objective c - Blocks in Obj-C for performSelector: onThread:? -

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while wouldn't hard spin own method this, wouldn't efficient as

- (void)performselector:(sel)aselector onthread:(nsthread *)thr withobject:(id)arg waituntildone:(bool)wait;

is there built-in method blocks?

if not, there way can avoid creating object, putting block on it, , passing selector method? wonder if there problems data accessed within block...

the blocks equivalent performselector: method cfrunloopperformblock — need reference thread's cfrunloop.

have @ apple's documentation function , note caveat in discussion — you'll want call cfrunloopwakeup afterwards block executed right away.


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