/* $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
