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Created January 5, 2015 17:07
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Cat FSM
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Cat FSM.md

DECEMBER 13, 2011

As a continuation of my previous post about the chapter Rage Against The Finite-State Machines from Learn You Some Erlang for Great Good here is a gen_fsm implementation for the Cat's FSM described in the chapter.

This is a primitive one-state FSM, but the difference is that synchronous calls are used.

leikind/1483379

The output:

27> c(cat_fsm).
{ok,cat_fsm}
28> cat_fsm:test().
Switching to 'dont_give_crap' state
<0.145.0>
Cat replied: ok
Switching to 'dont_give_crap' state
Cat replied: ok
Switching to 'dont_give_crap' state
Cat replied: ok
Cat receives an unknown global sync event: hello
Cat receives an unknown global event: how_are_you
terminating with reason normal at state dont_give_crap
29>
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