1 // memoryaccesscmd.h

     2 // 

     3 // Copyright (c) 2010 Accenture. All rights reserved.

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

     5 // under the terms of the "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 // Accenture - Initial contribution

    11 //

    12 #ifndef MEMORYACCESSCMD_H

    13 #define MEMORYACCESSCMD_H

    14 

    15 #include <fshell/ioutils.h>

    16 #include <fshell/common.mmh>

    17 

    18 #ifdef FSHELL_MEMORY_ACCESS_SUPPORT

    19 #include <fshell/memoryaccess.h>

    20 #endif

    21 

    22 namespace IoUtils

    23 	{

    24 

    25 /* CMemoryAccessCommandBase

    26  * This class is intended to be used by commands that can make use of memory access but don't

    27  * necessarily require it. By deriving from CMemoryAccessCommandBase instead of CCommandBase,

    28  * you reduce the number of times "#ifdef FSHELL_MEMORY_ACCESS_SUPPORT" needs sprinkling through

    29  * your code. The only bits you need to guard are the bits that use iMemAccess and that call 

    30  * LoadMemoryAccessL (although you could trap that instead if you really wanted). No need to 

    31  * include memoryaccess.h or close iMemAccess, and you can include this header and derive from

    32  * this class unconditionally.

    33  */

    34 

    35 class CMemoryAccessCommandBase : public CCommandBase

    36 	{

    37 public:

    38 	IMPORT_C CMemoryAccessCommandBase();

    39 	IMPORT_C CMemoryAccessCommandBase(TUint aFlags);

    40 

    41 	IMPORT_C void LoadMemoryAccessL();

    42 	IMPORT_C ~CMemoryAccessCommandBase();

    43 

    44 #ifdef FSHELL_MEMORY_ACCESS_SUPPORT

    45 protected:

    46 	RMemoryAccess iMemAccess;

    47 #else

    48 private:

    49 	// So that we're the same size regardless

    50 	TUint32 iPadding[3];

    51 #endif

    52 	};

    53 

    54 	}

    55 

    56 #endif // MEMORYACCESSCMD_H