1.\" Copyright (c) 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" Berkeley Software Design, Inc. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 3. Neither the name of the University nor the names of its contributors 16.\" may be used to endorse or promote products derived from this software 17.\" without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" SUCH DAMAGE. 30.\" 31.Dd September 6, 2013 32.Dt SIGPENDING 2 33.Os 34.Sh NAME 35.Nm sigpending 36.Nd get pending signals 37.Sh LIBRARY 38.Lb libc 39.Sh SYNOPSIS 40.In signal.h 41.Ft int 42.Fn sigpending "sigset_t *set" 43.Sh DESCRIPTION 44The 45.Fn sigpending 46system call returns a mask of the signals pending for delivery 47to the calling thread or the calling process in the location indicated by 48.Fa set . 49Signals may be pending because they are currently masked, 50or transiently before delivery (although the latter case is not 51normally detectable). 52.Sh RETURN VALUES 53.Rv -std sigpending 54.Sh ERRORS 55The 56.Fn sigpending 57system call 58will fail if: 59.Bl -tag -width Er 60.It Bq Er EFAULT 61The 62.Fa set 63argument specified an invalid address. 64.El 65.Sh SEE ALSO 66.Xr sigaction 2 , 67.Xr sigprocmask 2 , 68.Xr sigsuspend 2 , 69.Xr sigsetops 3 70.Sh STANDARDS 71The 72.Fn sigpending 73system call is expected to conform to 74.St -p1003.1-90 . 75