sl@0: /*
sl@0: * Copyright (c) 2008-2009 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: * Library to add s32strm support for IPC (ie. stream via multiple IPC read/writes instead of
sl@0: * copying to a buffer and streaming to/from there.
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @internalTechnology
sl@0:  @released
sl@0: */
sl@0: 
sl@0: #ifndef IPCSTREAM_INL
sl@0: #define IPCSTREAM_INL
sl@0: 
sl@0: #include <scs/ipcstream.h>
sl@0: #include <scs/streamingarray.h>
sl@0: 
sl@0: 
sl@0: inline void WriteIntValueL(const RMessage2& aMessage, TInt aParam, TInt aValue)
sl@0: 	{
sl@0: 	TPckg<TInt> valuePak(aValue);
sl@0: 	aMessage.WriteL(aParam, valuePak);
sl@0: 	}
sl@0: 
sl@0: template <class T>
sl@0: void WriteArraySizeL(const RMessage2& aMessage, TInt aParam, RPointerArray<T>& aArray)
sl@0: 	{
sl@0: 	TInt arraySize(0);
sl@0: 	// If the array is not empty, calculate and return the required buffer size to externalize it. 
sl@0: 	// Otherwise, return zero.
sl@0: 	if(aArray.Count())
sl@0: 		{
sl@0: 		arraySize = ExternalizedBufferSizeL(aArray);
sl@0: 		}
sl@0: 	WriteIntValueL(aMessage, aParam, arraySize);
sl@0: 	}
sl@0: 
sl@0: template <class T>
sl@0: void WriteArraySizeL(const RMessage2& aMessage, TInt aParam, RArray<T>& aArray)
sl@0: 	{
sl@0: 	TInt arraySize(0); // if the array is empty, then zero length is returned
sl@0: 	if(aArray.Count())
sl@0: 		{ 
sl@0: 		arraySize = ExternalizedBufferSizeL(aArray);
sl@0: 		}
sl@0: 	WriteIntValueL(aMessage, aParam, arraySize);
sl@0: 	}
sl@0: 
sl@0: template <class T>
sl@0: void WriteObjectSizeL(const RMessage2& aMessage, TInt aParam, const T* aObject)
sl@0: 	{
sl@0: 	// Calculate that how much buffer is needed to externalize the object
sl@0: 	TInt entrySize(0);
sl@0: 	if(aObject)
sl@0: 		{
sl@0: 		entrySize = GetObjectBufferSizeL(*aObject);
sl@0: 		}
sl@0: 	WriteIntValueL(aMessage, aParam, entrySize);
sl@0: 	}
sl@0: 
sl@0: template <class T>
sl@0: void WriteArrayDataL(const RMessage2& aMessage, TInt aParam, RPointerArray<T>& aArray)
sl@0: 	{
sl@0: 	if(!aArray.Count())
sl@0: 		{
sl@0: 		User::Leave(KErrAbort);
sl@0: 		}
sl@0: 	RIpcWriteStream ipcstream;
sl@0: 	ipcstream.Open(aMessage, aParam);
sl@0: 	CleanupClosePushL(ipcstream);
sl@0: 	ExternalizePointersArrayL(aArray, ipcstream);
sl@0: 	CleanupStack::PopAndDestroy(&ipcstream); // Data is committed in Close method
sl@0: 	aArray.ResetAndDestroy(); // Reset the array to prevent it to be resent mistakenly.
sl@0: 	}
sl@0: 
sl@0: template <class T>
sl@0: void WriteArrayDataL(const RMessage2& aMessage, TInt aParam, RArray<T>& aArray)
sl@0: 	{
sl@0: 	if(!aArray.Count())
sl@0: 		{
sl@0: 		User::Leave(KErrAbort);
sl@0: 		}
sl@0: 	RIpcWriteStream ipcstream;
sl@0: 	ipcstream.Open(aMessage, aParam);
sl@0: 	CleanupClosePushL(ipcstream);
sl@0: 	ExternalizeFixedLengthArrayL(aArray, ipcstream);
sl@0: 	CleanupStack::PopAndDestroy(&ipcstream); // Data is committed in Close method
sl@0: 	aArray.Reset(); // Reset the array to prevent it to be resent mistakenly.
sl@0: 	}
sl@0: 
sl@0: template <class T>
sl@0: void WriteObjectDataL(const RMessage2& aMessage, TInt aParam, const T* aObject)
sl@0: 	{
sl@0: 	if(!aObject)
sl@0: 		{
sl@0: 		User::Leave(KErrAbort);
sl@0: 		}
sl@0: 	RIpcWriteStream ipcstream;
sl@0: 	ipcstream.Open(aMessage, aParam);
sl@0: 	CleanupClosePushL(ipcstream);
sl@0: 	ipcstream << *aObject;
sl@0: 	CleanupStack::PopAndDestroy(&ipcstream); // Data is committed in Close method
sl@0: 	}
sl@0: 
sl@0: template <class T>
sl@0: T* ReadObjectFromMessageLC(const RMessage2& aMessage, TInt aSlot)
sl@0: 	{
sl@0: 	RIpcReadStream stream;
sl@0: 	CleanupClosePushL(stream);
sl@0: 	stream.Open(aMessage, aSlot);
sl@0: 	T *object = T::NewL(stream);
sl@0: 	CleanupStack::PopAndDestroy(&stream);
sl@0: 	CleanupStack::PushL(object);
sl@0: 	return object;
sl@0: 	}
sl@0: 
sl@0: #endif /* IPCSTREAM_INL */