Struct WalFramePage 

pub struct WalFramePage {
    pub frame_index: usize,
    pub page_no: u32,
    pub salt1: u32,
    pub salt2: u32,
    pub is_commit: bool,
    pub page: Vec<u8>,
}

One committed WAL frame’s full page image plus its provenance, exposed by Database::wal_frame_pages so the deleted-record carver can scan the uncheckpointed WAL frames the main file does not yet reflect.

The (salt1, salt2, frame_index) triple is the WAL log-sequence identity that task #55 will formalize: salt1/salt2 pin the checkpoint generation and frame_index the position within it.

Fields

frame_index: usize

0-based position of this frame within the -wal file (its LSN ordinal).

page_no: u32

1-based database page number this frame rewrites.

salt1: u32

WAL header salt-1 (checkpoint generation), shared by every live frame.

salt2: u32

WAL header salt-2 (checkpoint generation), shared by every live frame.

is_commit: bool

Whether this is a COMMIT frame (db_size_after_commit != 0).

page: Vec<u8>

The frame’s full page image (page_size bytes).

Trait Implementations

impl Clone for WalFramePage

fn clone(&self) -> WalFramePage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WalFramePage

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

Formats the value using the given formatter.

impl Eq for WalFramePage

impl PartialEq for WalFramePage

fn eq(&self, other: &WalFramePage) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for WalFramePage