2011-09-13 17:44:24 +00:00
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<title>DB->get_pagesize()</title>
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<link rel="start" href="index.html" title="Berkeley DB C API Reference" />
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<link rel="up" href="db.html" title="Chapter 2. The DB Handle" />
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<link rel="prev" href="dbget_partition_keys.html" title="DB->get_partition_keys()" />
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<link rel="next" href="dbget_priority.html" title="DB->get_priority()" />
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<div class="libver">
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2012-11-14 21:35:20 +00:00
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<p>Library Version 11.2.5.3</p>
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2011-09-13 17:44:24 +00:00
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<table width="100%" summary="Navigation header">
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<th colspan="3" align="center">DB->get_pagesize()</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="dbget_partition_keys.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 2.
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The DB Handle
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</th>
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<td width="20%" align="right"> <a accesskey="n" href="dbget_priority.html">Next</a></td>
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<div class="titlepage">
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<div>
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<h2 class="title" style="clear: both"><a id="dbget_pagesize"></a>DB->get_pagesize()</h2>
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</div>
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</div>
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<pre class="programlisting">#include <db.h>
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int
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DB->get_pagesize(DB *db, u_int32_t *pagesizep); </pre>
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<p>
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The <code class="methodname">DB->get_pagesize()</code> method returns the database's current page size, as
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set by the <a class="xref" href="dbset_pagesize.html" title="DB->set_pagesize()">DB->set_pagesize()</a>
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method. Note that if <code class="methodname">DB->set_pagesize()</code> was not called by your
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application, then the default pagesize is selected based on the underlying filesystem I/O block size.
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If you call <code class="methodname">DB->get_pagesize()</code> before you have opened the
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database, the value returned by this method is therefore the underlying filesystem I/O block size.
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</p>
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<p>
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The <code class="methodname">DB->get_pagesize()</code> method may be called only after the database has been opened.
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</p>
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<p>
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The <code class="methodname">DB->get_pagesize()</code> <span>
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<span>
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method returns a non-zero error value on failure and 0 on success.
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</span>
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</span>
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</p>
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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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<h3 class="title"><a id="idp57745144"></a>Parameters</h3>
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</div>
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</div>
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</div>
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<div class="sect3" 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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<h4 class="title"><a id="idp57744496"></a>pagesizep</h4>
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2011-09-13 17:44:24 +00:00
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</div>
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</div>
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</div>
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<p>
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The <code class="methodname">DB->get_pagesize()</code> method returns the page size in <span class="bold"><strong>pagesizep</strong></span>.
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</p>
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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="idp57683224"></a>Class</h3>
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2011-09-13 17:44:24 +00:00
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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.html" title="Chapter 2. The DB Handle">DB</a>
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</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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2012-11-14 21:35:20 +00:00
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<h3 class="title"><a id="idp57744384"></a>See Also</h3>
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2011-09-13 17:44:24 +00:00
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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="xref" href="db.html#dblist" title="Database and Related Methods">Database and Related Methods</a>,
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<a class="xref" href="dbset_pagesize.html" title="DB->set_pagesize()">DB->set_pagesize()</a>
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</p>
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<td width="40%" align="left"><a accesskey="p" href="dbget_partition_keys.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="db.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="dbget_priority.html">Next</a></td>
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</tr>
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<tr>
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<td width="40%" align="left" valign="top">DB->get_partition_keys() </td>
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<td width="20%" align="center">
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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"> DB->get_priority()</td>
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</tr>
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