1*2fe8fb19SBen Gras.\" $NetBSD: _lwp_wakeup.2,v 1.5 2008/04/30 13:10:51 martin Exp $ 2*2fe8fb19SBen Gras.\" 3*2fe8fb19SBen Gras.\" Copyright (c) 2003 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. 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 13, 2003 31*2fe8fb19SBen Gras.Dt _LWP_WAKEUP 2 32*2fe8fb19SBen Gras.Os 33*2fe8fb19SBen Gras.Sh NAME 34*2fe8fb19SBen Gras.Nm _lwp_wakeup 35*2fe8fb19SBen Gras.Nd make a blocked light-weight process runnable 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_wakeup "lwpid_t lwp" 42*2fe8fb19SBen Gras.Sh DESCRIPTION 43*2fe8fb19SBen Gras.Fn _lwp_wakeup 44*2fe8fb19SBen Grasmakes a blocked LWP runnable. The blocked LWP must be in 45*2fe8fb19SBen Gras.Dv LSSLEEP 46*2fe8fb19SBen Grasstate. 47*2fe8fb19SBen GrasUnblocking the LWP does not guarantee that it will make progress; it 48*2fe8fb19SBen Grasmay block again as soon as it resumes execution in the kernel. 49*2fe8fb19SBen Gras.Sh RETURN VALUES 50*2fe8fb19SBen GrasUpon successful completion, 51*2fe8fb19SBen Gras.Fn _lwp_wakeup 52*2fe8fb19SBen Grasreturns a value of 0. 53*2fe8fb19SBen GrasOtherwise, an error code is returned to indicate the error. 54*2fe8fb19SBen Gras.Sh ERRORS 55*2fe8fb19SBen Gras.Fn _lwp_wakeup 56*2fe8fb19SBen Graswill fail if: 57*2fe8fb19SBen Gras.Bl -tag -width [ENODEV] 58*2fe8fb19SBen Gras.It Bq Er ESRCH 59*2fe8fb19SBen GrasNo LWP can be found in the current process corresponding to that 60*2fe8fb19SBen Grasspecified by 61*2fe8fb19SBen Gras.Fa lwp . 62*2fe8fb19SBen Gras.It Bq Er ENODEV 63*2fe8fb19SBen GrasThe specified LWP is not in 64*2fe8fb19SBen Gras.Dv LSSLEEP 65*2fe8fb19SBen Grasstate. 66*2fe8fb19SBen Gras.It Bq Er EBUSY 67*2fe8fb19SBen GrasThe specified LWP is blocked in an uninterruptible sleep. 68*2fe8fb19SBen Gras.El 69*2fe8fb19SBen Gras.Sh HISTORY 70*2fe8fb19SBen GrasThe 71*2fe8fb19SBen Gras.Fn _lwp_wakeup 72*2fe8fb19SBen Grassystem call first appeared in 73*2fe8fb19SBen Gras.Nx 2.0 . 74