libraries/iosrv/client/memoryaccesscmd.cpp
changeset 0 7f656887cf89
child 69 849a0b46c767
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libraries/iosrv/client/memoryaccesscmd.cpp	Wed Jun 23 15:52:26 2010 +0100
@@ -0,0 +1,55 @@
+// 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
+	}