dispatch_after(3) BSD Library Functions Manual dispatch_after(3)
NAME
dispatch_after -- schedule blocks for deferred execution
SYNOPSIS
#include <dispatch/dispatch.h>
void
dispatch_after(dispatch_time_t when, dispatch_queue_t queue, void (^block)(void));
void
dispatch_after_f(dispatch_time_t when, dispatch_queue_t queue, void *context, void (*function)(void *));
DESCRIPTION
The dispatch_after() function submits the block to the given queue at the time specified by the when parameter. The when parameter is a
value created by dispatch_time() or dispatch_walltime().
For a more detailed description about submitting blocks to queues, see dispatch_async(3).
CAVEATS
dispatch_after() retains the passed queue.
Specifying DISPATCH_TIME_NOW as the when parameter is supported, but is not as efficient as calling dispatch_async().
The result of passing DISPATCH_TIME_FOREVER as the when parameter is undefined.
FUNDAMENTALS
The dispatch_after() function is a wrapper around dispatch_after_f().
SEE ALSO
dispatch(3), dispatch_async(3), dispatch_time(3)
Darwin May 1, 2009 Darwin