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<H2><A NAME="SECTION00074000000000000000">
Database reloading</A>
</H2>
    The most important thing is to keep the internal instance of the database
    up to date. You can watch database changes with the <code>cl_stat</code>
    family of functions.
    <PRE>
	int cl_statinidir(const char *dirname, struct cl_stat *dbstat);
	int cl_statchkdir(const struct cl_stat *dbstat);
	int cl_statfree(struct cl_stat *dbstat);
</PRE>
    Initialization:
    <PRE>
	    ...
	    struct cl_stat dbstat;

	memset(&amp;dbstat, 0, sizeof(struct cl_stat));
	cl_statinidir(dbdir, &amp;dbstat);
</PRE>
    To check for a change you just need to call <code>cl_statchkdir</code> and check
    its return value (0 - no change, 1 - some change occured):
    <PRE>
	if(cl_statchkdir(&amp;dbstat) == 1) {
	    reload_database...;
	    cl_statfree(&amp;dbstat);
	    cl_statinidir(cl_retdbdir(), &amp;dbstat);
	}
</PRE>
    Remember to reset the <code>cl_stat</code> structure after reload.

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<!--Table of Child-Links-->
<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A>

<UL CLASS="ChildLinks">
<LI><A NAME="tex2html773"
  HREF="node45.html">Data scan functions</A>
<LI><A NAME="tex2html774"
  HREF="node46.html">Memory</A>
<LI><A NAME="tex2html775"
  HREF="node47.html">Forking daemons</A>
<LI><A NAME="tex2html776"
  HREF="node48.html">clamav-config</A>
<LI><A NAME="tex2html777"
  HREF="node49.html">Example</A>
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<ADDRESS>
Tomasz Kojm
2008-10-30
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