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-.\" Copyright (c) 2016 The FreeBSD Foundation, Inc.
-.\"
-.\" This documentation was written by
-.\" Konstantin Belousov <kib@FreeBSD.org> under sponsorship
-.\" from the FreeBSD Foundation.
-.\"
-.\" 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, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.Dd May 5, 2020
-.Dt THR_EXIT 2
-.Os
-.Sh NAME
-.Nm thr_exit
-.Nd terminate current thread
-.Sh LIBRARY
-.Lb libc
-.Sh SYNOPSIS
-.In sys/thr.h
-.Ft void
-.Fn thr_exit "long *state"
-.Sh DESCRIPTION
-.Bf -symbolic
-This function is intended for implementing threading.
-Normal applications should call
-.Xr pthread_exit 3
-instead.
-.Ef
-.Pp
-The
-.Fn thr_exit
-system call terminates the current kernel-scheduled thread.
-.Pp
-If the
-.Fa state
-argument is not
-.Dv NULL ,
-the location pointed to by the argument is
-updated with an arbitrary non-zero value, and an
-.Xr _umtx_op 2
-.Dv UMTX_OP_WAKE
-operation is consequently performed on the location.
-.Pp
-Attempts to terminate the last thread in the process are silently ignored.
-Use
-.Xr _exit 2
-syscall to terminate the process.
-.Sh RETURN VALUES
-The function does not return a value.
-A return from the function indicates that the calling thread was the
-last one in the process.
-.Sh SEE ALSO
-.Xr _exit 2 ,
-.Xr _umtx_op 2 ,
-.Xr thr_kill 2 ,
-.Xr thr_kill2 2 ,
-.Xr thr_new 2 ,
-.Xr thr_self 2 ,
-.Xr thr_set_name 2 ,
-.Xr pthread_exit 3
-.Sh STANDARDS
-The
-.Fn thr_exit
-system call is non-standard and is used by
-.Lb libthr
-to implement
-.St -p1003.1-2001
-.Xr pthread 3
-functionality.
-.Sh HISTORY
-The
-.Fn thr_exit
-system call first appeared in
-.Fx 5.2 .