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6c0117168e
The number of stick-counter entries usable by track-sc rules is currently set at build time. There is no good value for this since the vast majority of users don't need any, most need only a few and rare users need more. Adding more counters for everyone increases memory and CPU usages for no reason. This patch moves the per-session and per-stream arrays to a pool of a size defined at boot time. This way it becomes possible to set the number of entries at boot time via a new global setting "tune.stick-counters" that sets the limit for the whole process. When not set, the MAX_SESS_STR_CTR value still applies, or 3 if not set, as before. It is also possible to lower the value to 0 to save a bit of memory if not used at all. Note that a few low-level sample-fetch functions had to be protected due to the ability to use sample-fetches in the global section to set some variables.
79 lines
2.9 KiB
C
79 lines
2.9 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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struct timeval tv_accept; /* 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 srv_list; /* List of servers and the connections the session is currently responsible for */
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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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struct sess_srv_list {
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void *target;
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struct list conn_list; /* Head of the connections list */
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struct list srv_list; /* Next element of the server list */
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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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