// --- 1 普通异步 ---
static void Main(string[] args)
{
DateTime dt = DateTime.Now;
RemoteObj rmtObj = new RemoteObj();
// 1 ---------------------------------------
//Console.WriteLine(rmtObj.Method1(1, 2, 2000));
// 2 ---------------------------------------
MyDelegate md = new MyDelegate(rmtObj.Method1);
IAsyncResult Iar = md.BeginInvoke(33, 12, 5000, null, null);
MainMethod();
if (!Iar.IsCompleted)
{
Iar.AsyncWaitHandle.WaitOne();//因为主方法阻塞3秒，异步方法阻塞2秒，所以这句是不会执行的
}
else
{
Console.WriteLine("结果是" + md.EndInvoke(Iar));
}
Console.WriteLine("用了" + ((TimeSpan)(DateTime.Now - dt)).TotalSeconds + "秒");
Console.ReadLine();
}
//---------------------------------------
public delegate int MyDelegate(int a, int b, int time);
class RemoteObj
{
public RemoteObj()
{
}
/**//// <summary>
/// 返回a+b之和，阻塞milliSecond
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <param name="second"></param>
/// <returns></returns>
public int Method1(int a, int b, int milliSecond)
{
Console.WriteLine("--- 异步方法开始 ---");
System.Threading.Thread.Sleep(milliSecond);
Console.WriteLine("--- 异步方法结束 ---");
return a + b;
}
}
异步的回调
private static MyDelegate md;
// --- 2 回调异步 ---
static void Main(string[] args)
{
DateTime dt = DateTime.Now;
//RemoteObject.MyObject app=(RemoteObject.MyObject)Activator.GetObject(typeof(RemoteObject.MyObject),System.Configuration.ConfigurationSettings.AppSettings["ServiceURL"]);
RemoteObj app = new RemoteObj();
md = new MyDelegate(app.Method1);
AsyncCallback ac = new AsyncCallback(CallBack1);
IAsyncResult Iar = md.BeginInvoke(21, 32, 5000, ac, null);
MainMethod();
Console.WriteLine("用了" + ((TimeSpan)(DateTime.Now - dt)).TotalSeconds + "秒");
Console.ReadLine();
}
public static void CallBack1(IAsyncResult Iar)
{
if (Iar.IsCompleted)
{
Console.WriteLine("结果是" + md.EndInvoke(Iar));
}
}
posted on 2010-12-08 20:48
Victor.Stone 阅读(293)
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.net framework