public CometAsyncResult(ChatRequest chatRequest, HttpContext context, AsyncCallback callBack, object asyncState)
{
this.Request = chatRequest;
this.Response = new ChatResponse();
this.BeginTime = DateTime.Now;
this.Context = context;
this.AsyncState = asyncState;
this.CallBack = callBack;
}
public IAsyncResult BeginProcessRequest(HttpContext context, AsyncCallback cb, object extraData)
{
ChatRequest request = new ChatRequest();
request.Identity = 1;
int lastId =0;
if (!string.IsNullOrEmpty(context.Request.QueryString["lastid"]))
{
int.TryParse(context.Request.QueryString["lastid"],out lastId);
}
request.lastId = lastId;
//异步请求将请求放入自定义线程池内,由消息抽发或者定时轮询处理
//Chunked很难处理浏览器未加载完问题，暂时不做，有消息即返回
CometAsyncResult result = new CometAsyncResult(request,context, cb, extraData);
result.HandleCometRequest();
return result;
}