.\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>.
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.\" $FreeBSD: src/share/man/man3/pthread_kill.3,v 1.13 2007/10/22 10:08:00 ru Exp $
.\" $DragonFly: src/lib/libc_r/man/pthread_kill.3,v 1.2 2003/06/17 04:26:48 dillon Exp $
.Dd July 10, 2009
.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 .
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
The
.Fn pthread_kill
function will 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 ,
.Xr raise 3
.Sh STANDARDS
The
.Fn pthread_kill
function conforms to
.St -p1003.1-96 .