Struct SegmentDeleteHeader 

#[repr(C)]
pub struct SegmentDeleteHeader {

    pub checksum: u128,
    pub checksum_body: u128,
    pub cluster: u128,
    pub size: u32,
    pub view: u32,
    pub release: u32,
    pub command: Command,
    pub replica: u8,
    pub reserved_frame: [u8; 66],
    pub nonce: u128,
    pub namespace: u64,
    pub created_revision: u64,
    pub minimum_metadata_op: u64,
    pub up_to_offset: u64,
    pub segments_count: u32,
    pub kind: SegmentDeleteKind,
    pub reserved: [u8; 75],
}

Resolve a segment count on the partition primary before metadata commits the resulting truncation.

Replies echo the nonce and history fields; ingress authenticates the replica and the requester correlates the reply.

Fields

checksum: u128

checksum_body: u128

cluster: u128

size: u32

view: u32

release: u32

command: Command

replica: u8

reserved_frame: [u8; 66]

nonce: u128

namespace: u64

created_revision: u64

minimum_metadata_op: u64

up_to_offset: u64

segments_count: u32

kind: SegmentDeleteKind

reserved: [u8; 75]

Trait Implementations

impl CheckedBitPattern for SegmentDeleteHeader

type Bits = SegmentDeleteHeaderBits

Self must have the same layout as the specified Bits except for the possible invalid bit patterns being checked during is_valid_bit_pattern.

fn is_valid_bit_pattern(bits: &SegmentDeleteHeaderBits) -> bool

If this function returns true, then it must be valid to reinterpret bits as &Self.

impl Clone for SegmentDeleteHeader

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ConsensusHeader for SegmentDeleteHeader

const FRAME_SEALED: bool = true

Whether this header’s checksum field seals the frame.

const COMMAND: Command = Command::SegmentDelete

fn checksum(&self) -> u128

The checksum field, whatever this header spends it on.

fn set_checksum(&mut self, checksum: u128)

Overwrite the checksum field.

fn operation(&self) -> Operation

fn command(&self) -> Command

fn size(&self) -> u32

fn validate(&self) -> Result<(), ConsensusError>

Errors

const IDENTITY_CHECKSUMMED: bool = false

Whether checksum carries the prepare identity, which covers the operation byte: an unknown operation on such a frame can be authenticated from the raw bytes even though the typed view refuses to cast. False wherever checksum seals the frame or crosses the client boundary.

const OPERATION_OFFSET: Option<usize> = None

Byte offset of this header’s operation field, None when it carries none.

fn accepts(command: Command) -> bool

Whether a frame carrying command may be typed as this header. Defaults to an exact match; a header that serves several commands with one layout (e.g. RepairDone / RangeEvicted) widens it.

fn frame_checksum(&self) -> u128

Checksum over every byte of the header past checksum itself.

fn seal(&mut self)

Stamp Self::frame_checksum. Call last when building a frame: it covers every other field, checksum_body included, so later writes are uncovered.

fn verify_frame(&self) -> Result<(), ConsensusError>

Reject a frame whose header does not match its own checksum.

impl Copy for SegmentDeleteHeader

impl Debug for SegmentDeleteHeader

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

Formats the value using the given formatter.

impl Eq for SegmentDeleteHeader

impl NoUninit for SegmentDeleteHeader

impl PartialEq for SegmentDeleteHeader

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SegmentDeleteHeader