测试在linux上可以正常gracefully exit

后期AFK了，工作太忙了

output/IOutput.py

@@ -43,6 +43,9 @@ class IOutput():
     def other_output(self, message_type: str, message_raw: bytes):
         ...
 
+    def debug_output(self, message_type: str, message_raw: str):
+        ...
+
     def error_output(self, message_type: str, message_raw: bytes, exception: Exception):
         ...
 

output/manager.py

@@ -122,7 +122,8 @@ class OutputManager():
             self.decode_payload(message)
 
     def terminate(self):
-        self._should_exit.set()
+        if self._should_exit:
+            self._should_exit.set()
         MESSAGE_QUEUE.put(None)
 
         for writer in self._writer: