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38285c18f4
The new "conn_cur" session counter has been added. It is automatically updated upon "track XXX" directives, and the entry is touched at the moment we increment the value so that we don't consider further counter updates as real updates, otherwise we would end up updating upon completion, which may not be desired. Probably that some other event counters (eg: HTTP requests) will have to be updated upon each event though. This counter can be matched against current session's source address using the "src_conn_cur" ACL.
96 lines
3.0 KiB
C
96 lines
3.0 KiB
C
/*
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* include/proto/session.h
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* This file defines everything related to sessions.
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*
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* Copyright (C) 2000-2010 Willy Tarreau - w@1wt.eu
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _PROTO_SESSION_H
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#define _PROTO_SESSION_H
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#include <common/config.h>
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#include <common/memory.h>
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#include <types/session.h>
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#include <proto/stick_table.h>
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extern struct pool_head *pool2_session;
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extern struct list sessions;
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int session_accept(struct listener *l, int cfd, struct sockaddr_storage *addr);
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void session_free(struct session *s);
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/* perform minimal intializations, report 0 in case of error, 1 if OK. */
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int init_session();
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void session_process_counters(struct session *s);
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void sess_change_server(struct session *sess, struct server *newsrv);
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struct task *process_session(struct task *t);
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void sess_set_term_flags(struct session *s);
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void default_srv_error(struct session *s, struct stream_interface *si);
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int parse_track_counters(char **args, int *arg,
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int section_type, struct proxy *curpx,
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struct track_ctr_prm *prm,
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struct proxy *defpx, char *err, int errlen);
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/* Remove the refcount from the session to the tracked counters, and clear the
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* pointer to ensure this is only performed once. The caller is responsible for
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* ensuring that the pointer is valid first.
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*/
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static inline void session_store_counters(struct session *s)
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{
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if (s->tracked_counters) {
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void *ptr = stktable_data_ptr(s->tracked_table, s->tracked_counters, STKTABLE_DT_CONN_CUR);
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if (ptr)
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stktable_data_cast(ptr, conn_cur)--;
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}
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s->tracked_counters->ref_cnt--;
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s->tracked_counters = NULL;
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}
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/* Enable tracking of session counters on stksess <ts>. The caller is
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* responsible for ensuring that <t> and <ts> are valid pointers and that no
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* previous tracked_counters was assigned to the session.
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*/
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static inline void session_track_counters(struct session *s, struct stktable *t, struct stksess *ts)
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{
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ts->ref_cnt++;
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s->tracked_table = t;
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s->tracked_counters = ts;
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if (ts) {
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void *ptr = stktable_data_ptr(t, ts, STKTABLE_DT_CONN_CUR);
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if (ptr)
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stktable_data_cast(ptr, conn_cur)++;
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if (tick_isset(t->expire))
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ts->expire = tick_add(now_ms, MS_TO_TICKS(t->expire));
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}
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}
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static void inline trace_term(struct session *s, unsigned int code)
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{
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s->term_trace <<= TT_BIT_SHIFT;
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s->term_trace |= code;
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}
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#endif /* _PROTO_SESSION_H */
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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