1<!--$Id: sysmem.so,v 1.4 2003/10/18 19:16:16 bostic Exp $--> 2<!--Copyright (c) 1997,2008 Oracle. All rights reserved.--> 3<!--See the file LICENSE for redistribution information.--> 4<html> 5<head> 6<title>Berkeley DB Reference Guide: Release 3.1: DB_SYSTEM_MEM</title> 7<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> 8<meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> 9</head> 10<body bgcolor=white> 11<table width="100%"><tr valign=top> 12<td><b><dl><dt>Berkeley DB Reference Guide:<dd>Upgrading Berkeley DB Applications</dl></b></td> 13<td align=right><a href="../upgrade.3.1/btstat.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../upgrade.3.1/log_register.html"><img src="../../images/next.gif" alt="Next"></a> 14</td></tr></table> 15<p align=center><b>Release 3.1: DB_SYSTEM_MEM</b></p> 16<p>Using the <a href="../../api_c/env_open.html#DB_SYSTEM_MEM">DB_SYSTEM_MEM</a> option on UNIX systems now requires the 17specification of a base system memory segment ID, using the 18<a href="../../api_c/env_set_shm_key.html">DB_ENV->set_shm_key</a> method. Any valid segment ID may be specified, for 19example, one returned by the UNIX <b>ftok</b>(3) function.</p> 20<table width="100%"><tr><td><br></td><td align=right><a href="../upgrade.3.1/btstat.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../upgrade.3.1/log_register.html"><img src="../../images/next.gif" alt="Next"></a> 21</td></tr></table> 22<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> 23</body> 24</html> 25
