docs/api_reference/STL/stldbstl_global_functionsunlock_mutex.html

   1 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
   2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
   3 <html xmlns="http://www.w3.org/1999/xhtml">
   4   <head>
   5     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
   6     <title>unlock_mutex</title>
   7     <link rel="stylesheet" href="apiReference.css" type="text/css" />
   8     <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
   9     <link rel="start" href="index.html" title="Berkeley DB C++ Standard Template Library API Reference" />
  10     <link rel="up" href="dbstl_global_functions.html" title="Chapter 1.  Dbstl Global Public Functions" />
  11     <link rel="prev" href="stldbstl_global_functionslock_mutex.html" title="lock_mutex" />
  12     <link rel="next" href="stldbstl_global_functionsfree_mutex.html" title="free_mutex" />
  13   </head>
  14   <body>
  15     <div xmlns="" class="navheader">
  16       <div class="libver">
  17         <p>Library Version 11.2.5.3</p>
  18       </div>
  19       <table width="100%" summary="Navigation header">
  20         <tr>
  21           <th colspan="3" align="center">unlock_mutex</th>
  22         </tr>
  23         <tr>
  24           <td width="20%" align="left"><a accesskey="p" href="stldbstl_global_functionslock_mutex.html">Prev</a> </td>
  25           <th width="60%" align="center">Chapter 1.
  26  Dbstl Global Public Functions  </th>
  27           <td width="20%" align="right"> <a accesskey="n" href="stldbstl_global_functionsfree_mutex.html">Next</a></td>
  28         </tr>
  29       </table>
  30       <hr />
  31     </div>
  32     <div class="sect1" lang="en" xml:lang="en">
  33       <div class="titlepage">
  34         <div>
  35           <div>
  36             <h2 class="title" style="clear: both"><a id="stldbstl_global_functionsunlock_mutex"></a>unlock_mutex</h2>
  37           </div>
  38         </div>
  39       </div>
  40       <div class="sect2" lang="en" xml:lang="en">
  41         <div class="titlepage">
  42           <div>
  43             <div>
  44               <h3 class="title"><a id="stldbstl_global_functionsunlock_mutex_details"></a>Function Details</h3>
  45             </div>
  46           </div>
  47         </div>
  48         <pre class="programlisting">
  49  int unlock_mutex(db_mutex_t mtx)
  50  </pre>
  51         <p>Unlock a mutex, and return immediately. </p>
  52         <div class="sect3" lang="en" xml:lang="en">
  53           <div class="titlepage">
  54             <div>
  55               <div>
  56                 <h4 class="title"><a id="idm885536"></a>Parameters</h4>
  57               </div>
  58             </div>
  59           </div>
  60           <div class="sect4" lang="en" xml:lang="en">
  61             <div class="titlepage">
  62               <div>
  63                 <div>
  64                   <h5 class="title"><a id="idm876216"></a>mtx</h5>
  65                 </div>
  66               </div>
  67             </div>
  68             <p>The mutex handle to unlock. </p>
  69           </div>
  70         </div>
  71         <div class="sect3" lang="en" xml:lang="en">
  72           <div class="titlepage">
  73             <div>
  74               <div>
  75                 <h4 class="title"><a id="idm873200"></a>Return Value</h4>
  76               </div>
  77             </div>
  78           </div>
  79           <p>0 if succeed, non-zero otherwise, call db_strerror to get message. </p>
  80         </div>
  81       </div>
  82       <div class="sect2" lang="en" xml:lang="en">
  83         <div class="titlepage">
  84           <div>
  85             <div>
  86               <h3 class="title"><a id="idm654520"></a>Group: Mutex API based on Berkeley DB mutex.</h3>
  87             </div>
  88           </div>
  89         </div>
  90         <p>These functions are in-process mutex support which uses Berkeley DB mutex mechanisms.</p>
  91         <p>You can call these functions to do portable synchronization for your code. </p>
  92       </div>
  93       <div class="sect2" lang="en" xml:lang="en">
  94         <div class="titlepage">
  95           <div>
  96             <div>
  97               <h3 class="title"><a id="idm843184"></a>Class</h3>
  98             </div>
  99           </div>
 100         </div>
 101         <p>
 102   <a class="link" href="dbstl_global_functions.html" title="Chapter 1.  Dbstl Global Public Functions">dbstl_global_functions</a>
 103      </p>
 104       </div>
 105     </div>
 106     <div class="navfooter">
 107       <hr />
 108       <table width="100%" summary="Navigation footer">
 109         <tr>
 110           <td width="40%" align="left"><a accesskey="p" href="stldbstl_global_functionslock_mutex.html">Prev</a> </td>
 111           <td width="20%" align="center">
 112             <a accesskey="u" href="dbstl_global_functions.html">Up</a>
 113           </td>
 114           <td width="40%" align="right"> <a accesskey="n" href="stldbstl_global_functionsfree_mutex.html">Next</a></td>
 115         </tr>
 116         <tr>
 117           <td width="40%" align="left" valign="top">lock_mutex </td>
 118           <td width="20%" align="center">
 119             <a accesskey="h" href="index.html">Home</a>
 120           </td>
 121           <td width="40%" align="right" valign="top"> free_mutex</td>
 122         </tr>
 123       </table>
 124     </div>
 125   </body>
 126 </html>