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static int uv__run_pending(uv_loop_t* loop) {
  QUEUE* q;
  QUEUE pq;
  uv__io_t* w;

  if (QUEUE_EMPTY(&loop->pending_queue))
    return 0;

  QUEUE_MOVE(&loop->pending_queue, &pq);

  while (!QUEUE_EMPTY(&pq)) {
    q = QUEUE_HEAD(&pq);
    QUEUE_REMOVE(q);
    QUEUE_INIT(q);
    w = QUEUE_DATA(q, uv__io_t, pending_queue);
    w->cb(loop, w, POLLOUT);
  }

  return 1;
}