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/* Copyright (C) 2019 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <pthread.h>
#include <semaphore.h>
#pragma once
typedef struct {
pthread_mutex_t mutex;
pthread_cond_t cond;
} knot_sem_mutex_t;
typedef struct {
int status;
union {
sem_t semaphore;
knot_sem_mutex_t *status_lock;
};
} knot_sem_t;
void knot_sem_init(knot_sem_t *sem, unsigned int value);
void knot_sem_wait(knot_sem_t *sem);
void knot_sem_post(knot_sem_t *sem);
void knot_sem_destroy(knot_sem_t *sem);
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