晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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    </style><title>Module threads from libxml2</title></head><body bgcolor="#8b7765" text="#000000" link="#a06060" vlink="#000000"><table border="0" width="100%" cellpadding="5" cellspacing="0" align="center"><tr><td width="120"><a href="http://swpat.ffii.org/"><img src="../epatents.png" alt="Action against software patents" /></a></td><td width="180"><a href="http://www.gnome.org/"><img src="../gnome2.png" alt="Gnome2 Logo" /></a><a href="http://www.w3.org/Status"><img src="../w3c.png" alt="W3C Logo" /></a><a href="http://www.redhat.com/"><img src="../redhat.gif" alt="Red Hat Logo" /></a><div align="left"><a href="http://xmlsoft.org/"><img src="../Libxml2-Logo-180x168.gif" alt="Made with Libxml2 Logo" /></a></div></td><td><table border="0" width="90%" cellpadding="2" cellspacing="0" align="center" bgcolor="#000000"><tr><td><table width="100%" border="0" cellspacing="1" cellpadding="3" bgcolor="#fffacd"><tr><td align="center"><h1></h1><h2>Module threads from libxml2</h2></td></tr></table></td></tr></table></td></tr></table><table border="0" cellpadding="4" cellspacing="0" width="100%" align="center"><tr><td bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="2" width="100%"><tr><td valign="top" width="200" bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="1" width="100%" bgcolor="#000000"><tr><td><table width="100%" border="0" cellspacing="1" cellpadding="3"><tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>API Menu</b></center></td></tr><tr><td bgcolor="#fffacd"><form action="../search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="20" value="" /><input name="submit" type="submit" value="Search ..." /></form><ul><li><a style="font-weight:bold" href="../index.html">Main Menu</a></li><li><a style="font-weight:bold" href="../docs.html">Developer Menu</a></li><li><a style="font-weight:bold" href="../examples/index.html">Code Examples</a></li><li><a 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bgcolor="#fffacd"><ul><li><a href="http://mail.gnome.org/archives/xml/">Mail archive</a></li><li><a href="http://xmlsoft.org/XSLT/">XSLT libxslt</a></li><li><a href="http://phd.cs.unibo.it/gdome2/">DOM gdome2</a></li><li><a href="http://www.aleksey.com/xmlsec/">XML-DSig xmlsec</a></li><li><a href="ftp://xmlsoft.org/">FTP</a></li><li><a href="http://www.zlatkovic.com/projects/libxml/">Windows binaries</a></li><li><a href="http://opencsw.org/packages/libxml2">Solaris binaries</a></li><li><a href="http://www.explain.com.au/oss/libxml2xslt.html">MacOsX binaries</a></li><li><a href="http://lxml.de/">lxml Python bindings</a></li><li><a href="http://cpan.uwinnipeg.ca/dist/XML-LibXML">Perl bindings</a></li><li><a href="http://libxmlplusplus.sourceforge.net/">C++ bindings</a></li><li><a href="http://www.zend.com/php5/articles/php5-xmlphp.php#Heading4">PHP bindings</a></li><li><a href="http://sourceforge.net/projects/libxml2-pas/">Pascal bindings</a></li><li><a href="http://libxml.rubyforge.org/">Ruby bindings</a></li><li><a href="http://tclxml.sourceforge.net/">Tcl bindings</a></li><li><a href="http://bugzilla.gnome.org/buglist.cgi?product=libxml2">Bug Tracker</a></li></ul></td></tr></table></td></tr></table></td><td valign="top" bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="1" width="100%"><tr><td><table border="0" cellspacing="0" cellpadding="1" width="100%" bgcolor="#000000"><tr><td><table border="0" cellpadding="3" cellspacing="1" width="100%"><tr><td bgcolor="#fffacd"><table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="libxml-schematron.html"><img src="left.png" width="24" height="24" border="0" alt="Prev" /></a></td><th align="left"><a href="libxml-schematron.html">schematron</a></th><td><a accesskey="u" href="index.html"><img src="up.png" width="24" height="24" border="0" alt="Up" /></a></td><th align="left"><a href="index.html">API documentation</a></th><td><a accesskey="h" href="../index.html"><img src="home.png" width="24" height="24" border="0" alt="Home" /></a></td><th align="center"><a href="../index.html">The XML C parser and toolkit of Gnome</a></th><th align="right"><a href="libxml-tree.html">tree</a></th><td><a accesskey="n" href="libxml-tree.html"><img src="right.png" width="24" height="24" border="0" alt="Next" /></a></td></tr></table><p>set of generic threading related routines should work with pthreads, Windows native or TLS threads </p><h2>Table of Contents</h2><pre class="programlisting">Structure <a href="#xmlMutex">xmlMutex</a><br />struct _xmlMutex
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Typedef <a href="libxml-threads.html#xmlMutex">xmlMutex</a> * <a name="xmlMutexPtr" id="xmlMutexPtr">xmlMutexPtr</a>
</pre><pre class="programlisting">Structure <a href="#xmlRMutex">xmlRMutex</a><br />struct _xmlRMutex
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Typedef <a href="libxml-threads.html#xmlRMutex">xmlRMutex</a> * <a name="xmlRMutexPtr" id="xmlRMutexPtr">xmlRMutexPtr</a>
</pre><pre class="programlisting">void	<a href="#xmlCleanupThreads">xmlCleanupThreads</a>		(void)</pre>
<pre class="programlisting">int	<a href="#xmlDllMain">xmlDllMain</a>			(void * hinstDLL, <br />					 unsigned long fdwReason, <br />					 void * lpvReserved)</pre>
<pre class="programlisting">void	<a href="#xmlFreeMutex">xmlFreeMutex</a>			(<a href="libxml-threads.html#xmlMutexPtr">xmlMutexPtr</a> tok)</pre>
<pre class="programlisting">void	<a href="#xmlFreeRMutex">xmlFreeRMutex</a>			(<a href="libxml-threads.html#xmlRMutexPtr">xmlRMutexPtr</a> tok)</pre>
<pre class="programlisting"><a href="libxml-globals.html#xmlGlobalStatePtr">xmlGlobalStatePtr</a>	<a href="#xmlGetGlobalState">xmlGetGlobalState</a>	(void)</pre>
<pre class="programlisting">int	<a href="#xmlGetThreadId">xmlGetThreadId</a>			(void)</pre>
<pre class="programlisting">void	<a href="#xmlInitThreads">xmlInitThreads</a>			(void)</pre>
<pre class="programlisting">int	<a href="#xmlIsMainThread">xmlIsMainThread</a>			(void)</pre>
<pre class="programlisting">void	<a href="#xmlLockLibrary">xmlLockLibrary</a>			(void)</pre>
<pre class="programlisting">void	<a href="#xmlMutexLock">xmlMutexLock</a>			(<a href="libxml-threads.html#xmlMutexPtr">xmlMutexPtr</a> tok)</pre>
<pre class="programlisting">void	<a href="#xmlMutexUnlock">xmlMutexUnlock</a>			(<a href="libxml-threads.html#xmlMutexPtr">xmlMutexPtr</a> tok)</pre>
<pre class="programlisting"><a href="libxml-threads.html#xmlMutexPtr">xmlMutexPtr</a>	<a href="#xmlNewMutex">xmlNewMutex</a>		(void)</pre>
<pre class="programlisting"><a href="libxml-threads.html#xmlRMutexPtr">xmlRMutexPtr</a>	<a href="#xmlNewRMutex">xmlNewRMutex</a>		(void)</pre>
<pre class="programlisting">void	<a href="#xmlRMutexLock">xmlRMutexLock</a>			(<a href="libxml-threads.html#xmlRMutexPtr">xmlRMutexPtr</a> tok)</pre>
<pre class="programlisting">void	<a href="#xmlRMutexUnlock">xmlRMutexUnlock</a>			(<a href="libxml-threads.html#xmlRMutexPtr">xmlRMutexPtr</a> tok)</pre>
<pre class="programlisting">void	<a href="#xmlUnlockLibrary">xmlUnlockLibrary</a>		(void)</pre>
<h2>Description</h2>
<h3><a name="xmlMutex" id="xmlMutex">Structure xmlMutex</a></h3><pre class="programlisting">Structure xmlMutex<br />struct _xmlMutex {
The content of this structure is not made public by the API.
}</pre><h3><a name="xmlRMutex" id="xmlRMutex">Structure xmlRMutex</a></h3><pre class="programlisting">Structure xmlRMutex<br />struct _xmlRMutex {
The content of this structure is not made public by the API.
}</pre><h3><a name="xmlCleanupThreads" id="xmlCleanupThreads"></a>Function: xmlCleanupThreads</h3><pre class="programlisting">void	xmlCleanupThreads		(void)<br />
</pre><p>xmlCleanupThreads() is used to to cleanup all the thread related data of the libxml2 library once processing has ended. WARNING: if your application is multithreaded or has plugin support calling this may crash the application if another thread or a plugin is still using libxml2. It's sometimes very hard to guess if libxml2 is in use in the application, some libraries or plugins may use it without notice. In case of doubt abstain from calling this function or do it just before calling exit() to avoid leak reports from valgrind !</p>
<h3><a name="xmlDllMain" id="xmlDllMain"></a>Function: xmlDllMain</h3><pre class="programlisting">int	xmlDllMain			(void * hinstDLL, <br />					 unsigned long fdwReason, <br />					 void * lpvReserved)<br />
</pre><p></p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>hinstDLL</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>fdwReason</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>lpvReserved</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td></td></tr></tbody></table></div><h3><a name="xmlFreeMutex" id="xmlFreeMutex"></a>Function: xmlFreeMutex</h3><pre class="programlisting">void	xmlFreeMutex			(<a href="libxml-threads.html#xmlMutexPtr">xmlMutexPtr</a> tok)<br />
</pre><p>xmlFreeMutex() is used to reclaim resources associated with a libxml2 token struct.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>tok</tt></i>:</span></td><td>the simple mutex</td></tr></tbody></table></div><h3><a name="xmlFreeRMutex" id="xmlFreeRMutex"></a>Function: xmlFreeRMutex</h3><pre class="programlisting">void	xmlFreeRMutex			(<a href="libxml-threads.html#xmlRMutexPtr">xmlRMutexPtr</a> tok)<br />
</pre><p>xmlRFreeMutex() is used to reclaim resources associated with a reentrant mutex.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>tok</tt></i>:</span></td><td>the reentrant mutex</td></tr></tbody></table></div><h3><a name="xmlGetGlobalState" id="xmlGetGlobalState"></a>Function: xmlGetGlobalState</h3><pre class="programlisting"><a href="libxml-globals.html#xmlGlobalStatePtr">xmlGlobalStatePtr</a>	xmlGetGlobalState	(void)<br />
</pre><p>xmlGetGlobalState() is called to retrieve the global state for a thread.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the thread global state or NULL in case of error</td></tr></tbody></table></div><h3><a name="xmlGetThreadId" id="xmlGetThreadId"></a>Function: xmlGetThreadId</h3><pre class="programlisting">int	xmlGetThreadId			(void)<br />
</pre><p>xmlGetThreadId() find the current thread ID number Note that this is likely to be broken on some platforms using pthreads as the specification doesn't mandate pthread_t to be an integer type</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the current thread ID number</td></tr></tbody></table></div><h3><a name="xmlInitThreads" id="xmlInitThreads"></a>Function: xmlInitThreads</h3><pre class="programlisting">void	xmlInitThreads			(void)<br />
</pre><p>xmlInitThreads() is used to to initialize all the thread related data of the libxml2 library.</p>
<h3><a name="xmlIsMainThread" id="xmlIsMainThread"></a>Function: xmlIsMainThread</h3><pre class="programlisting">int	xmlIsMainThread			(void)<br />
</pre><p>xmlIsMainThread() check whether the current thread is the main thread.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>1 if the current thread is the main thread, 0 otherwise</td></tr></tbody></table></div><h3><a name="xmlLockLibrary" id="xmlLockLibrary"></a>Function: xmlLockLibrary</h3><pre class="programlisting">void	xmlLockLibrary			(void)<br />
</pre><p>xmlLockLibrary() is used to take out a re-entrant lock on the libxml2 library.</p>
<h3><a name="xmlMutexLock" id="xmlMutexLock"></a>Function: xmlMutexLock</h3><pre class="programlisting">void	xmlMutexLock			(<a href="libxml-threads.html#xmlMutexPtr">xmlMutexPtr</a> tok)<br />
</pre><p>xmlMutexLock() is used to lock a libxml2 token.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>tok</tt></i>:</span></td><td>the simple mutex</td></tr></tbody></table></div><h3><a name="xmlMutexUnlock" id="xmlMutexUnlock"></a>Function: xmlMutexUnlock</h3><pre class="programlisting">void	xmlMutexUnlock			(<a href="libxml-threads.html#xmlMutexPtr">xmlMutexPtr</a> tok)<br />
</pre><p>xmlMutexUnlock() is used to unlock a libxml2 token.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>tok</tt></i>:</span></td><td>the simple mutex</td></tr></tbody></table></div><h3><a name="xmlNewMutex" id="xmlNewMutex"></a>Function: xmlNewMutex</h3><pre class="programlisting"><a href="libxml-threads.html#xmlMutexPtr">xmlMutexPtr</a>	xmlNewMutex		(void)<br />
</pre><p>xmlNewMutex() is used to allocate a libxml2 token struct for use in synchronizing access to data.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new simple mutex pointer or NULL in case of error</td></tr></tbody></table></div><h3><a name="xmlNewRMutex" id="xmlNewRMutex"></a>Function: xmlNewRMutex</h3><pre class="programlisting"><a href="libxml-threads.html#xmlRMutexPtr">xmlRMutexPtr</a>	xmlNewRMutex		(void)<br />
</pre><p>xmlRNewMutex() is used to allocate a reentrant mutex for use in synchronizing access to data. token_r is a re-entrant lock and thus useful for synchronizing access to data structures that may be manipulated in a recursive fashion.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new reentrant mutex pointer or NULL in case of error</td></tr></tbody></table></div><h3><a name="xmlRMutexLock" id="xmlRMutexLock"></a>Function: xmlRMutexLock</h3><pre class="programlisting">void	xmlRMutexLock			(<a href="libxml-threads.html#xmlRMutexPtr">xmlRMutexPtr</a> tok)<br />
</pre><p>xmlRMutexLock() is used to lock a libxml2 token_r.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>tok</tt></i>:</span></td><td>the reentrant mutex</td></tr></tbody></table></div><h3><a name="xmlRMutexUnlock" id="xmlRMutexUnlock"></a>Function: xmlRMutexUnlock</h3><pre class="programlisting">void	xmlRMutexUnlock			(<a href="libxml-threads.html#xmlRMutexPtr">xmlRMutexPtr</a> tok)<br />
</pre><p>xmlRMutexUnlock() is used to unlock a libxml2 token_r.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>tok</tt></i>:</span></td><td>the reentrant mutex</td></tr></tbody></table></div><h3><a name="xmlUnlockLibrary" id="xmlUnlockLibrary"></a>Function: xmlUnlockLibrary</h3><pre class="programlisting">void	xmlUnlockLibrary		(void)<br />
</pre><p>xmlUnlockLibrary() is used to release a re-entrant lock on the libxml2 library.</p>
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