87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
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/*
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* util/shm_side/shm_main.h - control the shared memory for unbound.
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*
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* Copyright (c) 2007, NLnet Labs. All rights reserved.
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*
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* This software is open source.
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*
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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
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* are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of the NLNET LABS nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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*
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* This file contains functions for the SHM side.
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*/
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#ifndef UTIL_SHM_SIDE_MAIN_H
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#define UTIL_SHM_SIDE_MAIN_H
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struct daemon;
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struct worker;
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/** Some global statistics that are not in struct stats_info,
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* this struct is shared on a shm segment */
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struct shm_stat_info {
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int num_threads;
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struct {
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struct timeval now;
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struct timeval up;
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struct timeval elapsed;
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} time;
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struct {
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size_t msg;
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size_t rrset;
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size_t val;
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size_t iter;
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size_t subnet;
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} mem;
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};
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/**
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* The SHM info.
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*/
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struct shm_main_info {
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/** stats_info array, shared memory segment.
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* [0] is totals, [1..thread_num] are per-thread stats */
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struct stats_info* ptr_arr;
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/** the global stats block, shared memory segment */
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struct shm_stat_info* ptr_ctl;
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int key;
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int id_ctl;
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int id_arr;
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};
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int shm_main_init(struct daemon* daemon);
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void shm_main_shutdown(struct daemon* daemon);
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void shm_main_run(struct worker *worker);
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#endif /* UTIL_SHM_SIDE_MAIN_H */
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