[Bug 56981] Mouse movement causes huge CPU spikes when using WINEESYNC.

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56981

--- Comment #3 from Rémi Bernon  ---
This might require something like
https://github.com/ValveSoftware/wine/commit/9ceae59cebd111f0fb06d63ad1495ea...,
although I'm not sure it applies cleanly. The problem is that with esync/fsync
and now the shared memory, we don't call anymore into wineserver to clear some
message bits after having waited, and the queue stays signaled.