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			194 lines
		
	
	
		
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<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!--
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              This file is generated from xml source: DO NOT EDIT
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      -->
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<title>mod_so - Apache HTTP Server</title>
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<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
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<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
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<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" />
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<link href="../images/favicon.ico" rel="shortcut icon" /></head>
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<body>
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<div id="page-header">
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<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
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<p class="apache">Apache HTTP Server Version 2.3</p>
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<img alt="" src="../images/feather.gif" /></div>
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<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div>
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<div id="path">
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<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.3</a> > <a href="./">Modules</a></div>
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<div id="page-content">
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<div id="preamble"><h1>Apache Module mod_so</h1>
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<div class="toplang">
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<p><span>Available Languages: </span><a href="../en/mod/mod_so.html" title="English"> en </a> |
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<a href="../fr/mod/mod_so.html" hreflang="fr" rel="alternate" title="Français"> fr </a> |
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<a href="../ja/mod/mod_so.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
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<a href="../ko/mod/mod_so.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
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<a href="../tr/mod/mod_so.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p>
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</div>
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<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Loading of executable code and
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modules into the server at start-up or restart time</td></tr>
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<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr>
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<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>so_module</td></tr>
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<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_so.c</td></tr>
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<tr><th><a href="module-dict.html#Compatibility">Compatibility:</a></th><td>This is a Base module (always included) on 
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Windows</td></tr></table>
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<h3>Summary</h3>
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    <p>On selected operating systems this module can be used to
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    load modules into Apache at runtime via the <a href="../dso.html">Dynamic Shared Object</a> (DSO) mechanism,
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    rather than requiring a recompilation.</p>
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    <p>On Unix, the loaded code typically comes from shared object
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    files (usually with <code>.so</code> extension), on Windows
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    this may either the <code>.so</code> or <code>.dll</code>
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    extension.</p>
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    <div class="warning"><h3>Warning</h3>
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    <p>Apache 1.3 modules cannot be directly used
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    with Apache 2.0 - the module must be modified to dynamically
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    load or compile into Apache 2.0.</p>
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    </div>
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</div>
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<div id="quickview"><h3 class="directives">Directives</h3>
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<ul id="toc">
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<li><img alt="" src="../images/down.gif" /> <a href="#loadfile">LoadFile</a></li>
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<li><img alt="" src="../images/down.gif" /> <a href="#loadmodule">LoadModule</a></li>
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</ul>
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<h3>Topics</h3>
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<ul id="topics">
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<li><img alt="" src="../images/down.gif" /> <a href="#windows">Creating Loadable Modules for Windows</a></li>
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</ul></div>
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<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="windows" id="windows">Creating Loadable Modules for Windows</a></h2>
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    <div class="note"><h3>Note</h3>
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    <p>The module name format changed for Windows
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    with Apache 1.3.15 and 2.0 - the modules are now named as
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    mod_foo.so</p>
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    <p>While mod_so still loads modules with
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    ApacheModuleFoo.dll names, the new naming convention is
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    preferred; if you are converting your loadable module for 2.0,
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    please fix the name to this 2.0 convention.</p></div>
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    <p>The Apache module API is unchanged between the Unix and
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    Windows versions. Many modules will run on Windows with no or
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    little change from Unix, although others rely on aspects of the
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    Unix architecture which are not present in Windows, and will
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    not work.</p>
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    <p>When a module does work, it can be added to the server in
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    one of two ways. As with Unix, it can be compiled into the
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    server. Because Apache for Windows does not have the
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    <code>Configure</code> program of Apache for Unix, the module's
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    source file must be added to the ApacheCore project file, and
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    its symbols must be added to the
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    <code>os\win32\modules.c</code> file.</p>
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    <p>The second way is to compile the module as a DLL, a shared
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    library that can be loaded into the server at runtime, using
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    the <code><code class="directive">LoadModule</code></code>
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    directive. These module DLLs can be distributed and run on any
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    Apache for Windows installation, without recompilation of the
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    server.</p>
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    <p>To create a module DLL, a small change is necessary to the
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    module's source file: The module record must be exported from
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    the DLL (which will be created later; see below). To do this,
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    add the <code>AP_MODULE_DECLARE_DATA</code> (defined in the
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    Apache header files) to your module's module record definition.
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    For example, if your module has:</p>
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<div class="example"><p><code>
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    module foo_module;
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</code></p></div>
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    <p>Replace the above with:</p>
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<div class="example"><p><code>
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    module AP_MODULE_DECLARE_DATA foo_module;
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</code></p></div>
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    <p>Note that this will only be activated on Windows, so the
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    module can continue to be used, unchanged, with Unix if needed.
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    Also, if you are familiar with <code>.DEF</code> files, you can
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    export the module record with that method instead.</p>
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    <p>Now, create a DLL containing your module. You will need to
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    link this against the libhttpd.lib export library that is
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    created when the libhttpd.dll shared library is compiled. You
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    may also have to change the compiler settings to ensure that
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    the Apache header files are correctly located. You can find
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    this library in your server root's modules directory. It is
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    best to grab an existing module .dsp file from the tree to
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    assure the build environment is configured correctly, or
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    alternately compare the compiler and link options to your
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    .dsp.</p>
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    <p>This should create a DLL version of your module. Now simply
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    place it in the <code>modules</code> directory of your server
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    root, and use the <code class="directive">LoadModule</code>
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    directive to load it.</p>
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</div>
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<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
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<div class="directive-section"><h2><a name="LoadFile" id="LoadFile">LoadFile</a> <a name="loadfile" id="loadfile">Directive</a></h2>
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<table class="directive">
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<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Link in the named object file or library</td></tr>
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<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>LoadFile <em>filename</em> [<em>filename</em>] ...</code></td></tr>
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<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config</td></tr>
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<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr>
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<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_so</td></tr>
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</table>
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    <p>The LoadFile directive links in the named object files or
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    libraries when the server is started or restarted; this is used
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    to load additional code which may be required for some module
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    to work. <em>Filename</em> is either an absolute path or
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    relative to <a href="core.html#serverroot">ServerRoot</a>.</p>
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    <p>For example:</p>
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    <div class="example"><p><code>LoadFile libexec/libxmlparse.so</code></p></div>
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</div>
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<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
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<div class="directive-section"><h2><a name="LoadModule" id="LoadModule">LoadModule</a> <a name="loadmodule" id="loadmodule">Directive</a></h2>
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<table class="directive">
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<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Links in the object file or library, and adds to the list
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of active modules</td></tr>
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<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>LoadModule <em>module filename</em></code></td></tr>
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<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config</td></tr>
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<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr>
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<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_so</td></tr>
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</table>
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    <p>The LoadModule directive links in the object file or library
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    <em>filename</em> and adds the module structure named
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    <em>module</em> to the list of active modules. <em>Module</em>
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    is the name of the external variable of type
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    <code>module</code> in the file, and is listed as the <a href="module-dict.html#ModuleIdentifier">Module Identifier</a>
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    in the module documentation. Example:</p>
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    <div class="example"><p><code>
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      LoadModule status_module modules/mod_status.so
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    </code></p></div>
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    <p>loads the named module from the modules subdirectory of the
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    ServerRoot.</p>
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</div>
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</div>
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<div class="bottomlang">
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<p><span>Available Languages: </span><a href="../en/mod/mod_so.html" title="English"> en </a> |
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<a href="../fr/mod/mod_so.html" hreflang="fr" rel="alternate" title="Français"> fr </a> |
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<a href="../ja/mod/mod_so.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
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						||
<a href="../ko/mod/mod_so.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
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<a href="../tr/mod/mod_so.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p>
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</div><div id="footer">
 | 
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<p class="apache">Copyright 2010 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
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<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div>
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