rmilter/include/upstream.h
2014-01-03 16:29:14 +00:00

71 lines
3 KiB
C

/*
* Copyright (c) 2007-2012, Vsevolod Stakhov
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer. 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. Neither the name of the author nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE COPYRIGHT HOLDER 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 UPSTREAM_H
#define UPSTREAM_H
#include "config.h"
struct upstream {
unsigned int errors;
time_t time;
unsigned char dead;
unsigned char priority;
int16_t weight;
uint32_t *ketama_points;
size_t ketama_points_size;
};
void upstream_fail (struct upstream *up, time_t now);
void upstream_ok (struct upstream *up, time_t now);
void revive_all_upstreams (void *ups, size_t members, size_t msize);
int upstream_ketama_add (struct upstream *up, char *up_key, size_t keylen, size_t keypoints);
struct upstream* get_random_upstream (void *ups, size_t members, size_t msize,
time_t now, time_t error_timeout,
time_t revive_timeout, size_t max_errors);
struct upstream* get_upstream_by_hash (void *ups, size_t members, size_t msize,
time_t now, time_t error_timeout,
time_t revive_timeout, size_t max_errors,
char *key, size_t keylen);
struct upstream* get_upstream_round_robin (void *ups, size_t members, size_t msize,
time_t now, time_t error_timeout,
time_t revive_timeout, size_t max_errors);
struct upstream* get_upstream_by_hash_ketama (void *ups, size_t members, size_t msize, time_t now,
time_t error_timeout, time_t revive_timeout, size_t max_errors,
char *key, size_t keylen);
struct upstream* get_upstream_master_slave (void *ups, size_t members, size_t msize,
time_t now, time_t error_timeout,
time_t revive_timeout, size_t max_errors);
#endif /* UPSTREAM_H */
/*
* vi:ts=4
*/