TB10.1 Example Applications: examples/Base/IPC/ClientServer/Gettingstarted/transient/test/plugin.h Source File

00001 // Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).
-00002 // All rights reserved.
-00003 // This component and the accompanying materials are made available
-00004 // under the terms of "Eclipse Public License v1.0"
-00005 // which accompanies this distribution, and is available
-00006 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
-00007 //
-00008 // Initial Contributors:
-00009 // Nokia Corporation - initial contribution.
-00010 //
-00011 // Contributors:
-00012 //
-00013 // Description:
-00014 // Transient server example - plugin class
-00015 //
-00016 
-00017 #ifndef __PLUGIN_H__
-00018 #define __PLUGIN_H__
-00019 
-00020 #include <e32std.h>
-00021 
-00022 template <class T> class CPlugIn
-00023         {
-00024         typedef T* (*TFactoryL)();
-00025 public:
-00026         static T* NewL(const TDesC& aDllName);
-00027         void Close();
-00028 protected:
-00029         inline virtual ~CPlugIn() {}
-00030 private:
-00031         RLibrary iLibrary;
-00032         };
-00033 
-00034 template <class T> T* CPlugIn<T>::NewL(const TDesC& aDllName)
-00035         {
-00036         RLibrary l;
-00037         User::LeaveIfError(l.Load(aDllName));
-00038         CleanupClosePushL(l);
-00039         T* plugin=TFactoryL(l.Lookup(1))();
-00040         static_cast<CPlugIn<T>*>(plugin)->iLibrary=l;
-00041         CleanupStack::Pop();
-00042         return plugin;
-00043         }
-00044 
-00045 template <class T> void CPlugIn<T>::Close()
-00046         {
-00047         RLibrary l(iLibrary);
-00048         delete this;
-00049         l.Close();
-00050         }
-00051 
-00052 #endif
-00053 
-