hwrmhaptics/inc/hwrmhapticstrace.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 00:53:00 +0200
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permissions -rw-r--r--
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/*
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* Copyright (c) 2007 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 "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:  Haptics debug trace macro definition header file
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*
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*/
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#ifndef HWRMHAPTICSTRACE_H
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#define HWRMHAPTICSTRACE_H
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#include <bldvariant.hrh>
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#include <e32svr.h>
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#include <e32std.h>
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#include <e32svr.h>
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#include <flogger.h>
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/**
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 * Writes formatted string data to a file using RFileLogger.
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 *
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 * @param aFmt Value-referenced descriptor containing the formatted string. 
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 */
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inline void HwrmWriteFormat( TRefByValue<const TDesC> aFmt, ... )
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    {
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    _LIT( KDir, "haptics" );
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    _LIT( KName, "haptics.log" );
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    // take the ellipsis parameters
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    VA_LIST args;
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    VA_START( args, aFmt );
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    RFileLogger::WriteFormat( KDir, KName, EFileLoggingModeAppend, aFmt, args );
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    VA_END( args );
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    }
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/**
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 * Writes data dump in hex format in "[ 00 01 FF ]" style.
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 * 
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 * @param aPrefix Descriptor containing the string to be appended in 
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 *                front of the actual data dump.
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 * @param aData   An 8-bit descriptor containing the data buffer for which 
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 *                the data dump is written.
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 */
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inline void DataDumpTrace( const TDesC& aPrefix, const TDesC8& aData )
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    {
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    _LIT( KSATraceDataDumpStart, " [ " );
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    _LIT( KSATraceDataDumpLineAlign, "   " );
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    _LIT( KSATraceDataDumpStop, " ] " );
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    _LIT( KSATraceDataDumpValue, "%02x " );
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    const TInt KSASDataDumpTraceBytesPerLine = 10;
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    HBufC* buffer = HBufC::New( 255 );
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    if ( buffer != NULL )
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        {
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        buffer->Des().Copy( aPrefix );
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        buffer->Des().Append( KSATraceDataDumpStart );
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        for ( TInt i = 0; i < aData.Length(); i++)
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            {
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            buffer->Des().AppendFormat( KSATraceDataDumpValue,  aData[i] );
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            if( ( i % KSASDataDumpTraceBytesPerLine == ( KSASDataDumpTraceBytesPerLine - 1 ) ) && 
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                ( i + 1 < aData.Length() ) )
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                {
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                RDebug::Print( buffer->Des() );
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                buffer->Des().Copy( aPrefix);
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                buffer->Des().Append( KSATraceDataDumpLineAlign );
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                }
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            }
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        buffer->Des().Append( KSATraceDataDumpStop );
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        RDebug::Print( buffer->Des() );
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        }
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    delete buffer;
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    }
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#ifdef _DEBUG
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    #ifdef USE_FILE_LOGGING
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        #define COMPONENT_TRACE( a ) HwrmWriteFormat a 
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        #define DATADUMP_TRACE( a, b ) 
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        #define API_TRACE( a ) HwrmWriteFormat a 
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    #else
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        #define COMPONENT_TRACE( a ) RDebug::Print a 
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        #define DATADUMP_TRACE( a, b ) DataDumpTrace( a, b ) 
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        #define API_TRACE( a ) RDebug::Print a
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    #endif // #ifdef USE_FILE_LOGGING
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#else // #ifdef _DEBUG
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    #define COMPONENT_TRACE( a )
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    #define API_TRACE( a )
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    #define DATADUMP_TRACE( a, b ) 
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#endif //#ifdef _DEBUG
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#endif //#ifndef HWRMHAPTICSTRACE_H
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//  End of File