This is very helpful.
Initially, I tried:
(let [c (async/chan 2)]
(async/put! c 1)
(async/put! c 1)
(async/put! c 1))
and thought "oh, it's unbounded."
Then, after reading your message, I tried:
(let [c (async/chan 2)]
(doseq [x (range 2048)]
(async/put! c 1)))
and it's clear that it'll throw an exception.
Thanks!
On Wed, Jan 15, 2014 at 2:51 PM, Timothy Baldridge <tbaldri...@gmail.com>wrote:
> Channels consist of 3 "things"
>
> 1) pending put queue
> 2) pending take queue
> 3) buffer
>
> What will happen is that the async/put! will be put into the pending put
> queue and sit there until either the buffer has room, or a take handles the
> put.
>
> These pending operation queues can be seen as unbounded queues, and
> unbounded queues should be considered a bad thing. Therefore there is an
> arbitrary restriction on the size of the pending queues: they are limited
> to no more than 1024 pending puts/takes. In practice this is very rarely a
> limitation, but if it becomes a problem we could make it configurable, we
> just haven't seen a good use case for that yet.
>
> Hope this helps,
>
> Timothy Baldridge
>
>
> On Wed, Jan 15, 2014 at 3:45 PM, t x <txrev...@gmail.com> wrote:
>
>> Hi,
>>
>> Let c be a channel that is neither dropping nor slidding.
>>
>> Now, furthermore, let c be full.
>>
>> Lastly, suppose (async/put! c ...) is executed.
>>
>> Does the clojure async spec provide guarnatees on what happens?
>>
>> Thanks!
>>
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>
>
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