1<!--$Id: memp_fcreate.so,v 10.12 2004/08/13 03:38:58 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: DbEnv::memp_fcreate</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> 13<b>DbEnv::memp_fcreate</b> 14</td> 15<td align=right> 16<a href="../api_cxx/api_core.html"><img src="../images/api.gif" alt="API"></a> 17<a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a></td> 18</tr></table> 19<hr size=1 noshade> 20<tt> 21<b><pre> 22#include <db_cxx.h> 23<p> 24int 25DbEnv::memp_fcreate(DbMpoolFile **dbmfp, u_int32_t flags); 26</pre></b> 27<hr size=1 noshade> 28<b>Description: DbEnv::memp_fcreate</b> 29<p>The DbEnv::memp_fcreate method creates a <a href="../api_cxx/mempfile_class.html">DbMpoolFile</a> structure that 30is the handle for a Berkeley DB shared memory buffer pool file. A pointer to 31this structure is returned in the memory to which <b>dbmfp</b> refers. 32Calling the <a href="../api_cxx/memp_fclose.html">DbMpoolFile::close</a> method will discard the returned handle.</p> 33<p>The DbEnv::memp_fcreate method 34either returns a non-zero error value 35or throws an exception that encapsulates a non-zero error value on 36failure, and returns 0 on success. 37</p> 38<b>Parameters</b> <br> 39 <b>flags</b><ul compact><li>The <b>flags</b> parameter is currently unused, and must be set to 0.</ul> 40<br> 41<hr size=1 noshade> 42<br><b>Class</b> 43<a href="../api_cxx/env_class.html">DbEnv</a>, <a href="../api_cxx/mempfile_class.html">DbMpoolFile</a> 44<br><b>See Also</b> 45<a href="../api_cxx/memp_list.html">Memory Pools and Related Methods</a> 46</tt> 47<table width="100%"><tr><td><br></td><td align=right> 48<a href="../api_cxx/api_core.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a> 49</td></tr></table> 50<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> 51</body> 52</html> 53