1997-03-03 18:01:01 +00:00
|
|
|
.\" -*- nroff -*-
|
|
|
|
.\"
|
|
|
|
.\" Copyright (c) 1996 Doug Rabson
|
|
|
|
.\"
|
|
|
|
.\" All rights reserved.
|
|
|
|
.\"
|
|
|
|
.\" This program is free software.
|
|
|
|
.\"
|
|
|
|
.\" 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 DEVELOPERS ``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 DEVELOPERS 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.
|
|
|
|
.\"
|
1999-08-28 00:22:10 +00:00
|
|
|
.\" $FreeBSD$
|
1997-03-03 18:01:01 +00:00
|
|
|
.\"
|
1999-06-30 12:02:52 +00:00
|
|
|
.Dd June 30, 1999
|
1997-03-03 18:01:01 +00:00
|
|
|
.Os
|
|
|
|
.Dt VOP_ADVLOCK 9
|
|
|
|
.Sh NAME
|
|
|
|
.Nm VOP_ADVLOCK
|
|
|
|
.Nd advisory record locking
|
|
|
|
.Sh SYNOPSIS
|
2001-10-01 16:09:29 +00:00
|
|
|
.In sys/param.h
|
|
|
|
.In sys/vnode.h
|
|
|
|
.In sys/fcntl.h
|
|
|
|
.In sys/lockf.h
|
1997-03-03 18:01:01 +00:00
|
|
|
.Ft int
|
|
|
|
.Fn VOP_ADVLOCK "struct vnode *vp" "caddr_t id" "int op" "struct flock *fl" "int flags"
|
|
|
|
.Sh DESCRIPTION
|
|
|
|
The arguments are:
|
|
|
|
.Bl -tag -width flags
|
2003-05-31 14:07:25 +00:00
|
|
|
.It Fa vp
|
2005-01-28 10:43:05 +00:00
|
|
|
The vnode being manipulated.
|
2003-05-31 14:07:25 +00:00
|
|
|
.It Fa id
|
2005-01-28 10:43:05 +00:00
|
|
|
The id token which is changing the lock.
|
2003-05-31 14:07:25 +00:00
|
|
|
.It Fa op
|
2005-01-28 10:43:05 +00:00
|
|
|
The operation to perform (see
|
|
|
|
.Xr fcntl 2 ) .
|
2003-05-31 14:07:25 +00:00
|
|
|
.It Fa fl
|
2005-01-28 10:43:05 +00:00
|
|
|
Description of the lock.
|
2003-05-31 14:07:25 +00:00
|
|
|
.It Fa flags
|
1999-06-30 12:02:52 +00:00
|
|
|
One of more of the following:
|
2005-01-28 10:43:05 +00:00
|
|
|
.Pp
|
|
|
|
.Bl -tag -width ".Dv F_UNLCK" -offset indent -compact
|
|
|
|
.It Dv F_RDLCK
|
|
|
|
Shared or read lock.
|
|
|
|
.It Dv F_UNLCK
|
|
|
|
Unlock.
|
|
|
|
.It Dv F_WRLCK
|
|
|
|
Exclusive or write lock.
|
|
|
|
.It Dv F_WAIT
|
|
|
|
Wait until lock is granted.
|
|
|
|
.It Dv F_FLOCK
|
|
|
|
Use
|
1999-06-30 12:02:52 +00:00
|
|
|
.Xr flock 2
|
2005-01-28 10:43:05 +00:00
|
|
|
semantics for lock.
|
|
|
|
.It Dv F_POSIX
|
|
|
|
Use POSIX semantics for lock.
|
1999-06-30 12:02:52 +00:00
|
|
|
.El
|
1997-03-03 18:01:01 +00:00
|
|
|
.El
|
|
|
|
.Pp
|
2003-10-23 02:11:14 +00:00
|
|
|
This entry point manipulates advisory record locks on the file.
|
|
|
|
Most file systems delegate the work for this call to
|
1999-06-30 12:02:52 +00:00
|
|
|
.Fn lf_advlock .
|
1997-03-03 18:01:01 +00:00
|
|
|
.Sh RETURN VALUES
|
|
|
|
Zero is returned on success, otherwise an error is returned.
|
|
|
|
.Sh SEE ALSO
|
1997-09-29 10:11:02 +00:00
|
|
|
.Xr fcntl 2 ,
|
1997-03-03 18:01:01 +00:00
|
|
|
.Xr flock 2 ,
|
1997-09-29 10:11:02 +00:00
|
|
|
.Xr vnode 9
|
1997-03-03 18:01:01 +00:00
|
|
|
.Sh AUTHORS
|
2005-06-28 20:15:19 +00:00
|
|
|
This manual page was written by
|
1998-03-12 07:31:21 +00:00
|
|
|
.An Doug Rabson .
|