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# Objective - Fixes #4610 ## Solution - Replaced all instances of `parking_lot` locks with equivalents from `std::sync`. Acquiring locks within `std::sync` can fail, so `.expect("Lock Poisoned")` statements were added where required. ## Comments In [this comment](https://github.com/bevyengine/bevy/issues/4610#issuecomment-1592407881), the lack of deadlock detection was mentioned as a potential reason to not make this change. From what I can gather, Bevy doesn't appear to be using this functionality within the engine. Unless it was expected that a Bevy consumer was expected to enable and use this functionality, it appears to be a feature lost without consequence. Unfortunately, `cpal` and `wgpu` both still rely on `parking_lot`, leaving it in the dependency graph even after this change. From my basic experimentation, this change doesn't appear to have any performance impacts, positive or negative. I tested this using `bevymark` with 50,000 entities and observed 20ms of frame-time before and after the change. More extensive testing with larger/real projects should probably be done. |
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