The storage details of each page in the memory. More...

#include <buffer_manager.h>

Public Member Functions
	Page ()
	Construct a new Page:: Page object. More...

void	initialize ()
	初始化 More...

void	setFileName (std::string file_name)

std::string	getFileName () const

void	setBlockId (int block_id)

int	getBlockId () const

void	setPinCount (int pin_count)

int	getPinCount () const

void	setDirty (bool dirty)

bool	isDirty () const

void	setAvaliable (bool avaliable)

bool	getAvaliable () const

void	setTime ()

long long	getTime ()

char *	getBuffer ()

std::string	getPageStrId ()

Static Public Member Functions
static std::string	generatePageStrId (const std::string &file_path, int b_id)

Public Attributes
char	buffer_ [PAGESIZE]

std::string	file_name_

int	block_id_

int	pin_count_

bool	dirty_

bool	avaliable_

long long	last_access_time

Detailed Description

The storage details of each page in the memory.

Definition at line 30 of file buffer_manager.h.

Constructor & Destructor Documentation

◆ Page()

Page::Page ( )

Construct a new Page:: Page object.

Definition at line 19 of file buffer_manager.cpp.

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Member Function Documentation

◆ initialize()

void Page::initialize ( )

初始化

Definition at line 26 of file buffer_manager.cpp.

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Member Data Documentation

◆ avaliable_

bool Page::avaliable_

avaliable标示页是否可以被使用(即将磁盘块load进该页)

Definition at line 53 of file buffer_manager.h.

◆ block_id_

int Page::block_id_

页在所在文件中的块号(磁盘中通常叫块)

Definition at line 50 of file buffer_manager.h.

◆ buffer_

char Page::buffer_[PAGESIZE]

每一页都是一个大小为PAGESIZE字节的数组

Definition at line 48 of file buffer_manager.h.

◆ dirty_

bool Page::dirty_

dirty记录页是否被修改

Definition at line 52 of file buffer_manager.h.

◆ file_name_

std::string Page::file_name_

页所对应的文件名

Definition at line 49 of file buffer_manager.h.

◆ pin_count_

int Page::pin_count_

记录被钉住的次数。被钉住的意思就是不可以被替换

Definition at line 51 of file buffer_manager.h.

The documentation for this class was generated from the following files:

src/include/buffer/buffer_manager.h
src/buffer/buffer_manager.cpp

Public Member Functions

Static Public Member Functions

Public Attributes