On 07/01/2011 01:10 PM, Philippe Marschall wrote:
> On 06/30/2011 05:37 PM, Norbert Hartl wrote:
>>
>> Am 30.06.2011 um 17:23 schrieb Stéphane Ducasse:
>>
>>>>> Hi guys
>>>>>
>>>>> apparently people get excited by nodeJS and I would like to know the 
>>>>> equivalence of
>>>>>
>>>> What does it mean?
>>>
>>> in Pharo.. how do you have the same: 
>>
>> It depends what is in your head when you wrote this. The code snippet 
>> doesn't tell that much. Registering a Block for execution on request is 
>> probably not what makes you excited about. What is exciting about it is that 
>> javascript is written in a strictly asynchronous manner (event driven) and 
>> that matches perfectly the implementation with asynchronous I/O. Suddenly 
>> you can write programs they way you ever wanted it. And lucky for us 
>> smalltalk itself is event driven so it can go there easily, too. ...
> 
> 
> In theory yes, in pratice no. You need to to async all the way down and
> then all the libraries (DNS, SQL, HTTP, …) need to be rewritten to be async.
> 
> then
>     your
>        code
>            will
>                read
>                    like
>                        this
> 
> and exception handling is impossible. You can make it read like sync
> code again with continuations but you still have to solve the exception
> problem. At that point you have gained what exactly besides being
> trendy? Don't get me wrong, async has it's place but not in user code.
> Node has to be async because it has only a single process and a single
> green thread but we don't.

To illustrate that point:

https://github.com/koush/node/wiki/%22async%22-support-in-node.js

Cheers
Philippe


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