lib/async/scheduler.rb in async-2.1.0 vs lib/async/scheduler.rb in async-2.2.0

@@ -158,16 +158,16 @@
 			return false
 		ensure
 			timer&.cancel
 		end
 
-		if IO.const_defined?(:Buffer)
-			def io_read(io, buffer, length)
-				@selector.io_read(Fiber.current, io, buffer, length)
+		if IO::Event::Support.buffer?
+			def io_read(io, buffer, length, offset = 0)
+				@selector.io_read(Fiber.current, io, buffer, length, offset)
 			end
 			
-			def io_write(io, buffer, length)
-				@selector.io_write(Fiber.current, io, buffer, length)
+			def io_write(io, buffer, length, offset = 0)
+				@selector.io_write(Fiber.current, io, buffer, length, offset)
 			end
 		end
 		
 		# Wait for the specified process ID to exit.
 		# @parameter pid [Integer] The process ID to wait for.