[Mono-bugs] [Bug 45875][Cri] New - Async Sockets Operations fail

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Changed by giuseppe.greco@agamura.com.

http://bugzilla.ximian.com/show_bug.cgi?id=45875

--- shadow/45875	Sun Jul  6 07:35:29 2003
+++ shadow/45875.tmp.10422	Sun Jul  6 07:35:29 2003
@@ -0,0 +1,116 @@
+Bug#: 45875
+Product: Mono/Class Libraries
+Version: unspecified
+OS: Red Hat 9.0
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Critical
+Component: System
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: giuseppe.greco@agamura.com               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Summary: Async Sockets Operations fail
+
+Please fill in this template when reporting a bug, unless you know what you
+are doing.
+
+Description of Problem:
+Async sockets operations do not work (see the small program
+here below).
+
+
+Steps to reproduce the problem:
+
+1. Write a small application like this:
+
+using System;
+using System.Net;
+using System.Net.Sockets;
+using System.Threading;
+                                                                          
+                         
+public class MySender
+{
+  private static bool sent = false;
+                                                                          
+                         
+  public static void Main()
+  {
+    byte[] data = new byte[10];
+    for (int i = 0; i < 10; i++) {
+      data[i] = (byte) i;
+    }
+                                                                          
+                         
+    EndPoint endPoint=
+      (EndPoint) new IPEndPoint(IPAddress.Parse("127.0.0.1"), 9000);
+                                                                          
+                         
+    Socket socket = new Socket(
+      AddressFamily.InterNetwork,
+      SocketType.Dgram,
+      ProtocolType.Udp);
+                                                                          
+                         
+    socket.BeginSendTo(
+      data,
+      0,
+      data.Length,
+      SocketFlags.None,
+      endPoint,
+      new AsyncCallback(new MySender().AsyncSend),
+      socket);
+                                                                          
+                         
+    while (!sent) {
+      Thread.Sleep(10);
+    }
+  }
+                                                                          
+                         
+  void AsyncSend(IAsyncResult ar)
+  {
+    Socket socket = (Socket) ar;
+    socket.EndSendTo(ar);
+    sent = true;
+  }
+}
+
+
+2. Compile it:
+   mcs -t:exe -out:test.exe *.cs
+
+
+3. Run it:
+   mono ./test.exe
+ 
+
+Actual Results:
+The application above crashes and reports the
+following error messages:
+
+Unhandled Exception: System.InvalidCastException:
+Cannot cast from source type t o destination type
+in <0x00027> 00 .MySender:AsyncSend (System.IAsyncResult)
+in <0x0004e> 01 System.MulticastDelegate:invoke_void_IAsyncResult
+(System.IAsync Result)
+in <0x0009c> 00 .Worker:End ()
+in <0x00077> 00 .Worker:SendTo ()
+in <0x00043> 01 System.MulticastDelegate:invoke_void ()
+
+
+Expected Results:
+The application should send the datagram
+without crashing.
+
+
+How often does this happen? 
+Always.
+
+
+Additional Information:
+This application works fine with .NET on Windows.