code: public void openDiskCacheAsync() {
          if (DEBUG) {
              CLog.d(LOG_TAG, "%s: initDiskCacheAsync", mDiskCache);
          }
          synchronized (mDiskCacheLock) {
              mDiskCacheStarting = true;
              new FileCacheTask(TASK_INIT_CACHE).executeNow();
          }
      }
docs: initiate the disk cache