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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log4cxx: time based rolling doesn't work

I'd like to configure log4cxx via xml in order to roll my log file every minute. I tried with the following log4j.xml file but it seems to work only sometimes, randomly. I tried also with another xml file using TimeBasedRollingPolicy but it doesn't…
m2fro
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Log4Cxx as part of a static build

Hi I'm doing some preliminary investigation into Log4Cxx and it seems as though it's a dynamic library. I'm wondering if it's possible to use it as part of a Static build. Thanks in advance.
lukegjpotter
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How to set log4cxx properties without property file?

I am using log4cxx with normal way, which provides a property file for log4cxx. Here we can find a reference: log4cxx: configuring appender with arguments Reading Property Info in Log4cxx But if I want to set log4cxx in my C++ code without property…
Watterry
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use of Log4cxx in visual studio 2012

I tried to build log4cxx for visual 2012 and, after 4 hours of resolving errors, the build was succesful (i'm not sure :)). As a second step I tried to create a vs project to test logging. I used this example but it keep tell me that…
Amine
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log4cxx log without source file path?

log4cxx pattern %l will output the source file name and its path to the log, which makes it uncomfortable to read, if the source file is in in a deep directory, when compiled with a absolute path. 2012-11-20 15:59:14,184 0x7f7ae90e27c0 TRACE…
NeilJiang
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Trouble including log4cxx

I am relatively new to C++, but I have used log4j (and it's Python clone logging). Therefore I want to use log4cxx for logging in my new C++ project. I installed log4cxx with brew install log4cxx Now I need to include it in my source files. I…
clstaudt
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Log4cxx : set Threshold on appender

I'm new in log4cxx. I try to set a threshold to an appender. In my code, I get the appender TERMINAL (it will write in my xterm windows). log4cxx::LoggerPtr loggerLog4cxx(log4cxx::Logger::getRootLogger()); log4cxx::AppenderPtr app =…
Shaina
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log4cxx time based rolling on Windows

Has anyone had any success getting log4cxx to roll files based upon time on Windows? It seems from the unit test cases and the behavior I can observe that this does not work at all on win32 platforms. My config is below in case I've made a mistake…
stackoverflow727
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failed to compile log4cxx in Ubuntu12. error is apr

Follow instruction with this link include this apt-get install libapr1 libaprutil1 When run ./configure --prefix=/usr i am getting error: configure: error: APR could not be located. Please use the --with-apr option. any advice please. Thank you
Avihai Marchiano
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log4cxx output directory

How can i configure log4cxx that it will write the logs in a specific directory? The tutorial site which i have used is from here, i want to use daily rolling logs. Log4cxx Tutorial After spending some time googling I have tried adding the following…
Oliver
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Multiple log4cxx Dom Configurator in single process

I have 2 different com components which are instantiated in same process. Both components are using Log4cxx DomConfigurator and configuring different log4cxx config xml file. Each specifies different paths for logs. But logs are created in the path…
srajeshnkl
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Log4cxx log file analysis

Could anybody tell me please, what's up with log4cxx analysis tools ? My goal is to parse log4cxx log file, for instance, by defining start message of the function and the end message of the function. Then I need to get timings by different sub…
Alexander.Iljushkin
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Pass MDC parameter to file name in Log4cxx

I can able to get a parameter[ PID] at my program , then put this parameter to context using MDC MDC::put( "pid", strProcessId); And i can log process id by adding this to config
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C++ thread name map and log4cxx

With std::thread, it is now trivial to keep a list of threads names in the program state (either by wrapping the thread, or by using a singleton to manage the thread list.) I am starting to use log4cxx for my logging, and I'd like to have it display…
Glen Nelson
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Logging to windows event using Log4cxx

How can i send log messages to windows event log using Log4cxx? If i do it from multiple process , will it be process safe? Well: Thanks Retired Ninja...Yes it works...[ log4j.properties file] # Set root logger level to DEBUG and its only appender…
Novalis
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