使用JNA本机等待调用检测线程中断（Windows） [英] Detecting thread interruption with JNA native wait call (Windows)

问题描述

我正在尝试编写一些通过JNA执行等待的代码（例如通过调用Kernel32函数WaitForSingleObject），但是如果调用Thread.interrupt（），我也希望等待完成;我假设Java使用类似Event对象的东西来实现中断;有没有办法从Java获取事件，以便在调用WaitForMultipleObjects时使用它？或者，如果线程被中断，我还有其他任何方式可以安排等待吗？

I'm trying to write some code that performs a wait via JNA (e.g. by calling the Kernel32 function WaitForSingleObject), but I'd also like the wait to finish if Thread.interrupt() is called; I assume Java uses something like an Event object to implement interruption; is there any way of getting the Event from Java in order to use it in a call to WaitForMultipleObjects? Or is there any other way I could arrange for my wait to finish if the thread is interrupted?

推荐答案

Java通过NIO支持它并且很少有人知道，这个类是抽象的但是没有问题：

Java supports it via NIO and very few people are aware of, the class in question is abstract but that's no issue:

java.nio.channels.spi.AbstractInterruptibleChannel 。它有3种感兴趣的方法： begin（）和 end（），这些是最终的，加上你有的那个实现：protected abstract void implCloseChannel（）throws IOException
该方法将从线程调用interrupt（）调用，所以要小心。

java.nio.channels.spi.AbstractInterruptibleChannel. It has 3 methods of interest: begin() and end(), those are final, plus that one you have to implement: "protected abstract void implCloseChannel() throws IOException" The method is going to be called from the thread invoking interrupt(), so be careful.

使用非常简单：在输入本机代码之前调用begin，返回时调用end（）。处理implCloseChannel中断。

The use is very simple: call begin before entering the native code and end() upon return. Handling the interruption in implCloseChannel.

快乐编码！

这篇关于使用JNA本机等待调用检测线程中断（Windows）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！