Questions tagged [log4cxx]

Apache log4cxx is a logging framework for C++ patterned after Apache log4j. Apache log4cxx uses Apache Portable Runtime for most platform-specific code and should be usable on any platform supported by APR. Apache log4cxx is licensed under the Apache License, an open source license certified by the Open Source Initiative.

Apache log4cxx is a logging framework for C++ patterned after Apache log4j. Apache log4cxx uses Apache Portable Runtime for most platform-specific code and should be usable on any platform supported by APR. Apache log4cxx is licensed under the Apache License, an open source license certified by the Open Source Initiative.

Almost every large application includes its own logging or tracing API. Inserting log statements into code is a low-tech method for debugging it. It may also be the only way because debuggers are not always available or applicable. This is usually the case for multithreaded applications and distributed applications at large.

Experience indicates that logging is an important component of the development cycle. It offeres several advantages. It provides precise context about a run of the application. Once inserted into the code, the generation of logging output requires no human intervention. Moreover, log output can be saved in persistent medium to be studied at a later time. In addition to its use in the development cycle, a sufficiently rich logging package can also be viewed as an auditing tool.

Logging does have its drawbacks. It can slow down an application. If too verbose, it can cause scrolling blindness. To alleviate these concerns, log4cxx is designed to be reliable, fast and extensible. Since logging is rarely the main focus of an application, the log4cxx API strives to be simple to understand and to use.

Official Website: http://logging.apache.org/log4cxx/

Useful Links:

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Write logs in different folders

I would like to write logs into csv files for every minute, those csv files needs to be kept in different folders i.e., 60 minute log files in first hour folder and another 60 minutes which supposed to be the next hour folder. When i use…
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How to fix 'memmove' not declared error in log4cxx

I am trying to cross-compile log4cxx for ARM from a x86_64 machine. During compilation, there is an error saying 'memmove' was not declared in this scope. I am using a Linaro GCC cross-compiler version 4.9.4. In order to prevent a different issue…
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Howto install log4cxx with conan?

I am starting to experiment with conan. I found this GitHub repository but I am not sure what to do with it. I would like to install log4cxx via conan install.
lanoxx
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I am getting error in c++ programm while using log4cxx

I am getting error in c++ program while using log4cxx. The error message is: error:Please initialize the log4cxx system properly Please help to resolve, Thanks in advance.
balaji
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LGPL/public-domain equivalent of Apache log4cxx?

Is there an equivalent of Apache log4cxx that can be embedded in a distributed proprietary package?
Nicolas Raoul
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log4cxx - Locale looks like a function definition, but there is no parameter list

I am trying to compile a project that uses log4cxx, a c++ logging framework. Once I downloaded the framework and added it as a dependency, however, I get this error: 'Locale' : looks like a function definition, but there is no parameter list;…
user4984149
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SDL Core, could not be installed, No appender could be found for logger (SDLMain). log4cxx: Please initialize the log4cxx system properly

I am new to Smartdevicelink framework, I am trying to connect my android app through tcp, in which while I am trying to install SDL Core in my local system, I come across below error... log4cxx: Could not instantiate class…
Santhosh
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Is it possible and how to create independent loggers per process with log4cxx library?

How can we have different logger ( that has independent configuration) per process when using log4cxx library?
vahed mafi
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Loading 3rd party DLL fails with Unhandled Exception at runtime (Log4CXX, ActiveMQ)

I'm trying to run an out of the box ActiveMQ example http://activemq.apache.org/cms/example.html on Windows with VS 2008 in a 32-bit C++ Console application. The project is built but when I run the program, I get the exception. Unhandled exception…
Bokhari
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log4cxx -- is it possible to configure a custom appender with custom arguments from a config file?

I need to write a custom appender in log4cxx. This answer describes how to do it. In Java, in log4j, it is possible for a custom appender to devise custom parameters. I add a property and a getter and setter: private int myParameter = 0; public…
Andrzej
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Building spectrum2 on non root server

As the subject says I've trouble installing spectrum2 on a non root server. The main problem is that I've to build a lot of dependencies from source and link them correct. I've installed log4cxx with its dependencies in…
temzao
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log4cxx: try/catch wont work on DOMConfigurator::configure

Well, I just wrote a simple logger program with log4cxx lib, It is working fine so far, but then I realized the exception handling doesnt work as I expected: #include #include #include…
atari83
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Interface vs. Individual Loggers

I want to implement loggers in a C++ project that I am working on. I am wondering whether it would be better to implement a logger within each class individually, or to have a single logging interface and instantiate an instance of it in each class…
Cornel Verster
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static linking log4c-1.2.1 with Fedora 12 and Eclipse 3.5.1

We are building a project that requires log4c to be linked in the static mode, the following is part of the linker error that is being generated. /usr/local/lib/liblog4c.a(domnode-expat.o): In function…
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log4cxx visual studio 2010 configuration release x64

I have a console application with visual studio 2010 that uses log4cxx, the application with configuration debug x64 works well, the problem is that in Release x64 log4xcc throws this error: Debug Assertion Failed! Program:…
Gerard
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