sleep(3) (BSD Compatibility Package) sleep(3)
NAME
sleep - suspend execution for interval
SYNOPSIS
cc [ flag... ] file ... -lucb
sleep(seconds)
unsigned seconds;
DESCRIPTION
sleep suspends the current process from execution for the number of
seconds specified by the argument. The actual suspension time may be
up to 1 second less than that requested, because scheduled wakeups
occur at fixed 1-second intervals, and may be an arbitrary amount
longer because of other activity in the system.
sleep is implemented by setting an interval timer and pausing until
it expires. The previous state of this timer is saved and restored.
If the sleep time exceeds the time to the expiration of the previous
value of the timer, the process sleeps only until the timer would
have expired, and the signal which occurs with the expiration of the
timer is sent one second later.
SEE ALSO
sigpause(3), usleep(3)
getitimer(2) in the Programmer's Reference Manual
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