--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/perfsrv/memspy/Driver/Kernel/Include/SubChannels/MemSpyDriverLogChanBase.h	Fri Sep 17 08:38:31 2010 +0300
@@ -0,0 +1,97 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+#ifndef MEMSPYDRIVERLOGCHANBASE_H
+#define MEMSPYDRIVERLOGCHANBASE_H
+
+// System includes
+#include <e32cmn.h>
+#include <kern_priv.h>
+#ifdef __MARM__
+#include <arm.h>
+#endif
+
+// User includes
+#include "MemSpyDriverStreamWriter.h"
+
+// Classes referenced
+class DMemSpyDriverDevice;
+class DMemSpyDriverXferBuffer;
+class DMemSpyDriverOSAdaption;
+class DMemSpySuspensionManager;
+
+class DMemSpyDriverLogChanBase : public DBase
+	{
+public:
+	~DMemSpyDriverLogChanBase();
+
+protected: // Internal construction
+	DMemSpyDriverLogChanBase( DMemSpyDriverDevice& aDevice, DThread& aThread );
+    TInt BaseConstruct( TInt aTransferBufferSize = 0 );
+
+public: // API
+    /**
+     * Finish construction of the channel object
+     */
+    virtual TInt Construct();
+
+    /**
+     * Request a channel function - this function implementation (in this class)
+     * is able to perform general policing, e.g. SID, capability etc.
+     *
+     * Currently this always returns KErrNone, but none the less, derived classes
+     * should call this implementation and handle return value appropriately.
+     */
+    virtual TInt Request( TInt aFunction, TAny* a1, TAny* a2 );
+
+    /**
+     * Sub channel should return ETrue if it can handle the specified function
+     * request.
+     */
+    virtual TBool IsHandler( TInt aFunction ) const = 0;
+
+protected: // Internal access
+    DMemSpyDriverDevice& MemSpyDevice();
+    DMemSpySuspensionManager& SuspensionManager();
+
+protected: // Internal methods
+	TInt OpenTempObject( TUint aId, TObjectType aType, TBool aAllowDeadObjects = EFalse );
+	void CloseTempObject();
+    DThread& TempObjectAsThread();
+    DProcess& TempObjectAsProcess();
+
+protected: // Transfer buffer
+    RMemSpyMemStreamWriter OpenXferStream();
+    TInt OpenXferStream( RMemSpyMemStreamWriter& aWriter, TInt aRequiredSize );
+
+protected: // Internal access
+    DMemSpyDriverOSAdaption& OSAdaption();
+    inline DObject* TempObject() { return iTempObj; }
+    inline const DObject* TempObject() const { return iTempObj; }
+    //
+    inline DThread& ClientThread() { return iClientThread; }
+
+private: // Data members
+    DMemSpyDriverDevice& iDevice;
+	DThread& iClientThread;
+	DObject* iTempObj;
+    DMemSpyDriverXferBuffer* iXferBuffer;
+	};
+
+
+
+#endif