NetAssociation's -enable re-registers the instance as observer

jbenet / ios-ntp

SNTP implementation for iOS

http://code.google.com/p/ios-ntp/

MIT License

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NetAssociation's -enable re-registers the instance as observer #20

Closed bogdanbolchis closed 9 years ago

bogdanbolchis commented 9 years ago

This causes -finish and -enable to be called additional times for the same instance. Reproducible by locking/unlocking the phone. After unlocking for the 5th time, the UI starts to lag while -enable is being called, and ultimately leads to a crash in GCDAsyncUDPSocket.