Struct BTreeHeaderPage 

pub struct BTreeHeaderPage { /* private fields */ }

Binary Layout

• 4 bytes: page category
• n bytes: header

Implementations

impl BTreeHeaderPage

pub fn new(pid: &BTreePageID, bytes: &[u8]) -> BTreeHeaderPage

pub fn new_empty_page(pid: &BTreePageID) -> BTreeHeaderPage

pub fn mark_slot_status(&mut self, slot_index: usize, used: bool)

pub fn get_slots_count(&self) -> usize

pub fn get_empty_slot(&self) -> Option<u32>

Trait Implementations

impl BTreePage for BTreeHeaderPage

fn new( pid: &BTreePageID, bytes: &[u8], _tuple_scheme: &Schema, _key_field: usize, ) -> Self

fn get_pid(&self) -> BTreePageID

fn get_parent_pid(&self) -> BTreePageID

fn set_parent_pid(&mut self, pid: &BTreePageID)

fn get_page_data(&self) -> Vec<u8>

Generates a byte array representing the contents of this page. Used to serialize this page to disk.

fn set_before_image(&mut self)

fn get_before_image(&self) -> Vec<u8>

Provide a representation of this page before any modifications were made to it. Used by recovery.

fn peek(&self)