Интерактивная система просмотра системных руководств (man-ов) VOP_ADVLOCK () >> VOP_ADVLOCK ( FreeBSD man: Ядро )
NAME
VOP_ADVLOCK
- advisory record locking
SYNOPSIS
#include <sys/param.h>int
VOP_ADVLOCK (struct vnode *vp caddr_t id int op struct flock *fl int flags);
DESCRIPTION
The arguments are:
Fa vp
The vnode being manipulated.
Fa id
The id token which is changing the lock.
Fa op
The operation to perform (see
fcntl (2)).
Fa fl
Description of the lock.
Fa 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 .
Index
NAME
SYNOPSIS
DESCRIPTION
RETURN VALUES
SEE ALSO
AUTHORS
