--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/MemoryManager/Inc/MemoryLogger.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,125 @@
+/*
+* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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 _MEMORYLOGGING_H
+#define _MEMORYLOGGING_H
+
+// INCLUDES
+
+#include <e32std.h>
+#include <e32def.h>
+#include <flogger.h>
+#include <f32file.h>
+
+#ifdef OOM_LOGGING
+// CONSTANTS
+
+_LIT( KMEMLogDir,               "WebCore");
+_LIT( KMEMLogFile,              "Memory.log");
+_LIT8( KFuncMemLogBegin, "BEGIN: %S @ %S/%d InSize -> %d" );
+_LIT8( KFuncMemLogEnd, "END: Peek -> %d Diff -> %d Accumulated Peek -> %d" );
+_LIT8( KTab, "\t" );
+
+// MACROS
+
+#define MEM_LOG(a)		{ _LIT8(temp, a); RFileLogger::Write(KMEMLogDir, KMEMLogFile, EFileLoggingModeAppend, temp); }
+#define MEM_LOGF		FPrint
+
+// FUNCTION DECLARATIONS
+
+inline void FPrint(const TRefByValue<const TDesC8> aFmt, ...)
+{
+    VA_LIST list;
+    VA_START(list,aFmt);
+    RFileLogger::WriteFormat(KMEMLogDir, KMEMLogFile, EFileLoggingModeAppend, aFmt, list);
+}
+
+// CLASS DECLARATION
+
+/**
+*  A utility class to record the memory usage inside a function
+*  @lib memman.lib
+*  @since 3.1
+*/
+class FunctionLogger
+	{
+	public:
+		inline FunctionLogger( const TDesC8& func, const TDesC8& file, TInt line, TInt size );
+		inline ~FunctionLogger();
+			
+		TInt _peek;
+		TInt _used;
+		TInt _accum;
+		TInt _inSize;
+		static RPointerArray<FunctionLogger> loggers;
+	};
+
+// MEMBER FUNCTIONS
+
+//-----------------------------------------------------------------------------
+// FunctionLogger::FunctionLogger
+//-----------------------------------------------------------------------------
+inline FunctionLogger::FunctionLogger( const TDesC8& func, const TDesC8& file, TInt line, TInt size ) 
+	: _peek( 0 ), _used( 0 ), _accum( 0 )
+	{
+		TBuf8<512>	buf;
+			
+		// indent
+		for( TInt i=0; i<loggers.Count(); ++i )	buf.Append( KTab );
+		
+		buf.Append( KFuncMemLogBegin );
+		
+		// write the logger info
+		MEM_LOGF( buf, &func, &file, line, size );
+		_inSize = size;
+			
+		// insert this logger to the head of loggers array
+		loggers.Insert( this, 0 );
+	}
+
+//-----------------------------------------------------------------------------
+// FunctionLogger::~FunctionLogger
+//-----------------------------------------------------------------------------
+inline FunctionLogger::~FunctionLogger()
+	{
+		TBuf8<512>	buf;
+			
+		// indent
+		for( TInt i=0; i<loggers.Count()-1; ++i )	buf.Append( KTab );
+		
+		buf.Append( KFuncMemLogEnd );
+		
+		_accum += _peek;
+			
+		MEM_LOGF( buf, _peek, _used, _accum );
+		
+		
+		// remove the logger
+		loggers.Remove( 0 );
+		
+		// update its parents' _accum
+		if( loggers.Count() > 0 )
+			for( TInt i=0; i<loggers.Count(); ++i )
+				loggers[ i ]->_accum += _peek;
+	}
+#else // OOM_LOGGING
+#define MEM_LOG	{}
+#define MEM_LOGF	{}
+#endif
+
+#endif
+// END OF FILE
\ No newline at end of file