V2-202509
This commit is contained in:
tang1219
@@ -0,0 +1,539 @@
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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import os
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import sys
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import time
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import logging
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import signal
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import hashlib
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import subprocess
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from pathlib import Path
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from threading import Thread
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from time import sleep
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# 配置X11环境变量
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os.environ['DISPLAY'] = ':0'
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# os.environ['XAUTHORITY'] = '/home/pi/.Xauthority' # 根据实际情况调整路径
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# 全局变量
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processes = {} # 存储进程对象
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monitor_thread = None # 监控线程
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running = True # 控制循环运行
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isSettings = False
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SettingFlagPath="/tmp/ktouch/setflag"
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apppath="/opt/ktouch"
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display_monitor_process = None # 存储display_monitor进程对象
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# 配置日志
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def setup_logging():
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log_file = os.path.join(apppath, 'touchscreen.log')
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s daemon.py [%(levelname)s] %(message)s',
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handlers=[
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logging.FileHandler(log_file, encoding='utf-8'),
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logging.StreamHandler(sys.stdout)
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]
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)
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return logging.getLogger(__name__)
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logger = setup_logging()
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# 信号处理函数
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def signal_handler(signum, frame):
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global running
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logger.info("Received signal %d, shutting down...", signum)
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running = False
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cleanup()
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def cleanup():
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"""清理函数，停止所有子进程"""
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logger.info("清理子进程")
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for proc_name, proc_info in processes.items():
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try:
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proc = proc_info['process']
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if proc and proc.poll() is None: # 进程还在运行
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proc.terminate()
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try:
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proc.wait(timeout=5)
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except subprocess.TimeoutExpired:
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proc.kill()
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logger.info("关闭了进程: %s", proc_name)
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except Exception as e:
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logger.error("关闭进程失败 %s: %s", proc_name, e)
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processes.clear()
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# 检查display_monitor.py是否在运行
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def check_display_monitor_running():
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"""检查display_monitor.py是否已经在运行"""
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try:
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# 使用pgrep检查进程
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result = subprocess.run(['pgrep', '-f', 'display_monitor.py'],
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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return result.returncode == 0 and len(result.stdout.strip()) > 0
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except Exception as e:
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logger.error("检查display_monitor.py进程状态失败: %s", e)
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return False
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# 启动display_monitor.py
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def start_display_monitor():
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"""启动display_monitor.py脚本"""
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global display_monitor_process
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# 检查脚本是否存在
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display_monitor_script = "/opt/ktouch/display_monitor.py"
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if not os.path.exists(display_monitor_script):
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logger.warning("display_monitor.py脚本不存在: %s", display_monitor_script)
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return False
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# 检查是否已经在运行
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if check_display_monitor_running():
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logger.info("display_monitor.py已经在运行")
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return True
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try:
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# 设置X11环境
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env = os.environ.copy()
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env['DISPLAY'] = ':0'
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# 启动display_monitor.py，使用nohup使其在后台独立运行
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display_monitor_process = subprocess.Popen(
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['nohup', 'python3', display_monitor_script, '&'],
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env=env,
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL,
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preexec_fn=os.setpgrp # 创建新的进程组，使子进程独立
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)
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# 等待一下让进程启动
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time.sleep(2)
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# 检查是否成功启动
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if check_display_monitor_running():
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logger.info("成功启动display_monitor.py (PID: %d)", display_monitor_process.pid)
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return True
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else:
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logger.error("启动display_monitor.py失败")
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return False
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except Exception as e:
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logger.error("启动display_monitor.py时发生错误: %s", e)
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return False
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# 1. 日志文件轮转函数
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def rotate_logs():
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log_files = [os.path.join(apppath,'sub_modules.log'), os.path.join(apppath,'touchscreen.log')]
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max_size = 10 * 1024 * 1024 # 10MB
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max_backups = 7
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for log_file in log_files:
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if os.path.exists(log_file) and os.path.getsize(log_file) > max_size:
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#print(f'文件{log_file}的大小是{os.path.getsize(log_file)}')
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# 删除最旧的备份文件
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oldest_backup = "%s.%d" % (log_file, max_backups)
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if os.path.exists(oldest_backup):
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os.remove(oldest_backup)
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logger.info("清理过早的日志: %s", oldest_backup)
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# 重命名现有备份文件
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for i in range(max_backups-1, 0, -1):
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old_name = "%s.%d" % (log_file, i)
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new_name = "%s.%d" % (log_file, i+1)
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if os.path.exists(old_name):
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os.rename(old_name, new_name)
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# logger.info("Renamed %s to %s", old_name, new_name)
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# 重命名当前日志文件
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os.rename(log_file, "%s.1" % log_file)
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# logger.info("Rotated log file: %s -> %s.1", log_file, log_file)
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# 2. 检查并创建所需文件
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def initialize_files():
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ktouch_dir = Path("/tmp/ktouch")
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files_to_create = [
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"screen.txt",
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"touch.txt",
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"touch_need_update.txt",
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"usbadd.txt",
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"setflag"
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]
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# 创建目录
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if not ktouch_dir.exists():
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ktouch_dir.mkdir()
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logger.info("创建状态缓存目录 /tmp/ktouch ")
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# 创建或初始化文件
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for file_name in files_to_create:
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file_path = ktouch_dir / file_name
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with open(str(file_path), 'w') as f:
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f.write('1')
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logger.info("初始化缓存文件 %s: to 1", file_path)
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# 启动单个后台程序
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def start_process(proc_name, proc_args):
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"""启动单个进程并添加到监控列表"""
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# 设置X11环境
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env = os.environ.copy()
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env['DISPLAY'] = ':0'
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try:
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proc = subprocess.Popen(proc_args, env=env)
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processes[proc_name] = {
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'process': proc,
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'args': proc_args,
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'start_time': time.time(),
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'restart_count': 0
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}
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logger.info("拉起子进程 %s (PID: %d)", proc_name, proc.pid)
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return True
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except Exception as e:
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logger.error("进程启动失败 %s: %s", proc_name, e)
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return False
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# 3. 启动后台程序（添加X11环境支持）
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def start_background_processes():
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process_configs = {
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'screen_ds': ["/opt/ktouch/screen_ds", "/tmp/ktouch/screen.txt"],
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'touch_ds': ["/opt/ktouch/touch_ds", "/tmp/ktouch/touch.txt", "/tmp/ktouch/touch_need_update.txt"],
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'usb_ds': ["/opt/ktouch/usb_ds", "/tmp/ktouch/usbadd.txt"]
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}
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for proc_name, proc_args in process_configs.items():
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start_process(proc_name, proc_args)
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# 停止所有子进程
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def stop_all_processes():
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"""停止所有监控的子进程"""
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logger.info("停止所有子进程")
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for proc_name, proc_info in list(processes.items()):
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try:
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proc = proc_info['process']
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if proc and proc.poll() is None: # 进程还在运行
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proc.terminate()
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try:
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proc.wait(timeout=3)
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logger.info("成功停止进程: %s", proc_name)
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except subprocess.TimeoutExpired:
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proc.kill()
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logger.warning("强制停止进程: %s", proc_name)
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# 从监控列表中移除
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del processes[proc_name]
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except Exception as e:
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logger.error("停止进程失败 %s: %s", proc_name, e)
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# 检查暂停标志文件
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def check_pause_flag():
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"""检查setflag文件，返回是否需要暂停"""
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if not os.path.exists(SettingFlagPath):
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return False
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try:
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with open(SettingFlagPath, 'r') as f:
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content = f.read().strip()
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return content == '1'
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except Exception as e:
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# logger.error("读取setflag文件失败: %s", e)
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return False
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# 进入设置轮空的状态
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def handle_pause_state():
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"""处理暂停和恢复逻辑"""
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global isSettings
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if should_pause and not paused:
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# 进入暂停状态
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logger.info("检测到setflag=1，进入暂停状态")
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paused = True
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stop_all_processes()
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logger.info("已暂停所有监控和子进程")
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elif not should_pause and paused:
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# 恢复运行状态
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logger.info("检测到setflag=0或文件不存在，恢复运行状态")
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paused = False
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# 重新启动后台进程
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start_background_processes()
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logger.info("已恢复所有监控和子进程")
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return paused
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# 监控和重启进程
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def monitor_processes():
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"""监控进程状态，如果进程退出则重启"""
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global running, isSettings
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buff_isSettings = isSettings
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while running:
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try:
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if not isSettings == buff_isSettings:
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# 值变化，开始操作
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if isSettings:
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stop_all_processes()
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else:
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start_background_processes()
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buff_isSettings = isSettings
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if isSettings:
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time.sleep(5)
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continue
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for proc_name, proc_info in list(processes.items()):
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proc = proc_info['process']
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returncode = proc.poll()
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if returncode is not None: # 进程已退出
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logger.warning("进程 %s (PID: %d) 已退出，代码 %d", proc_name, proc.pid, returncode)
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# 限制重启次数，避免无限重启
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proc_info['restart_count'] += 1
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if proc_info['restart_count'] > 128: # 最多重启128次
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logger.error("启动 %s 进程被结束超过128次，决定不再重启。请检查日志文件。", proc_name)
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del processes[proc_name]
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continue
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# 等待一段时间再重启
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time.sleep(2)
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# 重新启动进程
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if start_process(proc_name, proc_info['args']):
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logger.info("重启进程: %s", proc_name)
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else:
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logger.error("重启进程失败: %s", proc_name)
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# 检查是否有进程需要启动（初始启动失败的情况）
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expected_processes = ['screen_ds', 'touch_ds', 'usb_ds']
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for proc_name in expected_processes:
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if proc_name not in processes:
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logger.warning("发现 %s 消失, 准备重新启动", proc_name)
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# 这里需要根据进程名重新构建参数
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if proc_name == 'screen_ds':
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start_process(proc_name, ["/opt/ktouch/screen_ds", "/tmp/ktouch/screen.txt"])
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elif proc_name == 'touch_ds':
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start_process(proc_name, ["/opt/ktouch/touch_ds", "/tmp/ktouch/touchmap.txt", "/tmp/ktouch/touch_need_update.txt"])
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elif proc_name == 'usb_ds':
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start_process(proc_name, ["/opt/ktouch/usb_ds", "/tmp/ktouch/usbadd.txt"])
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time.sleep(5) # 每2秒检查一次进程状态
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except Exception as e:
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logger.error("进程监控出现问题: %s", e)
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time.sleep(5)
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# 4. 执行touch_remap并重置文件（添加X11环境支持）
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def run_touch_remap():
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# 设置X11环境
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env = os.environ.copy()
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env['DISPLAY'] = ':0'
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try:
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# 执行touch_remap程序
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result = subprocess.run(["/opt/ktouch/touch_set", "/tmp/ktouch/touch.txt"], stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True, env=env)
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if result.returncode == 0:
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logger.info("执行映射(touch_set)成功")
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else:
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logger.error("执行映射(touch_set)失败，错误信息为 %d: %s", result.returncode, result.stderr)
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except Exception as e:
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logger.error("无法执行touch_set映射程序！！！！！: %s", e)
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# 重置文件为0
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ktouch_dir = Path("/tmp/ktouch")
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files_to_reset = [
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"touch_need_update.txt",
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"usbadd.txt",
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"setflag"
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]
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for file_name in files_to_reset:
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file_path = ktouch_dir / file_name
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try:
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with open(str(file_path), 'w') as f:
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f.write('0')
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# logger.info("Reset %s to 0", file_path)
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except Exception as e:
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# logger.error("Failed to reset %s: %s", file_path, e)
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pass
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# 5. 监控文件变化
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def monitor_files():
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global isSettings
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# 记录screen.txt的初始状态
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screen_file = "/tmp/ktouch/screen.txt"
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last_screen_content = ""
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# 启动时读取以一下屏幕文件
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if os.path.exists(screen_file):
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with open(screen_file, 'r') as f:
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last_screen_content = f.read().strip()
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logger.info("开始主程序监控")
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buff_mainloop_isSettings = check_pause_flag()
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while running:
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# 检查是否在设置过程中，是的话则暂停循环，并关闭三个子进程
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isSettings = check_pause_flag()
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if not buff_mainloop_isSettings == isSettings:
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logger.info("设置标志变化：%d", isSettings)
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# 变化，如果设置结束则触发一起映射
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if not isSettings:
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run_touch_remap()
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buff_mainloop_isSettings = isSettings
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if isSettings:
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sleep(2)
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continue
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# 检查是否需要执行touch_remap
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need_update = False
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# 检查usbadd.txt和touch_need_update.txt
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for file_name in ["/tmp/ktouch/usbadd.txt", "/tmp/ktouch/touch_need_update.txt"]:
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try:
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with open(file_name, 'r') as f:
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content = f.read().strip()
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if content == '1':
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logger.info("文件 %s 内容变为1，触发重映射", file_name)
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need_update = True
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except Exception as e:
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logger.error("读取文件失败 %s: %s", file_name, e)
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# 检查screen.txt是否发生变化
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try:
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with open(screen_file, 'r') as f:
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current_content = f.read().strip()
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if current_content != last_screen_content:
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logger.info("文件 screen.txt 内容变化，触发重映射")
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need_update = True
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last_screen_content = current_content
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except Exception as e:
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logger.error("读取文件失败 %s: %s", screen_file, e)
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# 如果需要更新，执行touch_remap
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if need_update:
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run_touch_remap()
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# 等待一段时间再次检查
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time.sleep(1)
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# 检查X11环境是否可用
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def check_x11_environment():
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try:
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# 尝试运行一个简单的X11命令来检查环境
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result = subprocess.run(['xset', '-q'], stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True, timeout=5)
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if result.returncode == 0:
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logger.info("X11 environment is available")
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return True
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||||
else:
|
||||
logger.warning("X11 environment check failed")
|
||||
return False
|
||||
except Exception as e:
|
||||
logger.error("Error checking X11 environment: %s", e)
|
||||
return False
|
||||
|
||||
# 主函数
|
||||
def main():
|
||||
global monitor_thread, running
|
||||
has_config_file=True
|
||||
try:
|
||||
# 注册信号处理
|
||||
signal.signal(signal.SIGTERM, signal_handler)
|
||||
signal.signal(signal.SIGINT, signal_handler)
|
||||
logger.info("==============kscreen_remap_daemon 程序启动====================")
|
||||
|
||||
# 检查X11环境
|
||||
x11_try=3
|
||||
while x11_try:
|
||||
if not check_x11_environment():
|
||||
logger.warning("主程序：X11 environment may not be available, 程序将继续运行但无效果")
|
||||
x11_try -= 1
|
||||
sleep(1)
|
||||
else:
|
||||
x11_try = 0
|
||||
|
||||
# 1. 日志轮转
|
||||
rotate_logs()
|
||||
logger.info("主程序：处理日志 OK")
|
||||
|
||||
# 2. 初始化文件
|
||||
initialize_files()
|
||||
logger.info("主程序：初始化和检查文件 OK")
|
||||
|
||||
|
||||
# 2.5 启动屏幕设置的后台监控进程
|
||||
# 检查并启动display_monitor.py(UOS中)
|
||||
if os.path.exists('/etc/os-version'):
|
||||
logger.info("检查并启动display_monitor.py...")
|
||||
if start_display_monitor():
|
||||
logger.info("display_monitor.py启动成功或已在运行")
|
||||
else:
|
||||
logger.warning("display_monitor.py启动失败，但主程序将继续运行")
|
||||
|
||||
# ========如果没有配置文件，则不用运行监控===========
|
||||
if not os.path.exists("/opt/ktouch/config"):
|
||||
logger.info("配置文件不存在, 进入等待模式")
|
||||
has_config_file = False
|
||||
while True:
|
||||
if not running:
|
||||
break
|
||||
time.sleep(5)
|
||||
if os.path.exists("/opt/ktouch/config"):
|
||||
logger.info("配置文件出现, 进行一次映射，然后开始监控")
|
||||
run_touch_remap()
|
||||
break
|
||||
|
||||
|
||||
|
||||
# 3. 启动后台进程
|
||||
start_background_processes()
|
||||
logger.info("主程序：启动子进程 OK")
|
||||
|
||||
# 启动进程监控线程
|
||||
monitor_thread = Thread(target=monitor_processes)
|
||||
monitor_thread.daemon = True
|
||||
monitor_thread.start()
|
||||
logger.info("主程序：启动进程监控 OK")
|
||||
|
||||
sleep(5)
|
||||
# 4. 首次执行touch_remap
|
||||
while True:
|
||||
if os.path.exists("/tmp/ktouch/screen.txt"):
|
||||
break
|
||||
# 如果screen.txt不存在可能引起故障
|
||||
|
||||
run_touch_remap()
|
||||
logger.info("主程序：执行一次映射 OK")
|
||||
|
||||
sleep(2)
|
||||
# 5. 开始监控文件变化
|
||||
logger.info("主程序：开始监控loop")
|
||||
monitor_files()
|
||||
|
||||
|
||||
except Exception as e:
|
||||
logger.error("Unexpected error in main: %s", e)
|
||||
running = False
|
||||
cleanup()
|
||||
sys.exit(1)
|
||||
finally:
|
||||
cleanup()
|
||||
logger.info("Daemon script stopped")
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
Reference in New Issue
Block a user