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6<title>Berkeley DB: DbEnv::memp_fcreate</title>
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13<b>DbEnv::memp_fcreate</b>
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21<b><pre>
22#include &lt;db_cxx.h&gt;
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>
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