I am seeing some pretty serious crashes with preemptive threads in windows. I have multiple copies of my thread running all in different instances of the same object. Things run fine for a while but eventually I get a runtime error. It happens when I am drawing a picture in both the main thread and in running thread at the same time. But the picture objects are from different instances. Seems like there’s corruption between instances in Windows. Yes, everything is semaphored, but since it’s different instances, the semaphores don’t come into play.
Anyhow, here’s my crash report link:
https://tracker.xojo.com/xojoinc/xojo/-/issues/77761#note_586575
It’s similar to another report with the same issue. In that issue @Rick_Araujo attached an example project showing how to “properly” handle the issue the user was describing. I have taken Rick’s example, and added 5 more instances of the same canvas and thread. In MacOS I can run everything just fine. In windows, as soon as you add the second thread, it crashes. I don’t get the runtime error, it just crashes.
This is pretty significant…
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