Method ScopedWatchdog

src/fl/wdt/watchdog.cpp.hpp:154–178

} // namespace platforms

ScopedWatchdog::ScopedWatchdog(fl::u32 timeout_ms) FL_NOEXCEPT {
    static bool sInitialized = false;
    if (!sInitialized) {
        sInitialized = true;
        platforms::scopedWatchdogFirstInit(timeout_ms);
    }

    // Single-instance enforcement. A second simultaneously-alive ScopedWatchdog
    // is almost always a bug — the timeout argument here was silently ignored
    // (only the first instance gets to arm the WDT). Warn once per process so
    // the developer notices, but still feed so the program survives.
    int& count = platforms::scopedWatchdogActiveCount();
    if (count >= 1) {
        static bool sWarnedOnce = false;
        if (!sWarnedOnce) {
            sWarnedOnce = true;
            platforms::scopedWatchdogPrintLine(fl::string_view(
                "[FastLED.watchdog] WARN: nested FL_WATCHDOG_AUTO() detected — "
                "only one scoped guard should be alive at a time"));
        }
    }
    ++count;

    Watchdog::instance().feed();
}

ScopedWatchdog::~ScopedWatchdog() FL_NOEXCEPT {
    int& count = platforms::scopedWatchdogActiveCount();