static void Main(string[] args)
{
Singleton obj1 = Singleton.Instance;
Singleton obj2 = Singleton.Instance;
if (obj1 == obj2)
{
Console.WriteLine("SingleTon Successful");
}
ThreadSafeSingleton obj3 = ThreadSafeSingleton.Instance;
ThreadSafeSingleton obj4 = ThreadSafeSingleton.Instance;
if (obj3 == obj4)
{
Console.WriteLine("SingleTon Successful");
}
LazySingleton obj5 = LazySingleton.Instance;
LazySingleton obj6 = LazySingleton.Instance;
if (obj5 == obj6)
{
Console.WriteLine("SingleTon Successful");
}
}
public static ThreadSafeSingleton GetInstance()
{
lock (_lock)
{
if (_instance == null)
{
if (_isFirstThread)
{
_isFirstThread = false;
Thread.Sleep(1000);
}
_instance = new ThreadSafeSingleton();
}
}
return(_instance);
}
static void Main(string[] args)
{
var singletonA = Singleton.Instance;
var singletonB = Singleton.Instance;
Console.WriteLine("singletonA: " + singletonA.GetHashCode());
Console.WriteLine("singletonB: " + singletonB.GetHashCode());
ThreadSafeSingleton threadSafeX;
ThreadSafeSingleton threadSafeY;
Task <ThreadSafeSingleton> getX = ThreadSafeSingleton.GetInstanceAsync();
Task <ThreadSafeSingleton> getY = ThreadSafeSingleton.GetInstanceAsync();
Task.WaitAll(getX, getY);
threadSafeX = getX.Result;
threadSafeY = getY.Result;
Console.WriteLine("threadSafeX: " + threadSafeX.GetHashCode());
Console.WriteLine("threadSafeY: " + threadSafeY.GetHashCode());
}
