man/dispatch.3

   1 .\" Copyright (c) 2008-2012 Apple Inc. All rights reserved.
   2 .Dd May 1, 2009
   3 .Dt dispatch 3
   4 .Os Darwin
   5 .Sh NAME
   6 .Nm dispatch
   7 .Nd the dispatch framework
   8 .Sh SYNOPSIS
   9 .Fd #include <dispatch/dispatch.h>
  10 .Sh DESCRIPTION
  11 The dispatch framework allows blocks to be scheduled for asynchronous and
  12 concurrent execution via the core functions described in
  13 .Xr dispatch_async 3 and
  14 .Xr dispatch_apply 3 .
  15 .Pp
  16 Dispatch queues are the basic units of organization of blocks. Several queues
  17 are created by default, and applications may create additional queues for their
  18 own use. See
  19 .Xr dispatch_queue_create 3
  20 for more information.
  21 .Pp
  22 Dispatch groups allow applications to track the progress of blocks submitted to
  23 queues and take action when the blocks complete. See
  24 .Xr dispatch_group_create 3
  25 for more information.
  26 .Pp
  27 The dispatch framework also provides functions to monitor underlying system
  28 events and automatically submit event handler blocks to dispatch queues.
  29 .Sh SEE ALSO
  30 .Xr dispatch_after 3 ,
  31 .Xr dispatch_api 3 ,
  32 .Xr dispatch_apply 3 ,
  33 .Xr dispatch_async 3 ,
  34 .Xr dispatch_data_create 3 ,
  35 .Xr dispatch_group_create 3 ,
  36 .Xr dispatch_io_create 3 ,
  37 .Xr dispatch_io_read 3 ,
  38 .Xr dispatch_object 3 ,
  39 .Xr dispatch_once 3 ,
  40 .Xr dispatch_queue_create 3 ,
  41 .Xr dispatch_semaphore_create 3 ,
  42 .Xr dispatch_source_create 3 ,
  43 .Xr dispatch_time 3