Howdy all, first-time poster here. I'm pretty new to Objective-C and
it's associated run-time environment, so I apologize if this is a
total newbie question that has been answered before (I couldn't find
anything, but I might not know where to look.)
My problem is this: I have an NSTimer which I set up in my NSView's -
awakeFromNib method. Also in -awakeFromNib, I set create an NSDate
object as part of the NSView. This all works fine. The problem is,
when my timer fires, if I try to do anything at all with the NSDate
object I created before, the program chokes. Here's the relevant
portion of the code (I've stripped out what appears to be irrelevant;
if anyone wants to see more, that's fine.)
BlobView.h:
@interface BlobView : NSOpenGLView
{
NSTimer* updateTimer;
NSDate* lastUpdate;
}
- (void) updateTimer: (NSTimer *) timer;
@end
BlobView.m:
@implementation BlobView
- (void) awakeFromNib {
lastUpdate = [NSDate date];
NSLog(@"%lf", [lastUpdate timeIntervalSinceNow]); // This works fine
updateTimer = [NSTimer scheduledTimerWithTimeInterval: 1.0 / 30.0
target: self
selector: @selector(updateTimer:)
userInfo: nil
repeats: YES];
}
- (void) updateTimer: (NSTimer *) timer {
NSLog(@"%lf", [lastUpdate timeIntervalSinceNow]); // This produces a
SIGBUS
}
@end
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