void TCPSocket_StateChange(object sender, TCPListenerSocketEventArgs e)
{
if (e.Sender.TCPState == TCPSocketState.Closed)
{
TCPStreamMonitorStack tsmsStack = GetStackForSocket(e.Sender);
if (tsmsStack == null)
{
throw new InvalidOperationException("TCP stream monitor caught an event of a socket which was not created by it. This should never happen.");
}
TCPListenerSocket sAlice = tsmsStack.StackAlice.TCPSocket;
TCPListenerSocket sBob = tsmsStack.StackBob.TCPSocket;
if (sAlice.TCPState == TCPSocketState.Closed && sBob.TCPState == TCPSocketState.Closed)
{
ShutdownStack(tsmsStack);
if (tsmsStack.IsClosed)
{
lock (lStacks)
{
lStacks.Remove(tsmsStack);
InvokeExternal(StackDestroyed, new TCPStreamMonitorEventArgs(tsmsStack));
}
}
}
}
}
protected TCPStreamMonitorStack GetStackForSocket(TCPListenerSocket sock)
{
lock (lStacks)
{
foreach (TCPStreamMonitorStack sStack in lStacks)
{
if (sStack.StackAlice.TCPSocket == sock || sStack.StackBob.TCPSocket == sock)
{
return(sStack);
}
}
return(null);
}
}