{
volatile pthread_descr self = thread_self();
sigset_t unblock, initial_mask;
+#ifdef NANOSLEEP_WORKS
int already_canceled = 0;
int was_signalled = 0;
+#else
+ int retsleep;
+ int already_canceled;
+ int was_signalled;
+#endif
sigjmp_buf jmpbuf;
pthread_extricate_if extr;
+#ifndef NANOSLEEP_WORKS
+ requeue_and_wait_again:
+
+ retsleep = 0;
+ already_canceled = 0;
+ was_signalled = 0;
+#endif
+
/* Set up extrication interface */
extr.pu_object = cond;
extr.pu_extricate_func = cond_extricate_func;
sigemptyset(&unblock);
sigaddset(&unblock, __pthread_sig_restart);
sigprocmask(SIG_UNBLOCK, &unblock, &initial_mask);
+#ifdef NANOSLEEP_WORKS
/* Sleep for the required duration. If woken by a signal, resume waiting
as required by Single Unix Specification. */
while (__libc_nanosleep(reltime, reltime) != 0)
;
+#else
+ /* Sleep for the required duration */
+ retsleep = __libc_nanosleep(&reltime, NULL);
+#endif
/* Block the restart signal again */
sigprocmask(SIG_SETMASK, &initial_mask, NULL);
was_signalled = 0;
} else {
+#ifndef NANOSLEEP_WORKS
+ retsleep = -1;
+#endif
was_signalled = 1;
}
THREAD_SETMEM(self, p_signal_jmp, NULL);
if (was_on_queue) {
__pthread_set_own_extricate_if(self, 0);
pthread_mutex_lock(mutex);
+#ifdef NANOSLEEP_WORKS
return ETIMEDOUT;
+#else
+ if (retsleep == 0)
+ return ETIMEDOUT;
+ /* Woken by a signal: resume waiting as required by Single Unix
+ Specification. */
+ goto requeue_and_wait_again;
+#endif
}
suspend(self);
{
volatile pthread_descr self = thread_self();
sigset_t unblock, initial_mask;
+#ifdef NANOSLEEP_WORKS
int already_canceled = 0;
int was_signalled = 0;
+#else
+ int retsleep;
+ int already_canceled;
+ int was_signalled;
+#endif
sigjmp_buf jmpbuf;
pthread_extricate_if extr;
already_canceled = 0;
was_signalled = 0;
+#ifndef NANOSLEEP_WORKS
+ requeue_and_wait_again:
+
+ retsleep = 0;
+ already_canceled = 0;
+ was_signalled = 0;
+#endif
+
/* Set up extrication interface */
extr.pu_object = cond;
extr.pu_extricate_func = cond_extricate_func;
sigemptyset(&unblock);
sigaddset(&unblock, __pthread_sig_restart);
sigprocmask(SIG_UNBLOCK, &unblock, &initial_mask);
+#ifdef NANOSLEEP_WORKS
/* Sleep for the required duration. If woken by a signal, resume waiting
as required by Single Unix Specification. */
while (__libc_nanosleep(reltime, reltime) != 0)
;
+#else
+ /* Sleep for the required duration */
+ retsleep = __libc_nanosleep(&reltime, NULL);
+#endif
/* Block the restart signal again */
sigprocmask(SIG_SETMASK, &initial_mask, NULL);
was_signalled = 0;
} else {
+#ifndef NANOSLEEP_WORKS
+ retsleep = -1;
+#endif
was_signalled = 1;
}
THREAD_SETMEM(self, p_signal_jmp, NULL);
if (was_on_queue) {
__pthread_set_own_extricate_if(self, 0);
pthread_mutex_lock(mutex);
+#ifdef NANOSLEEP_WORKS
return ETIMEDOUT;
+#else
+ if (retsleep == 0)
+ return ETIMEDOUT;
+ /* Woken by a signal: resume waiting as required by Single Unix
+ Specification. */
+ goto requeue_and_wait_again;
+#endif
}
/* Eat the outstanding restart() from the signaller */