Ask HN: How to learn how to develop real time applications? | Hacker News Reader

Ask HN: How to learn how to develop real time applications?

5 pointscreatorcoder6 comments

I am a C++ programmer and I want to learn how to develop real-time programs. It looks like it's a "lost art" these days.I think we all use such programs every day to one degree or another. For example, if you work with a network, then you probably use wireshark. If you work with audio, then you probably use something from this field. What do I mean by real-time apps? These are applications where we have a part that creates data (or a data stream, with high frequency) and a part that processes it (or gui part, if we somehow process it). I would like to focus specifically on network applications. I'll say right away that I've already read Richard Stevens book[1], but it doesn't seem to be enough to develop applications of this level.

[1] Richard Stevens - Unix Network Programming

Multiplayer games are a type of application that requires real-time networking. Try reading "Multiplayer Game Programming: Architecting Networked Games" by Josh Glazer and Sanjay Madhav. Another type of programming with essential real-time is microcontrollers. You can dig into this way.

Build your own network audio microphone and speaker. Don't cheat by adding a giant buffer. Cause problems on the wifi and figure out how to compensate for those problems.

Thx for advice! It seems that the audio industry also faces challenges related to high-speed data processing and display. I'm was found a very interesting talk CppCon 2015: Timur Doumler “C++ in the Audio Industry” [1]

[1] https://www.youtube.com/watch?v=boPEO2auJj4

Here is how I do it in JavaScript: https://github.com/prettydiff/aphorio

What you need is:

* low overhead full-duplex transmission, which for the web is WebSockets

* service data, which is network messaging in a predefined format for an application to complete a task

* event-oriented architecture, which is that the application automatically executes a thread in response to interactions or observed changes

You mean you want to use websockets to full realtime?

pick something you actually use.. wireshark, a simple packet sniffer, anything and just reverse engineer how it handles the producer/consumer split. that gap between capturing data and displaying it without dropping frames is where all the interesting problems live.

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