Consistently handle allocation failures. Some functions are changed to
return bool or int instead of void to allow returning an error.
Also fix a buffer size miscalculation in lua/uloop and use _exit() instead
of exit() on errors after forking.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
It turns out that mach_absolute_time() is not monotonic at all. While
at it, convert the CLOCK_REALTIME implementation to using
clock_get_time() as well.
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
