1 // memoryaccesscmd.cpp

     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 #include <fshell/memoryaccesscmd.h>

    13 

    14 using namespace IoUtils;

    15 

    16 #ifdef FSHELL_MEMORY_ACCESS_SUPPORT

    17 __ASSERT_COMPILE(sizeof(RMemoryAccess) == sizeof(TUint32) * 3);

    18 #endif

    19 

    20 __ASSERT_COMPILE(sizeof(CMemoryAccessCommandBase) == 62*4); // Otherwise CCommandBase has changed or RMemoryAccess has

    21 

    22 EXPORT_C CMemoryAccessCommandBase::CMemoryAccessCommandBase()

    23 	: CCommandBase()

    24 	{

    25 	}

    26 

    27 EXPORT_C CMemoryAccessCommandBase::CMemoryAccessCommandBase(TUint aFlags)

    28 	: CCommandBase(aFlags)

    29 	{

    30 	}

    31 

    32 EXPORT_C void CMemoryAccessCommandBase::LoadMemoryAccessL()

    33 	{

    34 #ifdef FSHELL_MEMORY_ACCESS_SUPPORT

    35 	__ASSERT_COMPILE(_FOFF(CMemoryAccessCommandBase, iMemAccess) == 59*4); // Otherwise something strange has gone wrong in CCommandBase

    36 	if (iMemAccess.Handle()) return; // Already open

    37 

    38 	TInt err = RMemoryAccess::LoadDriver();

    39 	if (err != KErrAlreadyExists)

    40 		{

    41 		LeaveIfErr(err, _L("Couldn't load %S.LDD"), &KMemoryAccessName);

    42 		}

    43 	LeaveIfErr(iMemAccess.Open(), _L("Couldn't open RMemoryAccess"));

    44 #else

    45 	LeaveIfErr(KErrNotSupported, _L("Can't load memoryaccess because FSHELL_MEMORY_ACCESS_SUPPORT is not defined");

    46 #endif

    47 	}

    48 

    49 EXPORT_C CMemoryAccessCommandBase::~CMemoryAccessCommandBase()

    50 	{

    51 #ifdef FSHELL_MEMORY_ACCESS_SUPPORT

    52 	iMemAccess.Close();

    53 	// Don't unload memaccess, we want to keep loaded so it can monitor stuff

    54 #endif

    55 	}