FileSystemWatcher的一段时间后停止筹款活动 [英] FileSystemWatcher stops raising events after a period of time

问题描述

我们已经建立了一个侦听文件夹与 FileSystemWatcher的，当我们创建处理文件等窗口服务。但几天之后，事件停止工作。

We have built a window service that listens to folders with FileSystemWatcher, when created we process the file and so on. But after couple of days the event stops working.

• 是否有可能，它被垃圾收集器（GC）收集的？


• 是否GC收集它持有类（这是一个单）？


• 我应该使用弱事件？


• 请我有指事件中的错误被注销？

• Is it possible that it being collected by the garbage collector (GC)?
• Does the GC collect it holding class (which is a singleton)?
• Should I use a weak event?
• Do I have a bug that means the event gets unregistered?

我怎么想的问题是，FSW有一个内部缓冲区，当它溢出的错误，采取这种一看的文章的报价代码来解决这个问题。结果
希望这有助于任何人。

What i think the problem is, that FSW has an internal buffer, when it overflows its an error, take a look in this article that offer code to solve this problem.
Hope this help anyone.

推荐答案

一个几件事情来尝试，因为建议的这里：

A couple of things to try, as suggested here:

• 在计时器滴答事件处理程序，做你的Tick事件处理之前，停止计时，并重新启动它退出处理程序


• 之前包装在try / catch块的计时器代码，看看发生了什么


• 阅读的的System.Timers.Timer类的已用事件不会在Windows服务错误描述/修复，看看有没有可以帮助你提高

• In the timer tick event handler, stop your timer before doing your tick event handling, and restart it before exiting the handler
• Wrap your timer code in a try/catch block to see what's happening.
• Read the Elapsed event of the System.Timers.Timer class is not raised in a Windows service bug description/fix and see if that helps you.

在总结：

protected virtual void TimerTick(object sender, EventArgs e)
{
    // stop your timer
    this.timer.Stop();

    try
    {
        // TODO: add event handler specifics
    }
    catch
    {
        // TODO: add some logging to help you see what's going on
    }        

    // restart your timer
    this.timer.Start();
}

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