Re: [PATCH v11 0/1] MR7806: winewayland: Implement relative motion accumulator

[Alexandros Frantzis (＠afrantzis)]

On Fri Apr 18 16:47:26 2025 +0000, Etaash Mathamsetty wrote:
> Doesn't it resolve the previous race condition, since the accum value
> will get reset on every init?

It makes the race less likely, but it can still happen if we get a destruction and recreation of relative motion while an event handler is running:

1. Thread A: Entering relative motion handler
2. Thread B: Destroys relative motion
3. Thread B: Creates new relative motion (zeroes accum_x/y)
4. Thread A: Relative motion handler (from now destroyed relative motion) continues, updates accum_x/y.