Dispatch I/O Dispatch Source System Event Monitoring T dispatch_block_t Executing Tasks Synchronously dispatch_sync dispatch_sync_f dispatch_async_and_wait dispatch_async_and_wait_f dispatch_barrier_async_and_wait dispatch_barrier_async_and_wait_f Executing a Task Only Once dispat...
022*:GCD源码底层探索 (dispatch_group_async dispatch_group_enter dispatch_group_leave) _dispatch_call_block_and_release (dx_push pthread_creat dx_invoke)dispatch_semaphore_signal wait create 问题 _dispatch_call_block_and_release执行任务 同步回调,block执行 block回调:底层通过dx_push递归,会重定向到根...
T dispatch_function_t T dispatch_block_t Executing Tasks Synchronously dispatch_sync dispatch_sync_f dispatch_async_and_wait dispatch_async_and_wait_f dispatch_barrier_async_and_wait dispatch_barrier_async_and_wait_f Executing a Task Only Once dispatch_once dispatch_once_f T ...
extern void dispatch_barrier_async_and_wait(dispatch_queue_t queue, dispatch_block_tblock); Parameters queue The queue on which to submit the block. This parameter can’t be NULL. block The block that contains the work to perform. This block has no return value and no parameters. This ...
externvoiddispatch_barrier_async_and_wait(dispatch_queue_tqueue,dispatch_block_tblock); Parameters queue The queue on which to submit the block. This parameter can’t beNULL. block The block that contains the work to perform. This block has no return value and no parameters. This parameter ...
voiddispatch_barrier_async_and_wait_f(dispatch_queue_tqueue,void*context,dispatch_function_twork); Parameters queue The queue on which to submit the function. This parameter cannot beNULL. context The app-defined context parameter to pass to the function. ...
voiddispatch_barrier_async_and_wait_f(dispatch_queue_tqueue,void*context,dispatch_function_twork); Parameters queue The queue on which to submit the function. This parameter cannot beNULL. context The app-defined context parameter to pass to the function. ...
voiddispatch_barrier_async_and_wait_f(dispatch_queue_tqueue,void*context,dispatch_function_twork); Parameters queue The queue on which to submit the function. This parameter cannot beNULL. context The app-defined context parameter to pass to the function. ...
voiddispatch_barrier_async_and_wait_f(dispatch_queue_tqueue,void*context,dispatch_function_twork); Parameters queue The queue on which to submit the function. This parameter cannot beNULL. context The app-defined context parameter to pass to the function. ...
voiddispatch_barrier_async_and_wait_f(dispatch_queue_tqueue,void*context,dispatch_function_twork); Parameters queue The queue on which to submit the function. This parameter cannot beNULL. context The app-defined context parameter to pass to the function. ...