150472Speter/*-
21823Sphk * Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
345763Sobrien * All rights reserved.
445763Sobrien *
518390Speter * Redistribution and use in source and binary forms, with or without
695294Sobrien * modification, are permitted provided that the following conditions
795294Sobrien * are met:
895294Sobrien * 1. Redistributions of source code must retain the above copyright
9207995Sobrien *    notice, this list of conditions and the following disclaimer.
1096340Sobrien * 2. Redistributions in binary form must reproduce the above copyright
11169718Skan *    notice, this list of conditions and the following disclaimer in the
122375Sbde *    documentation and/or other materials provided with the distribution.
1396340Sobrien *
1445943Sobrien * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1518390Speter * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1696340Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17167471Skan * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1845299Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19207995Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2073306Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2155220Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2296340Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23189834Sdas * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2468572Sobrien * SUCH DAMAGE.
2568572Sobrien *
2668572Sobrien * $FreeBSD$
2754987Sobrien */
2854987Sobrien
2954987Sobrien#include <sys/cdefs.h>
3018390Speter__FBSDID("$FreeBSD$");
3155220Sobrien
3245943Sobrien#include <pthread.h>
3345943Sobrien#include <stdint.h>
3445943Sobrien#include <stdlib.h>
35208737Sjmallett
36208737Sjmallett#include "threads.h"
37208737Sjmallett
38204771Simpstruct thrd_param {
39204771Simp	thrd_start_t	 func;
40204771Simp	void		*arg;
41208737Sjmallett};
42208737Sjmallett
43208737Sjmallettstatic void *
44208737Sjmallettthrd_entry(void *arg)
45208737Sjmallett{
46208737Sjmallett	struct thrd_param tp;
47208737Sjmallett
48208737Sjmallett	tp = *(struct thrd_param *)arg;
49208737Sjmallett	free(arg);
50208737Sjmallett	return ((void *)(intptr_t)tp.func(tp.arg));
51208737Sjmallett}
52208737Sjmallett
53208737Sjmallettint
54208737Sjmallettthrd_create(thrd_t *thr, thrd_start_t func, void *arg)
55208737Sjmallett{
56208737Sjmallett	struct thrd_param *tp;
57208737Sjmallett
58208737Sjmallett	/*
59208737Sjmallett	 * Work around return type inconsistency.  Wrap execution using
6081749Sobrien	 * a function conforming to pthread_create()'s start_routine.
6181749Sobrien	 */
6281749Sobrien	tp = malloc(sizeof(*tp));
6381749Sobrien	if (tp == NULL)
6418390Speter		return (thrd_nomem);
6518390Speter	tp->func = func;
6645301Sobrien	tp->arg = arg;
6718390Speter	if (pthread_create(thr, NULL, thrd_entry, tp) != 0) {
6854987Sobrien		free(tp);
6954987Sobrien		return (thrd_error);
7052170Sobrien	}
7118390Speter	return (thrd_success);
72169718Skan}
73169718Skan
74169718Skanthrd_t
75169718Skanthrd_current(void)
7616663Sjkh{
77169718Skan
782375Sbde	return (pthread_self());
79169718Skan}
802375Sbde
812375Sbdeint
82169718Skanthrd_detach(thrd_t thr)
83169718Skan{
84169718Skan
85169718Skan	if (pthread_detach(thr) != 0)
86169718Skan		return (thrd_error);
87169718Skan	return (thrd_success);
88169718Skan}
89169718Skan
90169718Skanint
91169718Skanthrd_equal(thrd_t thr0, thrd_t thr1)
92169718Skan{
93169718Skan
94169718Skan	return (pthread_equal(thr0, thr1));
95169718Skan}
96169718Skan
97169718Skan_Noreturn void
98169718Skanthrd_exit(int res)
99169718Skan{
10095294Sobrien
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