All the code touching that variable is on the main thread. So it's serialized
by that.
On 16 Mar, 2013, at 23:13, Allan Odgaard <lists+cocoa-...@simplit.com> wrote:
> On 16 Mar 2013, at 14:14, Roland King wrote:
>
>> […] you have a simple counter member variable, 'currentOperation'. It's set
>> to 0 when you have no operation and you increment it each time you make a
>> new one. The code looks like this (typed in mail) […]
>>
>> if( currentOperation == currentOperationAtQueueTime )
>> {
>> [ yourClass operationDidFinish ];
>> currentOperation = 0;
>> }
>
> Correct me if I’m wrong, but you can only set ‘currentOperation’ to zero if
> it’s a serial queue or you know it’s empty.
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