pthread_spin.h

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/*
 * Copyright (C) 2014 Freie Universität Berlin
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#ifdef __cplusplus
#include <atomic>
using std::atomic_flag;
#else
#include <stdatomic.h>
#endif

typedef struct {
    atomic_flag flag; 
} pthread_spinlock_t;
 
#ifdef __cplusplus
extern "C" {
#endif

int pthread_spin_init(pthread_spinlock_t *lock, int pshared);

int pthread_spin_destroy(pthread_spinlock_t *lock);

int pthread_spin_lock(pthread_spinlock_t *lock);

int pthread_spin_trylock(pthread_spinlock_t *lock);

int pthread_spin_unlock(pthread_spinlock_t *lock);
 
#ifdef __cplusplus
}
#endif