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This
is a simplified interface to setitimer(2)
. The function waits a count
of before asserting the terminating signal System activity or time used
in processing the call may cause a slight delay. If the argument is non-zero,
the signal will be sent to the process every microseconds after the timer
expires (e.g. after microseconds have passed).
When the signal
has successfully been caught, returns the amount of time left on the clock.
The maximum number of allowed is 2147483647.
The
function appeared in
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