1 // Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 

    17 inline RCommsBufChain::RCommsBufChain()

    18 : iNext(NULL)

    19 	{

    20 	}

    21 	

    22 inline RCommsBufChain::RCommsBufChain(RCommsBuf* aHeadBuf)

    23 : iNext(aHeadBuf)

    24 	{

    25 	}

    26 

    27 inline TBool RCommsBufChain::IsEmpty() const

    28 /**

    29 Check if the chain is empty. If empty returns ETrue otherwise EFalse

    30 */

    31 	{

    32 	return (iNext == NULL);

    33 	}

    34 

    35 inline RCommsBuf* RCommsBufChain::First()

    36 /**

    37 Returns the first RCommsBuf in the chain.

    38 */

    39 	{

    40 	return iNext;	

    41 	}

    42 

    43 inline RCommsBuf* RCommsBufChain::Goto(TInt aDataOffset, TInt& aBufDataOffset, TInt& aBufDataLen) const

    44  /**

    45 Goto specified byte offset into a CommsBuf chain. Used as part of copyin/out, split etc to position

    46 RCommsBuf pointer and offset from start of iBuffer.

    47 

    48 @param anOffset The offset

    49 @param resBuf result buffer

    50 @param resOffset result offset

    51 @param resLength result length

    52 @param resPrevBuf result previous RCommsBuf in the chain

    53 @return ETrue if successful

    54 */

    55 	{

    56 	RCommsBuf* buf;

    57 	return Goto(aDataOffset, aBufDataOffset, aBufDataLen, buf);

    58 	}

    59