public static SingletonForMultithreading GetSingleton()
{
if (_singleton == null)
{
lock (_lock)
{
if (_singleton == null)
{
_singleton = new SingletonForMultithreading();
}
}
}
return(_singleton);
}
static void SingletonExample()
{
var singleton1 = Singleton.Singleton.GetSingleton();
var singleton2 = Singleton.Singleton.GetSingleton();
Console.WriteLine(singleton1.GetHashCode());
Console.WriteLine(singleton2.GetHashCode());
var singletonForMultithreading1 = SingletonForMultithreading.GetSingleton();
var singletonForMultithreading2 = SingletonForMultithreading.GetSingleton();
Console.WriteLine(singletonForMultithreading1.GetHashCode());
Console.WriteLine(singletonForMultithreading2.GetHashCode());
var singletonForMultithreadingWithoutLock1 = SingletonForMultithreadingWithoutLock.GetSingleton();
var singletonForMultithreadingWithoutLock2 = SingletonForMultithreadingWithoutLock.GetSingleton();
Console.WriteLine(singletonForMultithreadingWithoutLock1.GetHashCode());
Console.WriteLine(singletonForMultithreadingWithoutLock2.GetHashCode());
}
