[Haskell-cafe] Re: Haskell not ready for Foo [was: Re: Hypothetical Haskell job in New York]

[John Van Enk]

> PortNum is specified in network byte order and lacking a function to
convert host->network byte order (hton).
Perhaps this is another argument for my thread from a while back?
http://www.nabble.com/Missing-Network-Functions-td21188779.html


/jve


On Thu, Jan 8, 2009 at 4:37 PM, Bardur Arantsson <spam at scientician.net>wrote:

> Manlio Perillo wrote:
>
>> John Goerzen ha scritto:
>>
>>> On Thu, Jan 08, 2009 at 10:36:32AM -0700, John A. De Goes wrote:
>>> [...]
>>>
>>> On the other hand, I see nothing in Haskell that would prevent its use
>>> for any of your purposes.  There are numerous high-level web
>>> infrastructures already.  Perhaps they are more or less suited to your
>>> needs, but that's a library issue, not a language issue.
>>>
>>
>>
>> The question is not about Haskell language.
>> I think that Haskell is far better than Erlang, and in fact I'm studying
>> Haskell and not Erlang; and one of the reason I choosed Haskell is for its
>> support to concurrency.
>>
>> The problem, IMHO, is with the availability of solid, production ready
>> servers implemented in Haskell, that can be used as case study.
>>
>> The major web framework in Haskell is HAppS, if I'm correct, and yet in
>> the HAppS code I see some things that make me worry about the robustess of
>> the code.
>>
>>  [--snip--]
>
> Indeed. I've been looking for a Haskell HTTP server implementation that can
> actually handle file serving using strictly limited memory (for a simple
> UPnP server, as of yet unreleased) and that also doesn't leak handles like a
> sieve, but I haven't found anything yet. I don't know, maybe my hackage-foo
> is lacking. In the end I just rolled my own implementation using the HTTP
> package for parsing requests and doing all the socket I/O myself using
> low-level primitives. It seemed to be the only way to guarantee reasonable
> resource usage while serving multi-gigabyte files to fickle HTTP clients
> that like to drop connections willy-nilly.
>
> Don't get me wrong -- the socket support is pretty decent, but there are
> also some weird idiosyncrasies, for example requiring that the PortNum is
> specified in network byte order and lacking a function to convert
> host->network byte order (hton).
>
> Oleg's Iteratee does look very interesting though. Maybe I'll have a go at
> trying to use his ideas in my UPnP server.
>
> Cheers,
>
> Bardur Arantsson
>
>
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