Before I try to respond, I'd just like to say you've been mentioning threads a lot, but you haven't said anything that convinces me that more than one thread is necessary for what you're trying to do. Unless you're doing some serious number crunching, video encoding, curing cancer, etc. it's likely that you won't need any threads other than the main thread. If, indeed, you simply want a timer to fire every-so-often, then forget about threads - for this purpose, one thread is all you'll need.
> But the doSomething is not getting called at all. > May be because this thread is busy doing something else, so do I have to > setup the timer in say main Thread. You should be able to answer whether "this thread is busy doing something else": Do you have a while() loop that never exits? How about a sleep(666)? Why do you think the thread is "busy doing something else" - is your app beachballing? Are you sure that the timer is being created at all? (Put a breakpoint or an NSLog(@"timer created"); before the line that creates the timer.) Further, use the debugger! Pause your app after it's started up, and see what it's doing. If it's in a CFRunLoop-derived function (ie, mach_msg_trap()) then your run loop should be happily doing its thing. > Earlier I was doing so, by setting up the timer by calling this setting up > method as [self performSelectorOnMainThread:............], and it was > working, but even after invalidating the timer, the timer was still > referencing the object that contained NSTimer *timer. That doesn't make sense - performSelectorOnMainThread:... doesn't return a timer, so how could you invalidate it? Furthermore, I don't understand "the timer was still referencing the object that contained NSTimer *timer", nor do I see how that might relate to the timer successfully invoking your method. :-/ So let's back up. From a user's perspective, what are you trying to do? Also, it would probably do you some good to read these: http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/Timers/Timers.html http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/Multithreading/Introduction/Introduction.html _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
