Update leenkx/blender/lnx/handlers.py

leenkx/blender/lnx/handlers.py

@@ -132,6 +132,7 @@ def always() -> float:
     return 0.5
 
 
+
 def poll_threads() -> float:
     """Polls the thread callback queue and if a thread has finished, it
     is joined with the main thread and the corresponding callback is
@@ -141,19 +142,25 @@ def poll_threads() -> float:
         thread, callback = make.thread_callback_queue.get(block=False)
     except queue.Empty:
         return 0.25
-
+    if thread.is_alive():
-    thread.join()
-
         try:
+            make.thread_callback_queue.put((thread, callback), block=False)
+        except queue.Full:
+            return 0.5
+        return 0.1 
+    else:
+        try:
+            thread.join()
             callback()
         except Exception as e:
             # If there is an exception, we can no longer return the time to
             # the next call to this polling function, so to keep it running
             # we re-register it and then raise the original exception.
+            try:
                 bpy.app.timers.unregister(poll_threads)
+            except ValueError:
+                pass
             bpy.app.timers.register(poll_threads, first_interval=0.01, persistent=True)
-        raise e
-
         # Quickly check if another thread has finished
         return 0.01