static void
expired_timedwait(void)
{
semid_t id;
u_int elapsed;
if (ksem_init(&id, 0) < 0) {
fail_errno("ksem_init");
return;
}
/* This should fail with a timeout and leave the value at 0. */
if (timedwait(id, 2500, &elapsed, ETIMEDOUT) < 0) {
ksem_destroy(id);
return;
}
if (!ELAPSED(elapsed, 2500)) {
fail_err(
"ksem_timedwait() of locked sem took %ums instead of 2500ms",
elapsed);
ksem_destroy(id);
return;
}
if (checkvalue(id, 0) < 0) {
ksem_destroy(id);
return;
}
if (ksem_destroy(id) < 0) {
fail_errno("ksem_destroy");
return;
}
pass();
}
static void
unlocked_timedwait(void)
{
semid_t id;
u_int elapsed;
if (ksem_init(&id, 1) < 0) {
fail_errno("ksem_init");
return;
}
/* This should succeed right away and set the value to 0. */
if (timedwait(id, 5000, &elapsed, 0) < 0) {
ksem_destroy(id);
return;
}
if (!ELAPSED(elapsed, 0)) {
fail_err("ksem_timedwait() of unlocked sem took %ums", elapsed);
ksem_destroy(id);
return;
}
if (checkvalue(id, 0) < 0) {
ksem_destroy(id);
return;
}
if (ksem_destroy(id) < 0) {
fail_errno("ksem_destroy");
return;
}
pass();
}
inline int timedwait(time_t seconds) {
struct timespec curtime;
#ifdef HAVE_CLOCK_GETTIME
clock_gettime(CLOCK_REALTIME, &curtime);
#else
struct timeval timeofday;
gettimeofday(&timeofday, 0);
curtime.tv_sec = timeofday.tv_sec;
curtime.tv_nsec = timeofday.tv_usec * 1000;
#endif
curtime.tv_sec += seconds;
return timedwait(&curtime);
}
static void
locked_timedwait(void)
{
semid_t id;
u_int elapsed;
if (ksem_init(&id, 0) < 0) {
fail_errno("ksem_init");
return;
}
/*
* Schedule a post to trigger after 1000 ms. The subsequent
* timedwait should succeed after 1000 ms as a result w/o
* timing out.
*/
if (schedule_post(id, 1000) < 0) {
ksem_destroy(id);
return;
}
if (timedwait(id, 2000, &elapsed, 0) < 0) {
check_alarm(1);
ksem_destroy(id);
return;
}
if (!ELAPSED(elapsed, 1000)) {
fail_err(
"ksem_timedwait() with delayed post took %ums instead of 1000ms",
elapsed);
check_alarm(1);
ksem_destroy(id);
return;
}
if (check_alarm(0) < 0) {
ksem_destroy(id);
return;
}
if (ksem_destroy(id) < 0) {
fail_errno("ksem_destroy");
return;
}
pass();
}
inline int timedwait(time_t seconds) {
struct timespec curtime;
#ifdef __MACH__ // OS X does not have clock_gettime, use clock_get_time
clock_serv_t cclock;
mach_timespec_t mts;
host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
clock_get_time(cclock, &mts);
mach_port_deallocate(mach_task_self(), cclock);
curtime.tv_sec = mts.tv_sec;
curtime.tv_nsec = mts.tv_nsec;
#elif HAVE_CLOCK_GETTIME
clock_gettime(CLOCK_REALTIME, &curtime);
#else
struct timeval timeofday;
gettimeofday(&timeofday, 0);
curtime.tv_sec = timeofday.tv_sec;
curtime.tv_nsec = timeofday.tv_usec * 1000;
#endif
curtime.tv_sec += seconds;
return timedwait(&curtime);
}
bool timedwait(unsigned int sec, int nsec) {
return timedwait(create_timespec(sec, nsec));
}