refactor adjtimex in terms of clock_adjtime
[musl] / src / thread / pthread_join.c
1 #include "pthread_impl.h"
2 #include <sys/mman.h>
3
4 static void dummy1(pthread_t t)
5 {
6 }
7 weak_alias(dummy1, __tl_sync);
8
9 static int __pthread_timedjoin_np(pthread_t t, void **res, const struct timespec *at)
10 {
11         int state, cs, r = 0;
12         __pthread_testcancel();
13         __pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
14         if (cs == PTHREAD_CANCEL_ENABLE) __pthread_setcancelstate(cs, 0);
15         while ((state = t->detach_state) && r != ETIMEDOUT && r != EINVAL) {
16                 if (state >= DT_DETACHED) a_crash();
17                 r = __timedwait_cp(&t->detach_state, state, CLOCK_REALTIME, at, 1);
18         }
19         __pthread_setcancelstate(cs, 0);
20         if (r == ETIMEDOUT || r == EINVAL) return r;
21         __tl_sync(t);
22         if (res) *res = t->result;
23         if (t->map_base) __munmap(t->map_base, t->map_size);
24         return 0;
25 }
26
27 int __pthread_join(pthread_t t, void **res)
28 {
29         return __pthread_timedjoin_np(t, res, 0);
30 }
31
32 static int __pthread_tryjoin_np(pthread_t t, void **res)
33 {
34         return t->detach_state==DT_JOINABLE ? EBUSY : __pthread_join(t, res);
35 }
36
37 weak_alias(__pthread_tryjoin_np, pthread_tryjoin_np);
38 weak_alias(__pthread_timedjoin_np, pthread_timedjoin_np);
39 weak_alias(__pthread_join, pthread_join);