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-rw-r--r--lib/rainbows/fiber/io.rb5
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/rainbows/fiber/io.rb b/lib/rainbows/fiber/io.rb
index d4f2512..f6b8bdf 100644
--- a/lib/rainbows/fiber/io.rb
+++ b/lib/rainbows/fiber/io.rb
@@ -7,6 +7,7 @@ module Rainbows
     # interface that yields away from the current Fiber whenever
     # the underlying IO object cannot read or write
     class IO < Struct.new(:to_io, :f)
+      include Rainbows::ByteSlice
 
       # :stopdoc:
       LOCALHOST = Unicorn::HttpRequest::LOCALHOST
@@ -58,8 +59,8 @@ module Rainbows
 
       def write(buf)
         begin
-          (w = to_io.write_nonblock(buf)) == buf.size and return
-          buf = buf[w..-1]
+          (w = to_io.write_nonblock(buf)) == buf.bytesize and return
+          buf = byte_slice(buf, w..-1)
         rescue Errno::EAGAIN
           wait_writable
           retry