1#include "qemu/osdep.h"
2#include "qemu-common.h"
3#include "audio.h"
4
5#define AUDIO_CAP "audio-pt"
6
7#include "audio_int.h"
8#include "audio_pt_int.h"
9
10static void GCC_FMT_ATTR(3, 4) logerr (struct audio_pt *pt, int err,
11 const char *fmt, ...)
12{
13 va_list ap;
14
15 va_start (ap, fmt);
16 AUD_vlog (pt->drv, fmt, ap);
17 va_end (ap);
18
19 AUD_log (NULL, "\n");
20 AUD_log (pt->drv, "Reason: %s\n", strerror (err));
21}
22
23int audio_pt_init (struct audio_pt *p, void *(*func) (void *),
24 void *opaque, const char *drv, const char *cap)
25{
26 int err, err2;
27 const char *efunc;
28 sigset_t set, old_set;
29
30 p->drv = drv;
31
32 err = sigfillset (&set);
33 if (err) {
34 logerr(p, errno, "%s(%s): sigfillset failed", cap, __func__);
35 return -1;
36 }
37
38 err = pthread_mutex_init (&p->mutex, NULL);
39 if (err) {
40 efunc = "pthread_mutex_init";
41 goto err0;
42 }
43
44 err = pthread_cond_init (&p->cond, NULL);
45 if (err) {
46 efunc = "pthread_cond_init";
47 goto err1;
48 }
49
50 err = pthread_sigmask (SIG_BLOCK, &set, &old_set);
51 if (err) {
52 efunc = "pthread_sigmask";
53 goto err2;
54 }
55
56 err = pthread_create (&p->thread, NULL, func, opaque);
57
58 err2 = pthread_sigmask (SIG_SETMASK, &old_set, NULL);
59 if (err2) {
60 logerr(p, err2, "%s(%s): pthread_sigmask (restore) failed",
61 cap, __func__);
62
63
64 exit (EXIT_FAILURE);
65 }
66
67 if (err) {
68 efunc = "pthread_create";
69 goto err2;
70 }
71
72 return 0;
73
74 err2:
75 err2 = pthread_cond_destroy (&p->cond);
76 if (err2) {
77 logerr(p, err2, "%s(%s): pthread_cond_destroy failed", cap, __func__);
78 }
79
80 err1:
81 err2 = pthread_mutex_destroy (&p->mutex);
82 if (err2) {
83 logerr(p, err2, "%s(%s): pthread_mutex_destroy failed", cap, __func__);
84 }
85
86 err0:
87 logerr(p, err, "%s(%s): %s failed", cap, __func__, efunc);
88 return -1;
89}
90
91int audio_pt_fini (struct audio_pt *p, const char *cap)
92{
93 int err, ret = 0;
94
95 err = pthread_cond_destroy (&p->cond);
96 if (err) {
97 logerr(p, err, "%s(%s): pthread_cond_destroy failed", cap, __func__);
98 ret = -1;
99 }
100
101 err = pthread_mutex_destroy (&p->mutex);
102 if (err) {
103 logerr(p, err, "%s(%s): pthread_mutex_destroy failed", cap, __func__);
104 ret = -1;
105 }
106 return ret;
107}
108
109int audio_pt_lock (struct audio_pt *p, const char *cap)
110{
111 int err;
112
113 err = pthread_mutex_lock (&p->mutex);
114 if (err) {
115 logerr(p, err, "%s(%s): pthread_mutex_lock failed", cap, __func__);
116 return -1;
117 }
118 return 0;
119}
120
121int audio_pt_unlock (struct audio_pt *p, const char *cap)
122{
123 int err;
124
125 err = pthread_mutex_unlock (&p->mutex);
126 if (err) {
127 logerr(p, err, "%s(%s): pthread_mutex_unlock failed", cap, __func__);
128 return -1;
129 }
130 return 0;
131}
132
133int audio_pt_wait (struct audio_pt *p, const char *cap)
134{
135 int err;
136
137 err = pthread_cond_wait (&p->cond, &p->mutex);
138 if (err) {
139 logerr(p, err, "%s(%s): pthread_cond_wait failed", cap, __func__);
140 return -1;
141 }
142 return 0;
143}
144
145int audio_pt_unlock_and_signal (struct audio_pt *p, const char *cap)
146{
147 int err;
148
149 err = pthread_mutex_unlock (&p->mutex);
150 if (err) {
151 logerr(p, err, "%s(%s): pthread_mutex_unlock failed", cap, __func__);
152 return -1;
153 }
154 err = pthread_cond_signal (&p->cond);
155 if (err) {
156 logerr(p, err, "%s(%s): pthread_cond_signal failed", cap, __func__);
157 return -1;
158 }
159 return 0;
160}
161
162int audio_pt_join (struct audio_pt *p, void **arg, const char *cap)
163{
164 int err;
165 void *ret;
166
167 err = pthread_join (p->thread, &ret);
168 if (err) {
169 logerr(p, err, "%s(%s): pthread_join failed", cap, __func__);
170 return -1;
171 }
172 *arg = ret;
173 return 0;
174}
175
