radioengine/utils/api/cradioenginelogger.h
branchRCL_3
changeset 20 93c594350b9a
parent 19 cce62ebc198e
--- a/radioengine/utils/api/cradioenginelogger.h	Tue Aug 31 15:15:02 2010 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,512 +0,0 @@
-/*
-* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - initial contribution.
-*
-* Contributors:
-*
-* Description:
-*
-*/
-
-#ifndef C_RADIOENGINELOGGER_H
-#define C_RADIOENGINELOGGER_H
-
-// System includes
-#include <e32base.h>
-
-// User includes
-#include "mradioenginelogger.h"
-
-/**
- * Main logging macro.
- * When the macro is defined, logging is on
- */
-#ifdef _DEBUG
-    #define LOGGING_ENABLED
-#endif
-
-#define LOGGING_LEVEL 1
-
-/**
- * Logging level macro definitions
- * Level 1 - No level macro needed. The trace is shown when logging is on.
- * Level 2 - Wrap log line with LEVEL2 macro. Traces of level 1 and 2 are shown.
- * Level 3 - Wrap log line with LEVEL3 macro. Traces of level 1, 2 and 3 are shown.
- */
-#if LOGGING_LEVEL == 2
-#   define LEVEL2( expr ) expr
-#   define LEVEL3( expr )
-#elif LOGGING_LEVEL == 3
-#   define LEVEL2( expr ) expr
-#   define LEVEL3( expr ) expr
-#else
-#   define LEVEL2( expr )
-#   define LEVEL3( expr )
-#endif
-
-#ifdef LOGGING_ENABLED
-
-/**
- * Debug var macros for all logging levels
- */
-#if LOGGING_LEVEL == 2
-#   define DEBUGVAR( var ) var
-#   define DEBUGVAR2( var ) var
-#   define DEBUGVAR3( var )
-#elif LOGGING_LEVEL == 3
-#   define DEBUGVAR( var ) var
-#   define DEBUGVAR2( var ) var
-#   define DEBUGVAR3( var ) var
-#else
-#   define DEBUGVAR( var ) var
-#   define DEBUGVAR2( var )
-#   define DEBUGVAR3( var )
-#endif
-
-/**
- * Log file path.
- * If the path points to memory card and the card is not present or is read only,
- * the log is written to C: drive.
- */
-_LIT( KLogFile, "c:\\logs\\radio\\radioenginelog.txt" );
-
-/**
- * Logging buffer length. Should be big enough to hold one line of text
- */
-const TInt KLogBufferLength = 512;
-
-
-// ===========================================================================
-// ===========================================================================
-//
-// BEGIN LOGGING MACROS. Use these to write log prints
-//
-// ===========================================================================
-// ===========================================================================
-
-// All macros except LOG_METHOD and LOG_METHOD_RET are enclosed in do { }while( 0 );
-// statements to make them form a complete code block that can be used anywhere.
-
-/**
- * Function entry, exit and leave logging.
- *
- *  @code
- *   LOG_METHOD( "CSomeClass::SomeFunctionL" );
- *  @endcode
- */
-#define LOG_METHOD( func ) TRadioMethodLogger ___methodLogger( _S( func ), _S( "" ) )
-
-/**
- * Function entry, exit and leave logging.
- * Gets the function name automatically
- *
- *  @code
- *   LOG_METHOD_AUTO;
- *  @endcode
- */
-// Substract 1 from MaxLength() because PtrZ() adds the zero terminator
-#define LOG_METHOD_AUTO \
-    TPtrC8 __ptr8( (const TUint8*)__PRETTY_FUNCTION__ ); \
-    TBuf<150> __buf; \
-    __buf.Copy( __ptr8.Left( __buf.MaxLength() - 1 ) ); \
-    TRadioMethodLogger ___methodLogger( __buf.PtrZ(), _S( "" ) )
-
-/**
- * Function entry, exit and leave logging. Logs also returned value
- * NOTE! At the moment return value is only logged in emulator builds.
- *
- *  @code
- *   // Function returns an integer value
- *   LOG_METHOD_RET( "CSomeClass::SomeFunctionL", "Error: %d" );
- *
- *   // Function returns an HBufC pointer
- *   LOG_METHOD_RET( "CSomeClass::SomeFunctionL", "HBufC: %S" );
- *  @endcode
- */
-#define LOG_METHOD_RET( func,fmt ) TRadioMethodLogger ___methodLogger( _S( func ), _S( fmt ) )
-
-/**
- * Function entry, exit and leave logging. Logs also returned value
- * Gets the function name automatically
- * NOTE! At the moment return value is only logged in emulator builds.
- *
- *  @code
- *   // Function returns an integer value
- *   LOG_METHOD_RET( "CSomeClass::SomeFunctionL", "Error: %d" );
- *
- *   // Function returns an HBufC pointer
- *   LOG_METHOD_RET( "CSomeClass::SomeFunctionL", "HBufC: %S" );
- *  @endcode
- */
-// Substract 1 from MaxLength() because PtrZ() adds the zero terminator
-#define LOG_METHOD_AUTO_RET( fmt ) \
-    TPtrC8 __ptr8( (const TUint8*)__PRETTY_FUNCTION__ ); \
-    TBuf<150> __buf; \
-    __buf.Copy( __ptr8.Left( __buf.MaxLength() - 1 ) ); \
-    TRadioMethodLogger ___methodLogger( __buf.PtrZ(), _S( fmt ) )
-
-/**
- * Simple assert macro that works like normal asserts. The expression ( expr ) is
- * expected to be true in which case nothing is done. If the expression is false the
- * statement ( stmt ) is executed.
- *
- * Note! As with normal asserts, do not put a function call as the expression because
- * it will not be executed when logging is off!
- *
- *  @code
- *   // Log error code if it is not KErrNone
- *   TRAPD( err, SomeFunctionL() );
- *   MTV_ASSERT( !err, LOG_FORMAT( "Operation failed. error: %d", err ) );
- *  @endcode
- */
-#define LOG_ASSERT( expr, stmt ) do { if ( !( expr )) { stmt; } }while( 0 )
-
-/**
- * Writes a formatted string to log. Accepts variable number of parameters
- *
- *  @code
- *   LOG_FORMAT( "Integer: %d", 1 );
- *   LOG_FORMAT( "Integer: %d Desc %S", 1, &desc );
- *   LOG_FORMAT( "Integer: %d Desc %S hex 0x%X", 1, &desc, 0xC0FFEE );
- *  @endcode
- */
-#define LOG_FORMAT( fmt,args...) do{MRadioEngineLogger::Logger()->AddIndent( KMarkerEngine()).AddFormat( _L( fmt ),args ).Commit();}while( 0 )
-
-/**
- * Writes current time to log. Example: Time: 13.9.2007 13:23:25.383750
- */
-#define LOG_CURRENT_TIME() do{MRadioEngineLogger::Logger()->AddIndent( KMarkerEngine()).AddTimestamp().Commit();}while( 0 )
-
-/**
- * Writes a time to log. Accepts a TTime as parameter
- *
- *  @code
- *   TTime now;
- *   now.HomeTime();
- *   LOG_TIME( now );
- *  @endcode
- */
-#define LOG_TIME( x ) do{MRadioEngineLogger::Logger()->AddIndent( KMarkerEngine()).AddTimestamp( x ).Commit();}while( 0 )
-
-/**
- * Writes a time to log. Accepts a string and a TTime as parameter
- *
- *  @code
- *   TTime now;
- *   now.HomeTime();
- *   LOG_TIME2( "Current time", now );
- *  @endcode
- */
-#define LOG_TIME2( desc, time ) do{MRadioEngineLogger::Logger()->AddIndent( KMarkerEngine()).Add( desc ).Add( ": " ).Add( time ).Commit();}while( 0 )
-
-/**
- * Clear the log contents
- */
-#define LOG_CLEAR() do{MRadioEngineLogger::Logger()->ClearLog();}while( 0 )
-
-/**
- * Construct a log line one item at a time. No newline at end
- */
-//#define LOG( x ) do{CRadioEngineLogger::Logger()->Add( x );}while( 0 )
-
-/**
- * Write a newline to log
- */
-#define LOG_NEWLINE() do{MRadioEngineLogger::Logger()->Commit();}while( 0 )
-
-/**
- * Macro that behaves like User::LeaveIfError except it logs the leave
- * The line "TInt __error_code = expr;" makes sure the expression is evaluated only once
- */
-#define LEAVEIFERROR( expr )                                                \
-    do {                                                                    \
-        TInt __err = expr;                                                  \
-        if ( __err )                                                        \
-            {                                                               \
-            _LIT( KExpression, #expr );                                     \
-            LOG_FORMAT( "%S leaving with code %d!", &KExpression, __err );  \
-            User::Leave( __err );                                           \
-            }                                                               \
-        } while( 0 )
-
-/**
- * Macro that behaves like User::Leave except it logs the leave
- * The line "TInt __error_code = expr;" makes sure the expression is evaluated only once
- */
-#define LEAVE( expr )                                   \
-    do {                                                \
-        TInt __err = expr;                              \
-        LOG_FORMAT( "Leaving with code %d!", __err );   \
-        User::Leave( __err );                           \
-        } while( 0 )
-
-/**
- * Macro that behaves like TRAP except it logs the possible error
- */
-#define TRAP_AND_LOG_ERR( err, expr )                               \
-    TRAP( err, expr );                                              \
-    if ( err )                                                      \
-        {                                                           \
-        _LIT( KExpression, #expr );                                 \
-        LOG_FORMAT( "%S failed with err %d", &KExpression, err );   \
-        }                                                           \
-
-/**
- * Macro that behaves like TRAPD except it logs the possible error
- */
-#define TRAPD_AND_LOG_ERR( err, expr )  \
-    TInt err = 0;                       \
-    TRAP_AND_LOG_ERR( err, expr )
-
-
-/**
- * Macro that behaves like TRAP_IGNORE except it logs the possible error
- */
-#define TRAP_IGNORE_AND_LOG_ERR( expr )     \
-    do {                                    \
-        TRAPD_AND_LOG_ERR( __err, expr );     \
-        } while ( 0 )
-
-/**
- * Write a single log line.
- */
-#define LOGGER_WRITE( x ) do{MRadioEngineLogger::Logger()->AddIndent( KMarkerEngine ).Add( _L8( x ) ).Commit();}while( 0 )
-#define LOG( x ) do{MRadioEngineLogger::Logger()->AddIndent( KMarkerEngine ).Add( x ).Commit();}while( 0 )
-//#define LOG2( x1, x2 ) do{CRadioEngineLogger::Logger()->AddIndent().Add( x1 ).Add( x2 ).Commit();}while( 0 )
-//#define LOG3( x1, x2, x3 ) do{CRadioEngineLogger::Logger()->AddIndent().Add( x1 ).Add( x2 ).Add( x3 ).Commit();}while( 0 )
-//#define LOG4( x1, x2, x3, x4 ) do{CRadioEngineLogger::Logger()->AddIndent().Add( x1 ).Add( x2 ).Add( x3 ).Add( x4 ).Commit();}while( 0 )
-//#define LOG5( x1, x2, x3, x4, x5 ) do{CRadioEngineLogger::Logger()->AddIndent().Add( x1 ).Add( x2 ).Add( x3 ).Add( x4 ).Add( x5 ).Commit();}while( 0 )
-
-// ===========================================================================
-// ===========================================================================
-//
-// END LOGGING MACROS. Do not use anything below this line directly!
-//
-// ===========================================================================
-// ===========================================================================
-
-
-#include <f32file.h>
-#include <e32debug.h>
-
-class TRadioMethodLogger;
-
-const TInt KTimestampLength = 40;
-typedef TBuf8<KTimestampLength> TTimestamp;
-
-/**
- * Logger for writing log to a file and RDebug
- *
- *  @lib mtvcommon.lib
- *  @since Live TV UI v1.0
- */
-NONSHARABLE_CLASS( CRadioEngineLogger ) : public CBase
-                                        , public MRadioEngineLogger
-                                        , public TDes16Overflow
-    {
-    friend class CRadioEngineTls;
-public:
-
-// from base class MRadioEngineLogger
-
-    MRadioEngineLogger& ClearLog();
-    MRadioEngineLogger& Add( const TDesC8& aMsg );
-    MRadioEngineLogger& Add( const TDesC& aMsg );
-    MRadioEngineLogger& Add( TInt aInt );
-    MRadioEngineLogger& Add( const TReal& aReal );
-    MRadioEngineLogger& Add( const char* aText );
-    MRadioEngineLogger& Add( const TAny* aPtr );
-    MRadioEngineLogger& Add( const TTime& aTime );
-    MRadioEngineLogger& AddTimestamp();
-    MRadioEngineLogger& AddFormat( TRefByValue<const TDesC> aFmt, ... );
-    MRadioEngineLogger& AddIndent( const TDesC& aMarker );
-    MRadioEngineLogger& AddIndentClear( const TDesC& aMarker );
-    MRadioEngineLogger& IncIndent();
-    MRadioEngineLogger& DecIndent();
-    MRadioEngineLogger& Commit( TBool aNewLine = ETrue );
-
-// from base class TDes16Overflow
-
-    /**
-     * Handles the overflow from AppendFormatList()
-     *
-     * @since Live TV UI v1.0
-     * @param aDes The 16-bit modifiable descriptor whose overflow results in the
-     *             call to this overflow handler.
-     */
-    void Overflow( TDes16 &aDes );
-
-private:
-
-    static CRadioEngineLogger* NewL( RFs& aFs );
-
-    ~CRadioEngineLogger();
-
-    CRadioEngineLogger( RFs& aFs );
-
-    void ConstructL();
-
-    /**
-     * Returns the amount of characters that still fit in the buffer
-     *
-     * @since Live TV UI v1.0
-     * @return Amount of space available
-     */
-    TInt Available() const;
-
-    /**
-     * Templated function to add either 8-bit or 16-bit descriptor to buffer
-     *
-     * @since Live TV UI v1.0
-     * @param aDesc Descriptor to add
-     */
-    template<class PTR, class DESC>
-    void AddDesC( const DESC& aDesc );
-
-    /**
-     * Parses the timestamp from the given TTime
-     *
-     * @since Live TV UI v1.0
-     * @param aTime Time to parse
-     * @param aTimestamp On return, the parsed timestamp
-     */
-    void ParseTimestamp( const TTime& aTime, TTimestamp& aTimestamp );
-
-private: // data
-
-    /**
-     * Reference to file server session.
-     */
-    RFs&    iFs;
-
-    /**
-     * File handle
-     */
-    RFile   iFile;
-
-    /**
-     * Name of the log file.
-     * Own.
-     */
-    HBufC*  iFileName;
-
-    /**
-     * Logging buffer. holds one log line at a time
-     */
-    TBuf8<KLogBufferLength> iBuf8;
-
-    /**
-     * Indentation
-     */
-    TInt    iIndent;
-
-    /**
-     * Flag to indicate whether or not timestamp has already been written to the beginning of line
-     */
-    TBool   iTimeStampWritten;
-
-    };
-
-/**
- * Helper class for method entry, exit and leave logging.
- * Used as automatic variable declared by LOG_METHOD() macro.
- */
-NONSHARABLE_CLASS( TRadioMethodLogger )
-    {
-public:
-
-    /**
-     * Constructor. Writes method entry log.
-     */
-    IMPORT_C TRadioMethodLogger( const TText* aFunc, const TText* aRetFormat );
-
-    /**
-     * Destructor. Writes method exit log.
-     */
-    IMPORT_C ~TRadioMethodLogger();
-
-private: // data
-
-    /**
-     * Pointer descriptor to function signature that is to be logged.
-     */
-    TPtrC iFunc;
-
-    /**
-     * Formatting string used to print the function return value
-     */
-    TPtrC iRetFormat;
-
-    };
-
-#else // LOGGING_ENABLED
-
-// Empty macro definitions for non logging build.
-
-#define LOG_METHOD_AUTO
-#define LOG_METHOD_AUTO_RET( fmt )
-
-#define LOG_METHOD( func )
-#define LOG_METHOD_RET( func,fmt )
-#define LOG_FORMAT( fmt,args...)
-#define LOG_ASSERT( expr, stmt )
-#define DEBUGVAR( var )
-#define DEBUGVAR2( var )
-#define DEBUGVAR3( var )
-
-#define LOG_CURRENT_TIME()
-#define LOG_TIME( x )
-#define LOG_TIME2( desc, time )
-
-#define LOG_CLEAR()
-#define LOG( x )
-#define LOG_NEWLINE()
-#define LOG1( x )
-#define LOG2( x1, x2 )
-#define LOG3( x1, x2, x3 )
-#define LOG4( x1, x2, x3, x4 )
-#define LOG5( x1, x2, x3, x4, x5 )
-
-// Default implementations for leave macros.
-// Note! These can NOT be empty macros because the errors would not be checked when logging is off
-#define LEAVEIFERROR( expr )    User::LeaveIfError( expr )
-#define LEAVE( expr )           User::Leave( expr )
-
-// Default implementation for trap macros
-// Note! As with leave macros, these can not be empty
-#define TRAP_AND_LOG_ERR( err,stmt )      TRAP( err, stmt )
-#define TRAPD_AND_LOG_ERR( err,stmt )     TRAPD( err, stmt )
-#define TRAP_IGNORE_AND_LOG_ERR( stmt )   TRAP_IGNORE( stmt )
-
-#define LOGGER_WRITE( x )
-
-// ===========================================================================
-// Dummy classes to keep the exports unchanged when logging is turned off
-// These can not be used.
-// ===========================================================================
-class RFs;
-NONSHARABLE_CLASS( CRadioEngineLogger ) : public CBase
-    {
-    friend class CRadioEngineImp;
-private:
-    static void InitializeL( RFs& aFs );
-    static void Release();
-    };
-
-NONSHARABLE_CLASS( TRadioMethodLogger )
-    {
-public:
-    IMPORT_C TRadioMethodLogger( const TText* /*aFunc*/, const TText* /*aRetFormat*/ );
-    IMPORT_C ~TRadioMethodLogger();
-    };
-
-#endif // LOGGING_ENABLED
-
-#endif // C_RADIOENGINELOGGER_H