--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commands/memsampler/memsamplerdd.h	Wed Jun 23 15:52:26 2010 +0100
@@ -0,0 +1,84 @@
+// memsamplerdd.h
+// 
+// Copyright (c) 2008 - 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
+//
+
+#ifndef __MEMSAMPLERDD_H__
+#define __MEMSAMPLERDD_H__
+
+#include <e32cmn.h>
+#ifndef __KERNEL_MODE__
+#include <e32std.h>
+#endif
+
+//Uncomment this line to generate debug logging of the profiler and sampler.
+#define DEBUG_MEMSAMPLER(f) f
+//#define DEBUG_MEMSAMPLER(f)
+
+
+/**
+ * The user device driver class for controlling the memory usage sampler.
+ */
+class RMemSampler : public RBusLogicalChannel
+	{
+public:
+	enum
+		{
+		EBtraceCategory = 253
+		};
+	enum
+		{
+		ENewChunk,
+		EChangedChunk,
+		EDeletedChunk,
+		ENewSample
+		};
+	friend class DMemSamplerChannel;
+private:
+	enum TControl
+		{
+		EControlStartProfile,
+		EControlStopProfile,
+		EControlResetProfile
+		};
+	enum TRequest
+		{
+		ERequestRead
+		};
+	static inline TInt CancelRequest(TRequest aRequest);
+public:
+#ifndef __KERNEL_MODE__
+	inline TInt Open();
+	inline void Start(TInt aRate);
+	inline void Stop();
+	inline void Reset();
+#endif
+	};
+
+_LIT(KMemSamplerName,"memsamplerdd");
+
+#ifndef __KERNEL_MODE__
+
+inline TInt RMemSampler::Open()
+	{return DoCreate(KMemSamplerName,TVersion(1,0,0),KNullUnit,NULL,NULL);}
+
+inline void RMemSampler::Start(TInt aRate)
+	{DoControl(EControlStartProfile, reinterpret_cast<TAny*>(aRate));}
+
+inline void RMemSampler::Stop()
+	{DoControl(EControlStopProfile);}
+
+inline void RMemSampler::Reset()
+	{DoControl(EControlResetProfile);}
+
+
+#endif
+
+#endif