pause - stop until signal
Pause is made obsolete by sigsuspend(2).
The pause() function forces a process to pause until a signal is received
from either the kill(2) function or an interval timer (see
Upon termination of a signal handler started during a
pause() call will return.
Always returns -1.
The pause() function may set the global variable errno to
[EINTR] The call was interrupted.
kill(2), select(2), setitimer(2), sigsuspend(2)
A pause() syscall appeared in Version 6 AT&T UNIX.
OpenBSD 3.6 June 4, 1993
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