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I need an object/class that keeps data synchronous over multiple processes. Like a singleton instance that works across processes. Is there already a built-in class that can handle this or what’s the best way to implement such a thing (NSConnection, NSDistributedNotificationCenter, etc… ?)
Regards, Erik
Update:
Currently I have implemented such a thing using NSUserDefaults domains and syncing them to disc. But actually I prefer to avoid file system access, because it stresses the disc.
The filesystem will do that for you, or a database. Or you could even serve the shared data via Distributed Objects from a single server process.