Sample do not run on Win 8

[john06]

Hello,

The Server Client samples built with VS2012 ran well on my Win7 desktop, but doesn't on Win8, AFAIK with same settings, no firewall, and on a local computer.
I ran with a Debug output window, there is no trace.

So two questions:
1- Is someone has made a RCF Win7 test ?
2- As I don't have any error/warning, is there a way to enable error log ?

Thanks a lot,

[john06]

Shame on me !
Log has his chapter:
http://www.deltavsoft.com/doc/rcf_user_ ... gging.html

[john06]

But RCF::enableLogging( is not defined in source code

[john06]

That is working :

RCF::RcfInitDeinit rcfInit;

// init log
std::string logFormat( "%E(%F): %X" ); // used at Log.cpp line#510
RCF::LogManager::init();
RCF::LogManager::instance().activateLogger( RCF::LoggerPtr( new
RCF::Logger( RCF::LogNameRcf, RCF::LogLevel_4, RCF::LogToStdout(), logFormat ) ) );
RCF::LogManager::instance().activateLogger( RCF::LoggerPtr( new
RCF::Logger( RCF::LogNameRcf, RCF::LogLevel_4, RCF::LogToDebugWindow(), logFormat ) ) );

RCF_LOG_1() << "Is RCF_LOG_1() working ? " ;

[john06]

Hello,
I'm definitively unable to make working the server/client Demo program on a Windows 8 OS.
Easy to reproduce with a virtual Windows 8, (I use the Oracle Virtual Box and the free version of Windows 8 Pro).
In order to investigate, I have run successfully many Boost::ASIO samples, I have enabled level 4 log in the Demo, the only message is coming from the client is "Remote call timeout exceeded. No response from peer."
I use latest Boost 1.51.0, with static memory model.
The same binaries runs on Win 7.
I have tried to follow step by step in debugger, but at least need your help in order to be more efective ...

Nevertheless, on this occasion I think I found a potential problem in IpAddress::createSocket with this code:

RCF_VERIFY(
fd != -1,
Exception(
_RcfError_Socket("socket()"), err, RcfSubsystem_Os));

MSDN doc says that error code is INVALID_SOCKET (0), not -1 as in the code.

Best regards,

Jean

[john06]

One more indication, Win8 Client and Win7 Server or vice versa fail also.

[jarl]

Thanks for troubleshooting this. I'll get a Windows 8 environment set up, and have a closer look.

Logging support (RCF::enableLogging()) was added in build 2665.

You could try building with RCF_USE_BOOST_ASIO defined, that way RCF will use the Boost.Asio library from your Boost version, rather than the somewhat older version of Asio that is included in RCF.

[john06]

Thanks for your suggestion,
I have builded the "RCF-2.0.0.2667 Demo" with RCF_USE_BOOST_ASIO defined (which implies linking with libboost_system-vc110-mt-sgd-1_51.lib), the issue persists
I have sent by mail log files.

[jarl]

I've had a closer look at this now, and I'm pretty sure it boils down to the issue reported here:

http://stackoverflow.com/questions/1204 ... ch-origina

In Server.cpp, if you comment out the std::cin.get() and replace it with e.g.

while (true) Sleep(1000);

, then the server runs fine and the client can make calls to it.

What's happened is that when RcfServer::start() is called, it ends up making an asynchronous connect call (AcceptEx()) on a socket. Once the thread returns from RcfServer::start(), it then goes straight into the std::cin.get() call, which blocks on I/O. As the Stack Overflow link details, when a thread is blocked on I/O, the asynchronous requests it has made can't be completed, hence the server can't accept the call from the client and the client times out.

This is a rather amazing bug in Windows 8, and I would have to assume Microsoft will fix it fairly quickly. I will have to come up with a workaround for RCF (on Windows 8 and Server 2012), to make sure the asynchronous accept only happens on RCF server threads, but for now you'll need to make sure that the thread that calls RcfServer::start(), doesn't subsequently block on any I/O...

[john06]

So I had definitely not any chance of founding the bug as I was focused on your code
Thanks a lot jarl !