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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>plugin.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.2.18 --><center><a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="namespaces.html">Namespace List</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> </center><hr><h1>plugin.h</h1><a href="plugin_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="comment">/*</span>00002 <span class="comment"> * plugin.h</span>00003 <span class="comment"> *</span>00004 <span class="comment"> * Plugin Class Declarations</span>00005 <span class="comment"> *</span>00006 <span class="comment"> * Portable Windows Library</span>00007 <span class="comment"> *</span>00008 <span class="comment"> * Contributor(s): Snark at GnomeMeeting</span>00009 <span class="comment"> *</span>00010 <span class="comment"> * $Log: plugin.h,v $</span>00011 <span class="comment"> * Revision 1.11 2004/08/16 11:57:47 csoutheren</span>00012 <span class="comment"> * More changes for VS.net</span>00013 <span class="comment"> *</span>00014 <span class="comment"> * Revision 1.10 2004/08/16 10:55:09 csoutheren</span>00015 <span class="comment"> * Fixed problems compiling under Linux</span>00016 <span class="comment"> *</span>00017 <span class="comment"> * Revision 1.9 2004/08/16 06:40:59 csoutheren</span>00018 <span class="comment"> * Added adapters template to make device plugins available via the abstract factory interface</span>00019 <span class="comment"> *</span>00020 <span class="comment"> * Revision 1.8 2004/06/21 10:40:02 csoutheren</span>00021 <span class="comment"> * Fixed problem with dynamic plugins</span>00022 <span class="comment"> *</span>00023 <span class="comment"> * Revision 1.7 2004/06/21 00:57:40 csoutheren</span>00024 <span class="comment"> * Changed service plugin static registration to use attribute (( constructor ))</span>00025 <span class="comment"> *</span>00026 <span class="comment"> * Revision 1.6 2003/12/19 00:34:27 csoutheren</span>00027 <span class="comment"> * Ensured that older compilers do not get confused about functions wth empty</span>00028 <span class="comment"> * parameter lists. Thanks to Kilian Krause</span>00029 <span class="comment"> *</span>00030 <span class="comment"> * Revision 1.5 2003/11/19 09:29:19 csoutheren</span>00031 <span class="comment"> * Added super hack to avoid problems with multiple plugins in a single file</span>00032 <span class="comment"> *</span>00033 <span class="comment"> * Revision 1.4 2003/11/12 10:24:35 csoutheren</span>00034 <span class="comment"> * Changes to allow operation of static plugins under Windows</span>00035 <span class="comment"> *</span>00036 <span class="comment"> * Revision 1.3 2003/11/12 06:58:21 csoutheren</span>00037 <span class="comment"> * Changes to help in making static plugins autoregister under Windows</span>00038 <span class="comment"> *</span>00039 <span class="comment"> * Revision 1.2 2003/11/12 03:26:17 csoutheren</span>00040 <span class="comment"> * Initial version of plugin code from Snark of GnomeMeeting with changes</span>00041 <span class="comment"> * by Craig Southeren os Post Increment</span>00042 <span class="comment"> *</span>00043 <span class="comment"> *</span>00044 <span class="comment"> */</span>00045 00046 <span class="preprocessor">#ifndef _PLUGIN_H</span>00047 <span class="preprocessor"></span><span class="preprocessor">#define _PLUGIN_H</span>00048 <span class="preprocessor"></span>00050 <span class="comment">//</span>00051 <span class="comment">// these templates implement an adapter to make the old style device plugins appear in the new factory system</span>00052 <span class="comment">//</span>00053 00054 <span class="preprocessor">#include <<a class="code" href="pfactory_8h.html">ptlib/pfactory.h</a>></span>00055 00056 <span class="keyword">template</span> <<span class="keyword">class</span> _Abstract_T, <span class="keyword">typename</span> _Key_T = PString><a name="l00057"></a><a class="code" href="classPDevicePluginFactory.html">00057</a> <span class="keyword">class </span><a class="code" href="classPDevicePluginFactory.html">PDevicePluginFactory</a> : <span class="keyword">public</span> <a class="code" href="classPFactory.html">PFactory</a><_Abstract_T, _Key_T>00058 {00059 <span class="keyword">public</span>:<a name="l00060"></a><a class="code" href="classPDevicePluginFactory_1_1Worker.html">00060</a> <span class="keyword">class </span><a class="code" href="classPDevicePluginFactory_1_1Worker.html">Worker</a> : <span class="keyword">public</span> <a class="code" href="classPFactory.html">PFactory</a><_Abstract_T, _Key_T>::WorkerBase 00061 {00062 <span class="keyword">public</span>:<a name="l00063"></a><a class="code" href="classPDevicePluginFactory_1_1Worker.html#a0">00063</a> <a class="code" href="classPDevicePluginFactory_1_1Worker.html#a0">Worker</a>(<span class="keyword">const</span> _Key_T & key, <span class="keywordtype">bool</span> singleton = <span class="keyword">false</span>)00064 : <a class="code" href="classPFactory.html">PFactory</a><_Abstract_T, _Key_T>::<a class="code" href="classPFactory_1_1WorkerBase.html#b0">WorkerBase</a>(singleton)00065 {00066 <a class="code" href="classPFactory.html#d0">PFactory<_Abstract_T, _Key_T>::Register</a>(key, <span class="keyword">this</span>);00067 }00068 00069 <span class="keyword">protected</span>:00070 <span class="keyword">virtual</span> _Abstract_T * <a class="code" href="classPDevicePluginFactory_1_1Worker.html#b0">Create</a>(<span class="keyword">const</span> _Key_T & key) <span class="keyword">const</span>;00071 };00072 };00073 <a name="l00074"></a><a class="code" href="classPDevicePluginAdapterBase.html">00074</a> <span class="keyword">class </span><a class="code" href="classPDevicePluginAdapterBase.html">PDevicePluginAdapterBase</a>00075 {00076 <span class="keyword">public</span>:<a name="l00077"></a><a class="code" href="classPDevicePluginAdapterBase.html#a0">00077</a> <a class="code" href="classPDevicePluginAdapterBase.html#a0">PDevicePluginAdapterBase</a>()00078 { }<a name="l00079"></a><a class="code" href="classPDevicePluginAdapterBase.html#a1">00079</a> <span class="keyword">virtual</span> <a class="code" href="classPDevicePluginAdapterBase.html#a1">~PDevicePluginAdapterBase</a>()00080 { }00081 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPDevicePluginAdapterBase.html#a2">CreateFactory</a>(<span class="keyword">const</span> <a class="code" href="classPString.html">PString</a> & device) = 0;00082 };00083 00084 <span class="keyword">template</span> <<span class="keyword">typename</span> DeviceBase><a name="l00085"></a><a class="code" href="classPDevicePluginAdapter.html">00085</a> <span class="keyword">class </span><a class="code" href="classPDevicePluginAdapter.html">PDevicePluginAdapter</a> : <span class="keyword">public</span> <a class="code" href="classPDevicePluginAdapterBase.html">PDevicePluginAdapterBase</a>00086 {00087 <span class="keyword">public</span>:<a name="l00088"></a><a class="code" href="classPDevicePluginAdapter.html#s0">00088</a> <span class="keyword">typedef</span> <a class="code" href="classPDevicePluginFactory.html">PDevicePluginFactory<DeviceBase></a> <a class="code" href="classPDevicePluginFactory.html">Factory_T</a>;<a name="l00089"></a><a class="code" href="classPDevicePluginAdapter.html#s1">00089</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> Factory_T::Worker <a class="code" href="classPDevicePluginAdapter.html#s1">Worker_T</a>;<a name="l00090"></a><a class="code" href="classPDevicePluginAdapter.html#a0">00090</a> <span class="keywordtype">void</span> <a class="code" href="classPDevicePluginAdapter.html#a0">CreateFactory</a>(<span class="keyword">const</span> <a class="code" href="classPString.html">PString</a> & device)00091 { <span class="keyword">new</span> <a class="code" href="classPDevicePluginAdapter.html#s1">Worker_T</a>(device, TRUE); }00092 };00093 <a name="l00094"></a><a class="code" href="plugin_8h.html#a0">00094</a> <span class="preprocessor">#define PWLIB_PLUGIN_API_VERSION 0</span>00095 <span class="preprocessor"></span>00097 <span class="comment">//</span>00098 <span class="comment">// Ancestor Service descriptor for plugins</span>00099 <span class="comment">//</span>00100 <a name="l00101"></a><a class="code" href="classPPluginServiceDescriptor.html">00101</a> <span class="keyword">class </span><a class="code" href="classPPluginServiceDescriptor.html">PPluginServiceDescriptor</a> 00102 {00103 <span class="keyword">public</span>:<a name="l00104"></a><a class="code" href="classPPluginServiceDescriptor.html#a0">00104</a> <a class="code" href="classPPluginServiceDescriptor.html#a0">PPluginServiceDescriptor</a>(<span class="keywordtype">unsigned</span> (*_GetPluginAPIVersion)())00105 : <a class="code" href="classPPluginServiceDescriptor.html#m0">GetPluginAPIVersion</a>(_GetPluginAPIVersion)00106 { }00107 00108 unsigned (*<a class="code" href="classPPluginServiceDescriptor.html#m0">GetPluginAPIVersion</a>)();00109 };00110 00111 00113 <span class="comment">//</span>00114 <span class="comment">// Define a service provided by a plugin, which consists of the following:</span>00115 <span class="comment">//</span>00116 <span class="comment">// serviceType - the base class name of the service which is used to identify</span>⌨️ 快捷键说明
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