Method uninitialize

python/python3/tornado/process.py:333–338

Removes the ``SIGCHLD`` handler.

(cls)

    @classmethod
    def uninitialize(cls) -> None:
        """Removes the ``SIGCHLD`` handler."""
        if not cls._initialized:
            return
        signal.signal(signal.SIGCHLD, cls._old_sigchld)
        cls._initialized = False

    @classmethod
    def _cleanup(cls) -> None: