interface.py 文件源码

def get_simple_socket(self):
        try:
            l = socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM)
        except socket.gaierror:
            log.error("cannot resolve hostname")
            return
        for res in l:
            try:
                s = socket.socket(res[0], socket.SOCK_STREAM)
                s.connect(res[4])
                s.settimeout(2)
                s.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
                return s
            except BaseException as e:
                log.exception('Failed to connect to %s', res)
                continue