Re: [boost] [ann] Urdl - a library for downloading web content

Subject: Re: [boost] [ann] Urdl - a library for downloading web content
From: Christopher Kohlhoff (chris_at_[hidden])
Date: 2009-06-18 08:30:40

Jose wrote:
>>> * It would be great to clarify why you based the design on a buffered
>>> stream (below are my perceived pros/cons):
>>> Pros
>>> - easy to add support for new protocols with read_until
>>> - easier header parsing
>>> Cons
>>> - increased implementation complexitiy with istreambuf
>>> - Maybe small performance penalty
>> I'm not sure which buffered stream you're referring to here. Can you
>> clarify?
> 
> I refer to the overall design keeping a streambuf vs a state-machine
> just parsing the header in one go.

I'm still not 100% sure which bit you're referring to, but if you mean 
the asio::streambuf usage in http_read_stream, that's just to keep the 
implementation simple. Any overhead there only applies to receiving the 
headers, and isn't incurred once you start downloading the content.

Cheers,
Chris