Function SetCurrentFile

src/leveldb/db/filename.cc:123–139

}

Status SetCurrentFile(Env* env, const std::string& dbname,
                      uint64_t descriptor_number) {
  // Remove leading "dbname/" and add newline to manifest file name
  std::string manifest = DescriptorFileName(dbname, descriptor_number);
  Slice contents = manifest;
  assert(contents.starts_with(dbname + "/"));
  contents.remove_prefix(dbname.size() + 1);
  std::string tmp = TempFileName(dbname, descriptor_number);
  Status s = WriteStringToFileSync(env, contents.ToString() + "\n", tmp);
  if (s.ok()) {
    s = env->RenameFile(tmp, CurrentFileName(dbname));
  }
  if (!s.ok()) {
    env->DeleteFile(tmp);
  }
  return s;
}

}  // namespace leveldb