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61 lines
2.6 KiB
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61 lines
2.6 KiB
HTML
<!--$Id: memp_trickle.so,v 10.21 2000/03/01 21:41:30 bostic Exp $-->
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<!--Copyright 1997, 1998, 1999, 2000 by Sleepycat Software, Inc.-->
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<!--All rights reserved.-->
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<html>
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<head>
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<title>Berkeley DB: DbEnv.memp_trickle</title>
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<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit.">
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<meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,java,C,C++">
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</head>
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<body bgcolor=white>
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<a name="2"><!--meow--></a>
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<table><tr valign=top>
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<td>
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<h1>DbEnv.memp_trickle</h1>
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</td>
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<td width="1%">
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<a href="../api_java/java_index.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a>
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</td></tr></table>
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<hr size=1 noshade>
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<tt>
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<h3><pre>
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import com.sleepycat.db.*;
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<p>
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public int memp_trickle(int pct)
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throws DbException;
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</pre></h3>
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<h1>Description</h1>
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<p>The DbEnv.memp_trickle method ensures that at least <b>pct</b> percent of
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the pages in the shared memory pool are clean by writing dirty pages to
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their backing files.
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The number of pages that were written to reach the correct percentage is
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returned.
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<p>The purpose of the DbEnv.memp_trickle function is to enable a memory
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pool manager to ensure that a page is always available for reading in new
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information without having to wait for a write.
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<p>The DbEnv.memp_trickle method throws an exception that encapsulates a non-zero error value on
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failure.
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<h1>Errors</h1>
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<p>The DbEnv.memp_trickle method may fail and throw an exception encapsulating a non-zero error for the following conditions:
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<p><dl compact>
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<p><dt>EINVAL<dd>An invalid flag value or parameter was specified.
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</dl>
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<p>The DbEnv.memp_trickle method may fail and throw an exception for errors specified for other Berkeley DB and C library or system methods.
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If a catastrophic error has occurred, the DbEnv.memp_trickle method may fail and throw
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a <a href="../api_java/runrec_class.html">DbRunRecoveryException</a>, in which case all subsequent Berkeley DB calls
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will fail in the same way.
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<h3>Class</h3>
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<a href="../api_java/dbenv_class.html">DbEnv</a>
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<h1>See Also</h1>
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<a href="../api_java/memp_stat.html">DbEnv.memp_fstat</a>,
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<a href="../api_java/memp_stat.html">DbEnv.memp_stat</a>
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and
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<a href="../api_java/memp_trickle.html">DbEnv.memp_trickle</a>.
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</tt>
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<table><tr><td><br></td><td width="1%">
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<a href="../api_java/java_index.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a>
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</td></tr></table>
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<p><font size=1><a href="http://www.sleepycat.com">Copyright Sleepycat Software</a></font>
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</body>
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</html>
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