1.\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice(s), this list of conditions and the following disclaimer as 9.\" the first lines of this file unmodified other than the possible 10.\" addition of one or more copyright notices. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice(s), this list of conditions and the following disclaimer in 13.\" the documentation and/or other materials provided with the 14.\" distribution. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY 17.\" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE 20.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 23.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 25.\" OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 26.\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27.\" 28.\" $FreeBSD: src/lib/libc_r/man/pthread_kill.3,v 1.3.2.6 2001/12/17 10:08:26 ru Exp $ 29.\" $DragonFly: src/lib/libc_r/man/pthread_kill.3,v 1.2 2003/06/17 04:26:48 dillon Exp $ 30.Dd April 15, 2009 31.Dt PTHREAD_KILL 3 32.Os 33.Sh NAME 34.Nm pthread_kill 35.Nd send a signal to a specified thread 36.Sh LIBRARY 37.Lb libpthread 38.Sh SYNOPSIS 39.In pthread.h 40.In signal.h 41.Ft int 42.Fn pthread_kill "pthread_t thread" "int sig" 43.Sh DESCRIPTION 44The 45.Fn pthread_kill 46function sends a signal, specified by 47.Fa sig , 48to a thread, specified by 49.Fa thread . 50If 51.Fa sig 52is 0, error checking is performed, but no signal is actually sent. 53.Sh RETURN VALUES 54If successful, 55.Fn pthread_kill 56returns 0. 57Otherwise, an error number is returned. 58.Sh ERRORS 59.Fn pthread_kill 60will fail if: 61.Bl -tag -width Er 62.It Bq Er ESRCH 63.Fa thread 64is an invalid thread ID. 65.It Bq Er EINVAL 66.Fa sig 67is an invalid or unsupported signal number. 68.El 69.Sh SEE ALSO 70.Xr kill 2 , 71.Xr pthread_self 3 , 72.Xr raise 3 73.Sh STANDARDS 74.Fn pthread_kill 75conforms to 76.St -p1003.1-96 77