What is Most Optimized Thread Safe Way To Lock Resources for Singleton Pattern?

Varun Setia

6y2.9kC#

Problem Statement is: the lock statement is used in case of implementing the Thread Safe Singleton Pattern.
The question is, we need to lock a resource but using a lock(x){} statement is bit expensive as per the interviewer. What is the most efficient or optimum way to lock a resource without using lock statement?

Is there any catch or trick in this question?

1 Answer

one way to implement thread safe single is via use of static.

public sealed class Singleton
{
private static readonly Singleton obj = new Singleton();
public static Singleton Obj { get { return obj; } }

public sealed class Singleton
{
    private static readonly Singleton obj = new Singleton();
    public static Singleton Obj 
    { 
        get 
        { 
            return obj; 
        } 
    }
    private Singleton() {}
}

To access the instance of Singleton Class:
Singleton mySingleton = Singleton.Obj;

Aisha Omar3y