Getting started with GCD in MacRuby & Rubymotion - Mateus - WeltGrand Central Dispatch Grand Central Dispatch is the apple way to perform concurrent programming, by using it you’re able to divide your program into peaces tasks that can be executed by a queue concurrently or serially. Since GCD is a low level C API, you can’t communicate directly with it, but MacRuby has a wrapper for that. What are Queues? You can think of Dispatch::Queues as workers waiting t
