be sure to close the body. also add a config for benchmarking

config.ru

@@ -0,0 +1,28 @@
+$: << File.expand_path('../lib', __FILE__)
+require 'rack-emstream'
+
+class Sender
+  def initialize
+    @times = 100
+    @data = "data"
+  end
+
+  def each
+    @times.times { |i|
+      yield @data
+    }
+  end
+
+  def length
+    @times * @data.length
+  end
+end
+
+require 'logger'
+
+use Rack::EMStream
+run lambda { |env|
+  sender = Sender.new
+
+  [ 200, { 'Content-Length' => sender.length.to_s }, sender ]
+}

lib/rack-emstream.rb

@@ -22,6 +22,8 @@ module Rack
       EM.next_tick {
         env['async.callback'].call [ result[0], result[1], self ]
 
+        result[2].close if result[2].respond_to?(:close)
+
         result[2].each { |data| EM.next_tick { @callback.call(data) } }
         EM.next_tick { succeed }
       }

lib/rack-emstream/version.rb

@@ -1,5 +1,5 @@
 module Rack
   class EMStream
-    VERSION = "0.1.0"
+    VERSION = "0.1.1"
   end
 end