1<!--$Id: set_func_dirfree.so,v 10.19 2004/08/13 03:39:02 bostic Exp $--> 2<!--Copyright (c) 1997,2008 Oracle. All rights reserved.--> 3<!--See the file LICENSE for redistribution information.--> 4<html> 5<head> 6<title>Berkeley DB: db_env_set_func_dirfree</title> 7<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> 8<meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> 9</head> 10<body bgcolor=white> 11<table width="100%"><tr valign=top> 12<td> 13<b>db_env_set_func_dirfree</b> 14</td> 15<td align=right> 16<a href="/api_c/api_core.html"><img src="/images/api.gif" alt="API"></a> 17<a href="/ref/toc.html"><img src="/images/ref.gif" alt="Ref"></a></td> 18</tr></table> 19<hr size=1 noshade> 20<tt> 21<b><pre> 22#include <db.h> 23<p> 24int 25db_env_set_func_dirfree(void (*func_dirfree)(char **namesp, int cnt)); 26</pre></b> 27<hr size=1 noshade> 28<b>Description: db_env_set_func_dirfree</b> 29<p>The Berkeley DB library requires the ability to return any memory allocated as part 30of the routine which reads through a directory and creates a list of files 31that the directory contains (see <a href="/api_c/set_func_dirlist.html">db_env_set_func_dirlist</a>).</p> 32<p>The db_env_set_func_dirfree method configures all operations performed by a process and 33all of its threads of control, not operations confined to a single 34database environment.</p> 35<p>Although the db_env_set_func_dirfree method may be called at any time during the life of 36the application, it should normally be called before making calls to the 37<a href="/api_c/env_class.html">db_env_create</a> or <a href="/api_c/db_class.html">db_create</a> methods.</p> 38<p>The db_env_set_func_dirfree method 39returns a non-zero error value on failure 40and 0 on success. 41</p> 42<b>Parameters</b> <br> 43 <b>func_dirfree</b><ul compact><li>The <b>func_dirfree</b> parameter is a function which frees the memory 44returned from the <a href="/api_c/set_func_dirlist.html">db_env_set_func_dirlist</a> function. 45<p>The <b>namesp</b> and <b>cnt</b> parameters to this function are the 46same values as were returned by the <a href="/api_c/set_func_dirlist.html">db_env_set_func_dirlist</a> 47function.</p></ul> 48<br> 49<br><b>See Also</b> 50<a href="/ref/program/runtime.html">Run-time configuration</a> 51</tt> 52<table width="100%"><tr><td><br></td><td align=right> 53<a href="/api_c/api_core.html"><img src="/images/api.gif" alt="API"></a><a href="/ref/toc.html"><img src="/images/ref.gif" alt="Ref"></a> 54</td></tr></table> 55<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> 56</body> 57</html> 58