(let [c (async/chan 10)]
  (println @(.-closed c))
  (async/close! c)
  (println @(.-closed c)))


And we're done. Sorry for the spam. Last message send in case someone finds
my question via Google.


On Mon, Jan 13, 2014 at 2:11 AM, t x <txrev...@gmail.com> wrote:

> Is there anyway, to "pierce the deftype"
>
>
> https://github.com/clojure/core.async/blob/master/src/main/clojure/clojure/core/async/impl/channels.clj#L31
>
> to read the "closed" field of the ManytoMany Channel?
>
> That's basically all I need to do.
>
>
> On Mon, Jan 13, 2014 at 1:47 AM, t x <txrev...@gmail.com> wrote:
>
>> Hi,
>>
>>   I have the following problem:
>>
>>   I have a set of channels #{ ... }
>>
>>   some of the channels are closed, some of the channels are open
>>
>>   * for the channels that are open, I want to (>! chan msg)
>>
>>   * for the channels that are closed, I want to remove the channel from
>> the hash-set
>>
>>
>> ## Problems:
>>
>> (1) (>! ... ...) always returns nil, regardless of whether the channel is
>> open or closed, and thus useless
>>
>> (2) I could use (<! ... ) to read from the channel to see if it's nil,
>> but then would remove an item from the channel, which I don't want to do
>>
>>
>> ## Question:
>>
>> Thus, without changing the state of the channel, is there a way to see if
>> the channel is open/closed?
>>
>> Thanks!
>>
>
>

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