1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/*-
* Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
* All rights reserved.
*
* 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 AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <pthread.h>
#include <stdint.h>
#include <stdlib.h>
#include "threads.h"
struct thrd_param {
thrd_start_t func;
void *arg;
};
static void *
thrd_entry(void *arg)
{
struct thrd_param tp;
tp = *(struct thrd_param *)arg;
free(arg);
return ((void *)(intptr_t)tp.func(tp.arg));
}
int
thrd_create(thrd_t *thr, thrd_start_t func, void *arg)
{
struct thrd_param *tp;
/*
* Work around return type inconsistency. Wrap execution using
* a function conforming to pthread_create()'s start_routine.
*/
tp = malloc(sizeof(*tp));
if (tp == NULL)
return (thrd_nomem);
tp->func = func;
tp->arg = arg;
if (pthread_create(thr, NULL, thrd_entry, tp) != 0) {
free(tp);
return (thrd_error);
}
return (thrd_success);
}
thrd_t
thrd_current(void)
{
return (pthread_self());
}
int
thrd_detach(thrd_t thr)
{
if (pthread_detach(thr) != 0)
return (thrd_error);
return (thrd_success);
}
int
thrd_equal(thrd_t thr0, thrd_t thr1)
{
return (pthread_equal(thr0, thr1));
}
_Noreturn void
thrd_exit(int res)
{
pthread_exit((void *)(intptr_t)res);
}
int
thrd_join(thrd_t thr, int *res)
{
void *value_ptr;
if (pthread_join(thr, &value_ptr) != 0)
return (thrd_error);
if (res != NULL)
*res = (intptr_t)value_ptr;
return (thrd_success);
}
int
thrd_sleep(const struct timespec *duration, struct timespec *remaining)
{
return (nanosleep(duration, remaining));
}
void
thrd_yield(void)
{
pthread_yield();
}
|
