public static SingletonNotThreadSafe GetInstance(string value)
{
if (instance == null)
{
if (firstThread)
{
firstThread = false;
//no locking means there is a chance two threads can access this code simultaneously
//simulating this chance by sleeping the first thread
Thread.Sleep(500);
}
instance = new SingletonNotThreadSafe();
instance.Value = value;
}
return(instance);
}
public static void TestNotThreadSafeSingleton(string value)
{
var singleton = SingletonNotThreadSafe.GetInstance(value);
Console.WriteLine(singleton.Value);
}