--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/persistentstorage/store/UMEM/UM_STRM.CPP	Fri Jan 22 11:06:30 2010 +0200
@@ -0,0 +1,266 @@
+// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "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 "UM_STD.H"
+
+/**
+Constructs the RMemReadStream object and prepares the stream hosted
+in the specified plain memory location for reading.
+
+@param aPtr The start address for the area of memory that will be
+the source of this stream.
+@param aLength The length of the area of memory.
+
+@see RMemReadStream::Open
+*/
+EXPORT_C RMemReadStream::RMemReadStream(const TAny* aPtr,TInt aLength)
+	{
+	Open(aPtr,aLength);
+	}
+
+/**
+Open a stream that reads from a pointer of any type.
+
+To close the stream and free its resources call Close()
+
+@param aPtr The start address for the area of memory that will be
+the source of this stream.
+@param aLength The length of the area of memory.
+
+@see TMemBuf::Set
+@see RReadStream::Attach
+*/
+EXPORT_C void RMemReadStream::Open(const TAny* aPtr,TInt aLength)
+	{
+	iSource.Set((TUint8*)aPtr,(TUint8*)aPtr+aLength,iSource.ERead);
+	RReadStream::Attach(&iSource);
+	}
+
+/**
+Constructs the RMemWriteStream object and prepares a stream to be hosted
+in the specified memory location (described by the TAny aPtr argument)
+for writing using the Open() function.
+
+@param aPtr The start address for the area of memory that is the sink of
+this stream.
+@param aMaxLength The maximum length of the area of memory.
+
+@see RMemWriteStream::Open
+*/
+EXPORT_C RMemWriteStream::RMemWriteStream(TAny* aPtr,TInt aMaxLength)
+	{
+	Open(aPtr,aMaxLength);
+	}
+
+/**
+Prepares a stream for writing.
+
+When streaming takes place any existing data in the memory location will
+be replaced. Note that the length of memory must be big enough to accommodate
+the expected streamed data otherwise the subsequent streaming operation will
+leave with KErrOverFlow.
+
+To close the stream and free its resources call Close()
+
+@param aPtr The start address for the area of memory that is the sink of
+this stream.
+@param aMaxLength The maximum length of the area of memory.
+
+@see TMemBuf::Set
+@see RWriteStream::Attach
+*/
+EXPORT_C void RMemWriteStream::Open(TAny* aPtr,TInt aMaxLength)
+	{
+	iSink.Set((TUint8*)aPtr,(TUint8*)aPtr+aMaxLength,iSink.EWrite);
+	RWriteStream::Attach(&iSink);
+	}
+
+/**
+Constructs the RDesReadStream object and prepares the stream hosted
+by the specified descriptor for reading.
+
+@param aDes The descriptor that will be the source of this stream.
+
+@see RDesReadStream::Open
+*/
+EXPORT_C RDesReadStream::RDesReadStream(const TDesC8& aDes)
+	{
+	Open(aDes);
+	}
+
+/**
+Open a stream that reads from a descriptor.
+
+To close the stream and free its resources call Close()
+
+@param aDes The descriptor that will be the source of this stream.
+
+@see TDesBuf::Set
+@see RReadStream::Attach
+*/
+EXPORT_C void RDesReadStream::Open(const TDesC8& aDes)
+	{
+	TUint8* ptr=(TUint8*)aDes.Ptr();
+	iSource.Set(ptr,ptr+aDes.Length(),iSource.ERead);
+	RReadStream::Attach(&iSource);
+	}
+
+/**
+Constructs the RDesWriteStream object and prepares a stream to be
+hosted by the specified 8-bit descriptor for writing using the Open()
+function.
+
+
+@param aDes The descriptor hosting the stream.
+
+@see RDesWriteStream::Open
+*/
+EXPORT_C RDesWriteStream::RDesWriteStream(TDes8& aDes)
+	{
+	Open(aDes);
+	}
+
+/**
+Prepares a stream for writing.
+
+When streaming takes place, any existing data in the descriptor will
+be replaced. Note that the maximum length of the descriptor must be
+big enough to accommodate the expected streamed data, otherwise the
+subsequent streaming operation will leave with KErrOverFlow.
+
+A subsequent call to CommitL() sets the length of the descriptor.
+
+To close the stream and free its resources call Close()
+
+@param aDes The descriptor that will be the sink of this stream.
+
+@see TDesBuf::Set
+@see RWriteStream::Attach
+*/
+EXPORT_C void RDesWriteStream::Open(TDes8& aDes)
+	{
+	aDes.SetLength(0);
+	iSink.Set(aDes,iSink.EWrite);
+	RWriteStream::Attach(&iSink);
+	}
+
+/**
+Constructs the RBufReadStream object and opens the stream hosted by the
+specified dynamic buffer for reading using the Open() method.
+
+@param aBuf The dynamic buffer that will be the source of this stream.
+@param aPos The offset within the dynamic buffer where the stream starts.
+
+@see RBufReadStream::Open
+*/
+EXPORT_C RBufReadStream::RBufReadStream(const CBufBase& aBuf,TInt aPos)
+	{
+	Open(aBuf,aPos);
+	}
+
+/**
+Prepares the stream hosted by the specified dynamic buffer for reading.
+
+To close the stream and free its resources call Close()
+
+@param aBuf The dynamic buffer that will be the source of this stream.
+@param aPos The offset within the dynamic buffer where the stream starts.
+
+@see TBufBuf::Set
+@see RReadStream::Attach
+*/
+EXPORT_C void RBufReadStream::Open(const CBufBase& aBuf,TInt aPos)
+	{
+	iSource.Set((CBufBase&)aBuf,aPos,iSource.ERead);
+	RReadStream::Attach(&iSource);
+	}
+
+/**
+Constructs the RBufWriteStream object and opens a stream that writes to
+the specified dynamic buffer using the Open() function.
+
+@param aBuf The dynamic buffer hosting the stream.
+@param aPos The offset within the dynamic buffer where the stream is to
+start. Defaults to zero, if not explicitly specified. The value cannot
+be greater than the current size of the buffer, otherwise a E32USER-CBase 5
+panic will be raised when streaming starts.
+
+@see RBufWriteStream::Open
+*/
+EXPORT_C RBufWriteStream::RBufWriteStream(CBufBase& aBuf,TInt aPos)
+	{
+	Open(aBuf,aPos);
+	}
+
+/**
+Open a stream that writes to the dynamic buffer specified in the aBuf argument.
+
+To close the stream and free its resources call Close()
+
+@param aBuf The dynamic buffer hosting the stream.
+@param aPos The offset within the dynamic buffer where the stream is to
+start. Defaults to zero, if not explicitly specified. The value cannot
+be greater than the current size of the buffer, otherwise a E32USER-CBase 5
+panic will be raised when streaming starts.
+
+@see TBufBuf::Set
+@see RWriteStream::Attach
+*/
+EXPORT_C void RBufWriteStream::Open(CBufBase& aBuf,TInt aPos)
+	{
+	iSink.Set(aBuf,aPos,iSink.EWrite);
+	RWriteStream::Attach(&iSink);
+	}
+
+/**
+Open a stream that writes into the dynamic buffer specified in the aBuf argument
+using truncate mode.
+
+@param aBuf The dynamic buffer hosting the stream.
+@param aPos The offset within the dynamic buffer where the stream is to
+start. Defaults to zero, if not explicitly specified. The value cannot
+be greater than the current size of the buffer, otherwise a E32USER-CBase 5
+panic will be raised when streaming starts.
+
+@see TBufBuf::Set
+@see TBufBuf::ETruncate
+@see RWriteStream::Attach
+*/
+EXPORT_C void RBufWriteStream::Truncate(CBufBase& aBuf,TInt aPos)
+	{
+	iSink.Set(aBuf,aPos,iSink.ETruncate);
+	RWriteStream::Attach(&iSink);
+	}
+
+/**
+Open a stream that writes into the dynamic buffer specified in the aBuf argument
+using insert mode.
+
+@param aBuf The dynamic buffer hosting the stream.
+@param aPos The offset within the dynamic buffer where the stream is to
+start. Defaults to zero, if not explicitly specified. The value cannot
+be greater than the current size of the buffer, otherwise a E32USER-CBase 5
+panic will be raised when streaming starts.
+
+@see TBufBuf::Set
+@see TBufBuf::EInsert
+@see RWriteStream::Attach
+*/
+EXPORT_C void RBufWriteStream::Insert(CBufBase& aBuf,TInt aPos)
+	{
+	iSink.Set(aBuf,aPos,iSink.EInsert);
+	RWriteStream::Attach(&iSink);
+	}
+