using System;
using System.Collections.Concurrent;
using System.Threading;

namespace ETModel
{
	public class OneThreadSynchronizationContext : SynchronizationContext
	{
		// 线程同步队列,发送接收socket回调都放到该队列,由poll线程统一执行
		private readonly ConcurrentQueue<Action> queue = new ConcurrentQueue<Action>();

		private void Add(Action action)
		{
			this.queue.Enqueue(action);
		}

		public void Update()
		{
			while (true)
			{
				Action a;
				if (!this.queue.TryDequeue(out a))
				{
					return;
				}
				a();
			}
		}

		public override void Post(SendOrPostCallback callback, object state)
		{
			this.Add(() => { callback(state); });
		}
	}
}