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      1 // Copyright (c) 2011 The LevelDB Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file. See the AUTHORS file for names of contributors.
      4 
      5 #ifndef STORAGE_LEVELDB_DB_DB_ITER_H_
      6 #define STORAGE_LEVELDB_DB_DB_ITER_H_
      7 
      8 #include <stdint.h>
      9 #include "leveldb/db.h"
     10 #include "db/dbformat.h"
     11 
     12 namespace leveldb {
     13 
     14 class DBImpl;
     15 
     16 // Return a new iterator that converts internal keys (yielded by
     17 // "*internal_iter") that were live at the specified "sequence" number
     18 // into appropriate user keys.
     19 extern Iterator* NewDBIterator(
     20     DBImpl* db,
     21     const Comparator* user_key_comparator,
     22     Iterator* internal_iter,
     23     SequenceNumber sequence,
     24     uint32_t seed);
     25 
     26 }  // namespace leveldb
     27 
     28 #endif  // STORAGE_LEVELDB_DB_DB_ITER_H_
     29