| .\" Copyright (c) 2008-2012 Apple Inc. All rights reserved. |
| .Dd May 1, 2009 |
| .Dt dispatch 3 |
| .Os Darwin |
| .Sh NAME |
| .Nm dispatch |
| .Nd the dispatch framework |
| .Sh SYNOPSIS |
| .Fd #include <dispatch/dispatch.h> |
| .Sh DESCRIPTION |
| The dispatch framework allows blocks to be scheduled for asynchronous and |
| concurrent execution via the core functions described in |
| .Xr dispatch_async 3 and |
| .Xr dispatch_apply 3 . |
| .Pp |
| 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 |
| .Xr dispatch_queue_create 3 |
| for more information. |
| .Pp |
| Dispatch groups allow applications to track the progress of blocks submitted to |
| queues and take action when the blocks complete. See |
| .Xr dispatch_group_create 3 |
| for more information. |
| .Pp |
| The dispatch framework also provides functions to monitor underlying system |
| events and automatically submit event handler blocks to dispatch queues. |
| .Sh SEE ALSO |
| .Xr dispatch_after 3 , |
| .Xr dispatch_api 3 , |
| .Xr dispatch_apply 3 , |
| .Xr dispatch_async 3 , |
| .Xr dispatch_data_create 3 , |
| .Xr dispatch_group_create 3 , |
| .Xr dispatch_io_create 3 , |
| .Xr dispatch_io_read 3 , |
| .Xr dispatch_object 3 , |
| .Xr dispatch_once 3 , |
| .Xr dispatch_queue_create 3 , |
| .Xr dispatch_semaphore_create 3 , |
| .Xr dispatch_source_create 3 , |
| .Xr dispatch_time 3 |
