1.\" $NetBSD: sigpending.2,v 1.15 2008/10/24 15:40:21 wiz Exp $ 2.\" 3.\" Copyright (c) 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" Berkeley Software Design, Inc. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. Neither the name of the University nor the names of its contributors 18.\" may be used to endorse or promote products derived from this software 19.\" without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31.\" SUCH DAMAGE. 32.\" 33.\" @(#)sigpending.2 8.3 (Berkeley) 1/12/94 34.\" 35.Dd October 24, 2008 36.Dt SIGPENDING 2 37.Os 38.Sh NAME 39.Nm sigpending 40.Nd get pending signals 41.Sh LIBRARY 42.Lb libc 43.Sh SYNOPSIS 44.In signal.h 45.Ft int 46.Fn sigpending "sigset_t *set" 47.Sh DESCRIPTION 48The 49.Nm sigpending 50function returns a mask of the signals pending for delivery 51to the calling process in the location indicated by 52.Fa set . 53Signals may be pending because they are currently masked, 54or they are in transition before delivery (although the latter case is not 55normally detectable). 56.Sh RETURN VALUES 57A 0 value indicates that the call succeeded. 58A \-1 return value indicates an error occurred and 59.Va errno 60is set to indicate the reason. 61.Sh ERRORS 62.Fn sigpending 63will fail if: 64.Bl -tag -width Er 65.It Bq Er EFAULT 66.Fa set 67specifies an invalid address. 68.El 69.Sh SEE ALSO 70.Xr sigaction 2 , 71.Xr sigprocmask 2 , 72.Xr signal 7 73.Sh STANDARDS 74The 75.Nm sigpending 76function conforms to 77.St -p1003.1-90 . 78