Struct CheckpointHeader 

#[repr(C)]
pub struct CheckpointHeader {
    pub magic: u64,
    pub version: u32,
    pub header_size: u32,
    pub total_size: u64,
    pub chunk_count: u32,
    pub compression: u32,
    pub checksum: u32,
    pub flags: u32,
    pub created_at: u64,
    pub _reserved: [u8; 8],
}

Checkpoint file header (64 bytes, fixed size).

Fields

magic: u64

Magic number for format identification.

version: u32

Format version number.

header_size: u32

Header size in bytes.

total_size: u64

Total checkpoint size in bytes (including header).

chunk_count: u32

Number of data chunks.

compression: u32

Compression algorithm (0 = none, 1 = lz4, 2 = zstd).

checksum: u32

CRC32 checksum of all data after header.

flags: u32

Flags (reserved for future use).

created_at: u64

Timestamp when checkpoint was created (UNIX epoch microseconds).

_reserved: [u8; 8]

Reserved for alignment.

Implementations

impl CheckpointHeader

pub fn new(chunk_count: u32, total_size: u64) -> Self

Create a new checkpoint header.

pub fn validate(&self) -> Result<()>

Validate the header.

pub fn to_bytes(&self) -> [u8; 64]

Serialize to bytes.

pub fn from_bytes(bytes: &[u8; 64]) -> Self

Deserialize from bytes.

Trait Implementations

impl Clone for CheckpointHeader

fn clone(&self) -> CheckpointHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CheckpointHeader

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

Formats the value using the given formatter.

impl Copy for CheckpointHeader