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file_manager: don't emit events when a node is processing metadata 

When a folder is copied processing can take several minutes, depending on the size and number of gcode files in the
path.  Suppress all file events on a node until processing
is complete.

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>
This commit is contained in:
Eric Callahan 2021-11-24 17:14:38 -05:00 committed by Eric Callahan
parent b3d2307d36
commit cfa5f4a432
1 changed files with 27 additions and 5 deletions
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32
moonraker/components/file_manager/file_manager.py
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@ -736,6 +736,7 @@ class InotifyNode:
self.pending_node_events: Dict[str, asyncio.Handle] = {}
self.pending_deleted_children: Set[Tuple[str, bool]] = set()
self.pending_file_events: Dict[str, str] = {}
self.is_processing_metadata = False
async def _finish_create_node(self) -> None:
# Finish a node's creation. All children that were created
@ -748,10 +749,12 @@ class InotifyNode:
node_path = self.get_path()
root = self.get_root()
# Scan child nodes for unwatched directories and metadata
self.is_processing_metadata = True
mevts: List[asyncio.Event] = self.scan_node()
if mevts:
mfuts = [e.wait() for e in mevts]
await asyncio.gather(*mfuts)
self.is_processing_metadata = False
self.ihdlr.log_nodes()
self.ihdlr.notify_filelist_changed(
"create_dir", root, node_path)
@ -836,6 +839,10 @@ class InotifyNode:
if evt_name is None:
logging.info(f"Invalid file write event: {file_name}")
return
if self.is_processing():
logging.debug("Metadata is processing, suppressing write "
f"event: {file_name}")
return
pending_node = self.search_pending_event("create_node")
if pending_node is not None:
# if this event was generated as a result of a created parent
@ -902,6 +909,11 @@ class InotifyNode:
def get_root(self) -> str:
return self.parent_node.get_root()
def is_processing(self) -> bool:
if self.is_processing_metadata:
return True
return self.parent_node.is_processing()
def add_event(self, evt_name: str, timeout: float) -> None:
if evt_name in self.pending_node_events:
self.reset_event(evt_name, timeout)
@ -963,6 +975,9 @@ class InotifyRootNode(InotifyNode):
return self
return None
def is_processing(self) -> bool:
return self.is_processing_metadata
class NotifySyncLock:
def __init__(self, dest_path: str) -> None:
self.wait_fut: Optional[asyncio.Future] = None
@ -1281,6 +1296,8 @@ class INotifyHandler:
logging.debug(f"Inotify file move to: {root}, "
f"{node_path}, {evt.name}")
moved_evt = self.pending_moves.pop(evt.cookie, None)
# Don't emit file events if the node is processing metadata
can_notify = not node.is_processing()
if moved_evt is not None:
# Moved from a currently watched directory
prev_parent, prev_name, hdl = moved_evt
@ -1293,15 +1310,20 @@ class INotifyHandler:
# Unable to move, metadata needs parsing
mevt = self.parse_gcode_metadata(file_path)
await mevt.wait()
self.notify_filelist_changed(
"move_file", root, file_path,
prev_root, prev_path)
if can_notify:
self.notify_filelist_changed(
"move_file", root, file_path,
prev_root, prev_path)
else:
if root == "gcodes":
mevt = self.parse_gcode_metadata(file_path)
await mevt.wait()
self.notify_filelist_changed(
"create_file", root, file_path)
if can_notify:
self.notify_filelist_changed(
"create_file", root, file_path)
if not can_notify:
logging.debug("Metadata is processing, suppressing move "
f"notification: {file_path}")
elif evt.mask & iFlags.MODIFY:
node.schedule_file_event(evt.name, "modify_file")
elif evt.mask & iFlags.CLOSE_WRITE: