ChannelCallback::cancel() not called when server delete queue

[OverworkedCriminal]

Hi,

I'm trying to detect unexpected consumer cancellations.
Based on https://www.rabbitmq.com/consumer-cancel.html
ChannelCallback::cancel() seems to be the best for this, but I can't make it work.

I tried doing something like this:

1. open connection
2. register connection callback
3. open channel
4. register channel callback
5. declare queue
6. channel.basic_consume(...)
7. remove queue using rabbitmqctl

But ChannelCallback::cancel() was not called.

Did I miss some configuration?

Probable cause

I've read here https://www.rabbitmq.com/connections.html#capabilities
that this extension (consumer_cancel_notify) needs to be present in client capabilities, otherwise RabbitMQ does not send any notification.

I modified Connection::open() to check if it would help, and it did.

versions:
Rust: 1.73
amqprs: 1.5.0

[lukebakken]

Thank you - good job investigating this issue!

@OverworkedCriminal - feel free to open a pull request with your change and, ideally, with a test.

[OverworkedCriminal]

I opened pull request #113 (not sure how to link it to this issue)
I'll see if i can write test for it

[lukebakken]

@OverworkedCriminal thank you!