Thank you again Ben, now it is more clear.

Luca

Il giorno giovedì 27 marzo 2014 16:43:51 UTC+1, Ben Mabey ha scritto:
>
>  If you want or need to block in a go-block then you should use the 
> `thread` macro instead of the `go` macro.  A thread macro block will be ran 
> in a cached thread pool as you seem to be wanting:
>
>
> https://github.com/clojure/core.async/blob/master/src/main/clojure/clojure/core/async.clj#L379
>
> Just note that you will need to use the blocking CSP operator variants, 
> e.g. <!! instead of <!, while inside of `thread`.
>
> -Ben
>
> On 3/27/14, 9:24 AM, icamts wrote:
>  
> Thank you Ben. 
>
>  Can we speculate on a go-off macro? Like in agents send / send-off to 
> have go-off blocks executed by a cached thread pool executor?
>
>  Luca
>
> Il giorno giovedì 27 marzo 2014 16:01:16 UTC+1, Ben Mabey ha scritto: 
>>
>>  I asked Timothy Baldridge about this on IRC when the change was made 
>> that added 42 and this was the reply I got:
>>
>>    we're trying to strike a balance there, we don't want people to do IO 
>> inside a go block, but if they have to we'd don't want it to totally stall 
>> out.
>>
>> Here is the full conversation:
>>
>> http://clojure-log.n01se.net/date/2013-08-29.html#15:45a
>>
>> -Ben
>>
>> On 3/27/14, 8:55 AM, icamts wrote:
>>  
>> Hi all, 
>> quite a funny question. Thread pool size in core.async is twice the 
>> number of processors plus 42.
>>
>>  
>> https://github.com/clojure/core.async/blob/master/src/main/clojure/clojure/core/async/impl/exec/threadpool.clj
>>  
>>
>>  42? The question is:
>>
>>  1) should it be 4 or 2?
>> 2) 42 is the response to life, universe and everything
>> 3) for some technical reason 42 is also a good minimum number for a 
>> thread pool
>>
>>  Luca
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