7a839cf576
* F_RDLCK, F_UNLCK, and F_WRLCK aren't flags. They're stored in the fl.l_type field. * Add F_REMOTE, added in r177633 * Add F_NOINTR, added in r180025 MFC after: 2 weeks Sponsored by: The FreeBSD Foundation
87 lines
2.6 KiB
Groff
87 lines
2.6 KiB
Groff
.\" -*- 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.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd May 27, 2019
|
|
.Dt VOP_ADVLOCK 9
|
|
.Os
|
|
.Sh NAME
|
|
.Nm VOP_ADVLOCK
|
|
.Nd advisory record locking
|
|
.Sh SYNOPSIS
|
|
.In sys/param.h
|
|
.In sys/vnode.h
|
|
.In sys/fcntl.h
|
|
.In sys/lockf.h
|
|
.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
|
|
.It Fa vp
|
|
The vnode being manipulated.
|
|
.It Fa id
|
|
The id token which is changing the lock.
|
|
.It Fa op
|
|
The operation to perform (see
|
|
.Xr fcntl 2 ) .
|
|
.It Fa fl
|
|
Description of the lock.
|
|
.It Fa flags
|
|
One of more of the following:
|
|
.Pp
|
|
.Bl -tag -width ".Dv F_REMOTE" -offset indent -compact
|
|
.It Dv F_WAIT
|
|
Wait until lock is granted.
|
|
.It Dv F_FLOCK
|
|
Use
|
|
.Xr flock 2
|
|
semantics for lock.
|
|
.It Dv F_POSIX
|
|
Use POSIX semantics for lock.
|
|
.It Dv F_REMOTE
|
|
Lock owner is remote NFS client.
|
|
.It Dv F_NOINTR
|
|
Mask signals while waiting for the lock.
|
|
.El
|
|
.El
|
|
.Pp
|
|
This entry point manipulates advisory record locks on the file.
|
|
Most file systems delegate the work for this call to
|
|
.Fn lf_advlock .
|
|
.Sh RETURN VALUES
|
|
Zero is returned on success, otherwise an error is returned.
|
|
.Sh SEE ALSO
|
|
.Xr fcntl 2 ,
|
|
.Xr flock 2 ,
|
|
.Xr vnode 9
|
|
.Sh AUTHORS
|
|
This manual page was written by
|
|
.An Doug Rabson .
|