mirror of
https://github.com/facebook/rocksdb.git
synced 2024-11-26 16:30:56 +00:00
49fbd5531b
Summary: In table.cc, the code section that reads in BlockContent and then put it into a Block, appears at least 4 times. This is too much duplication. BlockReader is much shorter after the change and reads way better. D10077 attempted that for index block read. This is a complete cleanup. Test Plan: make check; ./db_stress Reviewers: dhruba, sheki Reviewed By: dhruba CC: leveldb Differential Revision: https://reviews.facebook.net/D10527
47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
// 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 <stddef.h>
|
|
#include <stdint.h>
|
|
#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();
|
|
|
|
size_t size() const { return size_; }
|
|
bool isCachable() const { return cachable_; }
|
|
Iterator* NewIterator(const Comparator* comparator);
|
|
|
|
private:
|
|
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_[]
|
|
bool cachable_;
|
|
|
|
// No copying allowed
|
|
Block(const Block&);
|
|
void operator=(const Block&);
|
|
|
|
class Iter;
|
|
};
|
|
|
|
} // namespace leveldb
|
|
|
|
#endif // STORAGE_LEVELDB_TABLE_BLOCK_H_
|