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Commit | Line | Data |
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ca9cc28c AZ |
1 | #include "qemu-common.h" |
2 | #include "audio.h" | |
3 | ||
4 | #define AUDIO_CAP "audio-pt" | |
5 | ||
6 | #include "audio_int.h" | |
7 | #include "audio_pt_int.h" | |
8 | ||
9 | static void logerr (struct audio_pt *pt, int err, const char *fmt, ...) | |
10 | { | |
11 | va_list ap; | |
12 | ||
13 | va_start (ap, fmt); | |
14 | AUD_vlog (pt->drv, fmt, ap); | |
15 | va_end (ap); | |
16 | ||
17 | AUD_log (NULL, "\n"); | |
18 | AUD_log (pt->drv, "Reason: %s\n", strerror (err)); | |
19 | } | |
20 | ||
21 | int audio_pt_init (struct audio_pt *p, void *(*func) (void *), | |
22 | void *opaque, const char *drv, const char *cap) | |
23 | { | |
24 | int err, err2; | |
25 | const char *efunc; | |
26 | ||
27 | p->drv = drv; | |
28 | ||
29 | err = pthread_mutex_init (&p->mutex, NULL); | |
30 | if (err) { | |
31 | efunc = "pthread_mutex_init"; | |
32 | goto err0; | |
33 | } | |
34 | ||
35 | err = pthread_cond_init (&p->cond, NULL); | |
36 | if (err) { | |
37 | efunc = "pthread_cond_init"; | |
38 | goto err1; | |
39 | } | |
40 | ||
41 | err = pthread_create (&p->thread, NULL, func, opaque); | |
42 | if (err) { | |
43 | efunc = "pthread_create"; | |
44 | goto err2; | |
45 | } | |
46 | ||
47 | return 0; | |
48 | ||
49 | err2: | |
50 | err2 = pthread_cond_destroy (&p->cond); | |
51 | if (err2) { | |
52 | logerr (p, err2, "%s(%s): pthread_cond_destroy failed", cap, AUDIO_FUNC); | |
53 | } | |
54 | ||
55 | err1: | |
56 | err2 = pthread_mutex_destroy (&p->mutex); | |
57 | if (err2) { | |
58 | logerr (p, err2, "%s(%s): pthread_mutex_destroy failed", cap, AUDIO_FUNC); | |
59 | } | |
60 | ||
61 | err0: | |
62 | logerr (p, err, "%s(%s): %s failed", cap, AUDIO_FUNC, efunc); | |
63 | return -1; | |
64 | } | |
65 | ||
66 | int audio_pt_fini (struct audio_pt *p, const char *cap) | |
67 | { | |
68 | int err, ret = 0; | |
69 | ||
70 | err = pthread_cond_destroy (&p->cond); | |
71 | if (err) { | |
72 | logerr (p, err, "%s(%s): pthread_cond_destroy failed", cap, AUDIO_FUNC); | |
73 | ret = -1; | |
74 | } | |
75 | ||
76 | err = pthread_mutex_destroy (&p->mutex); | |
77 | if (err) { | |
78 | logerr (p, err, "%s(%s): pthread_mutex_destroy failed", cap, AUDIO_FUNC); | |
79 | ret = -1; | |
80 | } | |
81 | return ret; | |
82 | } | |
83 | ||
84 | int audio_pt_lock (struct audio_pt *p, const char *cap) | |
85 | { | |
86 | int err; | |
87 | ||
88 | err = pthread_mutex_lock (&p->mutex); | |
89 | if (err) { | |
90 | logerr (p, err, "%s(%s): pthread_mutex_lock failed", cap, AUDIO_FUNC); | |
91 | return -1; | |
92 | } | |
93 | return 0; | |
94 | } | |
95 | ||
96 | int audio_pt_unlock (struct audio_pt *p, const char *cap) | |
97 | { | |
98 | int err; | |
99 | ||
100 | err = pthread_mutex_unlock (&p->mutex); | |
101 | if (err) { | |
102 | logerr (p, err, "%s(%s): pthread_mutex_unlock failed", cap, AUDIO_FUNC); | |
103 | return -1; | |
104 | } | |
105 | return 0; | |
106 | } | |
107 | ||
108 | int audio_pt_wait (struct audio_pt *p, const char *cap) | |
109 | { | |
110 | int err; | |
111 | ||
112 | err = pthread_cond_wait (&p->cond, &p->mutex); | |
113 | if (err) { | |
114 | logerr (p, err, "%s(%s): pthread_cond_wait failed", cap, AUDIO_FUNC); | |
115 | return -1; | |
116 | } | |
117 | return 0; | |
118 | } | |
119 | ||
120 | int audio_pt_unlock_and_signal (struct audio_pt *p, const char *cap) | |
121 | { | |
122 | int err; | |
123 | ||
124 | err = pthread_mutex_unlock (&p->mutex); | |
125 | if (err) { | |
126 | logerr (p, err, "%s(%s): pthread_mutex_unlock failed", cap, AUDIO_FUNC); | |
127 | return -1; | |
128 | } | |
129 | err = pthread_cond_signal (&p->cond); | |
130 | if (err) { | |
131 | logerr (p, err, "%s(%s): pthread_cond_signal failed", cap, AUDIO_FUNC); | |
132 | return -1; | |
133 | } | |
134 | return 0; | |
135 | } | |
136 | ||
137 | int audio_pt_join (struct audio_pt *p, void **arg, const char *cap) | |
138 | { | |
139 | int err; | |
140 | void *ret; | |
141 | ||
142 | err = pthread_join (p->thread, &ret); | |
143 | if (err) { | |
144 | logerr (p, err, "%s(%s): pthread_join failed", cap, AUDIO_FUNC); | |
145 | return -1; | |
146 | } | |
147 | *arg = ret; | |
148 | return 0; | |
149 | } |