SQLite is counted,
-** but overhead from the underlying system malloc is not.
-** {F17375} If the parameter to sqlite3_memory_highwater() is true,
-** then the highwater mark is reset to the current value of
-** sqlite3_memory_used() and the prior highwater mark (before the
-** reset) is returned. {F17376} If the parameter to
-** sqlite3_memory_highwater() is zero, then the highwater mark is
-** unchanged.
-*/
-/*IMPORT_C*/ sqlite3_int64 sqlite3_memory_used(void);
-/*IMPORT_C*/ sqlite3_int64 sqlite3_memory_highwater(int resetFlag);
-
-/*
-** CAPI3REF: Compile-Time Authorization Callbacks {F12500}
-**
-** {F12501} This routine registers a authorizer callback with a particular
-** database connection, supplied in the first argument. {F12502}
-** The authorizer callback is invoked as SQL statements are being compiled
-** by [sqlite3_prepare()] or its variants [sqlite3_prepare_v2()],
-** [sqlite3_prepare16()] and [sqlite3_prepare16_v2()]. {F12503} At various
-** points during the compilation process, as logic is being created
-** to perform various actions, the authorizer callback is invoked to
-** see if those actions are allowed. The authorizer callback should
-** return SQLITE_OK to allow the action, [SQLITE_IGNORE] to disallow the
-** specific action but allow the SQL statement to continue to be
-** compiled, or [SQLITE_DENY] to cause the entire SQL statement to be
-** rejected with an error. {F12504} If the authorizer callback returns
-** any value other than [SQLITE_IGNORE], [SQLITE_OK], or [SQLITE_DENY]
-** then [sqlite3_prepare_v2()] or equivalent call that triggered
-** the authorizer shall
-** fail with an SQLITE_ERROR error code and an appropriate error message. {END}
-**
-** When the callback returns [SQLITE_OK], that means the operation
-** requested is ok. {F12505} When the callback returns [SQLITE_DENY], the
-** [sqlite3_prepare_v2()] or equivalent call that triggered the
-** authorizer shall fail
-** with an SQLITE_ERROR error code and an error message explaining that
-** access is denied. {F12506} If the authorizer code (the 2nd parameter
-** to the authorizer callback is anything other than [SQLITE_READ], then
-** a return of [SQLITE_IGNORE] has the same effect as [SQLITE_DENY].
-** If the authorizer code is [SQLITE_READ] and the callback returns
-** [SQLITE_IGNORE] then the prepared statement is constructed to
-** insert a NULL value in place of the table column that would have
-** been read if [SQLITE_OK] had been returned. {END}
-**
-** {F12510} The first parameter to the authorizer callback is a copy of
-** the third parameter to the sqlite3_set_authorizer() interface.
-** {F12511} The second parameter to the callback is an integer
-** [SQLITE_COPY | action code] that specifies the particular action
-** to be authorized. {END} The available action codes are
-** [SQLITE_COPY | documented separately]. {F12512} The third through sixth
-** parameters to the callback are zero-terminated strings that contain
-** additional details about the action to be authorized. {END}
-**
-** An authorizer is used when preparing SQL statements from an untrusted
-** source, to ensure that the SQL statements do not try to access data
-** that they are not allowed to see, or that they do not try to
-** execute malicious statements that damage the database. For
-** example, an application may allow a user to enter arbitrary
-** SQL queries for evaluation by a database. But the application does
-** not want the user to be able to make arbitrary changes to the
-** database. An authorizer could then be put in place while the
-** user-entered SQL is being prepared that disallows everything
-** except SELECT statements.
-**
-** {F12520} Only a single authorizer can be in place on a database connection
-** at a time. Each call to sqlite3_set_authorizer overrides the
-** previous call. {F12521} A NULL authorizer means that no authorization
-** callback is invoked. {F12522} The default authorizer is NULL. {END}
-**
-** Note that the authorizer callback is invoked only during
-** [sqlite3_prepare()] or its variants. {F12523} Authorization is not
-** performed during statement evaluation in [sqlite3_step()]. {END}
-*/
-/*IMPORT_C*/ int sqlite3_set_authorizer(
- sqlite3*,
- int (*xAuth)(void*,int,const char*,const char*,const char*,const char*),
- void *pUserData
-);
-
-/*
-** CAPI3REF: Authorizer Return Codes {F12590}
-**
-** The [sqlite3_set_authorizer | authorizer callback function] must
-** return either [SQLITE_OK] or one of these two constants in order
-** to signal SQLite whether or not the action is permitted. See the
-** [sqlite3_set_authorizer | authorizer documentation] for additional
-** information.
-*/
-#define SQLITE_DENY 1 /* Abort the SQL statement with an error */
-#define SQLITE_IGNORE 2 /* Don't allow access, but don't generate an error */
-
-/*
-** CAPI3REF: Authorizer Action Codes {F12550}
-**
-** The [sqlite3_set_authorizer()] interface registers a callback function
-** that is invoked to authorizer certain SQL statement actions. {F12551} The
-** second parameter to the callback is an integer code that specifies
-** what action is being authorized. These are the integer action codes that
-** the authorizer callback may be passed. {END}
-**
-** These action code values signify what kind of operation is to be
-** authorized. {F12552} The 3rd and 4th parameters to the authorization
-** callback function will be parameters or NULL depending on which of these
-** codes is used as the second parameter. {F12553} The 5th parameter to the
-** authorizer callback is the name of the database ("main", "temp",
-** etc.) if applicable. {F12554} The 6th parameter to the authorizer callback
-** is the name of the inner-most trigger or view that is responsible for
-** the access attempt or NULL if this access attempt is directly from
-** top-level SQL code.
-*/
-/******************************************* 3rd ************ 4th ***********/
-#define SQLITE_CREATE_INDEX 1 /* Index Name Table Name */
-#define SQLITE_CREATE_TABLE 2 /* Table Name NULL */
-#define SQLITE_CREATE_TEMP_INDEX 3 /* Index Name Table Name */
-#define SQLITE_CREATE_TEMP_TABLE 4 /* Table Name NULL */
-#define SQLITE_CREATE_TEMP_TRIGGER 5 /* Trigger Name Table Name */
-#define SQLITE_CREATE_TEMP_VIEW 6 /* View Name NULL */
-#define SQLITE_CREATE_TRIGGER 7 /* Trigger Name Table Name */
-#define SQLITE_CREATE_VIEW 8 /* View Name NULL */
-#define SQLITE_DELETE 9 /* Table Name NULL */
-#define SQLITE_DROP_INDEX 10 /* Index Name Table Name */
-#define SQLITE_DROP_TABLE 11 /* Table Name NULL */
-#define SQLITE_DROP_TEMP_INDEX 12 /* Index Name Table Name */
-#define SQLITE_DROP_TEMP_TABLE 13 /* Table Name NULL */
-#define SQLITE_DROP_TEMP_TRIGGER 14 /* Trigger Name Table Name */
-#define SQLITE_DROP_TEMP_VIEW 15 /* View Name NULL */
-#define SQLITE_DROP_TRIGGER 16 /* Trigger Name Table Name */
-#define SQLITE_DROP_VIEW 17 /* View Name NULL */
-#define SQLITE_INSERT 18 /* Table Name NULL */
-#define SQLITE_PRAGMA 19 /* Pragma Name 1st arg or NULL */
-#define SQLITE_READ 20 /* Table Name Column Name */
-#define SQLITE_SELECT 21 /* NULL NULL */
-#define SQLITE_TRANSACTION 22 /* NULL NULL */
-#define SQLITE_UPDATE 23 /* Table Name Column Name */
-#define SQLITE_ATTACH 24 /* Filename NULL */
-#define SQLITE_DETACH 25 /* Database Name NULL */
-#define SQLITE_ALTER_TABLE 26 /* Database Name Table Name */
-#define SQLITE_REINDEX 27 /* Index Name NULL */
-#define SQLITE_ANALYZE 28 /* Table Name NULL */
-#define SQLITE_CREATE_VTABLE 29 /* Table Name Module Name */
-#define SQLITE_DROP_VTABLE 30 /* Table Name Module Name */
-#define SQLITE_FUNCTION 31 /* Function Name NULL */
-#define SQLITE_COPY 0 /* No longer used */
-
-/*
-** CAPI3REF: Tracing And Profiling Functions {F12280}
-**
-** These routines register callback functions that can be used for
-** tracing and profiling the execution of SQL statements.
-**
-** {F12281} The callback function registered by sqlite3_trace() is invoked
-** at the first [sqlite3_step()] for the evaluation of an SQL statement.
-** {F12282} Only a single trace callback can be registered at a time.
-** Each call to sqlite3_trace() overrides the previous. {F12283} A
-** NULL callback for sqlite3_trace() disables tracing. {F12284} The
-** first argument to the trace callback is a copy of the pointer which
-** was the 3rd argument to sqlite3_trace. {F12285} The second argument
-** to the trace callback is a zero-terminated UTF8 string containing
-** the original text of the SQL statement as it was passed into
-** [sqlite3_prepare_v2()] or the equivalent. {END} Note that the
-** host parameter are not expanded in the SQL statement text.
-**
-** {F12287} The callback function registered by sqlite3_profile() is invoked
-** as each SQL statement finishes. {F12288} The first parameter to the
-** profile callback is a copy of the 3rd parameter to sqlite3_profile().
-** {F12289} The second parameter to the profile callback is a
-** zero-terminated UTF-8 string that contains the complete text of
-** the SQL statement as it was processed by [sqlite3_prepare_v2()] or
-** the equivalent. {F12290} The third parameter to the profile
-** callback is an estimate of the number of nanoseconds of
-** wall-clock time required to run the SQL statement from start
-** to finish. {END}
-**
-** The sqlite3_profile() API is currently considered experimental and
-** is subject to change.
-*/
-/*IMPORT_C*/ void *sqlite3_trace(sqlite3*, void(*xTrace)(void*,const char*), void*);
-/*IMPORT_C*/ void *sqlite3_profile(sqlite3*,
- void(*xProfile)(void*,const char*,sqlite3_uint64), void*);
-
-/*
-** CAPI3REF: Query Progress Callbacks {F12910}
-**
-** {F12911} This routine configures a callback function - the
-** progress callback - that is invoked periodically during long
-** running calls to [sqlite3_exec()], [sqlite3_step()] and
-** [sqlite3_get_table()]. {END} An example use for this
-** interface is to keep a GUI updated during a large query.
-**
-** {F12912} The progress callback is invoked once for every N virtual
-** machine opcodes, where N is the second argument to this function.
-** {F12913} The progress callback itself is identified by the third
-** argument to this function. {F12914} The fourth argument to this
-** function is a void pointer passed to the progress callback
-** function each time it is invoked. {END}
-**
-** {F12915} If a call to [sqlite3_exec()], [sqlite3_step()], or
-** [sqlite3_get_table()] results in fewer than N opcodes being executed,
-** then the progress callback is never invoked. {END}
-**
-** {F12916} Only a single progress callback function may be registered for each
-** open database connection. Every call to sqlite3_progress_handler()
-** overwrites the results of the previous call. {F12917}
-** To remove the progress callback altogether, pass NULL as the third
-** argument to this function. {END}
-**
-** {F12918} If the progress callback returns a result other than 0, then
-** the current query is immediately terminated and any database changes
-** rolled back. {F12919}
-** The containing [sqlite3_exec()], [sqlite3_step()], or
-** [sqlite3_get_table()] call returns SQLITE_INTERRUPT. {END} This feature
-** can be used, for example, to implement the "Cancel" button on a
-** progress dialog box in a GUI.
-*/
-/*IMPORT_C*/ void sqlite3_progress_handler(sqlite3*, int, int(*)(void*), void*);
-
-/*
-** CAPI3REF: Opening A New Database Connection {F12700}
-**
-** {F12701} These routines open an SQLite database file whose name
-** is given by the filename argument.
-** {F12702} The filename argument is interpreted as UTF-8
-** for [sqlite3_open()] and [sqlite3_open_v2()] and as UTF-16
-** in the native byte order for [sqlite3_open16()].
-** {F12703} An [sqlite3*] handle is returned in *ppDb, even
-** if an error occurs. {F12723} (Exception: if SQLite is unable
-** to allocate memory to hold the [sqlite3] object, a NULL will
-** be written into *ppDb instead of a pointer to the [sqlite3] object.)
-** {F12704} If the database is opened (and/or created)
-** successfully, then [SQLITE_OK] is returned. {F12705} Otherwise an
-** error code is returned. {F12706} The
-** [sqlite3_errmsg()] or [sqlite3_errmsg16()] routines can be used to obtain
-** an English language description of the error.
-**
-** {F12707} The default encoding for the database will be UTF-8 if
-** [sqlite3_open()] or [sqlite3_open_v2()] is called and
-** UTF-16 in the native byte order if [sqlite3_open16()] is used.
-**
-** {F12708} Whether or not an error occurs when it is opened, resources
-** associated with the [sqlite3*] handle should be released by passing it
-** to [sqlite3_close()] when it is no longer required.
-**
-** {F12709} The [sqlite3_open_v2()] interface works like [sqlite3_open()]
-** except that it acccepts two additional parameters for additional control
-** over the new database connection. {F12710} The flags parameter can be
-** one of:
-**
-**
-** - [SQLITE_OPEN_READONLY]
-**
- [SQLITE_OPEN_READWRITE]
-**
- [SQLITE_OPEN_READWRITE] | [SQLITE_OPEN_CREATE]
-**
-**
-** {F12711} The first value opens the database read-only.
-** {F12712} If the database does not previously exist, an error is returned.
-** {F12713} The second option opens
-** the database for reading and writing if possible, or reading only if
-** if the file is write protected. {F12714} In either case the database
-** must already exist or an error is returned. {F12715} The third option
-** opens the database for reading and writing and creates it if it does
-** not already exist. {F12716}
-** The third options is behavior that is always used for [sqlite3_open()]
-** and [sqlite3_open16()].
-**
-** {F12717} If the filename is ":memory:", then an private
-** in-memory database is created for the connection. {F12718} This in-memory
-** database will vanish when the database connection is closed. {END} Future
-** version of SQLite might make use of additional special filenames
-** that begin with the ":" character. It is recommended that
-** when a database filename really does begin with
-** ":" that you prefix the filename with a pathname like "./" to
-** avoid ambiguity.
-**
-** {F12719} If the filename is an empty string, then a private temporary
-** on-disk database will be created. {F12720} This private database will be
-** automatically deleted as soon as the database connection is closed.
-**
-** {F12721} The fourth parameter to sqlite3_open_v2() is the name of the
-** [sqlite3_vfs] object that defines the operating system
-** interface that the new database connection should use. {F12722} If the
-** fourth parameter is a NULL pointer then the default [sqlite3_vfs]
-** object is used. {END}
-**
-** Note to windows users: The encoding used for the filename argument
-** of [sqlite3_open()] and [sqlite3_open_v2()] must be UTF-8, not whatever
-** codepage is currently defined. Filenames containing international
-** characters must be converted to UTF-8 prior to passing them into
-** [sqlite3_open()] or [sqlite3_open_v2()].
-*/
-/*IMPORT_C*/ int sqlite3_open(
- const char *filename, /* Database filename (UTF-8) */
- sqlite3 **ppDb /* OUT: SQLite db handle */
-);
-/*IMPORT_C*/ int sqlite3_open16(
- const void *filename, /* Database filename (UTF-16) */
- sqlite3 **ppDb /* OUT: SQLite db handle */
-);
-/*IMPORT_C*/ int sqlite3_open_v2(
- const char *filename, /* Database filename (UTF-8) */
- sqlite3 **ppDb, /* OUT: SQLite db handle */
- int flags, /* Flags */
- const char *zVfs /* Name of VFS module to use */
-);
-
-/*
-** CAPI3REF: Error Codes And Messages {F12800}
-**
-** {F12801} The sqlite3_errcode() interface returns the numeric
-** [SQLITE_OK | result code] or [SQLITE_IOERR_READ | extended result code]
-** for the most recent failed sqlite3_* API call associated
-** with [sqlite3] handle 'db'. {U12802} If a prior API call failed but the
-** most recent API call succeeded, the return value from sqlite3_errcode()
-** is undefined. {END}
-**
-** {F12803} The sqlite3_errmsg() and sqlite3_errmsg16() return English-language
-** text that describes the error, as either UTF8 or UTF16 respectively.
-** {F12804} Memory to hold the error message string is managed internally.
-** {U12805} The
-** string may be overwritten or deallocated by subsequent calls to SQLite
-** interface functions. {END}
-**
-** {F12806} Calls to many sqlite3_* functions set the error code and
-** string returned by [sqlite3_errcode()], [sqlite3_errmsg()], and
-** [sqlite3_errmsg16()] overwriting the previous values. {F12807}
-** Except, calls to [sqlite3_errcode()],
-** [sqlite3_errmsg()], and [sqlite3_errmsg16()] themselves do not affect the
-** results of future invocations. {F12808} Calls to API routines that
-** do not return an error code (example: [sqlite3_data_count()]) do not
-** change the error code returned by this routine. {F12809} Interfaces that
-** are not associated with a specific database connection (examples:
-** [sqlite3_mprintf()] or [sqlite3_enable_shared_cache()] do not change
-** the return code. {END}
-**
-** {F12810} Assuming no other intervening sqlite3_* API calls are made,
-** the error code returned by this function is associated with the same
-** error as the strings returned by [sqlite3_errmsg()] and [sqlite3_errmsg16()].
-*/
-/*IMPORT_C*/ int sqlite3_errcode(sqlite3 *db);
-/*IMPORT_C*/ const char *sqlite3_errmsg(sqlite3*);
-/*IMPORT_C*/ const void *sqlite3_errmsg16(sqlite3*);
-
-/*
-** CAPI3REF: SQL Statement Object {F13000}
-**
-** An instance of this object represent single SQL statements. This
-** object is variously known as a "prepared statement" or a
-** "compiled SQL statement" or simply as a "statement".
-**
-** The life of a statement object goes something like this:
-**
-**
-** - Create the object using [sqlite3_prepare_v2()] or a related
-** function.
-**
- Bind values to host parameters using
-** [sqlite3_bind_blob | sqlite3_bind_* interfaces].
-**
- Run the SQL by calling [sqlite3_step()] one or more times.
-**
- Reset the statement using [sqlite3_reset()] then go back
-** to step 2. Do this zero or more times.
-**
- Destroy the object using [sqlite3_finalize()].
-**
-**
-** Refer to documentation on individual methods above for additional
-** information.
-*/
-typedef struct sqlite3_stmt sqlite3_stmt;
-
-/*
-** CAPI3REF: Compiling An SQL Statement {F13010}
-**
-** To execute an SQL query, it must first be compiled into a byte-code
-** program using one of these routines.
-**
-** {F13011} The first argument "db" is an [sqlite3 | SQLite database handle]
-** obtained from a prior call to [sqlite3_open()], [sqlite3_open_v2()]
-** or [sqlite3_open16()]. {F13012}
-** The second argument "zSql" is the statement to be compiled, encoded
-** as either UTF-8 or UTF-16. The sqlite3_prepare() and sqlite3_prepare_v2()
-** interfaces uses UTF-8 and sqlite3_prepare16() and sqlite3_prepare16_v2()
-** use UTF-16. {END}
-**
-** {F13013} If the nByte argument is less
-** than zero, then zSql is read up to the first zero terminator.
-** {F13014} If nByte is non-negative, then it is the maximum number of
-** bytes read from zSql. When nByte is non-negative, the
-** zSql string ends at either the first '\000' or '\u0000' character or
-** until the nByte-th byte, whichever comes first. {END}
-**
-** {F13015} *pzTail is made to point to the first byte past the end of the
-** first SQL statement in zSql. These routines only compiles the first
-** statement in zSql, so *pzTail is left pointing to what remains
-** uncompiled. {END}
-**
-** {F13016} *ppStmt is left pointing to a compiled
-** [sqlite3_stmt | SQL statement structure] that can be
-** executed using [sqlite3_step()]. Or if there is an error, *ppStmt may be
-** set to NULL. {F13017} If the input text contains no SQL (if the input
-** is and empty string or a comment) then *ppStmt is set to NULL.
-** {U13018} The calling procedure is responsible for deleting the
-** compiled SQL statement
-** using [sqlite3_finalize()] after it has finished with it.
-**
-** {F13019} On success, [SQLITE_OK] is returned. Otherwise an
-** [SQLITE_ERROR | error code] is returned. {END}
-**
-** The sqlite3_prepare_v2() and sqlite3_prepare16_v2() interfaces are
-** recommended for all new programs. The two older interfaces are retained
-** for backwards compatibility, but their use is discouraged.
-** {F13020} In the "v2" interfaces, the prepared statement
-** that is returned (the [sqlite3_stmt] object) contains a copy of the
-** original SQL text. {END} This causes the [sqlite3_step()] interface to
-** behave a differently in two ways:
-**
-**
-** - {F13022}
-** If the database schema changes, instead of returning [SQLITE_SCHEMA] as it
-** always used to do, [sqlite3_step()] will automatically recompile the SQL
-** statement and try to run it again. {F12023} If the schema has changed in
-** a way that makes the statement no longer valid, [sqlite3_step()] will still
-** return [SQLITE_SCHEMA]. {END} But unlike the legacy behavior,
-** [SQLITE_SCHEMA] is now a fatal error. {F12024} Calling
-** [sqlite3_prepare_v2()] again will not make the
-** error go away. {F12025} Note: use [sqlite3_errmsg()] to find the text
-** of the parsing error that results in an [SQLITE_SCHEMA] return. {END}
-**
-**
-** -
-** {F13030} When an error occurs,
-** [sqlite3_step()] will return one of the detailed
-** [SQLITE_ERROR | result codes] or
-** [SQLITE_IOERR_READ | extended result codes]. {F13031}
-** The legacy behavior was that [sqlite3_step()] would only return a generic
-** [SQLITE_ERROR] result code and you would have to make a second call to
-** [sqlite3_reset()] in order to find the underlying cause of the problem.
-** {F13032}
-** With the "v2" prepare interfaces, the underlying reason for the error is
-** returned immediately. {END}
-**
-**
-*/
-/*IMPORT_C*/ int sqlite3_prepare(
- sqlite3 *db, /* Database handle */
- const char *zSql, /* SQL statement, UTF-8 encoded */
- int nByte, /* Maximum length of zSql in bytes. */
- sqlite3_stmt **ppStmt, /* OUT: Statement handle */
- const char **pzTail /* OUT: Pointer to unused portion of zSql */
-);
-/*IMPORT_C*/ int sqlite3_prepare_v2(
- sqlite3 *db, /* Database handle */
- const char *zSql, /* SQL statement, UTF-8 encoded */
- int nByte, /* Maximum length of zSql in bytes. */
- sqlite3_stmt **ppStmt, /* OUT: Statement handle */
- const char **pzTail /* OUT: Pointer to unused portion of zSql */
-);
-/*IMPORT_C*/ int sqlite3_prepare16(
- sqlite3 *db, /* Database handle */
- const void *zSql, /* SQL statement, UTF-16 encoded */
- int nByte, /* Maximum length of zSql in bytes. */
- sqlite3_stmt **ppStmt, /* OUT: Statement handle */
- const void **pzTail /* OUT: Pointer to unused portion of zSql */
-);
-/*IMPORT_C*/ int sqlite3_prepare16_v2(
- sqlite3 *db, /* Database handle */
- const void *zSql, /* SQL statement, UTF-16 encoded */
- int nByte, /* Maximum length of zSql in bytes. */
- sqlite3_stmt **ppStmt, /* OUT: Statement handle */
- const void **pzTail /* OUT: Pointer to unused portion of zSql */
-);
-
-/*
-** CAPIREF: Retrieving Statement SQL {F13100}
-**
-** {F13101} If the compiled SQL statement passed as an argument was
-** compiled using either [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()],
-** then this function returns a pointer to a zero-terminated string
-** containing a copy of the original SQL statement. {F13102} The
-** pointer is valid until the statement
-** is deleted using sqlite3_finalize().
-** {F13103} The string returned by sqlite3_sql() is always UTF8 even
-** if a UTF16 string was originally entered using [sqlite3_prepare16_v2()]
-** or the equivalent.
-**
-** {F13104} If the statement was compiled using either of the legacy
-** interfaces [sqlite3_prepare()] or [sqlite3_prepare16()], this
-** function returns NULL.
-*/
-/*IMPORT_C*/ const char *sqlite3_sql(sqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Dynamically Typed Value Object {F15000}
-**
-** {F15001} SQLite uses the sqlite3_value object to represent all values
-** that are or can be stored in a database table. {END}
-** SQLite uses dynamic typing for the values it stores.
-** {F15002} Values stored in sqlite3_value objects can be
-** be integers, floating point values, strings, BLOBs, or NULL.
-*/
-typedef struct Mem sqlite3_value;
-
-/*
-** CAPI3REF: SQL Function Context Object {F16001}
-**
-** The context in which an SQL function executes is stored in an
-** sqlite3_context object. {F16002} A pointer to an sqlite3_context
-** object is always first parameter to application-defined SQL functions.
-*/
-typedef struct sqlite3_context sqlite3_context;
-
-/*
-** CAPI3REF: Binding Values To Prepared Statements {F13500}
-**
-** {F13501} In the SQL strings input to [sqlite3_prepare_v2()] and its
-** variants, literals may be replace by a parameter in one
-** of these forms:
-**
-**
-** - ?
-**
- ?NNN
-**
- :AAA
-**
- @AAA
-**
- $VVV
-**
-**
-** In the parameter forms shown above NNN is an integer literal,
-** AAA is an alphanumeric identifier and VVV is a variable name according
-** to the syntax rules of the TCL programming language. {END}
-** The values of these parameters (also called "host parameter names")
-** can be set using the sqlite3_bind_*() routines defined here.
-**
-** {F13502} The first argument to the sqlite3_bind_*() routines always
-** is a pointer to the [sqlite3_stmt] object returned from
-** [sqlite3_prepare_v2()] or its variants. {F13503} The second
-** argument is the index of the parameter to be set. {F13504} The
-** first parameter has an index of 1. {F13505} When the same named
-** parameter is used more than once, second and subsequent
-** occurrences have the same index as the first occurrence.
-** {F13506} The index for named parameters can be looked up using the
-** [sqlite3_bind_parameter_name()] API if desired. {F13507} The index
-** for "?NNN" parameters is the value of NNN.
-** {F13508} The NNN value must be between 1 and the compile-time
-** parameter SQLITE_MAX_VARIABLE_NUMBER (default value: 999). {END}
-** See limits.html for additional information.
-**
-** {F13509} The third argument is the value to bind to the parameter. {END}
-**
-** {F13510} In those
-** routines that have a fourth argument, its value is the number of bytes
-** in the parameter. To be clear: the value is the number of bytes in the
-** string, not the number of characters. {F13511} The number
-** of bytes does not include the zero-terminator at the end of strings.
-** {F13512}
-** If the fourth parameter is negative, the length of the string is
-** number of bytes up to the first zero terminator. {END}
-**
-** {F13513}
-** The fifth argument to sqlite3_bind_blob(), sqlite3_bind_text(), and
-** sqlite3_bind_text16() is a destructor used to dispose of the BLOB or
-** text after SQLite has finished with it. {F13514} If the fifth argument is
-** the special value [SQLITE_STATIC], then the library assumes that the
-** information is in static, unmanaged space and does not need to be freed.
-** {F13515} If the fifth argument has the value [SQLITE_TRANSIENT], then
-** SQLite makes its own private copy of the data immediately, before
-** the sqlite3_bind_*() routine returns. {END}
-**
-** {F13520} The sqlite3_bind_zeroblob() routine binds a BLOB of length N that
-** is filled with zeros. {F13521} A zeroblob uses a fixed amount of memory
-** (just an integer to hold it size) while it is being processed. {END}
-** Zeroblobs are intended to serve as place-holders for BLOBs whose
-** content is later written using
-** [sqlite3_blob_open | increment BLOB I/O] routines. {F13522} A negative
-** value for the zeroblob results in a zero-length BLOB. {END}
-**
-** {F13530} The sqlite3_bind_*() routines must be called after
-** [sqlite3_prepare_v2()] (and its variants) or [sqlite3_reset()] and
-** before [sqlite3_step()]. {F13531}
-** Bindings are not cleared by the [sqlite3_reset()] routine.
-** {F13532} Unbound parameters are interpreted as NULL. {END}
-**
-** {F13540} These routines return [SQLITE_OK] on success or an error code if
-** anything goes wrong. {F13541} [SQLITE_RANGE] is returned if the parameter
-** index is out of range. {F13542} [SQLITE_NOMEM] is returned if malloc fails.
-** {F13543} [SQLITE_MISUSE] is returned if these routines are called on a
-** virtual machine that is the wrong state or which has already been finalized.
-*/
-/*IMPORT_C*/ int sqlite3_bind_blob(sqlite3_stmt*, int, const void*, int n, void(*)(void*));
-/*IMPORT_C*/ int sqlite3_bind_double(sqlite3_stmt*, int, double);
-/*IMPORT_C*/ int sqlite3_bind_int(sqlite3_stmt*, int, int);
-/*IMPORT_C*/ int sqlite3_bind_int64(sqlite3_stmt*, int, sqlite3_int64);
-/*IMPORT_C*/ int sqlite3_bind_null(sqlite3_stmt*, int);
-/*IMPORT_C*/ int sqlite3_bind_text(sqlite3_stmt*, int, const char*, int n, void(*)(void*));
-/*IMPORT_C*/ int sqlite3_bind_text16(sqlite3_stmt*, int, const void*, int, void(*)(void*));
-/*IMPORT_C*/ int sqlite3_bind_value(sqlite3_stmt*, int, const sqlite3_value*);
-/*IMPORT_C*/ int sqlite3_bind_zeroblob(sqlite3_stmt*, int, int n);
-
-/*
-** CAPI3REF: Number Of Host Parameters {F13600}
-**
-** {F13601} Return the largest host parameter index in the precompiled
-** statement given as the argument. {F13602} When the host parameters
-** are of the forms like ":AAA", "$VVV", "@AAA", or "?",
-** then they are assigned sequential increasing numbers beginning
-** with one, so the value returned is the number of parameters.
-** {F13603} However
-** if the same host parameter name is used multiple times, each occurrance
-** is given the same number, so the value returned in that case is the number
-** of unique host parameter names. {F13604} If host parameters of the
-** form "?NNN" are used (where NNN is an integer) then there might be
-** gaps in the numbering and the value returned by this interface is
-** the index of the host parameter with the largest index value. {END}
-**
-** {U13605} The prepared statement must not be [sqlite3_finalize | finalized]
-** prior to this routine returning. Otherwise the results are undefined
-** and probably undesirable.
-*/
-/*IMPORT_C*/ int sqlite3_bind_parameter_count(sqlite3_stmt*);
-
-/*
-** CAPI3REF: Name Of A Host Parameter {F13620}
-**
-** {F13621} This routine returns a pointer to the name of the n-th
-** parameter in a [sqlite3_stmt | prepared statement]. {F13622}
-** Host parameters of the form ":AAA" or "@AAA" or "$VVV" have a name
-** which is the string ":AAA" or "@AAA" or "$VVV".
-** In other words, the initial ":" or "$" or "@"
-** is included as part of the name. {F13626}
-** Parameters of the form "?" or "?NNN" have no name.
-**
-** {F13623} The first host parameter has an index of 1, not 0.
-**
-** {F13624} If the value n is out of range or if the n-th parameter is
-** nameless, then NULL is returned. {F13625} The returned string is
-** always in the UTF-8 encoding even if the named parameter was
-** originally specified as UTF-16 in [sqlite3_prepare16()] or
-** [sqlite3_prepare16_v2()].
-*/
-/*IMPORT_C*/ const char *sqlite3_bind_parameter_name(sqlite3_stmt*, int);
-
-/*
-** CAPI3REF: Index Of A Parameter With A Given Name {F13640}
-**
-** {F13641} This routine returns the index of a host parameter with the
-** given name. {F13642} The name must match exactly. {F13643}
-** If no parameter with the given name is found, return 0.
-** {F13644} Parameter names must be UTF8.
-*/
-/*IMPORT_C*/ int sqlite3_bind_parameter_index(sqlite3_stmt*, const char *zName);
-
-/*
-** CAPI3REF: Reset All Bindings On A Prepared Statement {F13660}
-**
-** {F13661} Contrary to the intuition of many, [sqlite3_reset()] does not
-** reset the [sqlite3_bind_blob | bindings] on a
-** [sqlite3_stmt | prepared statement]. {F13662} Use this routine to
-** reset all host parameters to NULL.
-*/
-/*IMPORT_C*/ int sqlite3_clear_bindings(sqlite3_stmt*);
-
-/*
-** CAPI3REF: Number Of Columns In A Result Set {F13710}
-**
-** {F13711} Return the number of columns in the result set returned by the
-** [sqlite3_stmt | compiled SQL statement]. {F13712} This routine returns 0
-** if pStmt is an SQL statement that does not return data (for
-** example an UPDATE).
-*/
-/*IMPORT_C*/ int sqlite3_column_count(sqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Column Names In A Result Set {F13720}
-**
-** {F13721} These routines return the name assigned to a particular column
-** in the result set of a SELECT statement. {F13722} The sqlite3_column_name()
-** interface returns a pointer to a zero-terminated UTF8 string
-** and sqlite3_column_name16() returns a pointer to a zero-terminated
-** UTF16 string. {F13723} The first parameter is the
-** [sqlite3_stmt | prepared statement] that implements the SELECT statement.
-** The second parameter is the column number. The left-most column is
-** number 0.
-**
-** {F13724} The returned string pointer is valid until either the
-** [sqlite3_stmt | prepared statement] is destroyed by [sqlite3_finalize()]
-** or until the next call sqlite3_column_name() or sqlite3_column_name16()
-** on the same column.
-**
-** {F13725} If sqlite3_malloc() fails during the processing of either routine
-** (for example during a conversion from UTF-8 to UTF-16) then a
-** NULL pointer is returned.
-*/
-/*IMPORT_C*/ const char *sqlite3_column_name(sqlite3_stmt*, int N);
-/*IMPORT_C*/ const void *sqlite3_column_name16(sqlite3_stmt*, int N);
-
-/*
-** CAPI3REF: Source Of Data In A Query Result {F13740}
-**
-** {F13741} These routines provide a means to determine what column of what
-** table in which database a result of a SELECT statement comes from.
-** {F13742} The name of the database or table or column can be returned as
-** either a UTF8 or UTF16 string. {F13743} The _database_ routines return
-** the database name, the _table_ routines return the table name, and
-** the origin_ routines return the column name. {F13744}
-** The returned string is valid until
-** the [sqlite3_stmt | prepared statement] is destroyed using
-** [sqlite3_finalize()] or until the same information is requested
-** again in a different encoding.
-**
-** {F13745} The names returned are the original un-aliased names of the
-** database, table, and column.
-**
-** {F13746} The first argument to the following calls is a
-** [sqlite3_stmt | compiled SQL statement].
-** {F13747} These functions return information about the Nth column returned by
-** the statement, where N is the second function argument.
-**
-** {F13748} If the Nth column returned by the statement is an expression
-** or subquery and is not a column value, then all of these functions
-** return NULL. {F13749} Otherwise, they return the
-** name of the attached database, table and column that query result
-** column was extracted from.
-**
-** {F13750} As with all other SQLite APIs, those postfixed with "16" return
-** UTF-16 encoded strings, the other functions return UTF-8. {END}
-**
-** These APIs are only available if the library was compiled with the
-** SQLITE_ENABLE_COLUMN_METADATA preprocessor symbol defined.
-**
-** {U13751}
-** If two or more threads call one or more of these routines against the same
-** prepared statement and column at the same time then the results are
-** undefined.
-*/
-/*IMPORT_C*/ const char *sqlite3_column_database_name(sqlite3_stmt*,int);
-/*IMPORT_C*/ const void *sqlite3_column_database_name16(sqlite3_stmt*,int);
-/*IMPORT_C*/ const char *sqlite3_column_table_name(sqlite3_stmt*,int);
-/*IMPORT_C*/ const void *sqlite3_column_table_name16(sqlite3_stmt*,int);
-/*IMPORT_C*/ const char *sqlite3_column_origin_name(sqlite3_stmt*,int);
-/*IMPORT_C*/ const void *sqlite3_column_origin_name16(sqlite3_stmt*,int);
-
-/*
-** CAPI3REF: Declared Datatype Of A Query Result {F13760}
-**
-** The first parameter is a [sqlite3_stmt | compiled SQL statement].
-** {F13761} If this statement is a SELECT statement and the Nth column of the
-** returned result set of that SELECT is a table column (not an
-** expression or subquery) then the declared type of the table
-** column is returned. {F13762} If the Nth column of the result set is an
-** expression or subquery, then a NULL pointer is returned.
-** {F13763} The returned string is always UTF-8 encoded. {END}
-** For example, in the database schema:
-**
-** CREATE TABLE t1(c1 VARIANT);
-**
-** And the following statement compiled:
-**
-** SELECT c1 + 1, c1 FROM t1;
-**
-** Then this routine would return the string "VARIANT" for the second
-** result column (i==1), and a NULL pointer for the first result column
-** (i==0).
-**
-** SQLite uses dynamic run-time typing. So just because a column
-** is declared to contain a particular type does not mean that the
-** data stored in that column is of the declared type. SQLite is
-** strongly typed, but the typing is dynamic not static. Type
-** is associated with individual values, not with the containers
-** used to hold those values.
-*/
-/*IMPORT_C*/ const char *sqlite3_column_decltype(sqlite3_stmt *, int i);
-/*IMPORT_C*/ const void *sqlite3_column_decltype16(sqlite3_stmt*,int);
-
-/*
-** CAPI3REF: Evaluate An SQL Statement {F13200}
-**
-** After an [sqlite3_stmt | SQL statement] has been prepared with a call
-** to either [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()] or to one of
-** the legacy interfaces [sqlite3_prepare()] or [sqlite3_prepare16()],
-** then this function must be called one or more times to evaluate the
-** statement.
-**
-** The details of the behavior of this sqlite3_step() interface depend
-** on whether the statement was prepared using the newer "v2" interface
-** [sqlite3_prepare_v2()] and [sqlite3_prepare16_v2()] or the older legacy
-** interface [sqlite3_prepare()] and [sqlite3_prepare16()]. The use of the
-** new "v2" interface is recommended for new applications but the legacy
-** interface will continue to be supported.
-**
-** In the lagacy interface, the return value will be either [SQLITE_BUSY],
-** [SQLITE_DONE], [SQLITE_ROW], [SQLITE_ERROR], or [SQLITE_MISUSE].
-** With the "v2" interface, any of the other [SQLITE_OK | result code]
-** or [SQLITE_IOERR_READ | extended result code] might be returned as
-** well.
-**
-** [SQLITE_BUSY] means that the database engine was unable to acquire the
-** database locks it needs to do its job. If the statement is a COMMIT
-** or occurs outside of an explicit transaction, then you can retry the
-** statement. If the statement is not a COMMIT and occurs within a
-** explicit transaction then you should rollback the transaction before
-** continuing.
-**
-** [SQLITE_DONE] means that the statement has finished executing
-** successfully. sqlite3_step() should not be called again on this virtual
-** machine without first calling [sqlite3_reset()] to reset the virtual
-** machine back to its initial state.
-**
-** If the SQL statement being executed returns any data, then
-** [SQLITE_ROW] is returned each time a new row of data is ready
-** for processing by the caller. The values may be accessed using
-** the [sqlite3_column_int | column access functions].
-** sqlite3_step() is called again to retrieve the next row of data.
-**
-** [SQLITE_ERROR] means that a run-time error (such as a constraint
-** violation) has occurred. sqlite3_step() should not be called again on
-** the VM. More information may be found by calling [sqlite3_errmsg()].
-** With the legacy interface, a more specific error code (example:
-** [SQLITE_INTERRUPT], [SQLITE_SCHEMA], [SQLITE_CORRUPT], and so forth)
-** can be obtained by calling [sqlite3_reset()] on the
-** [sqlite3_stmt | prepared statement]. In the "v2" interface,
-** the more specific error code is returned directly by sqlite3_step().
-**
-** [SQLITE_MISUSE] means that the this routine was called inappropriately.
-** Perhaps it was called on a [sqlite3_stmt | prepared statement] that has
-** already been [sqlite3_finalize | finalized] or on one that had
-** previously returned [SQLITE_ERROR] or [SQLITE_DONE]. Or it could
-** be the case that the same database connection is being used by two or
-** more threads at the same moment in time.
-**
-** Goofy Interface Alert:
-** In the legacy interface,
-** the sqlite3_step() API always returns a generic error code,
-** [SQLITE_ERROR], following any error other than [SQLITE_BUSY]
-** and [SQLITE_MISUSE]. You must call [sqlite3_reset()] or
-** [sqlite3_finalize()] in order to find one of the specific
-** [SQLITE_ERROR | result codes] that better describes the error.
-** We admit that this is a goofy design. The problem has been fixed
-** with the "v2" interface. If you prepare all of your SQL statements
-** using either [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()] instead
-** of the legacy [sqlite3_prepare()] and [sqlite3_prepare16()], then the
-** more specific [SQLITE_ERROR | result codes] are returned directly
-** by sqlite3_step(). The use of the "v2" interface is recommended.
-*/
-/*IMPORT_C*/ int sqlite3_step(sqlite3_stmt*);
-
-/*
-** CAPI3REF: Number of columns in a result set {F13770}
-**
-** Return the number of values in the current row of the result set.
-**
-** {F13771} After a call to [sqlite3_step()] that returns [SQLITE_ROW],
-** this routine
-** will return the same value as the [sqlite3_column_count()] function.
-** {F13772}
-** After [sqlite3_step()] has returned an [SQLITE_DONE], [SQLITE_BUSY], or
-** a [SQLITE_ERROR | error code], or before [sqlite3_step()] has been
-** called on the [sqlite3_stmt | prepared statement] for the first time,
-** this routine returns zero.
-*/
-/*IMPORT_C*/ int sqlite3_data_count(sqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Fundamental Datatypes {F10265}
-**
-** {F10266}Every value in SQLite has one of five fundamental datatypes:
-**
-**
-** - 64-bit signed integer
-**
- 64-bit IEEE floating point number
-**
- string
-**
- BLOB
-**
- NULL
-**
{END}
-**
-** These constants are codes for each of those types.
-**
-** Note that the SQLITE_TEXT constant was also used in SQLite version 2
-** for a completely different meaning. Software that links against both
-** SQLite version 2 and SQLite version 3 should use SQLITE3_TEXT not
-** SQLITE_TEXT.
-*/
-#define SQLITE_INTEGER 1
-#define SQLITE_FLOAT 2
-#define SQLITE_BLOB 4
-#define SQLITE_NULL 5
-#ifdef SQLITE_TEXT
-# undef SQLITE_TEXT
-#else
-# define SQLITE_TEXT 3
-#endif
-#define SQLITE3_TEXT 3
-
-/*
-** CAPI3REF: Results Values From A Query {F13800}
-**
-** These routines return information about
-** a single column of the current result row of a query. In every
-** case the first argument is a pointer to the
-** [sqlite3_stmt | SQL statement] that is being
-** evaluated (the [sqlite3_stmt*] that was returned from
-** [sqlite3_prepare_v2()] or one of its variants) and
-** the second argument is the index of the column for which information
-** should be returned. The left-most column of the result set
-** has an index of 0.
-**
-** If the SQL statement is not currently point to a valid row, or if the
-** the column index is out of range, the result is undefined.
-** These routines may only be called when the most recent call to
-** [sqlite3_step()] has returned [SQLITE_ROW] and neither
-** [sqlite3_reset()] nor [sqlite3_finalize()] has been call subsequently.
-** If any of these routines are called after [sqlite3_reset()] or
-** [sqlite3_finalize()] or after [sqlite3_step()] has returned
-** something other than [SQLITE_ROW], the results are undefined.
-** If [sqlite3_step()] or [sqlite3_reset()] or [sqlite3_finalize()]
-** are called from a different thread while any of these routines
-** are pending, then the results are undefined.
-**
-** The sqlite3_column_type() routine returns
-** [SQLITE_INTEGER | datatype code] for the initial data type
-** of the result column. The returned value is one of [SQLITE_INTEGER],
-** [SQLITE_FLOAT], [SQLITE_TEXT], [SQLITE_BLOB], or [SQLITE_NULL]. The value
-** returned by sqlite3_column_type() is only meaningful if no type
-** conversions have occurred as described below. After a type conversion,
-** the value returned by sqlite3_column_type() is undefined. Future
-** versions of SQLite may change the behavior of sqlite3_column_type()
-** following a type conversion.
-**
-** If the result is a BLOB or UTF-8 string then the sqlite3_column_bytes()
-** routine returns the number of bytes in that BLOB or string.
-** If the result is a UTF-16 string, then sqlite3_column_bytes() converts
-** the string to UTF-8 and then returns the number of bytes.
-** If the result is a numeric value then sqlite3_column_bytes() uses
-** [sqlite3_snprintf()] to convert that value to a UTF-8 string and returns
-** the number of bytes in that string.
-** The value returned does not include the zero terminator at the end
-** of the string. For clarity: the value returned is the number of
-** bytes in the string, not the number of characters.
-**
-** Strings returned by sqlite3_column_text() and sqlite3_column_text16(),
-** even zero-length strings, are always zero terminated. The return
-** value from sqlite3_column_blob() for a zero-length blob is an arbitrary
-** pointer, possibly even a NULL pointer.
-**
-** The sqlite3_column_bytes16() routine is similar to sqlite3_column_bytes()
-** but leaves the result in UTF-16 instead of UTF-8.
-** The zero terminator is not included in this count.
-**
-** These routines attempt to convert the value where appropriate. For
-** example, if the internal representation is FLOAT and a text result
-** is requested, [sqlite3_snprintf()] is used internally to do the conversion
-** automatically. The following table details the conversions that
-** are applied:
-**
-**
-**
-** Internal
Type | Requested
Type | Conversion
-**
-** |
|---|
| NULL | INTEGER | Result is 0
-** |
| NULL | FLOAT | Result is 0.0
-** |
| NULL | TEXT | Result is NULL pointer
-** |
| NULL | BLOB | Result is NULL pointer
-** |
| INTEGER | FLOAT | Convert from integer to float
-** |
| INTEGER | TEXT | ASCII rendering of the integer
-** |
| INTEGER | BLOB | Same as for INTEGER->TEXT
-** |
| FLOAT | INTEGER | Convert from float to integer
-** |
| FLOAT | TEXT | ASCII rendering of the float
-** |
| FLOAT | BLOB | Same as FLOAT->TEXT
-** |
| TEXT | INTEGER | Use atoi()
-** |
| TEXT | FLOAT | Use atof()
-** |
| TEXT | BLOB | No change
-** |
| BLOB | INTEGER | Convert to TEXT then use atoi()
-** |
| BLOB | FLOAT | Convert to TEXT then use atof()
-** |
| BLOB | TEXT | Add a zero terminator if needed
-** |
-**
-**
-** The table above makes reference to standard C library functions atoi()
-** and atof(). SQLite does not really use these functions. It has its
-** on equavalent internal routines. The atoi() and atof() names are
-** used in the table for brevity and because they are familiar to most
-** C programmers.
-**
-** Note that when type conversions occur, pointers returned by prior
-** calls to sqlite3_column_blob(), sqlite3_column_text(), and/or
-** sqlite3_column_text16() may be invalidated.
-** Type conversions and pointer invalidations might occur
-** in the following cases:
-**
-**
-** The initial content is a BLOB and sqlite3_column_text()
-** or sqlite3_column_text16() is called. A zero-terminator might
-** need to be added to the string.
The initial content is UTF-8 text and sqlite3_column_bytes16() or
-** sqlite3_column_text16() is called. The content must be converted
-** to UTF-16.
The initial content is UTF-16 text and sqlite3_column_bytes() or
-** sqlite3_column_text() is called. The content must be converted
-** to UTF-8.
-**
-** Conversions between UTF-16be and UTF-16le are always done in place and do
-** not invalidate a prior pointer, though of course the content of the buffer
-** that the prior pointer points to will have been modified. Other kinds
-** of conversion are done in place when it is possible, but sometime it is
-** not possible and in those cases prior pointers are invalidated.
-**
-** The safest and easiest to remember policy is to invoke these routines
-** in one of the following ways:
-**
-**
-** - sqlite3_column_text() followed by sqlite3_column_bytes()
-** - sqlite3_column_blob() followed by sqlite3_column_bytes()
-** - sqlite3_column_text16() followed by sqlite3_column_bytes16()
-**
-**
-** In other words, you should call sqlite3_column_text(), sqlite3_column_blob(),
-** or sqlite3_column_text16() first to force the result into the desired
-** format, then invoke sqlite3_column_bytes() or sqlite3_column_bytes16() to
-** find the size of the result. Do not mix call to sqlite3_column_text() or
-** sqlite3_column_blob() with calls to sqlite3_column_bytes16(). And do not
-** mix calls to sqlite3_column_text16() with calls to sqlite3_column_bytes().
-**
-** The pointers returned are valid until a type conversion occurs as
-** described above, or until [sqlite3_step()] or [sqlite3_reset()] or
-** [sqlite3_finalize()] is called. The memory space used to hold strings
-** and blobs is freed automatically. Do not pass the pointers returned
-** [sqlite3_column_blob()], [sqlite3_column_text()], etc. into
-** [sqlite3_free()].
-**
-** If a memory allocation error occurs during the evaluation of any
-** of these routines, a default value is returned. The default value
-** is either the integer 0, the floating point number 0.0, or a NULL
-** pointer. Subsequent calls to [sqlite3_errcode()] will return
-** [SQLITE_NOMEM].
-*/
-/*IMPORT_C*/ const void *sqlite3_column_blob(sqlite3_stmt*, int iCol);
-/*IMPORT_C*/ int sqlite3_column_bytes(sqlite3_stmt*, int iCol);
-/*IMPORT_C*/ int sqlite3_column_bytes16(sqlite3_stmt*, int iCol);
-/*IMPORT_C*/ double sqlite3_column_double(sqlite3_stmt*, int iCol);
-/*IMPORT_C*/ int sqlite3_column_int(sqlite3_stmt*, int iCol);
-/*IMPORT_C*/ sqlite3_int64 sqlite3_column_int64(sqlite3_stmt*, int iCol);
-/*IMPORT_C*/ const unsigned char *sqlite3_column_text(sqlite3_stmt*, int iCol);
-/*IMPORT_C*/ const void *sqlite3_column_text16(sqlite3_stmt*, int iCol);
-/*IMPORT_C*/ int sqlite3_column_type(sqlite3_stmt*, int iCol);
-/*IMPORT_C*/ sqlite3_value *sqlite3_column_value(sqlite3_stmt*, int iCol);
-
-/*
-** CAPI3REF: Destroy A Prepared Statement Object {F13300}
-**
-** The sqlite3_finalize() function is called to delete a
-** [sqlite3_stmt | compiled SQL statement]. If the statement was
-** executed successfully, or not executed at all, then SQLITE_OK is returned.
-** If execution of the statement failed then an
-** [SQLITE_ERROR | error code] or [SQLITE_IOERR_READ | extended error code]
-** is returned.
-**
-** This routine can be called at any point during the execution of the
-** [sqlite3_stmt | virtual machine]. If the virtual machine has not
-** completed execution when this routine is called, that is like
-** encountering an error or an interrupt. (See [sqlite3_interrupt()].)
-** Incomplete updates may be rolled back and transactions cancelled,
-** depending on the circumstances, and the
-** [SQLITE_ERROR | result code] returned will be [SQLITE_ABORT].
-*/
-/*IMPORT_C*/ int sqlite3_finalize(sqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Reset A Prepared Statement Object {F13330}
-**
-** The sqlite3_reset() function is called to reset a
-** [sqlite3_stmt | compiled SQL statement] object.
-** back to its initial state, ready to be re-executed.
-** Any SQL statement variables that had values bound to them using
-** the [sqlite3_bind_blob | sqlite3_bind_*() API] retain their values.
-** Use [sqlite3_clear_bindings()] to reset the bindings.
-*/
-/*IMPORT_C*/ int sqlite3_reset(sqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Create Or Redefine SQL Functions {F16100}
-**
-** The following two functions are used to add SQL functions or aggregates
-** or to redefine the behavior of existing SQL functions or aggregates. The
-** difference only between the two is that the second parameter, the
-** name of the (scalar) function or aggregate, is encoded in UTF-8 for
-** sqlite3_create_function() and UTF-16 for sqlite3_create_function16().
-**
-** The first argument is the [sqlite3 | database handle] that holds the
-** SQL function or aggregate is to be added or redefined. If a single
-** program uses more than one database handle internally, then SQL
-** functions or aggregates must be added individually to each database
-** handle with which they will be used.
-**
-** The second parameter is the name of the SQL function to be created
-** or redefined.
-** The length of the name is limited to 255 bytes, exclusive of the
-** zero-terminator. Note that the name length limit is in bytes, not
-** characters. Any attempt to create a function with a longer name
-** will result in an SQLITE_ERROR error.
-**
-** The third parameter is the number of arguments that the SQL function or
-** aggregate takes. If this parameter is negative, then the SQL function or
-** aggregate may take any number of arguments.
-**
-** The fourth parameter, eTextRep, specifies what
-** [SQLITE_UTF8 | text encoding] this SQL function prefers for
-** its parameters. Any SQL function implementation should be able to work
-** work with UTF-8, UTF-16le, or UTF-16be. But some implementations may be
-** more efficient with one encoding than another. It is allowed to
-** invoke sqlite3_create_function() or sqlite3_create_function16() multiple
-** times with the same function but with different values of eTextRep.
-** When multiple implementations of the same function are available, SQLite
-** will pick the one that involves the least amount of data conversion.
-** If there is only a single implementation which does not care what
-** text encoding is used, then the fourth argument should be
-** [SQLITE_ANY].
-**
-** The fifth parameter is an arbitrary pointer. The implementation
-** of the function can gain access to this pointer using
-** [sqlite3_user_data()].
-**
-** The seventh, eighth and ninth parameters, xFunc, xStep and xFinal, are
-** pointers to C-language functions that implement the SQL
-** function or aggregate. A scalar SQL function requires an implementation of
-** the xFunc callback only, NULL pointers should be passed as the xStep
-** and xFinal parameters. An aggregate SQL function requires an implementation
-** of xStep and xFinal and NULL should be passed for xFunc. To delete an
-** existing SQL function or aggregate, pass NULL for all three function
-** callback.
-**
-** It is permitted to register multiple implementations of the same
-** functions with the same name but with either differing numbers of
-** arguments or differing perferred text encodings. SQLite will use
-** the implementation most closely matches the way in which the
-** SQL function is used.
-*/
-/*IMPORT_C*/ int sqlite3_create_function(
- sqlite3 *,
- const char *zFunctionName,
- int nArg,
- int eTextRep,
- void*,
- void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
- void (*xStep)(sqlite3_context*,int,sqlite3_value**),
- void (*xFinal)(sqlite3_context*)
-);
-/*IMPORT_C*/ int sqlite3_create_function16(
- sqlite3*,
- const void *zFunctionName,
- int nArg,
- int eTextRep,
- void*,
- void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
- void (*xStep)(sqlite3_context*,int,sqlite3_value**),
- void (*xFinal)(sqlite3_context*)
-);
-
-/*
-** CAPI3REF: Text Encodings {F10267}
-**
-** These constant define integer codes that represent the various
-** text encodings supported by SQLite.
-*/
-#define SQLITE_UTF8 1
-#define SQLITE_UTF16LE 2
-#define SQLITE_UTF16BE 3
-#define SQLITE_UTF16 4 /* Use native byte order */
-#define SQLITE_ANY 5 /* sqlite3_create_function only */
-#define SQLITE_UTF16_ALIGNED 8 /* sqlite3_create_collation only */
-
-/*
-** CAPI3REF: Obsolete Functions
-**
-** These functions are all now obsolete. In order to maintain
-** backwards compatibility with older code, we continue to support
-** these functions. However, new development projects should avoid
-** the use of these functions. To help encourage people to avoid
-** using these functions, we are not going to tell you want they do.
-*/
-/*IMPORT_C*/ int sqlite3_aggregate_count(sqlite3_context*);
-/*IMPORT_C*/ int sqlite3_expired(sqlite3_stmt*);
-/*IMPORT_C*/ int sqlite3_transfer_bindings(sqlite3_stmt*, sqlite3_stmt*);
-/*IMPORT_C*/ int sqlite3_global_recover(void);
-/*IMPORT_C*/ void sqlite3_thread_cleanup(void);
-/*IMPORT_C*/ int sqlite3_memory_alarm(void(*)(void*,sqlite3_int64,int),void*,sqlite3_int64);
-
-/*
-** CAPI3REF: Obtaining SQL Function Parameter Values {F15100}
-**
-** The C-language implementation of SQL functions and aggregates uses
-** this set of interface routines to access the parameter values on
-** the function or aggregate.
-**
-** The xFunc (for scalar functions) or xStep (for aggregates) parameters
-** to [sqlite3_create_function()] and [sqlite3_create_function16()]
-** define callbacks that implement the SQL functions and aggregates.
-** The 4th parameter to these callbacks is an array of pointers to
-** [sqlite3_value] objects. There is one [sqlite3_value] object for
-** each parameter to the SQL function. These routines are used to
-** extract values from the [sqlite3_value] objects.
-**
-** These routines work just like the corresponding
-** [sqlite3_column_blob | sqlite3_column_* routines] except that
-** these routines take a single [sqlite3_value*] pointer instead
-** of an [sqlite3_stmt*] pointer and an integer column number.
-**
-** The sqlite3_value_text16() interface extracts a UTF16 string
-** in the native byte-order of the host machine. The
-** sqlite3_value_text16be() and sqlite3_value_text16le() interfaces
-** extract UTF16 strings as big-endian and little-endian respectively.
-**
-** The sqlite3_value_numeric_type() interface attempts to apply
-** numeric affinity to the value. This means that an attempt is
-** made to convert the value to an integer or floating point. If
-** such a conversion is possible without loss of information (in other
-** words if the value is a string that looks like a number)
-** then the conversion is done. Otherwise no conversion occurs. The
-** [SQLITE_INTEGER | datatype] after conversion is returned.
-**
-** Please pay particular attention to the fact that the pointer that
-** is returned from [sqlite3_value_blob()], [sqlite3_value_text()], or
-** [sqlite3_value_text16()] can be invalidated by a subsequent call to
-** [sqlite3_value_bytes()], [sqlite3_value_bytes16()], [sqlite3_value_text()],
-** or [sqlite3_value_text16()].
-**
-** These routines must be called from the same thread as
-** the SQL function that supplied the sqlite3_value* parameters.
-** Or, if the sqlite3_value* argument comes from the [sqlite3_column_value()]
-** interface, then these routines should be called from the same thread
-** that ran [sqlite3_column_value()].
-**
-*/
-/*IMPORT_C*/ const void *sqlite3_value_blob(sqlite3_value*);
-/*IMPORT_C*/ int sqlite3_value_bytes(sqlite3_value*);
-/*IMPORT_C*/ int sqlite3_value_bytes16(sqlite3_value*);
-/*IMPORT_C*/ double sqlite3_value_double(sqlite3_value*);
-/*IMPORT_C*/ int sqlite3_value_int(sqlite3_value*);
-/*IMPORT_C*/ sqlite3_int64 sqlite3_value_int64(sqlite3_value*);
-/*IMPORT_C*/ const unsigned char *sqlite3_value_text(sqlite3_value*);
-/*IMPORT_C*/ const void *sqlite3_value_text16(sqlite3_value*);
-/*IMPORT_C*/ const void *sqlite3_value_text16le(sqlite3_value*);
-/*IMPORT_C*/ const void *sqlite3_value_text16be(sqlite3_value*);
-/*IMPORT_C*/ int sqlite3_value_type(sqlite3_value*);
-/*IMPORT_C*/ int sqlite3_value_numeric_type(sqlite3_value*);
-
-/*
-** CAPI3REF: Obtain Aggregate Function Context {F16210}
-**
-** The implementation of aggregate SQL functions use this routine to allocate
-** a structure for storing their state.
-** {F16211} The first time the sqlite3_aggregate_context() routine is
-** is called for a particular aggregate, SQLite allocates nBytes of memory
-** zeros that memory, and returns a pointer to it.
-** {F16212} On second and subsequent calls to sqlite3_aggregate_context()
-** for the same aggregate function index, the same buffer is returned. {END}
-** The implementation
-** of the aggregate can use the returned buffer to accumulate data.
-**
-** {F16213} SQLite automatically frees the allocated buffer when the aggregate
-** query concludes. {END}
-**
-** The first parameter should be a copy of the
-** [sqlite3_context | SQL function context] that is the first
-** parameter to the callback routine that implements the aggregate
-** function.
-**
-** This routine must be called from the same thread in which
-** the aggregate SQL function is running.
-*/
-/*IMPORT_C*/ void *sqlite3_aggregate_context(sqlite3_context*, int nBytes);
-
-/*
-** CAPI3REF: User Data For Functions {F16240}
-**
-** {F16241} The sqlite3_user_data() interface returns a copy of
-** the pointer that was the pUserData parameter (the 5th parameter)
-** of the the [sqlite3_create_function()]
-** and [sqlite3_create_function16()] routines that originally
-** registered the application defined function. {END}
-**
-** {U16243} This routine must be called from the same thread in which
-** the application-defined function is running.
-*/
-/*IMPORT_C*/ void *sqlite3_user_data(sqlite3_context*);
-
-/*
-** CAPI3REF: Function Auxiliary Data {F16270}
-**
-** The following two functions may be used by scalar SQL functions to
-** associate meta-data with argument values. If the same value is passed to
-** multiple invocations of the same SQL function during query execution, under
-** some circumstances the associated meta-data may be preserved. This may
-** be used, for example, to add a regular-expression matching scalar
-** function. The compiled version of the regular expression is stored as
-** meta-data associated with the SQL value passed as the regular expression
-** pattern. The compiled regular expression can be reused on multiple
-** invocations of the same function so that the original pattern string
-** does not need to be recompiled on each invocation.
-**
-** {F16271}
-** The sqlite3_get_auxdata() interface returns a pointer to the meta-data
-** associated by the sqlite3_set_auxdata() function with the Nth argument
-** value to the application-defined function.
-** {F16272} If no meta-data has been ever been set for the Nth
-** argument of the function, or if the cooresponding function parameter
-** has changed since the meta-data was set, then sqlite3_get_auxdata()
-** returns a NULL pointer.
-**
-** {F16275} The sqlite3_set_auxdata() interface saves the meta-data
-** pointed to by its 3rd parameter as the meta-data for the N-th
-** argument of the application-defined function. {END} Subsequent
-** calls to sqlite3_get_auxdata() might return this data, if it has
-** not been destroyed.
-** {F16277} If it is not NULL, SQLite will invoke the destructor
-** function given by the 4th parameter to sqlite3_set_auxdata() on
-** the meta-data when the corresponding function parameter changes
-** or when the SQL statement completes, whichever comes first. {END}
-**
-** In practice, meta-data is preserved between function calls for
-** expressions that are constant at compile time. This includes literal
-** values and SQL variables.
-**
-** These routines must be called from the same thread in which
-** the SQL function is running.
-*/
-/*IMPORT_C*/ void *sqlite3_get_auxdata(sqlite3_context*, int N);
-/*IMPORT_C*/ void sqlite3_set_auxdata(sqlite3_context*, int N, void*, void (*)(void*));
-
-
-/*
-** CAPI3REF: Constants Defining Special Destructor Behavior {F10280}
-**
-** These are special value for the destructor that is passed in as the
-** final argument to routines like [sqlite3_result_blob()]. If the destructor
-** argument is SQLITE_STATIC, it means that the content pointer is constant
-** and will never change. It does not need to be destroyed. The
-** SQLITE_TRANSIENT value means that the content will likely change in
-** the near future and that SQLite should make its own private copy of
-** the content before returning.
-**
-** The typedef is necessary to work around problems in certain
-** C++ compilers. See ticket #2191.
-*/
-typedef void (*sqlite3_destructor_type)(void*);
-#define SQLITE_STATIC ((sqlite3_destructor_type)0)
-#define SQLITE_TRANSIENT ((sqlite3_destructor_type)-1)
-
-/*
-** CAPI3REF: Setting The Result Of An SQL Function {F16400}
-**
-** These routines are used by the xFunc or xFinal callbacks that
-** implement SQL functions and aggregates. See
-** [sqlite3_create_function()] and [sqlite3_create_function16()]
-** for additional information.
-**
-** These functions work very much like the
-** [sqlite3_bind_blob | sqlite3_bind_*] family of functions used
-** to bind values to host parameters in prepared statements.
-** Refer to the
-** [sqlite3_bind_blob | sqlite3_bind_* documentation] for
-** additional information.
-**
-** {F16402} The sqlite3_result_blob() interface sets the result from
-** an application defined function to be the BLOB whose content is pointed
-** to by the second parameter and which is N bytes long where N is the
-** third parameter.
-** {F16403} The sqlite3_result_zeroblob() inerfaces set the result of
-** the application defined function to be a BLOB containing all zero
-** bytes and N bytes in size, where N is the value of the 2nd parameter.
-**
-** {F16407} The sqlite3_result_double() interface sets the result from
-** an application defined function to be a floating point value specified
-** by its 2nd argument.
-**
-** {F16409} The sqlite3_result_error() and sqlite3_result_error16() functions
-** cause the implemented SQL function to throw an exception.
-** {F16411} SQLite uses the string pointed to by the
-** 2nd parameter of sqlite3_result_error() or sqlite3_result_error16()
-** as the text of an error message. {F16412} SQLite interprets the error
-** message string from sqlite3_result_error() as UTF8. {F16413} SQLite
-** interprets the string from sqlite3_result_error16() as UTF16 in native
-** byte order. {F16414} If the third parameter to sqlite3_result_error()
-** or sqlite3_result_error16() is negative then SQLite takes as the error
-** message all text up through the first zero character.
-** {F16415} If the third parameter to sqlite3_result_error() or
-** sqlite3_result_error16() is non-negative then SQLite takes that many
-** bytes (not characters) from the 2nd parameter as the error message.
-** {F16417} The sqlite3_result_error() and sqlite3_result_error16()
-** routines make a copy private copy of the error message text before
-** they return. {END} Hence, the calling function can deallocate or
-** modify the text after they return without harm.
-**
-** {F16421} The sqlite3_result_toobig() interface causes SQLite
-** to throw an error indicating that a string or BLOB is to long
-** to represent. {F16422} The sqlite3_result_nomem() interface
-** causes SQLite to throw an exception indicating that the a
-** memory allocation failed.
-**
-** {F16431} The sqlite3_result_int() interface sets the return value
-** of the application-defined function to be the 32-bit signed integer
-** value given in the 2nd argument.
-** {F16432} The sqlite3_result_int64() interface sets the return value
-** of the application-defined function to be the 64-bit signed integer
-** value given in the 2nd argument.
-**
-** {F16437} The sqlite3_result_null() interface sets the return value
-** of the application-defined function to be NULL.
-**
-** {F16441} The sqlite3_result_text(), sqlite3_result_text16(),
-** sqlite3_result_text16le(), and sqlite3_result_text16be() interfaces
-** set the return value of the application-defined function to be
-** a text string which is represented as UTF-8, UTF-16 native byte order,
-** UTF-16 little endian, or UTF-16 big endian, respectively.
-** {F16442} SQLite takes the text result from the application from
-** the 2nd parameter of the sqlite3_result_text* interfaces.
-** {F16444} If the 3rd parameter to the sqlite3_result_text* interfaces
-** is negative, then SQLite takes result text from the 2nd parameter
-** through the first zero character.
-** {F16447} If the 3rd parameter to the sqlite3_result_text* interfaces
-** is non-negative, then as many bytes (not characters) of the text
-** pointed to by the 2nd parameter are taken as the application-defined
-** function result.
-** {F16451} If the 4th parameter to the sqlite3_result_text* interfaces
-** or sqlite3_result_blob is a non-NULL pointer, then SQLite calls that
-** function as the destructor on the text or blob result when it has
-** finished using that result.
-** {F16453} If the 4th parameter to the sqlite3_result_text* interfaces
-** or sqlite3_result_blob is the special constant SQLITE_STATIC, then
-** SQLite assumes that the text or blob result is constant space and
-** does not copy the space or call a destructor when it has
-** finished using that result.
-** {F16454} If the 4th parameter to the sqlite3_result_text* interfaces
-** or sqlite3_result_blob is the special constant SQLITE_TRANSIENT
-** then SQLite makes a copy of the result into space obtained from
-** from [sqlite3_malloc()] before it returns.
-**
-** {F16461} The sqlite3_result_value() interface sets the result of
-** the application-defined function to be a copy the [sqlite3_value]
-** object specified by the 2nd parameter. {F16463} The
-** sqlite3_result_value() interface makes a copy of the [sqlite3_value]
-** so that [sqlite3_value] specified in the parameter may change or
-** be deallocated after sqlite3_result_value() returns without harm.
-**
-** {U16491} These routines are called from within the different thread
-** than the one containing the application-defined function that recieved
-** the [sqlite3_context] pointer, the results are undefined.
-*/
-/*IMPORT_C*/ void sqlite3_result_blob(sqlite3_context*, const void*, int, void(*)(void*));
-/*IMPORT_C*/ void sqlite3_result_double(sqlite3_context*, double);
-/*IMPORT_C*/ void sqlite3_result_error(sqlite3_context*, const char*, int);
-/*IMPORT_C*/ void sqlite3_result_error16(sqlite3_context*, const void*, int);
-/*IMPORT_C*/ void sqlite3_result_error_toobig(sqlite3_context*);
-/*IMPORT_C*/ void sqlite3_result_error_nomem(sqlite3_context*);
-/*IMPORT_C*/ void sqlite3_result_int(sqlite3_context*, int);
-/*IMPORT_C*/ void sqlite3_result_int64(sqlite3_context*, sqlite3_int64);
-/*IMPORT_C*/ void sqlite3_result_null(sqlite3_context*);
-/*IMPORT_C*/ void sqlite3_result_text(sqlite3_context*, const char*, int, void(*)(void*));
-/*IMPORT_C*/ void sqlite3_result_text16(sqlite3_context*, const void*, int, void(*)(void*));
-/*IMPORT_C*/ void sqlite3_result_text16le(sqlite3_context*, const void*, int,void(*)(void*));
-/*IMPORT_C*/ void sqlite3_result_text16be(sqlite3_context*, const void*, int,void(*)(void*));
-/*IMPORT_C*/ void sqlite3_result_value(sqlite3_context*, sqlite3_value*);
-/*IMPORT_C*/ void sqlite3_result_zeroblob(sqlite3_context*, int n);
-
-/*
-** CAPI3REF: Define New Collating Sequences {F16600}
-**
-** {F16601}
-** These functions are used to add new collation sequences to the
-** [sqlite3*] handle specified as the first argument.
-**
-** {F16602}
-** The name of the new collation sequence is specified as a UTF-8 string
-** for sqlite3_create_collation() and sqlite3_create_collation_v2()
-** and a UTF-16 string for sqlite3_create_collation16(). {F16603} In all cases
-** the name is passed as the second function argument.
-**
-** {F16604}
-** The third argument may be one of the constants [SQLITE_UTF8],
-** [SQLITE_UTF16LE] or [SQLITE_UTF16BE], indicating that the user-supplied
-** routine expects to be passed pointers to strings encoded using UTF-8,
-** UTF-16 little-endian or UTF-16 big-endian respectively. {F16605} The
-** third argument might also be [SQLITE_UTF16_ALIGNED] to indicate that
-** the routine expects pointers to 16-bit word aligned strings
-** of UTF16 in the native byte order of the host computer.
-**
-** {F16607}
-** A pointer to the user supplied routine must be passed as the fifth
-** argument. {F16609} If it is NULL, this is the same as deleting the collation
-** sequence (so that SQLite cannot call it anymore).
-** {F16611} Each time the application
-** supplied function is invoked, it is passed a copy of the void* passed as
-** the fourth argument to sqlite3_create_collation() or
-** sqlite3_create_collation16() as its first parameter.
-**
-** {F16612}
-** The remaining arguments to the application-supplied routine are two strings,
-** each represented by a [length, data] pair and encoded in the encoding
-** that was passed as the third argument when the collation sequence was
-** registered. {END} The application defined collation routine should
-** return negative, zero or positive if
-** the first string is less than, equal to, or greater than the second
-** string. i.e. (STRING1 - STRING2).
-**
-** {F16615}
-** The sqlite3_create_collation_v2() works like sqlite3_create_collation()
-** excapt that it takes an extra argument which is a destructor for
-** the collation. {F16617} The destructor is called when the collation is
-** destroyed and is passed a copy of the fourth parameter void* pointer
-** of the sqlite3_create_collation_v2().
-** {F16618} Collations are destroyed when
-** they are overridden by later calls to the collation creation functions
-** or when the [sqlite3*] database handle is closed using [sqlite3_close()].
-*/
-/*IMPORT_C*/ int sqlite3_create_collation(
- sqlite3*,
- const char *zName,
- int eTextRep,
- void*,
- int(*xCompare)(void*,int,const void*,int,const void*)
-);
-/*IMPORT_C*/ int sqlite3_create_collation_v2(
- sqlite3*,
- const char *zName,
- int eTextRep,
- void*,
- int(*xCompare)(void*,int,const void*,int,const void*),
- void(*xDestroy)(void*)
-);
-/*IMPORT_C*/ int sqlite3_create_collation16(
- sqlite3*,
- const char *zName,
- int eTextRep,
- void*,
- int(*xCompare)(void*,int,const void*,int,const void*)
-);
-
-/*
-** CAPI3REF: Collation Needed Callbacks {F16700}
-**
-** {F16701}
-** To avoid having to register all collation sequences before a database
-** can be used, a single callback function may be registered with the
-** database handle to be called whenever an undefined collation sequence is
-** required.
-**
-** {F16702}
-** If the function is registered using the sqlite3_collation_needed() API,
-** then it is passed the names of undefined collation sequences as strings
-** encoded in UTF-8. {F16703} If sqlite3_collation_needed16() is used, the names
-** are passed as UTF-16 in machine native byte order. {F16704} A call to either
-** function replaces any existing callback.
-**
-** {F16705} When the callback is invoked, the first argument passed is a copy
-** of the second argument to sqlite3_collation_needed() or
-** sqlite3_collation_needed16(). {F16706} The second argument is the database
-** handle. {F16707} The third argument is one of [SQLITE_UTF8],
-** [SQLITE_UTF16BE], or [SQLITE_UTF16LE], indicating the most
-** desirable form of the collation sequence function required.
-** {F16708} The fourth parameter is the name of the
-** required collation sequence. {END}
-**
-** The callback function should register the desired collation using
-** [sqlite3_create_collation()], [sqlite3_create_collation16()], or
-** [sqlite3_create_collation_v2()].
-*/
-/*IMPORT_C*/ int sqlite3_collation_needed(
- sqlite3*,
- void*,
- void(*)(void*,sqlite3*,int eTextRep,const char*)
-);
-/*IMPORT_C*/ int sqlite3_collation_needed16(
- sqlite3*,
- void*,
- void(*)(void*,sqlite3*,int eTextRep,const void*)
-);
-
-/*
-** Specify the key for an encrypted database. This routine should be
-** called right after sqlite3_open().
-**
-** The code to implement this API is not available in the public release
-** of SQLite.
-*/
-/*IMPORT_C*/ int sqlite3_key(
- sqlite3 *db, /* Database to be rekeyed */
- const void *pKey, int nKey /* The key */
-);
-
-/*
-** Change the key on an open database. If the current database is not
-** encrypted, this routine will encrypt it. If pNew==0 or nNew==0, the
-** database is decrypted.
-**
-** The code to implement this API is not available in the public release
-** of SQLite.
-*/
-/*IMPORT_C*/ int sqlite3_rekey(
- sqlite3 *db, /* Database to be rekeyed */
- const void *pKey, int nKey /* The new key */
-);
-
-/*
-** CAPI3REF: Suspend Execution For A Short Time {F10530}
-**
-** {F10531} The sqlite3_sleep() function
-** causes the current thread to suspend execution
-** for at least a number of milliseconds specified in its parameter.
-**
-** {F10532} If the operating system does not support sleep requests with
-** millisecond time resolution, then the time will be rounded up to
-** the nearest second. {F10533} The number of milliseconds of sleep actually
-** requested from the operating system is returned.
-**
-** {F10534} SQLite implements this interface by calling the xSleep()
-** method of the default [sqlite3_vfs] object. {END}
-*/
-/*IMPORT_C*/ int sqlite3_sleep(int);
-
-/*
-** CAPI3REF: Name Of The Folder Holding Temporary Files {F10310}
-**
-** If this global variable is made to point to a string which is
-** the name of a folder (a.ka. directory), then all temporary files
-** created by SQLite will be placed in that directory. If this variable
-** is NULL pointer, then SQLite does a search for an appropriate temporary
-** file directory.
-**
-** It is not safe to modify this variable once a database connection
-** has been opened. It is intended that this variable be set once
-** as part of process initialization and before any SQLite interface
-** routines have been call and remain unchanged thereafter.
-*/
-SQLITE_EXTERN char *sqlite3_temp_directory;
-
-/*
-** CAPI3REF: Test To See If The Database Is In Auto-Commit Mode {F12930}
-**
-** {F12931} The sqlite3_get_autocommit() interfaces returns non-zero or
-** zero if the given database connection is or is not in autocommit mode,
-** respectively. {F12932} Autocommit mode is on
-** by default. {F12933} Autocommit mode is disabled by a BEGIN statement.
-** {F12934} Autocommit mode is reenabled by a COMMIT or ROLLBACK. {END}
-**
-** If certain kinds of errors occur on a statement within a multi-statement
-** transactions (errors including [SQLITE_FULL], [SQLITE_IOERR],
-** [SQLITE_NOMEM], [SQLITE_BUSY], and [SQLITE_INTERRUPT]) then the
-** transaction might be rolled back automatically. {F12935} The only way to
-** find out if SQLite automatically rolled back the transaction after
-** an error is to use this function. {END}
-**
-** {U12936} If another thread changes the autocommit status of the database
-** connection while this routine is running, then the return value
-** is undefined. {END}
-*/
-/*IMPORT_C*/ int sqlite3_get_autocommit(sqlite3*);
-
-/*
-** CAPI3REF: Find The Database Handle Of A Prepared Statement {F13120}
-**
-** {F13121} The sqlite3_db_handle interface
-** returns the [sqlite3*] database handle to which a
-** [sqlite3_stmt | prepared statement] belongs.
-** {F13122} the database handle returned by sqlite3_db_handle
-** is the same database handle that was
-** the first argument to the [sqlite3_prepare_v2()] or its variants
-** that was used to create the statement in the first place.
-*/
-/*IMPORT_C*/ sqlite3 *sqlite3_db_handle(sqlite3_stmt*);
-
-
-/*
-** CAPI3REF: Commit And Rollback Notification Callbacks {F12950}
-**
-** {F12951} The sqlite3_commit_hook() interface registers a callback
-** function to be invoked whenever a transaction is committed.
-** {F12952} Any callback set by a previous call to sqlite3_commit_hook()
-** for the same database connection is overridden.
-** {F12953} The sqlite3_rollback_hook() interface registers a callback
-** function to be invoked whenever a transaction is committed.
-** {F12954} Any callback set by a previous call to sqlite3_commit_hook()
-** for the same database connection is overridden.
-** {F12956} The pArg argument is passed through
-** to the callback. {F12957} If the callback on a commit hook function
-** returns non-zero, then the commit is converted into a rollback.
-**
-** {F12958} If another function was previously registered, its
-** pArg value is returned. Otherwise NULL is returned.
-**
-** {F12959} Registering a NULL function disables the callback.
-**
-** {F12961} For the purposes of this API, a transaction is said to have been
-** rolled back if an explicit "ROLLBACK" statement is executed, or
-** an error or constraint causes an implicit rollback to occur.
-** {F12962} The rollback callback is not invoked if a transaction is
-** automatically rolled back because the database connection is closed.
-** {F12964} The rollback callback is not invoked if a transaction is
-** rolled back because a commit callback returned non-zero.
-** Check on this {END}
-**
-** These are experimental interfaces and are subject to change.
-*/
-/*IMPORT_C*/ void *sqlite3_commit_hook(sqlite3*, int(*)(void*), void*);
-/*IMPORT_C*/ void *sqlite3_rollback_hook(sqlite3*, void(*)(void *), void*);
-
-/*
-** CAPI3REF: Data Change Notification Callbacks {F12970}
-**
-** {F12971} The sqlite3_update_hook() interface
-** registers a callback function with the database connection identified by the
-** first argument to be invoked whenever a row is updated, inserted or deleted.
-** {F12972} Any callback set by a previous call to this function for the same
-** database connection is overridden.
-**
-** {F12974} The second argument is a pointer to the function to invoke when a
-** row is updated, inserted or deleted.
-** {F12976} The first argument to the callback is
-** a copy of the third argument to sqlite3_update_hook().
-** {F12977} The second callback
-** argument is one of [SQLITE_INSERT], [SQLITE_DELETE] or [SQLITE_UPDATE],
-** depending on the operation that caused the callback to be invoked.
-** {F12978} The third and
-** fourth arguments to the callback contain pointers to the database and
-** table name containing the affected row.
-** {F12979} The final callback parameter is
-** the rowid of the row.
-** {F12981} In the case of an update, this is the rowid after
-** the update takes place.
-**
-** {F12983} The update hook is not invoked when internal system tables are
-** modified (i.e. sqlite_master and sqlite_sequence).
-**
-** {F12984} If another function was previously registered, its pArg value
-** is returned. {F12985} Otherwise NULL is returned.
-*/
-/*IMPORT_C*/ void *sqlite3_update_hook(
- sqlite3*,
- void(*)(void *,int ,char const *,char const *,sqlite3_int64),
- void*
-);
-
-/*
-** CAPI3REF: Enable Or Disable Shared Pager Cache {F10330}
-**
-** {F10331}
-** This routine enables or disables the sharing of the database cache
-** and schema data structures between connections to the same database.
-** {F10332}
-** Sharing is enabled if the argument is true and disabled if the argument
-** is false.
-**
-** {F10333} Cache sharing is enabled and disabled
-** for an entire process. {END} This is a change as of SQLite version 3.5.0.
-** In prior versions of SQLite, sharing was
-** enabled or disabled for each thread separately.
-**
-** {F10334}
-** The cache sharing mode set by this interface effects all subsequent
-** calls to [sqlite3_open()], [sqlite3_open_v2()], and [sqlite3_open16()].
-** {F10335} Existing database connections continue use the sharing mode
-** that was in effect at the time they were opened. {END}
-**
-** Virtual tables cannot be used with a shared cache. {F10336} When shared
-** cache is enabled, the [sqlite3_create_module()] API used to register
-** virtual tables will always return an error. {END}
-**
-** {F10337} This routine returns [SQLITE_OK] if shared cache was
-** enabled or disabled successfully. {F10338} An [SQLITE_ERROR | error code]
-** is returned otherwise. {END}
-**
-** {F10339} Shared cache is disabled by default. {END} But this might change in
-** future releases of SQLite. Applications that care about shared
-** cache setting should set it explicitly.
-*/
-/*IMPORT_C*/ int sqlite3_enable_shared_cache(int);
-
-/*
-** CAPI3REF: Attempt To Free Heap Memory {F17340}
-**
-** {F17341} The sqlite3_release_memory() interface attempts to
-** free N bytes of heap memory by deallocating non-essential memory
-** allocations held by the database labrary. {END} Memory used
-** to cache database pages to improve performance is an example of
-** non-essential memory. {F16342} sqlite3_release_memory() returns
-** the number of bytes actually freed, which might be more or less
-** than the amount requested.
-*/
-/*IMPORT_C*/ int sqlite3_release_memory(int);
-
-/*
-** CAPI3REF: Impose A Limit On Heap Size {F17350}
-**
-** {F16351} The sqlite3_soft_heap_limit() interface
-** places a "soft" limit on the amount of heap memory that may be allocated
-** by SQLite. {F16352} If an internal allocation is requested
-** that would exceed the soft heap limit, [sqlite3_release_memory()] is
-** invoked one or more times to free up some space before the allocation
-** is made. {END}
-**
-** {F16353} The limit is called "soft", because if
-** [sqlite3_release_memory()] cannot
-** free sufficient memory to prevent the limit from being exceeded,
-** the memory is allocated anyway and the current operation proceeds.
-**
-** {F16354}
-** A negative or zero value for N means that there is no soft heap limit and
-** [sqlite3_release_memory()] will only be called when memory is exhausted.
-** {F16355} The default value for the soft heap limit is zero.
-**
-** SQLite makes a best effort to honor the soft heap limit.
-** {F16356} But if the soft heap limit cannot honored, execution will
-** continue without error or notification. {END} This is why the limit is
-** called a "soft" limit. It is advisory only.
-**
-** Prior to SQLite version 3.5.0, this routine only constrained the memory
-** allocated by a single thread - the same thread in which this routine
-** runs. Beginning with SQLite version 3.5.0, the soft heap limit is
-** applied to all threads. {F16357} The value specified for the soft heap limit
-** is an upper bound on the total memory allocation for all threads. {END} In
-** version 3.5.0 there is no mechanism for limiting the heap usage for
-** individual threads.
-*/
-/*IMPORT_C*/ void sqlite3_soft_heap_limit(int);
-
-/*
-** CAPI3REF: Extract Metadata About A Column Of A Table {F12850}
-**
-** This routine
-** returns meta-data about a specific column of a specific database
-** table accessible using the connection handle passed as the first function
-** argument.
-**
-** The column is identified by the second, third and fourth parameters to
-** this function. The second parameter is either the name of the database
-** (i.e. "main", "temp" or an attached database) containing the specified
-** table or NULL. If it is NULL, then all attached databases are searched
-** for the table using the same algorithm as the database engine uses to
-** resolve unqualified table references.
-**
-** The third and fourth parameters to this function are the table and column
-** name of the desired column, respectively. Neither of these parameters
-** may be NULL.
-**
-** Meta information is returned by writing to the memory locations passed as
-** the 5th and subsequent parameters to this function. Any of these
-** arguments may be NULL, in which case the corresponding element of meta
-** information is ommitted.
-**
-**
-** Parameter Output Type Description
-** -----------------------------------
-**
-** 5th const char* Data type
-** 6th const char* Name of the default collation sequence
-** 7th int True if the column has a NOT NULL constraint
-** 8th int True if the column is part of the PRIMARY KEY
-** 9th int True if the column is AUTOINCREMENT
-**
-**
-**
-** The memory pointed to by the character pointers returned for the
-** declaration type and collation sequence is valid only until the next
-** call to any sqlite API function.
-**
-** If the specified table is actually a view, then an error is returned.
-**
-** If the specified column is "rowid", "oid" or "_rowid_" and an
-** INTEGER PRIMARY KEY column has been explicitly declared, then the output
-** parameters are set for the explicitly declared column. If there is no
-** explicitly declared IPK column, then the output parameters are set as
-** follows:
-**
-**
-** data type: "INTEGER"
-** collation sequence: "BINARY"
-** not null: 0
-** primary key: 1
-** auto increment: 0
-**
-**
-** This function may load one or more schemas from database files. If an
-** error occurs during this process, or if the requested table or column
-** cannot be found, an SQLITE error code is returned and an error message
-** left in the database handle (to be retrieved using sqlite3_errmsg()).
-**
-** This API is only available if the library was compiled with the
-** SQLITE_ENABLE_COLUMN_METADATA preprocessor symbol defined.
-*/
-/*IMPORT_C*/ int sqlite3_table_column_metadata(
- sqlite3 *db, /* Connection handle */
- const char *zDbName, /* Database name or NULL */
- const char *zTableName, /* Table name */
- const char *zColumnName, /* Column name */
- char const **pzDataType, /* OUTPUT: Declared data type */
- char const **pzCollSeq, /* OUTPUT: Collation sequence name */
- int *pNotNull, /* OUTPUT: True if NOT NULL constraint exists */
- int *pPrimaryKey, /* OUTPUT: True if column part of PK */
- int *pAutoinc /* OUTPUT: True if column is auto-increment */
-);
-
-/*
-** CAPI3REF: Load An Extension {F12600}
-**
-** {F12601} The sqlite3_load_extension() interface
-** attempts to load an SQLite extension library contained in the file
-** zFile. {F12602} The entry point is zProc. {F12603} zProc may be 0
-** in which case the name of the entry point defaults
-** to "sqlite3_extension_init".
-**
-** {F12604} The sqlite3_load_extension() interface shall
-** return [SQLITE_OK] on success and [SQLITE_ERROR] if something goes wrong.
-**
-** {F12605}
-** If an error occurs and pzErrMsg is not 0, then the
-** sqlite3_load_extension() interface shall attempt to fill *pzErrMsg with
-** error message text stored in memory obtained from [sqlite3_malloc()].
-** {END} The calling function should free this memory
-** by calling [sqlite3_free()].
-**
-** {F12606}
-** Extension loading must be enabled using [sqlite3_enable_load_extension()]
-** prior to calling this API or an error will be returned.
-*/
-/*IMPORT_C*/ int sqlite3_load_extension(
- sqlite3 *db, /* Load the extension into this database connection */
- const char *zFile, /* Name of the shared library containing extension */
- const char *zProc, /* Entry point. Derived from zFile if 0 */
- char **pzErrMsg /* Put error message here if not 0 */
-);
-
-/*
-** CAPI3REF: Enable Or Disable Extension Loading {F12620}
-**
-** So as not to open security holes in older applications that are
-** unprepared to deal with extension loading, and as a means of disabling
-** extension loading while evaluating user-entered SQL, the following
-** API is provided to turn the [sqlite3_load_extension()] mechanism on and
-** off. {F12622} It is off by default. {END} See ticket #1863.
-**
-** {F12621} Call the sqlite3_enable_load_extension() routine
-** with onoff==1 to turn extension loading on
-** and call it with onoff==0 to turn it back off again. {END}
-*/
-/*IMPORT_C*/ int sqlite3_enable_load_extension(sqlite3 *db, int onoff);
-
-/*
-** CAPI3REF: Make Arrangements To Automatically Load An Extension {F12640}
-**
-** {F12641} This function
-** registers an extension entry point that is automatically invoked
-** whenever a new database connection is opened using
-** [sqlite3_open()], [sqlite3_open16()], or [sqlite3_open_v2()]. {END}
-**
-** This API can be invoked at program startup in order to register
-** one or more statically linked extensions that will be available
-** to all new database connections.
-**
-** {F12642} Duplicate extensions are detected so calling this routine multiple
-** times with the same extension is harmless.
-**
-** {F12643} This routine stores a pointer to the extension in an array
-** that is obtained from sqlite_malloc(). {END} If you run a memory leak
-** checker on your program and it reports a leak because of this
-** array, then invoke [sqlite3_reset_auto_extension()] prior
-** to shutdown to free the memory.
-**
-** {F12644} Automatic extensions apply across all threads. {END}
-**
-** This interface is experimental and is subject to change or
-** removal in future releases of SQLite.
-*/
-/*IMPORT_C*/ int sqlite3_auto_extension(void *xEntryPoint);
-
-
-/*
-** CAPI3REF: Reset Automatic Extension Loading {F12660}
-**
-** {F12661} This function disables all previously registered
-** automatic extensions. {END} This
-** routine undoes the effect of all prior [sqlite3_automatic_extension()]
-** calls.
-**
-** {F12662} This call disabled automatic extensions in all threads. {END}
-**
-** This interface is experimental and is subject to change or
-** removal in future releases of SQLite.
-*/
-/*IMPORT_C*/ void sqlite3_reset_auto_extension(void);
-
-
-/*
-****** EXPERIMENTAL - subject to change without notice **************
-**
-** The interface to the virtual-table mechanism is currently considered
-** to be experimental. The interface might change in incompatible ways.
-** If this is a problem for you, do not use the interface at this time.
-**
-** When the virtual-table mechanism stablizes, we will declare the
-** interface fixed, support it indefinitely, and remove this comment.
-*/
-
-/*
-** Structures used by the virtual table interface
-*/
-typedef struct sqlite3_vtab sqlite3_vtab;
-typedef struct sqlite3_index_info sqlite3_index_info;
-typedef struct sqlite3_vtab_cursor sqlite3_vtab_cursor;
-typedef struct sqlite3_module sqlite3_module;
-
-/*
-** A module is a class of virtual tables. Each module is defined
-** by an instance of the following structure. This structure consists
-** mostly of methods for the module.
-*/
-struct sqlite3_module {
- int iVersion;
- int (*xCreate)(sqlite3*, void *pAux,
- int argc, const char *const*argv,
- sqlite3_vtab **ppVTab, char**);
- int (*xConnect)(sqlite3*, void *pAux,
- int argc, const char *const*argv,
- sqlite3_vtab **ppVTab, char**);
- int (*xBestIndex)(sqlite3_vtab *pVTab, sqlite3_index_info*);
- int (*xDisconnect)(sqlite3_vtab *pVTab);
- int (*xDestroy)(sqlite3_vtab *pVTab);
- int (*xOpen)(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor);
- int (*xClose)(sqlite3_vtab_cursor*);
- int (*xFilter)(sqlite3_vtab_cursor*, int idxNum, const char *idxStr,
- int argc, sqlite3_value **argv);
- int (*xNext)(sqlite3_vtab_cursor*);
- int (*xEof)(sqlite3_vtab_cursor*);
- int (*xColumn)(sqlite3_vtab_cursor*, sqlite3_context*, int);
- int (*xRowid)(sqlite3_vtab_cursor*, sqlite3_int64 *pRowid);
- int (*xUpdate)(sqlite3_vtab *, int, sqlite3_value **, sqlite3_int64 *);
- int (*xBegin)(sqlite3_vtab *pVTab);
- int (*xSync)(sqlite3_vtab *pVTab);
- int (*xCommit)(sqlite3_vtab *pVTab);
- int (*xRollback)(sqlite3_vtab *pVTab);
- int (*xFindFunction)(sqlite3_vtab *pVtab, int nArg, const char *zName,
- void (**pxFunc)(sqlite3_context*,int,sqlite3_value**),
- void **ppArg);
-
- int (*xRename)(sqlite3_vtab *pVtab, const char *zNew);
-};
-
-/*
-** The sqlite3_index_info structure and its substructures is used to
-** pass information into and receive the reply from the xBestIndex
-** method of an sqlite3_module. The fields under **Inputs** are the
-** inputs to xBestIndex and are read-only. xBestIndex inserts its
-** results into the **Outputs** fields.
-**
-** The aConstraint[] array records WHERE clause constraints of the
-** form:
-**
-** column OP expr
-**
-** Where OP is =, <, <=, >, or >=.
-** The particular operator is stored
-** in aConstraint[].op. The index of the column is stored in
-** aConstraint[].iColumn. aConstraint[].usable is TRUE if the
-** expr on the right-hand side can be evaluated (and thus the constraint
-** is usable) and false if it cannot.
-**
-** The optimizer automatically inverts terms of the form "expr OP column"
-** and makes other simplifications to the WHERE clause in an attempt to
-** get as many WHERE clause terms into the form shown above as possible.
-** The aConstraint[] array only reports WHERE clause terms in the correct
-** form that refer to the particular virtual table being queried.
-**
-** Information about the ORDER BY clause is stored in aOrderBy[].
-** Each term of aOrderBy records a column of the ORDER BY clause.
-**
-** The xBestIndex method must fill aConstraintUsage[] with information
-** about what parameters to pass to xFilter. If argvIndex>0 then
-** the right-hand side of the corresponding aConstraint[] is evaluated
-** and becomes the argvIndex-th entry in argv. If aConstraintUsage[].omit
-** is true, then the constraint is assumed to be fully handled by the
-** virtual table and is not checked again by SQLite.
-**
-** The idxNum and idxPtr values are recorded and passed into xFilter.
-** sqlite3_free() is used to free idxPtr if needToFreeIdxPtr is true.
-**
-** The orderByConsumed means that output from xFilter will occur in
-** the correct order to satisfy the ORDER BY clause so that no separate
-** sorting step is required.
-**
-** The estimatedCost value is an estimate of the cost of doing the
-** particular lookup. A full scan of a table with N entries should have
-** a cost of N. A binary search of a table of N entries should have a
-** cost of approximately log(N).
-*/
-struct sqlite3_index_info {
- /* Inputs */
- int nConstraint; /* Number of entries in aConstraint */
- struct sqlite3_index_constraint {
- int iColumn; /* Column on left-hand side of constraint */
- unsigned char op; /* Constraint operator */
- unsigned char usable; /* True if this constraint is usable */
- int iTermOffset; /* Used internally - xBestIndex should ignore */
- } *aConstraint; /* Table of WHERE clause constraints */
- int nOrderBy; /* Number of terms in the ORDER BY clause */
- struct sqlite3_index_orderby {
- int iColumn; /* Column number */
- unsigned char desc; /* True for DESC. False for ASC. */
- } *aOrderBy; /* The ORDER BY clause */
-
- /* Outputs */
- struct sqlite3_index_constraint_usage {
- int argvIndex; /* if >0, constraint is part of argv to xFilter */
- unsigned char omit; /* Do not code a test for this constraint */
- } *aConstraintUsage;
- int idxNum; /* Number used to identify the index */
- char *idxStr; /* String, possibly obtained from sqlite3_malloc */
- int needToFreeIdxStr; /* Free idxStr using sqlite3_free() if true */
- int orderByConsumed; /* True if output is already ordered */
- double estimatedCost; /* Estimated cost of using this index */
-};
-#define SQLITE_INDEX_CONSTRAINT_EQ 2
-#define SQLITE_INDEX_CONSTRAINT_GT 4
-#define SQLITE_INDEX_CONSTRAINT_LE 8
-#define SQLITE_INDEX_CONSTRAINT_LT 16
-#define SQLITE_INDEX_CONSTRAINT_GE 32
-#define SQLITE_INDEX_CONSTRAINT_MATCH 64
-
-/*
-** This routine is used to register a new module name with an SQLite
-** connection. Module names must be registered before creating new
-** virtual tables on the module, or before using preexisting virtual
-** tables of the module.
-*/
-/*IMPORT_C*/ int sqlite3_create_module(
- sqlite3 *db, /* SQLite connection to register module with */
- const char *zName, /* Name of the module */
- const sqlite3_module *, /* Methods for the module */
- void * /* Client data for xCreate/xConnect */
-);
-
-/*
-** This routine is identical to the sqlite3_create_module() method above,
-** except that it allows a destructor function to be specified. It is
-** even more experimental than the rest of the virtual tables API.
-*/
-/*IMPORT_C*/ int sqlite3_create_module_v2(
- sqlite3 *db, /* SQLite connection to register module with */
- const char *zName, /* Name of the module */
- const sqlite3_module *, /* Methods for the module */
- void *, /* Client data for xCreate/xConnect */
- void(*xDestroy)(void*) /* Module destructor function */
-);
-
-/*
-** Every module implementation uses a subclass of the following structure
-** to describe a particular instance of the module. Each subclass will
-** be tailored to the specific needs of the module implementation. The
-** purpose of this superclass is to define certain fields that are common
-** to all module implementations.
-**
-** Virtual tables methods can set an error message by assigning a
-** string obtained from sqlite3_mprintf() to zErrMsg. The method should
-** take care that any prior string is freed by a call to sqlite3_free()
-** prior to assigning a new string to zErrMsg. After the error message
-** is delivered up to the client application, the string will be automatically
-** freed by sqlite3_free() and the zErrMsg field will be zeroed. Note
-** that sqlite3_mprintf() and sqlite3_free() are used on the zErrMsg field
-** since virtual tables are commonly implemented in loadable extensions which
-** do not have access to sqlite3MPrintf() or sqlite3Free().
-*/
-struct sqlite3_vtab {
- const sqlite3_module *pModule; /* The module for this virtual table */
- int nRef; /* Used internally */
- char *zErrMsg; /* Error message from sqlite3_mprintf() */
- /* Virtual table implementations will typically add additional fields */
-};
-
-/* Every module implementation uses a subclass of the following structure
-** to describe cursors that point into the virtual table and are used
-** to loop through the virtual table. Cursors are created using the
-** xOpen method of the module. Each module implementation will define
-** the content of a cursor structure to suit its own needs.
-**
-** This superclass exists in order to define fields of the cursor that
-** are common to all implementations.
-*/
-struct sqlite3_vtab_cursor {
- sqlite3_vtab *pVtab; /* Virtual table of this cursor */
- /* Virtual table implementations will typically add additional fields */
-};
-
-/*
-** The xCreate and xConnect methods of a module use the following API
-** to declare the format (the names and datatypes of the columns) of
-** the virtual tables they implement.
-*/
-/*IMPORT_C*/ int sqlite3_declare_vtab(sqlite3*, const char *zCreateTable);
-
-/*
-** Virtual tables can provide alternative implementations of functions
-** using the xFindFunction method. But global versions of those functions
-** must exist in order to be overloaded.
-**
-** This API makes sure a global version of a function with a particular
-** name and number of parameters exists. If no such function exists
-** before this API is called, a new function is created. The implementation
-** of the new function always causes an exception to be thrown. So
-** the new function is not good for anything by itself. Its only
-** purpose is to be a place-holder function that can be overloaded
-** by virtual tables.
-**
-** This API should be considered part of the virtual table interface,
-** which is experimental and subject to change.
-*/
-/*IMPORT_C*/ int sqlite3_overload_function(sqlite3*, const char *zFuncName, int nArg);
-
-/*
-** The interface to the virtual-table mechanism defined above (back up
-** to a comment remarkably similar to this one) is currently considered
-** to be experimental. The interface might change in incompatible ways.
-** If this is a problem for you, do not use the interface at this time.
-**
-** When the virtual-table mechanism stabilizes, we will declare the
-** interface fixed, support it indefinitely, and remove this comment.
-**
-****** EXPERIMENTAL - subject to change without notice **************
-*/
-
-/*
-** CAPI3REF: A Handle To An Open BLOB {F17800}
-**
-** An instance of the following opaque structure is used to
-** represent an blob-handle. A blob-handle is created by
-** [sqlite3_blob_open()] and destroyed by [sqlite3_blob_close()].
-** The [sqlite3_blob_read()] and [sqlite3_blob_write()] interfaces
-** can be used to read or write small subsections of the blob.
-** The [sqlite3_blob_bytes()] interface returns the size of the
-** blob in bytes.
-*/
-typedef struct sqlite3_blob sqlite3_blob;
-
-/*
-** CAPI3REF: Open A BLOB For Incremental I/O {F17810}
-**
-** {F17811} This interfaces opens a handle to the blob located
-** in row iRow,, column zColumn, table zTable in database zDb;
-** in other words, the same blob that would be selected by:
-**
-**
-** SELECT zColumn FROM zDb.zTable WHERE rowid = iRow;
-**
{END}
-**
-** {F17812} If the flags parameter is non-zero, the blob is opened for
-** read and write access. If it is zero, the blob is opened for read
-** access. {END}
-**
-** {F17813} On success, [SQLITE_OK] is returned and the new
-** [sqlite3_blob | blob handle] is written to *ppBlob.
-** {F17814} Otherwise an error code is returned and
-** any value written to *ppBlob should not be used by the caller.
-** {F17815} This function sets the database-handle error code and message
-** accessible via [sqlite3_errcode()] and [sqlite3_errmsg()].
-** We should go through and mark all interfaces that behave this
-** way with a similar statement
-*/
-/*IMPORT_C*/ int sqlite3_blob_open(
- sqlite3*,
- const char *zDb,
- const char *zTable,
- const char *zColumn,
- sqlite3_int64 iRow,
- int flags,
- sqlite3_blob **ppBlob
-);
-
-/*
-** CAPI3REF: Close A BLOB Handle {F17830}
-**
-** Close an open [sqlite3_blob | blob handle].
-**
-** {F17831} Closing a BLOB shall cause the current transaction to commit
-** if there are no other BLOBs, no pending prepared statements, and the
-** database connection is in autocommit mode.
-** {F17832} If any writes were made to the BLOB, they might be held in cache
-** until the close operation if they will fit. {END}
-** Closing the BLOB often forces the changes
-** out to disk and so if any I/O errors occur, they will likely occur
-** at the time when the BLOB is closed. {F17833} Any errors that occur during
-** closing are reported as a non-zero return value.
-**
-** {F17839} The BLOB is closed unconditionally. Even if this routine returns
-** an error code, the BLOB is still closed.
-*/
-/*IMPORT_C*/ int sqlite3_blob_close(sqlite3_blob *);
-
-/*
-** CAPI3REF: Return The Size Of An Open BLOB {F17805}
-**
-** {F16806} Return the size in bytes of the blob accessible via the open
-** [sqlite3_blob | blob-handle] passed as an argument.
-*/
-/*IMPORT_C*/ int sqlite3_blob_bytes(sqlite3_blob *);
-
-/*
-** CAPI3REF: Read Data From A BLOB Incrementally {F17850}
-**
-** This function is used to read data from an open
-** [sqlite3_blob | blob-handle] into a caller supplied buffer.
-** {F17851} n bytes of data are copied into buffer
-** z from the open blob, starting at offset iOffset.
-**
-** {F17852} If offset iOffset is less than n bytes from the end of the blob,
-** [SQLITE_ERROR] is returned and no data is read. {F17853} If n is
-** less than zero [SQLITE_ERROR] is returned and no data is read.
-**
-** {F17854} On success, SQLITE_OK is returned. Otherwise, an
-** [SQLITE_ERROR | SQLite error code] or an
-** [SQLITE_IOERR_READ | extended error code] is returned.
-*/
-/*IMPORT_C*/ int sqlite3_blob_read(sqlite3_blob *, void *z, int n, int iOffset);
-
-/*
-** CAPI3REF: Write Data Into A BLOB Incrementally {F17870}
-**
-** This function is used to write data into an open
-** [sqlite3_blob | blob-handle] from a user supplied buffer.
-** {F17871} n bytes of data are copied from the buffer
-** pointed to by z into the open blob, starting at offset iOffset.
-**
-** {F17872} If the [sqlite3_blob | blob-handle] passed as the first argument
-** was not opened for writing (the flags parameter to [sqlite3_blob_open()]
-*** was zero), this function returns [SQLITE_READONLY].
-**
-** {F17873} This function may only modify the contents of the blob; it is
-** not possible to increase the size of a blob using this API.
-** {F17874} If offset iOffset is less than n bytes from the end of the blob,
-** [SQLITE_ERROR] is returned and no data is written. {F17875} If n is
-** less than zero [SQLITE_ERROR] is returned and no data is written.
-**
-** {F17876} On success, SQLITE_OK is returned. Otherwise, an
-** [SQLITE_ERROR | SQLite error code] or an
-** [SQLITE_IOERR_READ | extended error code] is returned.
-*/
-/*IMPORT_C*/ int sqlite3_blob_write(sqlite3_blob *, const void *z, int n, int iOffset);
-
-/*
-** CAPI3REF: Virtual File System Objects {F11200}
-**
-** A virtual filesystem (VFS) is an [sqlite3_vfs] object
-** that SQLite uses to interact
-** with the underlying operating system. Most builds come with a
-** single default VFS that is appropriate for the host computer.
-** New VFSes can be registered and existing VFSes can be unregistered.
-** The following interfaces are provided.
-**
-** {F11201} The sqlite3_vfs_find() interface returns a pointer to
-** a VFS given its name. {F11202} Names are case sensitive.
-** {F11203} Names are zero-terminated UTF-8 strings.
-** {F11204} If there is no match, a NULL
-** pointer is returned. {F11205} If zVfsName is NULL then the default
-** VFS is returned. {END}
-**
-** {F11210} New VFSes are registered with sqlite3_vfs_register().
-** {F11211} Each new VFS becomes the default VFS if the makeDflt flag is set.
-** {F11212} The same VFS can be registered multiple times without injury.
-** {F11213} To make an existing VFS into the default VFS, register it again
-** with the makeDflt flag set. {U11214} If two different VFSes with the
-** same name are registered, the behavior is undefined. {U11215} If a
-** VFS is registered with a name that is NULL or an empty string,
-** then the behavior is undefined.
-**
-** {F11220} Unregister a VFS with the sqlite3_vfs_unregister() interface.
-** {F11221} If the default VFS is unregistered, another VFS is chosen as
-** the default. The choice for the new VFS is arbitrary.
-*/
-/*IMPORT_C*/ sqlite3_vfs *sqlite3_vfs_find(const char *zVfsName);
-/*IMPORT_C*/ int sqlite3_vfs_register(sqlite3_vfs*, int makeDflt);
-/*IMPORT_C*/ int sqlite3_vfs_unregister(sqlite3_vfs*);
-
-/*
-** CAPI3REF: Mutexes {F17000}
-**
-** The SQLite core uses these routines for thread
-** synchronization. Though they are intended for internal
-** use by SQLite, code that links against SQLite is
-** permitted to use any of these routines.
-**
-** The SQLite source code contains multiple implementations
-** of these mutex routines. An appropriate implementation
-** is selected automatically at compile-time. The following
-** implementations are available in the SQLite core:
-**
-**
-** - SQLITE_MUTEX_OS2
-**
- SQLITE_MUTEX_PTHREAD
-**
- SQLITE_MUTEX_W32
-**
- SQLITE_MUTEX_NOOP
-**
-**
-** The SQLITE_MUTEX_NOOP implementation is a set of routines
-** that does no real locking and is appropriate for use in
-** a single-threaded application. The SQLITE_MUTEX_OS2,
-** SQLITE_MUTEX_PTHREAD, and SQLITE_MUTEX_W32 implementations
-** are appropriate for use on os/2, unix, and windows.
-**
-** If SQLite is compiled with the SQLITE_MUTEX_APPDEF preprocessor
-** macro defined (with "-DSQLITE_MUTEX_APPDEF=1"), then no mutex
-** implementation is included with the library. The
-** mutex interface routines defined here become external
-** references in the SQLite library for which implementations
-** must be provided by the application. This facility allows an
-** application that links against SQLite to provide its own mutex
-** implementation without having to modify the SQLite core.
-**
-** {F17011} The sqlite3_mutex_alloc() routine allocates a new
-** mutex and returns a pointer to it. {F17012} If it returns NULL
-** that means that a mutex could not be allocated. {F17013} SQLite
-** will unwind its stack and return an error. {F17014} The argument
-** to sqlite3_mutex_alloc() is one of these integer constants:
-**
-**
-** - SQLITE_MUTEX_FAST
-**
- SQLITE_MUTEX_RECURSIVE
-**
- SQLITE_MUTEX_STATIC_MASTER
-**
- SQLITE_MUTEX_STATIC_MEM
-**
- SQLITE_MUTEX_STATIC_MEM2
-**
- SQLITE_MUTEX_STATIC_PRNG
-**
- SQLITE_MUTEX_STATIC_LRU
-**
{END}
-**
-** {F17015} The first two constants cause sqlite3_mutex_alloc() to create
-** a new mutex. The new mutex is recursive when SQLITE_MUTEX_RECURSIVE
-** is used but not necessarily so when SQLITE_MUTEX_FAST is used. {END}
-** The mutex implementation does not need to make a distinction
-** between SQLITE_MUTEX_RECURSIVE and SQLITE_MUTEX_FAST if it does
-** not want to. {F17016} But SQLite will only request a recursive mutex in
-** cases where it really needs one. {END} If a faster non-recursive mutex
-** implementation is available on the host platform, the mutex subsystem
-** might return such a mutex in response to SQLITE_MUTEX_FAST.
-**
-** {F17017} The other allowed parameters to sqlite3_mutex_alloc() each return
-** a pointer to a static preexisting mutex. {END} Four static mutexes are
-** used by the current version of SQLite. Future versions of SQLite
-** may add additional static mutexes. Static mutexes are for internal
-** use by SQLite only. Applications that use SQLite mutexes should
-** use only the dynamic mutexes returned by SQLITE_MUTEX_FAST or
-** SQLITE_MUTEX_RECURSIVE.
-**
-** {F17018} Note that if one of the dynamic mutex parameters (SQLITE_MUTEX_FAST
-** or SQLITE_MUTEX_RECURSIVE) is used then sqlite3_mutex_alloc()
-** returns a different mutex on every call. {F17034} But for the static
-** mutex types, the same mutex is returned on every call that has
-** the same type number. {END}
-**
-** {F17019} The sqlite3_mutex_free() routine deallocates a previously
-** allocated dynamic mutex. {F17020} SQLite is careful to deallocate every
-** dynamic mutex that it allocates. {U17021} The dynamic mutexes must not be in
-** use when they are deallocated. {U17022} Attempting to deallocate a static
-** mutex results in undefined behavior. {F17023} SQLite never deallocates
-** a static mutex. {END}
-**
-** The sqlite3_mutex_enter() and sqlite3_mutex_try() routines attempt
-** to enter a mutex. {F17024} If another thread is already within the mutex,
-** sqlite3_mutex_enter() will block and sqlite3_mutex_try() will return
-** SQLITE_BUSY. {F17025} The sqlite3_mutex_try() interface returns SQLITE_OK
-** upon successful entry. {F17026} Mutexes created using
-** SQLITE_MUTEX_RECURSIVE can be entered multiple times by the same thread.
-** {F17027} In such cases the,
-** mutex must be exited an equal number of times before another thread
-** can enter. {U17028} If the same thread tries to enter any other
-** kind of mutex more than once, the behavior is undefined.
-** {F17029} SQLite will never exhibit
-** such behavior in its own use of mutexes. {END}
-**
-** Some systems (ex: windows95) do not the operation implemented by
-** sqlite3_mutex_try(). On those systems, sqlite3_mutex_try() will
-** always return SQLITE_BUSY. {F17030} The SQLite core only ever uses
-** sqlite3_mutex_try() as an optimization so this is acceptable behavior. {END}
-**
-** {F17031} The sqlite3_mutex_leave() routine exits a mutex that was
-** previously entered by the same thread. {U17032} The behavior
-** is undefined if the mutex is not currently entered by the
-** calling thread or is not currently allocated. {F17033} SQLite will
-** never do either. {END}
-**
-** See also: [sqlite3_mutex_held()] and [sqlite3_mutex_notheld()].
-*/
-/*IMPORT_C*/ sqlite3_mutex *sqlite3_mutex_alloc(int);
-/*IMPORT_C*/ void sqlite3_mutex_free(sqlite3_mutex*);
-/*IMPORT_C*/ void sqlite3_mutex_enter(sqlite3_mutex*);
-/*IMPORT_C*/ int sqlite3_mutex_try(sqlite3_mutex*);
-/*IMPORT_C*/ void sqlite3_mutex_leave(sqlite3_mutex*);
-
-/*
-** CAPI3REF: Mutex Verifcation Routines {F17080}
-**
-** The sqlite3_mutex_held() and sqlite3_mutex_notheld() routines
-** are intended for use inside assert() statements. {F17081} The SQLite core
-** never uses these routines except inside an assert() and applications
-** are advised to follow the lead of the core. {F17082} The core only
-** provides implementations for these routines when it is compiled
-** with the SQLITE_DEBUG flag. {U17087} External mutex implementations
-** are only required to provide these routines if SQLITE_DEBUG is
-** defined and if NDEBUG is not defined.
-**
-** {F17083} These routines should return true if the mutex in their argument
-** is held or not held, respectively, by the calling thread. {END}
-**
-** {X17084} The implementation is not required to provided versions of these
-** routines that actually work.
-** If the implementation does not provide working
-** versions of these routines, it should at least provide stubs
-** that always return true so that one does not get spurious
-** assertion failures. {END}
-**
-** {F17085} If the argument to sqlite3_mutex_held() is a NULL pointer then
-** the routine should return 1. {END} This seems counter-intuitive since
-** clearly the mutex cannot be held if it does not exist. But the
-** the reason the mutex does not exist is because the build is not
-** using mutexes. And we do not want the assert() containing the
-** call to sqlite3_mutex_held() to fail, so a non-zero return is
-** the appropriate thing to do. {F17086} The sqlite3_mutex_notheld()
-** interface should also return 1 when given a NULL pointer.
-*/
-/*IMPORT_C*/ int sqlite3_mutex_held(sqlite3_mutex*);
-/*IMPORT_C*/ int sqlite3_mutex_notheld(sqlite3_mutex*);
-
-/*
-** CAPI3REF: Mutex Types {F17001}
-**
-** {F17002} The [sqlite3_mutex_alloc()] interface takes a single argument
-** which is one of these integer constants. {END}
-*/
-#define SQLITE_MUTEX_FAST 0
-#define SQLITE_MUTEX_RECURSIVE 1
-#define SQLITE_MUTEX_STATIC_MASTER 2
-#define SQLITE_MUTEX_STATIC_MEM 3 /* sqlite3_malloc() */
-#define SQLITE_MUTEX_STATIC_MEM2 4 /* sqlite3_release_memory() */
-#define SQLITE_MUTEX_STATIC_PRNG 5 /* sqlite3_random() */
-#define SQLITE_MUTEX_STATIC_LRU 6 /* lru page list */
-
-/*
-** CAPI3REF: Low-Level Control Of Database Files {F11300}
-**
-** {F11301} The [sqlite3_file_control()] interface makes a direct call to the
-** xFileControl method for the [sqlite3_io_methods] object associated
-** with a particular database identified by the second argument. {F11302} The
-** name of the database is the name assigned to the database by the
-** ATTACH SQL command that opened the
-** database. {F11303} To control the main database file, use the name "main"
-** or a NULL pointer. {F11304} The third and fourth parameters to this routine
-** are passed directly through to the second and third parameters of
-** the xFileControl method. {F11305} The return value of the xFileControl
-** method becomes the return value of this routine.
-**
-** {F11306} If the second parameter (zDbName) does not match the name of any
-** open database file, then SQLITE_ERROR is returned. {F11307} This error
-** code is not remembered and will not be recalled by [sqlite3_errcode()]
-** or [sqlite3_errmsg()]. {U11308} The underlying xFileControl method might
-** also return SQLITE_ERROR. {U11309} There is no way to distinguish between
-** an incorrect zDbName and an SQLITE_ERROR return from the underlying
-** xFileControl method. {END}
-**
-** See also: [SQLITE_FCNTL_LOCKSTATE]
-*/
-/*IMPORT_C*/ int sqlite3_file_control(sqlite3*, const char *zDbName, int op, void*);
-
-/*IMPORT_C*/ int sqlite3_openTest(
- const char *zFilename
-);
-
-/*IMPORT_C*/ int sqlite3_bind_double_ref(sqlite3_stmt *stmt, int iCol, double *val);
-
-/*IMPORT_C*/ int sqlite3_bind_int64_ref(sqlite3_stmt *stmt, int iCol, sqlite_int64 *val);
-
-/*IMPORT_C*/ void sqlite3_column_double_ref(sqlite3_stmt *stmt, int iCol, double *val);
-
-/*IMPORT_C*/ void sqlite3_column_int64_ref(sqlite3_stmt *stmt, int iCol, sqlite_int64 *val);
-
-/*IMPORT_C*/ unsigned int sqlite3_strlen(char *ptr);
-
-/*
-** Undo the hack that converts floating point types to integer for
-** builds on processors without floating point support.
-*/
-#ifdef SQLITE_OMIT_FLOATING_POINT
-# undef double
-#endif
-
-#ifdef __cplusplus
-} /* End of the 'extern "C"' block */
-#endif
-#endif
diff -r 3c0683f9f72c -r 70749e2f572d engine/sqlite/group/sqlite.mmp
--- a/engine/sqlite/group/sqlite.mmp Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/sqlite/group/sqlite.mmp Thu Apr 29 11:55:32 2010 +0100
@@ -57,4 +57,5 @@
USERINCLUDE ..
SYSTEMINCLUDE \Epoc32\include
SYSTEMINCLUDE \Epoc32\include\libc
+SYSTEMINCLUDE ..\inc
macro OS_SYMBIAN
diff -r 3c0683f9f72c -r 70749e2f572d engine/sqlite/inc/sqlite3.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/engine/sqlite/inc/sqlite3.h Thu Apr 29 11:55:32 2010 +0100
@@ -0,0 +1,3858 @@
+/*
+** 2001 September 15
+**
+** The author disclaims copyright to this source code. In place of
+** a legal notice, here is a blessing:
+**
+** May you do good and not evil.
+** May you find forgiveness for yourself and forgive others.
+** May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This header file defines the interface that the SQLite library
+** presents to client programs. If a C-function, structure, datatype,
+** or constant definition does not appear in this file, then it is
+** not a published API of SQLite, is subject to change without
+** notice, and should not be referenced by programs that use SQLite.
+**
+** Some of the definitions that are in this file are marked as
+** "experimental". Experimental interfaces are normally new
+** features recently added to SQLite. We do not anticipate changes
+** to experimental interfaces but reserve to make minor changes if
+** experience from use "in the wild" suggest such changes are prudent.
+**
+** The official C-language API documentation for SQLite is derived
+** from comments in this file. This file is the authoritative source
+** on how SQLite interfaces are suppose to operate.
+**
+** The name of this file under configuration management is "sqlite.h.in".
+** The makefile makes some minor changes to this file (such as inserting
+** the version number) and changes its name to "sqlite3.h" as
+** part of the build process.
+**
+** @(#) $Id: sqlite3.h 1420 2009-01-13 15:06:30Z teknolog $
+*/
+#ifndef _SQLITE3_H_
+#define _SQLITE3_H_
+
+/*
+** Make sure we can call this stuff from C++.
+*/
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+//#define EXPORT_C
+
+//#define /*IMPORT_C*/
+
+/*
+** Add the ability to override 'extern'
+*/
+#ifndef SQLITE_EXTERN
+# define SQLITE_EXTERN extern
+#endif
+
+/*
+** Make sure these symbols where not defined by some previous header
+** file.
+*/
+#ifdef SQLITE_VERSION
+# undef SQLITE_VERSION
+#endif
+#ifdef SQLITE_VERSION_NUMBER
+# undef SQLITE_VERSION_NUMBER
+#endif
+
+/*
+** CAPI3REF: Compile-Time Library Version Numbers {F10010}
+**
+** {F10011} The #define in the sqlite3.h header file named
+** SQLITE_VERSION resolves to a string literal that identifies
+** the version of the SQLite library in the format "X.Y.Z", where
+** X is the major version number, Y is the minor version number and Z
+** is the release number. The X.Y.Z might be followed by "alpha" or "beta".
+** {END} For example "3.1.1beta".
+**
+** The X value is always 3 in SQLite. The X value only changes when
+** backwards compatibility is broken and we intend to never break
+** backwards compatibility. The Y value only changes when
+** there are major feature enhancements that are forwards compatible
+** but not backwards compatible. The Z value is incremented with
+** each release but resets back to 0 when Y is incremented.
+**
+** {F10014} The SQLITE_VERSION_NUMBER #define resolves to an integer
+** with the value (X*1000000 + Y*1000 + Z) where X, Y, and Z are as
+** with SQLITE_VERSION. {END} For example, for version "3.1.1beta",
+** SQLITE_VERSION_NUMBER is set to 3001001. To detect if they are using
+** version 3.1.1 or greater at compile time, programs may use the test
+** (SQLITE_VERSION_NUMBER>=3001001).
+**
+** See also: [sqlite3_libversion()] and [sqlite3_libversion_number()].
+*/
+#define SQLITE_VERSION "3.5.4"
+#define SQLITE_VERSION_NUMBER 3005004
+
+/*
+** CAPI3REF: Run-Time Library Version Numbers {F10020}
+**
+** {F10021} The sqlite3_libversion_number() interface returns an integer
+** equal to [SQLITE_VERSION_NUMBER]. {END} The value returned
+** by this routine should only be different from the header values
+** if the application is compiled using an sqlite3.h header from a
+** different version of SQLite than library. Cautious programmers might
+** include a check in their application to verify that
+** sqlite3_libversion_number() always returns the value
+** [SQLITE_VERSION_NUMBER].
+**
+** {F10022} The sqlite3_version[] string constant contains the text of the
+** [SQLITE_VERSION] string. {F10023} The sqlite3_libversion() function returns
+** a pointer to the sqlite3_version[] string constant. {END} The
+** sqlite3_libversion() function
+** is provided for DLL users who can only access functions and not
+** constants within the DLL.
+*/
+const char sqlite3_version[] = SQLITE_VERSION;
+/*IMPORT_C*/ const char *sqlite3_libversion(void);
+/*IMPORT_C*/ int sqlite3_libversion_number(void);
+
+
+void LogMessage(char *message);
+
+/*
+** CAPI3REF: Test To See If The Library Is Threadsafe {F10100}
+**
+** {F10101} The sqlite3_threadsafe() routine returns nonzero
+** if SQLite was compiled with its mutexes enabled or zero if
+** SQLite was compiled with mutexes disabled. {END} If this
+** routine returns false, then it is not safe for simultaneously
+** running threads to both invoke SQLite interfaces.
+**
+** Really all this routine does is return true if SQLite was
+** compiled with the -DSQLITE_THREADSAFE=1 option and false if
+** compiled with -DSQLITE_THREADSAFE=0. If SQLite uses an
+** application-defined mutex subsystem, malloc subsystem, collating
+** sequence, VFS, SQL function, progress callback, commit hook,
+** extension, or other accessories and these add-ons are not
+** threadsafe, then clearly the combination will not be threadsafe
+** either. Hence, this routine never reports that the library
+** is guaranteed to be threadsafe, only when it is guaranteed not
+** to be.
+*/
+/*IMPORT_C*/ int sqlite3_threadsafe(void);
+
+/*
+** CAPI3REF: Database Connection Handle {F12000}
+**
+** Each open SQLite database is represented by pointer to an instance of the
+** opaque structure named "sqlite3". It is useful to think of an sqlite3
+** pointer as an object. The [sqlite3_open()], [sqlite3_open16()], and
+** [sqlite3_open_v2()] interfaces are its constructors
+** and [sqlite3_close()] is its destructor. There are many other interfaces
+** (such as [sqlite3_prepare_v2()], [sqlite3_create_function()], and
+** [sqlite3_busy_timeout()] to name but three) that are methods on this
+** object.
+*/
+typedef struct sqlite3 sqlite3;
+
+
+/*
+** CAPI3REF: 64-Bit Integer Types {F10200}
+**
+** Because there is no cross-platform way to specify such types
+** SQLite includes typedefs for 64-bit signed and unsigned integers.
+** {F10201} The sqlite_int64 and sqlite3_int64 types specify a
+** 64-bit signed integer. {F10202} The sqlite_uint64 and
+** sqlite3_uint64 types specify a 64-bit unsigned integer. {END}
+**
+** The sqlite3_int64 and sqlite3_uint64 are the preferred type
+** definitions. The sqlite_int64 and sqlite_uint64 types are
+** supported for backwards compatibility only.
+*/
+#ifdef SQLITE_INT64_TYPE
+ typedef SQLITE_INT64_TYPE sqlite_int64;
+ typedef unsigned SQLITE_INT64_TYPE sqlite_uint64;
+#elif defined(_MSC_VER) || defined(__BORLANDC__)
+ typedef __int64 sqlite_int64;
+ typedef unsigned __int64 sqlite_uint64;
+#else
+ typedef long long int sqlite_int64;
+ typedef unsigned long long int sqlite_uint64;
+#endif
+typedef sqlite_int64 sqlite3_int64;
+typedef sqlite_uint64 sqlite3_uint64;
+
+/*
+** If compiling for a processor that lacks floating point support,
+** substitute integer for floating-point
+*/
+#ifdef SQLITE_OMIT_FLOATING_POINT
+# define double sqlite3_int64
+#endif
+
+/*
+** CAPI3REF: Closing A Database Connection {F12010}
+**
+** {F12011} The sqlite3_close() interfaces destroys an [sqlite3] object
+** allocated by a prior call to [sqlite3_open()], [sqlite3_open16()], or
+** [sqlite3_open_v2()]. {F12012} Sqlite3_close() releases all
+** memory used by the connection and closes all open files. {END}.
+**
+** {F12013} If the database connection contains
+** [sqlite3_stmt | prepared statements] that have not been finalized
+** by [sqlite3_finalize()], then sqlite3_close() returns SQLITE_BUSY
+** and leaves the connection open. {F12014} Giving sqlite3_close()
+** a NULL pointer is a harmless no-op. {END}
+**
+** {U12015} Passing this routine a database connection that has already been
+** closed results in undefined behavior. {U12016} If other interfaces that
+** reference the same database connection are pending (either in the
+** same thread or in different threads) when this routine is called,
+** then the behavior is undefined and is almost certainly undesirable.
+*/
+/*IMPORT_C*/ int sqlite3_close(sqlite3 *);
+
+/*
+** The type for a callback function.
+** This is legacy and deprecated. It is included for historical
+** compatibility and is not documented.
+*/
+typedef int (*sqlite3_callback)(void*,int,char**, char**);
+
+/*
+** CAPI3REF: One-Step Query Execution Interface {F12100}
+**
+** {F12101} The sqlite3_exec() interface evaluates zero or more
+** UTF-8 encoded, semicolon-separated SQL statements in the zero-terminated
+** string of its second argument. {F12102} The SQL
+** statements are evaluated in the context of the database connection
+** specified by in the first argument.
+** {F12103} SQL statements are prepared one by one using
+** [sqlite3_prepare()] or the equivalent, evaluated
+** using one or more calls to [sqlite3_step()], then destroyed
+** using [sqlite3_finalize()]. {F12104} The return value of
+** sqlite3_exec() is SQLITE_OK if all SQL statement run
+** successfully.
+**
+** {F12105} If one or more of the SQL statements handed to
+** sqlite3_exec() are queries, then
+** the callback function specified by the 3rd parameter is
+** invoked once for each row of the query result. {F12106}
+** If the callback returns a non-zero value then the query
+** is aborted, all subsequent SQL statements
+** are skipped and the sqlite3_exec() function returns the [SQLITE_ABORT].
+**
+** {F12107} The 4th parameter to sqlite3_exec() is an arbitrary pointer
+** that is passed through to the callback function as its first parameter.
+**
+** {F12108} The 2nd parameter to the callback function is the number of
+** columns in the query result. {F12109} The 3rd parameter to the callback
+** is an array of pointers to strings holding the values for each column
+** as extracted using [sqlite3_column_text()]. NULL values in the result
+** set result in a NULL pointer. All other value are in their UTF-8
+** string representation. {F12117}
+** The 4th parameter to the callback is an array of strings
+** obtained using [sqlite3_column_name()] and holding
+** the names of each column, also in UTF-8.
+**
+** {F12110} The callback function may be NULL, even for queries. A NULL
+** callback is not an error. It just means that no callback
+** will be invoked.
+**
+** {F12112} If an error occurs while parsing or evaluating the SQL
+** then an appropriate error message is written into memory obtained
+** from [sqlite3_malloc()] and *errmsg is made to point to that message
+** assuming errmsg is not NULL.
+** {U12113} The calling function is responsible for freeing the memory
+** using [sqlite3_free()].
+** {F12116} If [sqlite3_malloc()] fails while attempting to generate
+** the error message, *errmsg is set to NULL.
+** {F12114} If errmsg is NULL then no attempt is made to generate an
+** error message. Is the return code SQLITE_NOMEM or the original
+** error code? What happens if there are multiple errors?
+** Do we get code for the first error, or is the choice of reported
+** error arbitrary?
+**
+** {F12115} The return value is is SQLITE_OK if there are no errors and
+** some other [SQLITE_OK | return code] if there is an error.
+** The particular return value depends on the type of error. {END}
+*/
+/*IMPORT_C*/ int sqlite3_exec(
+ sqlite3*, /* An open database */
+ const char *sql, /* SQL to be evaluted */
+ int (*callback)(void*,int,char**,char**), /* Callback function */
+ void *, /* 1st argument to callback */
+ char **errmsg /* Error msg written here */
+);
+
+/*
+** CAPI3REF: Result Codes {F10210}
+** KEYWORDS: SQLITE_OK
+**
+** Many SQLite functions return an integer result code from the set shown
+** above in order to indicates success or failure.
+**
+** {F10211} The result codes shown here are the only ones returned
+** by SQLite in its default configuration. {F10212} However, the
+** [sqlite3_extended_result_codes()] API can be used to set a database
+** connectoin to return more detailed result codes. {END}
+**
+** See also: [SQLITE_IOERR_READ | extended result codes]
+**
+*/
+#define SQLITE_OK 0 /* Successful result */
+/* beginning-of-error-codes */
+#define SQLITE_ERROR 1 /* SQL error or missing database */
+#define SQLITE_INTERNAL 2 /* Internal logic error in SQLite */
+#define SQLITE_PERM 3 /* Access permission denied */
+#define SQLITE_ABORT 4 /* Callback routine requested an abort */
+#define SQLITE_BUSY 5 /* The database file is locked */
+#define SQLITE_LOCKED 6 /* A table in the database is locked */
+#define SQLITE_NOMEM 7 /* A malloc() failed */
+#define SQLITE_READONLY 8 /* Attempt to write a readonly database */
+#define SQLITE_INTERRUPT 9 /* Operation terminated by sqlite3_interrupt()*/
+#define SQLITE_IOERR 10 /* Some kind of disk I/O error occurred */
+#define SQLITE_CORRUPT 11 /* The database disk image is malformed */
+#define SQLITE_NOTFOUND 12 /* NOT USED. Table or record not found */
+#define SQLITE_FULL 13 /* Insertion failed because database is full */
+#define SQLITE_CANTOPEN 14 /* Unable to open the database file */
+#define SQLITE_PROTOCOL 15 /* NOT USED. Database lock protocol error */
+#define SQLITE_EMPTY 16 /* Database is empty */
+#define SQLITE_SCHEMA 17 /* The database schema changed */
+#define SQLITE_TOOBIG 18 /* String or BLOB exceeds size limit */
+#define SQLITE_CONSTRAINT 19 /* Abort due to constraint violation */
+#define SQLITE_MISMATCH 20 /* Data type mismatch */
+#define SQLITE_MISUSE 21 /* Library used incorrectly */
+#define SQLITE_NOLFS 22 /* Uses OS features not supported on host */
+#define SQLITE_AUTH 23 /* Authorization denied */
+#define SQLITE_FORMAT 24 /* Auxiliary database format error */
+#define SQLITE_RANGE 25 /* 2nd parameter to sqlite3_bind out of range */
+#define SQLITE_NOTADB 26 /* File opened that is not a database file */
+#define SQLITE_ROW 100 /* sqlite3_step() has another row ready */
+#define SQLITE_DONE 101 /* sqlite3_step() has finished executing */
+/* end-of-error-codes */
+
+/*
+** CAPI3REF: Extended Result Codes {F10220}
+**
+** In its default configuration, SQLite API routines return one of 26 integer
+** [SQLITE_OK | result codes]. However, experience has shown that
+** many of these result codes are too course-grained. They do not provide as
+** much information about problems as programmers might like. In an effort to
+** address this, newer versions of SQLite (version 3.3.8 and later) include
+** support for additional result codes that provide more detailed information
+** about errors. {F10221} The extended result codes are enabled or disabled
+** for each database connection using the [sqlite3_extended_result_codes()]
+** API. {END}
+**
+** Some of the available extended result codes are listed above.
+** We expect the number of extended result codes will be expand
+** over time. {U10422} Software that uses extended result codes should expect
+** to see new result codes in future releases of SQLite. {END}
+**
+** {F10223} The symbolic name for an extended result code always contains
+** a related primary result code as a prefix. {F10224} Primary result
+** codes contain a single "_" character. {F10225} Extended result codes
+** contain two or more "_" characters. {F10226} The numeric value of an
+** extended result code can be converted to its
+** corresponding primary result code by masking off the lower 8 bytes. {END}
+**
+** The SQLITE_OK result code will never be extended. It will always
+** be exactly zero.
+*/
+#define SQLITE_IOERR_READ (SQLITE_IOERR | (1<<8))
+#define SQLITE_IOERR_SHORT_READ (SQLITE_IOERR | (2<<8))
+#define SQLITE_IOERR_WRITE (SQLITE_IOERR | (3<<8))
+#define SQLITE_IOERR_FSYNC (SQLITE_IOERR | (4<<8))
+#define SQLITE_IOERR_DIR_FSYNC (SQLITE_IOERR | (5<<8))
+#define SQLITE_IOERR_TRUNCATE (SQLITE_IOERR | (6<<8))
+#define SQLITE_IOERR_FSTAT (SQLITE_IOERR | (7<<8))
+#define SQLITE_IOERR_UNLOCK (SQLITE_IOERR | (8<<8))
+#define SQLITE_IOERR_RDLOCK (SQLITE_IOERR | (9<<8))
+#define SQLITE_IOERR_DELETE (SQLITE_IOERR | (10<<8))
+#define SQLITE_IOERR_BLOCKED (SQLITE_IOERR | (11<<8))
+#define SQLITE_IOERR_NOMEM (SQLITE_IOERR | (12<<8))
+
+/*
+** CAPI3REF: Flags For File Open Operations {F10230}
+**
+** {F10231} Some combination of the these bit values are used as the
+** third argument to the [sqlite3_open_v2()] interface and
+** as fourth argument to the xOpen method of the
+** [sqlite3_vfs] object.
+*/
+#define SQLITE_OPEN_READONLY 0x00000001
+#define SQLITE_OPEN_READWRITE 0x00000002
+#define SQLITE_OPEN_CREATE 0x00000004
+#define SQLITE_OPEN_DELETEONCLOSE 0x00000008
+#define SQLITE_OPEN_EXCLUSIVE 0x00000010
+#define SQLITE_OPEN_MAIN_DB 0x00000100
+#define SQLITE_OPEN_TEMP_DB 0x00000200
+#define SQLITE_OPEN_TRANSIENT_DB 0x00000400
+#define SQLITE_OPEN_MAIN_JOURNAL 0x00000800
+#define SQLITE_OPEN_TEMP_JOURNAL 0x00001000
+#define SQLITE_OPEN_SUBJOURNAL 0x00002000
+#define SQLITE_OPEN_MASTER_JOURNAL 0x00004000
+
+/*
+** CAPI3REF: Device Characteristics {F10240}
+**
+** {F10241} The xDeviceCapabilities method of the [sqlite3_io_methods]
+** object returns an integer which is a vector of the these
+** bit values expressing I/O characteristics of the mass storage
+** device that holds the file that the [sqlite3_io_methods]
+** refers to. {END}
+**
+** {F10242} The SQLITE_IOCAP_ATOMIC property means that all writes of
+** any size are atomic. {F10243} The SQLITE_IOCAP_ATOMICnnn values
+** mean that writes of blocks that are nnn bytes in size and
+** are aligned to an address which is an integer multiple of
+** nnn are atomic. {F10244} The SQLITE_IOCAP_SAFE_APPEND value means
+** that when data is appended to a file, the data is appended
+** first then the size of the file is extended, never the other
+** way around. {F10245} The SQLITE_IOCAP_SEQUENTIAL property means that
+** information is written to disk in the same order as calls
+** to xWrite().
+*/
+#define SQLITE_IOCAP_ATOMIC 0x00000001
+#define SQLITE_IOCAP_ATOMIC512 0x00000002
+#define SQLITE_IOCAP_ATOMIC1K 0x00000004
+#define SQLITE_IOCAP_ATOMIC2K 0x00000008
+#define SQLITE_IOCAP_ATOMIC4K 0x00000010
+#define SQLITE_IOCAP_ATOMIC8K 0x00000020
+#define SQLITE_IOCAP_ATOMIC16K 0x00000040
+#define SQLITE_IOCAP_ATOMIC32K 0x00000080
+#define SQLITE_IOCAP_ATOMIC64K 0x00000100
+#define SQLITE_IOCAP_SAFE_APPEND 0x00000200
+#define SQLITE_IOCAP_SEQUENTIAL 0x00000400
+
+/*
+** CAPI3REF: File Locking Levels {F10250}
+**
+** {F10251} SQLite uses one of the following integer values as the second
+** argument to calls it makes to the xLock() and xUnlock() methods
+** of an [sqlite3_io_methods] object. {END}
+*/
+#define SQLITE_LOCK_NONE 0
+#define SQLITE_LOCK_SHARED 1
+#define SQLITE_LOCK_RESERVED 2
+#define SQLITE_LOCK_PENDING 3
+#define SQLITE_LOCK_EXCLUSIVE 4
+
+/*
+** CAPI3REF: Synchronization Type Flags {F10260}
+**
+** {F10261} When SQLite invokes the xSync() method of an
+** [sqlite3_io_methods] object it uses a combination of the
+** these integer values as the second argument.
+**
+** {F10262} When the SQLITE_SYNC_DATAONLY flag is used, it means that the
+** sync operation only needs to flush data to mass storage. Inode
+** information need not be flushed. {F10263} The SQLITE_SYNC_NORMAL means
+** to use normal fsync() semantics. {F10264} The SQLITE_SYNC_FULL flag means
+** to use Mac OS-X style fullsync instead of fsync().
+*/
+#define SQLITE_SYNC_NORMAL 0x00002
+#define SQLITE_SYNC_FULL 0x00003
+#define SQLITE_SYNC_DATAONLY 0x00010
+
+
+/*
+** CAPI3REF: OS Interface Open File Handle {F11110}
+**
+** An [sqlite3_file] object represents an open file in the OS
+** interface layer. Individual OS interface implementations will
+** want to subclass this object by appending additional fields
+** for their own use. The pMethods entry is a pointer to an
+** [sqlite3_io_methods] object that defines methods for performing
+** I/O operations on the open file.
+*/
+typedef struct sqlite3_file sqlite3_file;
+struct sqlite3_file {
+ int isOpen;
+ //const struct sqlite3_io_methods *pMethods; /* Methods for an open file */
+};
+
+/*
+** CAPI3REF: OS Interface File Virtual Methods Object {F11120}
+**
+** Every file opened by the [sqlite3_vfs] xOpen method contains a pointer to
+** an instance of the this object. This object defines the
+** methods used to perform various operations against the open file.
+**
+** The flags argument to xSync may be one of [SQLITE_SYNC_NORMAL] or
+** [SQLITE_SYNC_FULL]. The first choice is the normal fsync().
+* The second choice is an
+** OS-X style fullsync. The SQLITE_SYNC_DATA flag may be ORed in to
+** indicate that only the data of the file and not its inode needs to be
+** synced.
+**
+** The integer values to xLock() and xUnlock() are one of
+**
+** - [SQLITE_LOCK_NONE],
+**
- [SQLITE_LOCK_SHARED],
+**
- [SQLITE_LOCK_RESERVED],
+**
- [SQLITE_LOCK_PENDING], or
+**
- [SQLITE_LOCK_EXCLUSIVE].
+**
+** xLock() increases the lock. xUnlock() decreases the lock.
+** The xCheckReservedLock() method looks
+** to see if any database connection, either in this
+** process or in some other process, is holding an RESERVED,
+** PENDING, or EXCLUSIVE lock on the file. It returns true
+** if such a lock exists and false if not.
+**
+** The xFileControl() method is a generic interface that allows custom
+** VFS implementations to directly control an open file using the
+** [sqlite3_file_control()] interface. The second "op" argument
+** is an integer opcode. The third
+** argument is a generic pointer which is intended to be a pointer
+** to a structure that may contain arguments or space in which to
+** write return values. Potential uses for xFileControl() might be
+** functions to enable blocking locks with timeouts, to change the
+** locking strategy (for example to use dot-file locks), to inquire
+** about the status of a lock, or to break stale locks. The SQLite
+** core reserves opcodes less than 100 for its own use.
+** A [SQLITE_FCNTL_LOCKSTATE | list of opcodes] less than 100 is available.
+** Applications that define a custom xFileControl method should use opcodes
+** greater than 100 to avoid conflicts.
+**
+** The xSectorSize() method returns the sector size of the
+** device that underlies the file. The sector size is the
+** minimum write that can be performed without disturbing
+** other bytes in the file. The xDeviceCharacteristics()
+** method returns a bit vector describing behaviors of the
+** underlying device:
+**
+**
+** - [SQLITE_IOCAP_ATOMIC]
+**
- [SQLITE_IOCAP_ATOMIC512]
+**
- [SQLITE_IOCAP_ATOMIC1K]
+**
- [SQLITE_IOCAP_ATOMIC2K]
+**
- [SQLITE_IOCAP_ATOMIC4K]
+**
- [SQLITE_IOCAP_ATOMIC8K]
+**
- [SQLITE_IOCAP_ATOMIC16K]
+**
- [SQLITE_IOCAP_ATOMIC32K]
+**
- [SQLITE_IOCAP_ATOMIC64K]
+**
- [SQLITE_IOCAP_SAFE_APPEND]
+**
- [SQLITE_IOCAP_SEQUENTIAL]
+**
+**
+** The SQLITE_IOCAP_ATOMIC property means that all writes of
+** any size are atomic. The SQLITE_IOCAP_ATOMICnnn values
+** mean that writes of blocks that are nnn bytes in size and
+** are aligned to an address which is an integer multiple of
+** nnn are atomic. The SQLITE_IOCAP_SAFE_APPEND value means
+** that when data is appended to a file, the data is appended
+** first then the size of the file is extended, never the other
+** way around. The SQLITE_IOCAP_SEQUENTIAL property means that
+** information is written to disk in the same order as calls
+** to xWrite().
+*/
+/*typedef struct sqlite3_io_methods sqlite3_io_methods;
+struct sqlite3_io_methods {
+ int iVersion;
+ int (*xClose)(sqlite3_file*);
+ int (*xRead)(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst);
+ int (*xWrite)(sqlite3_file*, const void*, int iAmt, sqlite3_int64 iOfst);
+ int (*xTruncate)(sqlite3_file*, sqlite3_int64 size);
+ int (*xSync)(sqlite3_file*, int flags);
+ int (*xFileSize)(sqlite3_file*, sqlite3_int64 *pSize);
+ int (*xLock)(sqlite3_file*, int);
+ int (*xUnlock)(sqlite3_file*, int);
+ int (*xCheckReservedLock)(sqlite3_file*);
+ int (*xFileControl)(sqlite3_file*, int op, void *pArg);
+ int (*xSectorSize)(sqlite3_file*);
+ int (*xDeviceCharacteristics)(sqlite3_file*);
+};*/
+
+/*
+** CAPI3REF: Standard File Control Opcodes {F11310}
+**
+** These integer constants are opcodes for the xFileControl method
+** of the [sqlite3_io_methods] object and to the [sqlite3_file_control()]
+** interface.
+**
+** {F11311} The [SQLITE_FCNTL_LOCKSTATE] opcode is used for debugging. This
+** opcode cases the xFileControl method to write the current state of
+** the lock (one of [SQLITE_LOCK_NONE], [SQLITE_LOCK_SHARED],
+** [SQLITE_LOCK_RESERVED], [SQLITE_LOCK_PENDING], or [SQLITE_LOCK_EXCLUSIVE])
+** into an integer that the pArg argument points to. {F11312} This capability
+** is used during testing and only needs to be supported when SQLITE_TEST
+** is defined.
+*/
+#define SQLITE_FCNTL_LOCKSTATE 1
+
+/*
+** CAPI3REF: Mutex Handle {F17110}
+**
+** The mutex module within SQLite defines [sqlite3_mutex] to be an
+** abstract type for a mutex object. {F17111} The SQLite core never looks
+** at the internal representation of an [sqlite3_mutex]. {END} It only
+** deals with pointers to the [sqlite3_mutex] object.
+**
+** Mutexes are created using [sqlite3_mutex_alloc()].
+*/
+typedef struct sqlite3_mutex sqlite3_mutex;
+
+/*
+** CAPI3REF: OS Interface Object {F11140}
+**
+** An instance of this object defines the interface between the
+** SQLite core and the underlying operating system. The "vfs"
+** in the name of the object stands for "virtual file system".
+**
+** The iVersion field is initially 1 but may be larger for future
+** versions of SQLite. Additional fields may be appended to this
+** object when the iVersion value is increased.
+**
+** The szOsFile field is the size of the subclassed [sqlite3_file]
+** structure used by this VFS. mxPathname is the maximum length of
+** a pathname in this VFS.
+**
+** Registered vfs modules are kept on a linked list formed by
+** the pNext pointer. The [sqlite3_vfs_register()]
+** and [sqlite3_vfs_unregister()] interfaces manage this list
+** in a thread-safe way. The [sqlite3_vfs_find()] interface
+** searches the list.
+**
+** The pNext field is the only fields in the sqlite3_vfs
+** structure that SQLite will ever modify. SQLite will only access
+** or modify this field while holding a particular static mutex.
+** The application should never modify anything within the sqlite3_vfs
+** object once the object has been registered.
+**
+** The zName field holds the name of the VFS module. The name must
+** be unique across all VFS modules.
+**
+** {F11141} SQLite will guarantee that the zFilename string passed to
+** xOpen() is a full pathname as generated by xFullPathname() and
+** that the string will be valid and unchanged until xClose() is
+** called. {END} So the [sqlite3_file] can store a pointer to the
+** filename if it needs to remember the filename for some reason.
+**
+** {F11142} The flags argument to xOpen() includes all bits set in
+** the flags argument to [sqlite3_open_v2()]. Or if [sqlite3_open()]
+** or [sqlite3_open16()] is used, then flags includes at least
+** [SQLITE_OPEN_READWRITE] | [SQLITE_OPEN_CREATE]. {END}
+** If xOpen() opens a file read-only then it sets *pOutFlags to
+** include [SQLITE_OPEN_READONLY]. Other bits in *pOutFlags may be
+** set.
+**
+** {F11143} SQLite will also add one of the following flags to the xOpen()
+** call, depending on the object being opened:
+**
+**
+** - [SQLITE_OPEN_MAIN_DB]
+**
- [SQLITE_OPEN_MAIN_JOURNAL]
+**
- [SQLITE_OPEN_TEMP_DB]
+**
- [SQLITE_OPEN_TEMP_JOURNAL]
+**
- [SQLITE_OPEN_TRANSIENT_DB]
+**
- [SQLITE_OPEN_SUBJOURNAL]
+**
- [SQLITE_OPEN_MASTER_JOURNAL]
+**
{END}
+**
+** The file I/O implementation can use the object type flags to
+** changes the way it deals with files. For example, an application
+** that does not care about crash recovery or rollback, might make
+** the open of a journal file a no-op. Writes to this journal are
+** also a no-op. Any attempt to read the journal return SQLITE_IOERR.
+** Or the implementation might recognize the a database file will
+** be doing page-aligned sector reads and writes in a random order
+** and set up its I/O subsystem accordingly.
+**
+** {F11144} SQLite might also add one of the following flags to the xOpen
+** method:
+**
+**
+** - [SQLITE_OPEN_DELETEONCLOSE]
+**
- [SQLITE_OPEN_EXCLUSIVE]
+**
+**
+** {F11145} The [SQLITE_OPEN_DELETEONCLOSE] flag means the file should be
+** deleted when it is closed. {F11146} The [SQLITE_OPEN_DELETEONCLOSE]
+** will be set for TEMP databases, journals and for subjournals.
+** {F11147} The [SQLITE_OPEN_EXCLUSIVE] flag means the file should be opened
+** for exclusive access. This flag is set for all files except
+** for the main database file. {END}
+**
+** {F11148} At least szOsFile bytes of memory is allocated by SQLite
+** to hold the [sqlite3_file] structure passed as the third
+** argument to xOpen. {END} The xOpen method does not have to
+** allocate the structure; it should just fill it in.
+**
+** {F11149} The flags argument to xAccess() may be [SQLITE_ACCESS_EXISTS]
+** to test for the existance of a file,
+** or [SQLITE_ACCESS_READWRITE] to test to see
+** if a file is readable and writable, or [SQLITE_ACCESS_READ]
+** to test to see if a file is at least readable. {END} The file can be a
+** directory.
+**
+** {F11150} SQLite will always allocate at least mxPathname+1 byte for
+** the output buffers for xGetTempname and xFullPathname. {F11151} The exact
+** size of the output buffer is also passed as a parameter to both
+** methods. {END} If the output buffer is not large enough, SQLITE_CANTOPEN
+** should be returned. As this is handled as a fatal error by SQLite,
+** vfs implementations should endeavor to prevent this by setting
+** mxPathname to a sufficiently large value.
+**
+** The xRandomness(), xSleep(), and xCurrentTime() interfaces
+** are not strictly a part of the filesystem, but they are
+** included in the VFS structure for completeness.
+** The xRandomness() function attempts to return nBytes bytes
+** of good-quality randomness into zOut. The return value is
+** the actual number of bytes of randomness obtained. The
+** xSleep() method cause the calling thread to sleep for at
+** least the number of microseconds given. The xCurrentTime()
+** method returns a Julian Day Number for the current date and
+** time.
+*/
+typedef struct sqlite3_vfs sqlite3_vfs;
+struct sqlite3_vfs {
+ int iVersion; /* Structure version number */
+ int szOsFile; /* Size of subclassed sqlite3_file */
+ int mxPathname; /* Maximum file pathname length */
+ sqlite3_vfs *pNext; /* Next registered VFS */
+ const char *zName; /* Name of this virtual file system */
+ void *pAppData; /* Pointer to application-specific data */
+/* int (*xOpen)(sqlite3_vfs*, const char *zName, sqlite3_file*,
+ int flags, int *pOutFlags);
+ int (*xDelete)(sqlite3_vfs*, const char *zName, int syncDir);
+ int (*xAccess)(sqlite3_vfs*, const char *zName, int flags);
+ int (*xGetTempname)(sqlite3_vfs*, int nOut, char *zOut);
+ int (*xFullPathname)(sqlite3_vfs*, const char *zName, int nOut, char *zOut);
+ void *(*xDlOpen)(sqlite3_vfs*, const char *zFilename);
+ void (*xDlError)(sqlite3_vfs*, int nByte, char *zErrMsg);
+ void *(*xDlSym)(sqlite3_vfs*,void*, const char *zSymbol);
+ void (*xDlClose)(sqlite3_vfs*, void*);
+ int (*xRandomness)(sqlite3_vfs*, int nByte, char *zOut);
+ int (*xSleep)(sqlite3_vfs*, int microseconds);
+ int (*xCurrentTime)(sqlite3_vfs*, double*);*/
+ /* New fields may be appended in figure versions. The iVersion
+ ** value will increment whenever this happens. */
+};
+
+/*
+** CAPI3REF: Flags for the xAccess VFS method {F11190}
+**
+** {F11191} These integer constants can be used as the third parameter to
+** the xAccess method of an [sqlite3_vfs] object. {END} They determine
+** the kind of what kind of permissions the xAccess method is
+** looking for. {F11192} With SQLITE_ACCESS_EXISTS, the xAccess method
+** simply checks to see if the file exists. {F11193} With
+** SQLITE_ACCESS_READWRITE, the xAccess method checks to see
+** if the file is both readable and writable. {F11194} With
+** SQLITE_ACCESS_READ the xAccess method
+** checks to see if the file is readable.
+*/
+#define SQLITE_ACCESS_EXISTS 0
+#define SQLITE_ACCESS_READWRITE 1
+#define SQLITE_ACCESS_READ 2
+
+/*
+** CAPI3REF: Enable Or Disable Extended Result Codes {F12200}
+**
+** {F12201} The sqlite3_extended_result_codes() routine enables or disables the
+** [SQLITE_IOERR_READ | extended result codes] feature on a database
+** connection if its 2nd parameter is
+** non-zero or zero, respectively. {F12202}
+** By default, SQLite API routines return one of only 26 integer
+** [SQLITE_OK | result codes]. {F12203} When extended result codes
+** are enabled by this routine, the repetoire of result codes can be
+** much larger and can (hopefully) provide more detailed information
+** about the cause of an error.
+**
+** {F12204} The second argument is a boolean value that turns extended result
+** codes on and off. {F12205} Extended result codes are off by default for
+** backwards compatibility with older versions of SQLite.
+*/
+/*IMPORT_C*/ int sqlite3_extended_result_codes(sqlite3*, int onoff);
+
+/*
+** CAPI3REF: Last Insert Rowid {F12220}
+**
+** {F12221} Each entry in an SQLite table has a unique 64-bit signed
+** integer key called the "rowid". {F12222} The rowid is always available
+** as an undeclared column named ROWID, OID, or _ROWID_ as long as those
+** names are not also used by explicitly declared columns. {F12223} If
+** the table has a column of type INTEGER PRIMARY KEY then that column
+** is another an alias for the rowid.
+**
+** {F12224} This routine returns the rowid of the most recent
+** successful INSERT into the database from the database connection
+** shown in the first argument. {F12225} If no successful inserts
+** have ever occurred on this database connection, zero is returned.
+**
+** {F12226} If an INSERT occurs within a trigger, then the rowid of the
+** inserted row is returned by this routine as long as the trigger
+** is running. {F12227} But once the trigger terminates, the value returned
+** by this routine reverts to the last value inserted before the
+** trigger fired.
+**
+** {F12228} An INSERT that fails due to a constraint violation is not a
+** successful insert and does not change the value returned by this
+** routine. {F12229} Thus INSERT OR FAIL, INSERT OR IGNORE, INSERT OR ROLLBACK,
+** and INSERT OR ABORT make no changes to the return value of this
+** routine when their insertion fails. {F12231} When INSERT OR REPLACE
+** encounters a constraint violation, it does not fail. The
+** INSERT continues to completion after deleting rows that caused
+** the constraint problem so INSERT OR REPLACE will always change
+** the return value of this interface.
+**
+** {UF12232} If another thread does a new insert on the same database connection
+** while this routine is running and thus changes the last insert rowid,
+** then the return value of this routine is undefined.
+*/
+/*IMPORT_C*/ sqlite3_int64 sqlite3_last_insert_rowid(sqlite3*);
+
+/*
+** CAPI3REF: Count The Number Of Rows Modified {F12240}
+**
+** {F12241} This function returns the number of database rows that were changed
+** or inserted or deleted by the most recently completed SQL statement
+** on the connection specified by the first parameter. {F12242} Only
+** changes that are directly specified by the INSERT, UPDATE, or
+** DELETE statement are counted. Auxiliary changes caused by
+** triggers are not counted. {F12243} Use the [sqlite3_total_changes()] function
+** to find the total number of changes including changes caused by triggers.
+**
+** {F12244} Within the body of a trigger, the sqlite3_changes() interface
+** can be called to find the number of
+** changes in the most recently completed INSERT, UPDATE, or DELETE
+** statement within the body of the same trigger.
+**
+** {F12245} All changes are counted, even if they are later undone by a
+** ROLLBACK or ABORT. {F12246} Except, changes associated with creating and
+** dropping tables are not counted.
+**
+** {F12247} If a callback invokes [sqlite3_exec()] or [sqlite3_step()]
+** recursively, then the changes in the inner, recursive call are
+** counted together with the changes in the outer call.
+**
+** {F12248} SQLite implements the command "DELETE FROM table" without
+** a WHERE clause by dropping and recreating the table. (This is much
+** faster than going through and deleting individual elements from the
+** table.) Because of this optimization, the change count for
+** "DELETE FROM table" will be zero regardless of the number of elements
+** that were originally in the table. {F12251} To get an accurate count
+** of the number of rows deleted, use
+** "DELETE FROM table WHERE 1" instead.
+**
+** {UF12252} If another thread makes changes on the same database connection
+** while this routine is running then the return value of this routine
+** is undefined.
+*/
+/*IMPORT_C*/ int sqlite3_changes(sqlite3*);
+
+/*
+** CAPI3REF: Total Number Of Rows Modified {F12260}
+***
+** {F12261} This function returns the number of database rows that have been
+** modified by INSERT, UPDATE or DELETE statements since the database handle
+** was opened. {F12262} The count includes UPDATE, INSERT and DELETE
+** statements executed as part of trigger programs. {F12263} All changes
+** are counted as soon as the statement that makes them is completed
+** (when the statement handle is passed to [sqlite3_reset()] or
+** [sqlite3_finalize()]). {END}
+**
+** See also the [sqlite3_change()] interface.
+**
+** {F12265} SQLite implements the command "DELETE FROM table" without
+** a WHERE clause by dropping and recreating the table. (This is much
+** faster than going
+** through and deleting individual elements form the table.) Because of
+** this optimization, the change count for "DELETE FROM table" will be
+** zero regardless of the number of elements that were originally in the
+** table. To get an accurate count of the number of rows deleted, use
+** "DELETE FROM table WHERE 1" instead.
+**
+** {U12264} If another thread makes changes on the same database connection
+** while this routine is running then the return value of this routine
+** is undefined. {END}
+*/
+/*IMPORT_C*/ int sqlite3_total_changes(sqlite3*);
+
+/*
+** CAPI3REF: Interrupt A Long-Running Query {F12270}
+**
+** {F12271} This function causes any pending database operation to abort and
+** return at its earliest opportunity. {END} This routine is typically
+** called in response to a user action such as pressing "Cancel"
+** or Ctrl-C where the user wants a long query operation to halt
+** immediately.
+**
+** {F12272} It is safe to call this routine from a thread different from the
+** thread that is currently running the database operation. {U12273} But it
+** is not safe to call this routine with a database connection that
+** is closed or might close before sqlite3_interrupt() returns.
+**
+** If an SQL is very nearly finished at the time when sqlite3_interrupt()
+** is called, then it might not have an opportunity to be interrupted.
+** It might continue to completion.
+** {F12274} The SQL operation that is interrupted will return
+** [SQLITE_INTERRUPT]. {F12275} If the interrupted SQL operation is an
+** INSERT, UPDATE, or DELETE that is inside an explicit transaction,
+** then the entire transaction will be rolled back automatically.
+** {F12276} A call to sqlite3_interrupt() has no effect on SQL statements
+** that are started after sqlite3_interrupt() returns.
+*/
+/*IMPORT_C*/ void sqlite3_interrupt(sqlite3*);
+
+/*
+** CAPI3REF: Determine If An SQL Statement Is Complete {F10510}
+**
+** These routines are useful for command-line input to determine if the
+** currently entered text seems to form complete a SQL statement or
+** if additional input is needed before sending the text into
+** SQLite for parsing. These routines return true if the input string
+** appears to be a complete SQL statement. A statement is judged to be
+** complete if it ends with a semicolon and is not a fragment of a
+** CREATE TRIGGER statement. These routines do not parse the SQL and
+** so will not detect syntactically incorrect SQL.
+**
+** {F10511} These functions return true if the given input string
+** ends with a semicolon optionally followed by whitespace or
+** comments. {F10512} For sqlite3_complete(),
+** the parameter must be a zero-terminated UTF-8 string. {F10513} For
+** sqlite3_complete16(), a zero-terminated machine byte order UTF-16 string
+** is required. {F10514} These routines return false if the terminal
+** semicolon is within a comment, a string literal or a quoted identifier
+** (in other words if the final semicolon is not really a separate token
+** but part of a larger token) or if the final semicolon is
+** in between the BEGIN and END keywords of a CREATE TRIGGER statement.
+** {END}
+*/
+/*IMPORT_C*/ int sqlite3_complete(const char *sql);
+/*IMPORT_C*/ int sqlite3_complete16(const void *sql);
+
+/*
+** CAPI3REF: Register A Callback To Handle SQLITE_BUSY Errors {F12310}
+**
+** {F12311} This routine identifies a callback function that might be
+** invoked whenever an attempt is made to open a database table
+** that another thread or process has locked.
+** {F12312} If the busy callback is NULL, then [SQLITE_BUSY]
+** or [SQLITE_IOERR_BLOCKED]
+** is returned immediately upon encountering the lock.
+** {F12313} If the busy callback is not NULL, then the
+** callback will be invoked with two arguments. {F12314} The
+** first argument to the handler is a copy of the void* pointer which
+** is the third argument to this routine. {F12315} The second argument to
+** the handler is the number of times that the busy handler has
+** been invoked for this locking event. {F12316} If the
+** busy callback returns 0, then no additional attempts are made to
+** access the database and [SQLITE_BUSY] or [SQLITE_IOERR_BLOCKED] is returned.
+** {F12317} If the callback returns non-zero, then another attempt
+** is made to open the database for reading and the cycle repeats.
+**
+** The presence of a busy handler does not guarantee that
+** it will be invoked when there is lock contention. {F12319}
+** If SQLite determines that invoking the busy handler could result in
+** a deadlock, it will go ahead and return [SQLITE_BUSY] or
+** [SQLITE_IOERR_BLOCKED] instead of invoking the
+** busy handler. {END}
+** Consider a scenario where one process is holding a read lock that
+** it is trying to promote to a reserved lock and
+** a second process is holding a reserved lock that it is trying
+** to promote to an exclusive lock. The first process cannot proceed
+** because it is blocked by the second and the second process cannot
+** proceed because it is blocked by the first. If both processes
+** invoke the busy handlers, neither will make any progress. Therefore,
+** SQLite returns [SQLITE_BUSY] for the first process, hoping that this
+** will induce the first process to release its read lock and allow
+** the second process to proceed.
+**
+** {F12321} The default busy callback is NULL. {END}
+**
+** {F12322} The [SQLITE_BUSY] error is converted to [SQLITE_IOERR_BLOCKED]
+** when SQLite is in the middle of a large transaction where all the
+** changes will not fit into the in-memory cache. {F12323} SQLite will
+** already hold a RESERVED lock on the database file, but it needs
+** to promote this lock to EXCLUSIVE so that it can spill cache
+** pages into the database file without harm to concurrent
+** readers. {F12324} If it is unable to promote the lock, then the in-memory
+** cache will be left in an inconsistent state and so the error
+** code is promoted from the relatively benign [SQLITE_BUSY] to
+** the more severe [SQLITE_IOERR_BLOCKED]. {F12325} This error code promotion
+** forces an automatic rollback of the changes. {END} See the
+**
+** CorruptionFollowingBusyError wiki page for a discussion of why
+** this is important.
+**
+** {F12326} Sqlite is re-entrant, so the busy handler may start a new
+** query. {END} (It is not clear why anyone would every want to do this,
+** but it is allowed, in theory.) {U12327} But the busy handler may not
+** close the database. Closing the database from a busy handler will delete
+** data structures out from under the executing query and will
+** probably result in a segmentation fault or other runtime error. {END}
+**
+** {F12328} There can only be a single busy handler defined for each database
+** connection. Setting a new busy handler clears any previous one.
+** {F12329} Note that calling [sqlite3_busy_timeout()] will also set or clear
+** the busy handler.
+**
+** {F12331} When operating in [sqlite3_enable_shared_cache | shared cache mode],
+** only a single busy handler can be defined for each database file.
+** So if two database connections share a single cache, then changing
+** the busy handler on one connection will also change the busy
+** handler in the other connection. {F12332} The busy handler is invoked
+** in the thread that was running when the lock contention occurs.
+*/
+/*IMPORT_C*/ int sqlite3_busy_handler(sqlite3*, int(*)(void*,int), void*);
+
+/*
+** CAPI3REF: Set A Busy Timeout {F12340}
+**
+** {F12341} This routine sets a [sqlite3_busy_handler | busy handler]
+** that sleeps for a while when a
+** table is locked. {F12342} The handler will sleep multiple times until
+** at least "ms" milliseconds of sleeping have been done. {F12343} After
+** "ms" milliseconds of sleeping, the handler returns 0 which
+** causes [sqlite3_step()] to return [SQLITE_BUSY] or [SQLITE_IOERR_BLOCKED].
+**
+** {F12344} Calling this routine with an argument less than or equal to zero
+** turns off all busy handlers.
+**
+** {F12345} There can only be a single busy handler for a particular database
+** connection. If another busy handler was defined
+** (using [sqlite3_busy_handler()]) prior to calling
+** this routine, that other busy handler is cleared.
+*/
+/*IMPORT_C*/ int sqlite3_busy_timeout(sqlite3*, int ms);
+
+/*
+** CAPI3REF: Convenience Routines For Running Queries {F12370}
+**
+** This next routine is a convenience wrapper around [sqlite3_exec()].
+** {F12371} Instead of invoking a user-supplied callback for each row of the
+** result, this routine remembers each row of the result in memory
+** obtained from [sqlite3_malloc()], then returns all of the result after the
+** query has finished. {F12372}
+**
+** As an example, suppose the query result where this table:
+**
+**
+** Name | Age
+** -----------------------
+** Alice | 43
+** Bob | 28
+** Cindy | 21
+**
+**
+** If the 3rd argument were &azResult then after the function returns
+** azResult will contain the following data:
+**
+**
+** azResult[0] = "Name";
+** azResult[1] = "Age";
+** azResult[2] = "Alice";
+** azResult[3] = "43";
+** azResult[4] = "Bob";
+** azResult[5] = "28";
+** azResult[6] = "Cindy";
+** azResult[7] = "21";
+**
+**
+** Notice that there is an extra row of data containing the column
+** headers. But the *nrow return value is still 3. *ncolumn is
+** set to 2. In general, the number of values inserted into azResult
+** will be ((*nrow) + 1)*(*ncolumn).
+**
+** {U12374} After the calling function has finished using the result, it should
+** pass the result data pointer to sqlite3_free_table() in order to
+** release the memory that was malloc-ed. Because of the way the
+** [sqlite3_malloc()] happens, the calling function must not try to call
+** [sqlite3_free()] directly. Only [sqlite3_free_table()] is able to release
+** the memory properly and safely. {END}
+**
+** {F12373} The return value of this routine is the same as
+** from [sqlite3_exec()].
+*/
+/*IMPORT_C*/ int sqlite3_get_table(
+ sqlite3*, /* An open database */
+ const char *sql, /* SQL to be executed */
+ char ***resultp, /* Result written to a char *[] that this points to */
+ int *nrow, /* Number of result rows written here */
+ int *ncolumn, /* Number of result columns written here */
+ char **errmsg /* Error msg written here */
+);
+/*IMPORT_C*/ void sqlite3_free_table(char **result);
+
+/*
+** CAPI3REF: Formatted String Printing Functions {F17400}
+**
+** These routines are workalikes of the "printf()" family of functions
+** from the standard C library.
+**
+** {F17401} The sqlite3_mprintf() and sqlite3_vmprintf() routines write their
+** results into memory obtained from [sqlite3_malloc()].
+** {U17402} The strings returned by these two routines should be
+** released by [sqlite3_free()]. {F17403} Both routines return a
+** NULL pointer if [sqlite3_malloc()] is unable to allocate enough
+** memory to hold the resulting string.
+**
+** {F17404} In sqlite3_snprintf() routine is similar to "snprintf()" from
+** the standard C library. The result is written into the
+** buffer supplied as the second parameter whose size is given by
+** the first parameter. {END} Note that the order of the
+** first two parameters is reversed from snprintf(). This is an
+** historical accident that cannot be fixed without breaking
+** backwards compatibility. {F17405} Note also that sqlite3_snprintf()
+** returns a pointer to its buffer instead of the number of
+** characters actually written into the buffer. {END} We admit that
+** the number of characters written would be a more useful return
+** value but we cannot change the implementation of sqlite3_snprintf()
+** now without breaking compatibility.
+**
+** {F17406} As long as the buffer size is greater than zero, sqlite3_snprintf()
+** guarantees that the buffer is always zero-terminated. {F17407} The first
+** parameter "n" is the total size of the buffer, including space for
+** the zero terminator. {END} So the longest string that can be completely
+** written will be n-1 characters.
+**
+** These routines all implement some additional formatting
+** options that are useful for constructing SQL statements.
+** All of the usual printf formatting options apply. In addition, there
+** is are "%q", "%Q", and "%z" options.
+**
+** {F17410} The %q option works like %s in that it substitutes a null-terminated
+** string from the argument list. But %q also doubles every '\'' character.
+** %q is designed for use inside a string literal. {END} By doubling each '\''
+** character it escapes that character and allows it to be inserted into
+** the string.
+**
+** For example, so some string variable contains text as follows:
+**
+**
+** char *zText = "It's a happy day!";
+**
+**
+** One can use this text in an SQL statement as follows:
+**
+**
+** char *zSQL = sqlite3_mprintf("INSERT INTO table VALUES('%q')", zText);
+** sqlite3_exec(db, zSQL, 0, 0, 0);
+** sqlite3_free(zSQL);
+**
+**
+** Because the %q format string is used, the '\'' character in zText
+** is escaped and the SQL generated is as follows:
+**
+**
+** INSERT INTO table1 VALUES('It''s a happy day!')
+**
+**
+** This is correct. Had we used %s instead of %q, the generated SQL
+** would have looked like this:
+**
+**
+** INSERT INTO table1 VALUES('It's a happy day!');
+**
+**
+** This second example is an SQL syntax error. As a general rule you
+** should always use %q instead of %s when inserting text into a string
+** literal.
+**
+** {F17411} The %Q option works like %q except it also adds single quotes around
+** the outside of the total string. Or if the parameter in the argument
+** list is a NULL pointer, %Q substitutes the text "NULL" (without single
+** quotes) in place of the %Q option. {END} So, for example, one could say:
+**
+**
+** char *zSQL = sqlite3_mprintf("INSERT INTO table VALUES(%Q)", zText);
+** sqlite3_exec(db, zSQL, 0, 0, 0);
+** sqlite3_free(zSQL);
+**
+**
+** The code above will render a correct SQL statement in the zSQL
+** variable even if the zText variable is a NULL pointer.
+**
+** {F17412} The "%z" formatting option works exactly like "%s" with the
+** addition that after the string has been read and copied into
+** the result, [sqlite3_free()] is called on the input string. {END}
+*/
+/*IMPORT_C*/ char *sqlite3_mprintf(const char*,...);
+/*IMPORT_C*/ char *sqlite3_snprintf(int,char*,const char*, ...);
+
+/*
+** CAPI3REF: Memory Allocation Subsystem {F17300}
+**
+** {F17301} The SQLite core uses these three routines for all of its own
+** internal memory allocation needs. {END} "Core" in the previous sentence
+** does not include operating-system specific VFS implementation. The
+** windows VFS uses native malloc and free for some operations.
+**
+** {F17302} The sqlite3_malloc() routine returns a pointer to a block
+** of memory at least N bytes in length, where N is the parameter.
+** {F17303} If sqlite3_malloc() is unable to obtain sufficient free
+** memory, it returns a NULL pointer. {F17304} If the parameter N to
+** sqlite3_malloc() is zero or negative then sqlite3_malloc() returns
+** a NULL pointer.
+**
+** {F17305} Calling sqlite3_free() with a pointer previously returned
+** by sqlite3_malloc() or sqlite3_realloc() releases that memory so
+** that it might be reused. {F17306} The sqlite3_free() routine is
+** a no-op if is called with a NULL pointer. Passing a NULL pointer
+** to sqlite3_free() is harmless. {U17307} After being freed, memory
+** should neither be read nor written. Even reading previously freed
+** memory might result in a segmentation fault or other severe error.
+** {U17309} Memory corruption, a segmentation fault, or other severe error
+** might result if sqlite3_free() is called with a non-NULL pointer that
+** was not obtained from sqlite3_malloc() or sqlite3_free().
+**
+** {F17310} The sqlite3_realloc() interface attempts to resize a
+** prior memory allocation to be at least N bytes, where N is the
+** second parameter. The memory allocation to be resized is the first
+** parameter. {F17311} If the first parameter to sqlite3_realloc()
+** is a NULL pointer then its behavior is identical to calling
+** sqlite3_malloc(N) where N is the second parameter to sqlite3_realloc().
+** {F17312} If the second parameter to sqlite3_realloc() is zero or
+** negative then the behavior is exactly the same as calling
+** sqlite3_free(P) where P is the first parameter to sqlite3_realloc().
+** {F17313} Sqlite3_realloc() returns a pointer to a memory allocation
+** of at least N bytes in size or NULL if sufficient memory is unavailable.
+** {F17314} If M is the size of the prior allocation, then min(N,M) bytes
+** of the prior allocation are copied into the beginning of buffer returned
+** by sqlite3_realloc() and the prior allocation is freed.
+** {F17315} If sqlite3_realloc() returns NULL, then the prior allocation
+** is not freed.
+**
+** {F17316} The memory returned by sqlite3_malloc() and sqlite3_realloc()
+** is always aligned to at least an 8 byte boundary. {END}
+**
+** {F17381} The default implementation
+** of the memory allocation subsystem uses the malloc(), realloc()
+** and free() provided by the standard C library. {F17382} However, if
+** SQLite is compiled with the following C preprocessor macro
+**
+** SQLITE_MEMORY_SIZE=NNN
+**
+** where NNN is an integer, then SQLite create a static
+** array of at least NNN bytes in size and use that array
+** for all of its dynamic memory allocation needs. {END} Additional
+** memory allocator options may be added in future releases.
+**
+** In SQLite version 3.5.0 and 3.5.1, it was possible to define
+** the SQLITE_OMIT_MEMORY_ALLOCATION which would cause the built-in
+** implementation of these routines to be omitted. That capability
+** is no longer provided. Only built-in memory allocators can be
+** used.
+**
+** The windows OS interface layer calls
+** the system malloc() and free() directly when converting
+** filenames between the UTF-8 encoding used by SQLite
+** and whatever filename encoding is used by the particular windows
+** installation. Memory allocation errors are detected, but
+** they are reported back as [SQLITE_CANTOPEN] or
+** [SQLITE_IOERR] rather than [SQLITE_NOMEM].
+*/
+/*IMPORT_C*/ void *sqlite3_malloc(int);
+/*IMPORT_C*/ void *sqlite3_realloc(void*, int);
+/*IMPORT_C*/ void sqlite3_free(void*);
+
+/*
+** CAPI3REF: Memory Allocator Statistics {F17370}
+**
+** In addition to the basic three allocation routines
+** [sqlite3_malloc()], [sqlite3_free()], and [sqlite3_realloc()],
+** the memory allocation subsystem included with the SQLite
+** sources provides the interfaces shown here.
+**
+** {F17371} The sqlite3_memory_used() routine returns the
+** number of bytes of memory currently outstanding (malloced but not freed).
+** {F17372} The value returned by sqlite3_memory_used() includes
+** any overhead added by SQLite, but not overhead added by the
+** library malloc() that backs the sqlite3_malloc() implementation.
+** {F17373} The sqlite3_memory_highwater() routines returns the
+** maximum number of bytes that have been outstanding at any time
+** since the highwater mark was last reset.
+** {F17374} The byte count returned by sqlite3_memory_highwater()
+** uses the same byte counting rules as sqlite3_memory_used(). {END}
+** In other words, overhead added internally by SQLite is counted,
+** but overhead from the underlying system malloc is not.
+** {F17375} If the parameter to sqlite3_memory_highwater() is true,
+** then the highwater mark is reset to the current value of
+** sqlite3_memory_used() and the prior highwater mark (before the
+** reset) is returned. {F17376} If the parameter to
+** sqlite3_memory_highwater() is zero, then the highwater mark is
+** unchanged.
+*/
+/*IMPORT_C*/ sqlite3_int64 sqlite3_memory_used(void);
+/*IMPORT_C*/ sqlite3_int64 sqlite3_memory_highwater(int resetFlag);
+
+/*
+** CAPI3REF: Compile-Time Authorization Callbacks {F12500}
+**
+** {F12501} This routine registers a authorizer callback with a particular
+** database connection, supplied in the first argument. {F12502}
+** The authorizer callback is invoked as SQL statements are being compiled
+** by [sqlite3_prepare()] or its variants [sqlite3_prepare_v2()],
+** [sqlite3_prepare16()] and [sqlite3_prepare16_v2()]. {F12503} At various
+** points during the compilation process, as logic is being created
+** to perform various actions, the authorizer callback is invoked to
+** see if those actions are allowed. The authorizer callback should
+** return SQLITE_OK to allow the action, [SQLITE_IGNORE] to disallow the
+** specific action but allow the SQL statement to continue to be
+** compiled, or [SQLITE_DENY] to cause the entire SQL statement to be
+** rejected with an error. {F12504} If the authorizer callback returns
+** any value other than [SQLITE_IGNORE], [SQLITE_OK], or [SQLITE_DENY]
+** then [sqlite3_prepare_v2()] or equivalent call that triggered
+** the authorizer shall
+** fail with an SQLITE_ERROR error code and an appropriate error message. {END}
+**
+** When the callback returns [SQLITE_OK], that means the operation
+** requested is ok. {F12505} When the callback returns [SQLITE_DENY], the
+** [sqlite3_prepare_v2()] or equivalent call that triggered the
+** authorizer shall fail
+** with an SQLITE_ERROR error code and an error message explaining that
+** access is denied. {F12506} If the authorizer code (the 2nd parameter
+** to the authorizer callback is anything other than [SQLITE_READ], then
+** a return of [SQLITE_IGNORE] has the same effect as [SQLITE_DENY].
+** If the authorizer code is [SQLITE_READ] and the callback returns
+** [SQLITE_IGNORE] then the prepared statement is constructed to
+** insert a NULL value in place of the table column that would have
+** been read if [SQLITE_OK] had been returned. {END}
+**
+** {F12510} The first parameter to the authorizer callback is a copy of
+** the third parameter to the sqlite3_set_authorizer() interface.
+** {F12511} The second parameter to the callback is an integer
+** [SQLITE_COPY | action code] that specifies the particular action
+** to be authorized. {END} The available action codes are
+** [SQLITE_COPY | documented separately]. {F12512} The third through sixth
+** parameters to the callback are zero-terminated strings that contain
+** additional details about the action to be authorized. {END}
+**
+** An authorizer is used when preparing SQL statements from an untrusted
+** source, to ensure that the SQL statements do not try to access data
+** that they are not allowed to see, or that they do not try to
+** execute malicious statements that damage the database. For
+** example, an application may allow a user to enter arbitrary
+** SQL queries for evaluation by a database. But the application does
+** not want the user to be able to make arbitrary changes to the
+** database. An authorizer could then be put in place while the
+** user-entered SQL is being prepared that disallows everything
+** except SELECT statements.
+**
+** {F12520} Only a single authorizer can be in place on a database connection
+** at a time. Each call to sqlite3_set_authorizer overrides the
+** previous call. {F12521} A NULL authorizer means that no authorization
+** callback is invoked. {F12522} The default authorizer is NULL. {END}
+**
+** Note that the authorizer callback is invoked only during
+** [sqlite3_prepare()] or its variants. {F12523} Authorization is not
+** performed during statement evaluation in [sqlite3_step()]. {END}
+*/
+/*IMPORT_C*/ int sqlite3_set_authorizer(
+ sqlite3*,
+ int (*xAuth)(void*,int,const char*,const char*,const char*,const char*),
+ void *pUserData
+);
+
+/*
+** CAPI3REF: Authorizer Return Codes {F12590}
+**
+** The [sqlite3_set_authorizer | authorizer callback function] must
+** return either [SQLITE_OK] or one of these two constants in order
+** to signal SQLite whether or not the action is permitted. See the
+** [sqlite3_set_authorizer | authorizer documentation] for additional
+** information.
+*/
+#define SQLITE_DENY 1 /* Abort the SQL statement with an error */
+#define SQLITE_IGNORE 2 /* Don't allow access, but don't generate an error */
+
+/*
+** CAPI3REF: Authorizer Action Codes {F12550}
+**
+** The [sqlite3_set_authorizer()] interface registers a callback function
+** that is invoked to authorizer certain SQL statement actions. {F12551} The
+** second parameter to the callback is an integer code that specifies
+** what action is being authorized. These are the integer action codes that
+** the authorizer callback may be passed. {END}
+**
+** These action code values signify what kind of operation is to be
+** authorized. {F12552} The 3rd and 4th parameters to the authorization
+** callback function will be parameters or NULL depending on which of these
+** codes is used as the second parameter. {F12553} The 5th parameter to the
+** authorizer callback is the name of the database ("main", "temp",
+** etc.) if applicable. {F12554} The 6th parameter to the authorizer callback
+** is the name of the inner-most trigger or view that is responsible for
+** the access attempt or NULL if this access attempt is directly from
+** top-level SQL code.
+*/
+/******************************************* 3rd ************ 4th ***********/
+#define SQLITE_CREATE_INDEX 1 /* Index Name Table Name */
+#define SQLITE_CREATE_TABLE 2 /* Table Name NULL */
+#define SQLITE_CREATE_TEMP_INDEX 3 /* Index Name Table Name */
+#define SQLITE_CREATE_TEMP_TABLE 4 /* Table Name NULL */
+#define SQLITE_CREATE_TEMP_TRIGGER 5 /* Trigger Name Table Name */
+#define SQLITE_CREATE_TEMP_VIEW 6 /* View Name NULL */
+#define SQLITE_CREATE_TRIGGER 7 /* Trigger Name Table Name */
+#define SQLITE_CREATE_VIEW 8 /* View Name NULL */
+#define SQLITE_DELETE 9 /* Table Name NULL */
+#define SQLITE_DROP_INDEX 10 /* Index Name Table Name */
+#define SQLITE_DROP_TABLE 11 /* Table Name NULL */
+#define SQLITE_DROP_TEMP_INDEX 12 /* Index Name Table Name */
+#define SQLITE_DROP_TEMP_TABLE 13 /* Table Name NULL */
+#define SQLITE_DROP_TEMP_TRIGGER 14 /* Trigger Name Table Name */
+#define SQLITE_DROP_TEMP_VIEW 15 /* View Name NULL */
+#define SQLITE_DROP_TRIGGER 16 /* Trigger Name Table Name */
+#define SQLITE_DROP_VIEW 17 /* View Name NULL */
+#define SQLITE_INSERT 18 /* Table Name NULL */
+#define SQLITE_PRAGMA 19 /* Pragma Name 1st arg or NULL */
+#define SQLITE_READ 20 /* Table Name Column Name */
+#define SQLITE_SELECT 21 /* NULL NULL */
+#define SQLITE_TRANSACTION 22 /* NULL NULL */
+#define SQLITE_UPDATE 23 /* Table Name Column Name */
+#define SQLITE_ATTACH 24 /* Filename NULL */
+#define SQLITE_DETACH 25 /* Database Name NULL */
+#define SQLITE_ALTER_TABLE 26 /* Database Name Table Name */
+#define SQLITE_REINDEX 27 /* Index Name NULL */
+#define SQLITE_ANALYZE 28 /* Table Name NULL */
+#define SQLITE_CREATE_VTABLE 29 /* Table Name Module Name */
+#define SQLITE_DROP_VTABLE 30 /* Table Name Module Name */
+#define SQLITE_FUNCTION 31 /* Function Name NULL */
+#define SQLITE_COPY 0 /* No longer used */
+
+/*
+** CAPI3REF: Tracing And Profiling Functions {F12280}
+**
+** These routines register callback functions that can be used for
+** tracing and profiling the execution of SQL statements.
+**
+** {F12281} The callback function registered by sqlite3_trace() is invoked
+** at the first [sqlite3_step()] for the evaluation of an SQL statement.
+** {F12282} Only a single trace callback can be registered at a time.
+** Each call to sqlite3_trace() overrides the previous. {F12283} A
+** NULL callback for sqlite3_trace() disables tracing. {F12284} The
+** first argument to the trace callback is a copy of the pointer which
+** was the 3rd argument to sqlite3_trace. {F12285} The second argument
+** to the trace callback is a zero-terminated UTF8 string containing
+** the original text of the SQL statement as it was passed into
+** [sqlite3_prepare_v2()] or the equivalent. {END} Note that the
+** host parameter are not expanded in the SQL statement text.
+**
+** {F12287} The callback function registered by sqlite3_profile() is invoked
+** as each SQL statement finishes. {F12288} The first parameter to the
+** profile callback is a copy of the 3rd parameter to sqlite3_profile().
+** {F12289} The second parameter to the profile callback is a
+** zero-terminated UTF-8 string that contains the complete text of
+** the SQL statement as it was processed by [sqlite3_prepare_v2()] or
+** the equivalent. {F12290} The third parameter to the profile
+** callback is an estimate of the number of nanoseconds of
+** wall-clock time required to run the SQL statement from start
+** to finish. {END}
+**
+** The sqlite3_profile() API is currently considered experimental and
+** is subject to change.
+*/
+/*IMPORT_C*/ void *sqlite3_trace(sqlite3*, void(*xTrace)(void*,const char*), void*);
+/*IMPORT_C*/ void *sqlite3_profile(sqlite3*,
+ void(*xProfile)(void*,const char*,sqlite3_uint64), void*);
+
+/*
+** CAPI3REF: Query Progress Callbacks {F12910}
+**
+** {F12911} This routine configures a callback function - the
+** progress callback - that is invoked periodically during long
+** running calls to [sqlite3_exec()], [sqlite3_step()] and
+** [sqlite3_get_table()]. {END} An example use for this
+** interface is to keep a GUI updated during a large query.
+**
+** {F12912} The progress callback is invoked once for every N virtual
+** machine opcodes, where N is the second argument to this function.
+** {F12913} The progress callback itself is identified by the third
+** argument to this function. {F12914} The fourth argument to this
+** function is a void pointer passed to the progress callback
+** function each time it is invoked. {END}
+**
+** {F12915} If a call to [sqlite3_exec()], [sqlite3_step()], or
+** [sqlite3_get_table()] results in fewer than N opcodes being executed,
+** then the progress callback is never invoked. {END}
+**
+** {F12916} Only a single progress callback function may be registered for each
+** open database connection. Every call to sqlite3_progress_handler()
+** overwrites the results of the previous call. {F12917}
+** To remove the progress callback altogether, pass NULL as the third
+** argument to this function. {END}
+**
+** {F12918} If the progress callback returns a result other than 0, then
+** the current query is immediately terminated and any database changes
+** rolled back. {F12919}
+** The containing [sqlite3_exec()], [sqlite3_step()], or
+** [sqlite3_get_table()] call returns SQLITE_INTERRUPT. {END} This feature
+** can be used, for example, to implement the "Cancel" button on a
+** progress dialog box in a GUI.
+*/
+/*IMPORT_C*/ void sqlite3_progress_handler(sqlite3*, int, int(*)(void*), void*);
+
+/*
+** CAPI3REF: Opening A New Database Connection {F12700}
+**
+** {F12701} These routines open an SQLite database file whose name
+** is given by the filename argument.
+** {F12702} The filename argument is interpreted as UTF-8
+** for [sqlite3_open()] and [sqlite3_open_v2()] and as UTF-16
+** in the native byte order for [sqlite3_open16()].
+** {F12703} An [sqlite3*] handle is returned in *ppDb, even
+** if an error occurs. {F12723} (Exception: if SQLite is unable
+** to allocate memory to hold the [sqlite3] object, a NULL will
+** be written into *ppDb instead of a pointer to the [sqlite3] object.)
+** {F12704} If the database is opened (and/or created)
+** successfully, then [SQLITE_OK] is returned. {F12705} Otherwise an
+** error code is returned. {F12706} The
+** [sqlite3_errmsg()] or [sqlite3_errmsg16()] routines can be used to obtain
+** an English language description of the error.
+**
+** {F12707} The default encoding for the database will be UTF-8 if
+** [sqlite3_open()] or [sqlite3_open_v2()] is called and
+** UTF-16 in the native byte order if [sqlite3_open16()] is used.
+**
+** {F12708} Whether or not an error occurs when it is opened, resources
+** associated with the [sqlite3*] handle should be released by passing it
+** to [sqlite3_close()] when it is no longer required.
+**
+** {F12709} The [sqlite3_open_v2()] interface works like [sqlite3_open()]
+** except that it acccepts two additional parameters for additional control
+** over the new database connection. {F12710} The flags parameter can be
+** one of:
+**
+**
+** - [SQLITE_OPEN_READONLY]
+**
- [SQLITE_OPEN_READWRITE]
+**
- [SQLITE_OPEN_READWRITE] | [SQLITE_OPEN_CREATE]
+**
+**
+** {F12711} The first value opens the database read-only.
+** {F12712} If the database does not previously exist, an error is returned.
+** {F12713} The second option opens
+** the database for reading and writing if possible, or reading only if
+** if the file is write protected. {F12714} In either case the database
+** must already exist or an error is returned. {F12715} The third option
+** opens the database for reading and writing and creates it if it does
+** not already exist. {F12716}
+** The third options is behavior that is always used for [sqlite3_open()]
+** and [sqlite3_open16()].
+**
+** {F12717} If the filename is ":memory:", then an private
+** in-memory database is created for the connection. {F12718} This in-memory
+** database will vanish when the database connection is closed. {END} Future
+** version of SQLite might make use of additional special filenames
+** that begin with the ":" character. It is recommended that
+** when a database filename really does begin with
+** ":" that you prefix the filename with a pathname like "./" to
+** avoid ambiguity.
+**
+** {F12719} If the filename is an empty string, then a private temporary
+** on-disk database will be created. {F12720} This private database will be
+** automatically deleted as soon as the database connection is closed.
+**
+** {F12721} The fourth parameter to sqlite3_open_v2() is the name of the
+** [sqlite3_vfs] object that defines the operating system
+** interface that the new database connection should use. {F12722} If the
+** fourth parameter is a NULL pointer then the default [sqlite3_vfs]
+** object is used. {END}
+**
+** Note to windows users: The encoding used for the filename argument
+** of [sqlite3_open()] and [sqlite3_open_v2()] must be UTF-8, not whatever
+** codepage is currently defined. Filenames containing international
+** characters must be converted to UTF-8 prior to passing them into
+** [sqlite3_open()] or [sqlite3_open_v2()].
+*/
+/*IMPORT_C*/ int sqlite3_open(
+ const char *filename, /* Database filename (UTF-8) */
+ sqlite3 **ppDb /* OUT: SQLite db handle */
+);
+/*IMPORT_C*/ int sqlite3_open16(
+ const void *filename, /* Database filename (UTF-16) */
+ sqlite3 **ppDb /* OUT: SQLite db handle */
+);
+/*IMPORT_C*/ int sqlite3_open_v2(
+ const char *filename, /* Database filename (UTF-8) */
+ sqlite3 **ppDb, /* OUT: SQLite db handle */
+ int flags, /* Flags */
+ const char *zVfs /* Name of VFS module to use */
+);
+
+/*
+** CAPI3REF: Error Codes And Messages {F12800}
+**
+** {F12801} The sqlite3_errcode() interface returns the numeric
+** [SQLITE_OK | result code] or [SQLITE_IOERR_READ | extended result code]
+** for the most recent failed sqlite3_* API call associated
+** with [sqlite3] handle 'db'. {U12802} If a prior API call failed but the
+** most recent API call succeeded, the return value from sqlite3_errcode()
+** is undefined. {END}
+**
+** {F12803} The sqlite3_errmsg() and sqlite3_errmsg16() return English-language
+** text that describes the error, as either UTF8 or UTF16 respectively.
+** {F12804} Memory to hold the error message string is managed internally.
+** {U12805} The
+** string may be overwritten or deallocated by subsequent calls to SQLite
+** interface functions. {END}
+**
+** {F12806} Calls to many sqlite3_* functions set the error code and
+** string returned by [sqlite3_errcode()], [sqlite3_errmsg()], and
+** [sqlite3_errmsg16()] overwriting the previous values. {F12807}
+** Except, calls to [sqlite3_errcode()],
+** [sqlite3_errmsg()], and [sqlite3_errmsg16()] themselves do not affect the
+** results of future invocations. {F12808} Calls to API routines that
+** do not return an error code (example: [sqlite3_data_count()]) do not
+** change the error code returned by this routine. {F12809} Interfaces that
+** are not associated with a specific database connection (examples:
+** [sqlite3_mprintf()] or [sqlite3_enable_shared_cache()] do not change
+** the return code. {END}
+**
+** {F12810} Assuming no other intervening sqlite3_* API calls are made,
+** the error code returned by this function is associated with the same
+** error as the strings returned by [sqlite3_errmsg()] and [sqlite3_errmsg16()].
+*/
+/*IMPORT_C*/ int sqlite3_errcode(sqlite3 *db);
+/*IMPORT_C*/ const char *sqlite3_errmsg(sqlite3*);
+/*IMPORT_C*/ const void *sqlite3_errmsg16(sqlite3*);
+
+/*
+** CAPI3REF: SQL Statement Object {F13000}
+**
+** An instance of this object represent single SQL statements. This
+** object is variously known as a "prepared statement" or a
+** "compiled SQL statement" or simply as a "statement".
+**
+** The life of a statement object goes something like this:
+**
+**
+** - Create the object using [sqlite3_prepare_v2()] or a related
+** function.
+**
- Bind values to host parameters using
+** [sqlite3_bind_blob | sqlite3_bind_* interfaces].
+**
- Run the SQL by calling [sqlite3_step()] one or more times.
+**
- Reset the statement using [sqlite3_reset()] then go back
+** to step 2. Do this zero or more times.
+**
- Destroy the object using [sqlite3_finalize()].
+**
+**
+** Refer to documentation on individual methods above for additional
+** information.
+*/
+typedef struct sqlite3_stmt sqlite3_stmt;
+
+/*
+** CAPI3REF: Compiling An SQL Statement {F13010}
+**
+** To execute an SQL query, it must first be compiled into a byte-code
+** program using one of these routines.
+**
+** {F13011} The first argument "db" is an [sqlite3 | SQLite database handle]
+** obtained from a prior call to [sqlite3_open()], [sqlite3_open_v2()]
+** or [sqlite3_open16()]. {F13012}
+** The second argument "zSql" is the statement to be compiled, encoded
+** as either UTF-8 or UTF-16. The sqlite3_prepare() and sqlite3_prepare_v2()
+** interfaces uses UTF-8 and sqlite3_prepare16() and sqlite3_prepare16_v2()
+** use UTF-16. {END}
+**
+** {F13013} If the nByte argument is less
+** than zero, then zSql is read up to the first zero terminator.
+** {F13014} If nByte is non-negative, then it is the maximum number of
+** bytes read from zSql. When nByte is non-negative, the
+** zSql string ends at either the first '\000' or '\u0000' character or
+** until the nByte-th byte, whichever comes first. {END}
+**
+** {F13015} *pzTail is made to point to the first byte past the end of the
+** first SQL statement in zSql. These routines only compiles the first
+** statement in zSql, so *pzTail is left pointing to what remains
+** uncompiled. {END}
+**
+** {F13016} *ppStmt is left pointing to a compiled
+** [sqlite3_stmt | SQL statement structure] that can be
+** executed using [sqlite3_step()]. Or if there is an error, *ppStmt may be
+** set to NULL. {F13017} If the input text contains no SQL (if the input
+** is and empty string or a comment) then *ppStmt is set to NULL.
+** {U13018} The calling procedure is responsible for deleting the
+** compiled SQL statement
+** using [sqlite3_finalize()] after it has finished with it.
+**
+** {F13019} On success, [SQLITE_OK] is returned. Otherwise an
+** [SQLITE_ERROR | error code] is returned. {END}
+**
+** The sqlite3_prepare_v2() and sqlite3_prepare16_v2() interfaces are
+** recommended for all new programs. The two older interfaces are retained
+** for backwards compatibility, but their use is discouraged.
+** {F13020} In the "v2" interfaces, the prepared statement
+** that is returned (the [sqlite3_stmt] object) contains a copy of the
+** original SQL text. {END} This causes the [sqlite3_step()] interface to
+** behave a differently in two ways:
+**
+**
+** - {F13022}
+** If the database schema changes, instead of returning [SQLITE_SCHEMA] as it
+** always used to do, [sqlite3_step()] will automatically recompile the SQL
+** statement and try to run it again. {F12023} If the schema has changed in
+** a way that makes the statement no longer valid, [sqlite3_step()] will still
+** return [SQLITE_SCHEMA]. {END} But unlike the legacy behavior,
+** [SQLITE_SCHEMA] is now a fatal error. {F12024} Calling
+** [sqlite3_prepare_v2()] again will not make the
+** error go away. {F12025} Note: use [sqlite3_errmsg()] to find the text
+** of the parsing error that results in an [SQLITE_SCHEMA] return. {END}
+**
+**
+** -
+** {F13030} When an error occurs,
+** [sqlite3_step()] will return one of the detailed
+** [SQLITE_ERROR | result codes] or
+** [SQLITE_IOERR_READ | extended result codes]. {F13031}
+** The legacy behavior was that [sqlite3_step()] would only return a generic
+** [SQLITE_ERROR] result code and you would have to make a second call to
+** [sqlite3_reset()] in order to find the underlying cause of the problem.
+** {F13032}
+** With the "v2" prepare interfaces, the underlying reason for the error is
+** returned immediately. {END}
+**
+**
+*/
+/*IMPORT_C*/ int sqlite3_prepare(
+ sqlite3 *db, /* Database handle */
+ const char *zSql, /* SQL statement, UTF-8 encoded */
+ int nByte, /* Maximum length of zSql in bytes. */
+ sqlite3_stmt **ppStmt, /* OUT: Statement handle */
+ const char **pzTail /* OUT: Pointer to unused portion of zSql */
+);
+/*IMPORT_C*/ int sqlite3_prepare_v2(
+ sqlite3 *db, /* Database handle */
+ const char *zSql, /* SQL statement, UTF-8 encoded */
+ int nByte, /* Maximum length of zSql in bytes. */
+ sqlite3_stmt **ppStmt, /* OUT: Statement handle */
+ const char **pzTail /* OUT: Pointer to unused portion of zSql */
+);
+/*IMPORT_C*/ int sqlite3_prepare16(
+ sqlite3 *db, /* Database handle */
+ const void *zSql, /* SQL statement, UTF-16 encoded */
+ int nByte, /* Maximum length of zSql in bytes. */
+ sqlite3_stmt **ppStmt, /* OUT: Statement handle */
+ const void **pzTail /* OUT: Pointer to unused portion of zSql */
+);
+/*IMPORT_C*/ int sqlite3_prepare16_v2(
+ sqlite3 *db, /* Database handle */
+ const void *zSql, /* SQL statement, UTF-16 encoded */
+ int nByte, /* Maximum length of zSql in bytes. */
+ sqlite3_stmt **ppStmt, /* OUT: Statement handle */
+ const void **pzTail /* OUT: Pointer to unused portion of zSql */
+);
+
+/*
+** CAPIREF: Retrieving Statement SQL {F13100}
+**
+** {F13101} If the compiled SQL statement passed as an argument was
+** compiled using either [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()],
+** then this function returns a pointer to a zero-terminated string
+** containing a copy of the original SQL statement. {F13102} The
+** pointer is valid until the statement
+** is deleted using sqlite3_finalize().
+** {F13103} The string returned by sqlite3_sql() is always UTF8 even
+** if a UTF16 string was originally entered using [sqlite3_prepare16_v2()]
+** or the equivalent.
+**
+** {F13104} If the statement was compiled using either of the legacy
+** interfaces [sqlite3_prepare()] or [sqlite3_prepare16()], this
+** function returns NULL.
+*/
+/*IMPORT_C*/ const char *sqlite3_sql(sqlite3_stmt *pStmt);
+
+/*
+** CAPI3REF: Dynamically Typed Value Object {F15000}
+**
+** {F15001} SQLite uses the sqlite3_value object to represent all values
+** that are or can be stored in a database table. {END}
+** SQLite uses dynamic typing for the values it stores.
+** {F15002} Values stored in sqlite3_value objects can be
+** be integers, floating point values, strings, BLOBs, or NULL.
+*/
+typedef struct Mem sqlite3_value;
+
+/*
+** CAPI3REF: SQL Function Context Object {F16001}
+**
+** The context in which an SQL function executes is stored in an
+** sqlite3_context object. {F16002} A pointer to an sqlite3_context
+** object is always first parameter to application-defined SQL functions.
+*/
+typedef struct sqlite3_context sqlite3_context;
+
+/*
+** CAPI3REF: Binding Values To Prepared Statements {F13500}
+**
+** {F13501} In the SQL strings input to [sqlite3_prepare_v2()] and its
+** variants, literals may be replace by a parameter in one
+** of these forms:
+**
+**
+** - ?
+**
- ?NNN
+**
- :AAA
+**
- @AAA
+**
- $VVV
+**
+**
+** In the parameter forms shown above NNN is an integer literal,
+** AAA is an alphanumeric identifier and VVV is a variable name according
+** to the syntax rules of the TCL programming language. {END}
+** The values of these parameters (also called "host parameter names")
+** can be set using the sqlite3_bind_*() routines defined here.
+**
+** {F13502} The first argument to the sqlite3_bind_*() routines always
+** is a pointer to the [sqlite3_stmt] object returned from
+** [sqlite3_prepare_v2()] or its variants. {F13503} The second
+** argument is the index of the parameter to be set. {F13504} The
+** first parameter has an index of 1. {F13505} When the same named
+** parameter is used more than once, second and subsequent
+** occurrences have the same index as the first occurrence.
+** {F13506} The index for named parameters can be looked up using the
+** [sqlite3_bind_parameter_name()] API if desired. {F13507} The index
+** for "?NNN" parameters is the value of NNN.
+** {F13508} The NNN value must be between 1 and the compile-time
+** parameter SQLITE_MAX_VARIABLE_NUMBER (default value: 999). {END}
+** See limits.html for additional information.
+**
+** {F13509} The third argument is the value to bind to the parameter. {END}
+**
+** {F13510} In those
+** routines that have a fourth argument, its value is the number of bytes
+** in the parameter. To be clear: the value is the number of bytes in the
+** string, not the number of characters. {F13511} The number
+** of bytes does not include the zero-terminator at the end of strings.
+** {F13512}
+** If the fourth parameter is negative, the length of the string is
+** number of bytes up to the first zero terminator. {END}
+**
+** {F13513}
+** The fifth argument to sqlite3_bind_blob(), sqlite3_bind_text(), and
+** sqlite3_bind_text16() is a destructor used to dispose of the BLOB or
+** text after SQLite has finished with it. {F13514} If the fifth argument is
+** the special value [SQLITE_STATIC], then the library assumes that the
+** information is in static, unmanaged space and does not need to be freed.
+** {F13515} If the fifth argument has the value [SQLITE_TRANSIENT], then
+** SQLite makes its own private copy of the data immediately, before
+** the sqlite3_bind_*() routine returns. {END}
+**
+** {F13520} The sqlite3_bind_zeroblob() routine binds a BLOB of length N that
+** is filled with zeros. {F13521} A zeroblob uses a fixed amount of memory
+** (just an integer to hold it size) while it is being processed. {END}
+** Zeroblobs are intended to serve as place-holders for BLOBs whose
+** content is later written using
+** [sqlite3_blob_open | increment BLOB I/O] routines. {F13522} A negative
+** value for the zeroblob results in a zero-length BLOB. {END}
+**
+** {F13530} The sqlite3_bind_*() routines must be called after
+** [sqlite3_prepare_v2()] (and its variants) or [sqlite3_reset()] and
+** before [sqlite3_step()]. {F13531}
+** Bindings are not cleared by the [sqlite3_reset()] routine.
+** {F13532} Unbound parameters are interpreted as NULL. {END}
+**
+** {F13540} These routines return [SQLITE_OK] on success or an error code if
+** anything goes wrong. {F13541} [SQLITE_RANGE] is returned if the parameter
+** index is out of range. {F13542} [SQLITE_NOMEM] is returned if malloc fails.
+** {F13543} [SQLITE_MISUSE] is returned if these routines are called on a
+** virtual machine that is the wrong state or which has already been finalized.
+*/
+/*IMPORT_C*/ int sqlite3_bind_blob(sqlite3_stmt*, int, const void*, int n, void(*)(void*));
+/*IMPORT_C*/ int sqlite3_bind_double(sqlite3_stmt*, int, double);
+/*IMPORT_C*/ int sqlite3_bind_int(sqlite3_stmt*, int, int);
+/*IMPORT_C*/ int sqlite3_bind_int64(sqlite3_stmt*, int, sqlite3_int64);
+/*IMPORT_C*/ int sqlite3_bind_null(sqlite3_stmt*, int);
+/*IMPORT_C*/ int sqlite3_bind_text(sqlite3_stmt*, int, const char*, int n, void(*)(void*));
+/*IMPORT_C*/ int sqlite3_bind_text16(sqlite3_stmt*, int, const void*, int, void(*)(void*));
+/*IMPORT_C*/ int sqlite3_bind_value(sqlite3_stmt*, int, const sqlite3_value*);
+/*IMPORT_C*/ int sqlite3_bind_zeroblob(sqlite3_stmt*, int, int n);
+
+/*
+** CAPI3REF: Number Of Host Parameters {F13600}
+**
+** {F13601} Return the largest host parameter index in the precompiled
+** statement given as the argument. {F13602} When the host parameters
+** are of the forms like ":AAA", "$VVV", "@AAA", or "?",
+** then they are assigned sequential increasing numbers beginning
+** with one, so the value returned is the number of parameters.
+** {F13603} However
+** if the same host parameter name is used multiple times, each occurrance
+** is given the same number, so the value returned in that case is the number
+** of unique host parameter names. {F13604} If host parameters of the
+** form "?NNN" are used (where NNN is an integer) then there might be
+** gaps in the numbering and the value returned by this interface is
+** the index of the host parameter with the largest index value. {END}
+**
+** {U13605} The prepared statement must not be [sqlite3_finalize | finalized]
+** prior to this routine returning. Otherwise the results are undefined
+** and probably undesirable.
+*/
+/*IMPORT_C*/ int sqlite3_bind_parameter_count(sqlite3_stmt*);
+
+/*
+** CAPI3REF: Name Of A Host Parameter {F13620}
+**
+** {F13621} This routine returns a pointer to the name of the n-th
+** parameter in a [sqlite3_stmt | prepared statement]. {F13622}
+** Host parameters of the form ":AAA" or "@AAA" or "$VVV" have a name
+** which is the string ":AAA" or "@AAA" or "$VVV".
+** In other words, the initial ":" or "$" or "@"
+** is included as part of the name. {F13626}
+** Parameters of the form "?" or "?NNN" have no name.
+**
+** {F13623} The first host parameter has an index of 1, not 0.
+**
+** {F13624} If the value n is out of range or if the n-th parameter is
+** nameless, then NULL is returned. {F13625} The returned string is
+** always in the UTF-8 encoding even if the named parameter was
+** originally specified as UTF-16 in [sqlite3_prepare16()] or
+** [sqlite3_prepare16_v2()].
+*/
+/*IMPORT_C*/ const char *sqlite3_bind_parameter_name(sqlite3_stmt*, int);
+
+/*
+** CAPI3REF: Index Of A Parameter With A Given Name {F13640}
+**
+** {F13641} This routine returns the index of a host parameter with the
+** given name. {F13642} The name must match exactly. {F13643}
+** If no parameter with the given name is found, return 0.
+** {F13644} Parameter names must be UTF8.
+*/
+/*IMPORT_C*/ int sqlite3_bind_parameter_index(sqlite3_stmt*, const char *zName);
+
+/*
+** CAPI3REF: Reset All Bindings On A Prepared Statement {F13660}
+**
+** {F13661} Contrary to the intuition of many, [sqlite3_reset()] does not
+** reset the [sqlite3_bind_blob | bindings] on a
+** [sqlite3_stmt | prepared statement]. {F13662} Use this routine to
+** reset all host parameters to NULL.
+*/
+/*IMPORT_C*/ int sqlite3_clear_bindings(sqlite3_stmt*);
+
+/*
+** CAPI3REF: Number Of Columns In A Result Set {F13710}
+**
+** {F13711} Return the number of columns in the result set returned by the
+** [sqlite3_stmt | compiled SQL statement]. {F13712} This routine returns 0
+** if pStmt is an SQL statement that does not return data (for
+** example an UPDATE).
+*/
+/*IMPORT_C*/ int sqlite3_column_count(sqlite3_stmt *pStmt);
+
+/*
+** CAPI3REF: Column Names In A Result Set {F13720}
+**
+** {F13721} These routines return the name assigned to a particular column
+** in the result set of a SELECT statement. {F13722} The sqlite3_column_name()
+** interface returns a pointer to a zero-terminated UTF8 string
+** and sqlite3_column_name16() returns a pointer to a zero-terminated
+** UTF16 string. {F13723} The first parameter is the
+** [sqlite3_stmt | prepared statement] that implements the SELECT statement.
+** The second parameter is the column number. The left-most column is
+** number 0.
+**
+** {F13724} The returned string pointer is valid until either the
+** [sqlite3_stmt | prepared statement] is destroyed by [sqlite3_finalize()]
+** or until the next call sqlite3_column_name() or sqlite3_column_name16()
+** on the same column.
+**
+** {F13725} If sqlite3_malloc() fails during the processing of either routine
+** (for example during a conversion from UTF-8 to UTF-16) then a
+** NULL pointer is returned.
+*/
+/*IMPORT_C*/ const char *sqlite3_column_name(sqlite3_stmt*, int N);
+/*IMPORT_C*/ const void *sqlite3_column_name16(sqlite3_stmt*, int N);
+
+/*
+** CAPI3REF: Source Of Data In A Query Result {F13740}
+**
+** {F13741} These routines provide a means to determine what column of what
+** table in which database a result of a SELECT statement comes from.
+** {F13742} The name of the database or table or column can be returned as
+** either a UTF8 or UTF16 string. {F13743} The _database_ routines return
+** the database name, the _table_ routines return the table name, and
+** the origin_ routines return the column name. {F13744}
+** The returned string is valid until
+** the [sqlite3_stmt | prepared statement] is destroyed using
+** [sqlite3_finalize()] or until the same information is requested
+** again in a different encoding.
+**
+** {F13745} The names returned are the original un-aliased names of the
+** database, table, and column.
+**
+** {F13746} The first argument to the following calls is a
+** [sqlite3_stmt | compiled SQL statement].
+** {F13747} These functions return information about the Nth column returned by
+** the statement, where N is the second function argument.
+**
+** {F13748} If the Nth column returned by the statement is an expression
+** or subquery and is not a column value, then all of these functions
+** return NULL. {F13749} Otherwise, they return the
+** name of the attached database, table and column that query result
+** column was extracted from.
+**
+** {F13750} As with all other SQLite APIs, those postfixed with "16" return
+** UTF-16 encoded strings, the other functions return UTF-8. {END}
+**
+** These APIs are only available if the library was compiled with the
+** SQLITE_ENABLE_COLUMN_METADATA preprocessor symbol defined.
+**
+** {U13751}
+** If two or more threads call one or more of these routines against the same
+** prepared statement and column at the same time then the results are
+** undefined.
+*/
+/*IMPORT_C*/ const char *sqlite3_column_database_name(sqlite3_stmt*,int);
+/*IMPORT_C*/ const void *sqlite3_column_database_name16(sqlite3_stmt*,int);
+/*IMPORT_C*/ const char *sqlite3_column_table_name(sqlite3_stmt*,int);
+/*IMPORT_C*/ const void *sqlite3_column_table_name16(sqlite3_stmt*,int);
+/*IMPORT_C*/ const char *sqlite3_column_origin_name(sqlite3_stmt*,int);
+/*IMPORT_C*/ const void *sqlite3_column_origin_name16(sqlite3_stmt*,int);
+
+/*
+** CAPI3REF: Declared Datatype Of A Query Result {F13760}
+**
+** The first parameter is a [sqlite3_stmt | compiled SQL statement].
+** {F13761} If this statement is a SELECT statement and the Nth column of the
+** returned result set of that SELECT is a table column (not an
+** expression or subquery) then the declared type of the table
+** column is returned. {F13762} If the Nth column of the result set is an
+** expression or subquery, then a NULL pointer is returned.
+** {F13763} The returned string is always UTF-8 encoded. {END}
+** For example, in the database schema:
+**
+** CREATE TABLE t1(c1 VARIANT);
+**
+** And the following statement compiled:
+**
+** SELECT c1 + 1, c1 FROM t1;
+**
+** Then this routine would return the string "VARIANT" for the second
+** result column (i==1), and a NULL pointer for the first result column
+** (i==0).
+**
+** SQLite uses dynamic run-time typing. So just because a column
+** is declared to contain a particular type does not mean that the
+** data stored in that column is of the declared type. SQLite is
+** strongly typed, but the typing is dynamic not static. Type
+** is associated with individual values, not with the containers
+** used to hold those values.
+*/
+/*IMPORT_C*/ const char *sqlite3_column_decltype(sqlite3_stmt *, int i);
+/*IMPORT_C*/ const void *sqlite3_column_decltype16(sqlite3_stmt*,int);
+
+/*
+** CAPI3REF: Evaluate An SQL Statement {F13200}
+**
+** After an [sqlite3_stmt | SQL statement] has been prepared with a call
+** to either [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()] or to one of
+** the legacy interfaces [sqlite3_prepare()] or [sqlite3_prepare16()],
+** then this function must be called one or more times to evaluate the
+** statement.
+**
+** The details of the behavior of this sqlite3_step() interface depend
+** on whether the statement was prepared using the newer "v2" interface
+** [sqlite3_prepare_v2()] and [sqlite3_prepare16_v2()] or the older legacy
+** interface [sqlite3_prepare()] and [sqlite3_prepare16()]. The use of the
+** new "v2" interface is recommended for new applications but the legacy
+** interface will continue to be supported.
+**
+** In the lagacy interface, the return value will be either [SQLITE_BUSY],
+** [SQLITE_DONE], [SQLITE_ROW], [SQLITE_ERROR], or [SQLITE_MISUSE].
+** With the "v2" interface, any of the other [SQLITE_OK | result code]
+** or [SQLITE_IOERR_READ | extended result code] might be returned as
+** well.
+**
+** [SQLITE_BUSY] means that the database engine was unable to acquire the
+** database locks it needs to do its job. If the statement is a COMMIT
+** or occurs outside of an explicit transaction, then you can retry the
+** statement. If the statement is not a COMMIT and occurs within a
+** explicit transaction then you should rollback the transaction before
+** continuing.
+**
+** [SQLITE_DONE] means that the statement has finished executing
+** successfully. sqlite3_step() should not be called again on this virtual
+** machine without first calling [sqlite3_reset()] to reset the virtual
+** machine back to its initial state.
+**
+** If the SQL statement being executed returns any data, then
+** [SQLITE_ROW] is returned each time a new row of data is ready
+** for processing by the caller. The values may be accessed using
+** the [sqlite3_column_int | column access functions].
+** sqlite3_step() is called again to retrieve the next row of data.
+**
+** [SQLITE_ERROR] means that a run-time error (such as a constraint
+** violation) has occurred. sqlite3_step() should not be called again on
+** the VM. More information may be found by calling [sqlite3_errmsg()].
+** With the legacy interface, a more specific error code (example:
+** [SQLITE_INTERRUPT], [SQLITE_SCHEMA], [SQLITE_CORRUPT], and so forth)
+** can be obtained by calling [sqlite3_reset()] on the
+** [sqlite3_stmt | prepared statement]. In the "v2" interface,
+** the more specific error code is returned directly by sqlite3_step().
+**
+** [SQLITE_MISUSE] means that the this routine was called inappropriately.
+** Perhaps it was called on a [sqlite3_stmt | prepared statement] that has
+** already been [sqlite3_finalize | finalized] or on one that had
+** previously returned [SQLITE_ERROR] or [SQLITE_DONE]. Or it could
+** be the case that the same database connection is being used by two or
+** more threads at the same moment in time.
+**
+** Goofy Interface Alert:
+** In the legacy interface,
+** the sqlite3_step() API always returns a generic error code,
+** [SQLITE_ERROR], following any error other than [SQLITE_BUSY]
+** and [SQLITE_MISUSE]. You must call [sqlite3_reset()] or
+** [sqlite3_finalize()] in order to find one of the specific
+** [SQLITE_ERROR | result codes] that better describes the error.
+** We admit that this is a goofy design. The problem has been fixed
+** with the "v2" interface. If you prepare all of your SQL statements
+** using either [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()] instead
+** of the legacy [sqlite3_prepare()] and [sqlite3_prepare16()], then the
+** more specific [SQLITE_ERROR | result codes] are returned directly
+** by sqlite3_step(). The use of the "v2" interface is recommended.
+*/
+/*IMPORT_C*/ int sqlite3_step(sqlite3_stmt*);
+
+/*
+** CAPI3REF: Number of columns in a result set {F13770}
+**
+** Return the number of values in the current row of the result set.
+**
+** {F13771} After a call to [sqlite3_step()] that returns [SQLITE_ROW],
+** this routine
+** will return the same value as the [sqlite3_column_count()] function.
+** {F13772}
+** After [sqlite3_step()] has returned an [SQLITE_DONE], [SQLITE_BUSY], or
+** a [SQLITE_ERROR | error code], or before [sqlite3_step()] has been
+** called on the [sqlite3_stmt | prepared statement] for the first time,
+** this routine returns zero.
+*/
+/*IMPORT_C*/ int sqlite3_data_count(sqlite3_stmt *pStmt);
+
+/*
+** CAPI3REF: Fundamental Datatypes {F10265}
+**
+** {F10266}Every value in SQLite has one of five fundamental datatypes:
+**
+**
+** - 64-bit signed integer
+**
- 64-bit IEEE floating point number
+**
- string
+**
- BLOB
+**
- NULL
+**
{END}
+**
+** These constants are codes for each of those types.
+**
+** Note that the SQLITE_TEXT constant was also used in SQLite version 2
+** for a completely different meaning. Software that links against both
+** SQLite version 2 and SQLite version 3 should use SQLITE3_TEXT not
+** SQLITE_TEXT.
+*/
+#define SQLITE_INTEGER 1
+#define SQLITE_FLOAT 2
+#define SQLITE_BLOB 4
+#define SQLITE_NULL 5
+#ifdef SQLITE_TEXT
+# undef SQLITE_TEXT
+#else
+# define SQLITE_TEXT 3
+#endif
+#define SQLITE3_TEXT 3
+
+/*
+** CAPI3REF: Results Values From A Query {F13800}
+**
+** These routines return information about
+** a single column of the current result row of a query. In every
+** case the first argument is a pointer to the
+** [sqlite3_stmt | SQL statement] that is being
+** evaluated (the [sqlite3_stmt*] that was returned from
+** [sqlite3_prepare_v2()] or one of its variants) and
+** the second argument is the index of the column for which information
+** should be returned. The left-most column of the result set
+** has an index of 0.
+**
+** If the SQL statement is not currently point to a valid row, or if the
+** the column index is out of range, the result is undefined.
+** These routines may only be called when the most recent call to
+** [sqlite3_step()] has returned [SQLITE_ROW] and neither
+** [sqlite3_reset()] nor [sqlite3_finalize()] has been call subsequently.
+** If any of these routines are called after [sqlite3_reset()] or
+** [sqlite3_finalize()] or after [sqlite3_step()] has returned
+** something other than [SQLITE_ROW], the results are undefined.
+** If [sqlite3_step()] or [sqlite3_reset()] or [sqlite3_finalize()]
+** are called from a different thread while any of these routines
+** are pending, then the results are undefined.
+**
+** The sqlite3_column_type() routine returns
+** [SQLITE_INTEGER | datatype code] for the initial data type
+** of the result column. The returned value is one of [SQLITE_INTEGER],
+** [SQLITE_FLOAT], [SQLITE_TEXT], [SQLITE_BLOB], or [SQLITE_NULL]. The value
+** returned by sqlite3_column_type() is only meaningful if no type
+** conversions have occurred as described below. After a type conversion,
+** the value returned by sqlite3_column_type() is undefined. Future
+** versions of SQLite may change the behavior of sqlite3_column_type()
+** following a type conversion.
+**
+** If the result is a BLOB or UTF-8 string then the sqlite3_column_bytes()
+** routine returns the number of bytes in that BLOB or string.
+** If the result is a UTF-16 string, then sqlite3_column_bytes() converts
+** the string to UTF-8 and then returns the number of bytes.
+** If the result is a numeric value then sqlite3_column_bytes() uses
+** [sqlite3_snprintf()] to convert that value to a UTF-8 string and returns
+** the number of bytes in that string.
+** The value returned does not include the zero terminator at the end
+** of the string. For clarity: the value returned is the number of
+** bytes in the string, not the number of characters.
+**
+** Strings returned by sqlite3_column_text() and sqlite3_column_text16(),
+** even zero-length strings, are always zero terminated. The return
+** value from sqlite3_column_blob() for a zero-length blob is an arbitrary
+** pointer, possibly even a NULL pointer.
+**
+** The sqlite3_column_bytes16() routine is similar to sqlite3_column_bytes()
+** but leaves the result in UTF-16 instead of UTF-8.
+** The zero terminator is not included in this count.
+**
+** These routines attempt to convert the value where appropriate. For
+** example, if the internal representation is FLOAT and a text result
+** is requested, [sqlite3_snprintf()] is used internally to do the conversion
+** automatically. The following table details the conversions that
+** are applied:
+**
+**
+**
+** Internal
Type | Requested
Type | Conversion
+**
+** |
|---|
| NULL | INTEGER | Result is 0
+** |
| NULL | FLOAT | Result is 0.0
+** |
| NULL | TEXT | Result is NULL pointer
+** |
| NULL | BLOB | Result is NULL pointer
+** |
| INTEGER | FLOAT | Convert from integer to float
+** |
| INTEGER | TEXT | ASCII rendering of the integer
+** |
| INTEGER | BLOB | Same as for INTEGER->TEXT
+** |
| FLOAT | INTEGER | Convert from float to integer
+** |
| FLOAT | TEXT | ASCII rendering of the float
+** |
| FLOAT | BLOB | Same as FLOAT->TEXT
+** |
| TEXT | INTEGER | Use atoi()
+** |
| TEXT | FLOAT | Use atof()
+** |
| TEXT | BLOB | No change
+** |
| BLOB | INTEGER | Convert to TEXT then use atoi()
+** |
| BLOB | FLOAT | Convert to TEXT then use atof()
+** |
| BLOB | TEXT | Add a zero terminator if needed
+** |
+**
+**
+** The table above makes reference to standard C library functions atoi()
+** and atof(). SQLite does not really use these functions. It has its
+** on equavalent internal routines. The atoi() and atof() names are
+** used in the table for brevity and because they are familiar to most
+** C programmers.
+**
+** Note that when type conversions occur, pointers returned by prior
+** calls to sqlite3_column_blob(), sqlite3_column_text(), and/or
+** sqlite3_column_text16() may be invalidated.
+** Type conversions and pointer invalidations might occur
+** in the following cases:
+**
+**
+** The initial content is a BLOB and sqlite3_column_text()
+** or sqlite3_column_text16() is called. A zero-terminator might
+** need to be added to the string.
The initial content is UTF-8 text and sqlite3_column_bytes16() or
+** sqlite3_column_text16() is called. The content must be converted
+** to UTF-16.
The initial content is UTF-16 text and sqlite3_column_bytes() or
+** sqlite3_column_text() is called. The content must be converted
+** to UTF-8.
+**
+** Conversions between UTF-16be and UTF-16le are always done in place and do
+** not invalidate a prior pointer, though of course the content of the buffer
+** that the prior pointer points to will have been modified. Other kinds
+** of conversion are done in place when it is possible, but sometime it is
+** not possible and in those cases prior pointers are invalidated.
+**
+** The safest and easiest to remember policy is to invoke these routines
+** in one of the following ways:
+**
+**
+** - sqlite3_column_text() followed by sqlite3_column_bytes()
+** - sqlite3_column_blob() followed by sqlite3_column_bytes()
+** - sqlite3_column_text16() followed by sqlite3_column_bytes16()
+**
+**
+** In other words, you should call sqlite3_column_text(), sqlite3_column_blob(),
+** or sqlite3_column_text16() first to force the result into the desired
+** format, then invoke sqlite3_column_bytes() or sqlite3_column_bytes16() to
+** find the size of the result. Do not mix call to sqlite3_column_text() or
+** sqlite3_column_blob() with calls to sqlite3_column_bytes16(). And do not
+** mix calls to sqlite3_column_text16() with calls to sqlite3_column_bytes().
+**
+** The pointers returned are valid until a type conversion occurs as
+** described above, or until [sqlite3_step()] or [sqlite3_reset()] or
+** [sqlite3_finalize()] is called. The memory space used to hold strings
+** and blobs is freed automatically. Do not pass the pointers returned
+** [sqlite3_column_blob()], [sqlite3_column_text()], etc. into
+** [sqlite3_free()].
+**
+** If a memory allocation error occurs during the evaluation of any
+** of these routines, a default value is returned. The default value
+** is either the integer 0, the floating point number 0.0, or a NULL
+** pointer. Subsequent calls to [sqlite3_errcode()] will return
+** [SQLITE_NOMEM].
+*/
+/*IMPORT_C*/ const void *sqlite3_column_blob(sqlite3_stmt*, int iCol);
+/*IMPORT_C*/ int sqlite3_column_bytes(sqlite3_stmt*, int iCol);
+/*IMPORT_C*/ int sqlite3_column_bytes16(sqlite3_stmt*, int iCol);
+/*IMPORT_C*/ double sqlite3_column_double(sqlite3_stmt*, int iCol);
+/*IMPORT_C*/ int sqlite3_column_int(sqlite3_stmt*, int iCol);
+/*IMPORT_C*/ sqlite3_int64 sqlite3_column_int64(sqlite3_stmt*, int iCol);
+/*IMPORT_C*/ const unsigned char *sqlite3_column_text(sqlite3_stmt*, int iCol);
+/*IMPORT_C*/ const void *sqlite3_column_text16(sqlite3_stmt*, int iCol);
+/*IMPORT_C*/ int sqlite3_column_type(sqlite3_stmt*, int iCol);
+/*IMPORT_C*/ sqlite3_value *sqlite3_column_value(sqlite3_stmt*, int iCol);
+
+/*
+** CAPI3REF: Destroy A Prepared Statement Object {F13300}
+**
+** The sqlite3_finalize() function is called to delete a
+** [sqlite3_stmt | compiled SQL statement]. If the statement was
+** executed successfully, or not executed at all, then SQLITE_OK is returned.
+** If execution of the statement failed then an
+** [SQLITE_ERROR | error code] or [SQLITE_IOERR_READ | extended error code]
+** is returned.
+**
+** This routine can be called at any point during the execution of the
+** [sqlite3_stmt | virtual machine]. If the virtual machine has not
+** completed execution when this routine is called, that is like
+** encountering an error or an interrupt. (See [sqlite3_interrupt()].)
+** Incomplete updates may be rolled back and transactions cancelled,
+** depending on the circumstances, and the
+** [SQLITE_ERROR | result code] returned will be [SQLITE_ABORT].
+*/
+/*IMPORT_C*/ int sqlite3_finalize(sqlite3_stmt *pStmt);
+
+/*
+** CAPI3REF: Reset A Prepared Statement Object {F13330}
+**
+** The sqlite3_reset() function is called to reset a
+** [sqlite3_stmt | compiled SQL statement] object.
+** back to its initial state, ready to be re-executed.
+** Any SQL statement variables that had values bound to them using
+** the [sqlite3_bind_blob | sqlite3_bind_*() API] retain their values.
+** Use [sqlite3_clear_bindings()] to reset the bindings.
+*/
+/*IMPORT_C*/ int sqlite3_reset(sqlite3_stmt *pStmt);
+
+/*
+** CAPI3REF: Create Or Redefine SQL Functions {F16100}
+**
+** The following two functions are used to add SQL functions or aggregates
+** or to redefine the behavior of existing SQL functions or aggregates. The
+** difference only between the two is that the second parameter, the
+** name of the (scalar) function or aggregate, is encoded in UTF-8 for
+** sqlite3_create_function() and UTF-16 for sqlite3_create_function16().
+**
+** The first argument is the [sqlite3 | database handle] that holds the
+** SQL function or aggregate is to be added or redefined. If a single
+** program uses more than one database handle internally, then SQL
+** functions or aggregates must be added individually to each database
+** handle with which they will be used.
+**
+** The second parameter is the name of the SQL function to be created
+** or redefined.
+** The length of the name is limited to 255 bytes, exclusive of the
+** zero-terminator. Note that the name length limit is in bytes, not
+** characters. Any attempt to create a function with a longer name
+** will result in an SQLITE_ERROR error.
+**
+** The third parameter is the number of arguments that the SQL function or
+** aggregate takes. If this parameter is negative, then the SQL function or
+** aggregate may take any number of arguments.
+**
+** The fourth parameter, eTextRep, specifies what
+** [SQLITE_UTF8 | text encoding] this SQL function prefers for
+** its parameters. Any SQL function implementation should be able to work
+** work with UTF-8, UTF-16le, or UTF-16be. But some implementations may be
+** more efficient with one encoding than another. It is allowed to
+** invoke sqlite3_create_function() or sqlite3_create_function16() multiple
+** times with the same function but with different values of eTextRep.
+** When multiple implementations of the same function are available, SQLite
+** will pick the one that involves the least amount of data conversion.
+** If there is only a single implementation which does not care what
+** text encoding is used, then the fourth argument should be
+** [SQLITE_ANY].
+**
+** The fifth parameter is an arbitrary pointer. The implementation
+** of the function can gain access to this pointer using
+** [sqlite3_user_data()].
+**
+** The seventh, eighth and ninth parameters, xFunc, xStep and xFinal, are
+** pointers to C-language functions that implement the SQL
+** function or aggregate. A scalar SQL function requires an implementation of
+** the xFunc callback only, NULL pointers should be passed as the xStep
+** and xFinal parameters. An aggregate SQL function requires an implementation
+** of xStep and xFinal and NULL should be passed for xFunc. To delete an
+** existing SQL function or aggregate, pass NULL for all three function
+** callback.
+**
+** It is permitted to register multiple implementations of the same
+** functions with the same name but with either differing numbers of
+** arguments or differing perferred text encodings. SQLite will use
+** the implementation most closely matches the way in which the
+** SQL function is used.
+*/
+/*IMPORT_C*/ int sqlite3_create_function(
+ sqlite3 *,
+ const char *zFunctionName,
+ int nArg,
+ int eTextRep,
+ void*,
+ void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
+ void (*xStep)(sqlite3_context*,int,sqlite3_value**),
+ void (*xFinal)(sqlite3_context*)
+);
+/*IMPORT_C*/ int sqlite3_create_function16(
+ sqlite3*,
+ const void *zFunctionName,
+ int nArg,
+ int eTextRep,
+ void*,
+ void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
+ void (*xStep)(sqlite3_context*,int,sqlite3_value**),
+ void (*xFinal)(sqlite3_context*)
+);
+
+/*
+** CAPI3REF: Text Encodings {F10267}
+**
+** These constant define integer codes that represent the various
+** text encodings supported by SQLite.
+*/
+#define SQLITE_UTF8 1
+#define SQLITE_UTF16LE 2
+#define SQLITE_UTF16BE 3
+#define SQLITE_UTF16 4 /* Use native byte order */
+#define SQLITE_ANY 5 /* sqlite3_create_function only */
+#define SQLITE_UTF16_ALIGNED 8 /* sqlite3_create_collation only */
+
+/*
+** CAPI3REF: Obsolete Functions
+**
+** These functions are all now obsolete. In order to maintain
+** backwards compatibility with older code, we continue to support
+** these functions. However, new development projects should avoid
+** the use of these functions. To help encourage people to avoid
+** using these functions, we are not going to tell you want they do.
+*/
+/*IMPORT_C*/ int sqlite3_aggregate_count(sqlite3_context*);
+/*IMPORT_C*/ int sqlite3_expired(sqlite3_stmt*);
+/*IMPORT_C*/ int sqlite3_transfer_bindings(sqlite3_stmt*, sqlite3_stmt*);
+/*IMPORT_C*/ int sqlite3_global_recover(void);
+/*IMPORT_C*/ void sqlite3_thread_cleanup(void);
+/*IMPORT_C*/ int sqlite3_memory_alarm(void(*)(void*,sqlite3_int64,int),void*,sqlite3_int64);
+
+/*
+** CAPI3REF: Obtaining SQL Function Parameter Values {F15100}
+**
+** The C-language implementation of SQL functions and aggregates uses
+** this set of interface routines to access the parameter values on
+** the function or aggregate.
+**
+** The xFunc (for scalar functions) or xStep (for aggregates) parameters
+** to [sqlite3_create_function()] and [sqlite3_create_function16()]
+** define callbacks that implement the SQL functions and aggregates.
+** The 4th parameter to these callbacks is an array of pointers to
+** [sqlite3_value] objects. There is one [sqlite3_value] object for
+** each parameter to the SQL function. These routines are used to
+** extract values from the [sqlite3_value] objects.
+**
+** These routines work just like the corresponding
+** [sqlite3_column_blob | sqlite3_column_* routines] except that
+** these routines take a single [sqlite3_value*] pointer instead
+** of an [sqlite3_stmt*] pointer and an integer column number.
+**
+** The sqlite3_value_text16() interface extracts a UTF16 string
+** in the native byte-order of the host machine. The
+** sqlite3_value_text16be() and sqlite3_value_text16le() interfaces
+** extract UTF16 strings as big-endian and little-endian respectively.
+**
+** The sqlite3_value_numeric_type() interface attempts to apply
+** numeric affinity to the value. This means that an attempt is
+** made to convert the value to an integer or floating point. If
+** such a conversion is possible without loss of information (in other
+** words if the value is a string that looks like a number)
+** then the conversion is done. Otherwise no conversion occurs. The
+** [SQLITE_INTEGER | datatype] after conversion is returned.
+**
+** Please pay particular attention to the fact that the pointer that
+** is returned from [sqlite3_value_blob()], [sqlite3_value_text()], or
+** [sqlite3_value_text16()] can be invalidated by a subsequent call to
+** [sqlite3_value_bytes()], [sqlite3_value_bytes16()], [sqlite3_value_text()],
+** or [sqlite3_value_text16()].
+**
+** These routines must be called from the same thread as
+** the SQL function that supplied the sqlite3_value* parameters.
+** Or, if the sqlite3_value* argument comes from the [sqlite3_column_value()]
+** interface, then these routines should be called from the same thread
+** that ran [sqlite3_column_value()].
+**
+*/
+/*IMPORT_C*/ const void *sqlite3_value_blob(sqlite3_value*);
+/*IMPORT_C*/ int sqlite3_value_bytes(sqlite3_value*);
+/*IMPORT_C*/ int sqlite3_value_bytes16(sqlite3_value*);
+/*IMPORT_C*/ double sqlite3_value_double(sqlite3_value*);
+/*IMPORT_C*/ int sqlite3_value_int(sqlite3_value*);
+/*IMPORT_C*/ sqlite3_int64 sqlite3_value_int64(sqlite3_value*);
+/*IMPORT_C*/ const unsigned char *sqlite3_value_text(sqlite3_value*);
+/*IMPORT_C*/ const void *sqlite3_value_text16(sqlite3_value*);
+/*IMPORT_C*/ const void *sqlite3_value_text16le(sqlite3_value*);
+/*IMPORT_C*/ const void *sqlite3_value_text16be(sqlite3_value*);
+/*IMPORT_C*/ int sqlite3_value_type(sqlite3_value*);
+/*IMPORT_C*/ int sqlite3_value_numeric_type(sqlite3_value*);
+
+/*
+** CAPI3REF: Obtain Aggregate Function Context {F16210}
+**
+** The implementation of aggregate SQL functions use this routine to allocate
+** a structure for storing their state.
+** {F16211} The first time the sqlite3_aggregate_context() routine is
+** is called for a particular aggregate, SQLite allocates nBytes of memory
+** zeros that memory, and returns a pointer to it.
+** {F16212} On second and subsequent calls to sqlite3_aggregate_context()
+** for the same aggregate function index, the same buffer is returned. {END}
+** The implementation
+** of the aggregate can use the returned buffer to accumulate data.
+**
+** {F16213} SQLite automatically frees the allocated buffer when the aggregate
+** query concludes. {END}
+**
+** The first parameter should be a copy of the
+** [sqlite3_context | SQL function context] that is the first
+** parameter to the callback routine that implements the aggregate
+** function.
+**
+** This routine must be called from the same thread in which
+** the aggregate SQL function is running.
+*/
+/*IMPORT_C*/ void *sqlite3_aggregate_context(sqlite3_context*, int nBytes);
+
+/*
+** CAPI3REF: User Data For Functions {F16240}
+**
+** {F16241} The sqlite3_user_data() interface returns a copy of
+** the pointer that was the pUserData parameter (the 5th parameter)
+** of the the [sqlite3_create_function()]
+** and [sqlite3_create_function16()] routines that originally
+** registered the application defined function. {END}
+**
+** {U16243} This routine must be called from the same thread in which
+** the application-defined function is running.
+*/
+/*IMPORT_C*/ void *sqlite3_user_data(sqlite3_context*);
+
+/*
+** CAPI3REF: Function Auxiliary Data {F16270}
+**
+** The following two functions may be used by scalar SQL functions to
+** associate meta-data with argument values. If the same value is passed to
+** multiple invocations of the same SQL function during query execution, under
+** some circumstances the associated meta-data may be preserved. This may
+** be used, for example, to add a regular-expression matching scalar
+** function. The compiled version of the regular expression is stored as
+** meta-data associated with the SQL value passed as the regular expression
+** pattern. The compiled regular expression can be reused on multiple
+** invocations of the same function so that the original pattern string
+** does not need to be recompiled on each invocation.
+**
+** {F16271}
+** The sqlite3_get_auxdata() interface returns a pointer to the meta-data
+** associated by the sqlite3_set_auxdata() function with the Nth argument
+** value to the application-defined function.
+** {F16272} If no meta-data has been ever been set for the Nth
+** argument of the function, or if the cooresponding function parameter
+** has changed since the meta-data was set, then sqlite3_get_auxdata()
+** returns a NULL pointer.
+**
+** {F16275} The sqlite3_set_auxdata() interface saves the meta-data
+** pointed to by its 3rd parameter as the meta-data for the N-th
+** argument of the application-defined function. {END} Subsequent
+** calls to sqlite3_get_auxdata() might return this data, if it has
+** not been destroyed.
+** {F16277} If it is not NULL, SQLite will invoke the destructor
+** function given by the 4th parameter to sqlite3_set_auxdata() on
+** the meta-data when the corresponding function parameter changes
+** or when the SQL statement completes, whichever comes first. {END}
+**
+** In practice, meta-data is preserved between function calls for
+** expressions that are constant at compile time. This includes literal
+** values and SQL variables.
+**
+** These routines must be called from the same thread in which
+** the SQL function is running.
+*/
+/*IMPORT_C*/ void *sqlite3_get_auxdata(sqlite3_context*, int N);
+/*IMPORT_C*/ void sqlite3_set_auxdata(sqlite3_context*, int N, void*, void (*)(void*));
+
+
+/*
+** CAPI3REF: Constants Defining Special Destructor Behavior {F10280}
+**
+** These are special value for the destructor that is passed in as the
+** final argument to routines like [sqlite3_result_blob()]. If the destructor
+** argument is SQLITE_STATIC, it means that the content pointer is constant
+** and will never change. It does not need to be destroyed. The
+** SQLITE_TRANSIENT value means that the content will likely change in
+** the near future and that SQLite should make its own private copy of
+** the content before returning.
+**
+** The typedef is necessary to work around problems in certain
+** C++ compilers. See ticket #2191.
+*/
+typedef void (*sqlite3_destructor_type)(void*);
+#define SQLITE_STATIC ((sqlite3_destructor_type)0)
+#define SQLITE_TRANSIENT ((sqlite3_destructor_type)-1)
+
+/*
+** CAPI3REF: Setting The Result Of An SQL Function {F16400}
+**
+** These routines are used by the xFunc or xFinal callbacks that
+** implement SQL functions and aggregates. See
+** [sqlite3_create_function()] and [sqlite3_create_function16()]
+** for additional information.
+**
+** These functions work very much like the
+** [sqlite3_bind_blob | sqlite3_bind_*] family of functions used
+** to bind values to host parameters in prepared statements.
+** Refer to the
+** [sqlite3_bind_blob | sqlite3_bind_* documentation] for
+** additional information.
+**
+** {F16402} The sqlite3_result_blob() interface sets the result from
+** an application defined function to be the BLOB whose content is pointed
+** to by the second parameter and which is N bytes long where N is the
+** third parameter.
+** {F16403} The sqlite3_result_zeroblob() inerfaces set the result of
+** the application defined function to be a BLOB containing all zero
+** bytes and N bytes in size, where N is the value of the 2nd parameter.
+**
+** {F16407} The sqlite3_result_double() interface sets the result from
+** an application defined function to be a floating point value specified
+** by its 2nd argument.
+**
+** {F16409} The sqlite3_result_error() and sqlite3_result_error16() functions
+** cause the implemented SQL function to throw an exception.
+** {F16411} SQLite uses the string pointed to by the
+** 2nd parameter of sqlite3_result_error() or sqlite3_result_error16()
+** as the text of an error message. {F16412} SQLite interprets the error
+** message string from sqlite3_result_error() as UTF8. {F16413} SQLite
+** interprets the string from sqlite3_result_error16() as UTF16 in native
+** byte order. {F16414} If the third parameter to sqlite3_result_error()
+** or sqlite3_result_error16() is negative then SQLite takes as the error
+** message all text up through the first zero character.
+** {F16415} If the third parameter to sqlite3_result_error() or
+** sqlite3_result_error16() is non-negative then SQLite takes that many
+** bytes (not characters) from the 2nd parameter as the error message.
+** {F16417} The sqlite3_result_error() and sqlite3_result_error16()
+** routines make a copy private copy of the error message text before
+** they return. {END} Hence, the calling function can deallocate or
+** modify the text after they return without harm.
+**
+** {F16421} The sqlite3_result_toobig() interface causes SQLite
+** to throw an error indicating that a string or BLOB is to long
+** to represent. {F16422} The sqlite3_result_nomem() interface
+** causes SQLite to throw an exception indicating that the a
+** memory allocation failed.
+**
+** {F16431} The sqlite3_result_int() interface sets the return value
+** of the application-defined function to be the 32-bit signed integer
+** value given in the 2nd argument.
+** {F16432} The sqlite3_result_int64() interface sets the return value
+** of the application-defined function to be the 64-bit signed integer
+** value given in the 2nd argument.
+**
+** {F16437} The sqlite3_result_null() interface sets the return value
+** of the application-defined function to be NULL.
+**
+** {F16441} The sqlite3_result_text(), sqlite3_result_text16(),
+** sqlite3_result_text16le(), and sqlite3_result_text16be() interfaces
+** set the return value of the application-defined function to be
+** a text string which is represented as UTF-8, UTF-16 native byte order,
+** UTF-16 little endian, or UTF-16 big endian, respectively.
+** {F16442} SQLite takes the text result from the application from
+** the 2nd parameter of the sqlite3_result_text* interfaces.
+** {F16444} If the 3rd parameter to the sqlite3_result_text* interfaces
+** is negative, then SQLite takes result text from the 2nd parameter
+** through the first zero character.
+** {F16447} If the 3rd parameter to the sqlite3_result_text* interfaces
+** is non-negative, then as many bytes (not characters) of the text
+** pointed to by the 2nd parameter are taken as the application-defined
+** function result.
+** {F16451} If the 4th parameter to the sqlite3_result_text* interfaces
+** or sqlite3_result_blob is a non-NULL pointer, then SQLite calls that
+** function as the destructor on the text or blob result when it has
+** finished using that result.
+** {F16453} If the 4th parameter to the sqlite3_result_text* interfaces
+** or sqlite3_result_blob is the special constant SQLITE_STATIC, then
+** SQLite assumes that the text or blob result is constant space and
+** does not copy the space or call a destructor when it has
+** finished using that result.
+** {F16454} If the 4th parameter to the sqlite3_result_text* interfaces
+** or sqlite3_result_blob is the special constant SQLITE_TRANSIENT
+** then SQLite makes a copy of the result into space obtained from
+** from [sqlite3_malloc()] before it returns.
+**
+** {F16461} The sqlite3_result_value() interface sets the result of
+** the application-defined function to be a copy the [sqlite3_value]
+** object specified by the 2nd parameter. {F16463} The
+** sqlite3_result_value() interface makes a copy of the [sqlite3_value]
+** so that [sqlite3_value] specified in the parameter may change or
+** be deallocated after sqlite3_result_value() returns without harm.
+**
+** {U16491} These routines are called from within the different thread
+** than the one containing the application-defined function that recieved
+** the [sqlite3_context] pointer, the results are undefined.
+*/
+/*IMPORT_C*/ void sqlite3_result_blob(sqlite3_context*, const void*, int, void(*)(void*));
+/*IMPORT_C*/ void sqlite3_result_double(sqlite3_context*, double);
+/*IMPORT_C*/ void sqlite3_result_error(sqlite3_context*, const char*, int);
+/*IMPORT_C*/ void sqlite3_result_error16(sqlite3_context*, const void*, int);
+/*IMPORT_C*/ void sqlite3_result_error_toobig(sqlite3_context*);
+/*IMPORT_C*/ void sqlite3_result_error_nomem(sqlite3_context*);
+/*IMPORT_C*/ void sqlite3_result_int(sqlite3_context*, int);
+/*IMPORT_C*/ void sqlite3_result_int64(sqlite3_context*, sqlite3_int64);
+/*IMPORT_C*/ void sqlite3_result_null(sqlite3_context*);
+/*IMPORT_C*/ void sqlite3_result_text(sqlite3_context*, const char*, int, void(*)(void*));
+/*IMPORT_C*/ void sqlite3_result_text16(sqlite3_context*, const void*, int, void(*)(void*));
+/*IMPORT_C*/ void sqlite3_result_text16le(sqlite3_context*, const void*, int,void(*)(void*));
+/*IMPORT_C*/ void sqlite3_result_text16be(sqlite3_context*, const void*, int,void(*)(void*));
+/*IMPORT_C*/ void sqlite3_result_value(sqlite3_context*, sqlite3_value*);
+/*IMPORT_C*/ void sqlite3_result_zeroblob(sqlite3_context*, int n);
+
+/*
+** CAPI3REF: Define New Collating Sequences {F16600}
+**
+** {F16601}
+** These functions are used to add new collation sequences to the
+** [sqlite3*] handle specified as the first argument.
+**
+** {F16602}
+** The name of the new collation sequence is specified as a UTF-8 string
+** for sqlite3_create_collation() and sqlite3_create_collation_v2()
+** and a UTF-16 string for sqlite3_create_collation16(). {F16603} In all cases
+** the name is passed as the second function argument.
+**
+** {F16604}
+** The third argument may be one of the constants [SQLITE_UTF8],
+** [SQLITE_UTF16LE] or [SQLITE_UTF16BE], indicating that the user-supplied
+** routine expects to be passed pointers to strings encoded using UTF-8,
+** UTF-16 little-endian or UTF-16 big-endian respectively. {F16605} The
+** third argument might also be [SQLITE_UTF16_ALIGNED] to indicate that
+** the routine expects pointers to 16-bit word aligned strings
+** of UTF16 in the native byte order of the host computer.
+**
+** {F16607}
+** A pointer to the user supplied routine must be passed as the fifth
+** argument. {F16609} If it is NULL, this is the same as deleting the collation
+** sequence (so that SQLite cannot call it anymore).
+** {F16611} Each time the application
+** supplied function is invoked, it is passed a copy of the void* passed as
+** the fourth argument to sqlite3_create_collation() or
+** sqlite3_create_collation16() as its first parameter.
+**
+** {F16612}
+** The remaining arguments to the application-supplied routine are two strings,
+** each represented by a [length, data] pair and encoded in the encoding
+** that was passed as the third argument when the collation sequence was
+** registered. {END} The application defined collation routine should
+** return negative, zero or positive if
+** the first string is less than, equal to, or greater than the second
+** string. i.e. (STRING1 - STRING2).
+**
+** {F16615}
+** The sqlite3_create_collation_v2() works like sqlite3_create_collation()
+** excapt that it takes an extra argument which is a destructor for
+** the collation. {F16617} The destructor is called when the collation is
+** destroyed and is passed a copy of the fourth parameter void* pointer
+** of the sqlite3_create_collation_v2().
+** {F16618} Collations are destroyed when
+** they are overridden by later calls to the collation creation functions
+** or when the [sqlite3*] database handle is closed using [sqlite3_close()].
+*/
+/*IMPORT_C*/ int sqlite3_create_collation(
+ sqlite3*,
+ const char *zName,
+ int eTextRep,
+ void*,
+ int(*xCompare)(void*,int,const void*,int,const void*)
+);
+/*IMPORT_C*/ int sqlite3_create_collation_v2(
+ sqlite3*,
+ const char *zName,
+ int eTextRep,
+ void*,
+ int(*xCompare)(void*,int,const void*,int,const void*),
+ void(*xDestroy)(void*)
+);
+/*IMPORT_C*/ int sqlite3_create_collation16(
+ sqlite3*,
+ const char *zName,
+ int eTextRep,
+ void*,
+ int(*xCompare)(void*,int,const void*,int,const void*)
+);
+
+/*
+** CAPI3REF: Collation Needed Callbacks {F16700}
+**
+** {F16701}
+** To avoid having to register all collation sequences before a database
+** can be used, a single callback function may be registered with the
+** database handle to be called whenever an undefined collation sequence is
+** required.
+**
+** {F16702}
+** If the function is registered using the sqlite3_collation_needed() API,
+** then it is passed the names of undefined collation sequences as strings
+** encoded in UTF-8. {F16703} If sqlite3_collation_needed16() is used, the names
+** are passed as UTF-16 in machine native byte order. {F16704} A call to either
+** function replaces any existing callback.
+**
+** {F16705} When the callback is invoked, the first argument passed is a copy
+** of the second argument to sqlite3_collation_needed() or
+** sqlite3_collation_needed16(). {F16706} The second argument is the database
+** handle. {F16707} The third argument is one of [SQLITE_UTF8],
+** [SQLITE_UTF16BE], or [SQLITE_UTF16LE], indicating the most
+** desirable form of the collation sequence function required.
+** {F16708} The fourth parameter is the name of the
+** required collation sequence. {END}
+**
+** The callback function should register the desired collation using
+** [sqlite3_create_collation()], [sqlite3_create_collation16()], or
+** [sqlite3_create_collation_v2()].
+*/
+/*IMPORT_C*/ int sqlite3_collation_needed(
+ sqlite3*,
+ void*,
+ void(*)(void*,sqlite3*,int eTextRep,const char*)
+);
+/*IMPORT_C*/ int sqlite3_collation_needed16(
+ sqlite3*,
+ void*,
+ void(*)(void*,sqlite3*,int eTextRep,const void*)
+);
+
+/*
+** Specify the key for an encrypted database. This routine should be
+** called right after sqlite3_open().
+**
+** The code to implement this API is not available in the public release
+** of SQLite.
+*/
+/*IMPORT_C*/ int sqlite3_key(
+ sqlite3 *db, /* Database to be rekeyed */
+ const void *pKey, int nKey /* The key */
+);
+
+/*
+** Change the key on an open database. If the current database is not
+** encrypted, this routine will encrypt it. If pNew==0 or nNew==0, the
+** database is decrypted.
+**
+** The code to implement this API is not available in the public release
+** of SQLite.
+*/
+/*IMPORT_C*/ int sqlite3_rekey(
+ sqlite3 *db, /* Database to be rekeyed */
+ const void *pKey, int nKey /* The new key */
+);
+
+/*
+** CAPI3REF: Suspend Execution For A Short Time {F10530}
+**
+** {F10531} The sqlite3_sleep() function
+** causes the current thread to suspend execution
+** for at least a number of milliseconds specified in its parameter.
+**
+** {F10532} If the operating system does not support sleep requests with
+** millisecond time resolution, then the time will be rounded up to
+** the nearest second. {F10533} The number of milliseconds of sleep actually
+** requested from the operating system is returned.
+**
+** {F10534} SQLite implements this interface by calling the xSleep()
+** method of the default [sqlite3_vfs] object. {END}
+*/
+/*IMPORT_C*/ int sqlite3_sleep(int);
+
+/*
+** CAPI3REF: Name Of The Folder Holding Temporary Files {F10310}
+**
+** If this global variable is made to point to a string which is
+** the name of a folder (a.ka. directory), then all temporary files
+** created by SQLite will be placed in that directory. If this variable
+** is NULL pointer, then SQLite does a search for an appropriate temporary
+** file directory.
+**
+** It is not safe to modify this variable once a database connection
+** has been opened. It is intended that this variable be set once
+** as part of process initialization and before any SQLite interface
+** routines have been call and remain unchanged thereafter.
+*/
+SQLITE_EXTERN char *sqlite3_temp_directory;
+
+/*
+** CAPI3REF: Test To See If The Database Is In Auto-Commit Mode {F12930}
+**
+** {F12931} The sqlite3_get_autocommit() interfaces returns non-zero or
+** zero if the given database connection is or is not in autocommit mode,
+** respectively. {F12932} Autocommit mode is on
+** by default. {F12933} Autocommit mode is disabled by a BEGIN statement.
+** {F12934} Autocommit mode is reenabled by a COMMIT or ROLLBACK. {END}
+**
+** If certain kinds of errors occur on a statement within a multi-statement
+** transactions (errors including [SQLITE_FULL], [SQLITE_IOERR],
+** [SQLITE_NOMEM], [SQLITE_BUSY], and [SQLITE_INTERRUPT]) then the
+** transaction might be rolled back automatically. {F12935} The only way to
+** find out if SQLite automatically rolled back the transaction after
+** an error is to use this function. {END}
+**
+** {U12936} If another thread changes the autocommit status of the database
+** connection while this routine is running, then the return value
+** is undefined. {END}
+*/
+/*IMPORT_C*/ int sqlite3_get_autocommit(sqlite3*);
+
+/*
+** CAPI3REF: Find The Database Handle Of A Prepared Statement {F13120}
+**
+** {F13121} The sqlite3_db_handle interface
+** returns the [sqlite3*] database handle to which a
+** [sqlite3_stmt | prepared statement] belongs.
+** {F13122} the database handle returned by sqlite3_db_handle
+** is the same database handle that was
+** the first argument to the [sqlite3_prepare_v2()] or its variants
+** that was used to create the statement in the first place.
+*/
+/*IMPORT_C*/ sqlite3 *sqlite3_db_handle(sqlite3_stmt*);
+
+
+/*
+** CAPI3REF: Commit And Rollback Notification Callbacks {F12950}
+**
+** {F12951} The sqlite3_commit_hook() interface registers a callback
+** function to be invoked whenever a transaction is committed.
+** {F12952} Any callback set by a previous call to sqlite3_commit_hook()
+** for the same database connection is overridden.
+** {F12953} The sqlite3_rollback_hook() interface registers a callback
+** function to be invoked whenever a transaction is committed.
+** {F12954} Any callback set by a previous call to sqlite3_commit_hook()
+** for the same database connection is overridden.
+** {F12956} The pArg argument is passed through
+** to the callback. {F12957} If the callback on a commit hook function
+** returns non-zero, then the commit is converted into a rollback.
+**
+** {F12958} If another function was previously registered, its
+** pArg value is returned. Otherwise NULL is returned.
+**
+** {F12959} Registering a NULL function disables the callback.
+**
+** {F12961} For the purposes of this API, a transaction is said to have been
+** rolled back if an explicit "ROLLBACK" statement is executed, or
+** an error or constraint causes an implicit rollback to occur.
+** {F12962} The rollback callback is not invoked if a transaction is
+** automatically rolled back because the database connection is closed.
+** {F12964} The rollback callback is not invoked if a transaction is
+** rolled back because a commit callback returned non-zero.
+** Check on this {END}
+**
+** These are experimental interfaces and are subject to change.
+*/
+/*IMPORT_C*/ void *sqlite3_commit_hook(sqlite3*, int(*)(void*), void*);
+/*IMPORT_C*/ void *sqlite3_rollback_hook(sqlite3*, void(*)(void *), void*);
+
+/*
+** CAPI3REF: Data Change Notification Callbacks {F12970}
+**
+** {F12971} The sqlite3_update_hook() interface
+** registers a callback function with the database connection identified by the
+** first argument to be invoked whenever a row is updated, inserted or deleted.
+** {F12972} Any callback set by a previous call to this function for the same
+** database connection is overridden.
+**
+** {F12974} The second argument is a pointer to the function to invoke when a
+** row is updated, inserted or deleted.
+** {F12976} The first argument to the callback is
+** a copy of the third argument to sqlite3_update_hook().
+** {F12977} The second callback
+** argument is one of [SQLITE_INSERT], [SQLITE_DELETE] or [SQLITE_UPDATE],
+** depending on the operation that caused the callback to be invoked.
+** {F12978} The third and
+** fourth arguments to the callback contain pointers to the database and
+** table name containing the affected row.
+** {F12979} The final callback parameter is
+** the rowid of the row.
+** {F12981} In the case of an update, this is the rowid after
+** the update takes place.
+**
+** {F12983} The update hook is not invoked when internal system tables are
+** modified (i.e. sqlite_master and sqlite_sequence).
+**
+** {F12984} If another function was previously registered, its pArg value
+** is returned. {F12985} Otherwise NULL is returned.
+*/
+/*IMPORT_C*/ void *sqlite3_update_hook(
+ sqlite3*,
+ void(*)(void *,int ,char const *,char const *,sqlite3_int64),
+ void*
+);
+
+/*
+** CAPI3REF: Enable Or Disable Shared Pager Cache {F10330}
+**
+** {F10331}
+** This routine enables or disables the sharing of the database cache
+** and schema data structures between connections to the same database.
+** {F10332}
+** Sharing is enabled if the argument is true and disabled if the argument
+** is false.
+**
+** {F10333} Cache sharing is enabled and disabled
+** for an entire process. {END} This is a change as of SQLite version 3.5.0.
+** In prior versions of SQLite, sharing was
+** enabled or disabled for each thread separately.
+**
+** {F10334}
+** The cache sharing mode set by this interface effects all subsequent
+** calls to [sqlite3_open()], [sqlite3_open_v2()], and [sqlite3_open16()].
+** {F10335} Existing database connections continue use the sharing mode
+** that was in effect at the time they were opened. {END}
+**
+** Virtual tables cannot be used with a shared cache. {F10336} When shared
+** cache is enabled, the [sqlite3_create_module()] API used to register
+** virtual tables will always return an error. {END}
+**
+** {F10337} This routine returns [SQLITE_OK] if shared cache was
+** enabled or disabled successfully. {F10338} An [SQLITE_ERROR | error code]
+** is returned otherwise. {END}
+**
+** {F10339} Shared cache is disabled by default. {END} But this might change in
+** future releases of SQLite. Applications that care about shared
+** cache setting should set it explicitly.
+*/
+/*IMPORT_C*/ int sqlite3_enable_shared_cache(int);
+
+/*
+** CAPI3REF: Attempt To Free Heap Memory {F17340}
+**
+** {F17341} The sqlite3_release_memory() interface attempts to
+** free N bytes of heap memory by deallocating non-essential memory
+** allocations held by the database labrary. {END} Memory used
+** to cache database pages to improve performance is an example of
+** non-essential memory. {F16342} sqlite3_release_memory() returns
+** the number of bytes actually freed, which might be more or less
+** than the amount requested.
+*/
+/*IMPORT_C*/ int sqlite3_release_memory(int);
+
+/*
+** CAPI3REF: Impose A Limit On Heap Size {F17350}
+**
+** {F16351} The sqlite3_soft_heap_limit() interface
+** places a "soft" limit on the amount of heap memory that may be allocated
+** by SQLite. {F16352} If an internal allocation is requested
+** that would exceed the soft heap limit, [sqlite3_release_memory()] is
+** invoked one or more times to free up some space before the allocation
+** is made. {END}
+**
+** {F16353} The limit is called "soft", because if
+** [sqlite3_release_memory()] cannot
+** free sufficient memory to prevent the limit from being exceeded,
+** the memory is allocated anyway and the current operation proceeds.
+**
+** {F16354}
+** A negative or zero value for N means that there is no soft heap limit and
+** [sqlite3_release_memory()] will only be called when memory is exhausted.
+** {F16355} The default value for the soft heap limit is zero.
+**
+** SQLite makes a best effort to honor the soft heap limit.
+** {F16356} But if the soft heap limit cannot honored, execution will
+** continue without error or notification. {END} This is why the limit is
+** called a "soft" limit. It is advisory only.
+**
+** Prior to SQLite version 3.5.0, this routine only constrained the memory
+** allocated by a single thread - the same thread in which this routine
+** runs. Beginning with SQLite version 3.5.0, the soft heap limit is
+** applied to all threads. {F16357} The value specified for the soft heap limit
+** is an upper bound on the total memory allocation for all threads. {END} In
+** version 3.5.0 there is no mechanism for limiting the heap usage for
+** individual threads.
+*/
+/*IMPORT_C*/ void sqlite3_soft_heap_limit(int);
+
+/*
+** CAPI3REF: Extract Metadata About A Column Of A Table {F12850}
+**
+** This routine
+** returns meta-data about a specific column of a specific database
+** table accessible using the connection handle passed as the first function
+** argument.
+**
+** The column is identified by the second, third and fourth parameters to
+** this function. The second parameter is either the name of the database
+** (i.e. "main", "temp" or an attached database) containing the specified
+** table or NULL. If it is NULL, then all attached databases are searched
+** for the table using the same algorithm as the database engine uses to
+** resolve unqualified table references.
+**
+** The third and fourth parameters to this function are the table and column
+** name of the desired column, respectively. Neither of these parameters
+** may be NULL.
+**
+** Meta information is returned by writing to the memory locations passed as
+** the 5th and subsequent parameters to this function. Any of these
+** arguments may be NULL, in which case the corresponding element of meta
+** information is ommitted.
+**
+**
+** Parameter Output Type Description
+** -----------------------------------
+**
+** 5th const char* Data type
+** 6th const char* Name of the default collation sequence
+** 7th int True if the column has a NOT NULL constraint
+** 8th int True if the column is part of the PRIMARY KEY
+** 9th int True if the column is AUTOINCREMENT
+**
+**
+**
+** The memory pointed to by the character pointers returned for the
+** declaration type and collation sequence is valid only until the next
+** call to any sqlite API function.
+**
+** If the specified table is actually a view, then an error is returned.
+**
+** If the specified column is "rowid", "oid" or "_rowid_" and an
+** INTEGER PRIMARY KEY column has been explicitly declared, then the output
+** parameters are set for the explicitly declared column. If there is no
+** explicitly declared IPK column, then the output parameters are set as
+** follows:
+**
+**
+** data type: "INTEGER"
+** collation sequence: "BINARY"
+** not null: 0
+** primary key: 1
+** auto increment: 0
+**
+**
+** This function may load one or more schemas from database files. If an
+** error occurs during this process, or if the requested table or column
+** cannot be found, an SQLITE error code is returned and an error message
+** left in the database handle (to be retrieved using sqlite3_errmsg()).
+**
+** This API is only available if the library was compiled with the
+** SQLITE_ENABLE_COLUMN_METADATA preprocessor symbol defined.
+*/
+/*IMPORT_C*/ int sqlite3_table_column_metadata(
+ sqlite3 *db, /* Connection handle */
+ const char *zDbName, /* Database name or NULL */
+ const char *zTableName, /* Table name */
+ const char *zColumnName, /* Column name */
+ char const **pzDataType, /* OUTPUT: Declared data type */
+ char const **pzCollSeq, /* OUTPUT: Collation sequence name */
+ int *pNotNull, /* OUTPUT: True if NOT NULL constraint exists */
+ int *pPrimaryKey, /* OUTPUT: True if column part of PK */
+ int *pAutoinc /* OUTPUT: True if column is auto-increment */
+);
+
+/*
+** CAPI3REF: Load An Extension {F12600}
+**
+** {F12601} The sqlite3_load_extension() interface
+** attempts to load an SQLite extension library contained in the file
+** zFile. {F12602} The entry point is zProc. {F12603} zProc may be 0
+** in which case the name of the entry point defaults
+** to "sqlite3_extension_init".
+**
+** {F12604} The sqlite3_load_extension() interface shall
+** return [SQLITE_OK] on success and [SQLITE_ERROR] if something goes wrong.
+**
+** {F12605}
+** If an error occurs and pzErrMsg is not 0, then the
+** sqlite3_load_extension() interface shall attempt to fill *pzErrMsg with
+** error message text stored in memory obtained from [sqlite3_malloc()].
+** {END} The calling function should free this memory
+** by calling [sqlite3_free()].
+**
+** {F12606}
+** Extension loading must be enabled using [sqlite3_enable_load_extension()]
+** prior to calling this API or an error will be returned.
+*/
+/*IMPORT_C*/ int sqlite3_load_extension(
+ sqlite3 *db, /* Load the extension into this database connection */
+ const char *zFile, /* Name of the shared library containing extension */
+ const char *zProc, /* Entry point. Derived from zFile if 0 */
+ char **pzErrMsg /* Put error message here if not 0 */
+);
+
+/*
+** CAPI3REF: Enable Or Disable Extension Loading {F12620}
+**
+** So as not to open security holes in older applications that are
+** unprepared to deal with extension loading, and as a means of disabling
+** extension loading while evaluating user-entered SQL, the following
+** API is provided to turn the [sqlite3_load_extension()] mechanism on and
+** off. {F12622} It is off by default. {END} See ticket #1863.
+**
+** {F12621} Call the sqlite3_enable_load_extension() routine
+** with onoff==1 to turn extension loading on
+** and call it with onoff==0 to turn it back off again. {END}
+*/
+/*IMPORT_C*/ int sqlite3_enable_load_extension(sqlite3 *db, int onoff);
+
+/*
+** CAPI3REF: Make Arrangements To Automatically Load An Extension {F12640}
+**
+** {F12641} This function
+** registers an extension entry point that is automatically invoked
+** whenever a new database connection is opened using
+** [sqlite3_open()], [sqlite3_open16()], or [sqlite3_open_v2()]. {END}
+**
+** This API can be invoked at program startup in order to register
+** one or more statically linked extensions that will be available
+** to all new database connections.
+**
+** {F12642} Duplicate extensions are detected so calling this routine multiple
+** times with the same extension is harmless.
+**
+** {F12643} This routine stores a pointer to the extension in an array
+** that is obtained from sqlite_malloc(). {END} If you run a memory leak
+** checker on your program and it reports a leak because of this
+** array, then invoke [sqlite3_reset_auto_extension()] prior
+** to shutdown to free the memory.
+**
+** {F12644} Automatic extensions apply across all threads. {END}
+**
+** This interface is experimental and is subject to change or
+** removal in future releases of SQLite.
+*/
+/*IMPORT_C*/ int sqlite3_auto_extension(void *xEntryPoint);
+
+
+/*
+** CAPI3REF: Reset Automatic Extension Loading {F12660}
+**
+** {F12661} This function disables all previously registered
+** automatic extensions. {END} This
+** routine undoes the effect of all prior [sqlite3_automatic_extension()]
+** calls.
+**
+** {F12662} This call disabled automatic extensions in all threads. {END}
+**
+** This interface is experimental and is subject to change or
+** removal in future releases of SQLite.
+*/
+/*IMPORT_C*/ void sqlite3_reset_auto_extension(void);
+
+
+/*
+****** EXPERIMENTAL - subject to change without notice **************
+**
+** The interface to the virtual-table mechanism is currently considered
+** to be experimental. The interface might change in incompatible ways.
+** If this is a problem for you, do not use the interface at this time.
+**
+** When the virtual-table mechanism stablizes, we will declare the
+** interface fixed, support it indefinitely, and remove this comment.
+*/
+
+/*
+** Structures used by the virtual table interface
+*/
+typedef struct sqlite3_vtab sqlite3_vtab;
+typedef struct sqlite3_index_info sqlite3_index_info;
+typedef struct sqlite3_vtab_cursor sqlite3_vtab_cursor;
+typedef struct sqlite3_module sqlite3_module;
+
+/*
+** A module is a class of virtual tables. Each module is defined
+** by an instance of the following structure. This structure consists
+** mostly of methods for the module.
+*/
+struct sqlite3_module {
+ int iVersion;
+ int (*xCreate)(sqlite3*, void *pAux,
+ int argc, const char *const*argv,
+ sqlite3_vtab **ppVTab, char**);
+ int (*xConnect)(sqlite3*, void *pAux,
+ int argc, const char *const*argv,
+ sqlite3_vtab **ppVTab, char**);
+ int (*xBestIndex)(sqlite3_vtab *pVTab, sqlite3_index_info*);
+ int (*xDisconnect)(sqlite3_vtab *pVTab);
+ int (*xDestroy)(sqlite3_vtab *pVTab);
+ int (*xOpen)(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor);
+ int (*xClose)(sqlite3_vtab_cursor*);
+ int (*xFilter)(sqlite3_vtab_cursor*, int idxNum, const char *idxStr,
+ int argc, sqlite3_value **argv);
+ int (*xNext)(sqlite3_vtab_cursor*);
+ int (*xEof)(sqlite3_vtab_cursor*);
+ int (*xColumn)(sqlite3_vtab_cursor*, sqlite3_context*, int);
+ int (*xRowid)(sqlite3_vtab_cursor*, sqlite3_int64 *pRowid);
+ int (*xUpdate)(sqlite3_vtab *, int, sqlite3_value **, sqlite3_int64 *);
+ int (*xBegin)(sqlite3_vtab *pVTab);
+ int (*xSync)(sqlite3_vtab *pVTab);
+ int (*xCommit)(sqlite3_vtab *pVTab);
+ int (*xRollback)(sqlite3_vtab *pVTab);
+ int (*xFindFunction)(sqlite3_vtab *pVtab, int nArg, const char *zName,
+ void (**pxFunc)(sqlite3_context*,int,sqlite3_value**),
+ void **ppArg);
+
+ int (*xRename)(sqlite3_vtab *pVtab, const char *zNew);
+};
+
+/*
+** The sqlite3_index_info structure and its substructures is used to
+** pass information into and receive the reply from the xBestIndex
+** method of an sqlite3_module. The fields under **Inputs** are the
+** inputs to xBestIndex and are read-only. xBestIndex inserts its
+** results into the **Outputs** fields.
+**
+** The aConstraint[] array records WHERE clause constraints of the
+** form:
+**
+** column OP expr
+**
+** Where OP is =, <, <=, >, or >=.
+** The particular operator is stored
+** in aConstraint[].op. The index of the column is stored in
+** aConstraint[].iColumn. aConstraint[].usable is TRUE if the
+** expr on the right-hand side can be evaluated (and thus the constraint
+** is usable) and false if it cannot.
+**
+** The optimizer automatically inverts terms of the form "expr OP column"
+** and makes other simplifications to the WHERE clause in an attempt to
+** get as many WHERE clause terms into the form shown above as possible.
+** The aConstraint[] array only reports WHERE clause terms in the correct
+** form that refer to the particular virtual table being queried.
+**
+** Information about the ORDER BY clause is stored in aOrderBy[].
+** Each term of aOrderBy records a column of the ORDER BY clause.
+**
+** The xBestIndex method must fill aConstraintUsage[] with information
+** about what parameters to pass to xFilter. If argvIndex>0 then
+** the right-hand side of the corresponding aConstraint[] is evaluated
+** and becomes the argvIndex-th entry in argv. If aConstraintUsage[].omit
+** is true, then the constraint is assumed to be fully handled by the
+** virtual table and is not checked again by SQLite.
+**
+** The idxNum and idxPtr values are recorded and passed into xFilter.
+** sqlite3_free() is used to free idxPtr if needToFreeIdxPtr is true.
+**
+** The orderByConsumed means that output from xFilter will occur in
+** the correct order to satisfy the ORDER BY clause so that no separate
+** sorting step is required.
+**
+** The estimatedCost value is an estimate of the cost of doing the
+** particular lookup. A full scan of a table with N entries should have
+** a cost of N. A binary search of a table of N entries should have a
+** cost of approximately log(N).
+*/
+struct sqlite3_index_info {
+ /* Inputs */
+ int nConstraint; /* Number of entries in aConstraint */
+ struct sqlite3_index_constraint {
+ int iColumn; /* Column on left-hand side of constraint */
+ unsigned char op; /* Constraint operator */
+ unsigned char usable; /* True if this constraint is usable */
+ int iTermOffset; /* Used internally - xBestIndex should ignore */
+ } *aConstraint; /* Table of WHERE clause constraints */
+ int nOrderBy; /* Number of terms in the ORDER BY clause */
+ struct sqlite3_index_orderby {
+ int iColumn; /* Column number */
+ unsigned char desc; /* True for DESC. False for ASC. */
+ } *aOrderBy; /* The ORDER BY clause */
+
+ /* Outputs */
+ struct sqlite3_index_constraint_usage {
+ int argvIndex; /* if >0, constraint is part of argv to xFilter */
+ unsigned char omit; /* Do not code a test for this constraint */
+ } *aConstraintUsage;
+ int idxNum; /* Number used to identify the index */
+ char *idxStr; /* String, possibly obtained from sqlite3_malloc */
+ int needToFreeIdxStr; /* Free idxStr using sqlite3_free() if true */
+ int orderByConsumed; /* True if output is already ordered */
+ double estimatedCost; /* Estimated cost of using this index */
+};
+#define SQLITE_INDEX_CONSTRAINT_EQ 2
+#define SQLITE_INDEX_CONSTRAINT_GT 4
+#define SQLITE_INDEX_CONSTRAINT_LE 8
+#define SQLITE_INDEX_CONSTRAINT_LT 16
+#define SQLITE_INDEX_CONSTRAINT_GE 32
+#define SQLITE_INDEX_CONSTRAINT_MATCH 64
+
+/*
+** This routine is used to register a new module name with an SQLite
+** connection. Module names must be registered before creating new
+** virtual tables on the module, or before using preexisting virtual
+** tables of the module.
+*/
+/*IMPORT_C*/ int sqlite3_create_module(
+ sqlite3 *db, /* SQLite connection to register module with */
+ const char *zName, /* Name of the module */
+ const sqlite3_module *, /* Methods for the module */
+ void * /* Client data for xCreate/xConnect */
+);
+
+/*
+** This routine is identical to the sqlite3_create_module() method above,
+** except that it allows a destructor function to be specified. It is
+** even more experimental than the rest of the virtual tables API.
+*/
+/*IMPORT_C*/ int sqlite3_create_module_v2(
+ sqlite3 *db, /* SQLite connection to register module with */
+ const char *zName, /* Name of the module */
+ const sqlite3_module *, /* Methods for the module */
+ void *, /* Client data for xCreate/xConnect */
+ void(*xDestroy)(void*) /* Module destructor function */
+);
+
+/*
+** Every module implementation uses a subclass of the following structure
+** to describe a particular instance of the module. Each subclass will
+** be tailored to the specific needs of the module implementation. The
+** purpose of this superclass is to define certain fields that are common
+** to all module implementations.
+**
+** Virtual tables methods can set an error message by assigning a
+** string obtained from sqlite3_mprintf() to zErrMsg. The method should
+** take care that any prior string is freed by a call to sqlite3_free()
+** prior to assigning a new string to zErrMsg. After the error message
+** is delivered up to the client application, the string will be automatically
+** freed by sqlite3_free() and the zErrMsg field will be zeroed. Note
+** that sqlite3_mprintf() and sqlite3_free() are used on the zErrMsg field
+** since virtual tables are commonly implemented in loadable extensions which
+** do not have access to sqlite3MPrintf() or sqlite3Free().
+*/
+struct sqlite3_vtab {
+ const sqlite3_module *pModule; /* The module for this virtual table */
+ int nRef; /* Used internally */
+ char *zErrMsg; /* Error message from sqlite3_mprintf() */
+ /* Virtual table implementations will typically add additional fields */
+};
+
+/* Every module implementation uses a subclass of the following structure
+** to describe cursors that point into the virtual table and are used
+** to loop through the virtual table. Cursors are created using the
+** xOpen method of the module. Each module implementation will define
+** the content of a cursor structure to suit its own needs.
+**
+** This superclass exists in order to define fields of the cursor that
+** are common to all implementations.
+*/
+struct sqlite3_vtab_cursor {
+ sqlite3_vtab *pVtab; /* Virtual table of this cursor */
+ /* Virtual table implementations will typically add additional fields */
+};
+
+/*
+** The xCreate and xConnect methods of a module use the following API
+** to declare the format (the names and datatypes of the columns) of
+** the virtual tables they implement.
+*/
+/*IMPORT_C*/ int sqlite3_declare_vtab(sqlite3*, const char *zCreateTable);
+
+/*
+** Virtual tables can provide alternative implementations of functions
+** using the xFindFunction method. But global versions of those functions
+** must exist in order to be overloaded.
+**
+** This API makes sure a global version of a function with a particular
+** name and number of parameters exists. If no such function exists
+** before this API is called, a new function is created. The implementation
+** of the new function always causes an exception to be thrown. So
+** the new function is not good for anything by itself. Its only
+** purpose is to be a place-holder function that can be overloaded
+** by virtual tables.
+**
+** This API should be considered part of the virtual table interface,
+** which is experimental and subject to change.
+*/
+/*IMPORT_C*/ int sqlite3_overload_function(sqlite3*, const char *zFuncName, int nArg);
+
+/*
+** The interface to the virtual-table mechanism defined above (back up
+** to a comment remarkably similar to this one) is currently considered
+** to be experimental. The interface might change in incompatible ways.
+** If this is a problem for you, do not use the interface at this time.
+**
+** When the virtual-table mechanism stabilizes, we will declare the
+** interface fixed, support it indefinitely, and remove this comment.
+**
+****** EXPERIMENTAL - subject to change without notice **************
+*/
+
+/*
+** CAPI3REF: A Handle To An Open BLOB {F17800}
+**
+** An instance of the following opaque structure is used to
+** represent an blob-handle. A blob-handle is created by
+** [sqlite3_blob_open()] and destroyed by [sqlite3_blob_close()].
+** The [sqlite3_blob_read()] and [sqlite3_blob_write()] interfaces
+** can be used to read or write small subsections of the blob.
+** The [sqlite3_blob_bytes()] interface returns the size of the
+** blob in bytes.
+*/
+typedef struct sqlite3_blob sqlite3_blob;
+
+/*
+** CAPI3REF: Open A BLOB For Incremental I/O {F17810}
+**
+** {F17811} This interfaces opens a handle to the blob located
+** in row iRow,, column zColumn, table zTable in database zDb;
+** in other words, the same blob that would be selected by:
+**
+**
+** SELECT zColumn FROM zDb.zTable WHERE rowid = iRow;
+**
{END}
+**
+** {F17812} If the flags parameter is non-zero, the blob is opened for
+** read and write access. If it is zero, the blob is opened for read
+** access. {END}
+**
+** {F17813} On success, [SQLITE_OK] is returned and the new
+** [sqlite3_blob | blob handle] is written to *ppBlob.
+** {F17814} Otherwise an error code is returned and
+** any value written to *ppBlob should not be used by the caller.
+** {F17815} This function sets the database-handle error code and message
+** accessible via [sqlite3_errcode()] and [sqlite3_errmsg()].
+** We should go through and mark all interfaces that behave this
+** way with a similar statement
+*/
+/*IMPORT_C*/ int sqlite3_blob_open(
+ sqlite3*,
+ const char *zDb,
+ const char *zTable,
+ const char *zColumn,
+ sqlite3_int64 iRow,
+ int flags,
+ sqlite3_blob **ppBlob
+);
+
+/*
+** CAPI3REF: Close A BLOB Handle {F17830}
+**
+** Close an open [sqlite3_blob | blob handle].
+**
+** {F17831} Closing a BLOB shall cause the current transaction to commit
+** if there are no other BLOBs, no pending prepared statements, and the
+** database connection is in autocommit mode.
+** {F17832} If any writes were made to the BLOB, they might be held in cache
+** until the close operation if they will fit. {END}
+** Closing the BLOB often forces the changes
+** out to disk and so if any I/O errors occur, they will likely occur
+** at the time when the BLOB is closed. {F17833} Any errors that occur during
+** closing are reported as a non-zero return value.
+**
+** {F17839} The BLOB is closed unconditionally. Even if this routine returns
+** an error code, the BLOB is still closed.
+*/
+/*IMPORT_C*/ int sqlite3_blob_close(sqlite3_blob *);
+
+/*
+** CAPI3REF: Return The Size Of An Open BLOB {F17805}
+**
+** {F16806} Return the size in bytes of the blob accessible via the open
+** [sqlite3_blob | blob-handle] passed as an argument.
+*/
+/*IMPORT_C*/ int sqlite3_blob_bytes(sqlite3_blob *);
+
+/*
+** CAPI3REF: Read Data From A BLOB Incrementally {F17850}
+**
+** This function is used to read data from an open
+** [sqlite3_blob | blob-handle] into a caller supplied buffer.
+** {F17851} n bytes of data are copied into buffer
+** z from the open blob, starting at offset iOffset.
+**
+** {F17852} If offset iOffset is less than n bytes from the end of the blob,
+** [SQLITE_ERROR] is returned and no data is read. {F17853} If n is
+** less than zero [SQLITE_ERROR] is returned and no data is read.
+**
+** {F17854} On success, SQLITE_OK is returned. Otherwise, an
+** [SQLITE_ERROR | SQLite error code] or an
+** [SQLITE_IOERR_READ | extended error code] is returned.
+*/
+/*IMPORT_C*/ int sqlite3_blob_read(sqlite3_blob *, void *z, int n, int iOffset);
+
+/*
+** CAPI3REF: Write Data Into A BLOB Incrementally {F17870}
+**
+** This function is used to write data into an open
+** [sqlite3_blob | blob-handle] from a user supplied buffer.
+** {F17871} n bytes of data are copied from the buffer
+** pointed to by z into the open blob, starting at offset iOffset.
+**
+** {F17872} If the [sqlite3_blob | blob-handle] passed as the first argument
+** was not opened for writing (the flags parameter to [sqlite3_blob_open()]
+*** was zero), this function returns [SQLITE_READONLY].
+**
+** {F17873} This function may only modify the contents of the blob; it is
+** not possible to increase the size of a blob using this API.
+** {F17874} If offset iOffset is less than n bytes from the end of the blob,
+** [SQLITE_ERROR] is returned and no data is written. {F17875} If n is
+** less than zero [SQLITE_ERROR] is returned and no data is written.
+**
+** {F17876} On success, SQLITE_OK is returned. Otherwise, an
+** [SQLITE_ERROR | SQLite error code] or an
+** [SQLITE_IOERR_READ | extended error code] is returned.
+*/
+/*IMPORT_C*/ int sqlite3_blob_write(sqlite3_blob *, const void *z, int n, int iOffset);
+
+/*
+** CAPI3REF: Virtual File System Objects {F11200}
+**
+** A virtual filesystem (VFS) is an [sqlite3_vfs] object
+** that SQLite uses to interact
+** with the underlying operating system. Most builds come with a
+** single default VFS that is appropriate for the host computer.
+** New VFSes can be registered and existing VFSes can be unregistered.
+** The following interfaces are provided.
+**
+** {F11201} The sqlite3_vfs_find() interface returns a pointer to
+** a VFS given its name. {F11202} Names are case sensitive.
+** {F11203} Names are zero-terminated UTF-8 strings.
+** {F11204} If there is no match, a NULL
+** pointer is returned. {F11205} If zVfsName is NULL then the default
+** VFS is returned. {END}
+**
+** {F11210} New VFSes are registered with sqlite3_vfs_register().
+** {F11211} Each new VFS becomes the default VFS if the makeDflt flag is set.
+** {F11212} The same VFS can be registered multiple times without injury.
+** {F11213} To make an existing VFS into the default VFS, register it again
+** with the makeDflt flag set. {U11214} If two different VFSes with the
+** same name are registered, the behavior is undefined. {U11215} If a
+** VFS is registered with a name that is NULL or an empty string,
+** then the behavior is undefined.
+**
+** {F11220} Unregister a VFS with the sqlite3_vfs_unregister() interface.
+** {F11221} If the default VFS is unregistered, another VFS is chosen as
+** the default. The choice for the new VFS is arbitrary.
+*/
+/*IMPORT_C*/ sqlite3_vfs *sqlite3_vfs_find(const char *zVfsName);
+/*IMPORT_C*/ int sqlite3_vfs_register(sqlite3_vfs*, int makeDflt);
+/*IMPORT_C*/ int sqlite3_vfs_unregister(sqlite3_vfs*);
+
+/*
+** CAPI3REF: Mutexes {F17000}
+**
+** The SQLite core uses these routines for thread
+** synchronization. Though they are intended for internal
+** use by SQLite, code that links against SQLite is
+** permitted to use any of these routines.
+**
+** The SQLite source code contains multiple implementations
+** of these mutex routines. An appropriate implementation
+** is selected automatically at compile-time. The following
+** implementations are available in the SQLite core:
+**
+**
+** - SQLITE_MUTEX_OS2
+**
- SQLITE_MUTEX_PTHREAD
+**
- SQLITE_MUTEX_W32
+**
- SQLITE_MUTEX_NOOP
+**
+**
+** The SQLITE_MUTEX_NOOP implementation is a set of routines
+** that does no real locking and is appropriate for use in
+** a single-threaded application. The SQLITE_MUTEX_OS2,
+** SQLITE_MUTEX_PTHREAD, and SQLITE_MUTEX_W32 implementations
+** are appropriate for use on os/2, unix, and windows.
+**
+** If SQLite is compiled with the SQLITE_MUTEX_APPDEF preprocessor
+** macro defined (with "-DSQLITE_MUTEX_APPDEF=1"), then no mutex
+** implementation is included with the library. The
+** mutex interface routines defined here become external
+** references in the SQLite library for which implementations
+** must be provided by the application. This facility allows an
+** application that links against SQLite to provide its own mutex
+** implementation without having to modify the SQLite core.
+**
+** {F17011} The sqlite3_mutex_alloc() routine allocates a new
+** mutex and returns a pointer to it. {F17012} If it returns NULL
+** that means that a mutex could not be allocated. {F17013} SQLite
+** will unwind its stack and return an error. {F17014} The argument
+** to sqlite3_mutex_alloc() is one of these integer constants:
+**
+**
+** - SQLITE_MUTEX_FAST
+**
- SQLITE_MUTEX_RECURSIVE
+**
- SQLITE_MUTEX_STATIC_MASTER
+**
- SQLITE_MUTEX_STATIC_MEM
+**
- SQLITE_MUTEX_STATIC_MEM2
+**
- SQLITE_MUTEX_STATIC_PRNG
+**
- SQLITE_MUTEX_STATIC_LRU
+**
{END}
+**
+** {F17015} The first two constants cause sqlite3_mutex_alloc() to create
+** a new mutex. The new mutex is recursive when SQLITE_MUTEX_RECURSIVE
+** is used but not necessarily so when SQLITE_MUTEX_FAST is used. {END}
+** The mutex implementation does not need to make a distinction
+** between SQLITE_MUTEX_RECURSIVE and SQLITE_MUTEX_FAST if it does
+** not want to. {F17016} But SQLite will only request a recursive mutex in
+** cases where it really needs one. {END} If a faster non-recursive mutex
+** implementation is available on the host platform, the mutex subsystem
+** might return such a mutex in response to SQLITE_MUTEX_FAST.
+**
+** {F17017} The other allowed parameters to sqlite3_mutex_alloc() each return
+** a pointer to a static preexisting mutex. {END} Four static mutexes are
+** used by the current version of SQLite. Future versions of SQLite
+** may add additional static mutexes. Static mutexes are for internal
+** use by SQLite only. Applications that use SQLite mutexes should
+** use only the dynamic mutexes returned by SQLITE_MUTEX_FAST or
+** SQLITE_MUTEX_RECURSIVE.
+**
+** {F17018} Note that if one of the dynamic mutex parameters (SQLITE_MUTEX_FAST
+** or SQLITE_MUTEX_RECURSIVE) is used then sqlite3_mutex_alloc()
+** returns a different mutex on every call. {F17034} But for the static
+** mutex types, the same mutex is returned on every call that has
+** the same type number. {END}
+**
+** {F17019} The sqlite3_mutex_free() routine deallocates a previously
+** allocated dynamic mutex. {F17020} SQLite is careful to deallocate every
+** dynamic mutex that it allocates. {U17021} The dynamic mutexes must not be in
+** use when they are deallocated. {U17022} Attempting to deallocate a static
+** mutex results in undefined behavior. {F17023} SQLite never deallocates
+** a static mutex. {END}
+**
+** The sqlite3_mutex_enter() and sqlite3_mutex_try() routines attempt
+** to enter a mutex. {F17024} If another thread is already within the mutex,
+** sqlite3_mutex_enter() will block and sqlite3_mutex_try() will return
+** SQLITE_BUSY. {F17025} The sqlite3_mutex_try() interface returns SQLITE_OK
+** upon successful entry. {F17026} Mutexes created using
+** SQLITE_MUTEX_RECURSIVE can be entered multiple times by the same thread.
+** {F17027} In such cases the,
+** mutex must be exited an equal number of times before another thread
+** can enter. {U17028} If the same thread tries to enter any other
+** kind of mutex more than once, the behavior is undefined.
+** {F17029} SQLite will never exhibit
+** such behavior in its own use of mutexes. {END}
+**
+** Some systems (ex: windows95) do not the operation implemented by
+** sqlite3_mutex_try(). On those systems, sqlite3_mutex_try() will
+** always return SQLITE_BUSY. {F17030} The SQLite core only ever uses
+** sqlite3_mutex_try() as an optimization so this is acceptable behavior. {END}
+**
+** {F17031} The sqlite3_mutex_leave() routine exits a mutex that was
+** previously entered by the same thread. {U17032} The behavior
+** is undefined if the mutex is not currently entered by the
+** calling thread or is not currently allocated. {F17033} SQLite will
+** never do either. {END}
+**
+** See also: [sqlite3_mutex_held()] and [sqlite3_mutex_notheld()].
+*/
+/*IMPORT_C*/ sqlite3_mutex *sqlite3_mutex_alloc(int);
+/*IMPORT_C*/ void sqlite3_mutex_free(sqlite3_mutex*);
+/*IMPORT_C*/ void sqlite3_mutex_enter(sqlite3_mutex*);
+/*IMPORT_C*/ int sqlite3_mutex_try(sqlite3_mutex*);
+/*IMPORT_C*/ void sqlite3_mutex_leave(sqlite3_mutex*);
+
+/*
+** CAPI3REF: Mutex Verifcation Routines {F17080}
+**
+** The sqlite3_mutex_held() and sqlite3_mutex_notheld() routines
+** are intended for use inside assert() statements. {F17081} The SQLite core
+** never uses these routines except inside an assert() and applications
+** are advised to follow the lead of the core. {F17082} The core only
+** provides implementations for these routines when it is compiled
+** with the SQLITE_DEBUG flag. {U17087} External mutex implementations
+** are only required to provide these routines if SQLITE_DEBUG is
+** defined and if NDEBUG is not defined.
+**
+** {F17083} These routines should return true if the mutex in their argument
+** is held or not held, respectively, by the calling thread. {END}
+**
+** {X17084} The implementation is not required to provided versions of these
+** routines that actually work.
+** If the implementation does not provide working
+** versions of these routines, it should at least provide stubs
+** that always return true so that one does not get spurious
+** assertion failures. {END}
+**
+** {F17085} If the argument to sqlite3_mutex_held() is a NULL pointer then
+** the routine should return 1. {END} This seems counter-intuitive since
+** clearly the mutex cannot be held if it does not exist. But the
+** the reason the mutex does not exist is because the build is not
+** using mutexes. And we do not want the assert() containing the
+** call to sqlite3_mutex_held() to fail, so a non-zero return is
+** the appropriate thing to do. {F17086} The sqlite3_mutex_notheld()
+** interface should also return 1 when given a NULL pointer.
+*/
+/*IMPORT_C*/ int sqlite3_mutex_held(sqlite3_mutex*);
+/*IMPORT_C*/ int sqlite3_mutex_notheld(sqlite3_mutex*);
+
+/*
+** CAPI3REF: Mutex Types {F17001}
+**
+** {F17002} The [sqlite3_mutex_alloc()] interface takes a single argument
+** which is one of these integer constants. {END}
+*/
+#define SQLITE_MUTEX_FAST 0
+#define SQLITE_MUTEX_RECURSIVE 1
+#define SQLITE_MUTEX_STATIC_MASTER 2
+#define SQLITE_MUTEX_STATIC_MEM 3 /* sqlite3_malloc() */
+#define SQLITE_MUTEX_STATIC_MEM2 4 /* sqlite3_release_memory() */
+#define SQLITE_MUTEX_STATIC_PRNG 5 /* sqlite3_random() */
+#define SQLITE_MUTEX_STATIC_LRU 6 /* lru page list */
+
+/*
+** CAPI3REF: Low-Level Control Of Database Files {F11300}
+**
+** {F11301} The [sqlite3_file_control()] interface makes a direct call to the
+** xFileControl method for the [sqlite3_io_methods] object associated
+** with a particular database identified by the second argument. {F11302} The
+** name of the database is the name assigned to the database by the
+** ATTACH SQL command that opened the
+** database. {F11303} To control the main database file, use the name "main"
+** or a NULL pointer. {F11304} The third and fourth parameters to this routine
+** are passed directly through to the second and third parameters of
+** the xFileControl method. {F11305} The return value of the xFileControl
+** method becomes the return value of this routine.
+**
+** {F11306} If the second parameter (zDbName) does not match the name of any
+** open database file, then SQLITE_ERROR is returned. {F11307} This error
+** code is not remembered and will not be recalled by [sqlite3_errcode()]
+** or [sqlite3_errmsg()]. {U11308} The underlying xFileControl method might
+** also return SQLITE_ERROR. {U11309} There is no way to distinguish between
+** an incorrect zDbName and an SQLITE_ERROR return from the underlying
+** xFileControl method. {END}
+**
+** See also: [SQLITE_FCNTL_LOCKSTATE]
+*/
+/*IMPORT_C*/ int sqlite3_file_control(sqlite3*, const char *zDbName, int op, void*);
+
+/*IMPORT_C*/ int sqlite3_openTest(
+ const char *zFilename
+);
+
+/*IMPORT_C*/ int sqlite3_bind_double_ref(sqlite3_stmt *stmt, int iCol, double *val);
+
+/*IMPORT_C*/ int sqlite3_bind_int64_ref(sqlite3_stmt *stmt, int iCol, sqlite_int64 *val);
+
+/*IMPORT_C*/ void sqlite3_column_double_ref(sqlite3_stmt *stmt, int iCol, double *val);
+
+/*IMPORT_C*/ void sqlite3_column_int64_ref(sqlite3_stmt *stmt, int iCol, sqlite_int64 *val);
+
+/*IMPORT_C*/ unsigned int sqlite3_strlen(char *ptr);
+
+/*
+** Undo the hack that converts floating point types to integer for
+** builds on processors without floating point support.
+*/
+#ifdef SQLITE_OMIT_FLOATING_POINT
+# undef double
+#endif
+
+#ifdef __cplusplus
+} /* End of the 'extern "C"' block */
+#endif
+#endif
diff -r 3c0683f9f72c -r 70749e2f572d engine/src/ConnectionEngine.cpp
--- a/engine/src/ConnectionEngine.cpp Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/src/ConnectionEngine.cpp Thu Apr 29 11:55:32 2010 +0100
@@ -261,7 +261,7 @@
return iConnectionState;
}
-void CConnectionEngine::AddObserver(MConnectionObserver* aObserver)
+EXPORT_C void CConnectionEngine::AddObserver(MConnectionObserver* aObserver)
{
iObserverArray.Append(aObserver);
}
diff -r 3c0683f9f72c -r 70749e2f572d engine/src/FeedEngine.cpp
--- a/engine/src/FeedEngine.cpp Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/src/FeedEngine.cpp Thu Apr 29 11:55:32 2010 +0100
@@ -26,15 +26,9 @@
#include "OpmlParser.h"
#include "PodcastUtils.h"
#include
+#include "Podcatcher.pan"
-// Cleanup stack macro for SQLite3
-// TODO Move this to some common place.
-static void Cleanup_sqlite3_finalize_wrapper(TAny* handle)
- {
- sqlite3_finalize(static_cast(handle));
- }
-#define Cleanup_sqlite3_finalize_PushL(__handle) CleanupStack::PushL(TCleanupItem(&Cleanup_sqlite3_finalize_wrapper, __handle))
-
+_LIT(KFeedParseStorePath, "feeds\\");
CFeedEngine* CFeedEngine::NewL(CPodcastModel& aPodcastModel)
{
@@ -52,27 +46,41 @@
iFeedClient = CHttpClient::NewL(iPodcastModel, *this);
iFeedTimer.ConstructL();
- RunFeedTimer();
+ TInt err = KErrNone;
+ TInt feedCount = 0;
- if (DBGetFeedCount() > 0)
+ TRAP(err, feedCount = DBGetFeedCountL());
+ if (err == KErrNone && feedCount > 0)
{
DP("Loading feeds from DB");
- DBLoadFeedsL();
- }
+ TRAP(err, DBLoadFeedsL());
+ }
+
- if (iPodcastModel.IsFirstStartup()) {
+ if (err != KErrNone || iPodcastModel.IsFirstStartup()) {
TFileName defaultFile = iPodcastModel.SettingsEngine().DefaultFeedsFileName();
DP1("Loading default feeds from %S", &defaultFile);
if (BaflUtils::FileExists(iPodcastModel.FsSession(), defaultFile)) {
ImportFeedsL(defaultFile);
}
- }
+ }
+
+ // clean out feeds temp directory
+ TFileName feedTempPath;
+ feedTempPath.Copy (iPodcastModel.SettingsEngine().PrivatePath ());
+ feedTempPath.Append(KFeedParseStorePath);
+ feedTempPath.Append(_L("*"));
+
+ BaflUtils::EnsurePathExistsL(iPodcastModel.FsSession(), feedTempPath);
+ BaflUtils::DeleteFile(iPodcastModel.FsSession(),feedTempPath);
TFileName importFile = iPodcastModel.SettingsEngine().ImportFeedsFileName();
if (BaflUtils::FileExists(iPodcastModel.FsSession(), importFile)) {
DP("Importing feeds");
- ImportFeedsL(importFile);
+ TRAP_IGNORE(ImportFeedsL(importFile));
}
+
+ RunFeedTimer();
}
CFeedEngine::CFeedEngine(CPodcastModel& aPodcastModel)
@@ -148,7 +156,7 @@
TInt cnt = iSortedFeeds.Count();
for (int i=0;iUid());
}
UpdateNextFeedL();
@@ -168,20 +176,31 @@
{
DP1("UpdateNextFeed. %d feeds left to update", iFeedsUpdating.Count());
+ // reset active feed, will be set again in UpdateFeedL if needed
+ iActiveFeed = NULL;
+
if (iFeedsUpdating.Count() > 0)
{
- CFeedInfo *info = iFeedsUpdating[0];
+ CFeedInfo *info = GetFeedInfoByUid(iFeedsUpdating[0]);
iFeedsUpdating.Remove(0);
- TBool result = EFalse;
- //DP2("** UpdateNextFeed: %S, ID: %u", &(info->Url()), info->Uid());
- TRAPD(error, result = UpdateFeedL(info->Uid()));
- if (error != KErrNone || !result)
+ if (info == NULL)
+ {
+ UpdateNextFeedL();
+ }
+ else
{
- DP("Error while updating all feeds");
- for (TInt i=0;iUrl()), info->Uid());
+ TRAPD(error, result = UpdateFeedL(info->Uid()));
+
+ if (error != KErrNone || !result)
{
- TRAP_IGNORE(iObservers[i]->FeedUpdateAllCompleteL(iAutoUpdatedInitiator?MFeedEngineObserver::EFeedAutoUpdate:MFeedEngineObserver::EFeedManualUpdate));
+ DP("Error while updating all feeds");
+ for (TInt i=0;iFeedUpdateAllCompleteL(iAutoUpdatedInitiator?MFeedEngineObserver::EFeedAutoUpdate:MFeedEngineObserver::EFeedManualUpdate));
+ }
}
}
}
@@ -198,31 +217,42 @@
EXPORT_C TBool CFeedEngine::UpdateFeedL(TUint aFeedUid)
{
DP("FeedEngine::UpdateFeedL BEGIN");
+
+ if (iActiveFeed)
+ {
+ User::Leave(KErrInUse);
+ }
+
iActiveFeed = GetFeedInfoByUid(aFeedUid);
- iCatchupCounter = 0;
+
iCancelRequested = EFalse;
if (iActiveFeed->LastUpdated() == 0)
{
iCatchupMode = ETrue;
+ iCatchupCounter = 0;
}
iActiveFeed->SetLastError(KErrNone);
DBUpdateFeedL(*iActiveFeed);
iUpdatingFeedFileName.Copy (iPodcastModel.SettingsEngine().PrivatePath ());
+ iUpdatingFeedFileName.Append(KFeedParseStorePath);
+ BaflUtils::EnsurePathExistsL(iPodcastModel.FsSession(), iUpdatingFeedFileName);
+
_LIT(KFileNameFormat, "%lu.xml");
iUpdatingFeedFileName.AppendFormat(KFileNameFormat, aFeedUid);
+ iClientState = EUpdatingFeed;
+
+ for (TInt i=0;iFeedDownloadStartedL(iAutoUpdatedInitiator?MFeedEngineObserver::EFeedAutoUpdate:MFeedEngineObserver::EFeedManualUpdate, iActiveFeed->Uid()));
+ }
+
if(iFeedClient->GetL(iActiveFeed->Url(), iUpdatingFeedFileName, iPodcastModel.SettingsEngine().SpecificIAP()))
{
- iClientState = EUpdatingFeed;
- for (TInt i=0;iFeedDownloadStartedL(iAutoUpdatedInitiator?MFeedEngineObserver::EFeedAutoUpdate:MFeedEngineObserver::EFeedManualUpdate, iActiveFeed->Uid()));
- }
-
DP("FeedEngine::UpdateFeedL END, return ETrue");
return ETrue;
}
@@ -250,9 +280,10 @@
}
}
- TBool isShowAdded = iPodcastModel.ShowEngine().AddShowL(aItem);
+ TRAPD(err, iPodcastModel.ShowEngine().AddShowL(aItem));
- if (aItem.PlayState() == ENeverPlayed && isShowAdded && iPodcastModel.SettingsEngine().DownloadAutomatically())
+ if (err == KErrNone && aItem.PlayState() == ENeverPlayed &&
+ iPodcastModel.SettingsEngine().DownloadAutomatically())
{
iPodcastModel.ShowEngine().AddDownloadL(aItem);
}
@@ -277,7 +308,7 @@
// complete file path is base dir + rel path
filePath.Append(relPath);
- aFeedInfo->SetImageFileNameL(filePath);
+ aFeedInfo->SetImageFileNameL(filePath, NULL);
if(iFeedClient->GetL(aFeedInfo->ImageUrl(), filePath, ETrue))
{
@@ -309,15 +340,17 @@
return ETrue;
}
-TBool CFeedEngine::DBAddFeedL(const CFeedInfo& aItem)
+void CFeedEngine::DBAddFeedL(const CFeedInfo& aItem)
{
DP2("CFeedEngine::DBAddFeed, title=%S, URL=%S", &aItem.Title(), &aItem.Url());
- CFeedInfo *info = DBGetFeedInfoByUidL(aItem.Uid());
- if (info) {
- DP("Feed already exists!");
+ CFeedInfo *info;
+
+ TRAPD(err, info = DBGetFeedInfoByUidL(aItem.Uid()));
+
+ if (err == KErrNone && info) {
delete info;
- return EFalse;
+ User::Leave(KErrAlreadyExists);
}
HBufC* titleBuf = HBufC::NewLC(KMaxLineLength);
@@ -341,34 +374,38 @@
sqlite3_stmt *st;
- //DP1("SQL statement length=%d", iSqlBuffer.Length());
int rc = sqlite3_prepare16_v2(&iDB, (const void*)iSqlBuffer.PtrZ() , -1, &st, (const void**) NULL);
if (rc==SQLITE_OK)
{
+ Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
- if (rc == SQLITE_DONE)
+ if (rc != SQLITE_DONE)
{
- sqlite3_finalize(st);
- return ETrue;
+ User::Leave(KErrCorrupt);
}
- else {
- sqlite3_finalize(st);
+ CleanupStack::PopAndDestroy(); // st
}
- }
-
- return EFalse;
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
}
EXPORT_C void CFeedEngine::RemoveFeedL(TUint aUid)
{
+ if (iActiveFeed && iActiveFeed->Uid() == aUid)
+ {
+ User::Leave(KErrInUse);
+ }
+
for (int i=0;iUid() == aUid)
{
iPodcastModel.ShowEngine().DeleteAllShowsByFeedL(aUid);
-
+
CFeedInfo* feedToRemove = iSortedFeeds[i];
//delete the image file if it exists
@@ -391,15 +428,13 @@
DP("Removed feed from array");
// now remove it from DB
- DBRemoveFeed(aUid);
-
- return;
+ DBRemoveFeedL(aUid);
}
}
}
-TBool CFeedEngine::DBRemoveFeed(TUint aUid)
+void CFeedEngine::DBRemoveFeedL(TUint aUid)
{
DP("CFeedEngine::DBRemoveFeed");
_LIT(KSqlStatement, "delete from feeds where uid=%u");
@@ -411,23 +446,23 @@
if (rc==SQLITE_OK)
{
+ Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
- sqlite3_finalize(st);
- if (rc == SQLITE_DONE)
+ if (rc != SQLITE_DONE)
{
- DP("Feed removed from DB");
- return ETrue;
+ User::Leave(KErrNotFound);
}
- else
- {
- DP("Error when removing feed from DB");
- }
+
+ CleanupStack::PopAndDestroy(); //st
}
- return EFalse;
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
}
-TBool CFeedEngine::DBUpdateFeedL(const CFeedInfo &aItem)
+void CFeedEngine::DBUpdateFeedL(const CFeedInfo &aItem)
{
DP2("CFeedEngine::DBUpdateFeed, title=%S, URL=%S", &aItem.Title(), &aItem.Url());
@@ -452,25 +487,23 @@
sqlite3_stmt *st;
- //DP1("SQL statement length=%d", iSqlBuffer.Length());
int rc = sqlite3_prepare16_v2(&iDB, (const void*)iSqlBuffer.PtrZ() , -1, &st, (const void**) NULL);
if (rc==SQLITE_OK)
{
+ Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
- sqlite3_finalize(st);
- if (rc == SQLITE_DONE)
+ if (rc != SQLITE_DONE)
{
- return ETrue;
+ User::Leave(KErrNotFound);
}
+ CleanupStack::PopAndDestroy(); //st
}
else
{
- DP1("SQLite rc=%d", rc);
+ User::Leave(KErrCorrupt);
}
-
- return EFalse;
}
void CFeedEngine::ParsingCompleteL(CFeedInfo *item)
@@ -510,21 +543,8 @@
switch(iClientState)
{
- default:
- if(iActiveFeed != NULL)
- {
- TTime time;
- time.HomeTime();
- iActiveFeed->SetLastUpdated(time);
- iActiveFeed->SetLastError(aError);
- NotifyFeedUpdateCompleteL(aError);
- }
- break;
case EUpdatingFeed:
{
- // Parse the feed. We need to trap this call since it could leave and then
- // the whole update chain will be broken
- // change client state
iClientState = EIdle;
switch (aError)
{
@@ -545,7 +565,10 @@
iActiveFeed->SetLastUpdated(time);
if( aError == KErrNone)
- {
+ {
+ // Parse the feed. We need to trap this call since it could leave and then
+ // the whole update chain will be broken
+ // change client state
TRAPD(parserErr, iParser->ParseFeedL(iUpdatingFeedFileName, iActiveFeed, iPodcastModel.SettingsEngine().MaxListItems()));
if(parserErr)
@@ -556,7 +579,7 @@
}
else
{
- iPodcastModel.ShowEngine().DeleteOldShowsByFeed(iActiveFeed->Uid());
+ iPodcastModel.ShowEngine().DeleteOldShowsByFeedL(iActiveFeed->Uid());
}
// delete the downloaded XML file as it is no longer needed
@@ -582,13 +605,18 @@
}
}
}
+ else
+ {
+ // even if it fails, this will allow us to move on
+ iClientState = EIdle;
+ }
}
iCancelRequested = EFalse;
}break;
}
-
- NotifyFeedUpdateCompleteL(aError);
-
+ DBUpdateFeedL(*iActiveFeed);
+ NotifyFeedUpdateComplete(iActiveFeed->Uid(), aError);
+
// we will wait until the image has been downloaded to start the next feed update.
if (iClientState == EIdle)
{
@@ -599,8 +627,16 @@
{
// change client state to not updating
iClientState = EIdle;
-
- NotifyFeedUpdateCompleteL(aError);
+ if(aError == KErrNone)
+ {
+ // now the image has been downloaded, so we set it again in the FeedInfo to start
+ // converting it
+ HBufC *fileNameCopy = iActiveFeed->ImageFileName().AllocLC();
+ TRAP_IGNORE(iActiveFeed->SetImageFileNameL(*fileNameCopy, &iPodcastModel));
+ CleanupStack::PopAndDestroy(fileNameCopy);
+ }
+ DBUpdateFeedL(*iActiveFeed);
+ NotifyFeedUpdateComplete(iActiveFeed->Uid(), aError);
UpdateNextFeedL();
}break;
case ESearching:
@@ -625,17 +661,22 @@
BaflUtils::DeleteFile(iPodcastModel.FsSession(), iSearchResultsFileName);
}break;
+ case EIdle:
+ UpdateNextFeedL();
+ break;
+ default:
+ Panic(EPodcatcherPanicFeedEngineState);
+ break;
}
DP("CFeedEngine::CompleteL END");
}
-void CFeedEngine::NotifyFeedUpdateCompleteL(TInt aError)
+void CFeedEngine::NotifyFeedUpdateComplete(TInt aFeedUid, TInt aError)
{
- DP("CFeedEngine::NotifyFeedUpdateComplete");
- DBUpdateFeedL(*iActiveFeed);
+ DP("CFeedEngine::NotifyFeedUpdateComplete");
for (TInt i=0;iFeedDownloadFinishedL(iAutoUpdatedInitiator?MFeedEngineObserver::EFeedAutoUpdate:MFeedEngineObserver::EFeedManualUpdate, iActiveFeed->Uid(), aError));
+ TRAP_IGNORE(iObservers[i]->FeedDownloadFinishedL(MFeedEngineObserver::EFeedAutoUpdate, aFeedUid, aError));
}
}
@@ -772,49 +813,13 @@
return a.Title().CompareF(b.Title());
}
-EXPORT_C void CFeedEngine::GetDownloadedStats(TUint &aNumShows, TUint &aNumUnplayed)
+EXPORT_C void CFeedEngine::GetStatsByFeedL(TUint aFeedUid, TUint &aNumShows, TUint &aNumUnplayed)
{
- DP("CFeedEngine::GetDownloadedStats");
- _LIT(KSqlStatement, "select count(*) from shows where downloadstate=%u");
- iSqlBuffer.Format(KSqlStatement, EDownloaded);
-
- sqlite3_stmt *st;
-
- int rc = sqlite3_prepare16_v2(&iDB, (const void*)iSqlBuffer.PtrZ() , -1, &st, (const void**) NULL);
-
- if( rc==SQLITE_OK ){
- rc = sqlite3_step(st);
-
- if (rc == SQLITE_ROW) {
- aNumShows = sqlite3_column_int(st, 0);
- }
- }
-
- sqlite3_finalize(st);
-
- _LIT(KSqlStatement2, "select count(*) from shows where downloadstate=%u and playstate=%u");
- iSqlBuffer.Format(KSqlStatement2, EDownloaded, ENeverPlayed);
-
- rc = sqlite3_prepare16_v2(&iDB, (const void*)iSqlBuffer.PtrZ() , -1, &st, (const void**) NULL);
-
- if( rc==SQLITE_OK ){
- rc = sqlite3_step(st);
-
- if (rc == SQLITE_ROW) {
- aNumUnplayed = sqlite3_column_int(st, 0);
- }
- }
-
- sqlite3_finalize(st);
+ //DP1("CFeedEngine::GetStatsByFeed, aFeedUid=%u", aFeedUid);
+ DBGetStatsByFeedL(aFeedUid, aNumShows, aNumUnplayed);
}
-EXPORT_C void CFeedEngine::GetStatsByFeed(TUint aFeedUid, TUint &aNumShows, TUint &aNumUnplayed)
- {
- //DP1("CFeedEngine::GetStatsByFeed, aFeedUid=%u", aFeedUid);
- DBGetStatsByFeed(aFeedUid, aNumShows, aNumUnplayed);
- }
-
-void CFeedEngine::DBGetStatsByFeed(TUint aFeedUid, TUint &aNumShows, TUint &aNumUnplayed)
+void CFeedEngine::DBGetStatsByFeedL(TUint aFeedUid, TUint &aNumShows, TUint &aNumUnplayed)
{
//DP1("CFeedEngine::DBGetStatsByFeed, feedUid=%u", aFeedUid);
_LIT(KSqlStatement, "select count(*) from shows where feeduid=%u");
@@ -824,50 +829,77 @@
int rc = sqlite3_prepare16_v2(&iDB, (const void*)iSqlBuffer.PtrZ() , -1, &st, (const void**) NULL);
- if( rc==SQLITE_OK ){
+ if( rc==SQLITE_OK)
+ {
+ Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
- if (rc == SQLITE_ROW) {
+ if (rc == SQLITE_ROW)
+ {
aNumShows = sqlite3_column_int(st, 0);
- }
- }
+ }
+ else
+ {
+ User::Leave(KErrNotFound);
+ }
+ CleanupStack::PopAndDestroy(); // st
+ }
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
- sqlite3_finalize(st);
-
_LIT(KSqlStatement2, "select count(*) from shows where feeduid=%u and playstate=0");
iSqlBuffer.Format(KSqlStatement2, aFeedUid);
rc = sqlite3_prepare16_v2(&iDB, (const void*)iSqlBuffer.PtrZ() , -1, &st, (const void**) NULL);
- if( rc==SQLITE_OK ){
+ if(rc==SQLITE_OK)
+ {
+ Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
- if (rc == SQLITE_ROW) {
+ if (rc == SQLITE_ROW)
+ {
aNumUnplayed = sqlite3_column_int(st, 0);
- }
+ }
+ else
+ {
+ User::Leave(KErrNotFound);
+ }
+ CleanupStack::PopAndDestroy(); // st
}
-
- sqlite3_finalize(st);
}
-TUint CFeedEngine::DBGetFeedCount()
+TUint CFeedEngine::DBGetFeedCountL()
{
- DP("DBGetFeedCount BEGIN");
- sqlite3_stmt *st;
- int rc = sqlite3_prepare_v2(&iDB,"select count(*) from feeds" , -1, &st, (const char**) NULL);
- TUint size = 0;
+ DP("DBGetFeedCount BEGIN");
+ sqlite3_stmt *st;
+ int rc = sqlite3_prepare_v2(&iDB,"select count(*) from feeds" , -1, &st, (const char**) NULL);
+ TUint size = 0;
- if( rc==SQLITE_OK ){
- rc = sqlite3_step(st);
-
- if (rc == SQLITE_ROW) {
+ if( rc==SQLITE_OK )
+ {
+ Cleanup_sqlite3_finalize_PushL(st);
+ rc = sqlite3_step(st);
+
+ if (rc == SQLITE_ROW)
+ {
size = sqlite3_column_int(st, 0);
- }
- }
-
- sqlite3_finalize(st);
- DP1("DBGetFeedCount END=%d", size);
- return size;
+ }
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
+ CleanupStack::PopAndDestroy(); // st
+ }
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
+
+ DP1("DBGetFeedCount END=%d", size);
+ return size;
}
void CFeedEngine::DBLoadFeedsL()
@@ -876,7 +908,7 @@
iSortedFeeds.Reset();
CFeedInfo *feedInfo = NULL;
- _LIT(KSqlStatement, "select url, title, description, imageurl, imagefile, link, built, lastupdated, uid, feedtype, customtitle from feeds");
+ _LIT(KSqlStatement, "select url, title, description, imageurl, imagefile, link, built, lastupdated, uid, feedtype, customtitle, lasterror from feeds");
iSqlBuffer.Format(KSqlStatement);
sqlite3_stmt *st;
@@ -884,11 +916,13 @@
TLinearOrder sortOrder( CFeedEngine::CompareFeedsByTitle);
int rc = sqlite3_prepare16_v2(&iDB, (const void*)iSqlBuffer.PtrZ() , -1, &st, (const void**) NULL);
- Cleanup_sqlite3_finalize_PushL(st);
- if (rc==SQLITE_OK) {
+ if (rc==SQLITE_OK)
+ {
+ Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
- while(rc == SQLITE_ROW) {
+ while(rc == SQLITE_ROW)
+ {
feedInfo = CFeedInfo::NewLC();
const void *urlz = sqlite3_column_text16(st, 0);
@@ -909,8 +943,11 @@
const void *imagefilez = sqlite3_column_text16(st, 4);
TPtrC16 imagefile((const TUint16*)imagefilez);
- feedInfo->SetImageFileNameL(imagefile);
-
+ if (imagefile.Length() > 0)
+ {
+ feedInfo->SetImageFileNameL(imagefile, &iPodcastModel);
+ }
+
const void *linkz = sqlite3_column_text16(st, 5);
TPtrC16 link((const TUint16*)linkz);
feedInfo->SetDescriptionL(link);
@@ -924,11 +961,12 @@
feedInfo->SetLastUpdated(lastupdatedtime);
sqlite3_int64 customtitle = sqlite3_column_int64(st, 10);
- if (customtitle) {
+ if (customtitle)
+ {
feedInfo->SetCustomTitle();
- }
+ }
- TInt lasterror = sqlite3_column_int(st, 11);
+ sqlite3_int64 lasterror = sqlite3_column_int(st, 11);
feedInfo->SetLastError(lasterror);
TLinearOrder sortOrder( CFeedEngine::CompareFeedsByTitle);
@@ -938,10 +976,13 @@
CleanupStack::Pop(feedInfo);
rc = sqlite3_step(st);
+ }
+ CleanupStack::PopAndDestroy();//st
}
- }
-
- CleanupStack::PopAndDestroy();//st
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
DP("DBLoadFeeds END");
}
@@ -954,15 +995,15 @@
iSqlBuffer.Format(KSqlStatement, aFeedUid);
sqlite3_stmt *st;
-
- //DP1("SQL statement length=%d", iSqlBuffer.Length());
-
+
int rc = sqlite3_prepare16_v2(&iDB, (const void*)iSqlBuffer.PtrZ() , -1, &st, (const void**) NULL);
- if (rc==SQLITE_OK) {
+ if (rc==SQLITE_OK)
+ {
Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
- if (rc == SQLITE_ROW) {
+ if (rc == SQLITE_ROW)
+ {
feedInfo = CFeedInfo::NewLC();
const void *urlz = sqlite3_column_text16(st, 0);
@@ -1006,15 +1047,28 @@
feedInfo->SetLastError(lasterror);
CleanupStack::Pop(feedInfo);
- }
+ }
+ else
+ {
+ User::Leave(KErrNotFound);
+ }
CleanupStack::PopAndDestroy();//st
- }
+ }
+ else
+ {
+ User::Leave(KErrNotFound);
+ }
return feedInfo;
}
-EXPORT_C void CFeedEngine::UpdateFeedL(CFeedInfo *aItem)
+EXPORT_C void CFeedEngine::UpdateFeedInfoL(CFeedInfo *aItem)
{
+ if (iActiveFeed && iActiveFeed->Uid() == aItem->Uid())
+ {
+ User::Leave(KErrInUse);
+ }
+
DBUpdateFeedL(*aItem);
}
diff -r 3c0683f9f72c -r 70749e2f572d engine/src/FeedInfo.cpp
--- a/engine/src/FeedInfo.cpp Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/src/FeedInfo.cpp Thu Apr 29 11:55:32 2010 +0100
@@ -17,8 +17,13 @@
*/
#include "FeedInfo.h"
+#include "FeedEngine.h"
+#include "PodcastModel.h"
#include
#include
+#include
+#include
+_LIT(KMbmExtension, ".mbm");
EXPORT_C CFeedInfo* CFeedInfo::NewL()
{
@@ -47,22 +52,24 @@
copy->SetLinkL(Link());
copy->SetBuildDate(BuildDate());
copy->SetLastUpdated(LastUpdated());
- copy->SetImageFileNameL(ImageFileName());
- copy->iFeedIcon->Duplicate(iFeedIcon->Handle());
+ if (iFeedIcon) {
+ copy->SetFeedIcon(iFeedIcon);
+ }
+ copy->SetImageFileNameL(ImageFileName(), NULL);
if(CustomTitle())
{
copy->SetCustomTitle();
}
copy->SetLastError(LastError());
- copy->SetFeedIconIndex(FeedIconIndex());
+
CleanupStack::Pop(copy);
return copy;
}
+
CFeedInfo::CFeedInfo()
{
iCustomTitle = EFalse;
- iFeedIconIndex = -1;
}
EXPORT_C CFeedInfo::~CFeedInfo()
@@ -78,7 +85,7 @@
void CFeedInfo::ConstructL()
{
- iFeedIcon = new (ELeave) CFbsBitmap;
+ //iFeedIcon = new (ELeave) CFbsBitmap;
}
EXPORT_C const TDesC& CFeedInfo::Url() const
@@ -189,15 +196,39 @@
return iImageFileName ? *iImageFileName : KNullDesC();
}
-EXPORT_C void CFeedInfo::SetImageFileNameL(const TDesC& aFileName)
+EXPORT_C void CFeedInfo::SetImageFileNameL(const TDesC& aFileName, CPodcastModel* aPodcastModel)
{
+ DP1("CFeedInfo::SetImageFileNameL BEGIN, aFileName=%S", &aFileName);
+ TFileName cacheFileName;
+
if (iImageFileName)
{
delete iImageFileName;
iImageFileName = NULL;
}
- iImageFileName = aFileName.AllocL();
+
+ iImageFileName = aFileName.AllocL();
+ TParsePtrC parser(*iImageFileName);
+ cacheFileName = parser.DriveAndPath();
+ cacheFileName.Append(parser.Name());
+ cacheFileName.Append(KMbmExtension());
+
+ if (iFeedIcon) {
+ delete iFeedIcon;
}
+
+ if( BaflUtils::FileExists(CEikonEnv::Static()->FsSession(), cacheFileName) )
+ {
+ iFeedIcon = CEikonEnv::Static()->CreateBitmapL(cacheFileName, 0);
+ }
+ else if(aPodcastModel && BaflUtils::FileExists(CEikonEnv::Static()->FsSession(), ImageFileName() ))
+ {
+ // If this fails, no reason to worry
+ iFeedIcon = new CFbsBitmap();
+ TRAP_IGNORE(aPodcastModel->ImageHandler().LoadFileAndScaleL(FeedIcon(), ImageFileName(), TSize(64,56), *this, Uid()));
+ }
+ DP("CFeedInfo::SetImageFileNameL END");
+ }
EXPORT_C TBool CFeedInfo::CustomTitle() const
{
@@ -226,20 +257,25 @@
EXPORT_C void CFeedInfo::SetFeedIcon(CFbsBitmap* aBitmapToClone)
{
+ if (iFeedIcon)
+ {
+ delete iFeedIcon;
+ }
+
iFeedIcon->Duplicate(aBitmapToClone->Handle());
}
-void CFeedInfo::ImageOperationCompleteL(TInt /*aError*/, TUint /*aHandle*/)
- {
+void CFeedInfo::ImageOperationCompleteL(TInt aError, TUint /*aHandle*/, CPodcastModel& aPodcastModel)
+ {
+ if (aError == KErrNone && iImageFileName && iFeedIcon)
+ {
+ TFileName cacheFileName;
+ TParsePtrC parser(*iImageFileName);
+ cacheFileName = parser.DriveAndPath();
+ cacheFileName.Append(parser.Name());
+ cacheFileName.Append(KMbmExtension());
+ iFeedIcon->Save(cacheFileName);
+ aPodcastModel.FeedEngine().NotifyFeedUpdateComplete(this->iUid, KErrNone);
+ }
}
-
-EXPORT_C TInt CFeedInfo::FeedIconIndex() const
- {
- return iFeedIconIndex;
- }
-
-EXPORT_C void CFeedInfo::SetFeedIconIndex(TInt aIndex)
- {
- iFeedIconIndex = aIndex;
- }
diff -r 3c0683f9f72c -r 70749e2f572d engine/src/FeedParser.cpp
--- a/engine/src/FeedParser.cpp Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/src/FeedParser.cpp Thu Apr 29 11:55:32 2010 +0100
@@ -25,6 +25,7 @@
#include
#include
#include "debug.h"
+#include "podcastutils.h"
using namespace Xml;
const TInt KMaxParseBuffer = 1024;
@@ -176,6 +177,10 @@
HBufC* val16 = HBufC::NewLC(KMaxParseBuffer);
val16->Des().Copy(attr.Value().DesC());
iActiveShow->SetUrlL(*val16);
+
+ if (PodcastUtils::IsVideoShow(*val16)) {
+ iActiveShow->SetShowType(EVideoPodcast);
+ }
CleanupStack::PopAndDestroy(val16);
// length=...
} else if (attr16.Compare(KTagLength) == 0) {
@@ -369,6 +374,10 @@
case EStateItemLink:
if (iActiveShow->Url().Length() == 0) {
iActiveShow->SetUrlL(iBuffer);
+
+ if (PodcastUtils::IsVideoShow(iBuffer)) {
+ iActiveShow->SetShowType(EVideoPodcast);
+ }
}
iFeedState = EStateItem;
break;
diff -r 3c0683f9f72c -r 70749e2f572d engine/src/HttpClient.cpp
--- a/engine/src/HttpClient.cpp Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/src/HttpClient.cpp Thu Apr 29 11:55:32 2010 +0100
@@ -14,6 +14,7 @@
#include "HttpClient.h"
#include "connectionengine.h"
#include "settingsengine.h"
+#include "Podcatcher.pan"
const TInt KTempBufferSize = 100;
@@ -159,7 +160,7 @@
if (iResumeEnabled && iPodcastModel.FsSession().Entry(iCurrentFileName, entry) == KErrNone) {
DP1("Found file, with size=%d", entry.iSize);
// file exists, so we should probably resume
- rangeText.Format(_L8("bytes=%d-"), entry.iSize-KByteOverlap);
+ rangeText.Format(_L8("bytes=%d-"), (entry.iSize-KByteOverlap > 0 ? entry.iSize-KByteOverlap : 0));
iHandler->SetSaveFileName(iCurrentFileName, ETrue);
} else {
// otherwise just make sure the directory exists
@@ -192,7 +193,7 @@
TBool CHttpClient::GetL(const TDesC& aUrl, const TDesC& aFileName, TBool aSilent) {
DP("CHttpClient::Get START");
DP2("Getting '%S' to '%S'", &aUrl, &aFileName);
- __ASSERT_DEBUG((iIsActive==EFalse), User::Panic(_L("Already active"), -2));
+ __ASSERT_DEBUG((iIsActive==EFalse), Panic(EPodcatcherPanicAlreadyActive));
iCurrentURL.Copy(aUrl);
TInt urlError = iUriParser.Parse(iCurrentURL);
diff -r 3c0683f9f72c -r 70749e2f572d engine/src/HttpEventHandler.cpp
--- a/engine/src/HttpEventHandler.cpp Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/src/HttpEventHandler.cpp Thu Apr 29 11:55:32 2010 +0100
@@ -19,7 +19,6 @@
// HttpEventHandler.cpp
#include
#include
-
#include "HttpEventHandler.h"
#include "bautils.h"
#include "Httpclient.h"
@@ -67,10 +66,7 @@
// going to be a response body to save.
RHTTPResponse resp = aTransaction.Response();
iLastStatusCode = resp.StatusCode();
- RStringF statusStr = resp.StatusText();
- TBuf<32> statusStr16;
- statusStr16.Copy(statusStr.DesC());
- DP2("Status: %d (%S)", iLastStatusCode, &statusStr16);
+ DP1("Status: %d", iLastStatusCode);
// Dump the headers if we're being verbose
//DumpRespHeadersL(aTransaction);
@@ -105,10 +101,12 @@
{
iFileServ.Parse(iFileName, iParsedFileName);
TInt valid = iFileServ.IsValidName(iFileName);
+
if (!valid)
{
DP("The specified filename is not valid!.");
iSavingResponseBody = EFalse;
+ iHttpClient->ClientRequestCompleteL(KErrBadName);
}
else
{
@@ -116,21 +114,28 @@
TInt err = iRespBodyFile.Open(iFileServ, iParsedFileName.FullName(),EFileWrite);
if (err)
{
- DP("There was an error opening file");
+ DP2("There was an error opening file '%S', err=%d", &iParsedFileName.FullName(), err);
iSavingResponseBody = EFalse;
+ iHttpClient->ClientRequestCompleteL(KErrInUse);
User::Leave(err);
- } else {
+ }
+ else
+ {
int pos = -KByteOverlap;
- if((err=iRespBodyFile.Seek(ESeekEnd, pos)) != KErrNone) {
+ if((err=iRespBodyFile.Seek(ESeekEnd, pos)) != KErrNone)
+ {
DP("Failed to set position!");
+ iHttpClient->ClientRequestCompleteL(KErrWrite);
User::Leave(err);
+ }
+ iBytesDownloaded = (pos > 0) ? pos : 0;
+ iBytesTotal += iBytesDownloaded;
+ DP1("Total bytes is now %u", iBytesTotal);
+ DP1("Seeking end: %d", pos);
}
- iBytesDownloaded = (pos > 0) ? pos : 0;
- iBytesTotal += iBytesDownloaded;
- DP1("Total bytes is now %u", iBytesTotal);
- DP1("Seeking end: %d", pos);
- }
- } else {
+ }
+ else
+ {
TInt err = iRespBodyFile.Replace(iFileServ,
iParsedFileName.FullName(),
EFileWrite);
@@ -160,10 +165,10 @@
iRespBody->GetNextDataPart(bodyData);
iBytesDownloaded += bodyData.Length();
TInt error = iRespBodyFile.Write(bodyData);
-
+
// on writing error we close connection
if (error != KErrNone) {
- //aTransaction.Close();
+ iRespBodyFile.Close();
iCallbacks.FileError(error);
iHttpClient->ClientRequestCompleteL(error);
return;
@@ -224,10 +229,11 @@
}
}
-TInt CHttpEventHandler::MHFRunError(TInt aError, RHTTPTransaction /*aTransaction*/, const THTTPEvent& /*aEvent*/)
+TInt CHttpEventHandler::MHFRunError(TInt aError, RHTTPTransaction aTransaction, const THTTPEvent& /*aEvent*/)
{
DP1("MHFRunError fired with error code %d", aError);
-
+ aTransaction.Close();
+ TRAP_IGNORE(iHttpClient->ClientRequestCompleteL(aError));
return KErrNone;
}
diff -r 3c0683f9f72c -r 70749e2f572d engine/src/ImageHandler.cpp
--- a/engine/src/ImageHandler.cpp Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/src/ImageHandler.cpp Thu Apr 29 11:55:32 2010 +0100
@@ -31,12 +31,13 @@
// might leave.
// -----------------------------------------------------------------------------
//
-CImageHandler::CImageHandler( RFs& aFs )
+CImageHandler::CImageHandler( RFs& aFs, CPodcastModel& aPodcastModel )
: CActive(CActive::EPriorityStandard)
, iDecoder(NULL)
, iScaler(NULL)
, iFs(aFs)
, iSize(0,0)
+ , iPodcastModel(aPodcastModel)
{
}
@@ -56,9 +57,9 @@
// Two-phased constructor.
// -----------------------------------------------------------------------------
//
-EXPORT_C CImageHandler* CImageHandler::NewL(RFs& aFs)
+EXPORT_C CImageHandler* CImageHandler::NewL(RFs& aFs, CPodcastModel& aPodcastModel)
{
- CImageHandler* self = NewLC(aFs);
+ CImageHandler* self = NewLC(aFs, aPodcastModel);
CleanupStack::Pop();
return self;
}
@@ -68,9 +69,9 @@
// Two-phased constructor.
// -----------------------------------------------------------------------------
//
-EXPORT_C CImageHandler* CImageHandler::NewLC(RFs& aFs)
+EXPORT_C CImageHandler* CImageHandler::NewLC(RFs& aFs, CPodcastModel& aPodcastModel)
{
- CImageHandler* self = new (ELeave) CImageHandler(aFs);
+ CImageHandler* self = new (ELeave) CImageHandler(aFs, aPodcastModel);
CleanupStack::PushL( self );
self->ConstructL();
@@ -202,7 +203,7 @@
else
{
// Invoke callback.
- iCallback->ImageOperationCompleteL(iStatus.Int(), iHandle);
+ iCallback->ImageOperationCompleteL(iStatus.Int(), iHandle, iPodcastModel);
if(iCallbackQue.Count())
{
TInt loaderror = KErrNotFound;
diff -r 3c0683f9f72c -r 70749e2f572d engine/src/OpmlParser.cpp
--- a/engine/src/OpmlParser.cpp Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/src/OpmlParser.cpp Thu Apr 29 11:55:32 2010 +0100
@@ -96,7 +96,15 @@
if(str.CompareF(KTagOutline) == 0) {
iOpmlState = EStateOpmlOutline;
}
- break;
+
+ // there are two variations on OPML, where the tags sit either
+ // directly below , or inside a collective
+ // by checking if the has arguments, we can support both
+ // by falling through to the nextstate
+ if (aAttributes.Count() == 0)
+ {
+ break;
+ }
case EStateOpmlOutline:
// SetLinkL(*val16);
hasUrl = ETrue;
- // text=...
+ // title=...
} else if (attr16.Compare(KTagTitle) == 0) {
newFeed->SetTitleL(*val16);
- newFeed->SetCustomTitle();
hasTitle = ETrue;
// description=
} else if (attr16.Compare(KTagDescription) == 0) {
newFeed->SetDescriptionL(*val16);
+ // text=
} else if (attr16.Compare(KTagText) == 0) {
if (!hasTitle) {
newFeed->SetTitleL(*val16);
- newFeed->SetCustomTitle();
hasTitle = ETrue;
}
}
@@ -148,6 +155,14 @@
newFeed->SetTitleL(newFeed->Url());
}
+ // if the title is the same as the URL, it is hardly a custom
+ // title, so let's replace it on update
+ if (newFeed->Title().Length() &&
+ newFeed->Url().Length() &&
+ newFeed->Title().Compare(newFeed->Url()) != 0) {
+ newFeed->SetCustomTitle();
+ }
+
if (iSearching) {
iFeedEngine.AddSearchResultL(newFeed);
CleanupStack::Pop(newFeed);
@@ -230,7 +245,7 @@
void COpmlParser::OnError(TInt aErrorCode)
{
DP1("COpmlParser::OnError %d", aErrorCode);
- iFeedEngine.OpmlParsingCompleteL(aErrorCode, iNumFeedsAdded);
+ TRAP_IGNORE(iFeedEngine.OpmlParsingCompleteL(aErrorCode, iNumFeedsAdded));
}
TAny* COpmlParser::GetExtendedInterface(const TInt32 /*aUid*/)
diff -r 3c0683f9f72c -r 70749e2f572d engine/src/PodcastModel.cpp
--- a/engine/src/PodcastModel.cpp Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/src/PodcastModel.cpp Thu Apr 29 11:55:32 2010 +0100
@@ -19,10 +19,11 @@
#include
#include "PodcastModel.h"
#include "FeedEngine.h"
-#include "SoundEngine.h"
#include "SettingsEngine.h"
#include "ShowEngine.h"
#include "connectionengine.h"
+#include "podcastutils.h"
+#include "Podcatcher.pan"
#include
#include
@@ -45,7 +46,6 @@
{
delete iFeedEngine;
- delete iSoundEngine;
delete iSettingsEngine;
delete iShowEngine;
@@ -78,7 +78,7 @@
iIapNameArray = new (ELeave) CDesCArrayFlat(KDefaultGranu);
iSNAPNameArray = new (ELeave) CDesCArrayFlat(KDefaultGranu);
iCmManager.OpenL();
- iImageHandler = CImageHandler::NewL(FsSession());
+ iImageHandler = CImageHandler::NewL(FsSession(), *this);
UpdateIAPListL();
UpdateSNAPListL();
@@ -86,10 +86,24 @@
iSettingsEngine = CSettingsEngine::NewL(*this);
iConnectionEngine = CConnectionEngine::NewL(*this);
+ TRAPD(err, OpenDBL());
+
+ if (err != KErrNone)
+ {
+ ResetDB();
+
+ TRAP(err, OpenDBL());
+
+ if (err != KErrNone)
+ {
+ Panic(EPodcatcherPanicDB);
+ }
+
+ }
+
iFeedEngine = CFeedEngine::NewL(*this);
iShowEngine = CShowEngine::NewL(*this);
- iSoundEngine = CSoundEngine::NewL(*this);
DP("CPodcastModel::ConstructL END");
}
@@ -199,11 +213,6 @@
return *iShowEngine;
}
-EXPORT_C CSoundEngine& CPodcastModel::SoundEngine()
-{
- return *iSoundEngine;
-}
-
EXPORT_C CSettingsEngine& CPodcastModel::SettingsEngine()
{
return *iSettingsEngine;
@@ -216,40 +225,8 @@
EXPORT_C void CPodcastModel::PlayPausePodcastL(CShowInfo* aPodcast, TBool aPlayOnInit)
{
-
- // special treatment if this podcast is already active
- if (iPlayingPodcast->Uid() == aPodcast->Uid() && SoundEngine().State() > ESoundEngineOpening ) {
- if (aPodcast->PlayState() == EPlaying) {
- SoundEngine().Pause();
- aPodcast->SetPosition(iSoundEngine->Position());
- aPodcast->SetPlayState(EPlayed);
- aPodcast->SetPlayState(EPlayed);
- } else {
- iSoundEngine->Play();
- }
- } else {
- // switching file, so save position
- iSoundEngine->Pause();
- if (iPlayingPodcast != NULL) {
- iPlayingPodcast->SetPosition(iSoundEngine->Position());
- }
-
- iSoundEngine->Stop(EFalse);
-
- // we play video podcasts through the external player
- if(aPodcast != NULL && aPodcast->ShowType() != EVideoPodcast) {
- DP1("Starting: %S", &(aPodcast->FileName()));
- TRAPD( error, iSoundEngine->OpenFileL(aPodcast->FileName(), aPlayOnInit) );
- if (error != KErrNone) {
- DP1("Error: %d", error);
- } else {
- iSoundEngine->SetPosition(aPodcast->Position().Int64() / 1000000);
- }
- }
-
- iPlayingPodcast = aPodcast;
+ // TODO: interact with MPX
}
-}
EXPORT_C CFeedInfo* CPodcastModel::ActiveFeedInfo()
{
@@ -277,33 +254,105 @@
}
}
+EXPORT_C void CPodcastModel::DropDB()
+ {
+ if (iDB != NULL)
+ {
+ sqlite3_close(iDB);
+ iDB = NULL;
+ }
+
+ TFileName dbFileName;
+ dbFileName.Copy(iSettingsEngine->PrivatePath());
+ dbFileName.Append(KDBFileName);
+
+ // remove the old DB file
+ if (BaflUtils::FileExists(iFsSession, dbFileName))
+ {
+ BaflUtils::DeleteFile(iFsSession, dbFileName);
+ }
+ }
+
+void CPodcastModel::ResetDB()
+ {
+ DP("CPodcastModel::ResetDB BEGIN");
+
+ DropDB();
+
+ TFileName dbFileName;
+ dbFileName.Copy(iSettingsEngine->PrivatePath());
+ dbFileName.Append(KDBFileName);
+
+ // remove the old DB file
+ if (BaflUtils::FileExists(iFsSession, dbFileName))
+ {
+ BaflUtils::DeleteFile(iFsSession, dbFileName);
+ }
+
+ // copy template to new DB
+ TFileName dbTemplate;
+ dbTemplate.Copy(iSettingsEngine->PrivatePath());
+ dbTemplate.Append(KDBTemplateFileName);
+
+ BaflUtils::CopyFile(iFsSession, dbTemplate,dbFileName);
+ iIsFirstStartup = ETrue;
+ DP("CPodcastModel::ResetDB END");
+ }
+
+
+void CPodcastModel::OpenDBL()
+ {
+ DP("CPodcastModel::OpenDBL BEGIN");
+
+ if (iDB != NULL)
+ {
+ sqlite3_close(iDB);
+ iDB = NULL;
+ }
+
+ TFileName dbFileName;
+ dbFileName.Copy(iSettingsEngine->PrivatePath());
+ dbFileName.Append(KDBFileName);
+
+ if (!BaflUtils::FileExists(iFsSession, dbFileName))
+ {
+ User::Leave(KErrNotFound);
+ }
+
+ if (iDB == NULL) {
+ // open DB
+ TBuf8 filename8;
+ filename8.Copy(dbFileName);
+ int rc = sqlite3_open((const char*) filename8.PtrZ(), &iDB);
+ if(rc != SQLITE_OK){
+ User::Leave(KErrCorrupt);
+ }
+
+ // do a test query
+ sqlite3_stmt *st;
+ rc = sqlite3_prepare_v2(iDB,"select count(*) from feeds" , -1, &st, (const char**) NULL);
+ if( rc==SQLITE_OK )
+ {
+ Cleanup_sqlite3_finalize_PushL(st);
+ rc = sqlite3_step(st);
+
+ if (rc != SQLITE_ROW)
+ {
+ User::Leave(KErrCorrupt);
+ }
+ CleanupStack::PopAndDestroy(); // st
+ }
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
+ }
+
+ DP("CPodcastModel::OpenDBL END");
+ }
+
sqlite3* CPodcastModel::DB()
{
- if (iDB == NULL) {
- TFileName dbFileName;
- iFsSession.PrivatePath(dbFileName);
- dbFileName.Append(KDBFileName);
- DP1("DB is at %S", &dbFileName);
-
- if (!BaflUtils::FileExists(iFsSession, dbFileName)) {
- TFileName dbTemplate;
- iFsSession.PrivatePath(dbTemplate);
- dbTemplate.Append(KDBTemplateFileName);
- DP1("No DB found, copying template from %S", &dbTemplate);
- BaflUtils::CopyFile(iFsSession, dbTemplate,dbFileName);
- iIsFirstStartup = ETrue;
- }
-
- TBuf8 filename8;
- filename8.Copy(dbFileName);
- int rc = rc = sqlite3_open((const char*) filename8.PtrZ(), &iDB);
- if( rc != SQLITE_OK){
- DP("Error loading DB");
- User::Panic(_L("Podcatcher"), 10);
- }
-
-
- }
return iDB;
}
@@ -369,7 +418,6 @@
CleanupStack::PopAndDestroy(table);
}
-
TInt CPodcastModel::GetIapId()
{
_LIT(KSetting, "IAP\\Id");
@@ -378,24 +426,6 @@
return iapId;
}
-EXPORT_C void CPodcastModel::GetAllShowsL()
- {
- iActiveShowList.ResetAndDestroy();
- iShowEngine->GetAllShowsL(iActiveShowList);
- }
-
-EXPORT_C void CPodcastModel::GetNewShowsL()
- {
- iActiveShowList.ResetAndDestroy();
- iShowEngine->GetNewShowsL(iActiveShowList);
- }
-
-EXPORT_C void CPodcastModel::GetShowsDownloadedL()
- {
- iActiveShowList.ResetAndDestroy();
- iShowEngine->GetShowsDownloadedL(iActiveShowList);
- }
-
EXPORT_C void CPodcastModel::GetShowsDownloadingL()
{
iActiveShowList.ResetAndDestroy();
@@ -405,6 +435,7 @@
EXPORT_C void CPodcastModel::GetShowsByFeedL(TUint aFeedUid)
{
iActiveShowList.ResetAndDestroy();
+ iShowEngine->CheckForDeletedShows(aFeedUid);
iShowEngine->GetShowsByFeedL(iActiveShowList, aFeedUid);
}
@@ -435,7 +466,7 @@
}
-void CPodcastModel::ImageOperationCompleteL(TInt /*aError*/, TUint /*aHandle*/)
+void CPodcastModel::ImageOperationCompleteL(TInt /*aError*/, TUint /*aHandle*/, CPodcastModel& /*aPodcastModel*/)
{
}
diff -r 3c0683f9f72c -r 70749e2f572d engine/src/PodcastUtils.cpp
--- a/engine/src/PodcastUtils.cpp Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/src/PodcastUtils.cpp Thu Apr 29 11:55:32 2010 +0100
@@ -306,3 +306,15 @@
ReplaceString(aString, _L(">"), _L(">"));
ReplaceString(aString, _L("&"), _L("&"));
}
+
+EXPORT_C TBool PodcastUtils::IsVideoShow(TDesC &aUrl)
+ {
+ if (aUrl.Find(KVideoFormat1) != KErrNotFound ||
+ aUrl.Find(KVideoFormat2) != KErrNotFound ||
+ aUrl.Find(KVideoFormat3) != KErrNotFound)
+ {
+ return ETrue;
+ }
+
+ return EFalse;
+ }
diff -r 3c0683f9f72c -r 70749e2f572d engine/src/SettingsEngine.cpp
--- a/engine/src/SettingsEngine.cpp Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/src/SettingsEngine.cpp Thu Apr 29 11:55:32 2010 +0100
@@ -19,7 +19,6 @@
#include
#include
#include "SettingsEngine.h"
-#include "SoundEngine.h"
#include "FeedEngine.h"
#include "ShowEngine.h"
@@ -224,6 +223,7 @@
{
TFileName privatePath;
iPodcastModel.FsSession().PrivatePath(privatePath);
+
TRAP_IGNORE(BaflUtils::EnsurePathExistsL(iPodcastModel.FsSession(), privatePath));
return privatePath;
}
diff -r 3c0683f9f72c -r 70749e2f572d engine/src/ShowEngine.cpp
--- a/engine/src/ShowEngine.cpp Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/src/ShowEngine.cpp Thu Apr 29 11:55:32 2010 +0100
@@ -24,7 +24,6 @@
#include "SettingsEngine.h"
#include
#include
-#include "SoundEngine.h"
#include "debug.h"
#include "PodcastUtils.h"
@@ -35,15 +34,6 @@
const TUint KMaxDownloadErrors = 3;
const TInt KMimeBufLength = 100;
-// Cleanup stack macro for SQLite3
-// TODO Move this to some common place.
-static void Cleanup_sqlite3_finalize_wrapper(TAny* handle)
- {
- sqlite3_finalize(static_cast(handle));
- }
-#define Cleanup_sqlite3_finalize_PushL(__handle) CleanupStack::PushL(TCleanupItem(&Cleanup_sqlite3_finalize_wrapper, __handle))
-
-
CShowEngine::CShowEngine(CPodcastModel& aPodcastModel) :
iPodcastModel(aPodcastModel),
iDB(*aPodcastModel.DB())
@@ -122,15 +112,14 @@
SuspendDownloads();
}
- DBRemoveAllDownloads();
+ DBRemoveAllDownloadsL();
NotifyDownloadQueueUpdatedL();
}
-EXPORT_C TBool CShowEngine::RemoveDownloadL(TUint aUid)
+EXPORT_C void CShowEngine::RemoveDownloadL(TUint aUid)
{
- DP("CShowEngine::RemoveDownload\t Trying to remove download");
+ DP("CShowEngine::RemoveDownloadL BEGIN");
- TBool retVal = EFalse;
TBool resumeAfterRemove = EFalse;
// if trying to remove the present download, we first stop it
if (!iPodcastModel.SettingsEngine().DownloadSuspended() && iShowDownloading != NULL
@@ -138,6 +127,10 @@
{
DP("CShowEngine::RemoveDownload\t This is the active download, we suspend downloading");
SuspendDownloads();
+
+ // partial downloads should be removed
+ BaflUtils::DeleteFile(iPodcastModel.FsSession(), iShowDownloading->FileName());
+
resumeAfterRemove = ETrue;
}
@@ -148,25 +141,21 @@
DBUpdateShowL(*info);
delete info;
}
- DBRemoveDownload(aUid);
+
+ DBRemoveDownloadL(aUid);
- // partial downloads should be removed
- if (iShowDownloading)
+ if (resumeAfterRemove)
{
- BaflUtils::DeleteFile(iPodcastModel.FsSession(), iShowDownloading->FileName());
+ ResumeDownloadsL();
}
-
- NotifyShowDownloadUpdatedL(-1, -1);
- NotifyDownloadQueueUpdatedL();
-
- if (resumeAfterRemove) {
- ResumeDownloadsL();
- }
+ else
+ {
+ NotifyShowDownloadUpdatedL(-1, -1);
+ NotifyDownloadQueueUpdatedL();
+ }
DownloadNextShowL();
- retVal = ETrue;
-
- return retVal;
+ DP("CShowEngine::RemoveDownloadL END");
}
void CShowEngine::Connected(CHttpClient* /*aClient*/)
@@ -195,16 +184,11 @@
}
}
-TBool CShowEngine::GetShowL(CShowInfo *info)
+void CShowEngine::GetShowL(CShowInfo *info)
{
CFeedInfo *feedInfo = iPodcastModel.FeedEngine().GetFeedInfoByUid(
info->FeedUid());
- if (feedInfo == NULL)
- {
- DP("Feed not found for this show!");
- return EFalse;
- }
-
+
TFileName filePath;
filePath.Copy(iPodcastModel.SettingsEngine().BaseDir());
@@ -221,10 +205,10 @@
filePath.Append(relPath);
info->SetFileNameL(filePath);
- return iShowClient->GetL(info->Url(), filePath);
+ User::LeaveIfError(iShowClient->GetL(info->Url(), filePath));
}
-EXPORT_C TBool CShowEngine::AddShowL(const CShowInfo& aItem)
+EXPORT_C void CShowEngine::AddShowL(const CShowInfo& aItem)
{
DP1("CShowEngine::AddShowL, title=%S", &aItem.Title());
CShowInfo *showInfo = DBGetShowByUidL(aItem.Uid());
@@ -232,12 +216,11 @@
if (showInfo == NULL)
{
DBAddShowL(aItem);
- return ETrue;
}
else
{
delete showInfo;
- return EFalse;
+ User::Leave(KErrAlreadyExists);
}
}
@@ -271,7 +254,7 @@
{
if (iShowDownloading != NULL)
{
- DP1("CShowEngine::Complete\tDownload of file: %S is complete", &iShowDownloading->FileName());
+ DP2("CShowEngine::CompleteL file=%S, aError=%d", &iShowDownloading->FileName(), aError);
if(aError != KErrCouldNotConnect)
{
if(aError == KErrDisconnected && iPodcastModel.SettingsEngine().DownloadSuspended())
@@ -300,7 +283,7 @@
iShowDownloading->SetDownloadState(EDownloaded);
DBUpdateShowL(*iShowDownloading);
- DBRemoveDownload(iShowDownloading->Uid());
+ DBRemoveDownloadL(iShowDownloading->Uid());
AddShowToMpxCollection(*iShowDownloading);
NotifyShowFinishedL(aError);
iDownloadErrors = 0;
@@ -314,20 +297,28 @@
{
iShowDownloading->SetDownloadState(EFailedDownload);
DBUpdateShowL(*iShowDownloading);
- DBRemoveDownload(iShowDownloading->Uid());
+ DBRemoveDownloadL(iShowDownloading->Uid());
NotifyShowFinishedL(aError);
delete iShowDownloading;
iShowDownloading = NULL;
}
+ else if (aError == KErrDiskFull)
+ {
+ // stop downloading immediately if disk is full
+ iShowDownloading->SetDownloadState(EQueued);
+ DBUpdateShowL(*iShowDownloading);
+ iDownloadErrors = KMaxDownloadErrors;
+ }
else // other kind of error, missing network etc, reque this show
{
iShowDownloading->SetDownloadState(EQueued);
DBUpdateShowL(*iShowDownloading);
}
+ NotifyDownloadQueueUpdatedL();
iDownloadErrors++;
- if (iDownloadErrors > KMaxDownloadErrors)
+ if (iDownloadErrors >= KMaxDownloadErrors)
{
DP("Too many downloading errors, suspending downloads");
iPodcastModel.SettingsEngine().SetDownloadSuspended(ETrue);
@@ -475,6 +466,10 @@
}
CleanupStack::PopAndDestroy();//st
}
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
// delete downloads that don't have a show
@@ -485,8 +480,13 @@
if (rc == SQLITE_OK)
{
+ Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
- sqlite3_finalize(st);
+ CleanupStack::PopAndDestroy(); // st
+ }
+ else
+ {
+ User::Leave(KErrCorrupt);
}
}
@@ -520,8 +520,16 @@
DBFillShowInfoFromStmtL(st, showInfo);
CleanupStack::Pop(showInfo);
}
+ else
+ {
+ User::Leave(KErrUnknown);
+ }
CleanupStack::PopAndDestroy();//st
}
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
return showInfo;
}
@@ -556,10 +564,14 @@
}
CleanupStack::PopAndDestroy();//st
}
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
DP("CShowEngine::DBGetShowsByFeed END");
}
-TUint CShowEngine::DBGetDownloadsCount()
+TUint CShowEngine::DBGetDownloadsCountL()
{
DP("CShowEngine::DBGetDownloadsCount");
@@ -574,13 +586,23 @@
if (rc == SQLITE_OK)
{
+ Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
if (rc == SQLITE_ROW)
{
count = sqlite3_column_int(st, 0);
}
- sqlite3_finalize(st);
+ else
+ {
+ User::Leave(KErrUnknown);
+ }
+
+ CleanupStack::PopAndDestroy(); //st
+ }
+ else
+ {
+ User::Leave(KErrCorrupt);
}
return count;
}
@@ -615,6 +637,10 @@
}
CleanupStack::PopAndDestroy();//st
}
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
}
void CShowEngine::DBGetNewShowsL(RShowInfoArray& aShowArray)
@@ -642,9 +668,13 @@
}
CleanupStack::PopAndDestroy();//st
}
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
}
-void CShowEngine::DBDeleteOldShowsByFeed(TUint aFeedUid)
+void CShowEngine::DBDeleteOldShowsByFeedL(TUint aFeedUid)
{
DP("CShowEngine::DBDeleteOldShows");
@@ -667,6 +697,10 @@
rc = sqlite3_step(st);
sqlite3_finalize(st);
}
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
_LIT(KSqlStatement2, "delete from downloads where uid not in (select downloads.uid from shows, downloads where shows.uid=downloads.uid)");
iSqlBuffer.Format(KSqlStatement2);
@@ -678,6 +712,10 @@
rc = sqlite3_step(st);
sqlite3_finalize(st);
}
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
}
void CShowEngine::DBFillShowInfoFromStmtL(sqlite3_stmt *st, CShowInfo* showInfo)
@@ -734,7 +772,7 @@
showInfo->SetLastError(lasterror);
}
-TBool CShowEngine::DBAddShowL(const CShowInfo& aItem)
+void CShowEngine::DBAddShowL(const CShowInfo& aItem)
{
DP2("CShowEngine::DBAddShow, title=%S, URL=%S", &aItem.Title(), &aItem.Url());
@@ -764,28 +802,24 @@
int rc = sqlite3_prepare16_v2(&iDB, (const void*) iSqlBuffer.PtrZ(), -1,
&st, (const void**) NULL);
+
if (rc == SQLITE_OK)
{
+ Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
- if (rc == SQLITE_DONE)
+ if (rc != SQLITE_DONE)
{
- sqlite3_finalize(st);
- return ETrue;
+ User::Leave(KErrAlreadyExists);
}
- else
- {
- sqlite3_finalize(st);
- }
+ CleanupStack::PopAndDestroy(); // st
}
else
{
- DP1("SQLite rc=%d", rc);
+ User::Leave(KErrCorrupt);
}
-
- return EFalse;
}
-void CShowEngine::DBAddDownload(TUint aUid)
+void CShowEngine::DBAddDownloadL(TUint aUid)
{
DP1("CShowEngine::DBAddDownload, aUid=%u", aUid);
@@ -798,13 +832,21 @@
if (rc == SQLITE_OK)
{
+ Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
+ if (rc != SQLITE_DONE)
+ {
+ User::Leave(KErrUnknown);
+ }
+ CleanupStack::PopAndDestroy(); // st
}
-
- sqlite3_finalize(st);
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
}
-TBool CShowEngine::DBUpdateShowL(CShowInfo& aItem)
+void CShowEngine::DBUpdateShowL(CShowInfo& aItem)
{
DP1("CShowEngine::DBUpdateShow, title='%S'", &aItem.Title());
@@ -837,27 +879,22 @@
if (rc == SQLITE_OK)
{
- rc = sqlite3_step(st);
+ Cleanup_sqlite3_finalize_PushL(st);
+ rc = sqlite3_step(st);
- if (rc == SQLITE_DONE)
+ if (rc != SQLITE_DONE)
{
- sqlite3_finalize(st);
- return ETrue;
+ User::Leave(KErrUnknown);
}
- else
- {
- sqlite3_finalize(st);
- }
+ CleanupStack::PopAndDestroy(); // st
}
else
{
- DP1("SQLite rc=%d", rc);
+ User::Leave(KErrCorrupt);
}
-
- return EFalse;
}
-TBool CShowEngine::DBDeleteShow(TUint aUid)
+void CShowEngine::DBDeleteShowL(TUint aUid)
{
DP("CShowEngine::DBDeleteShow");
@@ -866,33 +903,27 @@
sqlite3_stmt *st;
- //DP1("SQL: %S", &iSqlBuffer.Left(KSqlDPLen));
int rc = sqlite3_prepare16_v2(&iDB, (const void*) iSqlBuffer.PtrZ(), -1,
&st, (const void**) NULL);
if (rc == SQLITE_OK)
{
+ Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
- if (rc == SQLITE_DONE)
+ if (rc != SQLITE_DONE)
{
- sqlite3_finalize(st);
- return ETrue;
+ User::Leave(KErrUnknown);
}
- else
- {
- sqlite3_finalize(st);
- }
+ CleanupStack::PopAndDestroy(); // st
}
else
{
- DP1("SQLite rc=%d", rc);
+ User::Leave(KErrCorrupt);
}
-
- return EFalse;
}
-TBool CShowEngine::DBDeleteAllShowsByFeed(TUint aFeedUid)
+void CShowEngine::DBDeleteAllShowsByFeedL(TUint aFeedUid)
{
DP("CShowEngine::DBDeleteAllShowsByFeed");
@@ -901,33 +932,27 @@
sqlite3_stmt *st;
- //DP1("SQL: %S", &iSqlBuffer.Left(KSqlDPLen));
int rc = sqlite3_prepare16_v2(&iDB, (const void*) iSqlBuffer.PtrZ(), -1,
&st, (const void**) NULL);
if (rc == SQLITE_OK)
{
+ Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
- if (rc == SQLITE_DONE)
+ if (rc != SQLITE_DONE)
{
- sqlite3_finalize(st);
- return ETrue;
+ User::Leave(KErrUnknown);
}
- else
- {
- sqlite3_finalize(st);
- }
+ CleanupStack::PopAndDestroy(); // st
}
else
{
- DP1("SQLite rc=%d", rc);
+ User::Leave(KErrCorrupt);
}
-
- return EFalse;
}
-void CShowEngine::DBRemoveAllDownloads()
+void CShowEngine::DBRemoveAllDownloadsL()
{
DP("CShowEngine::DBRemoveAllDownloads");
@@ -944,6 +969,10 @@
rc = sqlite3_step(st);
sqlite3_finalize(st);
}
+ else
+ {
+ User::Leave(KErrCorrupt);
+ }
_LIT(KSqlStatement2, "update shows set downloadstate=0 where downloadstate=1");
iSqlBuffer.Format(KSqlStatement2);
@@ -953,13 +982,22 @@
if (rc == SQLITE_OK)
{
+ Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
- sqlite3_finalize(st);
+ if (rc != SQLITE_DONE)
+ {
+ User::Leave(KErrUnknown);
+ }
+ CleanupStack::PopAndDestroy(); // st
+ }
+ else
+ {
+ User::Leave(KErrCorrupt);
}
}
-void CShowEngine::DBRemoveDownload(TUint aUid)
+void CShowEngine::DBRemoveDownloadL(TUint aUid)
{
DP("CShowEngine::DBRemoveDownload");
@@ -973,8 +1011,17 @@
if (rc == SQLITE_OK)
{
+ Cleanup_sqlite3_finalize_PushL(st);
rc = sqlite3_step(st);
- sqlite3_finalize(st);
+ if (rc != SQLITE_DONE)
+ {
+ User::Leave(KErrUnknown);
+ }
+ CleanupStack::PopAndDestroy(); // st
+ }
+ else
+ {
+ User::Leave(KErrCorrupt);
}
}
@@ -1065,11 +1112,6 @@
if (aShowInfoArray[i]->PlayState() == EPlayed
&& aShowInfoArray[i]->FileName().Length() > 0)
{
- if (CompareShowsByUid(*(iPodcastModel.PlayingPodcast()), *(aShowInfoArray[i]))
- && iPodcastModel.SoundEngine().State() != ESoundEngineNotInitialized)
- {
- iPodcastModel.SoundEngine().Stop();
- }
BaflUtils::DeleteFile(iPodcastModel.FsSession(), aShowInfoArray[i]->FileName());
aShowInfoArray[i]->SetDownloadState(ENotDownloaded);
DBUpdateShowL(*aShowInfoArray[i]);
@@ -1086,6 +1128,13 @@
for (TInt i = count - 1; i >= 0; i--)
{
+ if (iShowDownloading && iShowDownloading->Uid() == array[i]->Uid())
+ {
+ // trying to delete the active download
+ RemoveDownloadL(iShowDownloading->Uid());
+ }
+
+ // delete downloaded file
if (array[i]->FileName().Length() > 0)
{
if (aDeleteFiles)
@@ -1095,12 +1144,20 @@
}
}
array.ResetAndDestroy();
- DBDeleteAllShowsByFeed(aFeedUid);
+
+ // delete all shows from DB
+ DBDeleteAllShowsByFeedL(aFeedUid);
+
+ // this will clear out deleted shows from the download queue
+ DBGetAllDownloadsL(array);
+ array.ResetAndDestroy();
+
+ NotifyDownloadQueueUpdatedL();
}
-EXPORT_C void CShowEngine::DeleteOldShowsByFeed(TUint aFeedUid)
+EXPORT_C void CShowEngine::DeleteOldShowsByFeedL(TUint aFeedUid)
{
- DBDeleteOldShowsByFeed(aFeedUid);
+ DBDeleteOldShowsByFeedL(aFeedUid);
}
EXPORT_C void CShowEngine::DeleteShowL(TUint aShowUid, TBool aRemoveFile)
@@ -1153,14 +1210,17 @@
EXPORT_C TInt CShowEngine::GetNumDownloadingShows()
{
- return (const TInt) DBGetDownloadsCount();
+ TUint count = 0;
+ TRAP_IGNORE(count = DBGetDownloadsCountL());
+
+ return (const TInt) count;
}
EXPORT_C void CShowEngine::AddDownloadL(CShowInfo& aInfo)
{
aInfo.SetDownloadState(EQueued);
DBUpdateShowL(aInfo);
- DBAddDownload(aInfo.Uid());
+ DBAddDownloadL(aInfo.Uid());
DownloadNextShowL();
}
@@ -1168,7 +1228,7 @@
{
DP("CShowEngine::DownloadNextShowL BEGIN");
// Check if we have anything in the download queue
- const TInt count = DBGetDownloadsCount();
+ const TInt count = DBGetDownloadsCountL();
DP("CShowEngine::DownloadNextShow\tTrying to start new download");DP1("CShowEngine::DownloadNextShow\tShows in download queue %d", count);
if (count > 0)
@@ -1189,41 +1249,41 @@
}
else
{
-
- // Start the download
+ if (iShowDownloading) {
+ delete iShowDownloading;
+ }
- CShowInfo *info = DBGetNextDownloadL();
+ // Start the download
+ iShowDownloading = DBGetNextDownloadL();
- while(info != NULL)
+ while(iShowDownloading != NULL)
{
- TBool getOk = EFalse;
- DP1("CShowEngine::DownloadNextShow\tDownloading: %S", &(info->Title()));
- info->SetDownloadState(EDownloading);
- info->SetLastError(KErrNone);
- DBUpdateShowL(*info);
- iShowDownloading = info;
+ DP1("CShowEngine::DownloadNextShow\tDownloading: %S", &(iShowDownloading->Title()));
+ iShowDownloading->SetDownloadState(EDownloading);
+ iShowDownloading->SetLastError(KErrNone);
+ DBUpdateShowL(*iShowDownloading);
// Inform the observers
// important to do this after we change download state
NotifyDownloadQueueUpdatedL();
- TRAPD(error,getOk = GetShowL(info));
- if (error != KErrNone || !getOk)
- {
- info->SetDownloadState(EFailedDownload);
- DBRemoveDownload(info->Uid());
- DBUpdateShowL(*info);
- info = DBGetNextDownloadL();
-
- if(info == NULL)
- {
- iPodcastModel.SettingsEngine().SetDownloadSuspended(ETrue);
- iShowDownloading = NULL;
- }
- }
- else
+ TRAPD(error,GetShowL(iShowDownloading));
+ if (error == KErrNone)
{
break;
}
+ else
+ {
+ iShowDownloading->SetDownloadState(EFailedDownload);
+ DBRemoveDownloadL(iShowDownloading->Uid());
+ DBUpdateShowL(*iShowDownloading);
+ CleanupStack::PopAndDestroy(iShowDownloading);
+
+ iShowDownloading = DBGetNextDownloadL();
+ if(iShowDownloading == NULL)
+ {
+ iPodcastModel.SettingsEngine().SetDownloadSuspended(ETrue);
+ }
+ }
}
}
}
@@ -1241,7 +1301,7 @@
const TInt count = iObservers.Count();
for (TInt i = 0; i < count; i++)
{
- iObservers[i]->DownloadQueueUpdatedL(1, DBGetDownloadsCount() - 1);
+ iObservers[i]->DownloadQueueUpdatedL(1, DBGetDownloadsCountL() - 1);
}
}
@@ -1295,7 +1355,35 @@
void CShowEngine::FileError(TUint /*aError*/)
{
- //TODO: Error dialog
- //StopDownloads();
iDownloadErrors = KMaxDownloadErrors;
}
+
+EXPORT_C void CShowEngine::CheckForDeletedShows(TUint aFeedUid)
+ {
+ RShowInfoArray shows;
+
+ TRAPD(err, DBGetShowsByFeedL(shows, aFeedUid));
+
+ if (err != KErrNone)
+ {
+ // probably a catastrophic error, but it doesn't
+ // matter for this method
+ return;
+ }
+
+ for (int i=0;iDownloadState() == EDownloaded && shows[i]->FileName() != KNullDesC)
+ {
+ if(!BaflUtils::FileExists(iPodcastModel.FsSession(),shows[i]->FileName()))
+ {
+ // file doesn't exist anymore, assume it was deleted from outside
+ DP1("Show %S does not exist on disk, flagging as non downloaded", &shows[i]->FileName());
+ shows[i]->SetDownloadState(ENotDownloaded);
+ shows[i]->SetPlayState(EPlayed);
+ TRAP_IGNORE(DBUpdateShowL(*shows[i]));
+ }
+ }
+ }
+ }
+
diff -r 3c0683f9f72c -r 70749e2f572d engine/src/ShowInfo.cpp
--- a/engine/src/ShowInfo.cpp Wed Mar 10 10:50:53 2010 +0000
+++ b/engine/src/ShowInfo.cpp Thu Apr 29 11:55:32 2010 +0100
@@ -217,10 +217,22 @@
EXPORT_C CShowInfo::CShowInfo(CShowInfo *aInfo)
{
+ if (iTitle)
+ delete iTitle;
iTitle = aInfo->Title().Alloc();
+
+ if(iUrl)
+ delete iUrl;
iUrl = aInfo->Url().Alloc();
+
+ if (iDescription)
+ delete iDescription;
iDescription = aInfo->Description().Alloc();
+
+ if (iFileName)
+ delete iFileName;
iFileName = aInfo->FileName().Alloc();
+
iPosition = aInfo->Position();
iPlayTime = aInfo->PlayTime();
iPlayState = aInfo->PlayState();
diff -r 3c0683f9f72c -r 70749e2f572d group/bld.inf
--- a/group/bld.inf Wed Mar 10 10:50:53 2010 +0000
+++ b/group/bld.inf Thu Apr 29 11:55:32 2010 +0100
@@ -17,7 +17,8 @@
*/
PRJ_PLATFORMS
-DEFAULT
+GCCE
+WINSCW
PRJ_MMPFILES
@@ -27,28 +28,12 @@
PRJ_MMPFILES
..\engine\group\engine.mmp
+
+gnumakefile ..\application\group\icons.mk
..\application\group\Podcast.mmp
-PRJ_EXTENSIONS
-
-START EXTENSION s60/mifconv
-OPTION TARGETFILE Podcast.mif
-OPTION HEADERFILE Podcast.mbg
-OPTION SOURCEDIR ../application/data/images
-OPTION SOURCES \
- -c16,1 podcatcher_64px\
- -c16,1 Audio\
- -c16,1 Audio_new\
- -c16,1 Audio_queued\
- -c16,1 Audio_downloading\
- -c16,1 Audio_downloaded\
- -c16,1 Audio_downloaded_new\
- -c16,1 Audio_failed\
- -c16,1 Audio_suspended\
- -c16,1 Feed
-END
-
PRJ_EXPORTS
+..\engine\config\podcatcher.sqlite \epoc32\winscw\c\private\A0009D00\podcatcher.sqlite.template
..\engine\config\defaultfeeds.xml \epoc32\winscw\c\private\A0009D00\defaultfeeds.xml
..\engine\config\testfeeds.xml \epoc32\winscw\c\data\testfeeds.xml
..\application\help\podcatcher.hlp \epoc32\winscw\c\resource\help\podcatcher.hlp