#define SILC_FSM_CONTINUE ...

    Moves to next state synchronously.  This type is used is returned
    from state functions to immediately move to next state.

    SILC_FSM_STATE(silc_foo_state)
    {
      ...

      // Move to next state now
      silc_fsm_next(fsm, silc_foo_next_state);
      return SILC_FSM_CONTINUE;
    }