How to port coroutine-style code & event loops to CIB ?

[antonysigma]

Hi I have just watched the seminar on the cib.hpp library. I like how we can modularize hardware functions as services, and bind them with external commands, without runtime overhead.

Following #30 , how do I refactor a FreeRTOS-style code from the following LED blinker example to cib.hpp? Here, there are two co-routines performing their own initializations, and then enters their own event loops iterating at 1000ms and 200ms correspondingly. I am assuming a single-thread application compiled by either avr-gcc or stm32-aarch64-gcc.

volatile bool is_led_on = false;

void loopLED() noexcept {
   setupLED();
   bool led_blink_state = true;
   for(;;) {
         if(is_led_on) {
              digitalWrite(led_blink_state);
              led_blink_state = ! led_blink_state;
         } else {
              digitalWrite(false);
         }
             
         using std::chrono_literal;
         Rtos.resume_after(1000ms);
   }
   teardownLED();
}

void loopButton() noexcept {
    setupButton();
    for (;;) {
        if (button1.is_pressed()) {
            is_led_on = ! is_led_on;
        }
        using std::chrono_literal;
        Rtos.resume_after(200ms);
    }
    teardownButton();
}

In particular, how do I refactor the above setup -> event loop -> teardown code to utilize CIB's compile time init() flow builder? How do I bind the button press event to the LED service? I hope to watch and learn how it is done in the CIB style.