6,810

Lace Patterns in CSS

I’ve recently decided to surprise my friends with a web page dedicated to their upcoming wedding — quite a beneficial topic in terms of experiments with various decorative elements like ribbons, frames, and lace. At the same time, I’m up to implement the maximum of such decorations in pure CSS for my own pleasure. In this article, I want to share the way I managed to “weave” lace patterns for the future website with the help of radial and linear gradients.
1,745

One Day Programmers Will Destroy This World

Story One: A Memory When I was a little boy and went to elementary school, the following story happened to me. During a break, I was in a classroom with several friends of mine. Suddenly, a flower fell from the shelf. At that very moment, the teacher entered the room and accused us of vandalism without looking into the situation. We were reprimanded and our parents were called to school.
9,412

PostgreSQL: A Set of Practices

I started working with PostgreSQL three years ago. During this time, I have managed to collect all the bugs you could imagine. To tell the truth, if I knew the current sad experience three years ago, my life would have been much easier. That’s exactly why I have decided to write a completely subjective article with a set of rules I stick to when using PostgreSQL. Perhaps, this article will help you avoid bugs I came across (and meet some other ones, ha ha!
1,931

Asynchronous Programming Part 2: Teleportation through Portals

Finally, I have finished another article about asynchronous programming. It develops the ideas of the previous one [1]. Today we are going to discuss quite a difficult task that will reveal the power and flexibility of using coroutines in various nontrivial scenarios. At the end, we are going to consider two tasks on race-condition, and also a small bonus. By the way, the first article on asynchronous programming has become quite popular.
573

Finding Bugs in the Code of LLVM Project with the Help of PVS-Studio

About two months ago I wrote an article about the analysis of GCC using PVS-Studio. The idea of the article was as follows: GCC warnings are great, but they’re not enough. It is necessary to use specialized tools for code analysis, for example, PVS-Studio. As proof of my words I showed errors that PVS-Studio was able to find the GCC code. A number of readers have noticed that the quality of the GCC code, and its diagnosis, aren’t really great; while Clang compiler is up to date, of high quality, and fresh.
63,054

Capturing Packets in Linux at a Speed of Millions of Packets per Second without Using Third Party Libraries

My article will tell you how to accept 10 million packets per second without using such libraries as Netmap, PF_RING, DPDK and other. We are going to do this with Linux kernel version 3.16 and some code in C and C++. To begin with, I would like to say a few words on how pcap (a well-known method for packet capture) works. pcap is used in such popular utilities as iftop, tcpdump, arpwatch.
3,881

How I Found the Best Programming Language in the World. Part 1

Since I’m going to provoke trolls on the subject of programming languages, and even name the best one in the world (I mean absolutely the best, for sure), I recommend all of them to check out my previous post “Choosing a Programming Language”. Everything mentioned there is still up-to-date, and I wouldn’t’ like to repeat myself here. Read it? Good. Today I am going to talk about the best programming language in the world, and I’ll name it closer to the end of this post.
3,544

Asynchronous Programming: Back to the Future

Asynchronous programming… Hearing these words, programmers’ eyes begin to shine, breathing becomes shallow, hands are shaking and the brain is drawing multiple levels of abstraction… Managers’ eyes become wide, sounds become inarticulate, fists are clenched, and the voice switches to overtones. The only thing that unites these two groups of people is a rapid pulse. However, there are different reasons. While programmers are eager for the fight, managers are trying to look into the crystal ball and realize the risks, frantically trying to come up with reasons to extend the deadlines as mush as they can.
657

Why Using Finalizers Is a Bad Idea

Not so long ago we worked on a diagnostic rule related to the finalizer check. This provoked an argument on the details of the garbage collector work and the finalization of objects. Although we have been programming in C# for more than 5 years, we haven’t achieved any consensus as regards this question, so I decided to study it more thoroughly. Introduction Usually .NET developers encounter a finalizer when they need to free an unmanaged resource.
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Chatbots, and how will Microsoft help us with this?

This overview article is devoted to the study of a trend which is growing rapidly in popularity in the IT industry — chatbots, and the role of Microsoft in their development process. The article will cover the history of chatbots, peculiar properties of bots, the main, and also some unexpected spheres of their application, perspectives and technology limits. Generally, a chatbot is a program that can imitate a meaningful dialogue with the user via text or speech in the language known to the user.
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