example-apps/level1.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3
   4 import signal, time
   5
   6 class level1app:
   7     run = True
   8     save = False
   9
  10     def sighandler(self, signum, frame):
  11         if signum == signal.SIGUSR1:
  12             self.save = True
  13         elif signum == signal.SIGTERM:
  14             self.run = False
  15         elif signum == signal.SIGINT:
  16             self.run = False
  17         else:
  18             print "Unknown signal %d received" % signum
  19
  20     def run(self):
  21         signal.signal(signal.SIGUSR1, self.sighandler)
  22         signal.signal(signal.SIGTERM, self.sighandler)
  23         signal.signal(signal.SIGINT, self.sighandler)
  24
  25         print "Waiting for signals..."
  26
  27         while self.run:
  28             if self.save:
  29                 print "Save"
  30                 self.save = False
  31             time.sleep(0.1)
  32
  33         print "Exit"
  34
  35 level1app().run()