how to stop nsthread

Question

I am using a thread to update messages in background in my application. The thread is started in my messages class.

Messages.m

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Answer 1

( I am assuming here that you create an instance of Messages somewhere else in the program )

According to your provided code you are creating a new Messages instance as part of your sign out process ( which starts a new thread ), canceling that new thread ( -cancel is a proper way to stop a thread -- if your thread method follows the considerations listed in the documentation ), then releasing your ( extra? ) Messages instance. At this point your original Messages instance is still around, and the thread from that is still running.

If you want the thread to stop when the instance of the class is deallocated, you probably should take care of that in a -dealloc method on Messages and make sure your original Messages instance is released at the proper time.