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<b>db_env_set_func_dirfree</b>
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<b><pre>
#include &lt;db.h&gt;
<p>
int
db_env_set_func_dirfree(void (*func_dirfree)(char **namesp, int cnt));
</pre></b>
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<b>Description: db_env_set_func_dirfree</b>
<p>The Berkeley DB library requires the ability to return any memory allocated as part
of the routine which reads through a directory and creates a list of files
that the directory contains (see <a href="../api_c/set_func_dirlist.html">db_env_set_func_dirlist</a>).</p>
<p>The db_env_set_func_dirfree method configures all operations performed by a process and
all of its threads of control, not operations confined to a single
database environment.</p>
<p>Although the db_env_set_func_dirfree method may be called at any time during the life of
the application, it should normally be called before making calls to the
<a href="../api_c/env_class.html">db_env_create</a> or <a href="../api_c/db_class.html">db_create</a> methods.</p>
<p>The db_env_set_func_dirfree method
returns a non-zero error value on failure
and 0 on success.
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<b>Parameters</b> <br>
 <b>func_dirfree</b><ul compact><li>The <b>func_dirfree</b> parameter is a function which frees the memory
returned from the <a href="../api_c/set_func_dirlist.html">db_env_set_func_dirlist</a> function.
<p>The <b>namesp</b> and <b>cnt</b> parameters to this function are the
same values as were returned by the <a href="../api_c/set_func_dirlist.html">db_env_set_func_dirlist</a>
function.</p></ul>
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<br><b>See Also</b>
<a href="../ref/program/runtime.html">Run-time configuration</a>
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