server.py 文件源码

def _udp_socket(address, backlog=50, reuse_addr=None, family=_socket.AF_INET):
    # backlog argument for compat with tcp_listener
    # pylint:disable=unused-argument

    # we want gevent.socket.socket here
    sock = socket(family=family, type=_socket.SOCK_DGRAM)
    if reuse_addr is not None:
        sock.setsockopt(_socket.SOL_SOCKET, _socket.SO_REUSEADDR, reuse_addr)
    try:
        sock.bind(address)
    except _socket.error as ex:
        strerror = getattr(ex, 'strerror', None)
        if strerror is not None:
            ex.strerror = strerror + ': ' + repr(address)
        raise
    return sock