// memoryaccesscmd.cpp

// 

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

// This component and the accompanying materials are made available

// under the terms of the "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

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

// 

// Initial Contributors:

// Accenture - Initial contribution

//

#include <fshell/memoryaccesscmd.h>

using namespace IoUtils;

#ifdef FSHELL_MEMORY_ACCESS_SUPPORT

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

#endif

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

EXPORT_C CMemoryAccessCommandBase::CMemoryAccessCommandBase()

	: CCommandBase()

	{

	}

EXPORT_C CMemoryAccessCommandBase::CMemoryAccessCommandBase(TUint aFlags)

	: CCommandBase(aFlags)

	{

	}

EXPORT_C void CMemoryAccessCommandBase::LoadMemoryAccessL()

	{

#ifdef FSHELL_MEMORY_ACCESS_SUPPORT

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

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

	TInt err = RMemoryAccess::LoadDriver();

	if (err != KErrAlreadyExists)

		{

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

		}

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

#else

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

#endif

	}

EXPORT_C CMemoryAccessCommandBase::~CMemoryAccessCommandBase()

	{

#ifdef FSHELL_MEMORY_ACCESS_SUPPORT

	iMemAccess.Close();

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

#endif

	}