static void registerEvent()

in libs/core/input.cpp [108:141]

• 29 lines of code
• 8 McCabe index (conditional complexity)

static void registerEvent(int dpin, uint8_t type, Action body)
{
    if (!body)
        return;

    int pin = dpin;
    if ((pin >= (int)DigitalPin::D0) && (pin <= (int)DigitalPin::D5))
    {
        pin &= 0x7;
    }
    else if ((pin >= (int)AnalogPin::A0) && (pin <= (int)AnalogPin::A5))
    {
        pin &= 0x7;
    }
    else if ((pin >= 0) && (pin <= 5))
    {
        pin &= 0x7;
    }
    else
    {
        return;
    }

    spawnPinPollThread();

    // Switch the pin to an input, and rely on the Schmitt trigger.
    pinMode(pin, (int)PinMode::Input);

    event_count++;
    events = (InputEvent *)realloc((void *)events, sizeof(*events) * event_count);
    incr(body);
    events[event_count - 1].body = body;
    events[event_count - 1].event_mask = make_event_mask(pin, 0, type, 0);
}