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<ul>

	<li><a href="#name">NAME</a></li>
	<li><a href="#synopsis">SYNOPSIS</a></li>
	<li><a href="#description">DESCRIPTION</a></li>
	<li><a href="#notes">NOTES</a></li>
	<li><a href="#return_values">RETURN VALUES</a></li>
	<li><a href="#see_also">SEE ALSO</a></li>
	<li><a href="#copyright">COPYRIGHT</a></li>
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<h1><a name="name">NAME</a></h1>
<p>SSL_CTX_sess_set_cache_size, SSL_CTX_sess_get_cache_size - manipulate session cache size</p>
<p>
</p>
<hr />
<h1><a name="synopsis">SYNOPSIS</a></h1>
<pre>
 #include &lt;openssl/ssl.h&gt;</pre>
<pre>
 long SSL_CTX_sess_set_cache_size(SSL_CTX *ctx, long t);
 long SSL_CTX_sess_get_cache_size(SSL_CTX *ctx);</pre>
<p>
</p>
<hr />
<h1><a name="description">DESCRIPTION</a></h1>
<p><code>SSL_CTX_sess_set_cache_size()</code> sets the size of the internal session cache
of context <strong>ctx</strong> to <strong>t</strong>.
This value is a hint and not an absolute; see the notes below.</p>
<p><code>SSL_CTX_sess_get_cache_size()</code> returns the currently valid session cache size.</p>
<p>
</p>
<hr />
<h1><a name="notes">NOTES</a></h1>
<p>The internal session cache size is SSL_SESSION_CACHE_MAX_SIZE_DEFAULT,
currently 1024*20, so that up to 20000 sessions can be held. This size
can be modified using the <code>SSL_CTX_sess_set_cache_size()</code> call. A special
case is the size 0, which is used for unlimited size.</p>
<p>If adding the session makes the cache exceed its size, then unused
sessions are dropped from the end of the cache.
Cache space may also be reclaimed by calling
<em>SSL_CTX_flush_sessions(3)</em> to remove
expired sessions.</p>
<p>If the size of the session cache is reduced and more sessions are already
in the session cache, old session will be removed at the next time a
session shall be added. This removal is not synchronized with the
expiration of sessions.</p>
<p>
</p>
<hr />
<h1><a name="return_values">RETURN VALUES</a></h1>
<p><code>SSL_CTX_sess_set_cache_size()</code> returns the previously valid size.</p>
<p><code>SSL_CTX_sess_get_cache_size()</code> returns the currently valid size.</p>
<p>
</p>
<hr />
<h1><a name="see_also">SEE ALSO</a></h1>
<p><em>ssl(7)</em>,
<em>SSL_CTX_set_session_cache_mode(3)</em>,
<em>SSL_CTX_sess_number(3)</em>,
<em>SSL_CTX_flush_sessions(3)</em></p>
<p>
</p>
<hr />
<h1><a name="copyright">COPYRIGHT</a></h1>
<p>Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.</p>
<p>Licensed under the OpenSSL license (the &quot;License&quot;).  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file LICENSE in the source distribution or at
<a href="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</a>.</p>

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