/*

* 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 "threadedlogger.h"

CThreadedLogger* CThreadedLogger::NewLC(MOmxScriptTestLogger& aRealLogger)

	{

	CThreadedLogger* self = new(ELeave) CThreadedLogger(aRealLogger);

	CleanupStack::PushL(self);

	self->ConstructL();

	return self;

	}

CThreadedLogger::CThreadedLogger(MOmxScriptTestLogger& aRealLogger):

CActive(EPriorityHigh),

iRealLogger(aRealLogger)

	{

	iCreatorThreadId = iCreatorThread.Id();

	}

void CThreadedLogger::ConstructL()

	{

	User::LeaveIfError(iCreatorThread.Open(iCreatorThreadId));

	User::LeaveIfError(iMutex.CreateLocal());

	User::LeaveIfError(iSemaphore.CreateLocal(0));

	CActiveScheduler::Add(this);

	iStatus = KRequestPending;

	SetActive();

	}

CThreadedLogger::~CThreadedLogger()

	{

	Cancel();

	iSemaphore.Close();

	iMutex.Close();

	iCreatorThread.Close();

	}

void CThreadedLogger::Log(const TText8* aFile, TInt aLine, TOmxScriptSeverity aSeverity, const TDes& aMessage)

	{

	if(RThread().Id() == iCreatorThreadId)

		{

		iRealLogger.Log(aFile, aLine, aSeverity, aMessage);

		}

	else

		{

		// proxy the log to creator thread

		// mutex prevents multiple threads to proxy at the same time

		iMutex.Wait();

		// const_cast is regrettable but all we do is pass the params onto a another MOmxScriptTestLogger which will

		// also treat the args as const

		iFile = const_cast<TText8*>(aFile);

		iLine = aLine;

		iSeverity = aSeverity;

		iMessage = &const_cast<TDes&>(aMessage);

		// signal the creator thread (waking the Active Object)

		TRequestStatus* statusPtr = &iStatus;

		iCreatorThread.RequestComplete(statusPtr, KErrNone);

		// wait for creator thread to signal back

		iSemaphore.Wait();

		iMutex.Signal();

		}

	}

void CThreadedLogger::RunL()

	{

	if(iStatus.Int() == KErrCancel)

		{

		return;

		}

	iRealLogger.Log(iFile, iLine, iSeverity, *iMessage);

	iFile = NULL;

	iLine = 0;

	iSeverity = (TOmxScriptSeverity) 0;

	iMessage = NULL;

	iStatus = KRequestPending;

	SetActive();

	iSemaphore.Signal();	// signal the requestor thread

	}

void CThreadedLogger::DoCancel()

	{

	TRequestStatus* statusPtr = &iStatus;

	User::RequestComplete(statusPtr, KErrCancel);

	}