RubyForge: Rainbows!: File Release Notes and Changelog

Notes:
Release Name: 4.5.0

Notes:
Rainbows! 4.5.0 - hijacking support

Rainbows! is an HTTP server for sleepy Rack applications.  It is based on
Unicorn, but designed to handle applications that expect long
request/response times and/or slow clients.

* http://rainbows.rubyforge.org/
* rainbows-talk@rubyforge.org
* git://bogomips.org/rainbows.git
* http://rainbows.rubyforge.org/NEWS.atom.xml

Changes:

This release adds hijacking support for Rack 1.5.x users.
See Rack documentation for more information about hijacking.
Lin Jen-Shin also provided the -N/--no-default-middleware option.
Minor packaging cleanups and new HACKING document.

There are also some corner-case bugfixes for *Epoll* users
(sleepy_penguin, these bugs do not affect EM or Cool.io users)
and test suite portability improvements.



Changes:
 .document                                    |  1 +
 .gitignore                                   |  1 +
 Documentation/rainbows.1.txt                 | 12 +++--
 GIT-VERSION-GEN                              | 69 +++++++++++++-------------
 GNUmakefile                                  |  6 ++-
 HACKING                                      | 72 ++++++++++++++++++++++++++++
 bin/rainbows                                 |  5 ++
 lib/rainbows/const.rb                        |  6 +--
 lib/rainbows/coolio/client.rb                | 24 +++++++---
 lib/rainbows/coolio/thread_client.rb         |  2 +
 lib/rainbows/epoll/client.rb                 | 47 +++++++++++++-----
 lib/rainbows/ev_core.rb                      |  9 ++--
 lib/rainbows/event_machine/client.rb         | 13 +++--
 lib/rainbows/process_client.rb               | 10 ++--
 lib/rainbows/response.rb                     | 72 +++++++++++++++++++++-------
 lib/rainbows/revactor/client/methods.rb      |  2 +-
 lib/rainbows/stream_response_epoll.rb        | 49 +++++++++++++------
 lib/rainbows/stream_response_epoll/client.rb | 14 ++++--
 lib/rainbows/writer_thread_pool/client.rb    |  2 +
 lib/rainbows/xepoll/client.rb                |  3 --
 lib/rainbows/xepoll_thread_pool/client.rb    |  2 +-
 lib/rainbows/xepoll_thread_spawn/client.rb   |  2 +-
 rainbows.gemspec                             |  9 ++--
 t/GNUmakefile                                | 13 +++--
 t/bin/utee                                   | 12 -----
 t/byte-range-common.sh                       |  2 +-
 t/hijack.ru                                  | 56 ++++++++++++++++++++++
 t/t0000-simple-http.sh                       | 18 +++----
 t/t0001-unix-http.sh                         | 16 +++----
 t/t0003-reopen-logs.sh                       | 16 +++----
 t/t0004-heartbeat-timeout.sh                 |  6 +--
 t/t0005-large-file-response.sh               |  2 +-
 t/t0010-keepalive-timeout-effective.sh       |  4 +-
 t/t0011-close-on-exec-set.sh                 |  4 +-
 t/t0017-keepalive-timeout-zero.sh            |  4 +-
 t/t0024-pipelined-sendfile-response.sh       |  4 +-
 t/t0027-nil-copy_stream.sh                   |  2 +-
 t/t0030-fast-pipe-response.sh                |  2 +-
 t/t0034-pipelined-pipe-response.sh           |  4 +-
 t/t0035-kgio-pipe-response.sh                |  2 +-
 t/t0040-keepalive_requests-setting.sh        |  8 ++--
 t/t0043-quit-keepalive-disconnect.sh         |  6 +--
 t/t0044-autopush.sh                          |  4 +-
 t/t0045-client_max_header_size.sh            |  4 +-
 t/t0100-rack-input-hammer-chunked.sh         |  8 ++--
 t/t0100-rack-input-hammer-content-length.sh  |  8 ++--
 t/t0106-rack-input-keepalive.sh              | 12 ++---
 t/t0200-async-response.sh                    | 10 ++--
 t/t0202-async-response-one-oh.sh             | 10 ++--
 t/t0300-async_sinatra.sh                     | 10 ++--
 t/t0400-em-async-app.sh                      |  4 +-
 t/t0401-em-async-tailer.sh                   |  4 +-
 t/t0402-async-keepalive.sh                   | 46 +++++++++---------
 t/t0500-cramp-streaming.sh                   |  6 +--
 t/t0600-rack-fiber_pool.sh                   |  2 +-
 t/t0700-app-deferred.sh                      |  4 +-
 t/t0800-rack-hijack.sh                       | 27 +++++++++++
 t/t9000-rack-app-pool.sh                     |  6 +--
 t/t9001-sendfile-to-path.sh                  |  2 +-
 t/t9100-thread-timeout.sh                    |  2 +-
 t/t9101-thread-timeout-threshold.sh          |  2 +-
 t/test-lib.sh                                | 15 ++++++
 t/test_isolate.rb                            |  7 +--
 63 files changed, 548 insertions(+), 258 deletions(-)

commit 4be3e386118969345ee5c94049efa7faae338e4d
Author: Eric Wong 
Date:   Wed Feb 27 10:25:21 2013 +0000

    Rainbows! 4.5.0 - hijacking support
    
    This release adds hijacking support for Rack 1.5.x users.
    See Rack documentation for more information about hijacking.
    Lin Jen-Shin also provided the -N/--no-default-middleware option.
    Minor packaging cleanups and new HACKING document.
    
    There are also some corner-case bugfixes for *Epoll* users
    (sleepy_penguin, these bugs do not affect EM or Cool.io users)
    and test suite portability improvements.

commit 85e228de580f2ffff0025695a523349cef79d9c7
Author: Eric Wong 
Date:   Tue Feb 26 21:16:27 2013 +0000

    manpage: update middleware-related documentation
    
    -N/--no-default-middleware needs a corresponding manpage entry.
    
    Additionally, the Rack::Chunked/ContentLength middleware comment
    is out-of-date as of unicorn v4.1.0

commit 1bdb4eda0d868223bd6b3d92db4545a02f5e14f9
Author: Eric Wong 
Date:   Tue Feb 26 21:02:34 2013 +0000

    epoll/*: remove user-space array as active queue
    
    This prevents pathological starvation cases where the user-space
    ready-list can be repopulated infinitely.  With EPOLLONESHOT,
    epoll itself may be used for this task (at a slightly higher
    cost) by enabling read/write checks, as the epoll ready-list
    preserves event ordering when used with EPOLLONESHOT.

commit 552c4ca305092911ca7613de4b1ba310e5481775
Author: Eric Wong 
Date:   Tue Feb 26 20:07:30 2013 +0000

    xepoll_thread_*/client: EPOLLONESHOT implies EPOLLET
    
    No need to specify both flags for epoll (confirmed by reading
    fs/eventpoll.c in the Linux kernel).

commit 81e555569fc254ed9d592c8734695b22d4f9bc12
Author: Eric Wong 
Date:   Tue Feb 26 08:19:05 2013 +0000

    doc: add HACKING document
    
    Thanks to Alex Wolfe for noticing.

commit f8b5181e744848468bf3bb0fe469795f9113cf4c
Author: Eric Wong 
Date:   Tue Feb 26 07:42:51 2013 +0000

    tests: update checks for Ruby 2.0.0
    
    EventMachine/NeverBlock currently do not build on Ruby 2.0.0

commit 95d6719722f31987c72052b000f67d99989a81c8
Author: Eric Wong 
Date:   Tue Feb 26 03:16:46 2013 +0000

    bump unicorn dependency to 4.6.2+ for Ruby 2.0.0
    
    This ensures we're compatible with the latest stable
    Ruby version.

commit 83a3b49dd3a1f1885ca56e9889ff22aa7b7c6136
Author: Eric Wong 
Date:   Tue Feb 26 03:14:26 2013 +0000

    gemspec: set licenses= attribute
    
    Old versions of RubyGems which could not handle this attribute
    are likely no longer in use.

commit 7dd14b2780b87be58c7afbd03df8d1f7cc3e9575
Author: Eric Wong 
Date:   Sat Feb 16 00:04:53 2013 +0000

    GIT-VERSION-GEN: rewrite to manage RAINBOWS_VERSION const
    
    This DRYs up versioning and makes packages easier to distribute.

commit e166cfe5e8d648b544b1291ec157bd234a425e21
Author: Eric Wong 
Date:   Fri Feb 8 22:45:20 2013 +0000

    hijacking support for Rack 1.5.x users
    
    This requires Rack 1.5.x and unicorn 4.6.0 for hijacking
    support.  Older versions of Rack continue to work fine,
    but we must use unicorn 4.6.0 features to support this.

commit e6faf9e26bcb172026a4984ecadbaa8b6789bcb7
Author: Eric Wong 
Date:   Mon Feb 4 12:39:09 2013 +0000

    tests: "wc -l" portability for *BSDs
    
    On FreeBSD 9.0, "wc -l" emits leading whitespace, so
    filter it through tr -d '[:space:]' to eliminate it.

commit f4e3bac180ff01256832f98655636f79b52f9d5b
Author: Eric Wong 
Date:   Fri Jan 25 02:10:05 2013 +0000

    tests: bump version dependencies for Isolate
    
    Most of these test dependencies may be safely bumped.

commit 8a6117a22a7d01eeb5adc63d3152acf435cd3176
Author: Eric Wong 
Date:   Thu Jan 24 23:33:54 2013 +0000

    tests: "wc -c" portability for *BSDs
    
    On FreeBSD 9.0, "wc -c" emits leading whitespace, so
    filter it through tr -d '[:space:]' to eliminate it.

commit 0ba6fc3c30b9cf530faf7fcf5ce7be519ec13fe7
Author: Eric Wong 
Date:   Thu Jan 24 23:13:41 2013 +0000

    tests: replace non-portable "date +%s" with ruby equivalent
    
    "date +%s" is not in POSIX (it is in GNU, and at least FreeBSD
    9.0, possibly earlier).  The Ruby equivalent should be
    sufficiently portable between different Ruby versions.
    
    This change was automated via:
    	perl -i -p -e 's/date \+%s/unix_time/' t/*.sh

commit cbff7b0892148b037581541184364e0e91d2a138
Author: Eric Wong 
Date:   Thu Jan 24 22:59:16 2013 +0000

    tests: remove utee and use tee(1) instead
    
    POSIX already stipulates tee(1) must be unbuffered.  I think my
    decision to use utee was due to my being misled by a bug in
    older curl where -N did not work as advertised (but --no-buffer
    did).

commit a552fb90230eb65c28897398c7786dc9a13446ca
Author: Lin Jen-Shin 
Date:   Tue Jan 29 11:44:06 2013 +0800

    Add -N or --no-default-middleware option.
    
    This would prevent Unicorn (Rainbows) from adding default middleware,
    as if RACK_ENV were always none. (not development nor deployment)
    
    This is implemented in Unicorn, so we only need to update
    the option parser here.
    
    Discussion thread on Unicorn mailing list:
    http://rubyforge.org/pipermail/mongrel-unicorn/2013-January/001675.html
    
    Signed-off-by: Eric Wong 

commit 49f70632e2f4a9b84fd4fced7439d0844fed1bbd
Author: Eric Wong 
Date:   Thu Jan 24 19:47:41 2013 +0000

    epoll: ensure closing of pipelined clients if required
    
    on_read normally relies on the close checking in on_readable,
    but on_deferred_write_complete may be called from on_writable
    instead (bypassing the close check of on_readable).
    
    This affects both Epoll and XEpoll users, but only if they
    were sending responses via body#to_path and triggering
    on_deferred_write_complete.
    
    While we're at it, favor non-recursive want_more instead of
    calling on_readable recursively in ev_write_responses to
    prevent stack growth.