On 6 Mar 2012, at 11:51 AM, Jan E. Schotsman wrote:
> I have an array of progress values (number objects) for subprojects, from which I calculate the overall progress .
> The array is an atomic property of the project class.
>
> Is it safe to access this array from multiple threads, using methods like objectAtIndex and replaceObjectAtIndex?
It is safe to access it from multiple threads as long as it is not being changed by any thread during that time. (If it's an immutable array, then you don't have to worry about that.)
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