NetBSD/lib/libpthread/pthread_kill.3

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.\" $NetBSD: pthread_kill.3,v 1.4 2003/10/30 11:51:42 jdolecek Exp $
.\"
.\" Copyright (c) 2002 The NetBSD Foundation, Inc.
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.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" 3. Neither the name of The NetBSD Foundation nor the names of its
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.\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>.
.\" All rights reserved.
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.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice(s), this list of conditions and the following disclaimer as
.\" the first lines of this file unmodified other than the possible
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.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice(s), this list of conditions and the following disclaimer in
.\" the documentation and/or other materials provided with the
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" $FreeBSD: src/lib/libpthread/man/pthread_kill.3,v 1.9 2002/09/16 19:29:28 mini Exp $
.Dd January 30, 2003
.Dt PTHREAD_KILL 3
.Os
.Sh NAME
.Nm pthread_kill
.Nd send a signal to a specified thread
.Sh LIBRARY
.Lb libpthread
.Sh SYNOPSIS
.In pthread.h
.In signal.h
.Ft int
.Fn pthread_kill "pthread_t thread" "int sig"
.Sh DESCRIPTION
The
.Fn pthread_kill
function sends a signal, specified by
.Fa sig ,
to a thread, specified by
.Fa thread .
The signal will be handled in the context of
.Fa thread ,
but the signal action may alter the process as a whole.
If
.Fa sig
is 0, error checking is performed, but no signal is actually sent.
.Sh RETURN VALUES
If successful,
.Fn pthread_kill
returns 0.
Otherwise, an error number is returned.
.Sh ERRORS
.Fn pthread_kill
shall fail if:
.Bl -tag -width Er
.It Bq Er ESRCH
.Fa thread
is an invalid thread ID.
.It Bq Er EINVAL
.Fa sig
is an invalid or unsupported signal number.
.El
.Sh SEE ALSO
.Xr kill 2 ,
.Xr pthread_self 3 ,
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.Xr raise 3 ,
.Xr sigwait 3
.Sh STANDARDS
.Fn pthread_kill
conforms to
.St -p1003.1-96 .