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