如何确保所有子线程完成? [英] How to be sure all sub thread finished?

问题描述

大家好，
我有这样的功能

Hi all,
I have a function like that

// initial some thread
Thread td1 = new ...
Thread td2 = new ...
Thread td3 = new ...

// start those thread
td1.Start();
td2.Start();
td3.Start();

// wait for all thread finished.
???? => what is solution for this?

// this action have to wait all threads finish before be started.
doNextAction();

您能告诉我如何确保所有子线程完成吗?
非常感谢，
TuanNM

Could you show me how to be sure all child thread finished?
Thank so much,
TuanNM

推荐答案

请参见 Thread.Join [ ^ ].

在您的示例中:

See Thread.Join[^].

In your example:

td1.Join();
td2.Join();
td3.Join();

您可以使用Thread.Join，但是它将一直阻塞，直到线程确实完成为止.
您可以轮询Thread.IsAlive，但这也不是一个好主意.
我将拥有一个ThreadFinished事件处理程序，在其中检查了所有三个线程的IsAlive属性.完成所有操作后，您可以继续.

You could use Thread.Join, but that will block until the thread is indeed finished.
You could poll Thread.IsAlive, but that isn''t a brilliant idea either.
I would have a ThreadFinished event handler, in which I checked all three threads IsAlive property. When they are all done, you can continue.

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