bunnie 5f4678ca6a fix concurrency issue in predictor/redraw loop ... So there's a bit of a nasty bug that arises from the GAM both handling drawing primitives and context swaps. In particular, because the GAM handles both of these in a single thread, context swaps can't block, because the redraws triggered by the context swap would be blocked, causing a deadlock. When the API token for the predictor was introduced, this added a blocking operation inside the context swap. This would cause a deadlock under certain conditions. This patch refactors the API token so that it's not a return result of swapping the predictors. Instead, the predictors return the API token as a non-blocking message to the GAM. This API token is correlated with the *GAM* token (not the app token). Present me thanks past me for adding the GAM token, which was as of yet unused, but now, there is a very sensible role for it-- exactly what it was made for, e.g. handling GAM-local API calls without disclosing the application token. Anyways, hopefully this patch puts the race condition to rest, while allowing us to have per-context prediction histories.		2022-06-20 03:05:16 +08:00
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src	fix concurrency issue in predictor/redraw loop	2022-06-20 03:05:16 +08:00
Cargo.toml