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How to detect whether a file is modified in iOS?
I don’t mean the real-time monitoring, because while the application is gone, it won’t detect anymore.
I’ve checked the attributes of the file, and couldn’t find the satisfied one.(Did I miss something?)
There maybe some check-sum generating solutions, but they will require much time.
(Is there any cheap check-sum generating algorithm?)
Which attributes did you check? With
fstat(), you should be able to compare thest_mtimeattribute of a file with a previously stored value.