[Pharo-project] Ocean (was Re: Less plugins, more Smalltalk code! (was: Re: Pharo 1.1.1 OneClickCogVm))

Michael Roberts mike at mjr104.co.uk
Tue Oct 5 18:49:27 EDT 2010


regarding streaming frameworks, has anyone looked at
http://code.google.com/p/xtreams/ ? the podcasts on it sounded
interesting.

cheers,
Mike

On Tue, Oct 5, 2010 at 5:02 PM, Stéphane Ducasse
<stephane.ducasse at inria.fr> wrote:
>>>>
>>>>> Noury,
>>>>>
>>>>> One of the other aspects that I find important is elementary efficiency.
>>>>>
>>>>> A lot of stream related code in Smalltalk is not efficient, the actual data is copied around like crazy, turning it from a stream to a collection and then back into a stream multiple times. For Zinc HTTP Components I made a lot of effort to make it possible to read data from a socket stream in true streaming fashion (instead of just returning a byte array). Now, the idea was then that for example JPEGReadWriter>>#nextImage would work transparaently on that raw stream. Sadly, the code in JPEGReadWriter and friends just reads everything into an array before it starts to work !
>>>>>
>>>>> Doing a #nextPutAll: <some byte array> should really try never to copy the array. Similary, a #next: <count> into: <some byte array> should similary write directly into the given array. What I see in the current SocketStream is <censored/> ;-)
>>>>
>>>> This is why we implemented our own SocketStream in PostgresV3.
>>>
>>> what is the license?
>>
>> It's MIT, but it's not a general purpose SocketStream.
> sniff
>
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