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https://github.com/yasuhirokimura/db18
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Yasuhiro KIMURA
88 lines
3.6 KiB
HTML
88 lines
3.6 KiB
HTML
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>is_rmw</title>
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<link rel="stylesheet" href="apiReference.css" type="text/css" />
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<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
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<link rel="start" href="index.html" title="Berkeley DB C++ Standard Template Library API Reference" />
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<link rel="up" href="db_base_iterator.html" title="Chapter 10. Db_base_iterator" />
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<link rel="prev" href="stldb_base_iteratorget_bulk_retrieval.html" title="get_bulk_retrieval" />
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<body>
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<div xmlns="" class="navheader">
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<div class="libver">
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<p>Library Version 18.1.40</p>
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</div>
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">is_rmw</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="stldb_base_iteratorget_bulk_retrieval.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 10.
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Db_base_iterator </th>
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<td width="20%" align="right"> <a accesskey="n" href="stldb_base_iteratoris_directdb_get.html">Next</a></td>
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<hr />
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<div class="sect1" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title" style="clear: both"><a id="stldb_base_iteratoris_rmw"></a>is_rmw</h2>
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</div>
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</div>
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</div>
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<div class="sect2" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h3 class="title"><a id="stldb_base_iteratoris_rmw_details"></a>Function Details</h3>
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</div>
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</div>
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</div>
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<pre class="programlisting">
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bool is_rmw() const
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</pre>
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<p>Get DB_RMW setting. </p>
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<p>Return true if the iterator's cursor has DB_RMW flag set, false otherwise. DB_RMW flag causes a write lock to be acquired when reading a key/data pair, so that the transaction won't block later when writing back the updated value in a read-modify-write operation cycle. </p>
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</div>
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<div class="sect2" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h3 class="title"><a id="idm140317942672960"></a>Class</h3>
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</div>
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</div>
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</div>
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<p>
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<a class="link" href="db_base_iterator.html" title="Chapter 10. Db_base_iterator">db_base_iterator</a>
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</p>
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<td width="40%" align="left"><a accesskey="p" href="stldb_base_iteratorget_bulk_retrieval.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="db_base_iterator.html">Up</a>
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<td width="40%" align="left" valign="top">get_bulk_retrieval </td>
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<a accesskey="h" href="index.html">Home</a>
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</td>
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<td width="40%" align="right" valign="top"> is_directdb_get</td>
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