I have an app that uses Endpoint security.
I have 1 client that registered many AUTH and NOTIFY event types.
When I I recive an Endpoint Security message (event) and my handler is called. Which thread does it use?
If I have 1 client will it always just use the same 1 thread?
If not, can it ever happen that I register 1 client, and he will handle more then 1 event in the same time? regardless of the event type or any thing else
Your ES client callbacks run on a thread managed by the system. Callbacks for a given client are always serialised, that is, the callback for event N+1 won’t be called until you return from the callback for event N. If you have multiple clients there are no guarantees about the serialisation between the clients.
If I have 1 client will it always just use the same 1 thread?
No. Do not, for example, using thread-local storage to persist state between callbacks.
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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
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