1.\" $OpenBSD: sigpending.2,v 1.3 2000/10/18 05:12:12 aaron Exp $ 2.\" $NetBSD: sigpending.2,v 1.2 1995/02/27 12:37:26 cgd Exp $ 3.\" 4.\" Copyright (c) 1993 5.\" The Regents of the University of California. All rights reserved. 6.\" 7.\" This code is derived from software contributed to Berkeley by 8.\" Berkeley Software Design, Inc. 9.\" 10.\" Redistribution and use in source and binary forms, with or without 11.\" modification, are permitted provided that the following conditions 12.\" are met: 13.\" 1. Redistributions of source code must retain the above copyright 14.\" notice, this list of conditions and the following disclaimer. 15.\" 2. Redistributions in binary form must reproduce the above copyright 16.\" notice, this list of conditions and the following disclaimer in the 17.\" documentation and/or other materials provided with the distribution. 18.\" 3. All advertising materials mentioning features or use of this software 19.\" must display the following acknowledgement: 20.\" This product includes software developed by the University of 21.\" California, Berkeley and its contributors. 22.\" 4. Neither the name of the University nor the names of its contributors 23.\" may be used to endorse or promote products derived from this software 24.\" without specific prior written permission. 25.\" 26.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36.\" SUCH DAMAGE. 37.\" 38.\" @(#)sigpending.2 8.3 (Berkeley) 1/12/94 39.\" 40.Dd January 12, 1994 41.Dt SIGPENDING 2 42.Os 43.Sh NAME 44.Nm sigpending 45.Nd get pending signals 46.Sh SYNOPSIS 47.Fd #include <signal.h> 48.Ft int 49.Fn sigpending "sigset_t *set" 50.Sh DESCRIPTION 51The 52.Nm sigpending 53function returns a mask of the signals pending for delivery 54to the calling process in the location indicated by 55.Fa set . 56Signals may be pending because they are currently masked, 57or transiently before delivery (although the latter case is not 58normally detectable). 59.Sh RETURN VALUES 60A 0 value indicated that the call succeeded. 61A \-1 return value indicates an error occurred and 62.Va errno 63is set to indicated the reason. 64.Sh ERRORS 65The 66.Nm sigpending 67function does not currently detect any errors. 68.Sh SEE ALSO 69.Xr sigaction 2 , 70.Xr sigprocmask 2 71.Sh STANDARDS 72The 73.Nm sigpending 74function is defined by 75.St -p1003.1-88 . 76