Exception in LeapC when closing application

[daniel-mcguinness-ST]

Describe the bug
When closing an application built with the Ultraleap Tracking 7.3.0, LeapC throws an exception.

[Physics::Module] Cleanup current backend.
[Physics::Module] Id: 0xf2b8ea05
Input System module state changed to: ShutdownInProgress.
Input System polling thread stopped.
Input System polling thread exited.
Input System module state changed to: Shutdown.
Exception: System.Threading.ThreadAbortException: Thread was being aborted.
  at (wrapper managed-to-native) LeapInternal.LeapC.PollConnection(intptr,uint,LeapInternal.LEAP_CONNECTION_MESSAGE&)
  at LeapInternal.Connection.processMessages () [0x0005e] in <638f1058d52441a2af5defa3e992ed04>:0 

To Reproduce
This has been tested with Unity 6.3.10f1.

1. Create a new project.
2. Import Ultraleap Tracking 7.3.0.
3. Build and run project.
4. Close application.
5. Application will hang and LeapC exception will be shown in logs.

Expected behavior
Application closes cleanly.

Desktop (please complete the following information):

• OS: Windows 11

[MaxPalmer-UH]

We'll take a look at this, thanks for reporting. Might be a few days.

[daniel-mcguinness-ST]

Thank you! Let me know if there's anymore information I can provide that would help.

[rblenkinsopp]

I'm hoping this pull-request will resolve this issue. The thread was aborting due to a lack of a timeout on the .Join() operation.

@daniel-mcguinness-ST Would you be able to pull this branch and test if it resolves the issue for you?

[daniel-mcguinness-ST]

Thank you, I will test this today!

[daniel-mcguinness-ST]

I'm no longer getting the exception in the log, but I'm still seeing the same behavior where the app hangs for several seconds when exiting.

[rblenkinsopp]

Thank you for testing and sorry it didn't resolve it completely. I'll have to take a more in depth look.