pool.rb in async-http-0.27.0

- old
+ new

@@ -42,9 +42,15 @@
 				@limit = limit
 				
 				@constructor = block
 			end
 			
+			attr :available
+			
+			def empty?
+				@available.empty?
+			end
+			
 			def acquire
 				resource = wait_for_next_available
 				
 				return resource unless block_given?
 				