1 /*
2 * include/proto/session.h
3 * This file defines everything related to sessions.
4 *
5 * Copyright (C) 2000-2015 Willy Tarreau - w@1wt.eu
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation, version 2.1
10 * exclusively.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #ifndef _PROTO_SESSION_H
23 #define _PROTO_SESSION_H
24
25 #include <common/config.h>
26 #include <common/buffer.h>
27 #include <common/debug.h>
28 #include <common/memory.h>
29
30 #include <types/global.h>
31 #include <types/session.h>
32
33 #include <proto/stick_table.h>
34
35 extern struct pool_head *pool_head_session;
36 struct session *session_new(struct proxy *fe, struct listener *li, enum obj_type *origin);
37 void session_free(struct session *sess);
38 int init_session();
39 int session_accept_fd(struct listener *l, int cfd, struct sockaddr_storage *addr);
40
41 /* Remove the refcount from the session to the tracked counters, and clear the
42 * pointer to ensure this is only performed once. The caller is responsible for
43 * ensuring that the pointer is valid first.
44 */
session_store_counters(struct session * sess)45 static inline void session_store_counters(struct session *sess)
46 {
47 void *ptr;
48 int i;
49 struct stksess *ts;
50
51 for (i = 0; i < MAX_SESS_STKCTR; i++) {
52 struct stkctr *stkctr = &sess->stkctr[i];
53
54 ts = stkctr_entry(stkctr);
55 if (!ts)
56 continue;
57
58 ptr = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_CONN_CUR);
59 if (ptr) {
60 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
61
62 if (stktable_data_cast(ptr, conn_cur) > 0)
63 stktable_data_cast(ptr, conn_cur)--;
64
65 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
66
67 /* If data was modified, we need to touch to re-schedule sync */
68 stktable_touch_local(stkctr->table, ts, 0);
69 }
70
71 stkctr_set_entry(stkctr, NULL);
72 stksess_kill_if_expired(stkctr->table, ts, 1);
73 }
74 }
75
76
77 #endif /* _PROTO_SESSION_H */
78
79 /*
80 * Local variables:
81 * c-indent-level: 8
82 * c-basic-offset: 8
83 * End:
84 */
85