ChangeLog from http://bogomips.org/rainbows.git (v0.97.0..v4.3.1)

   commit 0b955487e44011d80a457618c2e8148c8ec05e05
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Sep 2 02:14:03 2011 +0000
   
       Rainbows! 4.3.1 - small bugfix
       
       This release fixes a potential reentrancy deadlock when
       using the default logger from the Ruby standard library.
   
   commit 71b4507755f2bd279adb14e6cdc90e1380efa247
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Aug 30 16:18:21 2011 -0700
   
       avoid potential Logger deadlock in SIGQUIT and SIGUSR1
       
       If any combination of SIGQUIT and SIGUSR1 are sent to a
       Rainbows! worker in a /very/ short period of time, the Mutex
       used by the default Logger implementation may deadlock since
       Mutex synchronization is not reentrant-safe.
       
       Users of alternative logger implementations (or monkey-patched
       ones) are possibly not affected.  Users of the logger_mp_safe.rb
       monkey-patch distributed[1] with unicorn are not affected.
       
       [1] http://unicorn.bogomips.org/examples/logger_mp_safe.rb
   
   commit 58a09dccfa425811fa3b66e097c38bb303c2aa1e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Aug 20 01:15:30 2011 +0000
   
       Rainbows! 4.3.0 - pull in changes from unicorn 4.1.0
       
       The deprecated Rainbows::HttpResponse class is finally gone
       thanks to Pratik Naik.  Logging of errors is more consistent
       with the changes in unicorn 4.1.0.  There are also minor
       documentation updates.  See the unicorn 4.1.0 release notes
       for more details:
         http://bogomips.org/unicorn.git/tag/?id=v4.1.0
   
   commit b6c07eb14f008361caca6fcc642df60b29ef192c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Aug 20 00:55:56 2011 +0000
   
       bump unicorn dependency version
       
       We want the stricter parser the error log filtering in
       unicorn 4.1.0
   
   commit cd40e197ab6ef6d0baa219497cea7458457f3343
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Aug 20 00:50:52 2011 +0000
   
       TODO: remove splice(2) item
       
       Rainbows! 3.3.0 added the copy_stream Configurator directive
   
   commit d74a4b4520f89ec2dbf539b02dea1f938c63d74c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Aug 20 00:46:28 2011 +0000
   
       rdoc: cleanup and stop depending on :enddoc:
       
       It doesn't seem to work at the top of the file...
   
   commit f782ab61830ee92942abfcca7c7cb2cdd274e69d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Aug 20 00:37:03 2011 +0000
   
       update development wrongdoc dep to 1.6
       
       Hopefully this points more folks to email us.
   
   commit fbc144d57e83dc8ef5d9e653d38f88ef4b74cb62
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Aug 19 23:13:10 2011 +0000
   
       event_machine: update rdoc for new Cramp homepage
       
       Cramp has a homepage and mailing list now, yay!
   
   commit 3b987ec182cbe919646ea1cb9cd903a31bd85d45
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Aug 19 23:10:28 2011 +0000
   
       cramp: update test dependency to version to 0.15
       
       Everything appears to be working...
   
   commit 371fbd9e1e189510c825063770ff4f5ea79bfead
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Aug 19 23:07:59 2011 +0000
   
       t/test_isolate: bump kgio test version
       
       We always try to test with the latest and greatest.
   
   commit ff70afb97c7f41e28b3d3f6df665daeb4d415989
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Aug 16 19:00:37 2011 -0700
   
       more consistent logging for errors
       
       The Unicorn.log_error method exists since 4.0.0
   
   commit 93e06d33193ee9fd4a58275a4909f008b4bcc4dc
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Aug 12 07:53:21 2011 +0000
   
       test_isolate: bump cool.io test version
       
       Everything appears to work as expected under cool.io 1.1.0
   
   commit a8949f91b323cf478f6aa99dc144f672d382e55e
   Author: Pratik Naik <pratiknaik@gmail.com>
   Date:   Fri Aug 5 22:24:21 2011 +0100
   
       Remove deprecated Rainbows::HttpResponse
       
       Acked-by: Eric Wong <normalperson@yhbt.net>
   
   commit 017b95be08a702c9faae1949db9328f7e82c2d8c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Aug 5 23:31:18 2011 +0000
   
       Rainbows! 4.2.0 - Cramp WebSocket updates!
       
       This release includes updates to support WebSockets
       under Cramp 0.14 and later.  This will be the last
       release which supports Cramp 0.13.
       
       There are no changes in this release for non-Cramp
       users.
   
   commit 73a8847fac9939e1b42a471f7537b5f89bd5ca94
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Aug 5 23:17:07 2011 +0000
   
       bump Cramp test dependency to 0.14
   
   commit ab175517f8fd22acada6daa46c89edda080fa6a9
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Aug 5 19:08:12 2011 +0000
   
       event_machine: APP needs to be in the main Client class
       
       Oops, testing against new changes against cramp.git here
   
   commit 7223b868624d19f3421045c2bc5b075bacd83694
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Aug 5 18:44:32 2011 +0000
   
       event_machine: add :em_client_class option
       
       This can allow Cramp (and potentially other libraries)
       to subclass or implement duck-type compatible versions
       of Rainbows::EventMachine::Client.
   
   commit c6bb07a6475f71dc1e2b46b87a34fbbf46c52b5d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Aug 5 18:15:45 2011 +0000
   
       cramp: bump test version to 0.13
       
       cramp was just released a few days ago and all the
       tested pieces seem to work...
   
   commit 8134763f3cc8403ef0e718aa511b192d305a0182
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Jul 30 22:25:31 2011 +0000
   
       Rainbows! 4.1.0 - minor internal cleanups
       
       There are only some minor cleanups in this release and a bump to
       kgio 2.5 to remove the dependency on io/wait.  kgio 2.5 or later
       is now required (kgio 2.6+ will be required in the next
       release).
   
   commit 1e57c4c846ba9a3b736078b860583b0e7dd33d6c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jul 21 23:27:18 2011 +0000
   
       remove tcp_nodelay/tcp_nopush tweaking
       
       Unicorn 4.x already defaults match those of Rainbows!
       to favor lower latency instead of lowered bandwidth
       usage.
   
   commit 175727bc349ec0f7b94b4de936c7e9de1aaffd2d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jul 21 23:17:48 2011 +0000
   
       remove unnecessary io/wait require
       
       kgio 2.5 added kgio_wait_*able methods
   
   commit 19a7c3afcb22af75ac3afc358e96325d00415ace
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jun 29 19:57:05 2011 +0000
   
       Revert "http_server: cap timeout at 32-bit LONG_MAX seconds"
       
       Unicorn (> 4.0.1) already handles this for us,
       not that it affects many people...
       
       This reverts commit 37c376a9253ed62d134cbb4dbc6eaecc6076c77e.
   
   commit c3982b7c043effcfa897086a221567c035603352
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Jun 28 23:32:26 2011 +0000
   
       t0044: do not assume setsockopt() finished
       
       Race conditions abound in the world of concurrency!
   
   commit 65f251070ce9b61a9049cb413fccffdfa11e7a70
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Jun 28 08:17:01 2011 +0000
   
       Fix Fiber* and WriterThread* breakage from removing io/wait
       
       This fixes up breakage introduced in commit
       905f0ff393629ddb4d70e3dc221b016128c47415 to switch to
       kgio for timed, synchronous waiting.
   
   commit 905f0ff393629ddb4d70e3dc221b016128c47415
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Jun 28 07:39:35 2011 +0000
   
       require kgio 2.5 for kgio_wait_readable(timeout)
       
       Since kgio_wait_*able in kgio 2.5 takes an optional timeout
       argument, we no longer have to load the extra "io/wait" module.
       This saves us a small amount of some memory and also removes the
       extra ioctl(FIONREAD) syscall IO#wait enforces.
       
       Like IO#wait in Ruby 1.9.3dev, kgio_wait_readable may use
       ppoll() to wait on high-numbered file descriptors as efficiently
       as it waits on low-numbered descriptors.
   
   commit 9684ed46e78dab1ae787fe135a3cec1c4490ddd6
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Jun 28 07:20:27 2011 +0000
   
       bin/rainbows: release the OptionParser object from stack
       
       No point in keeping it around to eat memory.
   
   commit 37c376a9253ed62d134cbb4dbc6eaecc6076c77e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Jun 27 21:20:42 2011 +0000
   
       http_server: cap timeout at 32-bit LONG_MAX seconds
       
       We can't wait for longer than 68 years.
   
   commit 1f8ebc013e8b0e9a62587fb95a81e8c5f541a9d4
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Jun 27 09:20:37 2011 +0000
   
       Rainbows! 4.0.0 - MOAR concurrency for MOAR COARS
       
       Rainbows! now scales to more than 1024 worker processes without
       special privileges.  To enable this, Rainbows! now depends on
       Unicorn 4.x and thus raindrops[1].
       
       client_max_header_size directive is added to limit per-client
       memory usage in headers.
       
       An experimental StreamResponseEpoll concurrency option now
       exists to buffer outgoing responses without any thread-safe
       dependencies.  Unlike the rest of Rainbows! which works fine
       without nginx, this concurrency option is /only/ supported
       behind nginx, even more strongly so than Unicorn itself.
       non-nginx LAN clients are NOT supported for this.  This relies
       on the sleepy_penguin[2] RubyGem (and Linux).
       
       There are some minor bug fixes and cleanups all around.  See
       "git log v3.4.0.." for details.
       
       [1] http://raindrops.bogomips.org/
       [2] http://bogomips.org/sleepy_penguin/
   
   commit cc74623dddb9d28d7d5a2479aafdb7a754645697
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Jun 27 09:18:39 2011 +0000
   
       bump dependencies (kgio, unicorn, raindrops)
       
       We now rely on Unicorn 4.0.0.  We'll use the latest
       kgio and raindrops versions anyways.
   
   commit 0e9d8ac759f7c5d783f055df0fb5d4f08c68db71
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Jun 27 09:15:24 2011 +0000
   
       remove unused arg in Rainbows::Response.setup
       
       It hasn't been used in a while, but we kept it for
       Zbatery version compatibility.
   
   commit 8c1e3da65d7a709c6578652fa57e5ca0e7a9a459
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jun 22 07:40:03 2011 +0000
   
       epoll/client: properly close on all pipe responses
       
       Some pipe responses can trigger the on_deferred_write_complete
       method without ever re-running the event loop.
       
       This appears to be the result of the occasional t0050 failures.
   
   commit 63aff8f1cffebaeb6320a5f6d2ec8cb9c7d8ea54
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jun 22 07:05:37 2011 +0000
   
       t0050: improve diagnostics for this test
       
       This test seems to fail sometimes with Epoll and XEpoll...
   
   commit cdbec31577cae4fcaa3c4dcd0492d2ab81307fe4
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jun 22 02:25:56 2011 +0000
   
       t/test_isolate: remove unneeded comment
       
       That's been around forever, and we think Rubinius supports
       that...
   
   commit a831f5685ac03f7f0f3d341df89eade6134b55b4
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jun 22 02:25:11 2011 +0000
   
       dev_fd_response: enable under Rubinius
       
       Untested, but it should work nowadays...
   
   commit 6858c79a49a5d25edb6c06ffd131749eb2f23b2b
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jun 22 02:21:58 2011 +0000
   
       Unicorn 4.x resync for ticker
       
       This removes the extra per-process file descriptor and
       replaces it with Raindrops.
   
   commit 51859dfd9b9f11f6cc0af3fc252312b8018a88e2
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jun 22 02:21:33 2011 +0000
   
       t/test_isolate: drop Unicorn test dependency for now
       
       It's already a runtime dependency
   
   commit be9f24aa1392c67294187844a620e3a9974e0948
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jun 15 22:42:49 2011 +0000
   
       remove IO_PURGATORY dependency
       
       We no longer need to put all listeners away since
       Unicorn uses kgio.
   
   commit 281ef555c40cf292809ad10d623d0571fafc790e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Jun 11 06:35:12 2011 +0000
   
       configurator: add client_max_header_size directive
       
       Lowering this will lower worst-case memory usage and mitigate some
       denial-of-service attacks.  This should be larger than
       client_header_buffer_size.
       
       The default value is carried over from Mongrel and Unicorn.
   
   commit 1f3e7b1c7ee89aefdcadd4aebd7b0527baa188a3
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Jun 11 05:46:52 2011 +0000
   
       doc: remove docs for Rainbows::Fiber::* APIs
       
       Do not encourage their use, really.
   
   commit d01c5df960546462e8f5f458131d78689342d6aa
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jun 10 22:39:01 2011 -0700
   
       stream_response_epoll: update documentation
       
       Yes, this concurrency model is our strangest yet.
   
   commit b065cab4fa5ca25302220c20563398a57069ae08
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Jun 11 00:34:42 2011 +0000
   
       remove Rainbows.run method
       
       We can get away with a single stack frame reduction.  Unicorn
       itself has more stack reductions, but Rainbows! is further
       behind in this area.
   
   commit 1468604be898d17c2cf2da519dccd493c58f4282
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jun 10 22:08:04 2011 +0000
   
       ev_core: do not autochunk HTTP/1.0 (and 0.9) responses
       
       Do not assume middlewares/applications are stupid and blindly
       add chunking to responses (we have precedence set by
       Rack::Chunked).
   
   commit 1aa7eb6608d04a21d1143e7ac09e5219a1208123
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jun 10 21:35:48 2011 +0000
   
       ev_core: use add_parse for trailers, too
       
       HttpParser#trailers and #headers are actually the same
       method, so we'll just continue on.
   
   commit 27f54de4b83e20c5d68c6dd225c1d350aeee5cd3
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jun 10 20:27:22 2011 +0000
   
       gemspec: add GPLv3 to commented-out licenses section
       
       Reduces inconsistency.
   
   commit 7bb7c4469fb744135377d68e7c29cde3fbc635dc
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jun 10 02:13:55 2011 +0000
   
       use HttpParser#add_parse API in Unicorn 3.7.0
       
       It's easier-to-use in some cases.
   
   commit 772a5da573a661df6421afa6398b9e4023e77ce4
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jun 9 23:47:37 2011 +0000
   
       tests: more fixes for StreamResponseEpoll
       
       Oops.
   
   commit be467481fe774e60f5a349c6447769f090e57e06
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jun 9 21:29:02 2011 +0000
   
       response: sendfile_range fis for Rack::File in rack 1.3.0
       
       Rack::File already sets Content-Range, so don't repeat work
       and reparse Content-Length.
   
   commit 5bd92111979d968fc9b982f1e529b8044e718f71
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jun 9 21:08:38 2011 +0000
   
       t/t9002: use Rack::Head
       
       We send HEAD requests and expect body-less responses.
       Noticed while running a newer rack version after re-isolating.
   
   commit 879968a88559c434b4f117e86e61ccdb62263b26
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jun 9 21:01:00 2011 +0000
   
       update various RubyGem dependencies
       
       Gotta keep using the latest and greatest.
   
   commit 40edc84784864063a38ba38bf854a2119c243ce4
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jun 9 00:34:00 2011 +0000
   
       stream_response_epoll: our most "special" concurrency option yet
       
       This doesn't use Rainbows::Base so we have no keepalive support
       at all.  This could eventually be an option for streaming
       applications.
   
   commit 54deb6a9a0e868c0958c9ec145e311661ce90e54
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jun 9 00:23:28 2011 +0000
   
       move reopen_worker_logs to base
       
       We may not always use Rainbows! :Base since we don't want
       keepalive/immediate log reopening in some cases.
   
   commit 99244e8e30eded813bd8eaf7f2136a3871bd486c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Jun 6 10:24:05 2011 -0700
   
       doc: remove --sanitize-html for pandoc
       
       pandoc 1.8 no longer supports this, and we don't need it anyways
       since we only generate documentation from our repository.
   
   commit d40aff8c3fb6ecce314897837c28d9400fbf38a8
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue May 31 08:33:04 2011 -0700
   
       xepoll_thread_*: update docs for Linux 3
       
       Linux 3.0.0 is just around the corner and of course newer
       than 2.6.
   
   commit cfe9a6d38533d380112f2b99bea9a1a3664f0395
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 30 21:31:23 2011 +0000
   
       test-lib: enable splice(2) for Linux 3.x
       
       The latest Linux series is now 3.x, not 2.6.x
   
   commit 983722912028f35348c8ff276df48855281be715
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat May 21 03:02:09 2011 +0000
   
       Rainbows 3.4.0 - minor updates and fixes
       
       SIGQUIT (graceful shutdown) now drops idle keepalive clients for
       the concurrency models where maintaining an idle client is
       relatively inexpensive: Coolio, CoolioThreadPool,
       CoolioThreadSpawn, Epoll, EventMachine, XEpoll,
       XEpollThreadPool, XEpollThreadSpawn.
       
       Kgio.autopush now works properly for all multi-threaded
       concurrency models (if you're using :tcp_nopush).
   
   commit e5eda7790806d6d7709d02db04c75f09340e9a24
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat May 21 03:01:50 2011 +0000
   
       pkg.mk: update to the latest version
       
       * locale fix for grep
   
   commit 7bd77ef78055af5d5232d16f00568ce02b947ae0
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri May 20 18:23:50 2011 -0700
   
       use and recommend sleepy_penguin 3.0.1
       
       It's better under 1.9.3 (sleepy_penguin 3.0.1 was bogus)
   
   commit 07cb79c14399a292ae2a50db007180941c758c69
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri May 20 18:23:50 2011 -0700
   
       use and recommend sleepy_penguin 3.0.0
       
       It's better under 1.9.3
   
   commit 9009074ae535438696b706b4d6b8d4c72187c33e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri May 20 18:15:30 2011 -0700
   
       t0044: increase test reliability
   
   commit f83fe5edb79e51616afcf2a9f991cfe153eabd48
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri May 20 15:44:48 2011 -0700
   
       try_defer: enable documentation
       
       It should hopefully give this more visibility even though it's
       an internal feature.
   
   commit 0b9b4edc63c0021e567c68137e1ee7f9e99ddcc5
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri May 20 18:13:21 2011 -0700
   
       xepoll_thread_pool/client: improve autopush support
       
       We need to trigger a recv() to uncork the response.
       This won't affect fairness (much) since all recv()s
       are non-blocking and a successful header parse will
       put us in the back of the queue.
   
   commit a5419a5fd57a231e40b7a3ba48a02cdef15909be
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri May 20 15:30:11 2011 -0700
   
       .gitignore: add tags/TAGS files
       
       Some folks use them.
   
   commit f4b084225b7115efecfbfb2b5d16da1f1da5c39e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri May 20 15:17:21 2011 -0700
   
       add tests for Kgio autopush on Linux
       
       We can support it fully for a subset of concurrency models where
       we have full control over buffering and HTTP/1.1 keepalive
       clients.
   
   commit a396de855e291d27d43454618031432634fe7d37
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri May 20 14:24:14 2011 -0700
   
       add test for SIGQUIT disconnect
       
       This will only be supported for certain concurency models, but
       it's probably good enough.
   
   commit 5d5033afa9052dc0d60e743f07bc694f008182b3
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri May 20 14:22:37 2011 -0700
   
       event_machine: disconnect idle clients at on SIGQUIT
       
       Since it's cheap to maintain keepalive clients with EM, we need
       a way of disconnecting them in a timely fashion on rare SIGQUIT
       events.
   
   commit bba079d8a605b546bc262e80234c3c233a386e44
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri May 20 18:58:04 2011 +0000
   
       client: use kgio_write across the board
       
       This should enable Kgio "autopush" support for ThreadSpawn,
       ThreadPool, XEpollThreadSpawn, and XEpollThreadPool.
       
       (still needs tests)
   
   commit ea6d0eab436c78113f8a61e7fcc34db4117d14c0
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri May 20 09:19:51 2011 +0000
   
       coolio* + *epoll*: drop keepalive clients on SIGQUIT
       
       In concurrency models long keepalive times are cheap (and thus
       more likely to be used), this allows Rainbows! to gracefully
       shut down more quickly.
   
   commit 90af18f6884857704d72fd6b2bb91718aad72117
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu May 19 23:54:59 2011 -0700
   
       epoll/xepoll: more consistent client implementations
       
       There's less logic in the server this way and easier
       to potentially share code this way.
   
   commit 5e4f790847198e1267b2fbd5decfa09e5cc3d618
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue May 17 17:38:12 2011 -0700
   
       doc: recommend io_splice 4.1.1 or later
       
       io_splice 4.1.1 works around issues with socket
       buffers filling up pipe buffers on blocking splice.
       
       See http://lkml.org/lkml/2009/1/13/478 for a better
       explanation.
   
   commit bc4f5510cd0e5ccf85f077cca019bca70309bf01
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 16 14:12:27 2011 -0700
   
       Rainbows! 3.3.0 - doc improvements and more
       
       * improved documentation all around, suggestions/comments to further
         improve documentation is greatly welcome at: rainbows-talk@rubyforge.org
       
       * added GPLv3 option to the license (now (Ruby|GPLv2|GPLv3), though
         Unicorn is still (Ruby|GPLv2) for now)
       
       * added client_header_buffer_size config directive (default 1K)
       
       * small default header buffer size (16K => 1K) to reduce memory usage,
         Rails apps with cookie sessions may want to increase this (~2K)
       
       * all concurrency models default to 50 connections per process
       
       * all concurrency models with a secondary :pool_size parameter also
         default to 50 (threads/fibers/whatever)
       
       * RLIMIT_NOFILE and RLIMIT_NPROC are automatically increased if needed
       
       * Rainbows::ThreadTimeout middleware rewritten, still not recommended,
         lazy people should be using Unicorn anyways :)
       
       * Several experimental Linux-only edge-triggered epoll options:
         XEpollThreadSpawn, XEpollThreadPool, XEpoll, and Epoll.
         The latter two were in previous releases but never announced.
         These require the "sleepy_penguin", "raindrops", and "sendfile" RubyGems
       
       === Deprecations
       
       * Rainbows::Fiber::IO* APIs all deprecated, Rainbows! will avoid
         having any concurrency model-specific APIs in the future and
         also avoid introducing new APIs for applications.
       
       * Fiber-based concurrency models are no longer recommended, they're
         too fragile for most apps, use at your own risk (they'll continue to
         be supported, however).  Linux NPTL + Ruby 1.9 is pretty lightweight
         and will be even lighter in Ruby 1.9.3 if you're careful with stack
         usage in your C extensions.
   
   commit bcd0825fc77a2986aebb3f1f5a653a64faf6a8c5
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 16 21:01:47 2011 +0000
   
       writer_thread_*: fix sendfile detection under Ruby 1.8
       
       I can't wait until I stop supporting Ruby 1.8
   
   commit 912c328ecfccf189239c4ad2bb7863d64342868f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 16 20:42:10 2011 +0000
   
       document RubyGem requirements
       
       Hopefully makes things easier to try out.
   
   commit 46ac7ca9f3e5c7736aa1c9430d2de218e27bf730
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 16 20:32:29 2011 +0000
   
       doc: cleanup rdoc for Rainbows module
       
       The only supported method is Rainbows.sleep in here
   
   commit 362ac7801d4f6ddd85cbafdc7e9118f88089564a
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 16 20:13:00 2011 +0000
   
       use :pool_size for RLIMIT_NPROC with thread pool models
       
       Only needed for Ruby 1.9
   
   commit f9de85b9a35c9f95b390249ea855858c5e4a3ae2
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 16 20:05:12 2011 +0000
   
       more reliable shutdown for epoll concurrency models
       
       Just close the epoll descriptor, since the sleepy_penguin
       epoll_wait wrapper may not return EINTR in the future.
   
   commit 49b60d6f67a94560a802c6ff80c16c92093de877
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 16 19:43:38 2011 +0000
   
       tests: unify checks for copy_stream and threaded app dispatch
       
       This makes things easier to maintain as we add more concurrency
       options.
   
   commit 39f625fff05d457b01f088017f463a86d3b6c626
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 16 19:04:06 2011 +0000
   
       add "copy_stream" config directive
       
       This allows using IO::Splice.copy_stream from the "io_splice"
       RubyGem on recent Linux systems.  This also allows users to
       disable copy_stream usage entirely and use traditional
       response_body.each calls which are compatible with all Rack
       servers (to workaround bugs in IO.copy_stream under 1.9.2-p180).
   
   commit d520222050ce88388ae5e446c63642d79cc9796e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue May 10 16:34:51 2011 -0700
   
       configurator: update user-facing documentation
       
       Finally, we have all methods in configurator and it's
       much easier to document!
   
   commit 95cec890409ac07d51c87ab157fe7e101d6f8432
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue May 10 16:33:07 2011 -0700
   
       max_body: documentation updates
       
       It can't be used as middleware for fully-buffering concurrency
       models.
   
   commit 382d3cabfda9fdd391228d24e8a8d4cb014648b9
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue May 10 15:35:21 2011 -0700
   
       LICENSE: add GPLv3 to license terms
       
       GPLv2 and Ruby-specific terms remain intact, but this means
       we can be combined and redistributed with GPLv3-only software
       (once Unicorn has GPLv3 added to its license).
   
   commit 704f843054f3ca32941d42972a1c7d1b144d06ad
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 9 04:39:54 2011 +0000
   
       configurator: move validation logic over
       
       There's actually no reason we can't have these methods
       in Rainbows::Configurator where it's easier to document
       nowadays.
   
   commit 598525843ee1d120fd9878011ca2b6328c2cf95f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 9 02:24:26 2011 +0000
   
       doc: better document :pool_size options
       
       CoolioThreadPool has had it supported forever, but
       only NeverBlock had it documented.
   
   commit 1e3b7e9bfef992b337a9a113da6c99071dce60e1
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 9 02:15:55 2011 +0000
   
       TODO: misc updates
       
       Some things were never going to get done due to lack of interest
       from users.
   
   commit 87632aac323bd41701900a03dc78bc307fa8229a
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 9 02:13:51 2011 +0000
   
       doc: update comparison and README
       
       Clearly users need to know about more options
   
   commit d0336075a772d040b9fe3100098e1815ce609cb4
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 9 01:57:16 2011 +0000
   
       xepoll_thread_*: add rdoc for users
       
       It's good to describe what they're useful for.
   
   commit a62e9240fffe544d171c87f94946ecf50888a6df
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 9 01:56:46 2011 +0000
   
       xepoll_thread_spawn/client: remove rdoc
       
       It's an internal implementation detail.
   
   commit 6b430295177c4689a6a5d421d575867c5da8ba2b
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 9 01:55:32 2011 +0000
   
       max_body: rdoc updates
       
       speling ficks and less confusing #initialize documentation
   
   commit 9afcdde9a92f817330e4dfd5e1ef77a7bf461253
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 9 00:21:23 2011 +0000
   
       xepoll_thread_pool: add optional :pool_size argument
       
       We're now able to configure the number of threads independently
       of worker_connections.
   
   commit 725adcc6986bc2658d92ea3ebebe61d2b83060ad
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 9 00:17:06 2011 +0000
   
       split out pool_size module
       
       coolio_thread_pool, neverblock both use it, and
       xepoll_thread_pool will support it next, too.
   
   commit 3c1649226d2371ce09d14f3fcce18fec0af1ba02
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 9 00:16:23 2011 +0000
   
       t0041: less confusing skip message
       
       Just the test name is irrelevant
   
   commit 380ef63bc2c8f7b6f1cab7387aa9343bc5720c9c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 9 00:02:51 2011 +0000
   
       add XEpollThreadPool concurrency option
       
       This is probably friendlier on server resources in the worst
       case than XEpollThreadSpawn but may perform worse in the client
       client-visible way, too.
   
   commit df00f2b1028ba95450246c82e468878b6ec903a3
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun May 8 07:54:30 2011 +0000
   
       Revert "epoll: fixes for Ruby 1.9.3dev"
       
       Fixed in kgio 2.4.0 now
       
       This reverts commit a1168e7d2bfe182896f139d051ef099616fd1646.
   
   commit ed869514211a908748f04a881e6fb18a395914ae
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun May 8 07:47:03 2011 +0000
   
       join_threads: simplify thread stoppage check
       
       No need for a string comparison
   
   commit 8af417bbacb285c90a376c55a42fe39a981a328d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun May 8 07:39:38 2011 +0000
   
       require kgio 2.4.0
       
       kgio 2.4.0 has some 1.9.3dev fixes which affect us
   
   commit ec3f871c9a34734b865365a43979a0b459654b05
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun May 8 07:26:55 2011 +0000
   
       epoll_wait: flags argument is unused
       
       We only poll for one event (EPOLLIN/EPOLLOUT) at a time,
       so there's no need to actually check since they're too
       rare.
   
   commit e64e2e0045d63c4edd291839febba978534be652
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun May 8 07:22:36 2011 +0000
   
       xepoll: cleanup acceptor logic
       
       worker_yield is safer than setting a threshold with multiple
       acceptors when thread limits are hit.  Also, avoid sleep +
       Thread#run since it's potentially racy if threads are extremely
       unfairly scheduled.
       
       Same things applied to xepoll_thread_spawn.
   
   commit 07a0bee9dd6f2c366d11284b7e9ab09d66b411e4
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun May 8 04:06:12 2011 +0000
   
       xepoll_thread_spawn: rework acceptor logic
       
       Infinite sleep is too dangerous due to possible race conditions,
       so use worker_yield which is safer and cheaper in the general
       case.  We can also avoid sleeping on new threads by only
       spawning when the client module is included.
   
   commit c543b295ff2108623f3748a141e04e5530d06377
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun May 8 03:58:21 2011 +0000
   
       xepoll_thread_spawn/client: close returns nil
       
       Otherwise pipeline_ready can false positive on us
   
   commit 497ce74310baaa7ac4835b8d6aa76acb40d44b7c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun May 8 01:28:43 2011 +0000
   
       xepoll_thread_spawn: inline needless method
       
       shorter line and 3 lines of code killed!
   
   commit ef9376775b1a6eeae8807160b2b8ea23fbfd3607
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun May 8 01:27:25 2011 +0000
   
       process_client: fix pipeline_ready arity
       
       Not that it's actually used, right now.
   
   commit 3decb4375847b97c117440e5167dbba33d5f33b5
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri May 6 01:04:39 2011 +0000
   
       remove unnecessary variable assignments
   
   commit bcca2d3bc609e9ecaa77ec93bef861b1ddcc01dd
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri May 6 00:52:18 2011 +0000
   
       test_isolate: update to latest raindrops and unicorn
       
       Newer versions should be better
   
   commit 21a1a20223986af8c8962cafe2e0f1eae0dcfd19
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri May 6 00:38:53 2011 +0000
   
       ensure some requires get loaded in master
       
       More sharing, faster startups, and most importantly,
       better error reporting if some things are missing.
   
   commit 0efe7b677b076a32ef54e5f2f0a9861eb1f7f3d9
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu May 5 07:16:48 2011 +0000
   
       http_server: XEpollThreadSpawn sets RLIMIT_NPROC
       
       It *can* have as many threads as it does idle connections.
   
   commit 8fb350e00c1421907cbc36cbf29c499b8ad051e4
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue May 3 01:18:45 2011 +0000
   
       Rainbows! defaults more DRY
       
       We won't forget to reset defaults on SIGHUP anymore.
   
   commit e9a229c639dd6bda08a3fa8ce14af3688dc2ba63
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue May 3 01:15:37 2011 +0000
   
       s/max_bytes/client_max_body_size/ for consistency
       
       Too confusing otherwise...
   
   commit a7f5f17ba2047ef7143465f612007ea81871a79e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue May 3 01:05:11 2011 +0000
   
       add client_header_buffer_size tuning parameter
       
       We're changing our default to 1K buffers to save memory.  This
       should reduce memory usage of idle clients and lower pressure on
       the MRI GC.  Rails applications using session cookies (the
       default) may want to up this to 2K or more.
   
   commit 01381ab4dfeb032c85e72724df889c7aa381aa32
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 2 22:05:52 2011 +0000
   
       rainbows: get rid of MODEL_WORKER_CONNECTIONS constant
       
       Just use regular autoload, now.   Less guesswork.
   
   commit 25c5930988d6deab8f885981fdaf6c1eb12fdf98
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon May 2 08:05:45 2011 -0700
   
       http_server: default all options to 50 connections
       
       pavinging the way for changing MODEL_WORKER_CONNECTIONS
   
   commit ce4f5cd7197fb99ed99399b22cbece1684532f85
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun May 1 01:44:28 2011 +0000
   
       doc: add Sandbox document
       
       Rainbows! is a bit bigger than Unicorn and usually requires
       being sandboxed, too.
   
   commit 8c086f095a2f3be0f71829af9037d99c79604a37
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Apr 30 06:56:47 2011 +0000
   
       lower header buffer sizes for synchronous models
       
       HTTP headers are usually smaller than 4K, so 16K was way too
       much for most users and often caused unnecessary GC runs.
       EventMachine and Coolio models can all share the same initial
       read buffer, so it's less urgent that they get this lowered for
       now...
   
   commit bfb58da95e13f3061feb2c1f284efc80a13ba23c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Apr 30 06:50:17 2011 +0000
   
       xepoll_thread_spawn: lower memory usage
       
       This one actually has a realistic chance of running
       hundreds/thousands of clients, and 32K per-client is
       a huge amount.
   
   commit ca8021d4177e5f7131f88daf6b56402ff39c3a35
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Apr 29 18:14:10 2011 +0000
   
       epoll: fix timeout
       
       Epoll#wait and epoll_wait(2) timeouts are in milliseconds,
       not seconds.  This affects xepoll, too.
   
   commit 73ed28f1863d5ae3048a284e25a918255bdafe8a
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Apr 29 18:11:04 2011 +0000
   
       xepoll_thread_spawn: fix race condition with acceptors
       
       Noticed under 1.8.7
   
   commit aff36865d5e738babdbf36f34fd0693b67bb3d90
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Apr 29 05:45:44 2011 +0000
   
       xepoll_thread_spawn: initial implementation
       
       Whee!  This is going to be awesome.
   
   commit 40cf3eb79054caa4b7d81120a736491aca8259eb
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Apr 28 18:42:46 2011 +0000
   
       document epoll and xepoll
       
       They're probably ready for general use in a very limited
       capacity...
   
   commit 6ea50dd6866a7b4eda5134cb2c8980710285e127
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Apr 26 14:04:26 2011 -0700
   
       doc: stop recommending Fiber* stuff
       
       Too much NIH and too fragile.
   
   commit 5bd08f7bb06367823412bd3410bcb41babd6d57b
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Apr 26 14:00:25 2011 -0700
   
       revactor: remove documentation for internal methods
   
   commit 00b9b46b2a49ab96f74fd21807ee9c93b218bc2d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Apr 26 13:30:28 2011 -0700
   
       revactor: do not recommend, upstream is dormant
   
   commit e3c8152e016fe29f76a996b8802df7158c081db0
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Apr 26 12:56:20 2011 -0700
   
       stream_file: hide internals
       
       No need to expose things that don't need exposing.
   
   commit 012d3e3d1ae9186434efcaa746f25118683fe8b3
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Apr 25 19:44:13 2011 -0700
   
       make all concurrency options use 50 by default
       
       This may change again in the future, but it
       paves the way for simplifying this code...
   
   commit f6471ed9cafe6e65e72fa9486ecdcc4b2f8d1373
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Apr 21 15:38:20 2011 -0700
   
       thread_timeout: annotate as much as possible
       
       This should make code review easier.
   
   commit 63b3b40abf054bce2846bc9e36770a6ed2791a8b
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Apr 9 18:58:23 2011 -0700
   
       increase RLIMIT_NPROC for thread-crazy folks
       
       Might as well, threads are free and cheap on 64-bit
   
   commit 066bbf930d023ecf61ed4af363aebadbce2c51db
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Apr 8 13:38:11 2011 -0700
   
       http_server: attempt to increase RLIMIT_NOFILE
       
       In case people try to do C10K, make life easier for them.
   
   commit e5c4125c348104444714b5111c90016d520461d6
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Apr 21 21:22:06 2011 +0000
   
       thread_timeout: document Thread.pass usage
       
       Thread-switching sometimes takes too long under YARV, so we
       force a switch since the watchdog thread is lower-priority.
   
   commit 71d48a01a7c257dffa22c10781c55deff64037d2
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Apr 21 21:21:13 2011 +0000
   
       join_threads: workaround blocking accept() issues
       
       Should be fixed in 1.9.3 and/or future Kgio...
   
   commit 7f368d2cf9e456e37f1489dc275ed0de007175dd
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Apr 21 06:48:46 2011 +0000
   
       bump dependency to Unicorn 3.6.0
       
       Might as well use the latest and greatest.
   
   commit 15505863ce2080bdf342930530acc35c0d112df1
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Apr 19 04:35:43 2011 +0000
   
       http_server: less hacky loading of concurrency model
       
       Ugh the old way was gross.
   
   commit 367ba00d2f3a4e9a0fa848d076f97f754a9d7cc5
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Apr 11 07:54:50 2011 +0000
   
       t: only enable Revactor tests under 1.9.2 for now
       
       Revactor doesn't seem to work under 1.9.3dev, and Revactor is
       dead upstream.
   
   commit a1168e7d2bfe182896f139d051ef099616fd1646
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Apr 11 07:53:57 2011 +0000
   
       epoll: fixes for Ruby 1.9.3dev
   
   commit 321e3dfbd5c4a585c00a8d5221ebdf9b934aaea1
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Apr 11 04:16:31 2011 +0000
   
       thread_timeout: rewrite for safety
       
       This attempts to fix all the danger associated with using
       Thread#raise.  Hopefully I succeeded.
       
       Note: this logic _cannot_ be used to fix the timeout.rb
       module in the Ruby standard library, that one needs to
       allow nested timeouts (which seems impossible).
   
   commit 5170b767ef1bbc94554920959d1792fce43899a9
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Apr 10 07:42:31 2011 +0000
   
       thread_pool: get used of dead thread_join method
       
       It's in the JoinThreads module now
   
   commit 777beb3e27785d2da2865cb5fc0d43f1c158cb5e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Mar 22 11:08:31 2011 -0700
   
       queue_pool: switch to ivars to protect internals
   
   commit dd6d5168e4f3dcb4555264265a05e5b61273893d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Mar 22 17:22:00 2011 +0000
   
       thread_pool+thread_spawn: update documentation
       
       They're not bad with slow clients a previously thought.
   
   commit 53fdbda1ba1d88e93d662a040fe4c7fb52810155
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Mar 21 02:45:02 2011 +0000
   
       simplify LISTENERS closing
       
       No need to obfuscate what it's doing
   
   commit c7e75cfe241a621f50c750720c47149a156e8e7f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Mar 20 03:07:31 2011 +0000
   
       fix various warnings with "check-warnings" target
       
       Run under 1.9.3dev
   
   commit d327a0d468e5b5cfb05bb56621fb22d156ce3a40
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Mar 17 09:59:55 2011 +0000
   
       pkg.mk: new task for checking Ruby warnings
   
   commit ee9e7886d9101a6376d268a931c645026e9f6b0f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Mar 15 21:44:14 2011 +0000
   
       fiber/io: fix broken call to Kgio.trywrite
       
       Fortunately it's a deprecated class that nobody
       uses...
   
   commit e9cb419a7887fce13fc7b185177c87fc45279383
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Mar 15 12:36:10 2011 +0000
   
       Rainbows! 3.2.0 - trying to send files to slow clients
       
       We now use IO#trysendfile in the sendfile 1.1.0 to reduce the
       cost of generating backtraces for slow clients (from EAGAIN).
       Nothing new for people not serving static files (but more
       on the way).
       
       Existing "sendfile" gem users must upgrade to 1.1.0
       or risk being left without sendfile support at all:
        http://bogomips.org/rainbows.git/patch?id=cd8a874d
   
   commit f550b2ac5cdfedba53564609af19db38c302bbf4
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Mar 15 12:35:06 2011 +0000
   
       bump Unicorn dependency to 3.5.0
       
       Latest and greatest :D
   
   commit c158f140e6a402278602b3be890c2c1dc494465d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Mar 10 15:22:06 2011 -0800
   
       doc: update Static_Files for new sendfile gem
       
       Ugh, and still no usable IO.copy_stream under 1.9.2 :<
   
   commit cd8a874d18fe01e11bb57b91186b6c9f712a4b3f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Mar 10 15:06:10 2011 -0800
   
       switch from IO#sendfile_nonblock to IO#trysendfile
       
       IO#trysendfile does not raise exceptions for common EAGAIN
       errors, making it far less expensive to use with the following
       concurrency models:
       
       * Coolio
       * CoolioFiberSpawn
       * Revactor
       * FiberSpawn
       * FiberPool
       
       This requires the new sendfile 1.1.0 RubyGem and removes support
       for the sendfile 1.0.0.  All sendfile users must upgrade or be
       left without sendfile(2) support.  IO#sendfile behaves the same
       if you're using a multi-threaded concurrency option, but we
       don't detect nor use it unless IO#trysendfile exists.
   
   commit afea5cd7c691de95b37d29728ab4880e3b737a42
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Mar 8 14:08:43 2011 -0800
   
       test_isolate: bump dependencies
       
       New sendfile gem will give us IO#trysendfile.
       We might as well use and test the latest and greatest
       versions of everything else since thats what users
       pull in by default.
   
   commit 85784e1b5fca7bbadc7fb5dba1f100785188954f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Feb 28 03:10:55 2011 +0000
   
       use IO#wait instead of IO.select for single readers
       
       It's a simpler interface and avoids allocating an array
       which is nice.
   
   commit 829d58c261ba64bb4f512c6591eba2f468df15a6
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Feb 16 10:47:27 2011 -0800
   
       README: clarify license terms and versions
       
       Ruby 1.9.3dev switched to BSD but we remain under the same terms
       as the old Ruby 1.8 license.  Mongrel2 exists now and also uses
       the BSD, so don't confuse people with that, either.
   
   commit 23be173e2506f8a39d3e7b3097cef4e3b8a31ccc
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Feb 15 09:44:23 2011 -0800
   
       tests: updates for cramp 0.12
       
       The Cramp::Controller namespace is gone.
   
   commit 061cb38ee10c431a015276c2cf3db37e5e3e66ef
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Feb 11 10:49:56 2011 +0000
   
       Rainbows! 3.1.0 - minor updates
       
       Small bug fixes that have been sitting around, not much but
       it's already been one month since our last release.
       
       * Unicorn dependency updated to 3.4.0, so we get IPv6 support
         and Kgio.autopush support for ":tcp_nopush => true" users.
       
       * Optional :pool_size argument is fixed for NeverBlock and
         CoolioThreadPool users.
       
       * Mostly minor internal code cleanups
       
       * Sunshowers support removed, it was out-of-date and
         unmaintained.  Cramp remains supported for now.
       
       * X-Rainbows-* response headers support removed, nobody used it.
       
       There are severalnew features in this release not documented
       here.  Consider any new features not mentioned in these release
       notes to be subject to removal/renaming in future releases.
   
   commit 93625a24f0b20a89f4ab732c92f76640e387c1a0
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Feb 11 11:12:17 2011 +0000
   
       pkg.mk: update to the latest
       
       * Fixes Ruby 1.9.3dev deprecation warnings
       * Fixes some documentation dependency issues
   
   commit 3b3047f2f60a5f9c4f526fe8fcfc0d7897422abb
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Feb 11 10:49:07 2011 +0000
   
       reverse_proxy: document as "not ready for production"
       
       Of course some folks believe nothing in Rainbows! is :.
   
   commit 04b8de2cf6c3037c45e60d3720472b09dd23efd5
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Feb 7 19:48:46 2011 -0800
   
       Revert t/bin/unused_listen simplification
       
       This conflicts with ports clients may automatically use
       in the ephemeral range.
       
       This reverts commit c9a7560bb684bbdadb641ebc7597303f38c37d4f.
   
   commit 662a146457689110c83bfd18987938475966f454
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Feb 7 19:26:04 2011 -0800
   
       new test for optional :pool_size handling
       
       This will help prevent us from breaking :pool_size in the
       future.
   
   commit a34b1048d05397f72ad579fcef72cbb1a9e9d8bc
   Author: Graham Hughes <graham@rightscale.com>
   Date:   Mon Feb 7 16:49:31 2011 -0800
   
       fix optional "use" argument handling
       
       Actually use the Rainbows::O constant for use
       
       [ew: rewritten commit message subject]
       
       Acked-by: Eric Wong <normalperson@yhbt.net>
   
   commit b7d974960b58d732149d5fabf870b2332b6877f7
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Feb 7 18:52:51 2011 -0800
   
       gemspec: remove unnecessary statements
       
       No need for these
   
   commit 40871775044a88662b9593d86a631755ca516bab
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Feb 7 18:51:50 2011 -0800
   
       doc: rdoc cleanups and fixes
       
       Don't need to document things that aren't ready, yet.
   
   commit 53bac4f65d9430495c8043b239cc936012ea7a8d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Feb 6 06:19:09 2011 +0000
   
       minimize &block usage for yield
       
       No need to allocate a proc every time when we can just
       yield much more efficiently.
   
   commit 44eb53f5a5f1ea2e5aee93d0caf995f42b3179f7
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Feb 6 01:42:31 2011 +0000
   
       kill some unnecessary &block usage
       
       We were needlessly allocating objects even when using yield.
   
   commit 90a86c9822238f01e8d60c9303b9a0da64351c7f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Feb 5 10:44:52 2011 +0000
   
       *epoll: refactor common loop code
       
       acceptor thread pools could use some work, still
   
   commit c9ca82c76f1eb0e06b0aa204a243d00f382579c5
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Feb 5 10:11:56 2011 +0000
   
       *epoll: consolidate re-run logic
       
       There's a lot of code duplication here :<
   
   commit d8e3edadd128a2ee5712b87a6b660295de2df6be
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Feb 5 09:22:05 2011 +0000
   
       writer_thread_pool: needless use of Array#map
       
       Array#each will do..
   
   commit fa7a282502c253ad3203f28bb10eede8b3a3cd3e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Feb 5 09:06:37 2011 +0000
   
       less expensive QUIT processing
       
       Avoid constantly nuking the method cache and raising
       repeated exceptions while our master process is shutting
       us down.
   
   commit 723ca7b440b1cf161d999aedcfadba8498adaa7c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Feb 5 08:46:40 2011 +0000
   
       http_server: kill a warning
       
       Ugh, I need to think of a way to clean this up...
   
   commit 7246d2f2d1601dbb5486ce7f9ddbebd1bb975b58
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Feb 4 20:39:41 2011 -0800
   
       bump required Unicorn dependency for Kgio
       
       We want to use the singleton methods in Kgio to reduce
       conditionals.
   
   commit e00c2e8c53ad5b47baa5bc6a8765b7c3c92296b9
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Feb 4 18:59:18 2011 -0800
   
       bump wrongdoc development dependency
       
       1.5 is nicer than older versions
   
   commit 8e2e8adda8adbadee8ab31cde700b7e486b1154c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Feb 4 18:58:26 2011 -0800
   
       rename XAcceptEpoll to XEpoll
       
       It's too long especially since XEpollThreadPool is planned :>
   
   commit 0f4f015737297ac5245d0be9ee83553770ade0a9
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Feb 4 15:05:25 2011 -0800
   
       test_isolate: use latest Unicorn
       
       It supports IPv6 and pulls in a better Kgio.  Since Unicorn
       defaults to ":tcp_nopush => true", we need to flip it back
       to false to be compatible with the types of apps Rainbows!
       is targetted as.
   
   commit f015a843fcfa120286628ec75829575ee2391380
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Feb 4 17:48:34 2011 -0800
   
       tests: replace several sed invocations with ed
       
       ed can do in-place editing portably, unlike sed.
   
   commit 82579a5f20531e69eb40e6a58a931b6c5f77d548
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Feb 4 15:06:23 2011 -0800
   
       reverse_proxy: small reorganization
       
       Put all of our constants in one place for easy reference
   
   commit d20bb75518669444ad65fffe4c6e5d2654436193
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Feb 4 15:01:03 2011 -0800
   
       reverse_proxy: properly read IPv6 addreses in upstreams
       
       Yes it's fugly
   
   commit ba9a22b6926db058199d44a626b923376c8a850f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Feb 4 22:38:31 2011 +0000
   
       epoll: handle EINTR properly in Ruby-space
       
       We can't work around it effectively in the C extension
       itself.  This requires the latest sleepy_penguin gem.
   
   commit da93ad1c07ff9deb4d3a2e765b26f87ccf68aa23
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Feb 4 05:41:14 2011 +0000
   
       test_isolate: only load sleepy_penguin under Linux
       
       It's Linux-only, after all
   
   commit c9a7560bb684bbdadb641ebc7597303f38c37d4f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Feb 4 04:20:15 2011 +0000
   
       t/bin/unused_listen: simplify this
       
       Binding to a random port is much easier this way
   
   commit 130d086666ccd825fcb13cf02fcf941b8fe661af
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Feb 1 15:05:52 2011 -0800
   
       preliminary reverse proxy Rack application
       
       This can be a starting point for developing Cool.io or
       EventMachine-based reverse proxy applications on Rainbows!
       
       Eventually Rainbows! could replace nginx for Unicorn users!
       Just don't consider this code production ready, yet, at all,
       it doesn't handle any sort of failover and has no automated
       tests, yet.
   
   commit 9bf406655a84090426a62ab60677df529e408f17
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Jan 31 14:21:18 2011 -0800
   
       coolio/client: on_write_complete triggers read
       
       This allows us to more aggressively handle pipelining
       as well as trigger future Kgio autopush behavior.
   
   commit 5cbe276ef1e797aef77e7401593f4a7827c37fe3
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jan 27 12:52:15 2011 -0800
   
       test for client_max_body_size being zero
       
       Some users never, ever accept uploads, so we should test
       for it.
   
   commit 7d623489dd51667e0a2eec9d44aec57cb4c5ba44
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 26 17:42:55 2011 +0000
   
       epoll/client: avoid unnecessary Epoll#set calls
       
       We should only attempt to modify the descriptor when we
       block, and not for subsequent events.
   
   commit bc8a71ea4fee6e4ed35dad245511508ac0b7bf4b
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 26 17:40:01 2011 +0000
   
       GNUmakefile: only enable epoll-based models in Linux
       
       epoll is Linux-only right now.  kqueue probably isn't worth
       supporting directly (and even direct epoll support is debatable
       given the current GVL situation)
   
   commit 667b05819b85165061c445fb2c75ef161a5de5b6
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Jan 24 20:04:20 2011 -0800
   
       initial XAcceptEpoll concurrency model
       
       Edge-triggered epoll concurrency model with blocking accept() in
       a (hopefully) native thread.  This is recommended over Epoll for
       Ruby 1.9 users as it can workaround accept()-scalability issues
       on multicore machines.
   
   commit 9f7f497dc21d904a1af20465318d85811daf0652
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Jan 24 17:13:14 2011 -0800
   
       epoll/client: thread-safety for write queuing
       
       We're living on the EDGE and mixing epoll with threads :D
   
   commit 04b8649b3750a0002094e90a62f7566059c8a4e9
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Jan 24 17:00:51 2011 -0800
   
       epoll: make Epoll.quit more reusable
       
       We'll be using this more in the future
   
   commit 85ccfbc75abc78f977583db6303e3fb270fd2ec9
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Jan 24 13:20:23 2011 -0800
   
       neverblock: fix app_call under 1.8.7
       
       super doesn't seem to capture arguments inside a block
       under 1.8.7 :<
   
   commit 9e146021e17056976e61d824d228922bf81a4f24
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Jan 24 11:47:43 2011 -0800
   
       clear LISTENERS array on close
       
       No reason to keep it around
   
   commit 6f6a95b6e3b4f76278cd19b787c8487453dae4d4
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 21 22:56:29 2011 -0800
   
       epoll/client: minor optimization
       
       We know @wr_queue is empty since we just initialized it
       and the first thing an HTTP client does is read.
   
   commit 01fbc4a7f2fd5b751b9183d11aa74aadaffd145b
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 21 17:34:21 2011 -0800
   
       ev_core: force input to be given to app_call
       
       No need to setting an ivar for most requests
   
   commit 9719da13b8aabeabbf2eebc37f127e88550c3121
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 21 17:27:25 2011 -0800
   
       epoll/client: factor out on_close method
       
       We'll override it, maybe...
   
   commit 97d8f9b49e3f4637c7c573a971cdbc54b5698dce
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 21 17:10:00 2011 -0800
   
       epoll/client: remove unused client
       
       We don't do Level-Triggered I/O around here
   
   commit cc08315b7821cf7178d233451fd6bbe84eb90dcc
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 21 15:34:15 2011 -0800
   
       extract common tasks to pkg.mk to simplify our makefile
   
   commit fb24ca8f30edbf5086dbe288d4dd4fa213684236
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 21 15:11:16 2011 -0800
   
       epoll: reduce expiration calls and Time objects
       
       We'll lower our precision for keepalive timeouts a little
       and and reduce our Time object allocation rate.
   
   commit 43d6ec33c3dd7497e27127adfffeb94722fd4b8d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 21 15:08:07 2011 -0800
   
       ev_core: garbage reduction
       
       We don't need to allocate new string objects for short-lived
       strings.  We'll pay the price of a constant lookup instead.
   
   commit 247ce76b4aabfa42157b9cbf9ebae824819cfff6
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 21 13:21:07 2011 -0800
   
       epoll: use newer sleepy_penguin
       
       We can eliminate the State module to simplify our code
       since 1.3.x keeps better track of things.
   
   commit b33ab73a984660ab2d741b32725ab21d7860bef3
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 21 13:50:12 2011 -0800
   
       max_body: disable for epoll
       
       It's almost just like Coolio
   
   commit 6750d3b50a9d4e66cbdb3b3ce295a1f16a54c678
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 21 12:35:05 2011 -0800
   
       doc: git.bogomips.org => bogomips.org
       
       bogomips.org is slimming down and losing URL weight :)
   
   commit 805f0eba4f63d0c9020708e1122f64776933c06f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 21 00:16:57 2011 -0800
   
       epoll: use sleepy_penguin default size for epoll_wait
       
       It was based off the nginx window of 64 events.  Not that
       any servers are really that busy...
   
   commit 1b024d48169442a5498d490699ea1eee41563587
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jan 20 15:27:46 2011 -0800
   
       epoll: close epoll descriptor on graceful shutdown
       
       This allows us to gracefully shutdown more quickly.
   
   commit ea4a01df8b1fa29e2088816f4734bb0073eb9380
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jan 20 22:15:12 2011 +0000
   
       remove support for Sunshowers
       
       The WebSocket protocol is still undergoing changes and unused.
       We won't waste time supporting it until it's finalized and
       doesn't break HTTP.
   
   commit 7ec2e407206036a993aadbcd39b13a2d86b7a288
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jan 20 13:26:59 2011 -0800
   
       epoll: ignore ECONNRESET errors
       
       Nothing we can do about that from clients.  Perhaps kgio
       should just return nil for those...
   
   commit 7ad4e300c29b06fd53aca9f9bad18f97f9a34633
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jan 20 20:32:24 2011 +0000
   
       ev_core: simplify setup steps
       
       ev_core is always loaded after forking, so eliminate the
       need for extra setup steps for each concurrency model that
       uses it
   
   commit 72cbecfe01b8c4b2c7bb7e362401805374036dc2
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jan 20 02:28:12 2011 -0800
   
       merge rack_input into process_client
       
       It turns out to be less-used than previous anticipated,
       so there's no point in having yet another module.
   
   commit ed33b9c0d060806b41e952a50e0ab65a0f5fe21a
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jan 20 02:20:19 2011 -0800
   
       ev_core: localize 413 error constant
       
       It's the only place we ever use it
   
   commit e0ad4353f0c0f8ae27301df3e694384f687a4264
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jan 20 02:16:04 2011 -0800
   
       remove unused 416 error constants/exceptions
       
       We handle that locally in rainbows/response now
   
   commit fa0b3774dd9cd73331e83b3517c37964ab265074
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Jan 20 02:13:38 2011 -0800
   
       dev_fd_response: garbage reduction
       
       Constant strings mean the runtime won't have to allocate new
       objects all the time since GC is currently the biggest
       performance problem of Ruby 1.9.x in my experience.
   
   commit fc355db99bdbe72644e4691a7a107b6a29c77be6
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 19 18:07:13 2011 -0800
   
       dev_fd_response: do not send chunks to 1.0 clients
       
       chunked Transfer-Encoding is only valid for HTTP/1.1
   
   commit d59ea817d624478176212f27bb79976c371a9c6f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 19 17:47:37 2011 -0800
   
       t0035: kgio-pipe-response works everywhere
       
       Or at least it should :)
   
   commit 5d5d31e7ed12a232e405a8456d08e974ac74299a
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 19 17:46:52 2011 -0800
   
       t0023: use skip_models helper
       
       we need to get in the habit of using this more
   
   commit 1a449c8abafbb17f9e7c2d68363957c80dc1ab86
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 19 16:23:54 2011 -0800
   
       remove support for X-Rainbows-* headers
       
       We guarantee the Rack env will exist for the duration of
       the request/response cycle, so we can just tweak
       "rainbows.autochunk".
   
   commit 9424b13255a238dfa44952ebeb07bea3acee999c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 19 15:06:10 2011 -0800
   
       initial edge-triggered epoll model
       
       Coolio and EventMachine only use level-triggered epoll,
       but being Rainbows!, we live on the EDGE!
   
   commit 7a04133c1ab57923cac8a9de04b00bfe89bcce2d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 19 02:58:43 2011 +0000
   
       tests: content-md5 tests shut down connection
       
       This makes content-md5 tests much faster since we
       no longer wait for the server to to timeout.
   
   commit 810701d939114a5fcdacc55ec383de112c5e3fa4
   Author: Eric Wong <e@yhbt.net>
   Date:   Mon Jan 17 03:42:33 2011 +0000
   
       ev_core: reuse buffer to avoid GC thrashing
       
       Single-threaded concurrency models can reuse a single
       buffer to avoid thrashing memory and causing unnecessary
       GC activity.
   
   commit c7f4ade8edcfa7422d41c4272250b292b141b427
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 14 18:51:54 2011 +0000
   
       t0050: improve test reliability
       
       normal signals can get lost easily :<
   
   commit 18db44fe89b8ba61f21b92f6efece37baa8bd6c7
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 14 18:49:58 2011 +0000
   
       tests: bump rack-fiber_pool version to 0.9.1
       
       We always try to track the latest and greatest.  We've also
       updated the test to actually test concurrency since
       rack-fiber_pool reuses recent fibers now.
   
   commit 2eb58a62a5e738c287db8239f4f4e8d1d02ed328
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Jan 11 16:43:10 2011 -0800
   
       Rainbows! 3.0.0 - serving the fastest apps to slow clients faster!
       
       There is one incompatible change: We no longer assume application
       authors are crazy and use strangely-cased headers for "Content-Length",
       "Transfer-Encoding", and "Range".  This allows us to avoid the
       case-insensitivity of Rack::Utils::HeaderHash for a speed boost on the
       few apps that already serve thousands of requests/second per-worker.
       
       :Coolio got "async.callback" support like :EventMachine, but it
       currently lacks EM::Deferrables which would allow us to call
       "succeed"/"fail" callbacks.  This means only one-shot response writes
       are supported.
       
       There are numerous internal code cleanups and several bugfixes for
       handling partial static file responses.
   
   commit 9caff8ecc7912306366cebb9c57b65ab12fde5ad
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Jan 11 16:36:08 2011 -0800
   
       add write-on-close test from Unicorn
       
       We need to ensure this esoteric feature keeps working for some
       people.
   
   commit 89f948aeaef34114ec61291ff8ffbebcf85a748e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Jan 11 16:01:20 2011 -0800
   
       event_machine: buffer reads when waiting for async.callback
       
       We cannot trigger on_read events and invoke the HTTP parser and
       modify @env while we're waiting for an application to run
       async.callback.  We also need to clear (and *maybe* re-set)
       @deferred if we're writing from async.callback
   
   commit 0515dee246536cb3942f51f8d264737f106d3985
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Jan 11 15:46:56 2011 -0800
   
       event_machine/client: rename ivar for consistency with Coolio
       
       Both use @deferred to refer to the state where there's a
       deferred response body in the queue.
   
   commit f9256a6897645e709753f37b723ed1c6388c0c84
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Jan 11 15:44:57 2011 -0800
   
       event_machine/client: remove unused :body accessor
       
       Nobody uses it anymore
   
   commit 69d8ec2f167eb99a1efec4a770ba5951e7c366f0
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Jan 10 18:07:21 2011 -0800
   
       coolio: enable async.callback for one-shot body responses
       
       The lack of an equivlent to EM::Deferrable prevents us from
       doing streaming/trickling responses, but a one-shot body
       should work fine for Coolio and generating dynamic responses.
   
   commit bf6eb8f1f79ed57ee317b2e6f73c70a59708739f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 18:16:27 2011 -0800
   
       rainbows/coolio/client: set LOOP constant in module
       
       It's more natural and easier to maintain this way
       since Coolio::Client is always lazy loaded.
   
   commit 4747aa0d07950b9abbb036bc02491c4639dc9f80
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 17:10:46 2011 -0800
   
       coolio/client: small optimizations
       
       * lazy load uncommon classes: StreamFile, Response{Chunk,}Pipe
       * remove needless rainbows/coolio/sendfile module since we're
         lazily loaded now along with the rest of rainbows/coolio/client
         and only in the worker.
   
   commit 37ec9ef3272931f42b4b0bb3f04a3855a8702a05
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 18:06:54 2011 -0800
   
       coolio_thread_*: lazy load Rainbows::Coolio::Client
       
       We don't want that loaded in the parent process since
       we want config reloadability.
   
   commit f6d448bc21c3bde3ab39b55664722b40f5801c20
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 18:05:28 2011 -0800
   
       redirect unexpected test output to /dev/null
       
       We check the return code anyways, and spewing random binary
       data to the terminal with verbosity on is not a good idea.
   
   commit 25c9cf0d8420a971840297d9ca62e7dd9c05b09e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 17:07:48 2011 -0800
   
       event_machine: fold write_response back into client
       
       No point in having too many modules to search around
       (for both hackers and the runtime).
   
   commit 7e4a7225dbd01df27a6b3ec44e53c013b889a724
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 16:12:26 2011 -0800
   
       event_machine: cleanup async logic
       
       Since we support keepalive now, setting @state can be
       harmful and the comment is out-of-date.
   
   commit 9d2fdee38f990e44b3a232c27f51287173e60e91
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 15:49:02 2011 -0800
   
       ev_core: small organization cleanup
       
       We want to put all constants in one place.
   
   commit 63c32b35cccd5f2358565f828db240200e8bffa7
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 15:47:33 2011 -0800
   
       more consistent use/avoidance of HeaderHash
       
       Rack::Utils::HeaderHash is still expensive, so avoid
       forcing it on users since we can assume app/library
       authors use normally-cased HTTP headers.
   
   commit 58dbf0952b94b01d4a434fa880755f9a320c6103
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 10:27:30 2011 -0800
   
       favor Hash#include? for some existence checks
       
       Hash#[] is slightly slower on the miss case due to calling
       Hash#default (but faster for the hit case, probably because it
       is inlined in 1.9).
   
   commit 2d2416daa554dd530b5f2cfeffe3e0e31505c824
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 11:59:42 2011 -0800
   
       test_isolate: bump versions and simplify
       
       We can't possibly keep track of all sub-dependencies,
       so only declare primary dependencies until we find
       a known problem with a sub-dependency.
   
   commit fbedef35186609f9e1cdedaa3a9d2a016423fe82
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 11:55:12 2011 -0800
   
       test_isolate: prevent concurrent execution
       
       I realize this lock overly covers different versions of
       Ruby, but it's simple and we don't need to invoke isolate
       too often (we hope).
   
   commit efbdc44a5a301e5ea16d5135afaa9cda3a33f5d3
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 11:54:35 2011 -0800
   
       tests: bump async_sinatra dependency to 0.4.0
       
       It's out and it works, so why not.
   
   commit f1893ae9786db250fd95def1cf958f2351cb84c5
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 11:47:05 2011 -0800
   
       bump dependency on Rack to 1.2.1
       
       We need to split out Cramp tests to Isolate to a
       different path, which sucks, but oh well.  Cramp
       hasn't had a release in a while...
   
   commit 360ba90a9a50b5aabd1c65d51034c7ebe77e36ef
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 10:20:24 2011 -0800
   
       response: do not skip Status header set by app
       
       Rack::Lint already stops apps from using it.  If a developer
       insists on it, then users who inspect their HTTP headers can
       point and laugh at them for not using Rack::Lint!
   
   commit c162bd4d620bc1421f104d9d0dfba21fb9b43068
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 10:10:20 2011 -0800
   
       response: fix skipping of Status: header from app
       
       We already set a Status: header by default for compatibility
       with some existing, broken libraries out there.
   
   commit b788a0f1eedfb358f9d57f40cec6ba0960dea3fe
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Jan 7 10:02:52 2011 -0800
   
       ev_core: garbage reduction with const strings
       
       Reading headers is common and we don't want to create new String
       objects (even if they're tiny or copy-on-write) for the GC to
       munch on.
   
   commit 370fb8c7811704ed65384f599b52ac1b6d0c36c9
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 5 18:01:36 2011 -0800
   
       event_machine: refactor async.callback for keepalive
       
       async.callback will be useful with Coolio (and more!) soon, so
       ensure it works as well as the rest of Rainbows!
   
   commit 2cb26ba8084cd37996330616b885de1c780d848e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 5 17:39:11 2011 -0800
   
       event_machine: factor out async.callback handling
       
       This will allow Coolio to use it, too.
   
   commit 31a93152c8977f31045bd182ae99df4ebd088abf
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 5 17:18:05 2011 -0800
   
       minor cleanups following state cleanups
       
       We noticed a few more things that could be cleaned
       up after the last commit.
   
   commit 6bde32081338ce8075854f4c47ce8ca5347df919
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 5 17:06:20 2011 -0800
   
       eliminate G constant and just use the Rainbows! module
       
       Code organization is hard :<
   
   commit d6e4975937a9590f48dc39b1a4aefa9d62f34616
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 5 16:38:46 2011 -0800
   
       rainbows.rb: unindent
   
   commit ea6831e1eaeeb862afa7ed9213e2d9bc0180e706
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 5 16:33:04 2011 -0800
   
       eliminate timed_read module
       
       No need to split it out when there's only a single
       class using it.
   
   commit ed7669ced3aba5c0ba6f5fbee9411546b32c96df
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 5 16:29:53 2011 -0800
   
       simplify keepalive_timeout accounting
       
       Easier just to use an instance variable
   
   commit 4060b7742d047c0000fd1bf4ac2c3b9cae95585a
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 5 16:19:17 2011 -0800
   
       disable Nagle's algorithm by default
       
       Nagle's algorithm is harmful with the write-write-read sequence
       during keepalive, so we disable it performance for users using
       keepalive.  We always write headers with a separate write
       because Rack response bodies may not always be ready for writing
       when headers are.
       
       This requires Unicorn 3.3.0
   
   commit 9b6679ec50ecd184fccd195bd14bda3c6ea2070f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 5 16:15:29 2011 -0800
   
       simplify Rainbows.max_bytes implementation
       
       Yes, I'm still learning Ruby.
   
   commit 950b4ba1454543de492efffdf4022f481ca7e4c2
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 5 16:14:07 2011 -0800
   
       response: use optimized httpdate implementation
       
       Believe it or not, Time#httpdate showed up at the top
       of my profiler output for the past couple of years now.
       I guess that's what happens when all HTTP applications
       I write are less complex than Rack::Lobster :P
   
   commit 4768850390bb1d1e3c2e36273e9aad953e18de19
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 5 16:08:09 2011 -0800
   
       Bump unicorn dependency to 3.3.0
       
       This means we can remove Time.now.httpdate in the next commit
   
   commit e8ae2e483e75ad163212cc8d3a7107eb2a014a9c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 5 10:56:50 2011 -0800
   
       response: allow normal Hash for crafting Range headers
       
       HeaderHash is quite expensive, and Rack::File currently
       uses a regular Ruby Hash with properly-cased headers the
       same way they're presented in rfc2616.
   
   commit 16b24c86cecec0697b35ac321cddd500bc9cfdea
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 5 10:54:45 2011 -0800
   
       tests: ensure 416 responses do keepalive
       
       This is useful for clients that specify a bad range,
       we can preserve the connection for them to specify
       a good response.
   
   commit 89e1f00cd540bca54c2cbcb7d9b6cad5e0e3cf34
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Jan 5 10:22:11 2011 -0800
   
       send proper 416 responses
       
       416 responses without a body should respond with a zero
       Content-Length and a Content-Range that allows clients
       to specify a proper range in the future.
       
       rfc2616, section 14.16 says:
       > A server sending a response with status code 416 (Requested
       > range not satisfiable) SHOULD include a Content-Range field
       > with a byte-range- resp-spec of "*". The instance-length
       > specifies the current length of the selected resource.
   
   commit 429e9948d91fa159c2daa9944a5026cebb78bade
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Jan 4 18:13:45 2011 -0800
   
       writer_thread_pool: remove unnecesary debug messages
       
       Oops
   
   commit 104f7bd76696e42c0b8a97f3780cabea9a7dd44c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Jan 4 17:12:22 2011 -0800
   
       prefer Hash#merge! to Hash#update for consistency
       
       It's more likely to be in the method cache since Rack::URLMap
       uses it and also is more consistent when looking at profiling
       output against various concurrency models.
   
   commit e21939d776673b2f8887adf7a5c64812b7d2e98e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Dec 30 08:33:15 2010 +0000
   
       globally refactor Range handling for responses
       
       Rack::Utils::HeaderHash is still very expensive in Rack 1.2,
       especially for simple things that we want to run as fast as
       possible with minimal interference.  HeaderHash is unnecessary
       for most requests that do not send Content-Range in responses.
   
   commit 4a76da1833922c74e147be5def9bfe04fd0c16a2
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Dec 30 08:32:28 2010 +0000
   
       coolio: rename deferred_response => response_pipe
       
       For consistency with the EventMachine code
   
   commit ed28feabd79697cb27722036622aeca1fbf0723d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Dec 30 08:32:27 2010 +0000
   
       event_machine: cleanup response_pipe
       
       No need to pass unnecessary variables to response_pipe,
       just let the client handle it all.
   
   commit c38bc88363d4c4f5f639540ca86f4dd1225df79e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Dec 30 08:32:26 2010 +0000
   
       refactor response sendfile body handling for easier debugging
       
       Unique method names makes it easier to follow code and determine
       where our methods come from.
   
   commit 1a03f9a525faf4c997546c419de6854223b645c4
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Dec 30 08:32:25 2010 +0000
   
       t9000: disable this test for CoolioThread* models
       
       It's not appropriate to use AppPool middleware with
       these.  It was disabled for RevThread*, too.
   
   commit 72a315441937f9e0531112f2b7080da39ca6064d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Dec 30 08:32:24 2010 +0000
   
       simplify per-client keepalive state checks
       
       This lets us simplify repetitive checks worry less about
       properly maintaining/closing client connections for each
       concurrency model we support.
   
   commit 1f28534fce2b30bf3099ea0d014b62ac4a3205f0
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Dec 30 08:32:23 2010 +0000
   
       coolio/master: small garbage reduction
       
       Creating unnecessary string objects for every response
       is not a good idea.
   
   commit a471d10cd793c4dc7182b4e588a21d6ac7c41de7
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Dec 30 08:32:22 2010 +0000
   
       return 206 status for partial sendfile responses
       
       Although curl did not complain, 206 is the correct error
       code for partial HTTP responses.
   
   commit dc77752eb7bfe528c60dc0ac028717877342e22a
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Dec 30 08:32:21 2010 +0000
   
       coolio_thread_*: fix 416 response handling
       
       After beefing up and enabling byte range tests for "sendfile"
       (and no just IO.copy_stream), we noticed threaded-Coolio
       variants did not handle invalid byte ranges correctly.
   
   commit 5c5aea99a57d07c1d0e0ea471b62acf2852526c7
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Dec 30 08:32:20 2010 +0000
   
       t0022: fix up broken/incomplete tests
       
       Tests for checking the Content-Range were totally broken,
       but fortunately the code itself works.
   
   commit 0e7d1a8b2923a20c452a300a48d25f7224b0b35b
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Jan 4 16:18:46 2011 -0800
   
       *gemspec: fix build, we have no unit tests
   
   commit 558abace15eefb06163b741cc7090893d532fb1d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Dec 29 09:29:13 2010 +0000
   
       Packaging cleanups, reinstate generated files for the tarball
   
   commit 074b2ddc09517274b058a68fd1d40c59e35ca3a5
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Dec 29 09:03:37 2010 +0000
   
       Rakefile: fix fm_update task
       
       Oops
   
   commit e98836e165fa46b67fc57adc1ce59620f4f3fc4d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Dec 29 02:13:04 2010 +0000
   
       Rainbows! 2.1.0 - Cool.io, bugfixes and more!
       
       Cool.io (new version of Rev) support is explicitly added
       (it always worked before).  ":Coolio" may be used in place
       of ":Rev" anywhere in your Rainbows! config file.
       
       There is a new "keepalive_requests" config directive to limit
       the number of requests a single connection may make (default:
       100, same as nginx).  This may be useful for better
       load-balancing characteristics.
       
       The old "Rev" prefixes remain supported as long as Cool.io
       remains compatible with Rev (likely forever).
       
       Bug fixes:
       
       * Rainbows::ThreadTimeout middleware with multiple clients
       * large, pipelined upload errors with Revactor+Coolio(Rev)
       * high CPU usage for maintaining idle keepalive on *Fiber*
       * needless ThreadPool wakeups
       * request env prematurely cleared keepalive requests,
         breaking some middlewares such as Clogger.
       * "close" not called on body if wrapper and sendfile used together
       
       Various code cleanups, and our RDoc website is JavaScript-free.
       See the ChangeLog or git for all changes.
   
   commit 40445641f11f01c6a24bf96c8b80eed5fd33a512
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Dec 28 17:59:27 2010 -0800
   
       complete Rev => Coolio renaming
       
       We use Cool.io internally everywhere now, but preserve
       Rev-based models for anybody using them.
   
   commit 3495d59763e6159975debf32728dc53fc41c5ea1
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 20:25:39 2010 -0800
   
       several response body#close fixes
       
       Some middlewares require the Rack env to be preserved all
       the way through to close, so we'll ensure all request models
       preserve it.
       
       We also need to better response body wrappers/proxies always get
       fired properly when returning.  IO.copy_stream and "sendfile"
       gem users could hit cases where wrappers did not fire properly.
   
   commit 53afe0b23fc67c5b25541cddbd68f905c649e756
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Dec 28 06:54:06 2010 +0000
   
       dev_fd_response: pass files straight through
       
       No need to wrap regular files
   
   commit 46d79be0ad3de48ef0a677537becb3508ccad31e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Dec 28 01:14:43 2010 +0000
   
       enable the keepalive_requests config option
       
       This will allow servers to limit the number of keepalive
       requests that can be made over a single connection to
       prevent denial-of-service and also to improve fairness
       in load-balancing.
   
   commit ef66567984780b2ce8daa155c367bcf7e049ab77
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 23:25:12 2010 +0000
   
       coolio*: favor Coolio over Rev
       
       We still use and define Rev internally, but that's
       mostly just manual labor of converting stuff over.
   
   commit 728496a31f34234b46d7025a23933aa06dd824f5
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 13:10:57 2010 -0800
   
       coolio_fiber_spawn: decrease CPU usage for keepalive
       
       Blindly resuming fibers every second is a waste of cycles, we
       can use the ZZ hash in regular FiberSpawn to resume expired
       fibers on an as-needed basis.
       
       While we're at it, merge the keepalive-timeout class into the
       heartbeat, there's no reason to have separate timers and
       classes here.
   
   commit 0766c1eb631190ee514a90e4d20a941f0a310054
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 13:10:56 2010 -0800
   
       t0019: add CPU usage test
       
       This requires manual verification :<
   
   commit d430bc3a481f897b4f515d5b7d0a0e239f8d2bb2
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 13:10:55 2010 -0800
   
       test-lib: fix bug in setting worker_connections
       
       We need to be able to set this with keepalive_timeout
       simultaneously.
   
   commit 4e7ee4b8a451edf78b0eeac47b8a24c591986e91
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 13:10:54 2010 -0800
   
       t0015: even less racy fix
       
       We need to ensure the first worker has started and is
       running before attempting to signal the reload.
   
   commit 2b85ea421197af84a13f6062b21ddcf61490ebcf
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 08:57:31 2010 +0000
   
       doc: misc cleanups and additions for RDoc
       
       This is also our website, so we need to document the new
       Cool.io-based concurrency options for users and point
       existing Rev* users to it.
   
   commit 87a38d1a5658938a3540b45ab04cc85a9135c8f0
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 07:45:28 2010 +0000
   
       t0015: increase reliability of test
       
       The worker process may fork before the original process
       is killed during daemonization.
   
   commit 3a250fcfb9fcfa0ab3a8105821e670563025faa4
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 07:18:49 2010 +0000
   
       initial cool.io support
       
       Cool.io is the new name for Rev.  We'll continue to support Rev
       until Cool.io breaks backwards compatibility.  Rev may not be
       supported if Cool.io is.
   
   commit 2873361069dc2f8c793875316a0a2c9b8fa54761
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 04:23:34 2010 +0000
   
       fiber/io: avoid allocating Range objects for slicing
       
       It's slightly faster this way, but string slicing sucks
       anyways :<
   
   commit 40c22b3f0a2ace6e4b51a39624ac5ed5ee3d0162
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 03:56:30 2010 +0000
   
       fiber/*: more efficient keepalive_timeout expiry
       
       We can use the same interface as Rainbows::Fiber.sleep to avoid
       blindly waking up readers at ever scheduler invocation.
   
   commit abb3f7e057bd5fb0aa97cae1410ce2f55ba12b9c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 03:01:47 2010 +0000
   
       fiber/base: use bare "select" where possible
       
       Less visual noise
   
   commit 2d25a86d1d17bd966eea59e5666e41d9da562811
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 02:59:10 2010 +0000
   
       thread_pool: avoid needless wakeups from select
       
       No point in waking up when our ticker runs in a separate
       thread.
   
   commit a3d3d13711869d420b4473d492bd788ebe493053
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 02:58:31 2010 +0000
   
       thread_*: unindent
       
       Hopefully this will make our code easier to follow.
   
   commit 94b848a8f9120bce8b0abd776b1a9b7e2f4fa30d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 02:43:44 2010 +0000
   
       introduce worker_yield method
       
       This lets Rainbows! yield the current worker process
       when busy in the hopes another worker will pick up the
       slack.  We can also override this for the single worker
       process case later if people care enough.
   
   commit a310302708faa19042282e94525544cfbb23eba5
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 02:36:58 2010 +0000
   
       writer_thread_spawn: factor out Client.quit
       
       Self-documenting code is easier to follow
   
   commit 6ae020c9ac483d822902b5d33f038f79b44d3a50
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 02:30:58 2010 +0000
   
       writer_thread_*: split out classes into separate files
       
       Use a consistent "Client" naming to reduce confusion
   
   commit e7d295fd8e3628eba7a1ba52e95b7dee11532e98
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 02:20:00 2010 +0000
   
       writer_thread_*: split out common socket_proxy code
       
       Needless duplication sucks
   
   commit 7f2cb1b56afda847c29e1e65fe0608a6f20a0fe6
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 27 02:13:32 2010 +0000
   
       writer_thread_*: unindent
   
   commit a5ff497e57bc6e8793c38bdd94ea9f1cfefd17fd
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 23:54:49 2010 +0000
   
       revactor: split out tee_socket and use autoload
       
       Some applications never need TeeSocket, and we don't have
       to worry about thread-safety with Revactor.
   
   commit c4d92b384dd3f926fa12eb704eeef663a9cb7b66
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 23:52:43 2010 +0000
   
       more :: prefix elimination
       
       This should make things easier on the eyes.
   
   commit 2e131bfd21f5ec5acc3c86233e5e292cec7aa67d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 23:52:02 2010 +0000
   
       fiber/queue: unindent
       
       This also cleans up some constant resolution for the root
       Fiber class.
   
   commit 712ef17547291fed37e79d37d0b6e0128ed43e0d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 23:41:51 2010 +0000
   
       remove unnecessary "::" constant prefixing
       
       It's ugly to look at.
   
   commit 6733af0546a759b73fd63880e8ef2549caf4c4f2
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 23:16:41 2010 +0000
   
       never_block: simplify and split out code
       
       alias_method is a mess, super is superb!
   
   commit 20e8d57127f16da8e4242582dee3b99d54cbb729
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 23:12:18 2010 +0000
   
       event_machine: split out server and client classes
       
       This should make things easier to find
   
   commit a50c9d312b9d5274a95f2816b5f53a3738d0cb92
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 22:48:33 2010 +0000
   
       rev_thread_*: unindent and split out
       
       This should make classes easier to find and hopefully make
       our code easier to follow.
   
   commit 6741aa27e4c35724b5306644d3a391fce415b0c7
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 21:46:46 2010 +0000
   
       rainbows/rev/* require/autoload cleanup
       
       One line of code saved!  We'll also avoid loading
       DeferredChunkResponse which is rarely needed
       (unlike DeferredResponse).
   
   commit 869e0d5da8cbe8959983ed66e2b4c31dc7a37d92
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 21:40:34 2010 +0000
   
       rename rev/thread => rev/thread_client
       
       While we're at it, unindent
   
   commit c1655a501fc26f7100dd788b42a1914be833fea4
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 21:33:21 2010 +0000
   
       rev_thread_spawn: disable under Ruby 1.8
       
       It still burns CPU at the first sign of doing anything
       interesting, so stop it.  Ruby 1.9 is the future :P
   
   commit fb7d5dbf06f8ce92a23b50a0cc45be3e7b55fccd
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 21:27:08 2010 +0000
   
       GNUmakefile: fix packaging task
       
       Oops
   
   commit 7bfd7995fd403f80940e3f6ac36f9ae58b7040cb
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 03:30:36 2010 +0000
   
       avoid HttpParser#keepalive? and HttpParser#reset
       
       The HttpParser#next? method will come with keepalive protection
       for Rainbows!, which can prevent clients from monopolizing a
       server with excessive pipelining/keepalive requests.
   
   commit 92a11cdfe00c5e551388c2cc1a62bfc59d568c6f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 09:50:06 2010 +0000
   
       bump Unicorn dependency
       
       Unicorn 3.2.1 gives us an improved HttpParser#next? that
       preserves state until the next HttpParser#parse call.
   
   commit 17156f6f561c6d697a83e3b9beae2d58eb796428
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 03:29:16 2010 +0000
   
       rainbows/rev/*: uninident some more
       
       This makes constant resolution more predictable, we hope.
   
   commit 68accc9930b0653b702553790d4ccd626a8dfdfe
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 03:09:47 2010 +0000
   
       rev: split out Rainbows::Rev::Server
       
       One file per class/module should be easier for new
       hackers to find.  Unindent rainbows/rev/core while
       we're at it, too.
   
   commit a35fd37ff0c81ca8130c18b7b77957bafe686f83
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sun Dec 26 03:00:11 2010 +0000
   
       rev: unindent, needless autoload
       
       Deferred* classes will get loaded anyways since
       Rainbows::Rev::Client hit them in case statements.
   
   commit 43e3d3f7a8dd2b184c8485469c2acff3dac34009
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Dec 24 08:52:55 2010 +0000
   
       doc: switch documentation generation to wrongdoc
       
       It is a common base so we can share documentation tasks
       more easily with Unicorn and it ensures our RDoc no longer
       has JavaScript in it!
   
   commit 7e0dc42f7084e1719456a80b2e44049133c2e8b7
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 20 00:54:17 2010 +0000
   
       thread_timeout: fix bad comparison
       
       This was causing unrelated requests to get killed every
       +timeout+ seconds, instead of only the ones that were
       running too long.
       
       Noticed-by: ghazel@gmail.com
       ref:
       http://mid.gmane.org/AANLkTi=7OhyTwkHsp_rXU7Gp1PokihiQ9bJigpO-BfN6@mail.gmail.com
   
   commit 886e0a006d9e8e9c586beae28ed4dc5097064e90
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Dec 20 03:41:48 2010 +0000
   
       thread_timeout: avoid a threading bug under 1.9
       
       Because of the lack of GVL-releasing syscalls in this branch
       of the thread loop, we need Thread.pass to ensure other threads
       get scheduled appropriately under 1.9.  This is likely a threading
       bug in 1.9 that warrants further investigation when we're in a
       better mood.
   
   commit 7e2bb251228a30c0d4e66029b20bbbf85bc99a09
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Dec 14 18:36:34 2010 -0800
   
       FAQ: add a note about config.threadsafe!
       
       At least one user ran into it:
       http://mid.gmane.org/AANLkTikegPX2-6Q93++bz_aLt+9nLPJXjg+NkL8tDjeE@mail.gmail.com
   
   commit 2bb3f8fd600bd0aabe5e4d7c3d1f99d745fc8f49
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Dec 9 17:14:04 2010 -0800
   
       respect client_body_buffer_size in Unicorn 3.1.0
       
       This is only needed for concurrency options that
       do not use TeeInput, since TeeInput automatically
       handles this for us.
   
   commit af3629e6bd88b5744016a1c6217c00c37ef5a376
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Dec 9 14:42:18 2010 -0800
   
       bump Unicorn dependency to 3.1.0
       
       We'll be taking advantage of configurable
       client_buffer_body_size soon.
   
   commit 7b51a4b5e16734bae6fe60d180c3906f96235da4
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Dec 9 14:22:16 2010 -0800
   
       thread_timeout: de-Struct-ify
       
       Avoid exposing internals, it's also slightly faster to
       access ivars directly rather than using method calls.
   
   commit 6b750f5f952963009a2e6e8702fc8f3d8adc94ea
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Dec 8 18:35:27 2010 -0800
   
       respect "rewindable_input false" in Unicorn config
       
       This was completely overlooked for the Rainbows 2.0.x
       releases.
   
   commit 10d96a76a1ea4431dd10ba181d747169c22c1cec
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Dec 8 13:38:52 2010 -0800
   
       t/*.sh: indentation fixes
       
       We use real tabs for indenting shell code since it is not Ruby.
   
   commit 1562a19a021a72a78ba495328d2d37ba0dc83b8c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Dec 7 12:11:51 2010 -0800
   
       rev+revactor: fix LARGE pipelined uploads
       
       Large uploads behave differently with regard to buffering,
       and there were bugs in the way the Rev and Revactor backends
       handled uploads.
   
   commit b4835c6d542c6369f2523ab68fc41b0202d7c6dc
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Dec 3 01:23:11 2010 +0000
   
       Rainbows! 2.0.1 - upload pipelining fixes
       
       For HTTP clients living on the edge and pipelining uploads, we
       now fully support pipelined requests (as long as the application
       consumes each request in its entirety).
   
   commit c096e735efea5050b0559748633403f0387ea3b3
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Dec 3 01:12:08 2010 +0000
   
       fix pipelining of requests with bodies
       
       All synchronous models have this fixed in unicorn 3.0.1,
       so only Rev and EventMachine-based concurrency models
       require code changes.
   
   commit 64889d9136fa5466269232c26a2f235dd763d8f0
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Dec 2 07:38:14 2010 +0000
   
       ev_core: refactor and split cap_input out
       
       Hopefully it makes more sense now and is easier to
       digest for new hackers.
   
   commit 945b5760d86b9dd00e65bd0625b98cf75f6a8257
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Dec 1 21:29:34 2010 -0800
   
       ev_core: split out prepare_request_body
       
       We may have other uses for this in the future...
   
   commit 90789761f0cc78d3726f3a2eda1c5fe95c015ac2
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Nov 19 19:09:59 2010 -0800
   
       Rainbows! 2.0.0 - minority rules!
       
       This release is targeted at the minority of web applications
       that deal heavily with uploads.
       
       Thanks to Unicorn 3.x, we now support HTTP keepalive for
       requests with bodies as long as the application consumes them.
       Unicorn 3.x also allows disabling the rewindability requirement
       of "rack.input" (in violation of the Rack 1.x spec).
       
       The global client_body_max_size may also be applied per-endpoint
       using the Rainbows::MaxBody middleware described in:
       
         http://rainbows.rubyforge.org/Rainbows/MaxBody.html
   
   commit c33878ac0f9f990aaa2054f8f00674d61bf5c848
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Nov 20 03:10:09 2010 +0000
   
       tests: depend on Unicorn 3.0.0
       
       Unicorn 3.0.0 is final and released, so we will use it in our
       tests
   
   commit a5986295bfb7bd7c44c863e4670f16481097c7fc
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Nov 19 18:55:06 2010 -0800
   
       revactor: fix braindamaged commit/coding style
       
       Oops, last commit was rushed
   
   commit da9dfc1dece4fbcdf2a8e8ccdb4914ce4aa3a998
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Nov 19 18:39:02 2010 -0800
   
       simpler keepalive check for synchronous models
       
       Unicorn 3.x includes HttpParser#next? which will reset the
       parser for keepalive requests without extra steps.
   
   commit c6ffae22748bc22d5ef88fea2a3ca67f480ee74b
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Nov 19 10:19:45 2010 +0000
   
       max_body: rewrite wrappers to be safer
       
       To avoid denial-of-service attacks, the wrappers need to
       intercept requests *before* they hit the memory allocator, so we
       need to reimplement the read(all) and gets cases to use
       smaller buffers whenever the application does not specify one.
   
   commit 3cee07d750f678af92318c14110c803be3f9b97f
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Nov 19 10:19:44 2010 +0000
   
       max_body: do not enable for RevThread* models
       
       Those already use CapInput, just like the rest of the evented
       Rainbows! world.
   
   commit 00b854e37391322c05cc16115b245d855b4970be
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Nov 19 10:19:43 2010 +0000
   
       upgrade to Kgio 2.x and Unicorn 3.x
       
       Kgio 2.0.0 has a superior API and less likely to conflict or
       blow up with other applications.  Unicorn 3.x requires Kgio 2.x,
       too.
   
   commit 0f00424be24806791f2b253ddac6d35102842646
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Nov 17 10:06:45 2010 -0800
   
       test_isolate: depend on newer Unicorn
       
       It allows disabling rewindable input and contains
       simpler code for upload processing.
   
   commit 31cf77e7aa2f2e6065e7ace44e55c3f042b51f1b
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Nov 16 16:16:42 2010 -0800
   
       reimplement client_max_body_size handlers
       
       This allows the client_max_body_size implementation to not rely
       on Unicorn::TeeInput internals, allowing it to be used with
       Unicorn::StreamInput (or any other (nearly)
       Rack::Lint-compatible input object).
   
   commit 42747db815ad668b20849afb2a9dcdd1319713ae
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Nov 2 12:32:23 2010 -0700
   
       avoid Errno::EAGAIN, harder
       
       Errno::EAGAIN is still a problem under Ruby 1.9.2, so try harder
       to avoid it and use kgio methods.  Even when 1.9.3 is available,
       kgio will still be faster as exceptions are slower than normal
       return values.
   
   commit 427ef4a2953a4b2d34f7dd89566a0cb5ee6e734d
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Nov 2 11:49:17 2010 -0700
   
       avoid Kgio::WaitReadable/WaitWritable constants
       
       The underlying symbolic names are easier to type and
       recommended.
   
   commit ed3a30dcfb5489447dec9c3f73e8bec9dbf7713a
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Nov 4 19:52:35 2010 -0700
   
       process_client: fix attempted keepalive on HTTP 0.9
       
       The long-term goal is to make the Unicorn API more terse when
       handling keepalive.
   
   commit 9f185041fb7af4cda21ba2d547fd4d16d9b2e453
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Oct 28 08:42:09 2010 +0000
   
       Rainbows! 1.0.0 - internal cleanups
       
       This release is merely a milestone in our evolving internal API.
       Use of kgio may result in performance improvements under Ruby
       1.9.2 with non-blocking I/O-intensive workloads.
       
       The only bugfix is that SIGHUP reloads restores defaults on
       unset settings.  A similar fix is included in Unicorn 2.0.0
       as well.
   
   commit 015635f877084cc05a9e6e4c1430c70279d0a04e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Oct 28 08:40:12 2010 +0000
   
       tests: avoid race conditions on reload tests
       
       We need to ensure the old worker is really dead before sending
       requests after reloading.
   
   commit b06c6b3ac214bc598d499c994884113d5b106e90
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Oct 28 08:29:53 2010 +0000
   
       t0018: wait for old worker to be reaped
       
       On busy machines, old workers may not shutdown quickly
       enough and may still be processing requests.
   
   commit f84f138233be0607b0151a5a28c3f9190ba336a2
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Oct 28 08:20:37 2010 +0000
   
       rev+event_machine: small cleanups with new parser API
       
       These allow for small reductions in the amount of variables
       we have to manage, more changes coming with later Unicorns.
   
   commit c4579db76b9ed5b0286fad852e798e8a890f093c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Oct 28 02:17:25 2010 +0000
   
       HUP reload restores defaults on unset settings
       
       For consistency, changed settings are reset back to
       their default values if they are removed or commented
       out from the config file.
   
   commit 83644e02068311c7ff9cdbc63efd4764d1518138
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Oct 27 23:52:28 2010 +0000
   
       use Unicorn 2.0.0 final
       
       Unicorn 2.0.0 has CPU wakeup reductions.
   
   commit 2b9503566759678c9fbd7b01d1b5f487854208db
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Oct 26 21:36:02 2010 +0000
   
       Rakefile: updates for prereleases
       
       We do prereleases, now.
   
   commit a47cd4a7f392a76357ed4f3e458797ae1f9c8f25
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Oct 26 21:26:03 2010 +0000
   
       Rainbows! 1.0.0pre1 - kinder, gentler I/O
       
       Mostly internal changes for kgio (and Unicorn) integration.
       There should be no (supported) user-visible changes from
       Rainbows! 0.97.0.  kgio should improve performance for
       concurrency models that use non-blocking I/O internally,
       especially under Ruby 1.9.2
   
   commit 0298a6743f2cadf8c8e47a298c5b35505b74af46
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Oct 26 21:20:45 2010 +0000
   
       gemspec: bump development dependency of Isolate
       
       Might as well go with the latest and greatest,
       it has saner defaults at least.
   
   commit 567e6ce5dba5ad2cca2cca8c64123e27939bff2b
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Oct 26 21:13:10 2010 +0000
   
       doc: RDoc updates
       
       Once again we avoid documenting internals on the public
       website and use code comments for other developers.
   
   commit 894cb73887c106acc793f0317ee849ae215ead56
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Mon Oct 25 22:15:47 2010 +0000
   
       reduce dependency on IO#write_nonblock
       
       kgio_trywrite is superior if it is available.
   
   commit 4ee6e0dafeb1b7af28fa90ae27c1a1a04aa8e852
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Sat Oct 23 00:42:04 2010 +0000
   
       http_request: remove this (sub)class
       
       It does not appear to be needed, for now, since the
       parser and Unicorn::HttpRequest are one and the same.
   
   commit 180485d49ea858f83ef2a28a9e07224aa514edc7
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Oct 22 16:21:03 2010 -0700
   
       unindent most files
       
       This simplifies and disambiguates most constant resolution
       issues as well as lowering our identation level.  Hopefully
       this makes code easier to understand.
   
   commit 41145ed4d335718ac43aec9313b7571a12fe96ee
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Oct 22 15:31:47 2010 -0700
   
       local.mk.sample: remove testing under 1.9.1
       
       Ruby 1.9.2 has been out for a while and is the stable
       release nowadays.
   
   commit b595ad7333ff85452b229674c6726e40d2cf7bb9
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Oct 22 18:55:46 2010 +0000
   
       README: update copyright year
       
       This project is over 1 year old!
   
   commit 4a568eeb7d17885579790d0ae004f04aa13479cb
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Oct 22 02:50:09 2010 +0000
   
       dev_fd_response: do not wrap for Fiber-aware IOs
       
       Applications may use wait_readable-aware methods directly
       to work with Rainbows!
   
   commit 6d46978bdc8d2ee4263431ecdcada53389b12597
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Oct 22 02:51:18 2010 +0000
   
       fiber_{pool,spawn}: unindent
       
       Reduces confusion for constant resolution/scoping rules
       and lowers LoC.
   
   commit 03806d2b44c2d3cee75258ee9e83d671e751baeb
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Oct 22 02:38:40 2010 +0000
   
       fiber_pool: no need for old Fiber::IO
       
       Rainbows::Client takes care of the I/O wait/read-ability
       for us already.
   
   commit 15631717fce044fbad2f386a7b1c7daf4bdd83d2
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Thu Oct 21 16:25:39 2010 -0700
   
       code shuffling for kgio
       
       Despite the large number of changes, most of it is code
       movement here.
   
   commit d4a2b5dd2b85f4b2d3bb120ee1e1b0dde31bc25c
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Oct 20 17:48:58 2010 -0700
   
       unicorn 2.x updates + kgio
       
       We get basic internal API changes from Unicorn,
       code simplifications coming next.
   
   commit a085ba3586756ac1f778d2862f75889de2449b0e
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Wed Oct 20 17:48:57 2010 -0700
   
       http_server: more descriptive error for debugging
       
       Sometimes we have stupid syntax or constant resolution
       errors in our code.
   
   commit ad821f70a2488a91f2be1ac53cb2e64f50743989
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Tue Sep 28 17:40:01 2010 -0700
   
       start using kgio library
       
       It removes the burden of byte slicing and setting file
       descriptor flags.  In some cases, we can remove unnecessary
       peeraddr calls, too.
   
   commit 11c75ec06ce72cea0c760161dc01a196500aa293
   Author: Eric Wong <normalperson@yhbt.net>
   Date:   Fri Sep 17 08:55:35 2010 +0000
   
       event_machine: remove unnecessary "return"
       
       Noise is bad.
