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/* $NetBSD: threads.h,v 1.3 2019/09/10 22:34:19 kamil Exp $ */
/*-
* Copyright (c) 2016 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Kamil Rytarowski.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _THREADS_H_
#define _THREADS_H_
#include <sys/cdefs.h>
#include <limits.h>
#include <pthread.h>
#include <stdint.h>
#include <time.h>
/* ISO/IEC 9899:201x 7.26.1/3 */
#ifndef __thread_local_is_defined
#if ((__cplusplus - 0) < 201103L)
#define thread_local _Thread_local
#endif
#define __thread_local_is_defined
#endif /* __thread_local_is_defined */
#ifndef ONCE_FLAG_INIT
#define ONCE_FLAG_INIT PTHREAD_ONCE_INIT
#endif /* ONCE_FLAG_INIT */
#ifndef TSS_DTOR_ITERATIONS
#define TSS_DTOR_ITERATIONS PTHREAD_DESTRUCTOR_ITERATIONS
#endif /* TSS_DTOR_ITERATIONS */
/* ISO/IEC 9899:201x 7.26.1/4 */
typedef pthread_cond_t cnd_t;
typedef pthread_t thrd_t;
typedef pthread_key_t tss_t;
typedef pthread_mutex_t mtx_t;
typedef void (*tss_dtor_t) (void *);
typedef int (*thrd_start_t) (void *);
typedef pthread_once_t once_flag;
/* ISO/IEC 9899:201x 7.26.1/5 */
enum {
mtx_plain = 1,
mtx_recursive = 2,
mtx_timed = 4,
_MTX_MAXTYPE = 0x7fffffff
};
enum {
thrd_timedout = -1,
thrd_success = 0,
thrd_busy = 1,
thrd_error = 2,
thrd_nomem = 3,
_THRD_MAXTYPE = 0x7fffffff
};
__BEGIN_DECLS
/* ISO/IEC 9899:201x 7.26.2 Initialization functions */
void call_once(once_flag *, void (*)(void));
/* ISO/IEC 9899:201x 7.26.3 Condition variable functions */
int cnd_broadcast(cnd_t *);
void cnd_destroy(cnd_t *);
int cnd_init(cnd_t *);
int cnd_signal(cnd_t *);
int cnd_timedwait(cnd_t * __restrict, mtx_t * __restrict,
const struct timespec * __restrict);
int cnd_wait(cnd_t *, mtx_t *);
/* ISO/IEC 9899:201x 7.26.4 Mutex functions */
void mtx_destroy(mtx_t *);
int mtx_init(mtx_t *, int);
int mtx_lock(mtx_t *);
int mtx_timedlock(mtx_t *__restrict, const struct timespec *__restrict);
int mtx_trylock(mtx_t *);
int mtx_unlock(mtx_t *);
/* ISO/IEC 9899:201x 7.26.5 Thread functions */
int thrd_create(thrd_t *, thrd_start_t, void *);
thrd_t thrd_current(void);
int thrd_detach(thrd_t);
int thrd_equal(thrd_t, thrd_t);
__dead void thrd_exit(int);
int thrd_join(thrd_t, int *);
int thrd_sleep(const struct timespec *, struct timespec *);
void thrd_yield(void);
/* ISO/IEC 9899:201x 7.26.6 Thread-specific storage functions */
int tss_create(tss_t *, tss_dtor_t);
void tss_delete(tss_t);
void *tss_get(tss_t);
int tss_set(tss_t, void *);
__END_DECLS
#endif
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