kernel/device_manager/devfs.cpp

78 		} dir;
217 scan_for_drivers_if_needed(devfs_vnode* dir)
219 	ASSERT(S_ISDIR(dir->stream.type));
221 	MutexLocker _(dir->stream.u.dir.scan_lock);
223 	if (dir->stream.u.dir.scanned >= scan_mode())
230 	get_device_name(dir, path.LockBuffer(), path.BufferSize());
241 	dir->stream.u.dir.scanned = scan_mode();
250 		mutex_init(&vnode->stream.u.dir.scan_lock, "devfs scan");
251 	vnode->stream.u.dir.dir_head = NULL;
252 	list_init(&vnode->stream.u.dir.cookies);
290 				&& vnode->stream.u.dir.dir_head != NULL)
308 		mutex_destroy(&vnode->stream.u.dir.scan_lock);
320 update_dir_cookies(struct devfs_vnode* dir, struct devfs_vnode* vnode)
325 			&dir->stream.u.dir.cookies, cookie)) != NULL) {
333 devfs_find_in_dir(struct devfs_vnode* dir, const char* path)
337 	if (!S_ISDIR(dir->stream.type))
341 		return dir;
343 		return dir->parent;
345 	for (vnode = dir->stream.u.dir.dir_head; vnode; vnode = vnode->dir_next) {
357 devfs_insert_in_dir(struct devfs_vnode* dir, struct devfs_vnode* vnode,
360 	if (!S_ISDIR(dir->stream.type))
365 	devfs_vnode* node = dir->stream.u.dir.dir_head;
373 		vnode->dir_next = dir->stream.u.dir.dir_head;
374 		dir->stream.u.dir.dir_head = vnode;
381 	vnode->parent = dir;
382 	dir->modification_time = current_timespec();
385 		notify_entry_created(sDeviceFileSystem->id, dir->id, vnode->name,
387 		notify_stat_changed(sDeviceFileSystem->id, get_parent_id(dir), dir->id,
395 devfs_remove_from_dir(struct devfs_vnode* dir, struct devfs_vnode* removeNode,
398 	struct devfs_vnode* vnode = dir->stream.u.dir.dir_head;
404 			update_dir_cookies(dir, vnode);
409 				dir->stream.u.dir.dir_head = vnode->dir_next;
411 			dir->modification_time = current_timespec();
414 				notify_entry_removed(sDeviceFileSystem->id, dir->id, vnode->name,
416 				notify_stat_changed(sDeviceFileSystem->id, get_parent_id(dir),
417 					dir->id, B_STAT_MODIFICATION_TIME);
601 	struct devfs_vnode* dir = fs->root_vnode;
618 		vnode = devfs_find_in_dir(dir, &temp[last]);
622 				dir = vnode;
630 			vnode = devfs_create_vnode(fs, dir, &temp[last]);
639 		publish_node(sDeviceFileSystem, dir, vnode);
642 		dir = vnode;
666 	struct devfs_vnode* dir = fs->root_vnode;
686 		vnode = devfs_find_in_dir(dir, &temp[last]);
690 				// this is a dir we're okay
693 					dir = vnode;
698 			// or we aren't but hit a non-dir node.
703 			vnode = devfs_create_vnode(fs, dir, &temp[last]);
712 			// this is a dir
714 			publish_node(fs, dir, vnode);
723 			*_dir = dir;
728 		dir = vnode;
774 	// the node is now fully valid and we may insert it into the dir
835 	kprintf(" dir next:    %p\n", vnode->dir_next);
838 		kprintf(" dir scanned: %" B_PRId32 "\n", vnode->stream.u.dir.scanned);
841 		devfs_vnode* children = vnode->stream.u.dir.dir_head;
940 	// create a dir stream for it to hold
1002 	struct devfs_vnode* dir = (struct devfs_vnode*)_dir->private_node;
1006 	TRACE(("devfs_lookup: entry dir %p, name '%s'\n", dir, name));
1008 	if (!S_ISDIR(dir->stream.type))
1012 	scan_for_drivers_if_needed(dir);
1017 	vnode = devfs_find_in_dir(dir, name);
1098 		// can't remove node if it's linked to the dir
1099 		panic("devfs_removevnode: vnode %p asked to be removed is present in dir\n", vnode);
1281 	struct devfs_vnode* dir = (struct devfs_vnode*)_dir->private_node;
1283 	struct devfs_vnode* vnode = devfs_find_in_dir(dir, name);
1288 	vnode = devfs_create_vnode(fs, dir, name);
1295 	publish_node(sDeviceFileSystem, dir, vnode);
1322 	cookie->current = vnode->stream.u.dir.dir_head;
1325 	list_add_item(&vnode->stream.u.dir.cookies, cookie);
1343 	list_remove_item(&vnode->stream.u.dir.cookies, cookie);
1374 			nextChildNode = vnode->stream.u.dir.dir_head;
1380 			nextChildNode = vnode->stream.u.dir.dir_head;
1431 	cookie->current = vnode->stream.u.dir.dir_head;