--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/videocollection/tsrc/simplevideoplayback/inc/trace.h	Fri Aug 06 09:43:48 2010 +0300
@@ -0,0 +1,146 @@
+/*
+* 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:  Tracing macros, 2nd generation
+*
+*/
+
+#ifndef TRACE_H
+#define TRACE_H
+
+#include <QDebug>
+
+//-----------------------------------------------------------------------------
+// Trace definitions
+//-----------------------------------------------------------------------------
+//
+
+/**
+* Error trace enabled
+*/
+#ifdef _DEBUG
+    #define ERROR_TRACE
+    #define INFO_TRACE
+    #define TIMESTAMP_TRACE
+    #define FUNC_TRACE
+#else
+    #define ERROR_TRACE
+    #define INFO_TRACE
+    #define TIMESTAMP_TRACE
+    #define FUNC_TRACE
+#endif
+
+//-----------------------------------------------------------------------------
+// Constants
+//-----------------------------------------------------------------------------
+//
+
+/**
+* Trace prefixes for macros with component name.
+*/
+#define _TRACE_PREFIX "[SVPB]:"
+
+/**
+* Prefix error trace
+*/
+#define _ERROR_PREFIX _TRACE_PREFIX " [ERROR]:"
+
+/**
+* Prefix info trace.
+*/
+#define _INFO_PREFIX _TRACE_PREFIX " [INFO]:"
+
+/**
+* Prefix timestamp trace.
+*/
+#define _TIMESTAMP_PREFIX _TRACE_PREFIX " [TIMESTAMP]:"
+
+//-----------------------------------------------------------------------------
+// Error trace macros
+// Usage: wrap traces in ERROR() macro to allow disabling them in release builds.
+// Use normal stream object operations.
+// Examples:
+// ERROR( "xxx failed" );
+// ERROR( "Test trace arg =" << 999 << "arg2 =" << title() );
+//-----------------------------------------------------------------------------
+//
+#ifdef ERROR_TRACE
+    #define ERROR(trace) {qDebug() << _ERROR_PREFIX << trace;}
+    #define ERROR_PARAM(param) param
+    #define HANDLE_ERROR(trace) {ERROR(trace); __BREAKPOINT();}
+    #define HANDLE_ERROR_BOOL(x) {if (!x) {ERROR(#x << "is false"); __BREAKPOINT();}}
+    #define HANDLE_ERROR_NULL(x) {if (!x) {ERROR(#x << "is NULL"); __BREAKPOINT();}}
+    #define HANDLE_ERROR_NEG(x) {if (x < 0) {ERROR(#x << "=" << x << "File:" << __FILE__ << ", line:" << __LINE__); __BREAKPOINT();}}
+    #define CHECK_ERROR(err, trace) {if (err < 0) ERROR(trace << err);}
+#else //ERROR_TRACE not defined
+    #define ERROR(trace)
+    #define ERROR_PARAM(param)
+    #define HANDLE_ERROR(trace)
+    #define HANDLE_ERROR_BOOL(x)
+    #define HANDLE_ERROR_NULL(x)
+    #define HANDLE_ERROR_NEG(x)
+    #define CHECK_ERROR(err,trace)
+#endif //ERROR_TRACE
+
+//-----------------------------------------------------------------------------
+// Info trace macros
+// Usage: wrap traces in INFO() macro to allow disabling them in release builds.
+// Use normal stream object operations.
+// Examples:
+// INFO( "Test trace" );
+// INFO( "Test trace arg =" << 999 << "arg2 =" << title() );
+//-----------------------------------------------------------------------------
+//
+#ifdef INFO_TRACE
+    #define INFO(trace) {qDebug() << _INFO_PREFIX << trace;}
+    #define INFO_PARAM(param) param
+#else //INFO_TRACE not defined
+    #define INFO(trace)
+    #define INFO_PARAM(param)
+#endif //INFO_TRACE
+
+//-----------------------------------------------------------------------------
+// Function trace macros
+//-----------------------------------------------------------------------------
+//
+#ifdef FUNC_TRACE
+
+    class FuncLog
+    {
+    public:
+    inline FuncLog( const char* func ) : m_func( func )
+        { qDebug() << _TRACE_PREFIX << m_func << "-START"; }
+    inline ~FuncLog() { qDebug() << _TRACE_PREFIX << m_func << "-END"; }
+    private: // Data
+        QString m_func;
+    };
+
+    #define FUNC_LOG FuncLog _fl( __PRETTY_FUNCTION__ );
+#else //FUNC_TRACE not defined
+    #define FUNC_LOG
+#endif //FUNC_TRACE
+
+//-----------------------------------------------------------------------------
+// Timestamp trace macros
+//-----------------------------------------------------------------------------
+//
+#ifdef TIMESTAMP_TRACE
+    #include <QTime>
+    #define TIMESTAMP(trace)\
+        {qDebug() << _TIMESTAMP_PREFIX << "(" << \
+            QTime::currentTime().toString("HH:mm:ss:zzz") << ")" << trace;}
+#else //TIMESTAMP_TRACE not defined
+    #define TIMESTAMP(trace)
+#endif //TIMESTAMP_TRACE
+
+#endif // TRACE_H