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SSL_CTX_flush_sessions(3)                          OpenSSL                         SSL_CTX_flush_sessions(3)



NAME
       SSL_CTX_flush_sessions, SSL_flush_sessions - remove expired sessions

SYNOPSIS
        #include <openssl/ssl.h>

        void SSL_CTX_flush_sessions(SSL_CTX *ctx, long tm);
        void SSL_flush_sessions(SSL_CTX *ctx, long tm);

DESCRIPTION
       SSL_CTX_flush_sessions() causes a run through the session cache of ctx to remove sessions expired at
       time tm.

       SSL_flush_sessions() is a synonym for SSL_CTX_flush_sessions().

NOTES
       If enabled, the internal session cache will collect all sessions established up to the specified
       maximum number (see SSL_CTX_sess_set_cache_size()).  As sessions will not be reused ones they are
       expired, they should be removed from the cache to save resources. This can either be done
        automatically whenever 255 new sessions were established (see SSL_CTX_set_session_cache_mode(3)) or
       manually by calling SSL_CTX_flush_sessions().

       The parameter tm specifies the time which should be used for the expiration test, in most cases the
       actual time given by time(0) will be used.

       SSL_CTX_flush_sessions() will only check sessions stored in the internal cache. When a session is
       found and removed, the remove_session_cb is however called to synchronize with the external cache
       (see SSL_CTX_sess_set_get_cb(3)).

RETURN VALUES
SEE ALSO
       ssl(3), SSL_CTX_set_session_cache_mode(3), SSL_CTX_set_timeout(3), SSL_CTX_sess_set_get_cb(3)



50                                               2013-03-05                        SSL_CTX_flush_sessions(3)