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OS X Deployment Target: 10.11

Given an NSTask, that has an assigned qualityOfService what is the recommended way to be notified when the task exits (i.e. waitUntilExit) without blocking?

  1. A NSBackgroundActivityScheduler.

    • Assigned the same quality of service as that of the NSTask.
    • Use scheduleWithBlock to waitUntilExit
    • Finally, dispatch_async to the main queue and post a notification.

  2. A dispatch_queue_t, using dispatch_get_global_queue.

    • Switch on the quality of server of the NSTask to decide the QoS of the queue.
    • dispatch_async a block to waitUntilExit
    • Finally, dispatch_async to the main queue and post a notification.

  3. Some other way?

qnoid
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1 Answers1

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You can use NSTask's terminationHandler property.

rocky
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