Question

Header :

@interface CodeTest : NSObject {
BOOL cancelThread;
}

-(void) testCode;
-(void) stopRunning;
-(void) startRunning;

@property (assign) BOOL cancelThread;
@end

Implementation :

-(void)stopRunning{
    self.cancelThread = YES;
}

-(void)startRunning{
    self.cancelThread = NO;

    [NSThread detachNewThreadSelector:@selector(testCode) toTarget:self withObject:nil];

}
-(void)testCode{
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    NSLog(@"STARTED");
    /* Std C99 code */
    while( conditions ){
            if(self.cancelThread){
                 conditions = NO;
            }
            ...
            ...
    }
    /* end of C code */
    [pool release];
}

As you can see, it tires to execute testCode on a separate thread and using the cancelThread BOOL as a stop execution flag in the separate thread.

I have the following issue :

• The compiler signals that self.cancelThread in the middle of the std c code is not valid (self is not defined). I think, it tries to interpret that statement as c code but this is obj-c.

There is something missing ?

UPDATE : It’s not related to missing {}’s as one of you suggested… The code works perfectly without the if(self.cancelThread){ conditions = NO; }.

Answer 1

-[CodeTest setCancelThread:]: unrecognized selector.

Means that you don’t have a setter defined for the cancelThread property. You’re missing

@synthesize cancelThread;

(in your @implementation section)