/usr/man/cat.3/SSL_flush_sessions.3

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)

1.0.2t               Last change: 2019-09-10                    1

See also SSL_CTX_flush_sessions(3)