linux tcp/ip 心跳

import socket
import threading

def handle_client(client_socket):
    while True:
        try:
            data = client_socket.recv(1024)
            if not data:
                break
            print(f"Received: {data.decode()}")
        except ConnectionResetError:
            print("Client disconnected unexpectedly.")
            break
    client_socket.close()

server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind(('0.0.0.0', 12345))
server.listen(5)

while True:
    client_sock, addr = server.accept()
    print(f"Accepted connection from {addr}")
    client_handler = threading.Thread(target=handle_client, args=(client_sock,))
    client_handler.start()

import socket
import time

client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client.connect(('SERVER_IP', 12345))

while True:
    client.send(b"heartbeat")
    time.sleep(10)  # 每10秒发送一次心跳