1/*- 2 * Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29#include <sys/cdefs.h> 30__FBSDID("$FreeBSD$"); 31 32#include <pthread.h> 33#include <stdint.h> 34#include <stdlib.h> 35 36#include "threads.h" 37 38struct thrd_param { 39 thrd_start_t func; 40 void *arg; 41}; 42 43static void * 44thrd_entry(void *arg) 45{ 46 struct thrd_param tp; 47 48 tp = *(struct thrd_param *)arg; 49 free(arg); 50 return ((void *)(intptr_t)tp.func(tp.arg)); 51} 52 53int 54thrd_create(thrd_t *thr, thrd_start_t func, void *arg) 55{ 56 struct thrd_param *tp; 57 58 /* 59 * Work around return type inconsistency. Wrap execution using 60 * a function conforming to pthread_create()'s start_routine. 61 */ 62 tp = malloc(sizeof(*tp)); 63 if (tp == NULL) 64 return (thrd_nomem); 65 tp->func = func; 66 tp->arg = arg; 67 if (pthread_create(thr, NULL, thrd_entry, tp) != 0) { 68 free(tp); 69 return (thrd_error); 70 } 71 return (thrd_success); 72} 73 74thrd_t 75thrd_current(void) 76{ 77 78 return (pthread_self()); 79} 80 81int 82thrd_detach(thrd_t thr) 83{ 84 85 if (pthread_detach(thr) != 0) 86 return (thrd_error); 87 return (thrd_success); 88} 89 90int 91thrd_equal(thrd_t thr0, thrd_t thr1) 92{ 93 94 return (pthread_equal(thr0, thr1)); 95} 96 97_Noreturn void 98thrd_exit(int res) 99{ 100 101 pthread_exit((void *)(intptr_t)res); 102} 103 104int 105thrd_join(thrd_t thr, int *res) 106{ 107 void *value_ptr; 108 109 if (pthread_join(thr, &value_ptr) != 0) 110 return (thrd_error); 111 if (res != NULL) 112 *res = (intptr_t)value_ptr; 113 return (thrd_success); 114} 115 116int 117thrd_sleep(const struct timespec *duration, struct timespec *remaining) 118{ 119 120 return (nanosleep(duration, remaining)); 121} 122 123void 124thrd_yield(void) 125{ 126 127 pthread_yield(); 128} 129