62 lines
2.7 KiB
HTML
62 lines
2.7 KiB
HTML
<!--$Id: set_func_dirlist.html 63573 2008-05-23 21:43:21Z trent.nelson $-->
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<!--Copyright (c) 1997,2008 Oracle. All rights reserved.-->
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<!--See the file LICENSE for redistribution information.-->
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<html>
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<head>
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<title>Berkeley DB: db_env_set_func_dirlist</title>
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<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit.">
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<meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++">
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</head>
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<body bgcolor=white>
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<table width="100%"><tr valign=top>
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<td>
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<b>db_env_set_func_dirlist</b>
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</td>
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<td align=right>
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<a href="../api_c/api_core.html"><img src="../images/api.gif" alt="API"></a>
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<a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a></td>
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</tr></table>
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<hr size=1 noshade>
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<tt>
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<b><pre>
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#include <db.h>
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<p>
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int
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db_env_set_func_dirlist(int (*func_dirlist)(const char *dir, char ***namesp, int *cntp));
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</pre></b>
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<hr size=1 noshade>
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<b>Description: db_env_set_func_dirlist</b>
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<p>The Berkeley DB library requires the ability to read through a directory and
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create a list of files that the directory contains.</p>
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<p>The db_env_set_func_dirlist method configures all operations performed by a process and
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all of its threads of control, not operations confined to a single
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database environment.</p>
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<p>Although the db_env_set_func_dirlist method may be called at any time during the life of
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the application, it should normally be called before making calls to the
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<a href="../api_c/env_class.html">db_env_create</a> or <a href="../api_c/db_class.html">db_create</a> methods.</p>
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<p>The db_env_set_func_dirlist method
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returns a non-zero error value on failure
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and 0 on success.
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</p>
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<b>Parameters</b> <br>
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<b>func_dirlist</b><ul compact><li>The <b>func_dirlist</b> parameter is the function which reads through
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a directory and returns a list of the files it contains.
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<p>The <b>dir</b> parameter to this function is the name of the directory
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to be searched.</p>
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<p>The function must return a pointer to an array of nul-terminated file
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names into the memory location to which the <b>namesp</b> parameter
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refers, and a count of the number of elements in the array into the
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memory location to which <b>cntp</b> refers.</p></ul>
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<p>The <b>func_dirlist</b> function must return the value of <b>errno</b> on
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failure and 0 on success.</p>
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<br>
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<br><b>See Also</b>
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<a href="../ref/program/runtime.html">Run-time configuration</a>
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</tt>
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<table width="100%"><tr><td><br></td><td align=right>
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<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>
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</td></tr></table>
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<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font>
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</body>
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</html>
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