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authorEric Wong <normalperson@yhbt.net>2009-10-18 15:59:29 -0700
committerEric Wong <normalperson@yhbt.net>2009-10-18 21:25:47 -0700
commit7b01d94dd9287ac402d91451f1e93c9faaf913c4 (patch)
tree8f4005f4e92108748af53b8cbf709522f33419db /lib/rainbows/const.rb
parentd0103759ae63b0ed1084f6a9d2b7ede538e8c871 (diff)
downloadrainbows-7b01d94dd9287ac402d91451f1e93c9faaf913c4.tar.gz
This new middleware should be a no-op for non-Rev concurrency
models (or by explicitly setting env['rainbows.autochunk'] to
false).

Setting env['rainbows.autochunk'] to true (the default when Rev
is used) allows (e)poll-able IO objects (sockets, pipes) to be
sent asynchronously after app.call(env) returns.

This also has a fortunate side effect of introducing a code path
which allows large, static files to be sent without slurping
them into a Rev IO::Buffer, too.  This new change works even
without the DevFdResponse middleware, so you won't have to
reconfigure your app.

This lets us epoll on response bodies that come in from a pipe
or even a socket and send them either straight through or with
chunked encoding.
Diffstat (limited to 'lib/rainbows/const.rb')
-rw-r--r--lib/rainbows/const.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/rainbows/const.rb b/lib/rainbows/const.rb
index 417a5de..403a18a 100644
--- a/lib/rainbows/const.rb
+++ b/lib/rainbows/const.rb
@@ -9,6 +9,10 @@ module Rainbows
 
     RACK_DEFAULTS = ::Unicorn::HttpRequest::DEFAULTS.merge({
       "SERVER_SOFTWARE" => "Rainbows! #{RAINBOWS_VERSION}",
+
+      # using the Rev model, we'll automatically chunk pipe and socket objects
+      # if they're the response body
+      'rainbows.autochunk' => false,
     })
 
     CONN_CLOSE = "Connection: close\r\n"