static void MultiThreadDemo()
{
Task <ThreadSafe_1> task1 = new Task <ThreadSafe_1>(Thread1);
Task <ThreadSafe_1> task2 = new Task <ThreadSafe_1>(Thread2);
task1.Start();
task2.Start();
Console.WriteLine($"Only one instance: {task1.Result == task2.Result}");
Console.WriteLine($"---------------");
Parallel.Invoke(() => Thread3(), () => Thread4());
ThreadSafe_1 Thread1()
{
ThreadSafe_1 singleton = ThreadSafe_1.Instance;
singleton.Name = "t1";
singleton.Age = 20;
Console.WriteLine($"-- Name:{singleton.Name}, Age: {singleton.Age}");
return(singleton);
}
ThreadSafe_1 Thread2()
{
ThreadSafe_1 singleton = ThreadSafe_1.Instance;
singleton.Name = "t2";
Console.WriteLine($"-- Name:{singleton.Name}, Age: {singleton.Age}");
return(singleton);
}
void Thread3()
{
ThreadSafe_2 singleton = ThreadSafe_2.Instance;
singleton.Name = "t3";
singleton.Age = 20;
Console.WriteLine($"-- Name:{singleton.Name}, Age: {singleton.Age}");
}
void Thread4()
{
ThreadSafe_2 singleton = ThreadSafe_2.Instance;
singleton.Name = "t4";
Console.WriteLine($"-- Name:{singleton.Name}, Age: {singleton.Age}");
}
}
static void SingleThreadDemo()
{
ThreadUnsafe singleton1 = ThreadUnsafe.Instance;
singleton1.Name = "sunny";
singleton1.Age = 20;
ThreadUnsafe singleton2 = ThreadUnsafe.Instance;
Console.WriteLine($"Name:{singleton1.Name}, Age: {singleton2.Age}");
Console.WriteLine($"Only one instance: {singleton1 == singleton2}");
ThreadSafe_1 threadSafe_1 = ThreadSafe_1.Instance;
threadSafe_1.Name = "sunny";
threadSafe_1.Age = 20;
ThreadSafe_1 threadSafe_2 = ThreadSafe_1.Instance;
Console.WriteLine($"Name:{threadSafe_1.Name}, Age: {threadSafe_2.Age}");
Console.WriteLine($"Only one instance: {threadSafe_1 == threadSafe_2}");
}