1 // Copyright (c) 2004-2009 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 #ifndef L2CAPSDU_H_

    17 #define L2CAPSDU_H_

    18 

    19 #include <e32def.h>

    20 #include <e32base.h>

    21 #include <es_mbuf.h>

    22 

    23 #include "L2CapPDU.h"

    24 

    25 class CL2CapSDU;

    26 class ML2CapSDUHandler

    27 	{

    28 public:

    29 	virtual void ProcessFlushTimerExpiry(CL2CapSDU& aL2CapSDU) = 0;

    30 	};

    31 

    32 

    33 

    34 NONSHARABLE_CLASS(CL2CapSDU) : public CBase

    35 	{

    36 public:		

    37 	// MBuf based descriptor creation.

    38 	static CL2CapSDU* NewLC(RMBufChain& aSDUData,

    39                             ML2CapSDUHandler& aParent,

    40 			                TUint16 aPDUSize,

    41                             TBool aIsBasicDataVersion = ETrue,

    42 			                TUint16 aTimerDuration = KInfiniteFlush);

    43 	static CL2CapSDU* NewL(RMBufChain& aSDUData,

    44 		                   ML2CapSDUHandler& aParent,

    45 			               TUint16 aPDUSize,

    46 		                   TBool aIsBasicDataVersion = ETrue,

    47 			               TUint16 aTimerDuration = KInfiniteFlush);

    48 

    49 	static TInt FlushTimerExpired(TAny* aL2CapSDU);

    50 	

    51 	

    52 	virtual ~CL2CapSDU();

    53 

    54 	static TInt GetSDUOverhead(TBool aBasicMode);

    55 

    56 	TBool GetPDU(HL2CapPDU*& aReturnedPDU);

    57 	

    58 	TBool IsSDUEmpty() const;

    59 	TBool CurrentPDUIsFirstPDU();

    60 

    61 	void StartFlushTimer(TUint16 aTimerDuration);

    62 	

    63 	TInt ChangeSDUSegmentation(TBool aIsBasicDataVersion, TUint16 aPDUSize);

    64 #ifdef _DEBUG

    65 	TInt DebugManualFlush();

    66 #endif

    67 

    68 		

    69 private:

    70 	CL2CapSDU(ML2CapSDUHandler& aParent, RMBufChain& aDataFrame, TUint16 aReassembledSDULength);

    71 	CL2CapSDU(ML2CapSDUHandler& aParent);

    72 

    73 	void ConstructL(RMBufChain& aSDUData, TBool aIsBasicDataVersion, TUint16 aTimerDuration, TUint16 aPDUSize); 

    74 	TInt SegmentSDUIntoPDUs(RMBufChain& aSDUData, TBool aIsBasicDataVersion, TUint16 aPDUSize);

    75 	void HandleFlushTimerExpired();

    76 

    77 public:

    78 	TDblQueLink iLink;

    79 	

    80 private:

    81 	ML2CapSDUHandler& iParent;

    82 

    83 	TDblQue<HL2CapPDU> iPDUs;

    84 	TDblQueIter<HL2CapPDU> iCurrentPDU;

    85 

    86 	TDeltaTimerEntry iFlushTimerEntry;

    87 	TBool iFlushTimerRunning;

    88 	

    89 	RMBufChain iIncomingSDU;

    90 	};

    91 

    92 

    93 #endif