[jira] Moved: (AMQNET-15) .Net client TcpTransport does not prevent concurrent access to BinaryWriter

["james strachan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/activemq/browse/AMQNET-15?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

james strachan moved AMQ-994 to AMQNET-15:
------------------------------------------

        Fix Version/s: 1.0
          Component/s:     (was: NMS (C# client))
    Affects Version/s:     (was: 4.0.2)
                  Key: AMQNET-15  (was: AMQ-994)
              Project: ActiveMQ .Net  (was: ActiveMQ)

> .Net client TcpTransport does not prevent concurrent access to BinaryWriter
> ---------------------------------------------------------------------------
>
>                 Key: AMQNET-15
>                 URL: https://issues.apache.org/activemq/browse/AMQNET-15
>             Project: ActiveMQ .Net
>          Issue Type: Bug
>         Environment: Windows
>            Reporter: Rob Lugt
>             Fix For: 1.0
>
>         Attachments: patch-amq994.txt
>
>
> A client application using multiple sessions may write multiple messages concurrently. The underlying TcpTransport does not synchronize access to its BinaryWriter, resulting in possible data message corruption or worse.
> The TcpTransportFactory in the Java client uses a MutexTransport to protect the underlying socket.  This technique would work equally well in the .Net client, but I propose simply locking the writer as the TcpTransport should argueably protect itselft rather than relying on the factory to provide protection.

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