.\" Copyright (c) 1983, 1991 The Regents of the University of California.
.\" All rights reserved.
.\"
.\" %sccs.include.redist.man%
.\"
.\"     @(#)sigpause.2	6.6 (Berkeley) 03/10/91
.\"
.Dd 
.Dt SIGPAUSE 2
.Os BSD 4
.Sh NAME
.Nm sigpause
.Nd atomically release blocked signals and wait for interrupt
.Sh SYNOPSIS
.Fd #include <sys/signal.h>
.Ft int
.Fn sigpause "int sigmask"
.Sh DESCRIPTION
.Sy This interface is made obsolete by
.Xr sigsuspend 2 .
.Pp
.Fn Sigpause
assigns 
.Fa sigmask
to the set of masked signals
and then waits for a signal to arrive;
on return the set of masked signals is restored.
.Fa Sigmask
is usually 0 to indicate that no
signals are to be blocked.
.Fn Sigpause
always terminates by being interrupted, returning -1 with
.Va errno
set to
.Dv EINTR
.Sh SEE ALSO
.Xr sigsuspend 2 ,
.Xr kill 2 ,
.Xr sigaction 2 ,
.Xr sigprocmask 2 ,
.Xr sigblock 2 ,
.Xr sigvec 2
.Sh HISTORY
The
.Nm
function call appeared in
.Bx 4.2
and has been deprecated.