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/*
* util/shm_side/shm_main.h - control the shared memory for unbound.
*
* Copyright (c) 2007, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* 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 NLNET LABS 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.
*/
/**
* \file
*
* This file contains functions for the SHM side.
*/
#ifndef UTIL_SHM_SIDE_MAIN_H
#define UTIL_SHM_SIDE_MAIN_H
struct daemon;
struct worker;
/** Some global statistics that are not in struct stats_info,
* this struct is shared on a shm segment */
struct shm_stat_info {
int num_threads;
struct {
struct timeval now;
struct timeval up;
struct timeval elapsed;
} time;
struct {
size_t msg;
size_t rrset;
size_t val;
size_t iter;
size_t subnet;
} mem;
};
/**
* The SHM info.
*/
struct shm_main_info {
/** stats_info array, shared memory segment.
* [0] is totals, [1..thread_num] are per-thread stats */
struct stats_info* ptr_arr;
/** the global stats block, shared memory segment */
struct shm_stat_info* ptr_ctl;
int key;
int id_ctl;
int id_arr;
};
int shm_main_init(struct daemon* daemon);
void shm_main_shutdown(struct daemon* daemon);
void shm_main_run(struct worker *worker);
#endif /* UTIL_SHM_SIDE_MAIN_H */
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