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36 .Nd advisory record locking
43 .Fn VOP_ADVLOCK "struct vnode *vp" "caddr_t id" "int op" "struct flock *fl" "int flags"
48 the vnode being manipulated
50 the id token which is changing the lock
52 the operation to perform (see
55 description of the lock
57 One of more of the following:
58 .Bl -column F_UNLCK -offset indent
59 .It Dv F_RDLCK Ta "shared or read lock"
60 .It Dv F_UNLCK Ta "unlock"
61 .It Dv F_WRLCK Ta "exclusive or write lock"
62 .It Dv F_WAIT Ta "Wait until lock is granted"
66 .It Dv F_POSIX Ta "Use POSIX semantics for lock"
70 This entry point manipulates advisory record locks on the file.
71 Most file systems delegate the work for this call to
74 Zero is returned on success, otherwise an error is returned.
80 This man page was written by