diff -r 000000000000 -r 09774dfdd46b qtinternetradio/irqlogger/src/irqlogger.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtinternetradio/irqlogger/src/irqlogger.cpp	Mon Apr 19 14:01:53 2010 +0300
@@ -0,0 +1,186 @@
+/*
+* 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:
+*
+*/
+
+#include <QFile>
+#include <QTextStream>
+#include <QDateTime>
+#include "irqlogger.h"
+
+// ============================================================================
+// SymbianLogger Defenition
+// ============================================================================
+#if defined LOGGING_ENABLED && defined COMBINE_WITH_ENGINE_LOGGER
+
+#include "irdebug.h"
+
+void SymbianLogger::writeLog( const QString& aMsg )
+{
+    TPtrC tmpDesc(reinterpret_cast<const TUint16*>(aMsg.utf16()), aMsg.length());
+    IRLOG_DEBUG_DESC( tmpDesc );
+}
+
+#else // LOGGING_ENABLED && COMBINE_WITH_ENGINE_LOGGER
+
+void SymbianLogger::writeLog( const QString& aMsg )
+{
+    Q_UNUSED(aMsg);
+}
+
+#endif // LOGGING_ENABLED && COMBINE_WITH_ENGINE_LOGGER
+
+// ============================================================================
+// MethodLogger Defenition
+// ============================================================================
+#ifdef LOGGING_ENABLED
+
+const char* KLogEnter = "--> %s";
+const char* KLogExit = "<-- %s";
+const char* KLogExitRet = "<-- %s, Returning %s";
+const char* KLogExitException = "<-- %s, Exception raised";
+
+MethodLogger::MethodLogger( const char* aFunction ) :
+    iFunction( aFunction )
+{
+    QString msg;
+    msg.sprintf( KLogEnter, iFunction );
+    WRITELOG( msg );
+}
+
+MethodLogger::~MethodLogger()
+{
+    QString msg;
+    if ( std::uncaught_exception() )
+    {
+        msg.sprintf( KLogExitException, iFunction );
+        WRITELOG( msg );
+    }
+    else
+    {
+        msg.sprintf( KLogExit, iFunction );
+        WRITELOG( msg );
+    }
+}
+
+#else // LOGGING_ENABLED
+
+MethodLogger::MethodLogger( const char* aFunction ) :
+    iFunction( aFunction )
+{
+}
+
+MethodLogger::~MethodLogger()
+{
+}
+
+#endif // LOGGING_ENABLED
+
+
+// ============================================================================
+// FileLogger Defenition
+// ============================================================================
+QFile gDebugFile;
+bool  gFilterByLogMarker = false;
+
+#if defined LOGGING_ENABLED && defined TRACE_TO_FILE && !defined COMBINE_WITH_ENGINE_LOGGER
+
+FileLogger::FileLogger(const QString& aFileName, bool aFilterByMarker)
+{
+    installMessageHandler( aFileName, aFilterByMarker );
+}
+
+FileLogger::~FileLogger()
+{
+    uninstallMessageHandler();
+}
+
+#else // LOGGING_ENABLED && TRACE_TO_FILE && !COMBINE_WITH_ENGINE_LOGGER
+
+FileLogger::FileLogger(const QString& aFileName, bool aFilterByMarker)
+{
+    Q_UNUSED(aFileName);
+    Q_UNUSED(aFilterByMarker);
+}
+
+FileLogger::~FileLogger()
+{
+}
+
+#endif // LOGGING_ENABLED && TRACE_TO_FILE && !COMBINE_WITH_ENGINE_LOGGER
+
+void FileLogger::installMessageHandler( const QString& aFileName, bool aFilterByMarker )
+{
+    gDebugFile.setFileName( aFileName );
+    gFilterByLogMarker = aFilterByMarker;
+    
+    gDebugFile.open( QIODevice::Text | QIODevice::WriteOnly );
+
+    if ( gDebugFile.isOpen() )
+    {
+        qInstallMsgHandler( FileLogger::handleMessage );
+    }
+}
+
+void FileLogger::uninstallMessageHandler()
+{
+    if ( gDebugFile.isOpen() )
+    {
+        qInstallMsgHandler( 0 );
+        gDebugFile.close();
+    }
+}
+
+void FileLogger::handleMessage( QtMsgType aType, const char* aMsg )
+{
+    if ( aType == QtDebugMsg )
+    {
+        QString message( aMsg );
+        if ( gFilterByLogMarker && message.contains( QString( KLogMarker ) ) )
+        {
+            QTextStream debugStream( &gDebugFile );
+            QDateTime dateTime( QDateTime::currentDateTime() );            
+            debugStream<<dateTime.toString("yyyy-MM-dd hh:mm:ss.zzz")<<" : "<<message<<endl;
+        }
+    }
+}
+// ============================================================================
+// SIGNAL/SLOT CONNECTION CHECKER
+// ============================================================================
+bool connectAndTest( const QObject* aSender, const char* aSignal,
+                            const QObject* aReceiver, const char* aMember,
+                            Qt::ConnectionType aType )
+{
+    bool connected = QObject::connect( aSender, aSignal, aReceiver, aMember, aType );
+    if ( !connected )
+    {
+        LOG( "Failed to make a signal-slot connection!" );
+        LOG_FORMAT( "sender: %s", aSender->metaObject()->className() );
+        LOG_FORMAT( "signal: %s", aSignal );
+        LOG_FORMAT( "receiver: %s", aReceiver->metaObject()->className() );
+        LOG_FORMAT( "slot: %s", aMember );
+    }
+    return connected;
+}
+
+bool connectAndAssert( const QObject* aSender, const char* aSignal,
+                            const QObject* aReceiver, const char* aMember,
+                            Qt::ConnectionType aType )
+{
+    bool connected = connectAndTest( aSender, aSignal, aReceiver, aMember, aType );
+    Q_ASSERT( connected );
+    return connected;
+}
+