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<title>db_env_set_func_dirfree</title>
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<p>Library Version 11.2.5.3</p>
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<th colspan="3" align="center">db_env_set_func_dirfree</th>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="db_env_set_func_close.html">Prev</a> </td>
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<th width="60%" align="center">Appendix C.
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Berkeley DB Application Space Static Functions
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<div class="titlepage">
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<h2 class="title" style="clear: both"><a id="db_env_set_func_dirfree"></a>db_env_set_func_dirfree</h2>
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</div>
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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_env_set_func_dirfree(void (*func_dirfree)(char **namesp, int cnt)); </pre>
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<p>
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The Berkeley DB library requires the ability to return any memory
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allocated as part of the routine which reads through a directory and
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creates a list of files that the directory contains (see
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<a class="xref" href="db_env_set_func_dirlist.html" title="db_env_set_func_dirlist">db_env_set_func_dirlist</a>).
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</p>
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<p>
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The <code class="function">db_env_set_func_dirfree()</code> function configures all operations performed
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by a process and all of its threads of control, not operations
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confined to a single database environment.
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</p>
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<p>
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Although the <code class="function">db_env_set_func_dirfree()</code> function may be called at any time
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during the life of the application, it should normally be called
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before making calls to the <a class="xref" href="envcreate.html" title="db_env_create">db_env_create</a> or
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<a class="xref" href="dbcreate.html" title="db_create">db_create</a> methods.
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</p>
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<p>
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The <code class="function">db_env_set_func_dirfree()</code> <span>
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function returns a non-zero error value on failure and 0 on success.
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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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<div>
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<h3 class="title"><a id="idp63527096"></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="idp63527288"></a>func_dirfree</h4>
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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 <span class="bold"><strong>func_dirfree</strong></span> parameter is a
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function which frees the memory returned from the
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<a class="xref" href="db_env_set_func_dirlist.html" title="db_env_set_func_dirlist">db_env_set_func_dirlist</a>
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function.
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</p>
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<p>
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The <span class="bold"><strong>namesp</strong></span> and <span class="bold"><strong>cnt</strong></span> parameters to this function are the same
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values as were returned by the
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<a class="xref" href="db_env_set_func_dirlist.html" title="db_env_set_func_dirlist">db_env_set_func_dirlist</a>
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function.
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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="idp63523960"></a>See Also</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 href="../../programmer_reference/program_runtime.html" class="olink">Run-time configuration</a>
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