b6cbf7203b
This patch imports the unmodified current version of NetBSD libc. The NetBSD includes are in /nbsd_include, while the libc code itself is split between lib/nbsd_libc and common/lib/libc.
79 lines
2.6 KiB
Groff
79 lines
2.6 KiB
Groff
.\" $NetBSD: _lwp_unpark.2,v 1.4 2010/11/02 20:49:47 skrll Exp $
|
|
.\"
|
|
.\" Copyright (c) 2003, 2007 The NetBSD Foundation, Inc.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" This code is derived from software contributed to The NetBSD Foundation
|
|
.\" by Jason R. Thorpe of Wasabi Systems, Inc, and by Andrew Doran.
|
|
.\"
|
|
.\" 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 January 20, 2007
|
|
.Dt _LWP_UNPARK 2
|
|
.Os
|
|
.Sh NAME
|
|
.Nm _lwp_unpark
|
|
.Nd resume execution of a waiting LWP
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In lwp.h
|
|
.Ft int
|
|
.Fn _lwp_unpark "lwpid_t lwp" "const void *hint"
|
|
.Sh DESCRIPTION
|
|
.Fn _lwp_unpark
|
|
resumes execution of the light-weight process
|
|
.Fa lwp .
|
|
.Pp
|
|
The target LWP is assumed to be waiting in the kernel as a result of a
|
|
call to
|
|
.Fn _lwp_park .
|
|
If the target LWP is not currently waiting, it will return immediately
|
|
upon the next call to
|
|
.Fn _lwp_park .
|
|
.Pp
|
|
See
|
|
.Xr _lwp_park 2
|
|
for a description of the
|
|
.Fa hint
|
|
argument.
|
|
.Sh RETURN VALUES
|
|
A 0 value indicates that the call succeeded.
|
|
A \-1 return value indicates an error occurred and
|
|
.Va errno
|
|
is set to indicate the reason.
|
|
.Sh ERRORS
|
|
.Bl -tag -width [EINVAL]
|
|
.It Bq Er ESRCH
|
|
No LWP can be found in the current process corresponding to that
|
|
specified by
|
|
.Fa lwp .
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr _lwp_park 2 ,
|
|
.Xr _lwp_unpark_all 2 ,
|
|
.Xr _lwp_wakeup 2
|
|
.Sh HISTORY
|
|
The
|
|
.Fn _lwp_unpark
|
|
system call first appeared in
|
|
.Nx 5.0 .
|