How to set up persistent storage for Mosquitto MQTT broker

Mosquitto is a lightweight MQTT broker that is suitable for embedded use. It also provides built-in support to persist and store messages which can be used to implement reliable communication even when the network is not stable. This post describes how to set up the persistent storage, what are the main parameters to tune it and how to troubleshoot the setup. Continue reading “How to set up persistent storage for Mosquitto MQTT broker”

Common misconception with C++ move semantics

Move semantics have to be one of the most prominent new features in C++11. It is also something that can be a source of misunderstandings if the underlying mechanics are not fully understood. The fact is that std::move does not actually move anything. Yet, its name would suggest otherwise. So, let’s clear up this misconception.
Continue reading “Common misconception with C++ move semantics”

My experiences learning Rust

Having seen a lot of positive buzz around the Rust language, I decided to look into it myself aswell. So, past couple of weeks I have been reading the second edition of The Rust Programming Language book which is an introductory to the language. This blog post is a round-up of my first impressions about the language and its features, and it also serves as a quick intro for others interested in it. In my day job I work mostly with C and C++ so those are my main reference points when learning a new language. Continue reading “My experiences learning Rust”