administrator/frigate
1
0
Fork 0
mirror of https://github.com/blakeblackshear/frigate.git synced 2026-06-21 03:41:55 +03:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

use setdefault when adding a new camera

Browse Source 
Multiple subscribers in the same process each unpickle the ZMQ payload independently and would otherwise write divergent Python objects to the shared cameras dict — leaving long-lived references (e.g. CameraState.camera_config) pointing at a copy that subsequent in-place mutations like apply_section_update can never reach. setdefault collapses everyone onto the first writer's object so attribute mutations propagate to every consumer in this process.
This commit is contained in:
Josh Hawkins 2026-05-22 08:40:15 -05:00
parent 50dee829cf
commit a4868184d4
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
frigate/config/camera/updater.py
View File

@ -84,8 +84,8 @@ class CameraConfigUpdateSubscriber:
self, camera: str, update_type: CameraConfigUpdateEnum, updated_config: Any
) -> None:
if update_type == CameraConfigUpdateEnum.add:
self.config.cameras[camera] = updated_config
self.camera_configs[camera] = updated_config
shared = self.config.cameras.setdefault(camera, updated_config)
self.camera_configs[camera] = shared
return
elif update_type == CameraConfigUpdateEnum.remove:
self.config.cameras.pop(camera, None)