1 /*

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

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 #ifndef MEMSPYDRIVERSTREAMWRITER_H

    19 #define MEMSPYDRIVERSTREAMWRITER_H

    20 

    21 // System includes

    22 #include <e32cmn.h>

    23 #include <kernel.h>

    24 

    25 // Classes referenced

    26 class DMemSpyDriverXferBuffer;

    27 

    28 

    29 class RMemSpyMemStreamWriter

    30     {

    31 public:

    32     RMemSpyMemStreamWriter();

    33     RMemSpyMemStreamWriter( DMemSpyDriverXferBuffer& aBuffer );

    34 

    35 public: // API - closure

    36     void Close();

    37     TInt WriteAndClose( TDes8* aDestinationPointer );

    38 

    39 public: // API - writing

    40     TInt32* WriteInt32( TInt32 aValue );

    41     TUint32* WriteUint32( TUint32 aValue );

    42 

    43 public: // API - positioning

    44     TUint8* Current() const;

    45     void Seek( TInt aPosition );

    46     TUint32 Remaining() const;

    47 

    48 public: // API - marking

    49     void MarkSet();

    50     void MarkResume();

    51 

    52 public: // API - misc

    53     TBool IsFull() const;

    54     TBool IsOpen() const;

    55 

    56 public: // API - operators

    57     RMemSpyMemStreamWriter& operator=( const RMemSpyMemStreamWriter& aCopy );

    58 

    59 private: // Internal methods

    60     void IncrementPos( TInt aAmount );

    61 

    62 private:

    63     DMemSpyDriverXferBuffer* iBuffer;

    64     TUint8* iCurrent;

    65     TUint8* iMax;

    66     TUint8* iMark;

    67     TInt iCommitted;

    68     };

    69 

    70 

    71 #endif