[ruby-core:38179] Re: Proposal to merge net2-http for Ruby 1.9.4

2011/7/18 Yehuda Katz <[e-mail]>:
> I gave a talk at Ruby Kaigi about my work on Net::HTTP
> (https://github.com/wycats/net-http) and Net::Reactor
> (https://github.com/wycats/net2-reactor), and asked that they be considered
> for inclusion into Ruby. Several people suggested that I send an email to
> this list, so here I am! Since Ruby 1.9.3 is almost finished, I would
> propose to include my improvements to Net::HTTP in Ruby 1.9.4.
> When I started working on improving Net::HTTP, my main goal was to make it
> possible to make a request without reading the response at the same time.
> Since then, I have also worked on a number of other improvements.

Making HTTP similar to IO is interesting idea.
However jumbo patch is hard to incorporate.

> All kinds of requests can support GZip and Inflate
> It is possible to read_nonblock from Net::HTTP response, even if the
> response has Transfer-Encoding: Chunked, keepalive or compression. This
> makes it possible to use Net::HTTP in reactor libraries, instead of writing
> whole new HTTP libraries for each kind of reactor

Event-driven systems should consider all blocking operations read/write/connect.
But your proposal consider only for read.
I think write operation may block if HTTP POST has large data.

> My intent was to retain full backwards compatibility across the API with one
> small change:
>
> When using the block form of the request instance method ( http.request(...)
> { ... } ), the behavior remains the same: the body is read synchronously.
> However, when a block is not passed, the body is not read until it is
> requested. This makes read_nonblock possible. This means that when a block
> is not passed, it is up to the consumer of the API to close the response
> when they are done with it.

Why don't you create a new method for the incompatible behavior?
-- 
Tanaka Akira