CODEWITHSUNDEEP
netty
maw
maw

Reputation: 71

How to user wait timers in Netty?

I have a simple app that connects to a server, sends an ACK, then sends a file to be processed. The server sends back an ACK then sends the results of processing the input file, which may happen a few seconds after sending the ACK. If I don't start a timer thread and keep checking whether the response file has come in after the ACK, my main thread exits. I would have expected the receiving socket to remain open until explicitly closed.

I would be grateful if someone could summarize the patterns that apply to using wait timers in Netty.

Upvotes: 0

Views: 382

Answers (1)

forty-two
forty-two

Reputation: 12817

I would suggest using a java.util.concurrent.CountDownLatch. Initialize to 1 (one), and pass it to your channel handler, and wait for it to reach zero in the main thread. When the handler receives the final result it decrements the latch.

Upvotes: 1

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