Re: You have tried to set a null level to root.

24 May 2004 20:26:30 -0000 

Hello,

It seems the problem is related to the construction order of static variables.

Visual C++ 7.1, constructs static variables in the declaration order for each source file, and in the link order of each obj file and library for a whole module.
So, the static variable used in the delayedloop example is constructed before the static variables declared in log4cxxs.lib (for the linker parse delayedloop.obj first).
Accordingly, the static variables concerning levels, implemented in level.cpp are initialized later. This is was the rootLogger level seems not to be set.

Please add the following lines on top of the files level.cpp and logmanager.cpp :

// Force initialization early.
#pragma warning(disable: 4074)
#pragma warning(disable: 4073)
#pragma init_seg(lib)



The directive '#pragma init_seg(lib)' permits to force the static variables 
implemented in its scope to be initialized first.

Micha�l

Lennart Goedhart wrote:

Yeah, I have the same problem if I try to use the static log4cxx library.
It's dumping at the point it's trying to assign the static Bar::logger.
It works fine if you use the log4cxx.lib (therefore the dll).
As to why this is the case, that's a question for one of the log4cxx
developers, I guess.

----- Original Message ----- From: "Lars Schouw" <[EMAIL PROTECTED]>
To: "Log4CXX User" <[email protected]>
Sent: Thursday, May 20, 2004 7:32 PM
Subject: Re: You have tried to set a null level to root.




Lennart

You are really a great help thank for always answering
so quick!

It dumps before that it even gets to there!

I took out the A2W here A2W(argv[1]); as well since
since my code is not unicode.

I pass the following into the program as a startup
argument. config/LogSettings.txt

Well I have this configuration file called
LogSettings.txt

# Set root logger level to DEBUG and its only appender
to A1.
log4j.rootLogger=DEBUG, A1

# A1 is set to be a ConsoleAppender.
log4j.appender.A1=org.apache.log4j.ConsoleAppender

# A1 uses PatternLayout.
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%d [%t]
%-5p %c %x - %m (F:L)%n

Also in the meanwhile I tried to setup the trivial
project replacing the code with the bar sample you
have in the documentation.
When I run it I get an error like before
You have tried to set a null level to root.
and in this case it runs down the sample code until
this line is called:
logger->info(_T("Entering application."));
where an exception is thrown.
In the console I get this.
First-chance exception at 0x77e73887 in trivial.exe:
Microsoft C++ exception:
log4cxx::helpers::RuntimeException @ 0x0012fddc.
Please be awair the the code is not the trivial.cpp
from your sample but the code from the documentation.

Again I am using the static library I compiled myself.

Also one more thing when I build I get some warnings.
They come from an error in the documentation;
#include <log4cxx/logger.h>;
Should be without the last semicolon.




Regards
Lars Schouw

--- Lennart Goedhart <[EMAIL PROTECTED]> wrote:


I assume you get this when you pass the arg of the
config file. What does your config file look like?
When I comile that snippet of your code (with a few
minor changes), it works fine.
I have he logfile I pass working with Conole,
RollingFile and ODBC appenders...
----- Original Message ----- From: Lars Schouw
To: Log4CXX User
Sent: Thursday, May 20, 2004 5:23 PM
Subject: Re: You have tried to set a null level to
root.


 Sorry forgot to tell that I also have a static
variable declared in a header file
 static log4cxx::LoggerPtr logger;



 Lars Schouw <[EMAIL PROTECTED]> wrote:
   I tried to add a configuration file to my
project but
   when I run it I get this error:
   You have tried to set a null level to root.
   and an exception it thrown.
   This is before I even hit the main function so
it must
   belong to the static variable I declared the is
   initialized when the object is loaded.

   My souce code:

   // include log4cxx header files.
   #include
   #include
   #include
   #include

   using namespace log4cxx;
   using namespace log4cxx::helpers;

   // Define a static logger variable so that it
   references the logger instance named "RALtest".
   LoggerPtr logger =
Logger::getLogger(_T("RALtest"));

   int main(int argc, char* argv[])
   {
   int result = EXIT_SUCCESS;
   try
   {
   if (argc > 1)
   {
   USES_CONVERSION;
   String propertyFileName = argv[1];

PropertyConfigurator::configure(propertyFileName);
   }
   else
   {
   BasicConfigurator::configure();
   }

   logger->info(_T("Entering RALtest
application."));
   ....

   Lars









   __________________________________
   Do you Yahoo!?
   Yahoo! Domains - Claim yours for only
$14.70/year
   http://smallbusiness.promotions.yahoo.com/offer





--------------------------------------------------------------------------


----


Do you Yahoo!?
Yahoo! Domains - Claim yours for only $14.70/year





__________________________________
Do you Yahoo!?
Yahoo! Domains - Claim yours for only $14.70/year
http://smallbusiness.promotions.yahoo.com/offer

Reply via email to