void frametimer_object_t::test<3>()
{
clock_t t1 = clock();
ms_sleep(200);
clock_t t2 = clock();
clock_t elapsed = t2 - t1 + 1;
std::cout << "Note: using clock(), ms_sleep() actually took " << (long)elapsed << "ms" << std::endl;
F64 seconds_since_epoch = LLFrameTimer::getTotalSeconds();
seconds_since_epoch += 2.0;
LLFrameTimer timer;
timer.setExpiryAt(seconds_since_epoch);
/*
* Note that the ms_sleep(200) below is only guaranteed to return
* in 200ms _or_more_, so it should be true that by the 10th
* iteration we've gotten to the 2 seconds requested above
* and the timer should expire, but it can expire in fewer iterations
* if one or more of the ms_sleep calls takes longer.
* (as it did when we moved to Mac OS X 10.10)
*/
int iterations_until_expiration = 0;
while ( !timer.hasExpired() )
{
ms_sleep(200);
LLFrameTimer::updateFrameTime();
iterations_until_expiration++;
}
ensure("timer took too long to expire", iterations_until_expiration <= 10);
}
void frametimer_object_t::test<2>()
{
F64 seconds_since_epoch = LLFrameTimer::getTotalSeconds();
seconds_since_epoch += 10.0;
LLFrameTimer timer;
timer.setExpiryAt(seconds_since_epoch);
F64 expires_at = timer.expiresAt();
ensure_distance(
"set expiry matches get expiry 1",
expires_at,
seconds_since_epoch,
0.001);
seconds_since_epoch += 10.0;
timer.setExpiryAt(seconds_since_epoch);
expires_at = timer.expiresAt();
ensure_distance(
"set expiry matches get expiry 2",
expires_at,
seconds_since_epoch,
0.001);
}
void frametimer_object_t::test<3>()
{
F64 seconds_since_epoch = LLFrameTimer::getTotalSeconds();
seconds_since_epoch += 2.0;
LLFrameTimer timer;
timer.setExpiryAt(seconds_since_epoch);
ensure("timer not expired on create", !timer.hasExpired());
int ii;
for(ii = 0; ii < 10; ++ii)
{
ms_sleep(150);
LLFrameTimer::updateFrameTime();
}
ensure("timer not expired after a bit", !timer.hasExpired());
for(ii = 0; ii < 10; ++ii)
{
ms_sleep(100);
LLFrameTimer::updateFrameTime();
}
ensure("timer expired", timer.hasExpired());
}
