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  Programming: the benefits of taking a break

This post lists several benefits of taking a break during programming.You work smarter, not harder. Once, I worked really hard on a feature. For two weeks, 12 hours a day, I put in a lot of effort. After those two weeks, I took a break and came up with several ideas that made much of the work unnecessary.You think more clearly. Being tired has a similar effect as being drunk. At the end of a day, I often kid myself that I’ll just get this one thing finished quickly to have a fre...

   Programming,Break,Rest,Refresh,New idea     2011-11-08 08:50:45

  An experience of fixing a memory-corruption bug

During the last 4 months, I was disturbed by a memory-corruption bug, and this bug will cause program crash. Until last Monday, I found the root cause and fixed it. This debug process is a difficult but memorable experience, so I will share it in this article.   My program works as a SMS Hub. When it receives a SMS, it will allocate a structure in heap memory like this: typedef struct { ...... int *a[8]; ...... } info; After processing the SMS, the program will free the m...

   c, debug, unix, solaris, multi-thread     2014-05-04 03:52:43

  How Can Your Data Be Stolen Online?

In 2019, according to Statista, nearly 165 million sensitive records were exposed in the US due to data breaches. Unfortunately, data theft is not going anywhere. Hackers are using increasingly sophisticated methods to steal information, but thankfully there are measures you can take to ensure your data stays safe. Here are some of the most common ways people get their data stolen online and how you can take precautions against the methods cybercriminals use. Human Error Hacking is one of the m...

   DATA SECURITY,PROTECTION KID     2021-01-27 19:46:05

  Learn how to tell a story before building your own start-ups

Imagine one day you become a successful start-up founder like Mark Zuckerberg, then somebody will come and find you and want to shoot a movie for you with your start-up story. If you are not successful yet, then this story should be written by yourself. For start-up founders, learn how to tell a story will not only promote yourself among investors, users and medias but also can create a macro development plan for your start-ups by explaining various unexpected things will happen. Pixar storyboa...

   Start-up,rules,Pixar     2013-03-10 10:06:54

  Server monitoring shell scripts

There are many open source server monitoring software such as cacti and nagios. Besides these, can we write our own shell scripts to monitor them? The shell scripts written by ourselves can fulfill our special requirements better and have a more detailed coverage. Below are some commonly used shell scripts used by Evangelist, an Oracle DBA. 1. Check network gateway traffic #!/bin/bash #network #Mike.Xu while : ; do time='date +%m"-"%d" "%k":"%M' day='date +%m"-"%d' rx_before='...

   Server monitor,CPU,memory,shell     2013-08-30 21:56:14

  How Technology Can Prevent Casino Cheating

Cheating has been around as long as gambling itself, which is surely since the dawn on of time. Cheating in casinos, both land based and online, can prove a huge problem, not only for those playing against the cheater, but for the individual casino operators, as well as the industry in its entirety. Preventing cheating makes casino play fairer for all involved, both operators and their clients.Fortunately, in today's day and age, we have excellent, highly developed technology that can assist cas...

   Technology,Casino     2015-07-13 02:52:44

  First steps with Scala, say goodbye to bash scripts…

Those who know me are aware that I’ve been following play framework, and actively taking part of it’s community, for a couple of years. Playframework 2.0 is right around the corner, and it’s core is programmed in Scala, so it’s a wonderful opportunity to give this object-oriented / functional hybrid beast a try… Like many others, I will pick a very simple script to give my first steps… Finding an excuse to give Scala a try With a couple of friends we are ...

   Scala,Functional programming,Bash script,Replacement     2012-01-12 06:45:16

  Sass Style Guide: A Sass Tutorial on How to Write Better CSS Code

Writing consistent and readable CSS that will scale well is a challenging process. Especially when the style sheets are getting larger, more complex, and harder to maintain. One of the tools available to developers to write better CSS are preprocessors. A preprocessor is a program that takes one type of data and converts it to another type of data, and in our case CSS preprocessors are preprocessing languages which are compiled to CSS. There are many CSS preprocessors that front-end develop...

   CSS,SASS,TUTORIAL     2015-09-17 06:40:47

  Those famous Emacs users

I don't think using Emacs can improve one's programming skills, I don't think some famous people used Emacs before can provide something, either. But these famous people encouraged me to learn Emacs when I wanted to give it up. Here I created a list of famous Emacs users. Most of people in this list are not famous because they developed or used Emacs, but they are famous and also use Emacs. Joe Armstrong -- Erlang's author In The Setup, Joe mentioned that "I write books using XML markup in emacs...

   Emacs,History     2013-07-28 21:36:09

  Thoughts on Running an Open Source Project

I spoke in the unconference at PHPUK last week, on running an open source project. I thought I would collect together my thoughts into one place before I lose the scratty piece of paper I wrote them down on. I'm not sure I'm the right person to be giving advice exactly, but these are the things that, having been project lead on joind.in for a while, I think are important. Community I love it when people share their code, just make something and publish it, but to my mind it isn't an open...

   Open source,Management,Readme,Community     2012-03-06 05:25:27