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>db_env_set_func_fsync</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 API Reference" /> 10 <link rel="up" href="setfunc.html" title="Appendix 3. Berkeley DB Application Space Static Functions" /> 11 <link rel="prev" href="db_env_set_func_free.html" title="db_env_set_func_free" /> 12 <link rel="next" href="db_env_set_func_ftruncate.html" title="db_env_set_func_ftruncate" /> 13 </head> 14 <body> 15 <div class="navheader"> 16 <table width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">db_env_set_func_fsync</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="db_env_set_func_free.html">Prev</a> </td> 22 <th width="60%" align="center">Appendix 3. 23 Berkeley DB Application Space Static Functions 24 </th> 25 <td width="20%" align="right"> <a accesskey="n" href="db_env_set_func_ftruncate.html">Next</a></td> 26 </tr> 27 </table> 28 <hr /> 29 </div> 30 <div class="sect1" lang="en" xml:lang="en"> 31 <div class="titlepage"> 32 <div> 33 <div> 34 <h2 class="title" style="clear: both"><a id="db_env_set_func_fsync"></a>db_env_set_func_fsync</h2> 35 </div> 36 </div> 37 </div> 38 <pre class="programlisting">#include <db.h> 39 40int 41db_env_set_func_fsync(int (*func_fsync)(int fd)); </pre> 42 <p> 43 Replace Berkeley DB calls to the IEEE/ANSI Std 1003.1 (POSIX) 44 <span class="bold"><strong>fsync</strong></span> function with <span class="bold"><strong>func_fsync</strong></span>, which must conform to the standard 45 interface specification. 46 </p> 47 <p> 48 The <code class="function">db_env_set_func_fsync()</code> function configures all operations performed 49 by a process and all of its threads of control, not operations 50 confined to a single database environment. 51 </p> 52 <p> 53 Although the <code class="function">db_env_set_func_fsync()</code> function may be called at any time 54 during the life of the application, it should normally be called 55 before making calls to the <a class="xref" href="envcreate.html" title="db_env_create">db_env_create</a> or 56 <a class="xref" href="dbcreate.html" title="db_create">db_create</a> methods. 57 </p> 58 <p> 59 The <code class="function">db_env_set_func_fsync</code> <span> 60 function returns a non-zero error value on failure and 0 on success. 61 </span> 62 </p> 63 <div class="sect2" lang="en" xml:lang="en"> 64 <div class="titlepage"> 65 <div> 66 <div> 67 <h3 class="title"><a id="id1719199"></a>Parameters</h3> 68 </div> 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="id1719431"></a>func_fsync</h4> 76 </div> 77 </div> 78 </div> 79 <p> 80 The <span class="bold"><strong>func_fsync</strong></span> parameter is the 81 replacement function. It must conform to the standard interface 82 specification. 83 </p> 84 </div> 85 </div> 86 <div class="sect2" lang="en" xml:lang="en"> 87 <div class="titlepage"> 88 <div> 89 <div> 90 <h3 class="title"><a id="id1719624"></a>See Also</h3> 91 </div> 92 </div> 93 </div> 94 <p> 95 <a href="../../programmer_reference/program_runtime.html" class="olink">Run-time configuration</a> 96 97 </p> 98 </div> 99 </div> 100 <div class="navfooter"> 101 <hr /> 102 <table width="100%" summary="Navigation footer"> 103 <tr> 104 <td width="40%" align="left"><a accesskey="p" href="db_env_set_func_free.html">Prev</a> </td> 105 <td width="20%" align="center"> 106 <a accesskey="u" href="setfunc.html">Up</a> 107 </td> 108 <td width="40%" align="right"> <a accesskey="n" href="db_env_set_func_ftruncate.html">Next</a></td> 109 </tr> 110 <tr> 111 <td width="40%" align="left" valign="top">db_env_set_func_free </td> 112 <td width="20%" align="center"> 113 <a accesskey="h" href="index.html">Home</a> 114 </td> 115 <td width="40%" align="right" valign="top"> db_env_set_func_ftruncate</td> 116 </tr> 117 </table> 118 </div> 119 </body> 120</html> 121