1.\" $OpenBSD: raise.3,v 1.9 2012/11/10 03:51:41 guenther Exp $ 2.\" 3.\" Copyright (c) 1990, 1991, 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.\" the American National Standards Committee X3, on Information 8.\" Processing Systems. 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. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.Dd $Mdocdate: November 10 2012 $ 35.Dt RAISE 3 36.Os 37.Sh NAME 38.Nm raise 39.Nd send a signal to the current thread 40.Sh SYNOPSIS 41.Fd #include <signal.h> 42.Ft int 43.Fn raise "int sig" 44.Sh DESCRIPTION 45The 46.Fn raise 47function sends the signal 48.Fa sig 49to the current thread. 50.Sh RETURN VALUES 51Upon successful completion, a value of 0 is returned. 52Otherwise, a value of \-1 is returned and the global variable 53.Va errno 54is set to indicate the error. 55.Sh ERRORS 56.Fn raise 57will fail and no signal will be sent if: 58.Bl -tag -width Er 59.It Bq Er EINVAL 60.Fa sig 61is not a valid signal number. 62.El 63.Sh SEE ALSO 64.Xr kill 2 65.Sh STANDARDS 66The 67.Fn raise 68function conforms to 69.St -ansiC 70and 71.St -p1003.1-2008 . 72