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
|
/* $Id$ */
/***
This file is part of PulseAudio.
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <assert.h>
#include <pthread.h>
#include <atomic_ops.h>
#include <pulse/xmalloc.h>
#include "mutex.h"
#define ASSERT_SUCCESS(x) do { \
int _r = (x); \
assert(_r == 0); \
} while(0)
struct pa_mutex {
pthread_mutex_t mutex;
};
struct pa_cond {
pthread_cond_t cond;
};
pa_mutex* pa_mutex_new(int recursive) {
pa_mutex *m;
pthread_mutexattr_t attr;
pthread_mutexattr_init(&attr);
if (recursive)
ASSERT_SUCCESS(pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE));
m = pa_xnew(pa_mutex, 1);
ASSERT_SUCCESS(pthread_mutex_init(&m->mutex, &attr));
return m;
}
void pa_mutex_free(pa_mutex *m) {
assert(m);
ASSERT_SUCCESS(pthread_mutex_destroy(&m->mutex));
pa_xfree(m);
}
void pa_mutex_lock(pa_mutex *m) {
assert(m);
ASSERT_SUCCESS(pthread_mutex_lock(&m->mutex));
}
void pa_mutex_unlock(pa_mutex *m) {
assert(m);
ASSERT_SUCCESS(pthread_mutex_unlock(&m->mutex));
}
pa_cond *pa_cond_new(void) {
pa_cond *c;
c = pa_xnew(pa_cond, 1);
ASSERT_SUCCESS(pthread_cond_init(&c->cond, NULL));
return c;
}
void pa_cond_free(pa_cond *c) {
assert(c);
ASSERT_SUCCESS(pthread_cond_destroy(&c->cond));
pa_xfree(c);
}
void pa_cond_signal(pa_cond *c, int broadcast) {
assert(c);
if (broadcast)
ASSERT_SUCCESS(pthread_cond_broadcast(&c->cond));
else
ASSERT_SUCCESS(pthread_cond_signal(&c->cond));
}
int pa_cond_wait(pa_cond *c, pa_mutex *m) {
assert(c);
assert(m);
return pthread_cond_wait(&c->cond, &m->mutex);
}
|
