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67 lines
2.0 KiB
Plaintext
67 lines
2.0 KiB
Plaintext
=pod
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=head1 NAME
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SSL_CTX_flush_sessions_ex, SSL_CTX_flush_sessions - remove expired sessions
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=head1 SYNOPSIS
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#include <openssl/ssl.h>
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void SSL_CTX_flush_sessions_ex(SSL_CTX *ctx, time_t tm);
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The following functions have been deprecated since OpenSSL 3.4, and can be
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hidden entirely by defining B<OPENSSL_API_COMPAT> with a suitable version value,
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see L<openssl_user_macros(7)>:
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void SSL_CTX_flush_sessions(SSL_CTX *ctx, long tm);
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=head1 DESCRIPTION
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SSL_CTX_flush_sessions_ex() causes a run through the session cache of
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B<ctx> to remove sessions expired at time B<tm>.
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SSL_CTX_flush_sessions() is an older variant of the function that is not
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Y2038 safe due to usage of long datatype instead of time_t.
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=head1 NOTES
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If enabled, the internal session cache will collect all sessions established
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up to the specified maximum number (see SSL_CTX_sess_set_cache_size()).
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As sessions will not be reused ones they are expired, they should be
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removed from the cache to save resources. This can either be done
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automatically whenever 255 new sessions were established (see
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L<SSL_CTX_set_session_cache_mode(3)>)
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or manually by calling SSL_CTX_flush_sessions_ex().
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The parameter B<tm> specifies the time which should be used for the
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expiration test, in most cases the actual time given by time(0)
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will be used.
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SSL_CTX_flush_sessions_ex() will only check sessions stored in the internal
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cache. When a session is found and removed, the remove_session_cb is however
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called to synchronize with the external cache (see
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L<SSL_CTX_sess_set_get_cb(3)>).
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=head1 RETURN VALUES
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SSL_CTX_flush_sessions_ex() does not return a value.
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=head1 SEE ALSO
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L<ssl(7)>,
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L<SSL_CTX_set_session_cache_mode(3)>,
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L<SSL_CTX_set_timeout(3)>,
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L<SSL_CTX_sess_set_get_cb(3)>
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=head1 COPYRIGHT
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Copyright 2001-2024 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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