c# - Best way to deal with sleeping in event handlers in a single-threaded API?

Question

I'm using a non-threadsafe event API. wait() is called, and from that call, event handlers are dispatched. I want to be able to, within an event handler, "sleep" for some time. Currently, I have a scheduler that schedules functions to be called at a later time, and have a bit of a hack that lets me use Scheduler.Sleeper(some_ienumerator) as the event handler, so I can yield timespans as a sort of sleep. Is there any better solution? If C# had Ruby-style Fibers, I would be able to make the scheduler have a Sleep() function that I can call, and the sleep stuff could be in a function called by the event handler, rather than the handler directly. Given the lack of easily-usable Fibers, is there anything else I can do?

EDIT FOR CLARIFICATION: I call wait(n) where n is an amount of time, and during that wait call, the API calls the event handlers. The reason I want to "sleep" in some of those handlers is because this is for a game, where after clicking on something, an object might, for instance, glow for a second.

Answer 1

你的问题不是很清楚。问题是“等待”时你想做什么？例如，如果您谈论的是 WinForms GUI 应用程序，那么您可能希望在等待时处理其他事件（这可以使用该Application.DoEvents方法完成），所以也许您可以使用类似的解决方案？

yield return可以在 C# 中使用 iterators (the ) 关键字模拟轻量级协作多线程（可能类似于 Ruby 纤维） 。在 .NET 中执行此类操作的更好方法是使用 F#，您可以使用异步工作流更优雅地执行此类操作。这是一篇演示如何编写单线程 GUI 的文章，您可以在其中“等待”事件发生而不会阻塞：

• 使用 F# 工作流对用户界面进行编程

正如我所说，您可以在 C# 中使用yield return. 这是我的尝试：

• 使用迭代器在 C# 中进行异步编程

另一种基于并发和协调运行时yield return的方法，它有点复杂，但主要是为 C# 设计的。