sync2mutex

Sync2Mutex.m

@implementation TestMutex {
    NSObject *mutex_1;
    NSObject *mutex_2;
}

- (instancetype)init {
    if (self = [super init]) {
        mutex_1 = [NSObject new];
        mutex_2 = [NSObject new];
    }
    return self;
}

// Thread A and Thread B will be calling this and will not block
// Thread C and Thread D from calling secondMethod
- (void)firstMethod {
    @synchronized(mutex_1) {
        // Deals with Resource 1
    }
}

// Thread C and Thread D will be calling this and will not block
// Thread A and Thread B from calling firstMethod
- (void)secondMethod {
    @synchronized(mutex_2) {
        // Deals with Resource 2
    }
}

@end