Function getCacheEntry

examples/pdf-server/server.ts:726–741

Get cached data and refresh the inactivity timer

(url: string)

  /** Get cached data and refresh the inactivity timer */
  function getCacheEntry(url: string): Uint8Array | undefined {
    const entry = cache.get(url);
    if (!entry) return undefined;

    // Refresh inactivity timer on access
    clearTimeout(entry.inactivityTimer);
    entry.inactivityTimer = setTimeout(() => {
      deleteCacheEntry(url);
    }, CACHE_INACTIVITY_TIMEOUT_MS);

    // Move to end of insertion order so size-cap eviction is LRU.
    cache.delete(url);
    cache.set(url, entry);

    return entry.data;
  }

  /** Add data to cache with both inactivity and max lifetime timers */
  function setCacheEntry(url: string, data: Uint8Array): void {