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HTML
115 lines
5.4 KiB
HTML
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>Repmgr Message Channels</title>
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<link rel="stylesheet" href="gettingStarted.css" type="text/css" />
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<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
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<link rel="start" href="index.html" title="Berkeley DB Installation and Build Guide" />
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<link rel="up" href="upgrade_52_toc.html" title="Chapter 9. Upgrading Berkeley DB 11.2.5.1 applications to Berkeley DB 11.2.5.2" />
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<link rel="prev" href="upgrade_11gr2_52_rep_sql.html" title="Enabling Replication in the SQL Layer" />
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<link rel="next" href="upgrade_11gr2_52_seq_sql.html" title="Sequence Support in the SQL Layer" />
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</head>
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<body>
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<div xmlns="" class="navheader">
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<div class="libver">
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<p>Library Version 11.2.5.2</p>
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</div>
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">Repmgr Message Channels </th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="upgrade_11gr2_52_rep_sql.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 9.
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Upgrading Berkeley DB 11.2.5.1 applications to Berkeley DB 11.2.5.2
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</th>
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<td width="20%" align="right"> <a accesskey="n" href="upgrade_11gr2_52_seq_sql.html">Next</a></td>
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</tr>
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</table>
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<hr />
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</div>
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<div class="sect1" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title" style="clear: both"><a id="upgrade_11gr2_52_repmgr_channels"></a>Repmgr Message Channels </h2>
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</div>
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</div>
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</div>
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<div class="toc">
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<dl>
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<dt>
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<span class="sect2">
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<a href="upgrade_11gr2_52_repmgr_channels.html#id3646777">New Functions</a>
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</span>
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</dt>
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</dl>
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</div>
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<p>
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Application components running at various sites within a
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replication group can now use the Replication Manager's existing
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TCP/IP communications infrastructure to send and process messages
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among themselves, using the <code class="literal">DB_CHANNEL</code> handle.
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<a href="../api_reference/C/repmgr_channel.html" class="olink">DB_ENV->repmgr_channel()</a> is used to create the
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<code class="literal">DB_CHANNEL</code> handle. <a href="../api_reference/C/dbchannel_send_msg.html" class="olink">DB_CHANNEL->send_msg()</a> and
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<a href="../api_reference/C/dbchannel_send_request.html" class="olink">DB_CHANNEL->send_request()</a> are used to send sychronous and
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asychronous messages that are handled by the function set by
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<a href="../api_reference/C/repmgr_msg_dispatch.html" class="olink">DB_ENV->repmgr_msg_dispatch()</a>. <a href="../api_reference/C/dbchannel_set_timeout.html" class="olink">DB_CHANNEL->set_timeout()</a> is used to
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configure channel time out, and <a href="../api_reference/C/dbchannel_close.html" class="olink">DB_CHANNEL->close()</a> closes the
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channel and frees resources held by it.
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</p>
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<div class="sect2" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h3 class="title"><a id="id3646777"></a>New Functions</h3>
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</div>
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</div>
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</div>
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<div class="itemizedlist">
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<ul type="disc">
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<li>
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<a href="../api_reference/C/repmgr_msg_dispatch.html" class="olink">DB_ENV->repmgr_msg_dispatch()</a>
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</li>
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<li>
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<a href="../api_reference/C/repmgr_channel.html" class="olink">DB_ENV->repmgr_channel()</a>
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</li>
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<li>
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<a href="../api_reference/C/dbchannel_send_msg.html" class="olink">DB_CHANNEL->send_msg()</a>
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</li>
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<li>
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<a href="../api_reference/C/dbchannel_send_request.html" class="olink">DB_CHANNEL->send_request()</a>
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</li>
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<li>
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<a href="../api_reference/C/dbchannel_set_timeout.html" class="olink">DB_CHANNEL->set_timeout()</a>
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</li>
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<li>
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<a href="../api_reference/C/dbchannel_close.html" class="olink">DB_CHANNEL->close()</a>
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</li>
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</ul>
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</div>
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</div>
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</div>
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<div class="navfooter">
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<hr />
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<table width="100%" summary="Navigation footer">
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<tr>
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<td width="40%" align="left"><a accesskey="p" href="upgrade_11gr2_52_rep_sql.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="upgrade_52_toc.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="upgrade_11gr2_52_seq_sql.html">Next</a></td>
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</tr>
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<tr>
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<td width="40%" align="left" valign="top">Enabling Replication in the SQL Layer </td>
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<td width="20%" align="center">
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<a accesskey="h" href="index.html">Home</a>
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</td>
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<td width="40%" align="right" valign="top"> Sequence Support in the SQL Layer</td>
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</tr>
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</table>
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</div>
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</body>
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</html>
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