From 48f6337c6ecc4f0069f147d6bbaafed969e1d19a Mon Sep 17 00:00:00 2001
From: Eric Wong <normalperson@yhbt.net>
Date: Thu, 29 Jul 2010 08:06:57 +0000
Subject: fiber/io: reuse buffer in Rainbows::Fiber::IO#each

This makes life easier for the lazy GC when proxying
large responses (and also improves memory locality).
---
 lib/rainbows/fiber/io.rb | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/rainbows/fiber/io.rb b/lib/rainbows/fiber/io.rb
index 596aeae..4175eb0 100644
--- a/lib/rainbows/fiber/io.rb
+++ b/lib/rainbows/fiber/io.rb
@@ -24,11 +24,11 @@ module Rainbows
 
       # for wrapping output response bodies
       def each(&block)
-        begin
-          yield readpartial(16384)
+        if buf = readpartial(16384)
+          yield buf
+          yield buf while readpartial(16384, buf)
+        end
         rescue EOFError
-          break
-        end while true
         self
       end
 
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