Hello 👋 How do I check if a channel has

Question

Hello 👋 How do I check if a channel has

some value?

I don’t want to block the channel. I just want to see if some value is coming in.

If yes then I’ll receive (block) and get it. Otherwise I’ll send a value to it; signalling that some other goroutine is done.

I’ve tried using select for this but I think I’m using it wrong.

Trying two sync two goroutines here. Want to show progress of A if B is done first to indicate that A is still working.

Please advise.

0

01.09.2023

2 ответов

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Akshit

You might have the XY problem. If you want to signal that some other goroutine did the work, use an atomic bool and check its value.

0

01.09.2023

Sebastian · Accepted Answer

Sebastian

Channels are for communication data. if an channel is non-empty, this means that nobody worked on the content. For signaling that the sender is done, you can close the channel. Like with maps you can also get an bool from a channel.

0

01.09.2023

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Hello 👋 How do I check if a channel has

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