ET9_WebGL_Dev/Book/Example/Example2_2/Program.cs

using System;
using System.Threading;
using System.Threading.Tasks;
using ETModel;

namespace Example2_2
{
    class Program
    {
        private static int loopCount = 0;
        
        static void Main(string[] args)
        {
            OneThreadSynchronizationContext _ = OneThreadSynchronizationContext.Instance;

            Console.WriteLine($"主线程: {Thread.CurrentThread.ManagedThreadId}");
            
            Crontine();
            
            while (true)
            {
                OneThreadSynchronizationContext.Instance.Update();
                
                Thread.Sleep(1);
                
                ++loopCount;
                if (loopCount % 10000 == 0)
                {
                    Console.WriteLine($"loop count: {loopCount}");
                }
            }
        }

        private static async void Crontine()
        {
            await WaitTimeAsync(5000);
            Console.WriteLine($"当前线程: {Thread.CurrentThread.ManagedThreadId}, WaitTimeAsync finsih loopCount的值是: {loopCount}");
            await WaitTimeAsync(4000);
            Console.WriteLine($"当前线程: {Thread.CurrentThread.ManagedThreadId}, WaitTimeAsync finsih loopCount的值是: {loopCount}");
            await WaitTimeAsync(3000);
            Console.WriteLine($"当前线程: {Thread.CurrentThread.ManagedThreadId}, WaitTimeAsync finsih loopCount的值是: {loopCount}");
        }
        
        private static Task WaitTimeAsync(int waitTime)
        {
            TaskCompletionSource<bool> tcs = new TaskCompletionSource<bool>();
            Thread thread = new Thread(()=>WaitTime(waitTime, tcs));
            thread.Start();
            return tcs.Task;
        }
        
        /// <summary>
        /// 在另外的线程等待
        /// </summary>
        private static void WaitTime(int waitTime, TaskCompletionSource<bool> tcs)
        {
            Thread.Sleep(waitTime);
            
            // 将tcs扔回主线程执行
            OneThreadSynchronizationContext.Instance.Post(o=>tcs.SetResult(true), null);
        }
    }
}