Objective-C sucks!

a.m

@property (atomic, setter=setRunning:, getter=mIsRunning) BOOL mIsRunning;
@property (strong, nonatomic) FifoQueue *queue;

@end

@implementation BcxCommandQueueService

@synthesize mIsRunning;

#pragma mark - GETTERS

- (BOOL)mIsRunning {
    @synchronized(self) {
        return _mIsRunning;
    }
}

- (void)setRunning:(BOOL)isRunning {
    self.mIsRunning = isRunning;
}