Struct ObjectHeader 

pub struct ObjectHeader {
    pub version: u8,
    pub messages: Vec<HdfMessage>,
    pub reference_count: u32,
    pub modification_time: Option<u32>,
}

Parsed object header with all its messages.

Fields

version: u8

Object header format version (1 or 2).

messages: Vec<HdfMessage>

All parsed header messages, collected from every chunk.

reference_count: u32

Object reference count.

modification_time: Option<u32>

Modification time in seconds since the UNIX epoch (v2 only, when the “times stored” flag is set).

Implementations

impl ObjectHeader

pub fn parse_at( data: &[u8], address: u64, offset_size: u8, length_size: u8, ) -> Result<Self>

Parse an object header at the given absolute file address.

data is the entire file mapped into memory, address is the byte offset where the object header starts, and offset_size / length_size come from the superblock.

pub fn parse_at_storage( storage: &dyn Storage, address: u64, offset_size: u8, length_size: u8, ) -> Result<Self>

Parse an object header from random-access storage.

pub fn resolve_shared_messages( &mut self, data: &[u8], offset_size: u8, length_size: u8, ) -> Result<()>

Resolve shared messages by following references to other object headers.

For SharedInOhdr, the referenced object header is parsed and the matching message type is extracted. SharedInSohm requires the storage-backed resolver because the SOHM table lives in file metadata.

pub fn resolve_shared_messages_storage( &mut self, storage: &dyn Storage, offset_size: u8, length_size: u8, ) -> Result<()>

Resolve shared messages by following references via random-access storage.

Trait Implementations

impl Clone for ObjectHeader

fn clone(&self) -> ObjectHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ObjectHeader

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

Formats the value using the given formatter.