Concurrent Programming in Mac OS X and iOS- Unleash Multicore Performance with G

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Concurrent Programming in Mac OS X and iOS- Unleash Multicore Performance with Grand Central Dispatch
Table of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
1. Introducing Block Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Short Introduction to Block Objects 1
Constructing Block Objects and Their Syntax 2
Variables and Their Scope in Block Objects 6
Invoking Block Objects 12
Memory Management for Block Objects 13
2. Programming Grand Central Dispatch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Short Introduction to Grand Central Dispatch 19
Different Types of Dispatch Queues 21
Dispatching Tasks to Grand Central Dispatch 22
Performing UI-Related Tasks 22
Performing Non-UI-Related Tasks Synchronously 27
Performing Non-UI-Related Tasks Asynchronously 29
Performing Tasks After a Delay 35
Performing a Task at Most Once 38
Running a Group of Tasks Together 40
Constructing Your Own Dispatch Queues 43
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