Du kan inte välja fler än 25 ämnen
Ämnen måste starta med en bokstav eller siffra, kan innehålla bindestreck ('-') och vara max 35 tecken långa.
44 rader
1023 B
44 rader
1023 B
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file. See the AUTHORS file for names of contributors.
|
|
|
|
#ifndef STORAGE_LEVELDB_TABLE_BLOCK_H_
|
|
#define STORAGE_LEVELDB_TABLE_BLOCK_H_
|
|
|
|
#include <cstddef>
|
|
#include <cstdint>
|
|
|
|
#include "leveldb/iterator.h"
|
|
|
|
namespace leveldb {
|
|
|
|
struct BlockContents;
|
|
class Comparator;
|
|
|
|
class Block {
|
|
public:
|
|
// Initialize the block with the specified contents.
|
|
explicit Block(const BlockContents& contents);
|
|
|
|
Block(const Block&) = delete;
|
|
Block& operator=(const Block&) = delete;
|
|
|
|
~Block();
|
|
|
|
size_t size() const { return size_; }
|
|
Iterator* NewIterator(const Comparator* comparator);
|
|
|
|
private:
|
|
class Iter;
|
|
|
|
uint32_t NumRestarts() const;
|
|
|
|
const char* data_;
|
|
size_t size_;
|
|
uint32_t restart_offset_; // Offset in data_ of restart array
|
|
bool owned_; // Block owns data_[]
|
|
};
|
|
|
|
} // namespace leveldb
|
|
|
|
#endif // STORAGE_LEVELDB_TABLE_BLOCK_H_
|