mirror of
https://github.com/MariaDB/server.git
synced 2025-11-09 11:41:36 +03:00
63 lines
3.0 KiB
HTML
63 lines
3.0 KiB
HTML
<!--$Id: mempfile_class.so,v 10.10 1999/12/20 08:52:33 bostic Exp $-->
|
|
<!--Copyright 1997, 1998, 1999, 2000 by Sleepycat Software, Inc.-->
|
|
<!--All rights reserved.-->
|
|
<html>
|
|
<head>
|
|
<title>Berkeley DB: DbMpoolFile</title>
|
|
<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit.">
|
|
<meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,java,C,C++">
|
|
</head>
|
|
<body bgcolor=white>
|
|
<a name="2"><!--meow--></a>
|
|
<table><tr valign=top>
|
|
<td>
|
|
<h1>DbMpoolFile</h1>
|
|
</td>
|
|
<td width="1%">
|
|
<a href="../api_cxx/cxx_index.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a>
|
|
</td></tr></table>
|
|
<hr size=1 noshade>
|
|
<tt>
|
|
<h3><pre>
|
|
#include <db_cxx.h>
|
|
<p>
|
|
class DbMpoolFile { ... };
|
|
</pre></h3>
|
|
<h1>Description</h1>
|
|
<p>This manual page describes the specific details of the DbMpoolFile
|
|
class.
|
|
<p>The <a href="../api_cxx/dbenv_class.html">DbEnv</a> memory pool methods and the DbMpoolFile class
|
|
are the library interface that provide general-purpose, page-oriented
|
|
buffer management of one or more files. While designed to work with the
|
|
other Db classes, they are also useful for more general purposes.
|
|
The memory pools are referred to in this document as simply <i>pools</i>.
|
|
<p>Pools may be shared between processes. Pools are usually filled by pages
|
|
from one or more files. Pages in the pool are replaced in LRU
|
|
(least-recently-used) order, with each new page replacing the page that
|
|
has been unused the longest. Pages retrieved from the pool using
|
|
<a href="../api_cxx/memp_fget.html">DbMpoolFile::get</a> are <i>pinned</i> in the pool until they are
|
|
returned to the control of the buffer pool using the <a href="../api_cxx/memp_fput.html">DbMpoolFile::put</a>
|
|
method.
|
|
<h3>Classes</h3>
|
|
<a href="../api_cxx/dbenv_class.html">DbEnv</a>, <a href="../api_cxx/mempfile_class.html">DbMpoolFile</a>
|
|
<h1>See Also</h1>
|
|
<a href="../api_cxx/env_set_mp_mmapsize.html">DbEnv::set_mp_mmapsize</a>,
|
|
<a href="../api_cxx/memp_fclose.html">DbMpoolFile::close</a>,
|
|
<a href="../api_cxx/memp_fget.html">DbMpoolFile::get</a>,
|
|
<a href="../api_cxx/memp_fopen.html">DbMpoolFile::open</a>,
|
|
<a href="../api_cxx/memp_fput.html">DbMpoolFile::put</a>,
|
|
<a href="../api_cxx/memp_fset.html">DbMpoolFile::set</a>,
|
|
<a href="../api_cxx/memp_fsync.html">DbMpoolFile::sync</a>,
|
|
<a href="../api_cxx/memp_register.html">DbEnv::memp_register</a>,
|
|
<a href="../api_cxx/memp_stat.html">DbEnv::memp_stat</a>,
|
|
<a href="../api_cxx/memp_sync.html">DbEnv::memp_sync</a>
|
|
and
|
|
<a href="../api_cxx/memp_trickle.html">DbEnv::memp_trickle</a>.
|
|
</tt>
|
|
<table><tr><td><br></td><td width="1%">
|
|
<a href="../api_cxx/cxx_index.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a>
|
|
</td></tr></table>
|
|
<p><font size=1><a href="http://www.sleepycat.com">Copyright Sleepycat Software</a></font>
|
|
</body>
|
|
</html>
|