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SubjectRe: Synchronous signal delivery..
Davide Libenzi wrote:
> Many ( many ) times, when you're going to wait for events, you want to
> specify a maximum wait time ( reletive time ) and not an absolute time.
> This is how ppl think about "timeouts". Different beast is the absolute
> timer, that you can easily achieve with POSIX timers ( TIMER_ABSTIME ) and
> a sigfd() dropped inside an event retrieval interface.

Agreed, both interfaces are useful. You see that epoll_wait is
optimised for one in particular though.

Curiously. I'll probably continue to use a calculated relative
timeout instead of using a POSIX timer, as the overhead of setting up
and tearing down the latter is more system calls which we still like
to avoid if it's not hard.

-- Jamie
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