'Join multiple threads with timeout

I need to join multiple threads with a timeout. Something like Thread.join(long millis) but for multiple threads.

I found some posts about joining multiple threads, but not regarding joining with timeout.

The code I'm changing is:

for (Thread thread : threads) {
    thread.join(units.toMillis(timeout));
}

But this obviously waits for each thread separately having the effect of waiting up to threads.length * timeout. I want to wait up to timeout for all threads altogether.

What would be the right way to do this?

javamultithreading


Solution 1:[1]

Sounds like you're trying to implement a barrier with a timeout. Have you tried this: http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/CyclicBarrier.html

Solution 2:[2]

you can track elapsed time and join on timeout - elapsed, if it's negative, you don't need to wait at all, it's time-outed already

Sources

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Source: Stack Overflow

Solution Source
Solution 1 George
Solution 2 Pavel Niedoba

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