Hi Patrick,

A similar question has been asked in the Aleph mailing list, and you can 
see my answer there: 
https://groups.google.com/forum/#!topic/aleph-lib/SIO9Z8d3tdo.  For future 
reference, you're more likely to get my attention, or the attention of 
someone else who can answer your question, if you post it there.

Zach

On Thursday, July 11, 2013 12:21:20 PM UTC-7, P Martin wrote:
>
> Hi there,
>
> I am working on an application using Lamina where I register several 
> callbacks on a channel with receive-all. At some point in the application, 
> I want to cancel all current callbacks. When this occurs the channel 
> appears to close. Why does this happen? Is this a safety feature? For 
> example:
>
> (def test-channel (channel))
> (def cb1 (receive-all test-channel #(println %)))
> (def cb2 (receive-all test-channel #(println % " two!")))
>
> ... some time later
>
> (cancel-callback test-channel cb1)
> (cancel-callback test-channel cb2)
>
> (enqueue test-channel "something")
> >> :lamina/closed!
>
> Thanks!
> Patrick
>

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