.\" Copyright (c) 1980 Regents of the University of California.
.\" All rights reserved. The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\" @(#)sigpause.2 6.1 (Berkeley) %G%
sigpause \- atomically release blocked signals and wait for interrupt
to the set of masked signals
and then waits for a signal to arrive;
on return the set of masked signals is restored.
is usually 0 to indicate that no
signals are now to be blocked.
always terminates by being interrupted, returning \-1 with
In normal usage, a signal is blocked using
to begin a critical section, variables modified on the occurance
of the signal are examined to determine that there is no work
to be done, and the process pauses awaiting work by using
with the mask returned by