| 12
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 
 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>DB_ENV->mutex_free()</title>
    <link rel="stylesheet" href="apiReference.css" type="text/css" />
    <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
    <link rel="start" href="index.html" title="Berkeley DB C API Reference" />
    <link rel="up" href="mutex.html" title="Chapter 9.  Mutex Methods" />
    <link rel="prev" href="mutexalloc.html" title="DB_ENV->mutex_alloc()" />
    <link rel="next" href="mutexget_align.html" title="DB_ENV->mutex_get_align()" />
  </head>
  <body>
    <div xmlns="" class="navheader">
      <div class="libver">
        <p>Library Version 11.2.5.3</p>
      </div>
      <table width="100%" summary="Navigation header">
        <tr>
          <th colspan="3" align="center">DB_ENV->mutex_free()</th>
        </tr>
        <tr>
          <td width="20%" align="left"><a accesskey="p" href="mutexalloc.html">Prev</a> </td>
          <th width="60%" align="center">Chapter 9. 
                Mutex Methods 
        </th>
          <td width="20%" align="right"> <a accesskey="n" href="mutexget_align.html">Next</a></td>
        </tr>
      </table>
      <hr />
    </div>
    <div class="sect1" lang="en" xml:lang="en">
      <div class="titlepage">
        <div>
          <div>
            <h2 class="title" style="clear: both"><a id="mutexfree"></a>DB_ENV->mutex_free()</h2>
          </div>
        </div>
      </div>
      <pre class="programlisting">#include <db.h>
int
DB_ENV->mutex_free(DB_ENV *dbenv, db_mutex_t mutex);  </pre>
      <p>
            The <code class="methodname">DB_ENV->mutex_free()</code> method discards a mutex allocated by 
            <a class="xref" href="mutexalloc.html" title="DB_ENV->mutex_alloc()">DB_ENV->mutex_alloc()</a>.
    </p>
      <p>
             The <code class="methodname">DB_ENV->mutex_free()</code> method may not be called before the 
             <a class="xref" href="envopen.html" title="DB_ENV->open()">DB_ENV->open()</a>  method is called.
    </p>
      <p>
         The <code class="methodname">DB_ENV->mutex_free()</code> <span>
            <span>
                  method returns a non-zero error value on failure and 0 on success.
            </span>
            
        </span>
    </p>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="idp53665936"></a>Parameters</h3>
            </div>
          </div>
        </div>
        <div class="sect3" lang="en" xml:lang="en">
          <div class="titlepage">
            <div>
              <div>
                <h4 class="title"><a id="idp53666184"></a>mutex</h4>
              </div>
            </div>
          </div>
          <p>
                          The <span class="bold"><strong>mutex</strong></span> parameter is a mutex
                          previously allocated by 
                          <a class="xref" href="mutexalloc.html" title="DB_ENV->mutex_alloc()">DB_ENV->mutex_alloc()</a>.
                     </p>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="idp53658104"></a>Errors</h3>
            </div>
          </div>
        </div>
        <p>
                         The <code class="methodname">DB_ENV->mutex_free()</code> <span>
            <span>
                 method may fail and return one of the following non-zero errors:
            </span>
            
        </span>
                    </p>
        <div class="sect3" lang="en" xml:lang="en">
          <div class="titlepage">
            <div>
              <div>
                <h4 class="title"><a id="idp53680360"></a>EINVAL</h4>
              </div>
            </div>
          </div>
          <p>
                An invalid flag value or parameter was specified.
            </p>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="idp53674456"></a>Class</h3>
            </div>
          </div>
        </div>
        <p>
                <a class="link" href="env.html" title="Chapter 5.  The DB_ENV Handle">DB_ENV</a>  
            </p>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="idp53666496"></a>See Also</h3>
            </div>
          </div>
        </div>
        <p>
                     <a class="xref" href="mutex.html#mutexlist" title="Mutex Methods">Mutex Methods</a> 
                </p>
      </div>
    </div>
    <div class="navfooter">
      <hr />
      <table width="100%" summary="Navigation footer">
        <tr>
          <td width="40%" align="left"><a accesskey="p" href="mutexalloc.html">Prev</a> </td>
          <td width="20%" align="center">
            <a accesskey="u" href="mutex.html">Up</a>
          </td>
          <td width="40%" align="right"> <a accesskey="n" href="mutexget_align.html">Next</a></td>
        </tr>
        <tr>
          <td width="40%" align="left" valign="top">DB_ENV->mutex_alloc() </td>
          <td width="20%" align="center">
            <a accesskey="h" href="index.html">Home</a>
          </td>
          <td width="40%" align="right" valign="top"> DB_ENV->mutex_get_align()</td>
        </tr>
      </table>
    </div>
  </body>
</html>
 |