class Async::LimitedQueue

def enqueue(*items)

@parameter items [Array] The items to add to the queue.

If the queue is full, this method will block until there is space available.

Add multiple items to the queue. 
def enqueue(*items)
	while !items.empty?
		while limited?
			@full.wait
		end
		
		available = @limit - @items.size
		@items.concat(items.shift(available))
		
		@available.signal unless self.empty?
	end
end