socket_options.py 文件源码

def __init__(self, **kwargs):
        socket_options = kwargs.pop('socket_options',
                                    SocketOptionsAdapter.default_options)
        idle = kwargs.pop('idle', 60)
        interval = kwargs.pop('interval', 20)
        count = kwargs.pop('count', 5)
        socket_options = socket_options + [
            (socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1),
            (socket.IPPROTO_TCP, socket.TCP_KEEPINTVL, interval),
            (socket.IPPROTO_TCP, socket.TCP_KEEPCNT, count),
        ]

        # NOTE(Ian): Apparently OSX does not have this constant defined, so we
        # set it conditionally.
        if getattr(socket, 'TCP_KEEPIDLE', None) is not None:
            socket_options += [(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE, idle)]

        super(TCPKeepAliveAdapter, self).__init__(
            socket_options=socket_options, **kwargs
        )