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Man Pages


Manual Reference Pages  -  VOP_ADVLOCK (9)

NAME

VOP_ADVLOCK - advisory record locking

CONTENTS

Synopsis
Description
Return Values
See Also
Authors

SYNOPSIS


.In sys/param.h
.In sys/vnode.h
.In sys/fcntl.h
.In 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 of more of the following:

F_RDLCK
  Shared or read lock.
F_UNLCK
  Unlock.
F_WRLCK
  Exclusive or write lock.
F_WAIT Wait until lock is granted.
F_FLOCK
  Use flock(2) semantics for lock.
F_POSIX
  Use POSIX semantics for 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
.An Doug Rabson .
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