86 lines
3.3 KiB
Python
Executable File
86 lines
3.3 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: UTF-8 -*-
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# Auto-generated from template. DO NOT EDIT DIRECTLY!
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# Device: 设备UDP示例 (dev3) - UDP Protocol
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import time
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import logging
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import os
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import socket
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import sys
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import subprocess
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# ====== 配置参数（从配置文件读取）======
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TARGET_IP = '192.168.8.9'
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TARGET_PORT = 10080
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LOG_FILE = '/home/smart/pythonPJ/upc_resent/log/crond-dev3.log'
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RESTART_COMMAND = "/usr/bin/python3 /home/smart/pythonPJ/upc_resent/bin/dev3.py &"
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DEVICE_ID = 'dev3'
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# =========================
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ISOTIMEFORMAT = '%Y-%m-%d %X'
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logging.basicConfig(filename=LOG_FILE, filemode="a", level=logging.DEBUG,
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format='%(asctime)s - %(levelname)s - %(message)s', datefmt=ISOTIMEFORMAT)
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def is_udp_port_open(ip, port):
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"""
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检查UDP端口是否可用。
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UDP是无连接的，这里通过检查端口是否被占用或发送测试数据来判断。
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"""
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try:
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# 尝试绑定到该端口，如果成功说明端口未被占用（服务未启动）
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# 如果失败说明端口已被占用（服务正在运行）
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test_sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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test_sock.settimeout(1)
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test_sock.bind((ip, int(port)))
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test_sock.close()
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# 如果绑定成功，说明服务未启动
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print(f"[{DEVICE_ID}] UDP端口 {port} 未被占用，服务可能未运行")
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logging.warning(f"UDP端口 {port} 未被占用，服务可能未运行，尝试重启程序")
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logging.info(f"执行重启命令: {RESTART_COMMAND}")
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os.system(RESTART_COMMAND)
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return False
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except OSError as e:
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# 绑定失败，说明端口已被占用，服务正在运行
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if "Address already in use" in str(e) or "98" in str(e):
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print(f"[{DEVICE_ID}] UDP端口 {port} is open (已被占用，服务运行中)")
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logging.info(f"UDP端口 {port} is open (服务运行中)")
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return True
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else:
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print(f"[{DEVICE_ID}] 检查UDP端口 {port} 时发生错误: {e}")
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logging.error(f"检查UDP端口 {port} 时发生错误: {e}")
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return False
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def check_process_running():
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"""通过进程名检查服务是否正在运行"""
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try:
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# 检查是否有对应设备的Python进程在运行
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cmd = f"ps aux | grep '{DEVICE_ID}.py' | grep -v grep"
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result = subprocess.run(cmd, shell=True, capture_output=True, text=True)
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if result.returncode == 0 and result.stdout.strip():
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print(f"[{DEVICE_ID}] 进程检查: 服务正在运行")
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logging.info(f"进程检查: 服务正在运行")
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return True
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else:
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print(f"[{DEVICE_ID}] 进程检查: 服务未运行")
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logging.warning(f"进程检查: 服务未运行，尝试重启")
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logging.info(f"执行重启命令: {RESTART_COMMAND}")
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os.system(RESTART_COMMAND)
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return False
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except Exception as e:
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print(f"[{DEVICE_ID}] 进程检查失败: {e}")
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logging.error(f"进程检查失败: {e}")
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return False
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if __name__ == '__main__':
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logging.info(f"[{DEVICE_ID}] 启动UDP端口检查程序，检查 {TARGET_IP}:{TARGET_PORT}")
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print(f"[{DEVICE_ID}] 启动UDP端口检查程序，检查 {TARGET_IP}:{TARGET_PORT}")
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# 对于UDP，优先使用进程检查方式
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check_process_running()
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