[MacRuby-devel] zlib status

[Laurent Sansonetti]

Hi Eloy,

I would also love to have a ffi-based zlib but we need zlib urgently  
for RubyGems and I don't think our FFI implementation will be ready  
soon. It is still our objective to finish FFI and maybe we can quickly  
rewrite the extension in pure Ruby for the release. The current  
extension is anyway imported from the original Ruby project, we just  
need to tweak it a little bit so that it works with the GC and the new  
ByteString class.

Laurent

On Aug 18, 2009, at 3:13 PM, Eloy Duran wrote:

> Hey Patrick,
>
> How about the getting the ffi zlib implementation to work? Seems to  
> me that it would kill two birds with one stone, i.e. getting FFI in  
> a more usable state and a C backed zlib implementation.
>
> Eloy
>
> On 18 aug 2009, at 23:52, Patrick Thomson wrote:
>
>> Hi everyone,
>>
>> I'm working on porting ext/zlib to MacRuby right now. I took a look  
>> at zliby - though it's certainly nice to have a zlib implementation  
>> in pure Ruby, zliby seems to be kind of dead in the water  
>> (according to its RubyForge page, it hasn't been updated in almost  
>> a year).
>> Additionally, zliby is orders of magnitude slower than ext/zlib  
>> (decompressing a 2MB gzipped MP3 with ext/zlib took 0.064 seconds  
>> with ext/zlib and 73.909 seconds (yes, over a minute) with zliby).
>> Porting the library will take a little while, as for performance  
>> reasons zlib needs to use ByteStrings. So be patient, and it'll be  
>> here before you know it. :-)
>>
>> -- Patrick
>>>> >  We are almost there, Etc, Zlib and Socket are still missing.
>>>> >  Last I heard, Laurent had a "plan" for Zlib, knowing him, it's  
>>>> probably a
>>>> >  great and efficient idea.
>>>> >  Make sure to check with him before starting on that. (running  
>>>> some
>>>> >  benchmarks on zliby wouldn't hurt anyone)
>>>> >
>>>> >  Once function_method will be working again, many more stdlibs  
>>>> should also
>>>> >  be in a better shape (Math, CMath etc..)
>>>> >
>>>> >  There is a lot of work being done, unfortunately not much we  
>>>> can see yet.
>>>> >
>>>> >  - Matt
>>>>
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