include/proto/stream.h - haproxy - Gitiles

 /*
  * include/proto/stream.h
  * This file defines everything related to streams.
  *
  * Copyright (C) 2000-2010 Willy Tarreau - w@1wt.eu
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation, version 2.1
  * exclusively.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */

 #ifndef _PROTO_STREAM_H
 #define _PROTO_STREAM_H

 #include <common/config.h>
 #include <common/memory.h>
 #include <types/action.h>
 #include <types/stream.h>
 #include <proto/fd.h>
 #include <proto/freq_ctr.h>
 #include <proto/stick_table.h>
 #include <proto/task.h>

 extern struct pool_head *pool_head_stream;
 extern struct list streams;

 extern struct data_cb sess_conn_cb;

 struct stream *stream_new(struct session *sess, enum obj_type *origin);
 int stream_create_from_cs(struct conn_stream *cs);

 /* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
 void stream_shutdown(struct stream *stream, int why);

 void stream_process_counters(struct stream *s);
 void sess_change_server(struct stream *sess, struct server *newsrv);
 struct task *process_stream(struct task *t, void *context, unsigned short state);
 void default_srv_error(struct stream *s, struct stream_interface *si);
 int parse_track_counters(char **args, int *arg,
 			 int section_type, struct proxy *curpx,
 			 struct track_ctr_prm *prm,
 			 struct proxy *defpx, char **err);

 /* Update the stream's backend and server time stats */
 void stream_update_time_stats(struct stream *s);
 void stream_release_buffers(struct stream *s);
 int stream_buf_available(void *arg);

 /* returns the session this stream belongs to */
 static inline struct session *strm_sess(const struct stream *strm)
 {
 	return strm->sess;
 }

 /* returns the frontend this stream was initiated from */
 static inline struct proxy *strm_fe(const struct stream *strm)
 {
 	return strm->sess->fe;
 }

 /* returns the listener this stream was initiated from */
 static inline struct listener *strm_li(const struct stream *strm)
 {
 	return strm->sess->listener;
 }

 /* returns a pointer to the origin of the session which created this stream */
 static inline enum obj_type *strm_orig(const struct stream *strm)
 {
 	return strm->sess->origin;
 }

 /* Remove the refcount from the stream to the tracked counters, and clear the
  * pointer to ensure this is only performed once. The caller is responsible for
  * ensuring that the pointer is valid first. We must be extremely careful not
  * to touch the entries we inherited from the session.
  */
 static inline void stream_store_counters(struct stream *s)
 {
 	void *ptr;
 	int i;
 	struct stksess *ts;

 	for (i = 0; i < MAX_SESS_STKCTR; i++) {
 		ts = stkctr_entry(&s->stkctr[i]);
 		if (!ts)
 			continue;

 		if (stkctr_entry(&s->sess->stkctr[i]))
 			continue;

 		ptr = stktable_data_ptr(s->stkctr[i].table, ts, STKTABLE_DT_CONN_CUR);
 		if (ptr) {
 			HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);

 			if (stktable_data_cast(ptr, conn_cur) > 0)
 				stktable_data_cast(ptr, conn_cur)--;

 			HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);

 			/* If data was modified, we need to touch to re-schedule sync */
 			stktable_touch_local(s->stkctr[i].table, ts, 0);
 		}
 		stkctr_set_entry(&s->stkctr[i], NULL);
 		stksess_kill_if_expired(s->stkctr[i].table, ts, 1);
 	}
 }

 /* Remove the refcount from the stream counters tracked at the content level if
  * any, and clear the pointer to ensure this is only performed once. The caller
  * is responsible for ensuring that the pointer is valid first. We must be
  * extremely careful not to touch the entries we inherited from the session.
  */
 static inline void stream_stop_content_counters(struct stream *s)
 {
 	struct stksess *ts;
 	void *ptr;
 	int i;

 	for (i = 0; i < MAX_SESS_STKCTR; i++) {
 		ts = stkctr_entry(&s->stkctr[i]);
 		if (!ts)
 			continue;

 		if (stkctr_entry(&s->sess->stkctr[i]))
 			continue;

 		if (!(stkctr_flags(&s->stkctr[i]) & STKCTR_TRACK_CONTENT))
 			continue;

 		ptr = stktable_data_ptr(s->stkctr[i].table, ts, STKTABLE_DT_CONN_CUR);
 		if (ptr) {
 			HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);

 			if (stktable_data_cast(ptr, conn_cur) > 0)
 				stktable_data_cast(ptr, conn_cur)--;

 			HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);

 			/* If data was modified, we need to touch to re-schedule sync */
 			stktable_touch_local(s->stkctr[i].table, ts, 0);
 		}
 		stkctr_set_entry(&s->stkctr[i], NULL);
 		stksess_kill_if_expired(s->stkctr[i].table, ts, 1);
 	}
 }

 /* Increase total and concurrent connection count for stick entry <ts> of table
  * <t>. The caller is responsible for ensuring that <t> and <ts> are valid
  * pointers, and for calling this only once per connection.
  */
 static inline void stream_start_counters(struct stktable *t, struct stksess *ts)
 {
 	void *ptr;

 	HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);

 	ptr = stktable_data_ptr(t, ts, STKTABLE_DT_CONN_CUR);
 	if (ptr)
 		stktable_data_cast(ptr, conn_cur)++;

 	ptr = stktable_data_ptr(t, ts, STKTABLE_DT_CONN_CNT);
 	if (ptr)
 		stktable_data_cast(ptr, conn_cnt)++;

 	ptr = stktable_data_ptr(t, ts, STKTABLE_DT_CONN_RATE);
 	if (ptr)
 		update_freq_ctr_period(&stktable_data_cast(ptr, conn_rate),
 				       t->data_arg[STKTABLE_DT_CONN_RATE].u, 1);
 	if (tick_isset(t->expire))
 		ts->expire = tick_add(now_ms, MS_TO_TICKS(t->expire));

 	HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);

 	/* If data was modified, we need to touch to re-schedule sync */
 	stktable_touch_local(t, ts, 0);
 }

 /* Enable tracking of stream counters as <stkctr> on stksess <ts>. The caller is
  * responsible for ensuring that <t> and <ts> are valid pointers. Some controls
  * are performed to ensure the state can still change.
  */
 static inline void stream_track_stkctr(struct stkctr *ctr, struct stktable *t, struct stksess *ts)
 {
 	/* Why this test ???? */
 	if (stkctr_entry(ctr))
 		return;

 	ctr->table = t;
 	stkctr_set_entry(ctr, ts);
 	stream_start_counters(t, ts);
 }

 /* Increase the number of cumulated HTTP requests in the tracked counters */
 static void inline stream_inc_http_req_ctr(struct stream *s)
 {
 	struct stksess *ts;
 	void *ptr;
 	int i;

 	for (i = 0; i < MAX_SESS_STKCTR; i++) {
 		struct stkctr *stkctr = &s->stkctr[i];

 		ts = stkctr_entry(stkctr);
 		if (!ts) {
 			stkctr = &s->sess->stkctr[i];
 			ts = stkctr_entry(stkctr);
 			if (!ts)
 				continue;
 		}

 		HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);

 		ptr = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_HTTP_REQ_CNT);
 		if (ptr)
 			stktable_data_cast(ptr, http_req_cnt)++;

 		ptr = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_HTTP_REQ_RATE);
 		if (ptr)
 			update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
 					       stkctr->table->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);

 		HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);

 		/* If data was modified, we need to touch to re-schedule sync */
 		stktable_touch_local(stkctr->table, ts, 0);
 	}
 }

 /* Increase the number of cumulated HTTP requests in the backend's tracked
  * counters. We don't look up the session since it cannot happen in the bakcend.
  */
 static void inline stream_inc_be_http_req_ctr(struct stream *s)
 {
 	struct stksess *ts;
 	void *ptr;
 	int i;

 	for (i = 0; i < MAX_SESS_STKCTR; i++) {
 		struct stkctr *stkctr = &s->stkctr[i];

 		ts = stkctr_entry(stkctr);
 		if (!ts)
 			continue;

 		if (!(stkctr_flags(&s->stkctr[i]) & STKCTR_TRACK_BACKEND))
 			continue;

 		HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);

 		ptr = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_HTTP_REQ_CNT);
 		if (ptr)
 			stktable_data_cast(ptr, http_req_cnt)++;

 		ptr = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_HTTP_REQ_RATE);
 		if (ptr)
 			update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
 			                       stkctr->table->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);

 		HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);

 		/* If data was modified, we need to touch to re-schedule sync */
 		stktable_touch_local(stkctr->table, ts, 0);
 	}
 }

 /* Increase the number of cumulated failed HTTP requests in the tracked
  * counters. Only 4xx requests should be counted here so that we can
  * distinguish between errors caused by client behaviour and other ones.
  * Note that even 404 are interesting because they're generally caused by
  * vulnerability scans.
  */
 static void inline stream_inc_http_err_ctr(struct stream *s)
 {
 	struct stksess *ts;
 	void *ptr;
 	int i;

 	for (i = 0; i < MAX_SESS_STKCTR; i++) {
 		struct stkctr *stkctr = &s->stkctr[i];

 		ts = stkctr_entry(stkctr);
 		if (!ts) {
 			stkctr = &s->sess->stkctr[i];
 			ts = stkctr_entry(stkctr);
 			if (!ts)
 				continue;
 		}

 		HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);

 		ptr = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_HTTP_ERR_CNT);
 		if (ptr)
 			stktable_data_cast(ptr, http_err_cnt)++;

 		ptr = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_HTTP_ERR_RATE);
 		if (ptr)
 			update_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
 			                       stkctr->table->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u, 1);

 		HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);

 		/* If data was modified, we need to touch to re-schedule sync */
 		stktable_touch_local(stkctr->table, ts, 0);
 	}
 }

 static void inline __stream_add_srv_conn(struct stream *sess, struct server *srv)
 {
 	sess->srv_conn = srv;
 	LIST_ADD(&srv->actconns, &sess->by_srv);
 }

 static void inline stream_add_srv_conn(struct stream *sess, struct server *srv)
 {
 	HA_SPIN_LOCK(SERVER_LOCK, &srv->lock);
 	__stream_add_srv_conn(sess, srv);
 	HA_SPIN_UNLOCK(SERVER_LOCK, &srv->lock);
 }

 static void inline stream_del_srv_conn(struct stream *sess)
 {
 	struct server *srv = sess->srv_conn;

 	if (!srv)
 		return;

 	HA_SPIN_LOCK(SERVER_LOCK, &srv->lock);
 	sess->srv_conn = NULL;
 	LIST_DEL(&sess->by_srv);
 	HA_SPIN_UNLOCK(SERVER_LOCK, &srv->lock);
 }

 static void inline stream_init_srv_conn(struct stream *sess)
 {
 	sess->srv_conn = NULL;
 	LIST_INIT(&sess->by_srv);
 }

 void service_keywords_register(struct action_kw_list *kw_list);
 void list_services(FILE *out);

 #endif /* _PROTO_STREAM_H */

 /*
  * Local variables:
  *  c-indent-level: 8
  *  c-basic-offset: 8
  * End:
  */
	/*
	* include/proto/stream.h
	* This file defines everything related to streams.
	*
	* Copyright (C) 2000-2010 Willy Tarreau - w@1wt.eu
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation, version 2.1
	* exclusively.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with this library; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	*/

	#ifndef _PROTO_STREAM_H
	#define _PROTO_STREAM_H

	#include <common/config.h>
	#include <common/memory.h>
	#include <types/action.h>
	#include <types/stream.h>
	#include <proto/fd.h>
	#include <proto/freq_ctr.h>
	#include <proto/stick_table.h>
	#include <proto/task.h>

	extern struct pool_head *pool_head_stream;
	extern struct list streams;

	extern struct data_cb sess_conn_cb;

	struct stream stream_new(struct session sess, enum obj_type *origin);
	int stream_create_from_cs(struct conn_stream *cs);

	/* kill a stream and set the termination flags to <why> (one of SF_ERR_) /
	void stream_shutdown(struct stream *stream, int why);

	void stream_process_counters(struct stream *s);
	void sess_change_server(struct stream sess, struct server newsrv);
	struct task process_stream(struct task t, void *context, unsigned short state);
	void default_srv_error(struct stream s, struct stream_interface si);
	int parse_track_counters(char *args, int arg,
	int section_type, struct proxy *curpx,
	struct track_ctr_prm *prm,
	struct proxy defpx, char *err);

	/* Update the stream's backend and server time stats */
	void stream_update_time_stats(struct stream *s);
	void stream_release_buffers(struct stream *s);
	int stream_buf_available(void *arg);

	/* returns the session this stream belongs to */
	static inline struct session strm_sess(const struct stream strm)
	{
	return strm->sess;
	}

	/* returns the frontend this stream was initiated from */
	static inline struct proxy strm_fe(const struct stream strm)
	{
	return strm->sess->fe;
	}

	/* returns the listener this stream was initiated from */
	static inline struct listener strm_li(const struct stream strm)
	{
	return strm->sess->listener;
	}

	/* returns a pointer to the origin of the session which created this stream */
	static inline enum obj_type strm_orig(const struct stream strm)
	{
	return strm->sess->origin;
	}

	/* Remove the refcount from the stream to the tracked counters, and clear the
	* pointer to ensure this is only performed once. The caller is responsible for
	* ensuring that the pointer is valid first. We must be extremely careful not
	* to touch the entries we inherited from the session.
	*/
	static inline void stream_store_counters(struct stream *s)
	{
	void *ptr;
	int i;
	struct stksess *ts;

	for (i = 0; i < MAX_SESS_STKCTR; i++) {
	ts = stkctr_entry(&s->stkctr[i]);
	if (!ts)
	continue;

	if (stkctr_entry(&s->sess->stkctr[i]))
	continue;

	ptr = stktable_data_ptr(s->stkctr[i].table, ts, STKTABLE_DT_CONN_CUR);
	if (ptr) {
	HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);

	if (stktable_data_cast(ptr, conn_cur) > 0)
	stktable_data_cast(ptr, conn_cur)--;

	HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);

	/* If data was modified, we need to touch to re-schedule sync */
	stktable_touch_local(s->stkctr[i].table, ts, 0);
	}
	stkctr_set_entry(&s->stkctr[i], NULL);
	stksess_kill_if_expired(s->stkctr[i].table, ts, 1);
	}
	}

	/* Remove the refcount from the stream counters tracked at the content level if
	* any, and clear the pointer to ensure this is only performed once. The caller
	* is responsible for ensuring that the pointer is valid first. We must be
	* extremely careful not to touch the entries we inherited from the session.
	*/
	static inline void stream_stop_content_counters(struct stream *s)
	{
	struct stksess *ts;
	void *ptr;
	int i;

	for (i = 0; i < MAX_SESS_STKCTR; i++) {
	ts = stkctr_entry(&s->stkctr[i]);
	if (!ts)
	continue;

	if (stkctr_entry(&s->sess->stkctr[i]))
	continue;

	if (!(stkctr_flags(&s->stkctr[i]) & STKCTR_TRACK_CONTENT))
	continue;

	ptr = stktable_data_ptr(s->stkctr[i].table, ts, STKTABLE_DT_CONN_CUR);
	if (ptr) {
	HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);

	if (stktable_data_cast(ptr, conn_cur) > 0)
	stktable_data_cast(ptr, conn_cur)--;

	HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);

	/* If data was modified, we need to touch to re-schedule sync */
	stktable_touch_local(s->stkctr[i].table, ts, 0);
	}
	stkctr_set_entry(&s->stkctr[i], NULL);
	stksess_kill_if_expired(s->stkctr[i].table, ts, 1);
	}
	}

	/* Increase total and concurrent connection count for stick entry <ts> of table
	* <t>. The caller is responsible for ensuring that <t> and <ts> are valid
	* pointers, and for calling this only once per connection.
	*/
	static inline void stream_start_counters(struct stktable t, struct stksess ts)
	{
	void *ptr;

	HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);

	ptr = stktable_data_ptr(t, ts, STKTABLE_DT_CONN_CUR);
	if (ptr)
	stktable_data_cast(ptr, conn_cur)++;

	ptr = stktable_data_ptr(t, ts, STKTABLE_DT_CONN_CNT);
	if (ptr)
	stktable_data_cast(ptr, conn_cnt)++;

	ptr = stktable_data_ptr(t, ts, STKTABLE_DT_CONN_RATE);
	if (ptr)
	update_freq_ctr_period(&stktable_data_cast(ptr, conn_rate),
	t->data_arg[STKTABLE_DT_CONN_RATE].u, 1);
	if (tick_isset(t->expire))
	ts->expire = tick_add(now_ms, MS_TO_TICKS(t->expire));

	HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);

	/* If data was modified, we need to touch to re-schedule sync */
	stktable_touch_local(t, ts, 0);
	}

	/* Enable tracking of stream counters as <stkctr> on stksess <ts>. The caller is
	* responsible for ensuring that <t> and <ts> are valid pointers. Some controls
	* are performed to ensure the state can still change.
	*/
	static inline void stream_track_stkctr(struct stkctr ctr, struct stktable t, struct stksess *ts)
	{
	/* Why this test ???? */
	if (stkctr_entry(ctr))
	return;

	ctr->table = t;
	stkctr_set_entry(ctr, ts);
	stream_start_counters(t, ts);
	}

	/* Increase the number of cumulated HTTP requests in the tracked counters */
	static void inline stream_inc_http_req_ctr(struct stream *s)
	{
	struct stksess *ts;
	void *ptr;
	int i;

	for (i = 0; i < MAX_SESS_STKCTR; i++) {
	struct stkctr *stkctr = &s->stkctr[i];

	ts = stkctr_entry(stkctr);
	if (!ts) {
	stkctr = &s->sess->stkctr[i];
	ts = stkctr_entry(stkctr);
	if (!ts)
	continue;
	}

	HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);

	ptr = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_HTTP_REQ_CNT);
	if (ptr)
	stktable_data_cast(ptr, http_req_cnt)++;

	ptr = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_HTTP_REQ_RATE);
	if (ptr)
	update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
	stkctr->table->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);

	HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);

	/* If data was modified, we need to touch to re-schedule sync */
	stktable_touch_local(stkctr->table, ts, 0);
	}
	}

	/* Increase the number of cumulated HTTP requests in the backend's tracked
	* counters. We don't look up the session since it cannot happen in the bakcend.
	*/
	static void inline stream_inc_be_http_req_ctr(struct stream *s)
	{
	struct stksess *ts;
	void *ptr;
	int i;

	for (i = 0; i < MAX_SESS_STKCTR; i++) {
	struct stkctr *stkctr = &s->stkctr[i];

	ts = stkctr_entry(stkctr);
	if (!ts)
	continue;

	if (!(stkctr_flags(&s->stkctr[i]) & STKCTR_TRACK_BACKEND))
	continue;

	HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);

	ptr = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_HTTP_REQ_CNT);
	if (ptr)
	stktable_data_cast(ptr, http_req_cnt)++;

	ptr = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_HTTP_REQ_RATE);
	if (ptr)
	update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
	stkctr->table->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);

	HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);

	/* If data was modified, we need to touch to re-schedule sync */
	stktable_touch_local(stkctr->table, ts, 0);
	}
	}

	/* Increase the number of cumulated failed HTTP requests in the tracked
	* counters. Only 4xx requests should be counted here so that we can
	* distinguish between errors caused by client behaviour and other ones.
	* Note that even 404 are interesting because they're generally caused by
	* vulnerability scans.
	*/
	static void inline stream_inc_http_err_ctr(struct stream *s)
	{
	struct stksess *ts;
	void *ptr;
	int i;

	for (i = 0; i < MAX_SESS_STKCTR; i++) {
	struct stkctr *stkctr = &s->stkctr[i];

	ts = stkctr_entry(stkctr);
	if (!ts) {
	stkctr = &s->sess->stkctr[i];
	ts = stkctr_entry(stkctr);
	if (!ts)
	continue;
	}

	HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);

	ptr = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_HTTP_ERR_CNT);
	if (ptr)
	stktable_data_cast(ptr, http_err_cnt)++;

	ptr = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_HTTP_ERR_RATE);
	if (ptr)
	update_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
	stkctr->table->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u, 1);

	HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);

	/* If data was modified, we need to touch to re-schedule sync */
	stktable_touch_local(stkctr->table, ts, 0);
	}
	}

	static void inline __stream_add_srv_conn(struct stream sess, struct server srv)
	{
	sess->srv_conn = srv;
	LIST_ADD(&srv->actconns, &sess->by_srv);
	}

	static void inline stream_add_srv_conn(struct stream sess, struct server srv)
	{
	HA_SPIN_LOCK(SERVER_LOCK, &srv->lock);
	__stream_add_srv_conn(sess, srv);
	HA_SPIN_UNLOCK(SERVER_LOCK, &srv->lock);
	}

	static void inline stream_del_srv_conn(struct stream *sess)
	{
	struct server *srv = sess->srv_conn;

	if (!srv)
	return;

	HA_SPIN_LOCK(SERVER_LOCK, &srv->lock);
	sess->srv_conn = NULL;
	LIST_DEL(&sess->by_srv);
	HA_SPIN_UNLOCK(SERVER_LOCK, &srv->lock);
	}

	static void inline stream_init_srv_conn(struct stream *sess)
	{
	sess->srv_conn = NULL;
	LIST_INIT(&sess->by_srv);
	}

	void service_keywords_register(struct action_kw_list *kw_list);
	void list_services(FILE *out);

	#endif /* _PROTO_STREAM_H */

	/*
	* Local variables:
	* c-indent-level: 8
	* c-basic-offset: 8
	* End:
	*/