sl@0: /*
sl@0: * Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: #include <random.h>
sl@0: #include <e32debug.h>
sl@0: #include "randomshim.h"
sl@0: 
sl@0: _LIT(KThreadRandom, "threadrandom.cpp");
sl@0: 
sl@0: EXPORT_C void SetThreadRandomL(CRandom* aRNG)
sl@0: 	{
sl@0: 	User::LeaveIfError(Dll::SetTls(aRNG));	
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void SetThreadRandomLC(CRandom* aRNG)
sl@0: 	{
sl@0: 	CleanupStack::PushL(aRNG);
sl@0: 	SetThreadRandomL(aRNG);
sl@0: 	//This pop before the push isn't a problem as the PushL can't fail. 
sl@0: 	//We just did a push before this and thus there is enough room on the
sl@0: 	//cleanupstack such that OOM is not possible.
sl@0: 	CleanupStack::Pop(aRNG);
sl@0: 	CleanupStack::PushL(TCleanupItem(&DeleteThreadRandom, Dll::Tls()));
sl@0: 	}
sl@0: 
sl@0: void DeleteThreadRandom(TAny* aPtr)
sl@0: 	{
sl@0: 	CRandom* random = reinterpret_cast<CRandom*>(aPtr);
sl@0: 	delete random;
sl@0: 	TInt result = Dll::SetTls(0);
sl@0: 	__ASSERT_ALWAYS(result == 0, User::Panic(KThreadRandom, 1));
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void DestroyThreadRandom(void)
sl@0: 	{
sl@0: 	delete (CRandom*)(Dll::Tls());
sl@0: 	TInt result = Dll::SetTls(0);
sl@0: 	__ASSERT_ALWAYS(result == 0, User::Panic(KThreadRandom, 1));
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void GenerateRandomBytesL(TDes8& aDest)
sl@0: 	{
sl@0: 	TAny* tls = Dll::Tls();
sl@0: 	if(tls)
sl@0: 		{
sl@0: 		((CRandom*)tls)->GenerateBytesL(aDest);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		TRandomShim::RandomL(aDest);
sl@0: 		}
sl@0: 	}