#!/usr/bin/env python3

import socket
import fcntl
import array
import termios

server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

server.setsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF, 1500)
server.setsockopt(socket.SOL_SOCKET, socket.SO_RCVBUF, 1500)

server.bind(("0.0.0.0", 54248))
server.listen(32)

while True:
    client, addr = server.accept()
    print("Got connection")
    try:
        with client:
            client.sendall(b"ping")
            print("Message sent")

            buf = array.array("h", [0])
            fcntl.ioctl(client.fileno(), termios.TIOCOUTQ, buf)
            while buf[0] != 0:
                fcntl.ioctl(client.fileno(), termios.TIOCOUTQ, buf)

            print("Received message ack")

            # print(client.recv(24))
    except Exception as e:
        client.close()
        print(e)