socket服务端，BeginReceive产生未知错误

2013-10-01

socket服务端，BeginReceive产生未知异常halo 各位，我们做了一个socket服务，部署后经常崩溃，系统日志记录如

socket服务端，BeginReceive产生未知异常
halo 各位，我们做了一个socket服务，部署后经常崩溃，系统日志记录如下，搞不清楚问题在哪里，请高手们请教下，谢谢。


private static ManualResetEvent AllDone = new ManualResetEvent(false);

private static void AcceptCallback(IAsyncResult ar)
{
    try
    {
        AllDone.Set();

        Socket listener = (Socket)ar.AsyncState;
        Socket handler = listener.EndAccept(ar);

        Entity entity = new Entity()
        {
            SocketInstance = handler
        };

        // ...

        handler.BeginReceive(entity.TempBuffer, 0, 1024, 0, new AsyncCallback(ReadCallback), entity);
    }
    catch (Exception ex)
    {
        WriteErrorLog(ex);
    }
}

private static void ReadCallback(IAsyncResult ar)
{
    try
    {
        Entity entity = (Entity)ar.AsyncState;
        Socket handler = entity.SocketInstance;

        int bytReceiveLen = handler.EndReceive(ar);

        if (bytReceiveLen > 0)
        {
            entity.LastCommunicaTime = DateTime.Now;
            GeneralHelper.ByteHelper.BytArrAppend(ref entity.FullBuffer, entity.TempBuffer, bytReceiveLen);

            if (bytReceiveLen < 1024)
            {
                // ...
            }

            handler.BeginReceive(entity.TempBuffer, 0, 1024, 0, new AsyncCallback(ReadCallback), entity);
        }
        else
        {
            RemoveEntity(handler);
        }
    }
    catch (SocketException se)
    {
        WriteErrorLog(ex);
    }
    catch (Exception ex)
    {
        WriteErrorLog(ex);
    }
}

系统日志记录了以下异常：
Application: SocketServer.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.Net.Sockets.SocketException
Stack:
   at System.Net.Sockets.Socket.BeginReceive(Byte[], Int32, Int32, System.Net.Sockets.SocketFlags, System.AsyncCallback, System.Object)
   at SocketServer.Program.ReadCallback(System.IAsyncResult)
   at System.Net.LazyAsyncResult.Complete(IntPtr)
   at System.Net.ContextAwareResult.CompleteCallback(System.Object)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Net.ContextAwareResult.Complete(IntPtr)
   at System.Net.LazyAsyncResult.ProtectedInvokeCallback(System.Object, IntPtr)
   at System.Net.Sockets.BaseOverlappedAsyncResult.CompletionPortCallback(UInt32, UInt32, System.Threading.NativeOverlapped*)
   at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32, UInt32, System.Threading.NativeOverlapped*)
[解决办法]
http://www.oschina.net/p/supersocket
------解决方案--------------------

我也想做一个服务端，，用了这个框架，，，客户可是我的客户端有个问题还没有搞定，不过这个希望对你有帮助
[解决办法]
当调试器中断在异常处之后，你可以单击“调用堆栈”来看每一层次的调用入口时的变量值。也可以提前设置（条件）断点。也可以在许多处设置变量监视。也可以在代码中使用

Debug.Print(....)

输出真正的运行日志（而不是仅仅有个异常而已）。

进行调试。

热点排行

C#

socket服务端，BeginReceive产生未知错误