CODEWITHSUNDEEP
iosiphonefilechecksum
Yun
Yun

Reputation: 5463

How to detect whether a file is modified in iOS?

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?)

Upvotes: 2

Views: 1636

Answers (2)

Alex Reynolds
Alex Reynolds

Reputation: 96947

Which attributes did you check? With fstat(), you should be able to compare the st_mtime attribute of a file with a previously stored value.

Upvotes: 1

trojanfoe
trojanfoe

Reputation: 122391

You can use stat (reference), to get the modification time of the file. You could then compare it against your stored value:

struct stat sb;
if (stat("/path/to/file", &sb) == 0)
{
    ... compare sb.st_mtimespec with stored value

}
else
{
    ... report error
}

This question is pretty close to yours.

Upvotes: 2

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