I’ve used dispatch stuff. I found this with a quick google… it should be close
to what one would need to monitor a folder.
int fildes = open("/path/to/directory", O_RDONLY);
dispatch_queue_t queue =
dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_source_t source = dispatch_source_create(DISPATCH_SOURCE_TYPE_VNODE,
fildes, DISPATCH_VNODE_DELETE | DISPATCH_VNODE_WRITE | DISPATCH_VNODE_EXTEND |
DISPATCH_VNODE_RENAME | DISPATCH_VNODE_REVOKE, queue);
dispatch_source_set_event_handler(source, ^{
// ... handle changes
});
dispatch_source_set_cancel_handler(source, ^{
// ... handle cancel
});
dispatch_resume(source); // Start monitoring
// And sometime later
dispatch_source_cancel(source); // Stop monitoring
> On Dec 21, 2019, at 11:08, Gabriel Zachmann via Cocoa-dev
> <cocoa-dev@lists.apple.com> wrote:
>
> Is there a quick and easy way to check whether or not a directory tree has
> changed?
>
> I am only interested in file additions or deletions, somewhere beneath a
> specific root directory,
> e.g., ~/Data/some_directory.
>
> However, I am interested in such changes between different invocations of my
> program.
> So, when the user adds a file somewhere in the directory tree while my
> program is not running, I'd still like to detect that.
>
> Is there a quick and easy way to do this?
>
> Thanks a lot in advance.
> Best regards, Gabriel
>
>
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