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_TABLE_BLOCK_H_ 6 #define STORAGE_LEVELDB_TABLE_BLOCK_H_ 7 8 #include <stddef.h> 9 #include <stdint.h> 10 11 #include "leveldb/iterator.h" 12 13 namespace leveldb { 14 15 struct BlockContents; 16 class Comparator; 17 18 class Block { 19 public: 20 // Initialize the block with the specified contents. 21 explicit Block(const BlockContents& contents); 22 23 Block(const Block&) = delete; 24 Block& operator=(const Block&) = delete; 25 26 ~Block(); 27 size()28 size_t size() const { return size_; } 29 Iterator* NewIterator(const Comparator* comparator); 30 31 private: 32 class Iter; 33 34 uint32_t NumRestarts() const; 35 36 const char* data_; 37 size_t size_; 38 uint32_t restart_offset_; // Offset in data_ of restart array 39 bool owned_; // Block owns data_[] 40 }; 41 42 } // namespace leveldb 43 44 #endif // STORAGE_LEVELDB_TABLE_BLOCK_H_ 45