Method add_child_handler

Lib/asyncio/unix_events.py:869–872

(self, pid, callback, *args)

    """

    def add_child_handler(self, pid, callback, *args):
        loop = events.get_running_loop()
        pidfd = os.pidfd_open(pid)
        loop._add_reader(pidfd, self._do_wait, pid, pidfd, callback, args)

    def _do_wait(self, pid, pidfd, callback, args):
        loop = events.get_running_loop()