Thread Local Context

using System;
using System.Threading;

class Program
{
    static readonly ThreadLocal<int> WorkerScore = new ThreadLocal<int>(() => 0);
    static int boost;
    static int alphaResult;
    static int betaResult;

    static void AlphaWorker()
    {
        WorkerScore.Value = boost + 10;
        alphaResult = WorkerScore.Value;
    }

    static void BetaWorker()
    {
        WorkerScore.Value = boost + 20;
        betaResult = WorkerScore.Value;
    }

    static void Main()
    {
        int extra = 137;
        boost = extra;

        Thread alpha = new Thread(AlphaWorker);
        Thread beta = new Thread(BetaWorker);

        alpha.Start();
        beta.Start();

        alpha.Join();
        beta.Join();

        int total = alphaResult + betaResult;
        Console.WriteLine($"extra={extra}");
        Console.WriteLine($"total={total}");
    }
}

using System;
using System.Threading;

class Program
{
    static readonly ThreadLocal<int> WorkerScore = new ThreadLocal<int>(() => 0);
    static int boost;
    static int alphaResult;
    static int betaResult;

    static void AlphaWorker()
    {
        WorkerScore.Value = boost + 10;
        alphaResult = WorkerScore.Value;
    }

    static void BetaWorker()
    {
        WorkerScore.Value = boost + 20;
        betaResult = WorkerScore.Value;
    }

    static void Main()
    {
        int extra = 137;
        boost = extra;

        Thread alpha = new Thread(AlphaWorker);
        Thread beta = new Thread(BetaWorker);

        alpha.Start();
        beta.Start();

        alpha.Join();
        beta.Join();

        int total = alphaResult + betaResult;
        Console.WriteLine($"extra={extra}");
        Console.WriteLine($"total={total}");
    }
}

using System;
using System.Threading;

class Program
{
    static readonly ThreadLocal<int> WorkerScore = new ThreadLocal<int>(() => 0);
    static int boost;
    static int alphaResult;
    static int betaResult;

    static void AlphaWorker()
    {
        WorkerScore.Value = boost + 10;
        alphaResult = WorkerScore.Value;
    }

    static void BetaWorker()
    {
        WorkerScore.Value = boost + 20;
        betaResult = WorkerScore.Value;
    }

    static void Main()
    {
        int extra = 137;
        boost = extra;

        Thread alpha = new Thread(AlphaWorker);
        Thread beta = new Thread(BetaWorker);

        alpha.Start();
        beta.Start();

        alpha.Join();
        beta.Join();

        int total = alphaResult + betaResult;
        Console.WriteLine($"extra={extra}");
        Console.WriteLine($"total={total}");
    }
}