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From Fabian Jacquet <fabian.jacq...@gmail.com>
Subject Re: MDC automatically inherited
Date Thu, 19 Aug 2010 14:34:16 GMT
does somebody use MDC with success?

On Wed, Aug 18, 2010 at 11:27, Fabian Jacquet <fabian.jacquet@gmail.com>wrote:

> Hi all,
>
> I need to use NDC or MDC. I would like that child thread automatically
> inherit the parent context so I try to use MDC.
>
> Here is my code and it seems the context is not inherited:
>
> #include "stdafx.h"
> #include <log4cxx/log4cxx.h>
> #include <log4cxx/logger.h>
> #include <log4cxx/logmanager.h>
> #include <log4cxx/xml/domconfigurator.h>
>
> DWORD WINAPI test1(LPVOID param)
> {
>     log4cxx::LoggerPtr log = log4cxx::LogManager::getLogger("MyLogger");
>     LOG4CXX_INFO(log, "Message thread with MDC");
>
>     return 0;
> }
>
> int _tmain(int argc, _TCHAR* argv[])
> {
>     log4cxx::xml::DOMConfigurator::configure("log.xml");
>
>     log4cxx::LoggerPtr log = log4cxx::LogManager::getLogger("MyLogger");
>     LOG4CXX_INFO(log, "Message without MDC");
>
>     log4cxx::MDC::put("MyMDC", "MyMDC");
>     LOG4CXX_INFO(log, "Message with MDC");
>
>     CreateThread(NULL,NULL,test1,NULL, 0, NULL);
>
>     Sleep(3000);
>     return 0;
> }
>
>
> Output:
> 2010-08-18 11:27:44,015 [0x0000073c] INFO   {MyLogger - ::__cdecl
> wmain(24)} - Message without MDC
> 2010-08-18 11:27:44,015 [0x0000073c] INFO  MyMDC {MyLogger - ::__cdecl
> wmain(27)} - Message with MDC
> 2010-08-18 11:27:44,015 [0x00000bf0] INFO   {MyLogger - ::long __stdcall
> test1(14)} - Message thread with MDC
>
>
> I don't know where is my mistake.
>

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