<!--$Id: memp_set_flags.so,v 1.13 2003/11/08 19:17:40 bostic Exp $--> <!--Copyright 1997-2003 by Sleepycat Software, Inc.--> <!--All rights reserved.--> <!--See the file LICENSE for redistribution information.--> <html> <head> <title>Berkeley DB: DB_MPOOLFILE->set_flags</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 width="100%"><tr valign=top> <td> <h3>DB_MPOOLFILE->set_flags</h3> </td> <td align=right> <a href="../../db42-devel-4.2.52/api_c/api_index.html"><img src="../../db42-4.2.52/images/api.gif" alt="API"></a> <a href="../../db42-devel-4.2.52/ref/toc.html"><img src="../../db42-4.2.52/images/ref.gif" alt="Ref"></a> </td></tr></table> <hr size=1 noshade> <tt> <h3><pre> #include <db.h> <p> int DB_MPOOLFILE->set_flags(DB_MPOOLFILE *mpf, u_int32_t flags, int onoff) <p> int DB_MPOOLFILE->get_flags(DB_MPOOLFILE *mpf, u_int32_t *flagsp); </pre></h3> <hr size=1 noshade> <h3>Description: DB_MPOOLFILE->set_flags</h3> <a name="3"><!--meow--></a> <p>Configure a file in the cache.</p> <p>To set the flags for a particular database, call the DB_MPOOLFILE->set_flags method using the <a href="../../db42-devel-4.2.52/api_c/mempfile_class.html">DB_MPOOLFILE</a> handle stored in the <b>mpf</b> field of the <a href="../../db42-devel-4.2.52/api_c/db_class.html">DB</a> handle.</p> <p>The DB_MPOOLFILE->set_flags method returns a non-zero error value on failure and 0 on success. </p> <h3>Parameters</h3> <p><dl compact> <p><dt><b>flags</b><dd> The <b>flags</b> parameter must be set by bitwise inclusively <b>OR</b>'ing together one or more of the following values: <p><dl compact> <p><dt><a name="DB_MPOOL_NOFILE">DB_MPOOL_NOFILE</a><dd>If set, no backing temporary file will be opened for in-memory databases, even if they expand to fill the entire cache. Attempts to create new file pages after the cache has been filled will fail. <p>The DB_MPOOL_NOFILE flag may be used to configure Berkeley DB at any time during the life of the application.</p> </dl> <p><dt><b>onoff</b><dd> If <b>onoff</b> is zero, the specified flags are cleared; otherwise they are set. </dl> <hr size=1 noshade> <h3>Description: DB_MPOOLFILE->get_flags</h3> <p>The DB_MPOOLFILE->get_flags method returns the flags.</p> <p>The DB_MPOOLFILE->get_flags method may be called at any time during the life of the application.</p> <p>The DB_MPOOLFILE->get_flags method returns a non-zero error value on failure and 0 on success. </p> <h3>Parameters</h3> <p><dl compact> <p><dt><b>flagsp</b><dd> The DB_MPOOLFILE->get_flags method returns the flags in <b>flagsp</b>. </dl> <hr size=1 noshade> <h3>Class</h3> <a href="../../db42-devel-4.2.52/api_c/env_class.html">DB_ENV</a>, <a href="../../db42-devel-4.2.52/api_c/mempfile_class.html">DB_MPOOLFILE</a> <h3>See Also</h3> <a href="../../db42-devel-4.2.52/api_c/memp_list.html">Memory Pools and Related Methods</a> </tt> <table width="100%"><tr><td><br></td><td align=right> <a href="../../db42-devel-4.2.52/api_c/api_index.html"><img src="../../db42-4.2.52/images/api.gif" alt="API"></a><a href="../../db42-devel-4.2.52/ref/toc.html"><img src="../../db42-4.2.52/images/ref.gif" alt="Ref"></a> </td></tr></table> <p><font size=1><a href="../../db42-devel-4.2.52/sleepycat/legal.html">Copyright (c) 1996-2003</a> <a href="http://www.sleepycat.com">Sleepycat Software, Inc.</a> - All rights reserved.</font> </body> </html>
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