Comments (1)
insolace
commented on July 21, 2024
It looks like another issue references this loop but did not encounter the same bug the we did:
Debugging this further, my suggested timeout code does not actually prevent the application from hanging/crashing. It would seem that having a device reboot after receiving a large sysex payload can create situations where calling midiOutUnprepareHeader hangs, and there's no method in the API to check the validity of the handle or the buffer before calling it.
Our current workaround is to send the firmware, wait for the midi ports to change to confirm that the device has rebooted, and then stop the application with a user dialog/ok that then kills and relaunches the application. Otherwise if we try to send sysex without the kill/relaunch, there's a 50/50 chance that calling midiOutUnprepareHeader will crash the application, even if we delete / recreate the rtmidi object.
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Related Issues (20)
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