Release message consumer thread on NetPeer shutdown

What steps will reproduce the problem?
1. Use NetPeer.MessageReceivedEvent to wait for new messages.
2. Use Release compilation so shutdown debug messages are not sent.
3. Do not estabish any connections so no connection will be closed and 
therefore generate messages
4. Start NetPeer (NetServer or NetClient in my case) and wait for the messages 
in the separate thread.
5. Shutdown NetPeer.

What is the expected output? What do you see instead?
The message consumer thread still waits for the messages until waiting timout 
is elapled.
WaitHandle.Close() doesn't seem to release the waiting threads. (It is called 
in NetPeer.Internal.cs Line 214).

What version of the product are you using? On what operating system?
lidgren-network-gen3-2011-06-07.zip
WinXP SP3+/Win 7

Please provide any additional information below.

I use the following code in the consumer thread:

lidgrenServer.MessageReceivedEvent.WaitOne(RECEIVE_TIMOUT);
NetIncomingMessage message;
while ((message = lidgrenServer.ReadMessage()) != null)
{
  ...
}

For a while I added a signal before closing the AutoResetEvent so the fixed 
code looks like that in NetPeer.Internal.cs Line 214

if (m_messageReceivedEvent != null)
{
    m_messageReceivedEvent.Set();
    m_messageReceivedEvent.Close();
    m_messageReceivedEvent = null;
}

Original issue reported on code.google.com by oga...@servicerepairsolutions.com on 8 Jun 2011 at 7:37

lnobad / lidgren-network-gen3

Release message consumer thread on NetPeer shutdown #70