NAME
sigpause —
atomically release blocked signals and
wait for interrupt
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include
<signal.h>
int
sigpause(int
sig);
DESCRIPTION
This interface is made obsolete by sigsuspend(2).
Sigpause()
assigns sig to the set of masked signals and then
waits for a signal to arrive; on return the set of masked signals is
restored. Sig is usually 0, indicating that no signals
are to be blocked. Sigpause() always terminates by
being interrupted, returning -1 with errno set to
EINTR.
COMPATIBILITY
sigpause() now takes a signal value and
not a mask. This often appears as a hang in sigpause$UNIX2003 or with
sigpause() returning with
errno set to EINVAL. Use
sigsuspend() with signal masks.
SEE ALSO
kill(2), sigaction(2), sigblock(2), sigprocmask(2), sigsuspend(2), sigvec(2)
HISTORY
The sigpause() function call appeared in
4.2BSD and has been deprecated.