如何中止任务，例如中止线程(Thread.Abort方法)? [英] How to abort a Task like aborting a Thread (Thread.Abort method)?

问题描述

我们可以像这样终止Thread:

Thread thread = new Thread(SomeMethod);
.
.
.
thread.Abort();

但是我可以通过取消机制以相同的方式中止Task(在.Net 4.0中). 我想立即终止任务.

But can I abort a Task (in .Net 4.0) in the same way not by cancellation mechanism. I want to kill the Task immediately.

推荐答案

1. 您不应使用Thread.Abort()
2. 可以取消任务，但不能中止.

Thread.Abort()方法(严重)不推荐使用.

The Thread.Abort() method is (severely) deprecated.

在停止时，线程和任务都应该配合，否则将有使系统处于不稳定/不确定状态的风险.

Both Threads and Tasks should cooperate when being stopped, otherwise you run the risk of leaving the system in a unstable/undefined state.

如果您确实需要运行一个Process并从外部将其杀死，那么唯一安全的选择是在单独的AppDomain中运行它.

If you do need to run a Process and kill it from the outside, the only safe option is to run it in a separate AppDomain.

此答案是关于.net 3.5及更早版本的.

This answer is about .net 3.5 and earlier.

此后，线程中止处理得到了改进.通过更改最终阻止工作的方式.

Thread-abort handling has been improved since then, a.o. by changing the way finally blocks work.

但是Thread.Abort仍然是可疑的解决方案，您应该始终避免这样做.

But Thread.Abort is still a suspect solution that you should always try to avoid.

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