1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org> 5 * Copyright (c) 2022 Dominic Martinez <dom@dominicm.dev> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #if __GNUC__ > 2 /* not available on gcc2 */ 33 34 #ifndef _THREADS_H_ 35 #define _THREADS_H_ 36 37 #include <sys/types.h> 38 #include <time.h> 39 40 typedef pthread_cond_t cnd_t; 41 typedef pthread_mutex_t mtx_t; 42 typedef pthread_t thrd_t; 43 typedef pthread_key_t tss_t; 44 typedef pthread_once_t once_flag; 45 46 typedef void (*tss_dtor_t)(void *); 47 typedef int (*thrd_start_t)(void *); 48 49 enum { 50 mtx_plain = 0x1, 51 mtx_recursive = 0x2, 52 mtx_timed = 0x4 53 }; 54 55 enum { 56 thrd_busy = 1, 57 thrd_error = 2, 58 thrd_nomem = 3, 59 thrd_success = 4, 60 thrd_timedout = 5 61 }; 62 63 #if !defined(__cplusplus) || __cplusplus < 201103L 64 #define thread_local _Thread_local 65 #endif 66 #define ONCE_FLAG_INIT { -1 } 67 #define TSS_DTOR_ITERATIONS 4 68 69 #ifdef __cplusplus 70 extern "C" { 71 #endif 72 73 void call_once(once_flag *, void (*)(void)); 74 int cnd_broadcast(cnd_t *); 75 void cnd_destroy(cnd_t *); 76 int cnd_init(cnd_t *); 77 int cnd_signal(cnd_t *); 78 int cnd_timedwait(cnd_t *__restrict, mtx_t *__restrict __mtx, 79 const struct timespec *__restrict); 80 int cnd_wait(cnd_t *, mtx_t *__mtx); 81 void mtx_destroy(mtx_t *__mtx); 82 int mtx_init(mtx_t *__mtx, int); 83 int mtx_lock(mtx_t *__mtx); 84 int mtx_timedlock(mtx_t *__restrict __mtx, 85 const struct timespec *__restrict); 86 int mtx_trylock(mtx_t *__mtx); 87 int mtx_unlock(mtx_t *__mtx); 88 int thrd_create(thrd_t *thread, thrd_start_t, void *); 89 thrd_t thrd_current(void); 90 int thrd_detach(thrd_t); 91 int thrd_equal(thrd_t, thrd_t); 92 void thrd_exit(int) __attribute__((noreturn)); 93 int thrd_join(thrd_t, int *); 94 int thrd_sleep(const struct timespec *, struct timespec *); 95 void thrd_yield(void); 96 97 int tss_create(tss_t *, tss_dtor_t); 98 void tss_delete(tss_t); 99 void * tss_get(tss_t); 100 int tss_set(tss_t, void *); 101 102 #ifdef __cplusplus 103 } 104 #endif 105 106 #endif /* _THREADS_H_ */ 107 108 #endif /* __GNUC__ > 2 */ 109