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Posted on April 19, 2009, 8:16 pm, by Alexander Sandler, under Programming Articles. IntroductionBACK TO TOC Perhaps any engineer developing for Linux encounters this problem. What’s is the right way to terminate the program? What are the ways to receive notifications from operating system about events that occur. Traditional Unix systems have the answers ready. The answer to these questions is si

Let's examine the case of power failure while a reliable process is running. When the power cable is pulled out, the power doesn't die out immediately. In fact, it takes a few milliseconds before the power is completely gone. This reliable process may need to be notified of such power failures to, for instance, save states before being forced to exit. Let's examine the possible approaches to accom

In most cases if you want to handle a signal in your application you write a simple signal handler like: void handler (int sig) and use the signal(2) system function to run it when a signal is delivered to the process. This is the simplest case, but signals are more interesting than that! Information contained in this article is useful for example when you are writing a daemon and must handle inte

Copyright © 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Snow B.V. Abstract Audience: this book is intended to help people prepare for the LPIC-2 exam. You will need to have at least 2 years of practical experience with Unix, preferably Linux. Though you may take the LPIC-2 exam without it, you should be an LPIC-1 alumnus to be allowed to the