看门狗程序怎么编写

时间:2025-01-22 17:23:22 游戏攻略

编写看门狗程序的方法有多种,下面分别介绍几种常见的方法:

方法一:使用Python的Watchdog库

Python的Watchdog库是一个简单易用的库,用于监控文件系统事件。以下是一个简单的示例,展示如何使用Watchdog监控文件的变化:

```python

from watchdog.observers import Observer

from watchdog.events import FileSystemEventHandler

import time

class MyHandler(FileSystemEventHandler):

def on_created(self, event):

if not event.is_directory:

print(f"呜汪!发现新文件: {event.src_path}")

def on_modified(self, event):

if not event.is_directory:

print(f"汪汪!文件被修改了: {event.src_path}")

def on_deleted(self, event):

if not event.is_directory:

print(f"呜呜!文件被删除了: {event.src_path}")

创建观察者和事件处理器

observer = Observer()

handler = MyHandler()

observer.schedule(handler, path='.', recursive=False)

observer.start()

try:

while True:

time.sleep(1)

except KeyboardInterrupt:

observer.stop()

observer.join()

```

方法二:使用C++编写守护程序

```cpp

include

include

include

include

include

void childProcessFunc() {

int i = 0;

while (true) {

++i;

std::cout << "i: "<< i << ", pid: " << getpid() << ", ppid: " << getppid() << std::endl;

if (i == 10) {

// 子进程主动结束

exit(0);

}

sleep(1);

}

}

void forkChildProcess(int argc, char *argv[]) {

pid_t pid = fork();

if (pid < 0) {

std::cerr << "无法创建子进程" << std::endl;

return;

}

if (pid == 0) {

// 子进程

childProcessFunc();

} else {

// 父进程

int status;

waitpid(pid, &status, 0);

}

}

int main(int argc, char *argv[]) {

if (argc < 2) {

std::cerr << "Usage: " << argv<< " " << std::endl;

return 1;

}

std::string filePath = argv;

forkChildProcess(argc, argv);

return 0;

}

```

方法三:使用Shell脚本

```bash

!/bin/bash

监控的进程名称

process_name="your_process_name"

监控的进程路径

process_path="/path/to/your/program"

无限循环监控进程

while true; do

检查进程是否在运行

if pgrep -x "$process_name" > /dev/null; then

echo "$process_name is running."

else

echo "$process_name is not running. Restarting..."

尝试重新启动进程

"$process_path"

fi

sleep 5

done

```

方法四:使用单片机C语言编写看门狗程序