Method _make_probe_message

Lib/multiprocessing/resource_tracker.py:209–220

Return a probe message.

(self)

            os.close(r)

    def _make_probe_message(self):
        """Return a probe message."""
        if self._use_simple_format:
            return b'PROBE:0:noop\n'
        return (
            json.dumps(
                {"cmd": "PROBE", "rtype": "noop"},
                ensure_ascii=True,
                separators=(",", ":"),
            )
            + "\n"
        ).encode("ascii")

    def _ensure_running_and_write(self, msg=None):
        with self._lock: