/*

* Copyright (c) 2004-2009 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: 

* tokenserverdebug.h

*

*/

#ifdef _DEBUG

#include "tokenserverdebug.h"

#include <f32file.h>

TInt TokenServerDebug::iCounter = 0;

TInt TokenServerDebug::iStartCount = 0;

TInt TokenServerDebug::iPauseCount = 0;

TInt TokenServerDebug::iInitialAllocCount = 0;

_LIT(KHeapErrorFile, "\\fsserver_heap_error");

void TokenServerDebug::StartOOMTest()

	{

	iStartCount = User::CountAllocCells();

	iCounter = 0;

	}

void TokenServerDebug::IncHeapFailPoint()

	{

	__UHEAP_FAILNEXT(iCounter);	

	++iCounter;

	}

void TokenServerDebug::ResetHeapFail()

	{

	__UHEAP_RESET;

	}

void TokenServerDebug::PauseOOMTest()

	{

	ASSERT(iPauseCount == 0); // Don't nest

	if (iCounter)

		{

		__UHEAP_RESET;

		iPauseCount = User::CountAllocCells();

		}

	}

void TokenServerDebug::ResumeOOMTest()

	{

	if (iCounter)

		{

		ASSERT(iPauseCount > 0);

		__UHEAP_FAILNEXT(iCounter - (iPauseCount - iStartCount));

		iPauseCount = 0;

		}

	}

void TokenServerDebug::HeapCheckStart()

	{

	iInitialAllocCount = User::CountAllocCells();

	}

void TokenServerDebug::HeapCheckEnd()

	{

	TInt finalAllocCount = User::CountAllocCells();

	TRAP_IGNORE(HeapErrorL(finalAllocCount != iInitialAllocCount));

	// ignore errors

	}

/**

 * Write or delete a file to signify to the test code that there's a memory leak

 * in the server.  This is unfortunately the best way of doing it since we can't

 * trap a panic when the server's shutting down.

 */

void TokenServerDebug::HeapErrorL(TBool aError)

	{

	RFs fs;

	User::LeaveIfError(fs.Connect());

	TDriveUnit sysDrive (fs.GetSystemDrive());

	TDriveName driveName(sysDrive.Name());

	TFileName heapErrFile (driveName);

	heapErrFile.Append(KHeapErrorFile);

	if (aError)

		{

		RFile file;

		TInt err = file.Create(fs, heapErrFile, EFileWrite | EFileShareExclusive);

		if (err != KErrNone || err != KErrAlreadyExists)

			{

			User::Leave(err);

			}

		file.Close();

		}

	else

		{

		TInt err = fs.Delete(heapErrFile);

		if (err != KErrNone && err != KErrNotFound)

			{

			User::Leave(err);

			}

		}

	}

#endif