mirror of
https://github.com/YuhangQ/InvoDB.git
synced 2025-01-28 23:50:59 +00:00
37 lines
790 B
C++
37 lines
790 B
C++
//
|
|
// Created by YuhangQ on 2021/9/24.
|
|
//
|
|
|
|
#ifndef INVODB_PAGE_MANAGER_H
|
|
#define INVODB_PAGE_MANAGER_H
|
|
|
|
#include <iostream>
|
|
#include <fstream>
|
|
#include <map>
|
|
|
|
#include "storage_page.h"
|
|
|
|
class PageManager {
|
|
public:
|
|
static PageManager& Instance() {
|
|
static PageManager instance;
|
|
return instance;
|
|
}
|
|
static int loadDatabase(const char *filename);
|
|
StoragePage getPage(const int &index);
|
|
void setPage(const int &index, const StoragePage &page);
|
|
int allocate();
|
|
void free(const int &index);
|
|
private:
|
|
std::map<int, StoragePage> map;
|
|
std::fstream stream;
|
|
// 私有化实现单例
|
|
PageManager() {}
|
|
~PageManager() {}
|
|
PageManager(const PageManager&);
|
|
PageManager& operator=(const PageManager&);
|
|
};
|
|
|
|
|
|
#endif //INVODB_PAGE_MANAGER_H
|