inc/mpxvideo_debug.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 18 Jan 2010 20:21:12 +0200
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/*
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:   Debug print macros*
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*/
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// Version : %version: ou1cpsw#3 %
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#ifndef __MPXVIDEO_DEBUG_H__
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#define __MPXVIDEO_DEBUG_H__
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// INCLUDES
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#include <e32std.h>
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#include <e32svr.h>
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#include <e32des16.h>
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#include <e32property.h>
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#include <flogger.h>
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#include <e32def.h>
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// #define _MPX_FILE_LOGGING_
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#ifdef _DEBUG
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    #define FU_DEBUG RDebug::Print
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#else
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    #ifdef _MPX_FILE_LOGGING_
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        #define FU_DEBUG MPXDebug::FileLog
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    #else        
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        #define FU_DEBUG MPXDebug::NullLog
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    #endif
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#endif 
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class MPXDebug
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{
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    public:
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        inline static void NullLog( TRefByValue<const TDesC16> /*aFmt*/, ... )
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        {
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        }
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        inline static void NullLog( TRefByValue<const TDesC> /*aFunctionName*/,
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		                            TRefByValue<const TDesC16> /*aFmt*/, ... )
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        {
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        }
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        inline static void FileLog( TRefByValue<const TDesC16> aFmt, ... )
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        {
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            VA_LIST list;
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            VA_START(list,aFmt);
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            RFileLogger::WriteFormat( _L("Fusion"), 
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                                      _L("fusion.log"),
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                                      EFileLoggingModeAppend,
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                                      aFmt,
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                                      list );
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        }
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};
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// MACROS
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#ifdef _DEBUG
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    #define MPX_DEBUG             TFusionLog::FusionLog
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    #define MPX_ENTER_EXIT        TEnterExitLog _s
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#else
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    #define MPX_DEBUG             MPXDebug::NullLog
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    #define MPX_ENTER_EXIT        MPXDebug::NullLog
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#endif
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class TFusionLog : public TDes16Overflow
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{
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    public:
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        inline static void FusionLog( TRefByValue<const TDesC16> aFmt, ... )
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        {
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            TBuf< 512 > buffer;
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            VA_LIST list;
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            VA_START( list, aFmt );
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            buffer.AppendFormatList( aFmt, list );
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            VA_END(list);
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            FU_DEBUG(_L("#Fu# %S"), &buffer );
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        }
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};
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class TEnterExitLog : public TDes16Overflow
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{
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    public:
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        void Overflow(TDes16& /*aDes*/)
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        {
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            FU_DEBUG(_L("%S Logging Overflow"), &iFunctionName);
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        }
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        TEnterExitLog( TRefByValue<const TDesC> aFunctionName,
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                       TRefByValue<const TDesC> aFmt, ... )
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        {
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            iFunctionName = HBufC::New( TDesC(aFunctionName).Length() );
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            if ( iFunctionName )
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            {
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                iFunctionName->Des().Copy(aFunctionName);
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            }
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            TBuf< 512 > buffer;
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            VA_LIST list;
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            VA_START( list, aFmt );
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            buffer.AppendFormatList( aFmt, list, this );
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            VA_END(list);
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            FU_DEBUG(_L("#Fu# --> %S %S"), iFunctionName, &buffer );
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        }
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        TEnterExitLog( TRefByValue<const TDesC> aFunctionName )
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        {
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            iFunctionName = HBufC::New( TDesC(aFunctionName).Length() );
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            if ( iFunctionName )
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            {
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                iFunctionName->Des().Copy(aFunctionName);
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            }
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            FU_DEBUG(_L("#Fu# --> %S"), iFunctionName );
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        }
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        ~TEnterExitLog()
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        {
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            FU_DEBUG(_L("#Fu# <-- %S"), iFunctionName );
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            delete iFunctionName;
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        }
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    private:
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        HBufC*    iFunctionName;
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};
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_LIT(_KMPXErrorInfo, "#Fu# MPXVideo Error : error %d file %s line %d");
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#define MPX_S(a) _S(a)
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#define MPX_ERROR_LOG(aErr) \
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    {\
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        if (aErr) \
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            FU_DEBUG(_KMPXErrorInfo, aErr, MPX_S(__FILE__), __LINE__);\
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    }
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#define MPX_TRAP(_r, _s) TRAP(_r,_s);MPX_ERROR_LOG(_r);
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#define MPX_TRAPD(_r, _s) TRAPD(_r,_s);MPX_ERROR_LOG(_r);
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#endif  // __MPXVIDEO_DEBUG_H__
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// End of File