[Article] C++20 Practical Coroutines - scheduler

scheduler.cc

scheduler_task main_scheduler_impl() {
  auto &promise = co_await scheduler_task::get_promise;
  while (true) {
    for (auto &em : promise.emitters_) {
      for (auto *ev = em->emit(); ev != nullptr; ev = em->emit()) {
        co_yield ev;
      }
    }
  }
}