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126 .IX Title "SSL_CTX_sess_set_cache_size 3"
127 .TH SSL_CTX_sess_set_cache_size 3 "2011-02-08" "1.0.0d" "OpenSSL"
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133 SSL_CTX_sess_set_cache_size, SSL_CTX_sess_get_cache_size \- manipulate session cache size
135 .IX Header "SYNOPSIS"
137 \& #include <openssl/ssl.h>
139 \& long SSL_CTX_sess_set_cache_size(SSL_CTX *ctx, long t);
140 \& long SSL_CTX_sess_get_cache_size(SSL_CTX *ctx);
143 .IX Header "DESCRIPTION"
144 \&\fISSL_CTX_sess_set_cache_size()\fR sets the size of the internal session cache
145 of context \fBctx\fR to \fBt\fR.
147 \&\fISSL_CTX_sess_get_cache_size()\fR returns the currently valid session cache size.
150 The internal session cache size is \s-1SSL_SESSION_CACHE_MAX_SIZE_DEFAULT\s0,
151 currently 1024*20, so that up to 20000 sessions can be held. This size
152 can be modified using the \fISSL_CTX_sess_set_cache_size()\fR call. A special
153 case is the size 0, which is used for unlimited size.
155 When the maximum number of sessions is reached, no more new sessions are
156 added to the cache. New space may be added by calling
157 \&\fISSL_CTX_flush_sessions\fR\|(3) to remove
160 If the size of the session cache is reduced and more sessions are already
161 in the session cache, old session will be removed at the next time a
162 session shall be added. This removal is not synchronized with the
163 expiration of sessions.
165 .IX Header "RETURN VALUES"
166 \&\fISSL_CTX_sess_set_cache_size()\fR returns the previously valid size.
168 \&\fISSL_CTX_sess_get_cache_size()\fR returns the currently valid size.
170 .IX Header "SEE ALSO"
172 \&\fISSL_CTX_set_session_cache_mode\fR\|(3),
173 \&\fISSL_CTX_sess_number\fR\|(3),
174 \&\fISSL_CTX_flush_sessions\fR\|(3)