1*2fe8fb19SBen Gras.\" $NetBSD: _lwp_kill.2,v 1.4 2009/06/24 22:19:14 zafer Exp $ 2*2fe8fb19SBen Gras.\" 3*2fe8fb19SBen Gras.\" Copyright (c) 2003, 2007 The NetBSD Foundation, Inc. 4*2fe8fb19SBen Gras.\" All rights reserved. 5*2fe8fb19SBen Gras.\" 6*2fe8fb19SBen Gras.\" This code is derived from software contributed to The NetBSD Foundation 7*2fe8fb19SBen Gras.\" by Jason R. Thorpe of Wasabi Systems, Inc, and by Andrew Doran. 8*2fe8fb19SBen Gras.\" 9*2fe8fb19SBen Gras.\" Redistribution and use in source and binary forms, with or without 10*2fe8fb19SBen Gras.\" modification, are permitted provided that the following conditions 11*2fe8fb19SBen Gras.\" are met: 12*2fe8fb19SBen Gras.\" 1. Redistributions of source code must retain the above copyright 13*2fe8fb19SBen Gras.\" notice, this list of conditions and the following disclaimer. 14*2fe8fb19SBen Gras.\" 2. Redistributions in binary form must reproduce the above copyright 15*2fe8fb19SBen Gras.\" notice, this list of conditions and the following disclaimer in the 16*2fe8fb19SBen Gras.\" documentation and/or other materials provided with the distribution. 17*2fe8fb19SBen Gras.\" 18*2fe8fb19SBen Gras.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19*2fe8fb19SBen Gras.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20*2fe8fb19SBen Gras.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21*2fe8fb19SBen Gras.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22*2fe8fb19SBen Gras.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23*2fe8fb19SBen Gras.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24*2fe8fb19SBen Gras.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25*2fe8fb19SBen Gras.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26*2fe8fb19SBen Gras.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27*2fe8fb19SBen Gras.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28*2fe8fb19SBen Gras.\" POSSIBILITY OF SUCH DAMAGE. 29*2fe8fb19SBen Gras.\" 30*2fe8fb19SBen Gras.Dd January 20, 2007 31*2fe8fb19SBen Gras.Dt _LWP_KILL 2 32*2fe8fb19SBen Gras.Os 33*2fe8fb19SBen Gras.Sh NAME 34*2fe8fb19SBen Gras.Nm _lwp_kill 35*2fe8fb19SBen Gras.Nd send a signal to a light-weight process 36*2fe8fb19SBen Gras.Sh LIBRARY 37*2fe8fb19SBen Gras.Lb libc 38*2fe8fb19SBen Gras.Sh SYNOPSIS 39*2fe8fb19SBen Gras.In lwp.h 40*2fe8fb19SBen Gras.Ft int 41*2fe8fb19SBen Gras.Fn _lwp_kill "lwpid_t lwp" "int sig" 42*2fe8fb19SBen Gras.Sh DESCRIPTION 43*2fe8fb19SBen Gras.Fn _lwp_kill 44*2fe8fb19SBen Grassends the signal specified by 45*2fe8fb19SBen Gras.Fa sig 46*2fe8fb19SBen Grasto the light-weight process specified by 47*2fe8fb19SBen Gras.Fa lwp . 48*2fe8fb19SBen GrasIf the 49*2fe8fb19SBen Gras.Fa sig 50*2fe8fb19SBen Grasargument is given as 0 (zero), 51*2fe8fb19SBen Gras.Nm 52*2fe8fb19SBen Graswill test for the existence of the target LWP, but will take no further 53*2fe8fb19SBen Grasaction. 54*2fe8fb19SBen Gras.Pp 55*2fe8fb19SBen GrasJob control signals and uncatchable signals can not be directed to a specific 56*2fe8fb19SBen GrasLWP: if posted with 57*2fe8fb19SBen Gras.Nm , 58*2fe8fb19SBen Grasthey will affect all LWPs in the process. 59*2fe8fb19SBen Gras.Pp 60*2fe8fb19SBen GrasSignals will be posted successfully to suspended LWPs, but will not be 61*2fe8fb19SBen Grashandled further until the LWP has been continued. 62*2fe8fb19SBen Gras.Sh RETURN VALUES 63*2fe8fb19SBen GrasA 0 value indicates that the call succeeded. 64*2fe8fb19SBen GrasA \-1 return value indicates an error occurred and 65*2fe8fb19SBen Gras.Va errno 66*2fe8fb19SBen Grasis set to indicate the reason. 67*2fe8fb19SBen Gras.Sh ERRORS 68*2fe8fb19SBen Gras.Bl -tag -width [EINVAL] 69*2fe8fb19SBen Gras.It Bq Er EINVAL 70*2fe8fb19SBen Gras.Fa sig 71*2fe8fb19SBen Grasis not a valid signal number. 72*2fe8fb19SBen Gras.It Bq Er ESRCH 73*2fe8fb19SBen GrasNo LWP can be found in the current process corresponding to that 74*2fe8fb19SBen Grasspecified by 75*2fe8fb19SBen Gras.Fa lwp . 76*2fe8fb19SBen Gras.El 77*2fe8fb19SBen Gras.Sh SEE ALSO 78*2fe8fb19SBen Gras.Xr _lwp_continue 2 , 79*2fe8fb19SBen Gras.Xr _lwp_suspend 2 , 80*2fe8fb19SBen Gras.Xr kill 2 , 81*2fe8fb19SBen Gras.Xr sigaction 2 , 82*2fe8fb19SBen Gras.Xr signal 7 83*2fe8fb19SBen Gras.Sh HISTORY 84*2fe8fb19SBen GrasThe 85*2fe8fb19SBen Gras.Fn _lwp_kill 86*2fe8fb19SBen Grassystem call first appeared in 87*2fe8fb19SBen Gras.Nx 5.0 . 88