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Now that multicore processors are coming to mobile devices, wouldn't it be great to take advantage of all those cores without having to manage threads? This concise book shows you how to use Apple's Grand Central Dispatch (GCD) to simplify programming on multicore iOS devices and Mac OS X.

Managing your application's resources on more than one core isn't easy, but it's vital. Apps that use only one core in a multicore environment will slow to a crawl. If you know how to program with Cocoa or Cocoa Touch, this guide will get you started with GCD right away, with many examples to help you write high-performing multithreaded apps.

• Package your code as block objects and invoke them with GCD
• Understand dispatch queues--the pools of threads managed by GCD
• Use different methods for executing UI and non-UI tasks
• Create a group of tasks that GCD can run all at once
• Instruct GCD to execute tasks only once or after a delay
• Discover how to construct your own dispatch queues

Vandad Nahavandipoor has developed software using Cocoa, Cocoa Touch, Assembly, Delphi, and .NET for many years. As a staff member of acompany that is a global leader in mobile money solutions in London, he has worked with some of the world's biggest brands--such as Visaand US Bank---to deliver mobile applications to their customers.Vandad brings an interest in management, leadership andentrepreneurship to his work, believing in the synergy that isachieved as a result of cooperation and working together in a team.