SSL_CTX_FLUSH_SESSION... BSD Library Functions Manual SSL_CTX_FLUSH_SESSION...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);
DESCRIPTIONSSL_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 estab‐
lished 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 call‐
ing SSL_CTX_flush_sessions().
The parameter tm specifies the time which should be used for the expira‐
tion 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 VALUESSEE ALSOssl(3), SSL_CTX_sess_set_get_cb(3), SSL_CTX_set_session_cache_mode(3),
SSL_CTX_set_timeout(3)BSD April 20, 2024 BSD
