minix/servers/vfs/lock.h
2010-05-10 13:26:00 +00:00

12 lines
461 B
C

/* This is the file locking table. Like the filp table, it points to the
* inode table, however, in this case to achieve advisory locking.
*/
EXTERN struct file_lock {
short lock_type; /* F_RDLOCK or F_WRLOCK; 0 means unused slot */
pid_t lock_pid; /* pid of the process holding the lock */
struct vnode *lock_vnode;
off_t lock_first; /* offset of first byte locked */
off_t lock_last; /* offset of last byte locked */
} file_lock[NR_LOCKS];