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71 lines
3 KiB
C
71 lines
3 KiB
C
/*
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* Copyright (c) 2007-2012, Vsevolod Stakhov
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* All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer. Redistributions in binary form
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* must reproduce the above copyright notice, this list of conditions and the
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* following disclaimer in the documentation and/or other materials provided with
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* the distribution. Neither the name of the author nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef UPSTREAM_H
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#define UPSTREAM_H
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#include "config.h"
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struct upstream {
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unsigned int errors;
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time_t time;
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unsigned char dead;
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unsigned char priority;
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int16_t weight;
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uint32_t *ketama_points;
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size_t ketama_points_size;
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};
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void upstream_fail (struct upstream *up, time_t now);
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void upstream_ok (struct upstream *up, time_t now);
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void revive_all_upstreams (void *ups, size_t members, size_t msize);
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int upstream_ketama_add (struct upstream *up, char *up_key, size_t keylen, size_t keypoints);
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struct upstream* get_random_upstream (void *ups, size_t members, size_t msize,
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time_t now, time_t error_timeout,
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time_t revive_timeout, size_t max_errors);
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struct upstream* get_upstream_by_hash (void *ups, size_t members, size_t msize,
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time_t now, time_t error_timeout,
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time_t revive_timeout, size_t max_errors,
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char *key, size_t keylen);
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struct upstream* get_upstream_round_robin (void *ups, size_t members, size_t msize,
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time_t now, time_t error_timeout,
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time_t revive_timeout, size_t max_errors);
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struct upstream* get_upstream_by_hash_ketama (void *ups, size_t members, size_t msize, time_t now,
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time_t error_timeout, time_t revive_timeout, size_t max_errors,
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char *key, size_t keylen);
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struct upstream* get_upstream_master_slave (void *ups, size_t members, size_t msize,
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time_t now, time_t error_timeout,
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time_t revive_timeout, size_t max_errors);
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#endif /* UPSTREAM_H */
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/*
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* vi:ts=4
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*/
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