Struct RsegArrayHeader 

pub struct RsegArrayHeader {
    pub size: u32,
}

Rollback segment array page header (page type FIL_PAGE_RSEG_ARRAY, MySQL 8.0+).

This page is the first page of an undo tablespace (.ibu) and contains an array of rollback segment page numbers.

Fields

size: u32

Number of rollback segment slots.

Implementations

impl RsegArrayHeader

pub fn parse(page_data: &[u8]) -> Option<Self>

Parse a rollback segment array header from a full page buffer.

RSEG array header starts at FIL_PAGE_DATA.

pub fn read_slots(page_data: &[u8], max_slots: usize) -> Vec<u32>

Read rollback segment page numbers from the array.

Each slot is a 4-byte page number. Returns up to max_slots entries.

Trait Implementations

impl Clone for RsegArrayHeader

fn clone(&self) -> RsegArrayHeader

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RsegArrayHeader

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Serialize for RsegArrayHeader

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.