trimCache static method

Future<void> trimCache()

Evicts least-recently-used cache entries until the cache fits cacheMaxBytes.

Implementation

static Future<void> trimCache() async {
  final _BucketIndex? index = _indexes[UStorageBucket.cache];
  if (index == null || index.usage <= cacheMaxBytes) return;
  final List<UStorageEntry> byAge = index.entries.values.toList()..sort((UStorageEntry a, UStorageEntry b) => a.accessed.compareTo(b.accessed));
  int usage = index.usage;
  for (final UStorageEntry entry in byAge) {
    if (usage <= cacheMaxBytes) break;
    usage -= entry.size;
    await remove(entry.key, bucket: UStorageBucket.cache);
  }
}