Posts in practice
2 * 1 hour
The publish-subscribe architecture-pattern is very popular to route messages, according to WikiPedia. It is used much more generic, however. This workshop shows how
to use it in an embedded application, or another single process application.
Then it becomes a HighTech (embedded) software design pattern.
We start with a simple implementation of Pub/Sub. You can experiment with that (Python) code and/or port it to your favorite language. Then, you are asked to design a cached, distributed version. Which is a bit more ambitious. And even though the result is probably pointless, it’s a great Design-Exercise and a lot of fun!
It will help you to understand Pub/Sub, help you to use it in embedded software. Eventually, you may need Pub/Sub in a
distributed environment. Then, it is better to use one of the existing ones, like DDS (Data Distribution Service); which more efficient and even
But, by knowing how to implement it and are able to design it, will help you to use it for the better
2 * 1 hour
This workshop is about the ThreadPoolExecutor (‘TPE’ for friends): a pool of workers implemented with Threads. This is a modern, advanced design-pattern available in many languages.
You will get an introduction to the concepts, to be able to use the ‘TPE’. Also, we study Python implementation, to practice design-analyse.
This is an optional exercise for the python-3 workshops: program a discrete PID-controller.
class definition is given; which has to be tested and implemented. By starting
with the test-part, which is advisable anyhow (the TDD approach), the exercise starts simple.