Exemple #1
0
        // 设置取消回调,来兼容老的api
        async Task <int> PingAsync(CancellationToken cancellation)
        {
            var ping = new Ping();

            // 这些回调会轮流保持Ping对象的生命,为了避免内存及资源的溢出,当不再需要回调时,必须丢弃回调注册
            using var _ = cancellation.Register(() => ping.Cancel()); //设置取消的回调
            return(await Task.FromResult(1));
        }
Exemple #2
0
 private static void RunPing()
 {
     try
     {
         _ping1 = ExternalLib.Request.Ping(new string[] { "2.16.840.1.114416.0.57513008" });
         RequestStatusChangedItem item = _ping1.Execute(TimeSpan.FromSeconds(30));
         if (null == item)
         {
             _ping1.Cancel();
         }
     }
     catch (Exception ex)
     {
         Console.WriteLine("RunPing: " + ex.Message);
     }
 }