No time to wait

Text::APL - streaming and non-blocking Perl template engine

Sun, 29 Jan 2012 23:00:00 GMT

This is yet another template engine. But compared to others it supports non-blocking (read/write) and streaming output.

→ Keep reading

PocketIO vivification

Sun, 22 Jan 2012 12:35:00 GMT

Since 0.10 PocketIO doesn't require Plack and has a new dependency Protocol::SocketIO.

→ Keep reading

Learning music notes with Perl

Sun, 18 Dec 2011 14:02:00 GMT

So the other day I bought a MIDI2USB interface to my piano keyboard and as a programmer I was curious about sending back and forth those MIDI events. I decided to write a simple Perl game that can help to learn the music notes. The routine is simple. The random note is generated and printed out on the terminal (like D3), then you have to find that note on the keyboard and play it. If it matches you get ok, otherwise not ok. And so on. As always CPAN saved hours of my time.

→ Keep reading

Accessors are dangerous

Fri, 18 Nov 2011 10:53:00 GMT

So commonly used accessors (setters/getters) I think are dangerous when overused or used without a caution. Here is a quick list why.

→ Keep reading

Having fun programming is overestimated

Thu, 10 Nov 2011 16:56:00 GMT

A "web framework that makes development fun", a "fun way to program", a "fun introduction". I am tired of this fun programming. Development shouldn't be fun, if I want fun I go and play football with my friends.

    Fun is an ephemeral emotion. I feel it right now, it doesn't have deep
    roots. Doesn't really go anywhere, it doesn't feed me in a deep way. It
    feels good, I like having fun... but it's different than joy.

    -- Kent Beck "Ease at Work"

Fun is something that makes you feel happy for a short period of time but doesn't change you and/or improve your skills. What's the point of fun programming? Suppose I use a framework, library or a module. Should I have fun by using it? No. Instead it should bring a joy by being stable, understandable, flexible etc.

"Fun" is a bad smell for a project.

TDD Best Practices in Perl

Fri, 04 Nov 2011 09:11:00 GMT

In this article I've collected the best practices of TDD (Test Driven development) that help me in my work. I brought them together for the future reference, updates, sharing and discussion.

→ Keep reading

Reading Perl documentation: perlrun

Wed, 19 Oct 2011 20:55:00 GMT

Recently I reread perlrun and found amazing things I didn't know about. Maybe this can be interesting for somebody else too.

→ Keep reading

Back from BlackPerl 2011

Sun, 16 Oct 2011 15:30:00 GMT

On the first days of October (1-2) I was in Crimea (beautiful peninsula on the Black Sea). There was a beta version of BlackPerl workshop. We had not many people there but we had a lot of fun, presentations and even a small hackathon.

→ Below are pictures and details

Translating PSGI specification into russian

Sat, 24 Sep 2011 10:21:00 GMT

We've started translating PSGI specification into russian https://github.com/vti/psgi-specs-ru. If you speak or know russian you are more than welcome to join. We use #ru.pm channel on irc.perl.org for discussions.

PocketIO - realtime applications for Plack

Fri, 23 Sep 2011 12:43:00 GMT

PocketIO is a SocketIO port from Node.JS to Perl. It allows you to write realtime web applications without worring about specific browsers features: from long-polling to WebSockets.

PocketIO is built on top of AnyEvent and Plack, runs smoothly on Twiggy. This way it can be easily combined with other nonblocking Plack apps.

PocketIO can be scaled using Redis pub/sub infrastructure.

Proved to work well in production with 100-150 simultaneous connections. Works just fine with TLS/SSL (via App::TLSme) too.

Check it out. On Github or now on CPAN.