State machines in C

Question

What is the best way to write a state machine in C?
I usually write a big switch-case statement in a for(;;), with callbacks to re-enter the state machine when an external

Answer 1

Have a look here: http://code.google.com/p/fwprofile/

It's an open source version (GNU GPLv3) of the state machine implemented in C. The concept and implementation is well-suited for use in mission-critical applications. There are deployments in industrial applications.