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dispatch Framework Reference Grand Central Dispatch (GCD) Reference

Document Revision History

This table describes the changes to Grand Central Dispatch (GCD) Reference.

Date

Notes

2014-09-17

Documented the memory pressure APIs.

2013-12-16

Clarified that a dispatch queue's priority is inherited from its target queue in dispatch_set_target_queue, not by its target queue.

2013-10-22

Updated for ARC support in OS X v10.8, added information about changing target queues, filled in iOS availability information, and enhanced the discussion for dispatch_source_get_data.

2011-11-18

Added iOS availability information.

2011-10-12

Added new symbols introduced in OS X v10.7 and iOS 5.

2010-05-11

Updated to reflect support for iOS.

2010-02-01

Fixed several typographical errors and added some missing constants.

2009-08-19

New document that describes the Grand Central Dispatch API for efficient use of multicore systems.