code: def on_sigint(self, sig, frame):
          
  
          if self.stop_requested or self.stop_requested_force:
              # signal has already been sent or we force a shutdown.
              # handles the keystroke 2x CTRL+C to force an exit.
              self.stop_requested_force = True
              self.logger.warning('Force stopped: ' + str(sig))
  
              # just kill the process, we don't care about the results
              self.on_force_exit()
              os._exit(1)
              # with force_exit we really close the process, killing it in unknown state
              # self.fail('Force stopped', force_exit=True)
              # return
  
          if self.is_master_process():
              self.logger.warning('Received signal '+str(sig)+'. Send again to force stop. Stopping ...')
          else:
              self.logger.debug("Got child signal " + str(sig))
  
          self.stop_requested = True
  
          # the default SIGINT handle in python is not always installed, so we can't rely on the
          # KeyboardInterrupt exception to be thrown.
          # thread.interrupt_main would call sigint again.
          # the shutdown listener will do the rest like committing rest memory files into Git and closing connections.
          sys.exit(0 if self.in_early_stop else 1)
docs: We got SIGINT signal.