Method resume

src/platforms/shared/coroutine_context.cpp.hpp:110–138

}

void CoroutineContext::resume() FL_NOEXCEPT {
    if (mCompleted) {
        return;
    }

    auto& platform = ICoroutinePlatform::instance();

    // ISR guard — context switching from interrupt handler corrupts state
    if (platform.inInterruptContext()) {
        return;
    }

    // Re-entrancy guard: if another coroutine is already running (e.g. a
    // coroutine called suspend() which re-entered run()), skip. There's
    // only one runner context save slot — a nested contextSwitch would
    // overwrite it.
    if (globals().current != nullptr) {
        return;
    }

    globals().current = this;
    mStarted = true;

    void* runner = get_runner_ctx();
    platform.contextSwitch(runner, mPlatformCtx);

    // We're back — coroutine suspended or completed
    globals().current = nullptr;
}

CoroutineContext* CoroutineContext::runningCoroutine() FL_NOEXCEPT {
    return globals().current;