Function waitForDeferreds

packages/kernel/runtime-quickjs/src/index.ts:388–418

(
  pendingDeferreds: ReadonlySet<QuickJSDeferredPromise>,
  deadline: DeadlineTracker,
  timeoutMs: number,
)

};

const waitForDeferreds = async (
  pendingDeferreds: ReadonlySet<QuickJSDeferredPromise>,
  deadline: DeadlineTracker,
  timeoutMs: number,
): Promise<void> => {
  const settled = Promise.race([...pendingDeferreds].map((deferred) => deferred.settled));
  const deadlineMs = deadline.deadlineMs();
  if (deadlineMs === null) {
    await settled;
    return;
  }

  const remainingMs = deadlineMs - Date.now();
  if (remainingMs <= 0) {
    throw new Error(timeoutMessage(timeoutMs));
  }

  let timer: ReturnType<typeof setTimeout> | undefined;
  try {
    await Promise.race([
      settled,
      new Promise<never>((_, reject) => {
        timer = setTimeout(() => reject(new Error(timeoutMessage(timeoutMs))), remainingMs);
      }),
    ]);
  } finally {
    if (timer !== undefined) {
      clearTimeout(timer);
    }
  }
};

const drainAsync = async (
  context: QuickJSContext,