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
|
#ifndef THREAD_COMPAT_H
#define THREAD_COMPAT_H
#ifdef __APPLE__
#include <pthread.h>
#include <time.h>
#include <errno.h>
#include <unistd.h>
#include "cpu_compat.h"
/* Forward declarations */
static inline int pthread_timedjoin_np(pthread_t thread, void **retval, const struct timespec *abstime);
/* pthread_tryjoin_np implementation for macOS */
static inline int pthread_tryjoin_np(pthread_t thread, void **retval) {
struct timespec ts = { 0, 0 }; // Zero timeout
return pthread_timedjoin_np(thread, retval, &ts);
}
/* pthread_timedjoin_np implementation for macOS */
static inline int pthread_timedjoin_np(pthread_t thread, void **retval, const struct timespec *abstime) {
int res;
struct timespec ts_start;
/* Try joining immediately first */
res = pthread_kill(thread, 0);
if (res != 0) {
return res;
}
if (clock_gettime(CLOCK_REALTIME, &ts_start) != 0) {
return EINVAL;
}
while ((res = pthread_join(thread, retval)) == EBUSY) {
struct timespec ts_now;
if (clock_gettime(CLOCK_REALTIME, &ts_now) != 0) {
return EINVAL;
}
/* Check if we've exceeded the timeout */
if (ts_now.tv_sec > ts_start.tv_sec + abstime->tv_sec ||
(ts_now.tv_sec == ts_start.tv_sec + abstime->tv_sec &&
ts_now.tv_nsec >= ts_start.tv_nsec + abstime->tv_nsec)) {
return ETIMEDOUT;
}
/* Sleep for a short time before trying again */
struct timespec ts_sleep = { 0, 1000000 }; /* 1ms */
nanosleep(&ts_sleep, NULL);
}
return res;
}
#endif /* __APPLE__ */
#endif /* THREAD_COMPAT_H */
|
