Re: Use nanosleep(2) in pg_usleep, if available?

On Mon, Mar 11, 2019 at 8:03 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> While the WaitLatch alternative avoids the problem, I doubt
> we're ever going to remove pg_usleep entirely, so it'd be
> good if it had fewer sharp edges. nanosleep() has the
> same behavior as Windows, ie, the sleep is guaranteed to be
> terminated by a signal. So if we used nanosleep() where available
> we'd have that behavior on just about every interesting platform.

Is there any feasible way to go the other way, and make pg_usleep()
actually always sleep for the requested time, rather than terminating
early?

(Probably not, but I'm just asking.)

--
Robert Haas
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