NAME
pause —
wait for a signal
SYNOPSIS
#include
<unistd.h>
int
pause(void);
DESCRIPTION
pause()
is obsoleted by sigsuspend(2).pause()
blocks the calling thread until it receives an unmasked signal.
RETURN VALUES
pause() always returns -1.
ERRORS
pause() always sets
errno(2) to
the following value:
- [
EINTR] - The call was interrupted by a signal.
SEE ALSO
kill(2), setitimer(2), sigprocmask(2), sigsuspend(2), signal(3)
HISTORY
A pause() system call first appeared
outside of Bell Labs in the “50 changes” tape for
Version 6 AT&T UNIX. It was first
officially released with PWB/UNIX 1.0. It was reimplemented as a wrapper
around the sigpause() and
sigblock() system calls in
4.2BSD, and around the
sigsuspend(2) and
sigprocmask(2) system calls in
4.3BSD-Reno.