Makefile: include linux-blkzoned.c for Android, if set
[fio.git] / pshared.c
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1#include <string.h>
2
3#include "log.h"
4#include "pshared.h"
5
6int cond_init_pshared(pthread_cond_t *cond)
7{
8 pthread_condattr_t cattr;
9 int ret;
10
11 ret = pthread_condattr_init(&cattr);
12 if (ret) {
13 log_err("pthread_condattr_init: %s\n", strerror(ret));
14 return ret;
15 }
16
17#ifdef CONFIG_PSHARED
18 ret = pthread_condattr_setpshared(&cattr, PTHREAD_PROCESS_SHARED);
19 if (ret) {
20 log_err("pthread_condattr_setpshared: %s\n", strerror(ret));
21 return ret;
22 }
23#endif
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24
25#ifdef CONFIG_PTHREAD_CONDATTR_SETCLOCK
26 ret = pthread_condattr_setclock(&cattr, CLOCK_MONOTONIC);
27 if (ret) {
28 log_err("pthread_condattr_setclock: %s\n", strerror(ret));
29 return ret;
30 }
31#endif
32
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33 ret = pthread_cond_init(cond, &cattr);
34 if (ret) {
35 log_err("pthread_cond_init: %s\n", strerror(ret));
36 return ret;
37 }
38
39 return 0;
40}
41
3ed6894b 42int mutex_init_pshared_with_type(pthread_mutex_t *mutex, int type)
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43{
44 pthread_mutexattr_t mattr;
45 int ret;
46
47 ret = pthread_mutexattr_init(&mattr);
48 if (ret) {
49 log_err("pthread_mutexattr_init: %s\n", strerror(ret));
50 return ret;
51 }
52
53 /*
5ced70d4 54 * Not all platforms support process shared mutexes (NetBSD/OpenBSD)
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55 */
56#ifdef CONFIG_PSHARED
57 ret = pthread_mutexattr_setpshared(&mattr, PTHREAD_PROCESS_SHARED);
58 if (ret) {
59 log_err("pthread_mutexattr_setpshared: %s\n", strerror(ret));
60 return ret;
61 }
62#endif
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63 if (type) {
64 ret = pthread_mutexattr_settype(&mattr, type);
65 if (ret) {
66 log_err("pthread_mutexattr_settype: %s\n",
67 strerror(ret));
68 return ret;
69 }
70 }
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71 ret = pthread_mutex_init(mutex, &mattr);
72 if (ret) {
73 log_err("pthread_mutex_init: %s\n", strerror(ret));
74 return ret;
75 }
76
77 return 0;
78}
79
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80int mutex_init_pshared(pthread_mutex_t *mutex)
81{
82 return mutex_init_pshared_with_type(mutex, 0);
83}
84
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85int mutex_cond_init_pshared(pthread_mutex_t *mutex, pthread_cond_t *cond)
86{
87 int ret;
88
89 ret = mutex_init_pshared(mutex);
90 if (ret)
91 return ret;
92
93 ret = cond_init_pshared(cond);
94 if (ret)
95 return ret;
96
97 return 0;
98}