Python socket.sendto方法代码示例

# 需要导入模块: from socket import socket [as 别名]
# 或者: from socket.socket import sendto [as 别名]
def run_client(server_address, server_port):
	# Ping a UDP pinger server running at the given address
	
	try:
		client_socket = Socket(socket.AF_INET, socket.SOCK_DGRAM)

		# Time out after 1 second
		client_socket.settimeout(1.0)

		print("Pinging", str(server_address), "on port", server_port)

		for i in range(10):
			client_socket.sendto("".encode(), (server_address, server_port))

			try:
				time_start = time.time()
				_, _ = client_socket.recvfrom(1024)
				time_stop = time.time()
			except socket.timeout:
				print("Packet lost")
			else:
				print("RTT(Round trip time): {:.3f}ms".format((time_stop - time_start) * 1000))
	finally:
		client_socket.close()

	return 0

# 需要导入模块: from socket import socket [as 别名]
# 或者: from socket.socket import sendto [as 别名]
def run_client(server_address, server_port):
    """Ping a UDP pinger server running at the given address
    """

    client_socket = Socket(socket.AF_INET, socket.SOCK_DGRAM)

    message = "Ping"

    client_socket.settimeout(1)

    for i in range(0, 10):
        start_time = time.time()
        client_socket.sendto(message, (server_address, server_port))
        try:
            data, server = client_socket.recvfrom(1024)
            end_time = time.time()
            elapsed = end_time - start_time
            print "%s, time: %f." % (data, elapsed)
        except:
            print "TIMEOUT!"
        time.sleep(1)
    return 0

# 需要导入模块: from socket import socket [as 别名]
# 或者: from socket.socket import sendto [as 别名]
def get_rtt(server_address, server_port):
    """Ping a UDP ping server running at the given address
    and show the ping status
    """
    server = (server_address, server_port)
    message = bytes("", 'UTF-8')

    client_socket = Socket(socket.AF_INET, socket.SOCK_DGRAM)
    client_socket.settimeout(1.0)

    try:
        initial_time = current_milli_time()
        client_socket.sendto(message, server)
        client_socket.recvfrom(1024)
        final_time = current_milli_time()

        rtt = final_time - initial_time
    except:
        rtt = -1

    client_socket.close()

    return rtt

# 需要导入模块: from socket import socket [as 别名]
# 或者: from socket.socket import sendto [as 别名]
def run_server(server_port):
    """Run the UDP pinger server
    """

    # Create the server socket (to handle UDP requests using ipv4), make sure
    # it is always closed by using with statement.
    server_socket = Socket(socket.AF_INET, socket.SOCK_DGRAM)

    # The socket stays connected even after this script ends. So in order
    # to allow the immediate reuse of the socket (so that we can kill and
    # re-run the server while debugging) we set the following option. This
    # is potentially dangerous in real code: in rare cases you may get junk
    # data arriving at the socket.
    server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

    # Set the server port
    server_socket.bind(("", server_port))

    # Start accepting ping requests
    print ("Ping server ready on port", server_port)
    while True:
        # Receive message and send one back
        _, client_address = server_socket.recvfrom(1024)
        server_socket.sendto("Pong".encode(), client_address)

    return 0

# 需要导入模块: from socket import socket [as 别名]
# 或者: from socket.socket import sendto [as 别名]
async def udp_writer(s: socket, oqueue: Queue) -> None:
    """Forward packets to the UDP socket."""

    while True:
        peer, data = await oqueue.get()
        try:
            s.sendto(data, peer)
        finally:
            oqueue.task_done()

# 需要导入模块: from socket import socket [as 别名]
# 或者: from socket.socket import sendto [as 别名]
def run_server(server_port):
	# Run UDP pinger server

	try:
		server_socket = Socket(socket.AF_INET, socket.SOCK_DGRAM)
		server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

		server_socket.bind(('', server_port))

		print("Ping server ready on port", server_port)
		while True:
			_, client_address = server_socket.recvfrom(1024)
			server_socket.sendto("".encode(), client_address)
	finally:
		server_socket.close()

	return 0

# 需要导入模块: from socket import socket [as 别名]
# 或者: from socket.socket import sendto [as 别名]
def send_data (sock : socket.socket, addr, data : str):
	ints = [int(data[i : i + 2], 16) for i in range(0, len(data), 2)] # add endian conversion if necessary
	sock.sendto(bytes(ints), addr)