sl@0: // Copyright (c) 2005-2009 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 "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: // Sets the read position.
sl@0: // 
sl@0: //
sl@0: 
sl@0: inline void HIpcBuf::SetPos(TRead, TInt aPos)
sl@0: 	{
sl@0: 	iRPos = aPos;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Sets the write position.
sl@0: */
sl@0: inline void HIpcBuf::SetPos(TWrite, TInt aPos)
sl@0: 	{
sl@0: 	iWPos = aPos;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @return Read position
sl@0: */
sl@0: inline TInt HIpcBuf::Pos(TRead) const
sl@0: 	{
sl@0: 	return iRPos;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @return Write position
sl@0: */
sl@0: inline TInt HIpcBuf::Pos(TWrite) const
sl@0: 	{
sl@0: 	return iWPos;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Moves the read position.
sl@0: */
sl@0: inline TInt HIpcBuf::MovePos(TRead, TInt aOffset)
sl@0: 	{
sl@0: 	return iRPos += aOffset;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @return The difference between read and write positions.
sl@0: */
sl@0: inline TInt HIpcBuf::Lag(TRead) const
sl@0: 	{
sl@0: 	return Ptr(ERead) - End(ERead);
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @return The difference between the write position and the beginning of the buffer.
sl@0: */
sl@0: inline TInt HIpcBuf::Lag(TWrite) const
sl@0: 	{
sl@0: 	return Ptr(EWrite) - iBuf.iData;
sl@0: 	}
sl@0: 
sl@0: inline TInt HIpcBuf::Mark(TRead) const
sl@0: 	{
sl@0: 	return Pos(ERead) + Lag(ERead);
sl@0: 	}
sl@0: 
sl@0: inline TInt HIpcBuf::Mark(TWrite) const
sl@0: 	{
sl@0: 	return Pos(EWrite) + Lag(EWrite);
sl@0: 	}