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<title>OpenSLP Programmers Guide - SLPClose</title>
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<h2>SLPClose<br />
<span id="breadcrumbs"><a href="index.html">OpenSLP Programmer's Guide</a> » SLP Handle Functions » <a href="SLPClose.html">SLPClose</a></span></h2>
<h3>Declaration</h3>
<pre>#include <slp.h>
<a href="SLPTypes.html#SLPEXP">SLPEXP</a> void <a href="SLPTypes.html#SLPAPI">SLPAPI</a> SLPClose(
<a href="SLPTypes.html#SLPHandle">SLPHandle</a> <a href="#hslp">hslp</a>);
</pre>
<h3>Description</h3>
<p>Frees all resources associated with the handle. If the
handle was invalid, the functions returns silently. Any
outstanding synchronous or asynchronous operations are
canceled so their callback functions will not be called any
longer.</p>
<p>In the OpenSLP implementation, SLPHandles are used to cache information that
is costly to obtain (in terms of network usage and time). Since the
RFC 2614 API does not provide function calls to for library initialization,
OpenSLP keeps track of the number of SLPHandles that are open.
Several global library data structures are initialized when the first SLPHandle
is opened and maintained until the last SLPHandle is closed. Therefore, it
is most efficient to leave SLPHandles open for as long as you will need them
(often for the entire life of a process). If you can help it,
DO NOT make a habit of opening and closing SLPHandles frequently.</p>
<h3>Parameters</h3>
<table>
<tbody>
<tr >
<td><a name="hslp"></a>hslp</td>
<td>An open <tt>SLPHandle</tt> that was returned by
<tt><a href="SLPOpen.html">SLPOpen()</a></tt></td>
</tr>
</tbody>
</table>
<h3>Returns</h3>
<p>None</p>
<h3>Status</h3>
<table>
<tbody>
<tr>
<td>OpenSLP 0.6.0</td>
<td>Fully implemented as specified by RFC 2614</td>
</tr>
</tbody>
</table>
<br />
<h3>
See Also</h3>
<p><tt><a href="SLPOpen.html">SLPOpen</a></tt></p>
<p id="breadcrumbs0">Prepared by: <a href="http://www.calderasystems.com">Caldera Systems Inc</a><br />
Maintained by: <a href="http://www.openslp.org/">openslp.org</a></p>
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