aspx請求進行異步隊列控制處理

第 2 頁 IAsyncResult實現(xiàn)

IAsyncResult實現(xiàn)

異步返回處理對象實現(xiàn)也很簡單,實現(xiàn)一個Execute方法由隊列執(zhí)行,執(zhí)行完成后通過callBack方法來通知處理完成.

public class AspxAsyncResult : IAsyncResult
    {
        bool m_IsCompleted = false;
        private IHttpHandler mHandler;
        private HttpContext mContext;
        private AsyncCallback m_Callback;
        public AspxAsyncResult(HttpContext context, IHttpHandler handler, AsyncCallback cb)
        {
            mHandler = handler;
            mContext = context;
            m_Callback = cb;
        }
        #region IAsyncResult 成員
        public object AsyncState
        {
            get { return null; }
        }
        public WaitHandle AsyncWaitHandle
        {
            get { return null; }
        }
        public bool CompletedSynchronously
        {
            get { return false; }
        }
        public bool IsCompleted
        {
            get { return m_IsCompleted; }
        }
        #endregion
        public void Execute()
        {
            try
            {
                mHandler.ProcessRequest(mContext);
            }
            catch
            {
            }
            finally
            {
                try
                {
                    if (m_Callback != null)
                        m_Callback(this);
                }
                catch
                {
                }
                m_IsCompleted = true;
            }
        }
    }