1.\" -*- nroff -*- 2.\" 3.\" Copyright (c) 1996 Doug Rabson 4.\" 5.\" All rights reserved. 6.\" 7.\" This program is free software. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR 19.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, 22.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28.\" 29.\" $Id$ 30.\" 31.Dd July 24, 1996 32.Os 33.Dt VOP_ADVLOCK 9 34.Sh NAME 35.Nm VOP_ADVLOCK 36.Nd advisory record locking 37.Sh SYNOPSIS 38.Fd #include <sys/vnode.h> 39.Fd #include <sys/fcntl.h> 40.Fd #include <sys/lockf.h> 41.Ft int 42.Fn VOP_ADVLOCK "struct vnode *vp" "caddr_t id" "int op" "struct flock *fl" "int flags" 43.Sh DESCRIPTION 44.Pp 45The arguments are: 46.Bl -tag -width flags 47.It Ar vp 48the vnode being manipulated 49.It Ar id 50the process changing the lock 51.It Ar op 52the operation to perform 53.It Ar fl 54description of the lock 55.It Ar flags 56??? 57.El 58.Pp 59This entry point manipulates advisory record locks on the file. Most 60filesystems delegate the work for this call to 61.Xr lf_advlock 9 . 62.Sh RETURN VALUES 63Zero is returned on success, otherwise an error is returned. 64.Sh SEE ALSO 65.Xr vnode 9 , 66.Xr flock 2 , 67.Xr fcntl 2 68.Sh AUTHORS 69This man page was written by Doug Rabson. 70