Hello Michael,
On 09/09/2011 04:31 AM, Michael Raab wrote:
> the current approach in general seems to work well with StreamSock connection
> between client and servers.
> The difficulties seem to appear when using Multicast. I was able to fix the
> problem of the server shutdown when trying to close the (Mcast) connection.
> The patch is attached, please have a look. Thanks.
thanks for the patch. So the recvQueue() thread blocked in recvNextDgram()?
> So for now the server side seems to connect, run and close stable, but I
> still have a deadlock on client side after disconnecting a single server.
>
> This is what I'm doing in the client:
[SNIP - code]
that looks reasonable to me.
> I'm disconnecting all unnecessary render channels after syncing all changes
> to the servers. Then the frame becomes rendered. After that I try to swap in
> sync with the servers but the connection waits forever for the server
> signals. I have looked at the code for a long time but I have no clue why it
> should. May be it waits for the disconnected server...
> This is the stack were all gets stuck:
>
> ntdll.dll!76f4f8c1()
> [Unten angegebene Rahmen sind möglicherweise nicht korrekt und/oder
> fehlen, keine Symbole geladen für ntdll.dll]
> ntdll.dll!76f4f8c1()
> mswsock.dll!74506f0f()
> mswsock.dll!74506d30()
> ntdll.dll!76f63ca3()
> OSGSystem.dll!osg::DrawActionBase::stop(osg::Action::ResultE
> res=Continue) Zeile 259 C++
> msvcp80.dll!std::basic_filebuf<char,std::char_traits<char>
> >::overflow(int _Meta=64) Zeile 304 + 0x5 Bytes C++
> ws2_32.dll!74c76a28()
> OSGBase.dll!osg::SocketSelection::select(double
> duration=-1.0000000000000000) Zeile 236 C++
> OSGBase.dll!osg::SocketSelection::select(double
> duration=-1.0000000000000000, osg::SocketSelection& result={...}) Zeile 265
> + 0x2d Bytes C++
> OSGBase.dll!osg::GroupSockConnection::wait(double
> timeout=-1.0000000000000000) Zeile 336 + 0x15 Bytes C++
>> OSGBase.dll!osg::GroupMCastConnection::wait(double
>> timeout=-1.0000000000000000) Zeile 205 C++
> OSGExt.dll!osg::VDTMultiDisplayWindow::clientSwap() Zeile 546 C++
> OSGExt.dll!osg::VDTMultiDisplayWindow::render(osg::RenderActionBase *
> action=0x0c6b7958) Zeile 303 C++
>
> I don't know how the DrawAction stuff comes into the stack, maybe its a
> visualization bug in VS...
yeah, that looks bogus ;)
Hmm, the interesting information would be, which sockets are in the
SocketSelection and if a disconnected server is still in there what and
why it was placed there?
Cheers,
Carsten
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