Merge pull request #1909 from forslund/bugfix/shutdown-precise

Stop hotword engines when reloading

mycroft/client/speech/hotword_factory.py

@@ -61,6 +61,14 @@ class HotWordEngine(object):
     def update(self, chunk):
         pass
 
+    def stop(self):
+        """ Perform any actions needed to shut down the hot word engine.
+
+            This may include things such as unload loaded data or shutdown
+            external processess.
+        """
+        pass
+
 
 class PocketsphinxHotWord(HotWordEngine):
     def __init__(self, key_phrase="hey mycroft", config=None, lang="en-us"):
@@ -222,6 +230,10 @@ class PreciseHotword(HotWordEngine):
             return True
         return False
 
+    def stop(self):
+        if self.runner:
+            self.runner.stop()
+
 
 class SnowboyHotWord(HotWordEngine):
     def __init__(self, key_phrase="hey mycroft", config=None, lang="en-us"):

mycroft/client/speech/listener.py

@@ -344,6 +344,7 @@ class RecognizerLoop(EventEmitter):
             Reload configuration and restart consumer and producer
         """
         self.stop()
+        self.wakeword_recognizer.stop()
         # load config
         self._load_config()
         # restart