Move signal handling to new module

solvable/src/pipe_io_main.py

@@ -1,10 +1,8 @@
 import logging
 from sys import stderr
-from signal import signal, SIGTERM, SIGINT
 
 from tornado.ioloop import IOLoop
 
-from tfw.builtins import EventHandler
 from tfw.builtins import PipeIOEventHandler
 from tfw.config import TFWENV
 from tfw.logging import Log, Logger, LogFormatter, VerboseLogFormatter
@@ -15,6 +13,7 @@ from pipe_io_auxlib import (
         DeployPipeIOEventHandler, IdePipeIOEventHandler,
         FSMPipeIOEventHandler
 )
+from signal_handling import setup_signal_handlers
 
 LOG = logging.getLogger(__name__)
 
@@ -67,12 +66,7 @@ def main():
         '/tmp/tfw_fsm_recv'
     )
 
-    def stop(*_): 
-        EventHandler.stop_all_instances()
-        exit(0)
-    signal(SIGTERM, stop)
-    signal(SIGINT, stop)
-
+    setup_signal_handlers()
     IOLoop.instance().start()