Joys of Programming » Data logger

How to direct logs to multiple log files (destinations) – log4cpp

Joys of Programming — Fri, 15 Jan 2010 14:23:54 +0000

log4cpp can not only be used to log the events to a log file or standard output, but also helps you to log events to multiple destinations. For this purpose, either you can add multiple appenders to a single category or make use of multiple Categories. We will explore the first options. With this option, [...]

Three Important Steps for Log4cpp Programming

Joys of Programming — Tue, 12 Jan 2010 14:18:48 +0000

When you start working with log4cpp, you need to take care of the following steps Initializing an Appender Deciding on the Layout Finalize on the Category Let’s see what each of these mean. Appender: Appender in log4cpp corresponds to the destination of logs. A suitable appender is initialized based on your requirements. The destination of [...]

Log4cpp::StringQueueAppender – Manipulating the log4cpp logs

Joys of Programming — Tue, 12 Jan 2010 14:07:35 +0000

log4cpp logs can be directed to files, standard output, back up files or even to the System Log. But before moving to discussing about log4cpp::StringQueueAppender, I would like to present certain scenarios or use cases of StringQueueAppender. You do not want to actually print the log files, but simply want to count certain occurrences of [...]

OstreamAppender: Direct the log4cpp logs to standard Output

Joys of Programming — Mon, 11 Jan 2010 13:50:13 +0000

log4cpp enables you to easily log important events. The logs can be directed to files or even periodically rolled back and back up. There are multiple destinations for the log files and you can decide which one to choose from. Though in most cases, you want to use log files, you can also make use [...]

log4cpp::RollingFileAppender – How to Backup and Roll Over log files?

Joys of Programming — Mon, 04 Jan 2010 18:16:43 +0000

It is very important to log the events in your software both for analytics and debugging. Log4cpp is helpful for logging in with C++. Log4Cpp::File Appender can be used to direct the output of logs to a file. But there are certain challenges that you may face while using log files The files can soon [...]

log4cpp::FileAppender – Logging into Files

Joys of Programming — Fri, 01 Jan 2010 13:42:37 +0000

log4cpp::FileAppender is used to output the logs to a file. The following program will show how an object of log4cpp::FileAppender is used. Let’s take a look at the following code snippet The first parameter of the constructor is the name of the appender and the second parameter is the destination of the log file. The [...]

log4cpp::Appender – Destination of Logs

Joys of Programming — Fri, 01 Jan 2010 10:55:58 +0000

As pointed out in log4cpp tutorial, one of the important things while initializing logging using log4cpp is to decide the destination of the log. It can be any file often known as log file or even across the network. An object of the class log4cpp::Appender must be initialized for this purpose as shown in the [...]

A Simple log4cpp example

Joys of Programming — Thu, 31 Dec 2009 10:04:23 +0000

As pointed in the log4cpp tutorial, to program with log4cpp, you must be instantiate the following Appender: The destination of your log file Layout: The format of your log file Category: The type of logging like critical or debugging purposes The following simple program depicts this. Do not forget to change the value of LOGFILE. [...]

Log4Cpp Tutorial

Joys of Programming — Thu, 31 Dec 2009 09:14:14 +0000

log4cpp is used for logging in C++. Given below is the log4cpp tutorial. The tutorial explains the various features of log4cpp with examples. log4cpp Tutorial Introduction to Logging log4cpp for logging in C++ Installation of log4cpp Install log4cpp from sources A sample Log4cpp Example Compile and link log4cpp programs Three Important Steps for Log4cpp programming [...]