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Command: VOP_ADVLOCK | Section: 9 | Source: FreeBSD | File: VOP_ADVLOCK.9.gz
VOP_ADVLOCK(9) FreeBSD Kernel Developer's Manual VOP_ADVLOCK(9)
NAME
VOP_ADVLOCK - advisory record locking
SYNOPSIS
#include <sys/param.h>
#include <sys/vnode.h>
#include <sys/fcntl.h>
#include <sys/lockf.h>
int
VOP_ADVLOCK(struct vnode *vp, caddr_t id, int op, struct flock *fl,
int flags);
DESCRIPTION
The arguments are:
vp The vnode being manipulated.
id The id token which is changing the lock.
op The operation to perform (see fcntl(2)).
fl Description of the lock.
flags One or more of the following:
F_WAIT Wait until lock is granted.
F_FLOCK Use flock(2) semantics for lock.
F_POSIX Use POSIX semantics for lock.
F_REMOTE Lock owner is remote NFS client.
F_NOINTR Mask signals while waiting for the lock.
This entry point manipulates advisory record locks on the file. Most
file systems delegate the work for this call to lf_advlock().
RETURN VALUES
Zero is returned on success, otherwise an error is returned.
SEE ALSO
fcntl(2), flock(2), vnode(9)
AUTHORS
This manual page was written by Doug Rabson.
FreeBSD 14.1-RELEASE-p8 February 10, 2021 FreeBSD 14.1-RELEASE-p8