# Unicorn 0.9.0 (experimental release) **URL:** \ **Category:** Ruby\ **Created:** [July 2, 2009, 1:01am UTC](https://www.ruby-forum.com/t/unicorn-0-9-0-experimental-release/171413 "2009-07-02T01:01:41Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![ericw](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/97f17d/32.png) [@ericw](https://www.ruby-forum.com/u/ericw)\ **Post date:** [July 2, 2009, 1:01am UTC](https://www.ruby-forum.com/t/unicorn-0-9-0-experimental-release/171413/1 "2009-07-02T01:01:41Z")
Unicorn is a Rack HTTP server for Unix, fast clients and nothing else[1] We now have support for “Transfer-Encoding: chunked” bodies in requests. Not only that, Rack applications reading input bodies get that data streamed off to the client socket on an as-needed basis. This allows the application to do things like upload progress notification and even tunneling of arbitrary stream protocols via bidirectional chunked encoding. See Unicorn::App::Inetd and examples/git.ru (including the comments) for an example of tunneling the git:// protocol over HTTP. This release also gives applications the ability to respond positively to “Expect: 100-continue” headers before being rerun without closing the socket connection. See Unicorn::App::Inetd for an example of how this is used. This release is NOT recommended for production use. Eric W. (43): http\_request: no need to reset the request http\_request: StringIO is binary for empty bodies (1.9) http\_request: fix typo for 1.9 Transfer-Encoding: chunked streaming input support Unicorn::App::Inetd: reinventing Unix, poorly 🙂 README: update with mailing list info local.mk.sample: publish\_doc gzips all html, js, css Put copyright text in new files, include GPL2 text examples/cat-chunk-proxy: link to proposed curl(1) patch Update TODO Avoid duplicating the “Z” constant Optimize body-less GET/HEAD requests (again) tee\_input: Don’t expose the @rd object as a return value exec\_cgi: small cleanups README: another note about older Sinatra tee\_input: avoid defining a @rd.size method Make TeeInput easier to use test\_upload: add tests for chunked encoding GNUmakefile: more stringent error checking in tests test\_upload: fix ECONNRESET with 1.9 GNUmakefile: allow TRACER= to be specified for tests test\_rails: workaround long-standing 1.9 bug tee\_input: avoid rereading fresh data “Fix” tests that break with stream\_input=false inetd: fix broken constant references configurator: provide stream\_input (true|false) option chunked\_reader: simpler interface http\_request: force BUFFER to be Encoding::BINARY ACK clients on “Expect: 100-continue” header Only send “100 Continue” when no body has been sent http\_request: tighter Transfer-Encoding: “chunked” check Add trailer\_parser for parsing trailers chunked\_reader: Add test for chunk parse failure TeeInput: use only one IO for tempfile trailer\_parser: set keys with “HTTP\_” prefix TrailerParser integration into ChunkedReader Unbind listeners as before stopping workers Retry listen() on EADDRINUSE 5 times ever 500ms Re-add support for non-portable socket options Move “Expect: 100-continue” handling to the app tee\_input: avoid ignoring initial body blob Force streaming input onto apps by default unicorn 0.9.0 - site: [http://unicorn.bogomips.org/](http://unicorn.bogomips.org/) - git: git://git.bogomips.org/unicorn.git - http+git: [http://git.bogomips.org:8080/unicorn.git](http://git.bogomips.org:8080/unicorn.git) [1] - cgit: [Rack HTTP server for Unix and fast clients](http://git.bogomips.org/cgit/unicorn.git/) - list: removed\_email\_address@domain.invalid [1] - Actually, most of the new features in this release should in fact work on non-Unix OSes so they can be adapted for other servers with wider audiences. [2] - This is the git:// protocol tunneled inside a bidirectional “Transfer-Encoding: chunked” request/response using this latest release of Unicorn.