engine/sqlite/src/vdbe.h
changeset 97 3903521a36da
parent 96 87e863f6f840
child 98 5f9e7e14eb11
--- a/engine/sqlite/src/vdbe.h	Wed May 26 10:44:32 2010 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,152 +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.
-**
-*************************************************************************
-** Header file for the Virtual DataBase Engine (VDBE)
-**
-** This header defines the interface to the virtual database engine
-** or VDBE.  The VDBE implements an abstract machine that runs a
-** simple program to access and modify the underlying database.
-**
-** $Id: vdbe.h 1282 2008-11-13 09:31:33Z LarsPson $
-*/
-#ifndef _SQLITE_VDBE_H_
-#define _SQLITE_VDBE_H_
-#include <stdio.h>
-
-/*
-** A single VDBE is an opaque structure named "Vdbe".  Only routines
-** in the source file sqliteVdbe.c are allowed to see the insides
-** of this structure.
-*/
-typedef struct Vdbe Vdbe;
-
-/*
-** A single instruction of the virtual machine has an opcode
-** and as many as three operands.  The instruction is recorded
-** as an instance of the following structure:
-*/
-struct VdbeOp {
-  u8 opcode;          /* What operation to perform */
-  int p1;             /* First operand */
-  int p2;             /* Second parameter (often the jump destination) */
-  char *p3;           /* Third parameter */
-  int p3type;         /* One of the P3_xxx constants defined below */
-#ifdef VDBE_PROFILE
-  int cnt;            /* Number of times this instruction was executed */
-  long long cycles;   /* Total time spend executing this instruction */
-#endif
-};
-typedef struct VdbeOp VdbeOp;
-
-/*
-** A smaller version of VdbeOp used for the VdbeAddOpList() function because
-** it takes up less space.
-*/
-struct VdbeOpList {
-  u8 opcode;          /* What operation to perform */
-  signed char p1;     /* First operand */
-  short int p2;       /* Second parameter (often the jump destination) */
-  char *p3;           /* Third parameter */
-};
-typedef struct VdbeOpList VdbeOpList;
-
-/*
-** Allowed values of VdbeOp.p3type
-*/
-#define P3_NOTUSED    0   /* The P3 parameter is not used */
-#define P3_DYNAMIC  (-1)  /* Pointer to a string obtained from sqliteMalloc() */
-#define P3_STATIC   (-2)  /* Pointer to a static string */
-#define P3_COLLSEQ  (-4)  /* P3 is a pointer to a CollSeq structure */
-#define P3_FUNCDEF  (-5)  /* P3 is a pointer to a FuncDef structure */
-#define P3_KEYINFO  (-6)  /* P3 is a pointer to a KeyInfo structure */
-#define P3_VDBEFUNC (-7)  /* P3 is a pointer to a VdbeFunc structure */
-#define P3_MEM      (-8)  /* P3 is a pointer to a Mem*    structure */
-#define P3_TRANSIENT (-9) /* P3 is a pointer to a transient string */
-#define P3_VTAB     (-10) /* P3 is a pointer to an sqlite3_vtab structure */
-#define P3_MPRINTF  (-11) /* P3 is a string obtained from sqlite3_mprintf() */
-#define P3_REAL     (-12) /* P3 is a 64-bit floating point value */
-#define P3_INT64    (-13) /* P3 is a 64-bit signed integer */
-
-/* When adding a P3 argument using P3_KEYINFO, a copy of the KeyInfo structure
-** is made.  That copy is freed when the Vdbe is finalized.  But if the
-** argument is P3_KEYINFO_HANDOFF, the passed in pointer is used.  It still
-** gets freed when the Vdbe is finalized so it still should be obtained
-** from a single sqliteMalloc().  But no copy is made and the calling
-** function should *not* try to free the KeyInfo.
-*/
-#define P3_KEYINFO_HANDOFF (-9)
-
-/*
-** The Vdbe.aColName array contains 5n Mem structures, where n is the 
-** number of columns of data returned by the statement.
-*/
-#define COLNAME_NAME     0
-#define COLNAME_DECLTYPE 1
-#define COLNAME_DATABASE 2
-#define COLNAME_TABLE    3
-#define COLNAME_COLUMN   4
-#define COLNAME_N        5      /* Number of COLNAME_xxx symbols */
-
-/*
-** The following macro converts a relative address in the p2 field
-** of a VdbeOp structure into a negative number so that 
-** sqlite3VdbeAddOpList() knows that the address is relative.  Calling
-** the macro again restores the address.
-*/
-#define ADDR(X)  (-1-(X))
-
-/*
-** The makefile scans the vdbe.c source file and creates the "opcodes.h"
-** header file that defines a number for each opcode used by the VDBE.
-*/
-#include "opcodes.h"
-
-/*
-** Prototypes for the VDBE interface.  See comments on the implementation
-** for a description of what each of these routines does.
-*/
-Vdbe *sqlite3VdbeCreate(sqlite3*);
-int sqlite3VdbeAddOp(Vdbe*,int,int,int);
-int sqlite3VdbeOp3(Vdbe*,int,int,int,const char *zP3,int);
-int sqlite3VdbeAddOpList(Vdbe*, int nOp, VdbeOpList const *aOp);
-void sqlite3VdbeChangeP1(Vdbe*, int addr, int P1);
-void sqlite3VdbeChangeP2(Vdbe*, int addr, int P2);
-void sqlite3VdbeJumpHere(Vdbe*, int addr);
-void sqlite3VdbeChangeToNoop(Vdbe*, int addr, int N);
-void sqlite3VdbeChangeP3(Vdbe*, int addr, const char *zP1, int N);
-void sqlite3VdbeUsesBtree(Vdbe*, int);
-VdbeOp *sqlite3VdbeGetOp(Vdbe*, int);
-int sqlite3VdbeMakeLabel(Vdbe*);
-void sqlite3VdbeDelete(Vdbe*);
-void sqlite3VdbeMakeReady(Vdbe*,int,int,int,int);
-int sqlite3VdbeFinalize(Vdbe*);
-void sqlite3VdbeResolveLabel(Vdbe*, int);
-int sqlite3VdbeCurrentAddr(Vdbe*);
-#ifdef SQLITE_DEBUG
-  void sqlite3VdbeTrace(Vdbe*,FILE*);
-#endif
-void sqlite3VdbeResetStepResult(Vdbe*);
-int sqlite3VdbeReset(Vdbe*);
-void sqlite3VdbeSetNumCols(Vdbe*,int);
-int sqlite3VdbeSetColName(Vdbe*, int, int, const char *, int);
-void sqlite3VdbeCountChanges(Vdbe*);
-sqlite3 *sqlite3VdbeDb(Vdbe*);
-void sqlite3VdbeSetSql(Vdbe*, const char *z, int n);
-void sqlite3VdbeSwap(Vdbe*,Vdbe*);
-
-#ifndef NDEBUG
-  void sqlite3VdbeComment(Vdbe*, const char*, ...);
-# define VdbeComment(X)  sqlite3VdbeComment X
-#else
-# define VdbeComment(X)
-#endif
-
-#endif