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/*
* Copyright (c) 2010, FRiCKLE Piotr Sikora <info@frickle.com>
* Copyright (c) 2009-2010, Yichun Zhang <agentzh@gmail.com>
* Copyright (C) 2008, Maxim Dounin
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _NGX_POSTGRES_KEEPALIVE_H_
#define _NGX_POSTGRES_KEEPALIVE_H_
#include <ngx_core.h>
#include <ngx_http.h>
#include <libpq-fe.h>
#include "ngx_postgres_module.h"
#include "ngx_postgres_upstream.h"
typedef struct {
ngx_queue_t queue;
ngx_postgres_upstream_srv_conf_t *srv_conf;
ngx_connection_t *connection;
PGconn *pgconn;
struct sockaddr sockaddr;
socklen_t socklen;
ngx_str_t name;
} ngx_postgres_keepalive_cache_t;
ngx_int_t ngx_postgres_keepalive_init(ngx_pool_t *,
ngx_postgres_upstream_srv_conf_t *);
ngx_int_t ngx_postgres_keepalive_get_peer_single(ngx_peer_connection_t *,
ngx_postgres_upstream_peer_data_t *,
ngx_postgres_upstream_srv_conf_t *);
ngx_int_t ngx_postgres_keepalive_get_peer_multi(ngx_peer_connection_t *,
ngx_postgres_upstream_peer_data_t *,
ngx_postgres_upstream_srv_conf_t *);
void ngx_postgres_keepalive_free_peer(ngx_peer_connection_t *,
ngx_postgres_upstream_peer_data_t *,
ngx_postgres_upstream_srv_conf_t *, ngx_uint_t);
void ngx_postgres_keepalive_dummy_handler(ngx_event_t *);
void ngx_postgres_keepalive_close_handler(ngx_event_t *);
void ngx_postgres_keepalive_cleanup(void *);
#endif /* _NGX_POSTGRES_KEEPALIVE_H_ */
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