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0d4273f04b
This commit similar to the following one : 65ae241dcfe710e1cdd3ec4e7a9bde38d2e4c116 MEDIUM: server: close idle conn before server deletion This patch implements a similar logic, this time to close private idle connections stored in sessions. The principle is identical to the above commit : conn_release() is used on idle connections after a takeover to ensure thread safety. An extra change was required to be able to execute takeover on such connections. Their original thread ID was unknown, contrary to non private connections which are stored in sharded lists. As such, a new tid member has been added under sess_priv_conns chaining element.
87 lines
3.1 KiB
C
87 lines
3.1 KiB
C
/*
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* include/haproxy/session-t.h
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* This file defines everything related to sessions.
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*
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* Copyright (C) 2000-2020 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 _HAPROXY_SESSION_T_H
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#define _HAPROXY_SESSION_T_H
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#include <sys/time.h>
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#include <unistd.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <haproxy/api-t.h>
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#include <haproxy/obj_type-t.h>
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#include <haproxy/stick_table-t.h>
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#include <haproxy/task-t.h>
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#include <haproxy/vars-t.h>
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/* session flags */
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enum {
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SESS_FL_NONE = 0x00000000, /* nothing */
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SESS_FL_PREFER_LAST = 0x00000001, /* NTML authent, we should reuse last conn */
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};
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/* max number of idle server connections kept attached to a session */
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#define MAX_SRV_LIST 5
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struct session {
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struct proxy *fe; /* the proxy this session depends on for the client side */
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struct listener *listener; /* the listener by which the request arrived */
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enum obj_type *origin; /* the connection / applet which initiated this session */
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struct timeval accept_date; /* date of the session's accept() in user date */
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ullong accept_ts; /* date of the session's accept() in internal date (monotonic) */
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struct stkctr *stkctr; /* stick counters for tcp-connection */
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struct vars vars; /* list of variables for the session scope. */
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struct task *task; /* handshake timeout processing */
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long t_handshake; /* handshake duration, -1 = not completed */
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long t_idle; /* idle duration, -1 if never occurs */
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int idle_conns; /* Number of connections we're currently responsible for that we are not using */
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unsigned int flags; /* session flags, SESS_FL_* */
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struct list priv_conns; /* list of private conns */
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struct sockaddr_storage *src; /* source address (pool), when known, otherwise NULL */
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struct sockaddr_storage *dst; /* destination address (pool), when known, otherwise NULL */
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};
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/*
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* List of private conns managed by a session, indexed by server
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* Stored both into the session and server instances
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*/
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struct sess_priv_conns {
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void *target; /* Server or dispatch used for indexing */
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struct list conn_list; /* Head of the connections list */
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struct list sess_el; /* Element of session.priv_conns */
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struct mt_list srv_el; /* Element of server.sess_conns */
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int tid;
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};
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#endif /* _HAPROXY_SESSION_T_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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