Based on Apple Concurrency Programming Guide and Grand Central Dispatch (GCD). There are two options for GCD calls.
"Block" Flavor. dispatch_block_ta fragrance that can use the standard Swift closure:
void dispatch_async( dispatch_queue_t queue,
dispatch_block_t block );
In cases where a block lock allocates storage on the stack
typedef void (^dispatch_block_t)(void);
"Function" Aroma. An attribute dispatch_function_tthat has a context object and a function pointer.
void dispatch_async_f( dispatch_queue_t queue,
void *context,
dispatch_function_t work );
The context object assigned to applications is passed to the submit function workas a parameter to the object pointer void *.
typedef void (*dispatch_function_t)(void *);
_f, dispatch_async_f dispatch_sync_f , .
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- , Grand Central Dispatch _f context + fuction Swift?