Method _check_alive

Lib/multiprocessing/resource_tracker.py:255–264

Check that the pipe has not been closed by sending a probe.

(self)

            self._write(msg)

    def _check_alive(self):
        '''Check that the pipe has not been closed by sending a probe.'''
        try:
            # We cannot use send here as it calls ensure_running, creating
            # a cycle.
            os.write(self._fd, self._make_probe_message())
        except OSError:
            return False
        else:
            return True

    def register(self, name, rtype):
        '''Register name of resource with resource tracker.'''