1.\" $OpenBSD: pthread_kill.3,v 1.3 2013/06/05 03:44:50 tedu Exp $ 2.\" 3.\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>. 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice(s), this list of conditions and the following disclaimer as 11.\" the first lines of this file unmodified other than the possible 12.\" addition of one or more copyright notices. 13.\" 2. Redistributions in binary form must reproduce the above copyright 14.\" notice(s), this list of conditions and the following disclaimer in 15.\" the documentation and/or other materials provided with the 16.\" distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY 19.\" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE 22.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 25.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 26.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 27.\" OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 28.\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29.\" 30.\" $FreeBSD: src/lib/libc_r/man/pthread_kill.3,v 1.8 2001/10/01 16:09:09 ru Exp $ 31.Dd $Mdocdate: June 5 2013 $ 32.Dt PTHREAD_KILL 3 33.Os 34.Sh NAME 35.Nm pthread_kill 36.Nd send a signal to a specified thread 37.Sh SYNOPSIS 38.In pthread.h 39.In signal.h 40.Ft int 41.Fn pthread_kill "pthread_t thread" "int sig" 42.Sh DESCRIPTION 43The 44.Fn pthread_kill 45function sends a signal, specified by 46.Fa sig , 47to a thread, specified by 48.Fa thread . 49If 50.Fa sig 51is 0, error checking is performed, but no signal is actually sent. 52.Sh RETURN VALUES 53If successful, 54.Fn pthread_kill 55returns 0. 56Otherwise, an error number is returned. 57.Sh ERRORS 58.Fn pthread_kill 59will fail if: 60.Bl -tag -width Er 61.It Bq Er ESRCH 62.Fa thread 63is an invalid thread ID. 64.It Bq Er EINVAL 65.Fa sig 66is an invalid or unsupported signal number. 67.El 68.Sh SEE ALSO 69.Xr kill 2 , 70.Xr pthread_self 3 , 71.Xr raise 3 72.Sh STANDARDS 73.Fn pthread_kill 74conforms to 75.St -p1003.1-96 76