Several connections crashes app - Forum

Irdis

2012-09-10, 14:54 #1

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Subject: Several connections crashes app

When i have several connection and try to connect them simultaneously agsXmpp crashes my proccess. Another maybe usefull thing that I establish connection from one thread (connection.Open()). Also straight before crash happens I catch InvalidTokenException.

May be I should wait while first client is loged in and only then connect to another server??
My agsXMPP version 1.1.0.0.
And how can i deal with that kind of crashes?
Exception:
An unhandled exception occurred and the process was terminated.

Application ID: DefaultDomain

Process ID: 4012

Exception: System.InvalidOperationException

Message: EndRead can only be called once for each asynchronous operation.

StackTrace: at System.Net.Security._SslStream.EndRead(IAsyncResult asyncResult)
   at System.Net.Security.SslStream.EndRead(IAsyncResult asyncResult)
   at agsXMPP.net.ClientSocket.EndReceive(IAsyncResult ar)
   at System.Net.LazyAsyncResult.Complete(IntPtr userToken)
   at System.Net.LazyAsyncResult.ProtectedInvokeCallback(Object result, IntPtr userToken)
   at System.Net.Security._SslStream.ProcessFrameBody(Int32 readBytes, Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest)
   at System.Net.Security._SslStream.ReadFrameCallback(AsyncProtocolRequest asyncRequest)
   at System.Net.AsyncProtocolRequest.CompleteRequest(Int32 result)
   at System.Net.FixedSizeReader.CheckCompletionBeforeNextRead(Int32 bytes)
   at System.Net.FixedSizeReader.ReadCallback(IAsyncResult transportResult)
   at System.Net.LazyAsyncResult.Complete(IntPtr userToken)
   at System.Net.ContextAwareResult.CompleteCallback(Object state)
   at System.Threading.ExecutionContext.runTryCode(Object userData)
   at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Net.ContextAwareResult.Complete(IntPtr userToken)
   at System.Net.LazyAsyncResult.ProtectedInvokeCallback(Object result, IntPtr userToken)
   at System.Net.Sockets.BaseOverlappedAsyncResult.CompletionPortCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped)
   at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)

This post was edited 3 times, last on 2012-09-10, 18:42 by Irdis.

Alex

2012-09-10, 18:28 #2

Member since Feb 2003 · 4449 posts · Location: Germany
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When you have multiple connections you must use a new XmppClientConnection instance for each connection. This should be no problem at all.

Alex

Irdis

2012-09-10, 18:32 #3

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for shure i have one-to-one relation between XmppClientConnection and own Client representation...
maybe smth. else. This crash really bother me.

also thx for quick replies

Alex

2012-09-10, 18:55 #4

Member since Feb 2003 · 4449 posts · Location: Germany
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A Xml log would help there, or a socket log. InvalidTokenException normally means that invalid Xml was received over the socket.
It looks like the exceptions happens in the .NET SslStream class.

Alex

Irdis

2012-09-10, 19:28 #5

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hope this helps...
Also I can't find a normal way to reproduce that. But it rarely happens when I have not stable connection to the internet.

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This post was edited on 2012-09-10, 19:42 by Irdis.

Alex

2012-09-11, 15:07 #6

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I see many authentication errors in your logfile:

<failure xmlns="urn:ietf:params:xml:ns:xmpp-sasl"><invalid-authzid /></failure>

If you don't close the stream properly after this errors agsXMPP will have problems I guess.

Alex

Irdis

2012-09-12, 15:39 #7

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Alex, you are right. I should be more carefull with session.