Function get

src/background/utils/storage-cache.js:47–73

(keys)

export const cachedStorageApi = storage.api = {

  async get(keys) {
    const res = {};
    cache.batch(true);
    keys = keys?.filter(key => {
      const cached = cache.get(key);
      const ok = cached !== undefined;
      if (ok) res[key] = deepCopy(cached);
      return !ok && dbKeys.get(key) !== 0;
    });
    if (!keys || keys.length) {
      let lifetime, id;
      if (!keys) lifetime = TTL_SKIM; // DANGER! Must be `undefined` otherwise.
      (await api.get(keys))::forEachEntry(([key, val]) => {
        res[key] = val;
        dbKeys.set(key, 1);
        cache.put(key, deepCopy(val), lifetime);
        if (key.startsWith(S_SCRIPT_PRE)) {
          updateScriptMap(key, val);
        } else if (key.startsWith(S_MOD_PRE) && (id = +key.slice(S_MOD_PRE.length))) {
          scriptSiteVisited[id] = val;
        }
      });
      keys?.forEach(key => !hasOwnProperty(res, key) && dbKeys.set(key, 0));
    }
    cache.batch(false);
    return res;
  },

  async set(data, flushNow) {
    const toWrite = {};