1.\" 2.\" Copyright (c) 2002 Julian Elischer 3.\" All rights reserved. 4.\" 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25.\" SUCH DAMAGE. 26.\" 27.Dd July 5, 2002 28.Dt THREAD_EXIT 9 29.Os 30.Sh NAME 31.Nm thread_exit 32.Nd abandon current thread context 33.Sh SYNOPSIS 34.In sys/param.h 35.In sys/proc.h 36.Ft void 37.Fn thread_exit "void" 38.Sh DESCRIPTION 39The 40.Fn thread_exit 41function implements the machine independent prelude to a thread 42shutdown. 43It will not return, and will result in a call to 44.Xr mi_switch 9 45to schedule some other thread. 46.Pp 47.Fn thread_exit 48arranges to free all the resources of the thread, specifically the kernel 49stack. 50.Pp 51To protect the 52.Xr runqueue 9 , 53.Fn thread_exit 54must be called with the 55.Va sched_lock 56mutex held. 57.Sh SEE ALSO 58.Xr mi_switch 9 , 59.Xr mutex 9 , 60.Xr runqueue 9 , 61.Xr sleep 9 62