1 .\" Copyright (c) 1996 Doug Rabson
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27 .\" $FreeBSD: src/share/man/man9/VOP_ADVLOCK.9,v 1.6.2.3 2001/12/17 11:30:18 ru Exp $
34 .Nd advisory record locking
41 .Fn VOP_ADVLOCK "struct vnode *vp" "caddr_t id" "int op" "struct flock *fl" "int flags"
46 the vnode being manipulated
48 the id token which is changing the lock
50 the operation to perform (see
53 description of the lock
55 One of more of the following:
56 .Bl -column ".Dv F_UNLCK" -offset indent
57 .It Dv F_RDLCK Ta "shared or read lock"
58 .It Dv F_UNLCK Ta "unlock"
59 .It Dv F_WRLCK Ta "exclusive or write lock"
60 .It Dv F_WAIT Ta "Wait until lock is granted"
61 .It Dv F_POSIX Ta "Use POSIX semantics for lock"
65 This entry point manipulates advisory record locks on the file. Most
66 filesystems delegate the work for this call to
69 Zero is returned on success, otherwise an error is returned.
75 This man page was written by