Re: Cancelable NSBlockOperations
Re: Cancelable NSBlockOperations
- Subject: Re: Cancelable NSBlockOperations
- From: Jamie Hardt <email@hidden>
- Date: Thu, 14 Jan 2010 12:02:41 -0800
On Jan 14, 2010, at 11:59 AM, Nick Zitzmann wrote:
> On Jan 14, 2010, at 12:30 PM, Jamie Hardt wrote:
>
>> How does one support -cancel in an NSBlockOperation? Testing [NSThread isCancelled] doesn't appear to work.
>
> The same way you do it with NSInvocationOperations - pass in the operation as an argument to the block and check the object's cancellation state using that argument.
The block that NSBlockOperation takes is (void)^(void), do you mean I have to declare it outside of the block scope and let the block copy the reference when it invokes?
Jamie_______________________________________________
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