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dispatch (3) Library Functions Manual dispatch (3)

NAME

dispatch — the dispatch framework

SYNOPSIS

#include <dispatch/dispatch.h>

DESCRIPTION

The dispatch framework allows blocks to be scheduled for asynchronous and concurrent execution via the core functions described in dispatch_async (3) and dispatch_apply (3).

Dispatch queues are the basic units of organization of blocks. Several queues are created by default, and applications may create additional queues for their own use. See dispatch_queue_create (3) for more information.

Dispatch groups allow applications to track the progress of blocks submitted to queues and take action when the blocks complete. See dispatch_group_create (3) for more information.

The dispatch framework also provides functions to monitor underlying system events and automatically submit event handler blocks to dispatch queues.

SEE ALSO

dispatch_after (3), dispatch_api (3), dispatch_apply (3), dispatch_async (3), dispatch_data_create (3), dispatch_group_create (3), dispatch_io_create (3), dispatch_io_read (3), dispatch_object (3), dispatch_once (3), dispatch_queue_create (3), dispatch_semaphore_create (3), dispatch_source_create (3), dispatch_time (3) Darwin May 1, 2009 dispatch (3)