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-rw-r--r--lib/sleepy_penguin/epoll/io.rb3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/sleepy_penguin/epoll/io.rb b/lib/sleepy_penguin/epoll/io.rb
index d5540c2..055f574 100644
--- a/lib/sleepy_penguin/epoll/io.rb
+++ b/lib/sleepy_penguin/epoll/io.rb
@@ -1,5 +1,8 @@
 class SleepyPenguin::Epoll::IO
   # :stopdoc:
+
+  # This is only for Ruby 1.8 using green threads
+
   alias __epoll_wait epoll_wait
   undef_method :epoll_wait
   def epoll_wait(maxevents = 64, timeout = nil)