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 #include "leveldb/iterator.h" 11 12 namespace leveldb { 13 14 struct BlockContents; 15 class Comparator; 16 17 class Block { 18 public: 19 // Initialize the block with the specified contents. 20 explicit Block(const BlockContents& contents); 21 22 ~Block(); 23 size()24 size_t size() const { return size_; } 25 Iterator* NewIterator(const Comparator* comparator); 26 27 private: 28 uint32_t NumRestarts() const; 29 30 const char* data_; 31 size_t size_; 32 uint32_t restart_offset_; // Offset in data_ of restart array 33 bool owned_; // Block owns data_[] 34 35 // No copying allowed 36 Block(const Block&); 37 void operator=(const Block&); 38 39 class Iter; 40 }; 41 42 } // namespace leveldb 43 44 #endif // STORAGE_LEVELDB_TABLE_BLOCK_H_ 45