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<title>Berkeley DB: db_env_set_func_fsync</title>
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<h3>db_env_set_func_fsync</h3>
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<h3><pre>
#include <db.h>
<p>
int
db_env_set_func_fsync(int (*func_fsync)(int fd));
</pre></h3>
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<h3>Description: db_env_set_func_fsync</h3>
<p>Replace Berkeley DB calls to the IEEE/ANSI Std 1003.1 (POSIX) <b>fsync</b> function with
<b>func_fsync</b>, which must conform to the standard interface
specification.</p>
<p>The db_env_set_func_fsync 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_fsync 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_fsync method
returns a non-zero error value on failure
and 0 on success.
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<h3>Parameters</h3>
<p><dl compact>
<p><dt><b>func_fsync</b><dd>
The <b>func_fsync</b> parameter is the replacement function. It must conform
to the standard interface specification.
</dl>
<h3>See Also</h3>
<a href="../ref/program/runtime.html">Run-time configuration</a>
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