mirror of
https://github.com/haproxy/haproxy.git
synced 2026-02-03 20:39:41 -05:00
052d4fd07d
Move counters from "struct proxy" and "struct server" to "struct pxcounters" and "struct svcounters". This patch should make no functional change.
144 lines
6.5 KiB
C
144 lines
6.5 KiB
C
/*
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include/types/server.h
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This file defines everything related to servers.
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Copyright (C) 2000-2009 Willy Tarreau - w@1wt.eu
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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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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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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 _TYPES_SERVER_H
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#define _TYPES_SERVER_H
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <common/config.h>
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#include <common/eb32tree.h>
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#include <common/mini-clist.h>
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#include <types/buffers.h>
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#include <types/counters.h>
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#include <types/freq_ctr.h>
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#include <types/port_range.h>
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#include <types/proxy.h>
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#include <types/queue.h>
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#include <types/task.h>
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#include <types/checks.h>
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/* server flags */
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#define SRV_RUNNING 0x0001 /* the server is UP */
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#define SRV_BACKUP 0x0002 /* this server is a backup server */
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#define SRV_MAPPORTS 0x0004 /* this server uses mapped ports */
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#define SRV_BIND_SRC 0x0008 /* this server uses a specific source address */
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#define SRV_CHECKED 0x0010 /* this server needs to be checked */
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#define SRV_GOINGDOWN 0x0020 /* this server says that it's going down (404) */
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#define SRV_WARMINGUP 0x0040 /* this server is warming up after a failure */
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/* unused: 0x0080 */
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#define SRV_TPROXY_ADDR 0x0100 /* bind to this non-local address to reach this server */
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#define SRV_TPROXY_CIP 0x0200 /* bind to the client's IP address to reach this server */
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#define SRV_TPROXY_CLI 0x0300 /* bind to the client's IP+port to reach this server */
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#define SRV_TPROXY_MASK 0x0300 /* bind to a non-local address to reach this server */
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/* function which act on servers need to return various errors */
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#define SRV_STATUS_OK 0 /* everything is OK. */
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#define SRV_STATUS_INTERNAL 1 /* other unrecoverable errors. */
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#define SRV_STATUS_NOSRV 2 /* no server is available */
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#define SRV_STATUS_FULL 3 /* the/all server(s) are saturated */
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#define SRV_STATUS_QUEUED 4 /* the/all server(s) are saturated but the connection was queued */
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/* bits for s->result used for health-checks */
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#define SRV_CHK_UNKNOWN 0x0000 /* initialized to this by default */
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#define SRV_CHK_ERROR 0x0001 /* error encountered during the check; has precedence */
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#define SRV_CHK_RUNNING 0x0002 /* server seen as running */
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#define SRV_CHK_DISABLE 0x0004 /* server returned a "disable" code */
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/* various constants */
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#define SRV_UWGHT_RANGE 256
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#define SRV_UWGHT_MAX (SRV_UWGHT_RANGE - 1)
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#define SRV_EWGHT_RANGE (SRV_UWGHT_RANGE * BE_WEIGHT_SCALE)
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#define SRV_EWGHT_MAX (SRV_UWGHT_MAX * BE_WEIGHT_SCALE)
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struct server {
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struct server *next;
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int state; /* server state (SRV_*) */
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int prev_state; /* server state before last change (SRV_*) */
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int cklen; /* the len of the cookie, to speed up checks */
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int rdr_len; /* the length of the redirection prefix */
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char *cookie; /* the id set in the cookie */
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char *rdr_pfx; /* the redirection prefix */
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struct proxy *proxy; /* the proxy this server belongs to */
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int served; /* # of active sessions currently being served (ie not pending) */
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int cur_sess, cur_sess_max; /* number of currently active sessions (including syn_sent) */
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unsigned maxconn, minconn; /* max # of active sessions (0 = unlimited), min# for dynamic limit. */
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int nbpend, nbpend_max; /* number of pending connections */
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int maxqueue; /* maximum number of pending connections allowed */
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struct list pendconns; /* pending connections */
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struct task *check; /* the task associated to the health check processing */
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struct sockaddr_in addr; /* the address to connect to */
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struct sockaddr_in source_addr; /* the address to which we want to bind for connect() */
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#if defined(CONFIG_HAP_CTTPROXY) || defined(CONFIG_HAP_LINUX_TPROXY)
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struct sockaddr_in tproxy_addr; /* non-local address we want to bind to for connect() */
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#endif
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int iface_len; /* bind interface name length */
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char *iface_name; /* bind interface name or NULL */
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struct port_range *sport_range; /* optional per-server TCP source ports */
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struct server *tracknext, *tracked; /* next server in a tracking list, tracked server */
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char *trackit; /* temporary variable to make assignment deferrable */
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struct sockaddr_in check_addr; /* the address to check, if different from <addr> */
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short check_port; /* the port to use for the health checks */
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int health; /* 0->rise-1 = bad; rise->rise+fall-1 = good */
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int rise, fall; /* time in iterations */
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int inter, fastinter, downinter; /* checks: time in milliseconds */
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int slowstart; /* slowstart time in seconds (ms in the conf) */
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int result; /* health-check result : SRV_CHK_* */
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int curfd; /* file desc used for current test, or -1 if not in test */
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char *id; /* just for identification */
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unsigned uweight, eweight; /* user-specified weight, and effective weight */
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unsigned wscore; /* weight score, used during srv map computation */
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unsigned prev_eweight; /* eweight before last change */
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unsigned rweight; /* remainer of weight in the current LB tree */
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unsigned npos, lpos; /* next and last positions in the LB tree */
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struct eb32_node lb_node; /* node used for tree-based load balancing */
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struct eb_root *lb_tree; /* we want to know in what tree the server is */
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struct server *next_full; /* next server in the temporary full list */
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unsigned down_time; /* total time the server was down */
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time_t last_change; /* last time, when the state was changed */
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struct timeval check_start; /* last health check start time */
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unsigned long check_duration; /* time in ms took to finish last health check */
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short check_status, check_code; /* check result, check code */
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struct freq_ctr sess_per_sec; /* sessions per second on this server */
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unsigned int sps_max; /* maximum of new sessions per second seen on this server */
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int puid; /* proxy-unique server ID, used for SNMP */
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struct srvcounters counters; /* statistics counters */
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};
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#endif /* _TYPES_SERVER_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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