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TinyFSM

TinyFSM is a simple finite state machine library for C++, designed for optimal performance and low memory footprint. This makes it ideal for real-time operating systems. The concept is very simple, allowing the programmer to fully understand what is happening behind the scenes. It provides a straightforward way of mapping your state machine charts into source code.

TinyFSM basically wraps event dispatching into function calls, making event dispatching equally fast to calling (or even inlining) a function. Even in the worst case, dispatching leads to nothing more than a single vtable lookup and function call!

Key Features:

• Entry/exit actions
• Event actions
• Transition functions
• Transition conditions
• Event payload (classes)
• Inheritance of states and action functions

TinyFSM benefits from the C++11 template metaprogramming features like variadic templates, and does not depend on RTTI, exceptions or any external library.

Official home page: https://digint.ch/tinyfsm

Current version: 0.3.3

Installation

TinyFSM is a header-only library, no special installation steps are needed. Just point your compiler to the "include" directory.

Documentation

You can find the full documentation in the doc/ directory:

• Introduction
• Installation
• Concepts
• Usage
• API

The docmentation is also available on the official home page.

Code examples

• Elevator Project: Documented example, two state machines with shiny buttons, floor sensors and actors.
• Simple Switch: A generic switch with two states (on/off).
• API examples

Donate

So TinyFSM has proven useful for you?

I will definitively continue to develop TinyFSM for free. If you want to support me with a donation, you are welcome to do so!

Development

The source code for TinyFSM is managed using Git:

git clone https://dev.tty0.ch/tinyfsm.git

Mirror on GitHub:

git clone https://github.com/digint/tinyfsm.git

If you would like to contribute or have found bugs, visit the TinyFSM project page on GitHub and use the issues tracker there.

Contact

For questions and suggestions regarding TinyFSM, success or failure stories, and any other kind of feedback, please feel free to contact the author (the email address can be found in the sources).

License

TinyFSM is Open Source software. It may be used for any purpose, including commercial purposes, at absolutely no cost. It is distributed under the terms of the MIT license.