+1, this is mostly what we resort to.
(defn some-async-func [param-a param-b & [out-chan]]
(let [ch (or out-chan (chan)]
...
)
2014-11-11 8:53 GMT+00:00 Daniel Kersten <[email protected]>:
> You could do both:
>
> Make the channel optional. If it's provided, use that and return it. If
> it's not provided, create a new one and use and return that.
>
> This way the caller gets to decide which they wish to use based on who the
> owner of the channel should be or if the channel should be reused elsewhere.
>
> For example, for a once-off call, creating s new channel may make more
> sense but if the function is called frequently it might make more sense to
> reuse one channel, especially if this channel is used with other plumbing
> like pub/sub or mult which you would otherwise need to set up every time.
>
>
> On Mon, 10 Nov 2014 17:42 Mike Haney <[email protected]> wrote:
>
>> Eric Normand has an interesting article on this here:
>> http://www.lispcast.com/core-async-code-style
>>
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