/*

* Copyright (c) 2008-2009 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: 

* Library to add s32strm support for IPC (ie. stream via multiple IPC read/writes instead of

* copying to a buffer and streaming to/from there.

*

*/

/**

 @file

 @internalTechnology

 @prototype

*/

#ifndef IPCSTREAM_INL

#define IPCSTREAM_INL

#include <scs/ipcstream.h>

#include <scs/streamingarray.h>

inline void WriteIntValueL(const RMessage2& aMessage, TInt aParam, TInt aValue)

	{

	TPckg<TInt> valuePak(aValue);

	aMessage.WriteL(aParam, valuePak);

	}

template <class T>

void WriteArraySizeL(const RMessage2& aMessage, TInt aParam, RPointerArray<T>& aArray)

	{

	TInt arraySize(0);

	// If the array is not empty, calculate and return the required buffer size to externalize it. 

	// Otherwise, return zero.

	if(aArray.Count())

		{

		arraySize = ExternalizedBufferSizeL(aArray);

		}

	WriteIntValueL(aMessage, aParam, arraySize);

	}

template <class T>

void WriteArraySizeL(const RMessage2& aMessage, TInt aParam, RArray<T>& aArray)

	{

	TInt arraySize(0); // if the array is empty, then zero length is returned

	if(aArray.Count())

		{ 

		arraySize = ExternalizedBufferSizeL(aArray);

		}

	WriteIntValueL(aMessage, aParam, arraySize);

	}

template <class T>

void WriteObjectSizeL(const RMessage2& aMessage, TInt aParam, const T* aObject)

	{

	// Calculate that how much buffer is needed to externalize the object

	TInt entrySize(0);

	if(aObject)

		{

		entrySize = GetObjectBufferSizeL(*aObject);

		}

	WriteIntValueL(aMessage, aParam, entrySize);

	}

template <class T>

void WriteArrayDataL(const RMessage2& aMessage, TInt aParam, RPointerArray<T>& aArray)

	{

	if(!aArray.Count())

		{

		User::Leave(KErrAbort);

		}

	RIpcWriteStream ipcstream;

	ipcstream.Open(aMessage, aParam);

	CleanupClosePushL(ipcstream);

	ExternalizePointersArrayL(aArray, ipcstream);

	CleanupStack::PopAndDestroy(&ipcstream); // Data is committed in Close method

	aArray.ResetAndDestroy(); // Reset the array to prevent it to be resent mistakenly.

	}

template <class T>

void WriteArrayDataL(const RMessage2& aMessage, TInt aParam, RArray<T>& aArray)

	{

	if(!aArray.Count())

		{

		User::Leave(KErrAbort);

		}

	RIpcWriteStream ipcstream;

	ipcstream.Open(aMessage, aParam);

	CleanupClosePushL(ipcstream);

	ExternalizeFixedLengthArrayL(aArray, ipcstream);

	CleanupStack::PopAndDestroy(&ipcstream); // Data is committed in Close method

	aArray.Reset(); // Reset the array to prevent it to be resent mistakenly.

	}

template <class T>

void WriteObjectDataL(const RMessage2& aMessage, TInt aParam, const T* aObject)

	{

	if(!aObject)

		{

		User::Leave(KErrAbort);

		}

	RIpcWriteStream ipcstream;

	ipcstream.Open(aMessage, aParam);

	CleanupClosePushL(ipcstream);

	ipcstream << *aObject;

	CleanupStack::PopAndDestroy(&ipcstream); // Data is committed in Close method

	}

template <class T>

T* ReadObjectFromMessageLC(const RMessage2& aMessage, TInt aSlot)

	{

	RIpcReadStream stream;

	CleanupClosePushL(stream);

	stream.Open(aMessage, aSlot);

	T *object = T::NewL(stream);

	CleanupStack::PopAndDestroy(&stream);

	CleanupStack::PushL(object);

	return object;

	}

#endif /* IPCSTREAM_INL */