399   struct BackupAfterCopyOrCreateWorkItem {  struct in ROCKSDB_NAMESPACE::BackupEngineImpl
400     std::future<CopyOrCreateResult> result;
401     bool shared;
402     bool needed_to_copy;
403     Env* backup_env;
404     std::string dst_path_tmp;
405     std::string dst_path;
406     std::string dst_relative;
407     BackupAfterCopyOrCreateWorkItem()  in BackupAfterCopyOrCreateWorkItem()  function
415     BackupAfterCopyOrCreateWorkItem(BackupAfterCopyOrCreateWorkItem&& o)  in BackupAfterCopyOrCreateWorkItem()  function
420     BackupAfterCopyOrCreateWorkItem& operator=(  in operator =()
432     BackupAfterCopyOrCreateWorkItem(std::future<CopyOrCreateResult>&& _result,  in BackupAfterCopyOrCreateWorkItem()  function