Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/plugin_8h_source.html
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
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<h1>examples/Base/IPC/ClientServer/Gettingstarted/transient/test/plugin.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).</span>
<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
<a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span>
<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
<a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span>
<a name="l00007"></a>00007 <span class="comment">//</span>
<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
<a name="l00012"></a>00012 <span class="comment">//</span>
<a name="l00013"></a>00013 <span class="comment">// Description:</span>
<a name="l00014"></a>00014 <span class="comment">// Transient server example - plugin class</span>
<a name="l00015"></a>00015 <span class="comment">//</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="preprocessor">#ifndef __PLUGIN_H__</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor">#define __PLUGIN_H__</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span>
<a name="l00020"></a>00020 <span class="preprocessor">#include <e32std.h></span>
<a name="l00021"></a>00021
<a name="l00022"></a><a class="code" href="class_c_plug_in.html">00022</a> <span class="keyword">template</span> <<span class="keyword">class</span> T> <span class="keyword">class </span><a class="code" href="class_c_plug_in.html">CPlugIn</a>
<a name="l00023"></a>00023 {
<a name="l00024"></a>00024 <span class="keyword">typedef</span> T* (*TFactoryL)();
<a name="l00025"></a>00025 <span class="keyword">public</span>:
<a name="l00026"></a>00026 <span class="keyword">static</span> T* NewL(<span class="keyword">const</span> TDesC& aDllName);
<a name="l00027"></a>00027 <span class="keywordtype">void</span> Close();
<a name="l00028"></a>00028 <span class="keyword">protected</span>:
<a name="l00029"></a>00029 <span class="keyword">inline</span> <span class="keyword">virtual</span> ~<a class="code" href="class_c_plug_in.html">CPlugIn</a>() {}
<a name="l00030"></a>00030 <span class="keyword">private</span>:
<a name="l00031"></a>00031 RLibrary iLibrary;
<a name="l00032"></a>00032 };
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="keyword">template</span> <<span class="keyword">class</span> T> T* <a class="code" href="class_c_plug_in.html">CPlugIn<T>::NewL</a>(<span class="keyword">const</span> TDesC& aDllName)
<a name="l00035"></a>00035 {
<a name="l00036"></a>00036 RLibrary l;
<a name="l00037"></a>00037 User::LeaveIfError(l.Load(aDllName));
<a name="l00038"></a>00038 CleanupClosePushL(l);
<a name="l00039"></a>00039 T* plugin=TFactoryL(l.Lookup(1))();
<a name="l00040"></a>00040 <span class="keyword">static_cast<</span><a class="code" href="class_c_plug_in.html">CPlugIn<T></a>*<span class="keyword">></span>(plugin)->iLibrary=l;
<a name="l00041"></a>00041 CleanupStack::Pop();
<a name="l00042"></a>00042 <span class="keywordflow">return</span> plugin;
<a name="l00043"></a>00043 }
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="keyword">template</span> <<span class="keyword">class</span> T> <span class="keywordtype">void</span> <a class="code" href="class_c_plug_in.html">CPlugIn<T>::Close</a>()
<a name="l00046"></a>00046 {
<a name="l00047"></a>00047 RLibrary l(iLibrary);
<a name="l00048"></a>00048 <span class="keyword">delete</span> <span class="keyword">this</span>;
<a name="l00049"></a>00049 l.Close();
<a name="l00050"></a>00050 }
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="preprocessor">#endif</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span>
</pre></div></div>
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