Method DeleteFile

be/src/kudu/util/file_cache.cc:621–658

}

Status FileCache::DeleteFile(const string& file_name) {
  // Mark any outstanding descriptor as deleted. Because there may only be one
  // descriptor per file name, we can short circuit the search if we find a
  // descriptor in the first map.
  {
    std::lock_guard<simple_spinlock> l(lock_);
    bool ignored;
    {
      auto d = FindDescriptorUnlocked(file_name, FindMode::DONT_CREATE,
                                      &rwf_descs_, &ignored);
      if (d) {
        if (d->base_.deleted()) {
          return Status::NotFound(kAlreadyDeleted, file_name);
        }
        d->base_.MarkDeleted();
        return Status::OK();
      }
    }
    {
      auto d = FindDescriptorUnlocked(file_name, FindMode::DONT_CREATE,
                                      &raf_descs_, &ignored);
      if (d) {
        if (d->base_.deleted()) {
          return Status::NotFound(kAlreadyDeleted, file_name);
        }
        d->base_.MarkDeleted();
        return Status::OK();
      }
    }
  }

  // There are no outstanding descriptors. Delete the file now.
  //
  // Make sure it's been fully evicted from the cache (perhaps it was opened
  // previously?) so that the filesystem can reclaim the file data instantly.
  cache_->Erase(file_name);
  return env_->DeleteFile(file_name);
}

void FileCache::Invalidate(const string& file_name) {
  // Ensure that there are invalidated descriptors in both maps for this