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<?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>51.1. Initialization Functions</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="archive-modules.html" title="第51章 Archive Modules" /><link rel="next" href="archive-module-callbacks.html" title="51.2. Archive Module Callbacks" /><meta name="viewport" content="width=device-width,initial-scale=1.0" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="4" align="center"><a accesskey="h" href="index.html">PostgreSQL 15beta3文書</a></th></tr><tr><td width="10%" align="left"></td><td width="10%" align="left"></td><td width="60%" align="center"><a href="archive-modules.html" title="第51章 Archive Modules">第51章 Archive Modules</a></td><td width="20%" align="right"></td></tr><tr><td width="10%" align="left"><a accesskey="p" href="archive-modules.html" title="第51章 Archive Modules">前へ</a> </td><td width="10%" align="left"><a accesskey="u" href="archive-modules.html" title="第51章 Archive Modules">上へ</a></td><td width="60%" align="center">51.1. Initialization Functions</td><td width="20%" align="right"> <a accesskey="n" href="archive-module-callbacks.html" title="51.2. Archive Module Callbacks">次へ</a></td></tr></table><hr /></div><div class="sect1" id="ARCHIVE-MODULE-INIT"><div class="titlepage"><div><div><h2 class="title" style="clear: both">51.1. Initialization Functions</h2></div></div></div><a id="id-1.8.16.7.2" class="indexterm"></a><p>
   An archive library is loaded by dynamically loading a shared library with the
   <a class="xref" href="runtime-config-wal.html#GUC-ARCHIVE-LIBRARY">archive_library</a>'s name as the library base name.  The
   normal library search path is used to locate the library.  To provide the
   required archive module callbacks and to indicate that the library is
   actually an archive module, it needs to provide a function named
   <code class="function">_PG_archive_module_init</code>.  This function is passed a
   struct that needs to be filled with the callback function pointers for
   individual actions.

</p><pre class="programlisting">
typedef struct ArchiveModuleCallbacks
{
    ArchiveCheckConfiguredCB check_configured_cb;
    ArchiveFileCB archive_file_cb;
    ArchiveShutdownCB shutdown_cb;
} ArchiveModuleCallbacks;
typedef void (*ArchiveModuleInit) (struct ArchiveModuleCallbacks *cb);
</pre><p>

   Only the <code class="function">archive_file_cb</code> callback is required.  The
   others are optional.
  </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="archive-modules.html" title="第51章 Archive Modules">前へ</a> </td><td width="20%" align="center"><a accesskey="u" href="archive-modules.html" title="第51章 Archive Modules">上へ</a></td><td width="40%" align="right"> <a accesskey="n" href="archive-module-callbacks.html" title="51.2. Archive Module Callbacks">次へ</a></td></tr><tr><td width="40%" align="left" valign="top">第51章 Archive Modules </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15beta3文書">ホーム</a></td><td width="40%" align="right" valign="top"> 51.2. Archive Module Callbacks</td></tr></table></div></body></html>