diff -r 71ad690e91f5 -r d6dafc5d983f javauis/m2g_qt/inc/CSynchronization.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/m2g_qt/inc/CSynchronization.h	Fri Oct 15 12:29:39 2010 +0300
@@ -0,0 +1,85 @@
+/*
+* Copyright (c) 2005-2006 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:  M3GCore function call serialization and synchronization
+*
+*/
+
+#ifndef CSYNCHRONIZATION_H
+#define CSYNCHRONIZATION_H
+
+// INCLUDE FILES
+#include <e32std.h>
+#include <e32base.h>
+
+// CLASS DECLARATION
+/**
+ * @class CSynchronization
+ */
+class CSynchronization : public CBase
+{
+public:
+    /**
+     * Two-phased constructor.
+         */
+    static CSynchronization* InstanceL();
+
+    /**
+         * Dtor
+         */
+    ~CSynchronization();
+
+    /**
+       * Locks the semaphore
+       */
+    void Lock();
+
+    /**
+       * Unlocks the semaphore
+       */
+    void Unlock();
+
+    /**
+    * Sets error code for error occured during lock period
+    */
+    void SetErrorCode(TInt aCode);
+
+    /**
+    * Returns error string set with SetErrorString
+    */
+    TInt GetErrorCode();
+
+private: // METHODS
+    /**
+      * Constructor
+      */
+    CSynchronization();
+
+    /**
+    * Two-phased constructor.
+    * @return New object
+    */
+    static CSynchronization* NewL();
+
+    /**
+     * Constructor
+     */
+    void ConstructL();
+
+private: // MEMBER VARIABLES
+    static CSynchronization* iSelf;
+    RCriticalSection iGuard;
+    TInt iErrorCode;
+};
+
+#endif // CSYNCHRONIZATION_H