/*

 * Copyright (c) 2003-2009 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: 

 *

 */

 #include <random.h>

 #include <e32debug.h>

 #include "randomshim.h"

 _LIT(KThreadRandom, "threadrandom.cpp");

 EXPORT_C void SetThreadRandomL(CRandom* aRNG)

 	{

 	User::LeaveIfError(Dll::SetTls(aRNG));	

 	}

 EXPORT_C void SetThreadRandomLC(CRandom* aRNG)

 	{

 	CleanupStack::PushL(aRNG);

 	SetThreadRandomL(aRNG);

 	//This pop before the push isn't a problem as the PushL can't fail. 

 	//We just did a push before this and thus there is enough room on the

 	//cleanupstack such that OOM is not possible.

 	CleanupStack::Pop(aRNG);

 	CleanupStack::PushL(TCleanupItem(&DeleteThreadRandom, Dll::Tls()));

 	}

 void DeleteThreadRandom(TAny* aPtr)

 	{

 	CRandom* random = reinterpret_cast<CRandom*>(aPtr);

 	delete random;

 	TInt result = Dll::SetTls(0);

 	__ASSERT_ALWAYS(result == 0, User::Panic(KThreadRandom, 1));

 	}

 EXPORT_C void DestroyThreadRandom(void)

 	{

 	delete (CRandom*)(Dll::Tls());

 	TInt result = Dll::SetTls(0);

 	__ASSERT_ALWAYS(result == 0, User::Panic(KThreadRandom, 1));

 	}

 EXPORT_C void GenerateRandomBytesL(TDes8& aDest)

 	{

 	TAny* tls = Dll::Tls();

 	if(tls)

 		{

 		((CRandom*)tls)->GenerateBytesL(aDest);

 		}

 	else

 		{

 		TRandomShim::RandomL(aDest);

 		}

 	}