drewfish / arduino-trimwright Goto Github PK

I observed in the blink example (blink/main.cpp) that the state machine first processes "ENTER" before processing "INIT".
blink.init((State) &Blink::stateON);

In the init() code below from TrimWright.cpp, what is the purpose of having it sending the SIG_ENTER before sending SIG_INIT? One would think that init() should only cause a SIG_INIT event.

FSM::init(State initial) { m_stateCurrent = initial; _TW_PSEUDO(m_stateCurrent, SIG_ENTER);

Is there a way to initialize the state machine without entering the state?

Eddie

FYI
I got a linker error when trying to build a android library using another library that has the TrimWright .h and .cpp in it.
The error is:
out/target/product/myExperiment/obj_arm/SHARED_LIBRARIES/libneorender_intermediates/src/UsRenderer.o:UsRenderer.cpp:typeinfo for gfx::UsRenderer: error: undefined reference to 'typeinfo for StateMachineTrimWright::FSM'

The error was resolved by making the function below non virtual (it doesn't make sense to me why this would be a linker issue).

// This dispatches an event to the current state.
// It doesn't generally need to be overridden by child classes.
//virtual void dispatch(const Event* event);
void dispatch(const Event* event);