Pass in async lambda - CSharp Thread Asynchronous

CSharp examples for Thread Asynchronous:Async

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Description

Pass in async lambda

Demo Code

using System;/*w  ww . j  a  v a 2s . com*/
using System.IO;
using System.Threading;

class Program
{
    static void Main(string[] args)
    {
        Machine machine = new Machine();
        machine.RegisterTempWatcher((double prev, double current) =>
        {
            Console.WriteLine($"Temperature changed from {prev} to {current}");
        });
        machine.RegisterTempWatcher(async (double prev, double current) =>
        {
            using (StreamWriter writer = new StreamWriter("temps.txt", true))
            {
                await writer.WriteLineAsync($"Machine temperature changed from {prev} to {current}");
            }
        });
        machine.TurnOn();
    }
}
public delegate void TempChanged(double prev, double current);
public class Machine
{
    private double _currentTemp = 36;
    private TempChanged _tempChanged;
    public double CurrentTemp
    {
        get
        {
            return _currentTemp;
        }
        set
        {
            if (_currentTemp != value)
            {
                var prev = _currentTemp;
                _currentTemp = value;
                OnTempChanged(prev, value);
            }
        }
    }
    public void TurnOn()
    {
        while (CurrentTemp < 100)
        {
            Thread.Sleep(1000);
            CurrentTemp++;
        }
    }
    public void RegisterTempWatcher(TempChanged watcher)
    {
        _tempChanged += watcher;
    }
    private void OnTempChanged(double prev, double current)
    {
        if (_tempChanged != null)
        {
            _tempChanged(prev, current);
        }
    }
}

Result


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