|Description||OSD::MilliSecSleep() relies on select() as portable implementation of thread sleep functionality:|
> Emulating usleep(3)
> Before the advent of usleep(3), some code employed a call to select()
> with all three sets empty, nfds zero, and a non-NULL timeout as a
> fairly portable way to sleep with subsecond precision.
Nowadays, using select() for this reason looks unreasonable.