Base.UPoller.AcceptAsync C# (CSharp) Method

		public Task<USocket> AcceptAsync()
		{
			if (this.AcceptTcs != null)
			{
				throw new Exception("do not accept twice!");
			}

			var tcs = new TaskCompletionSource<USocket>();

			// 如果有请求连接缓存的包,从缓存中取
			if (this.connQueue.Count > 0)
			{
				IntPtr ptr = this.connQueue.FirstKey;
				this.connQueue.Remove(ptr);

				USocket socket = new USocket(ptr, this);
				this.USocketManager.Add(ptr, socket);
				tcs.SetResult(socket);
			}
			else
			{
				this.AcceptTcs = tcs;
			}
			return tcs.Task;
		}