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VOP_ADVLOCK (9) | Kernel routines | Unix Manual Pages | :man▋
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
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