Struct SegmentHeader 

pub struct SegmentHeader {
    pub format: u32,
    pub shard: u32,
    pub segment: u64,
    pub base_lsn: Lsn,
    pub created_ms: u64,
}

Fields

format: u32

shard: u32

segment: u64

base_lsn: Lsn

created_ms: u64

Implementations

impl SegmentHeader

pub fn new(shard: u32, segment: u64, base_lsn: Lsn, created_ms: u64) -> Self

pub fn encode(&self) -> Vec<u8>

The full header block, zero padded to HEADER_BYTES.

pub fn decode(bytes: &[u8]) -> Result<Option<Self>, ScanError>

Ok(None) for an all-zero (preallocated, never activated) header.

Trait Implementations

impl Clone for SegmentHeader

fn clone(&self) -> SegmentHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SegmentHeader

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

Formats the value using the given formatter.

impl PartialEq for SegmentHeader

fn eq(&self, other: &SegmentHeader) -> 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 Copy for SegmentHeader

impl Eq for SegmentHeader

impl StructuralPartialEq for SegmentHeader