Simple C++ State Machine Engine

Simple C++ State Machine Engine

Massimiliano Pagani

Still RelevantIntermediate

When implementing state machines in your project it is an advantage to rely on a tried and tested state machine engine. This component is reused for every kind of application and helps the developer focus on the domain part of the software. In this article, the design process that turns a custom C++ code into a finite-state machine engine is fully described with motivations and tradeoffs for each iteration.

Summary

Massimiliano Pagani walks through the design process of turning custom C++ code into a compact, reusable finite-state machine engine. The article explains motivations, design iterations, and tradeoffs so developers can adopt a proven FSM component and concentrate on application domain logic.

Key Takeaways

Implement a lightweight C++ finite-state machine engine suitable for embedded constraints.
Apply iterative design choices and tradeoffs to balance readability, performance, and memory use.
Integrate the engine with RTOS or bare-metal environments, including event and timer handling.
Design for reuse across projects and create testable FSMs to simplify debugging and verification.

Who Should Read This

Embedded firmware engineers and C++ developers building microcontroller applications who need a reusable, testable state machine engine to simplify domain logic and improve maintainability.

Still RelevantIntermediate