WIP seems to work. Needs some final testing in eyetracking test map, then...

WIP seems to work. Needs some final testing in eyetracking test map, then removal of debugging functions

Source/StudyFrameworkPlugin/Private/GazeTracking/SFGazeTracker.cpp

@@ -27,16 +27,19 @@ bool USFGazeTracker::Tick(float DeltaTime)
 #ifdef WITH_SRANIPAL
 		bIsAsyncEyeTrackingTaskRunning = true;
 		ViveSR::anipal::Eye::EyeData_v2 TempEyeData;
-		AsyncTask(ENamedThreads::AnyThread, [TempEyeDataAddr = &TempEyeData, SranipalEyeData = MoveTemp(SranipalEyeData), bIsAsyncEyeTrackingTaskRunning = MoveTemp(bIsAsyncEyeTrackingTaskRunning), bDataLogged = MoveTemp(bDataLogged)]()
+		//transfer 'this' into the function in order to have access to the boolean member variables in the nested GameThread-async task
+		AsyncTask(ENamedThreads::AnyThread, [this]()
 			{
-				int Result = ViveSR::anipal::Eye::GetEyeData_v2(TempEyeDataAddr);
-
-				AsyncTask(ENamedThreads::GameThread, [TempEyeDataAddr =TempEyeDataAddr, SranipalEyeData, bIsAsyncEyeTrackingTaskRunning, bDataLogged, Result]() mutable
+				ViveSR::anipal::Eye::EyeData_v2 LocalEyeData;
+				int Result = ViveSR::anipal::Eye::GetEyeData_v2(&LocalEyeData);
+				// Set member variables from GameThread to avoid race conditions
+				AsyncTask(ENamedThreads::GameThread, [this, LocalEyeData =MoveTemp(LocalEyeData), Result]() mutable
 					{
-						SranipalEyeData = *TempEyeDataAddr;
+						//UE_LOG(LogTemp, Warning, TEXT("Tried to get EyeData, Result: %d"), Result);
+						SranipalEyeData = LocalEyeData;
 						bDataLogged = false;
 						bIsAsyncEyeTrackingTaskRunning = false;
-						UE_LOG(LogTemp, Warning, TEXT("Tried to get EyeData, Result: %d"), Result);
+						//UE_LOG(LogTemp, Warning, TEXT("finished async task"));
 					});
 	
 			});