<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _batch_entry(self):
 """Entry point for the batcher thread."""

        try:
            while True:
                self._batch_entry_run()
        except:
            self.exc_info = sys.exc_info()
            os.kill(self.pid, signal.SIGUSR1)