NSTimer stops repeating

dziki_zbik · 08-26-2010, 08:11 AM

I have this annoying problems and it seriously driving me nuts.

I've made a NSTimer set for autorepeating every 0.5 sec but sometimes it repeats 10 times and then stops, sometimes 2 times and stops and sometimes it doesn't start at all.

I've get this in

GameView.h

Code:

NSTimer *fpsUpsTimer;
...
- (void)updateFpsUps:(NSTimer *)timer;

and in GameView.m
in the main thread I've tried

Code:

        fpsUpsTimer = [NSTimer scheduledTimerWithTimeInterval: 0.5
                                                       target: self
                                                     selector: @selector(updateFpsUps:)
                                                     userInfo: nil
                                                      repeats: YES];
        [fpsUpsTimer retain];

and I've tried

Code:

        fpsUpsTimer = [NSTimer timerWithTimeInterval: 0.5
                                              target: self
                                            selector: @selector(updateFpsUps:)
                                            userInfo: nil
                                             repeats: YES];
        [fpsUpsTimer retain];
        
        [[NSRunLoop mainRunLoop] addTimer:fpsUpsTimer forMode:NSDefaultRunLoopMode];
        [fpsUpsTimer fire];

and then I've tried that in separate thread and added timer to thread's run loop

my timer handler looks like this

Code:

- (void)updateFpsUps: (NSTimer *) timer
{
    fps = frames*2;
    ups = updates*2;
    frames = updates = 0;
    
    NSLog(@"\nfps: %d ups: %d", fps, ups);
}

So, why the heck this stupid timer doesn't feel like firing anymore and every time it behaves differently?