fix multiprocessing

+ remove global locks

manage.py

@@ -6,9 +6,10 @@ import logging
 import os
 import psutil
 import waitress
-import bjoern
+# import bjoern
 import mimetypes
 import setproctitle
+import multiprocessing
 
 from flask_jwt_extended import (
     create_access_token,
@@ -229,6 +230,7 @@ def print_memory_usage(response: Response):
     return response
 
 if __name__ == "__main__":
+    multiprocessing.freeze_support()
     load_into_mem()
     run_swingmusic()
     # TrackStore.export()
@@ -237,13 +239,13 @@ if __name__ == "__main__":
     host = FLASKVARS.get_flask_host()
     port = FLASKVARS.get_flask_port()
 
-    # waitress.serve(
-    #     app,
-    #     host=host,
-    #     port=port,
-    #     threads=100,
-    #     ipv6=True,
-    #     ipv4=True,
-    # )
+    waitress.serve(
+        app,
+        host=host,
+        port=port,
+        threads=100,
+        ipv6=True,
+        ipv4=True,
+    )
     # app.run(host=host, port=port, debug=False)
-    bjoern.run(app, host, port)
+    # bjoern.run(app, host, port)