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| 35 | <th width="100%" align="center">libxml2 Reference Manual</th>
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| 38 | <h2>
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| 39 | <span class="refentrytitle">xmlmodule</span>
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| 40 | </h2>
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| 41 | <p>xmlmodule - dynamic module loading</p>
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| 42 | <p>basic API for dynamic module loading, used by libexslt added in 2.6.17 </p>
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| 43 | <p>Author(s): Joel W. Reed </p>
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| 44 | <div class="refsynopsisdiv">
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| 45 | <h2>Synopsis</h2>
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| 46 | <pre class="synopsis">typedef struct _xmlModule <a href="#xmlModule">xmlModule</a>;
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| 47 | typedef <a href="libxml2-xmlmodule.html#xmlModule">xmlModule</a> * <a href="#xmlModulePtr">xmlModulePtr</a>;
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| 48 | typedef enum <a href="#xmlModuleOption">xmlModuleOption</a>;
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| 49 | int <a href="#xmlModuleFree">xmlModuleFree</a> (<a href="libxml2-xmlmodule.html#xmlModulePtr">xmlModulePtr</a> module);
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| 50 | int <a href="#xmlModuleSymbol">xmlModuleSymbol</a> (<a href="libxml2-xmlmodule.html#xmlModulePtr">xmlModulePtr</a> module, <br/> const char * name, <br/> void ** symbol);
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| 51 | <a href="libxml2-xmlmodule.html#xmlModulePtr">xmlModulePtr</a> <a href="#xmlModuleOpen">xmlModuleOpen</a> (const char * name, <br/> int options);
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| 52 | int <a href="#xmlModuleClose">xmlModuleClose</a> (<a href="libxml2-xmlmodule.html#xmlModulePtr">xmlModulePtr</a> module);
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| 53 | </pre>
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| 54 | </div>
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| 55 | <div class="refsect1" lang="en">
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| 56 | <h2>Description</h2>
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| 57 | </div>
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| 58 | <div class="refsect1" lang="en">
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| 59 | <h2>Details</h2>
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| 60 | <div class="refsect2" lang="en">
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| 61 | <div class="refsect2" lang="en"><h3><a name="xmlModule">Structure </a>xmlModule</h3><pre class="programlisting">struct _xmlModule {
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| 62 | The content of this structure is not made public by the API.
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| 63 | } xmlModule;
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| 64 | </pre><p/>
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| 65 | </div>
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| 66 | <hr/>
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| 67 | <div class="refsect2" lang="en"><h3><a name="xmlModuleOption">Enum </a>xmlModuleOption</h3><pre class="programlisting">enum <a href="#xmlModuleOption">xmlModuleOption</a> {
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| 68 | <a name="XML_MODULE_LAZY">XML_MODULE_LAZY</a> = 1 /* lazy binding */
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| 69 | <a name="XML_MODULE_LOCAL">XML_MODULE_LOCAL</a> = 2 /* local binding */
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| 70 | };
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| 71 | </pre><p/>
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| 72 | </div>
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| 73 | <hr/>
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| 74 | <div class="refsect2" lang="en"><h3><a name="xmlModulePtr">Typedef </a>xmlModulePtr</h3><pre class="programlisting"><a href="libxml2-xmlmodule.html#xmlModule">xmlModule</a> * xmlModulePtr;
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| 75 | </pre><p>A handle to a dynamically loaded module</p>
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| 76 | </div>
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| 77 | <hr/>
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| 78 | <div class="refsect2" lang="en"><h3><a name="xmlModuleClose"/>xmlModuleClose ()</h3><pre class="programlisting">int xmlModuleClose (<a href="libxml2-xmlmodule.html#xmlModulePtr">xmlModulePtr</a> module)<br/>
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| 79 | </pre><p>The close operations unload the associated module and free the data associated to the module.</p>
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| 80 | <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>module</tt></i>:</span></td><td>the module handle</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of argument error and -2 if the module could not be closed/unloaded.</td></tr></tbody></table></div></div>
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| 81 | <hr/>
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| 82 | <div class="refsect2" lang="en"><h3><a name="xmlModuleFree"/>xmlModuleFree ()</h3><pre class="programlisting">int xmlModuleFree (<a href="libxml2-xmlmodule.html#xmlModulePtr">xmlModulePtr</a> module)<br/>
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| 83 | </pre><p>The free operations free the data associated to the module but does not unload the associated shared library which may still be in use.</p>
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| 84 | <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>module</tt></i>:</span></td><td>the module handle</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of argument error</td></tr></tbody></table></div></div>
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| 85 | <hr/>
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| 86 | <div class="refsect2" lang="en"><h3><a name="xmlModuleOpen"/>xmlModuleOpen ()</h3><pre class="programlisting"><a href="libxml2-xmlmodule.html#xmlModulePtr">xmlModulePtr</a> xmlModuleOpen (const char * name, <br/> int options)<br/>
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| 87 | </pre><p>Opens a module/shared library given its name or path NOTE: that due to portability issues, behaviour can only be guaranteed with @name using ASCII. We canot guarantee that an UTF-8 string would work, which is why name is a const char * and not a const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * . TODO: options are not yet implemented.</p>
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| 88 | <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the module name</td></tr><tr><td><span class="term"><i><tt>options</tt></i>:</span></td><td>a set of <a href="libxml2-xmlmodule.html#xmlModuleOption">xmlModuleOption</a></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a handle for the module or NULL in case of error</td></tr></tbody></table></div></div>
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| 89 | <hr/>
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| 90 | <div class="refsect2" lang="en"><h3><a name="xmlModuleSymbol"/>xmlModuleSymbol ()</h3><pre class="programlisting">int xmlModuleSymbol (<a href="libxml2-xmlmodule.html#xmlModulePtr">xmlModulePtr</a> module, <br/> const char * name, <br/> void ** symbol)<br/>
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| 91 | </pre><p>Lookup for a symbol address in the given module NOTE: that due to portability issues, behaviour can only be guaranteed with @name using ASCII. We canot guarantee that an UTF-8 string would work, which is why name is a const char * and not a const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * .</p>
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| 92 | <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>module</tt></i>:</span></td><td>the module</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the symbol</td></tr><tr><td><span class="term"><i><tt>symbol</tt></i>:</span></td><td>the resulting symbol address</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the symbol was found, or -1 in case of error</td></tr></tbody></table></div></div>
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