Method removeEntryLocked

bolt/common/caching/AsyncDataCache.cpp:355–380

}

void CacheShard::removeEntryLocked(AsyncDataCacheEntry* entry) {
  if (!entry->key_.fileNum.hasValue()) {
    return;
  }
  const auto it = entryMap_.find(
      RawFileCacheKey{entry->key_.fileNum.id(), entry->key_.offset});
  BOLT_CHECK(it != entryMap_.end());
  entryMap_.erase(it);
  entry->key_.fileNum.clear();
  entry->setSsdFile(nullptr, 0);
  if (entry->isPrefetch()) {
    entry->setPrefetch(false);
  }
  // An entry can have data allocated if we remove it after failing
  // to fill it. Free the data and account for the difference. In
  // eviction, the data of the evicted entries is moved away, so
  // that freeing while holding the shard mutex is exceptional.
  const auto numPages = entry->data().numPages();
  if (numPages > 0) {
    cache_->incrementCachedPages(-numPages);
    cache_->allocator()->freeNonContiguous(entry->data());
  }
  entry->tinyData_.clear();
  entry->tinyData_.shrink_to_fit();
  entry->size_ = 0;
}

uint64_t CacheShard::evict(
    uint64_t bytesToFree,