如果第二次调用，则重置线程计时器 [英] Resetting Threading Timer if it's called a second time

问题描述

我正在尝试创建一个系统，在该系统中，发生触发器的门会打开 5 秒钟，然后再次关闭.我为此使用 Threading.Timer，使用:

I'm trying to create a system where a trigger happens so doors open for 5 seconds, and then close again. I'm using Threading.Timer for this, using:

OpenDoor();
System.Threading.TimerCallback cb = new System.Threading.TimerCallback(OnTimedEvent);
_timer = new System.Threading.Timer(cb, null, 5000, 5000);
...
void OnTimedEvent(object obj)
{
    _timer.Dispose();
    log.DebugFormat("All doors are closed because of timer");
    CloseDoors();
}

当我打开某扇门时，计时器启动.5 秒后，一切再次关闭.

When I open a certain door, the Timer starts. After 5 seconds, everything closes again.

但是当我打开某扇门时，等待 2 秒钟，然后再打开另一扇门，3 秒钟后一切都会关闭.如何重置"计时器?

But when I open a certain door, wait 2 seconds, then open another door, everything closes after 3 seconds. How can I 'reset' the Timer?

推荐答案

不要设置定时器，每次开门就改，比如

Do not dispose the timer, just change it every time you open a door, e.g.

// Trigger again in 5 seconds. Pass -1 as second param to prevent periodic triggering.
_timer.Change(5000, -1); 

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