memspy/Driver/Kernel/Include/MemSpyDriverXferBuffer.h
changeset 0 a03f92240627
equal deleted inserted replaced
-1:000000000000 0:a03f92240627
       
     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 MEMSPYDRIVERXFERBUFFER_H
       
    19 #define MEMSPYDRIVERXFERBUFFER_H
       
    20 
       
    21 // System includes
       
    22 #include <e32cmn.h>
       
    23 #include <kernel.h>
       
    24 
       
    25 // Classes referenced
       
    26 class DMemSpyDriverDevice;
       
    27 
       
    28 
       
    29 class DMemSpyDriverXferBuffer : public DBase
       
    30 	{
       
    31     friend class RMemSpyMemStreamWriter;
       
    32 
       
    33 public:
       
    34 	DMemSpyDriverXferBuffer( DMemSpyDriverDevice& aDevice, DThread& aThread );
       
    35 	~DMemSpyDriverXferBuffer();
       
    36     TInt Construct( TInt aSize );
       
    37 
       
    38 public: // API
       
    39     TInt Size() const;
       
    40     TInt GrowBy( TInt aSize );
       
    41     TInt EnsureCapacity( TInt aSize );
       
    42     void Reset();
       
    43 
       
    44 private: // Internal methods
       
    45     TInt WriteToClient( TDes8* aDestinationPointer, TInt aLength );
       
    46     DThread& ClientThread();
       
    47     TUint8* Ptr();
       
    48 
       
    49 private: // Data members
       
    50     DMemSpyDriverDevice& iDevice;
       
    51 	DThread& iClientThread;
       
    52     TInt iSize;
       
    53     TAny* iBuffer;
       
    54 	};
       
    55 
       
    56 
       
    57 
       
    58 #endif