Struct SuperblockV2V3 

pub struct SuperblockV2V3 {
    pub version: u8,
    pub sizeof_offsets: u8,
    pub sizeof_lengths: u8,
    pub file_consistency_flags: u8,
    pub base_address: u64,
    pub superblock_extension_address: u64,
    pub end_of_file_address: u64,
    pub root_group_object_header_address: u64,
}

Superblock v2/v3 structure.

Layout (O = sizeof_offsets):

[0..8]              Signature (8 bytes)
[8]                 Version (1 byte)
[9]                 Size of Offsets (1 byte)
[10]                Size of Lengths (1 byte)
[11]                File Consistency Flags (1 byte)
[12..12+O]          Base Address (O bytes)
[12+O..12+2O]       Superblock Extension Address (O bytes)
[12+2O..12+3O]      End of File Address (O bytes)
[12+3O..12+4O]      Root Group Object Header Address (O bytes)
[12+4O..12+4O+4]    Checksum (4 bytes)

Fields

version: u8

Superblock version: 2 or 3.

sizeof_offsets: u8

Size of file offsets in bytes (typically 8).

sizeof_lengths: u8

Size of file lengths in bytes (typically 8).

file_consistency_flags: u8

File consistency flags (see FLAG_* constants).

base_address: u64

Base address of the file (usually 0).

superblock_extension_address: u64

Address of the superblock extension object header, or UNDEF.

end_of_file_address: u64

End-of-file address.

root_group_object_header_address: u64

Address of the root group object header.

Implementations

impl SuperblockV2V3

pub fn encoded_size(&self) -> usize

Returns the total encoded size in bytes: 12 + 4*O + 4 (checksum).

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

Encode the superblock to a byte vector, including the trailing checksum.

pub fn decode(buf: &[u8]) -> FormatResult<Self>

Decode a superblock from a byte buffer. Verifies the signature, version, and checksum. Returns the parsed superblock.

Trait Implementations

impl Clone for SuperblockV2V3

fn clone(&self) -> SuperblockV2V3

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SuperblockV2V3

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

Formats the value using the given formatter.

impl Eq for SuperblockV2V3

impl PartialEq for SuperblockV2V3

fn eq(&self, other: &SuperblockV2V3) -> 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 SuperblockV2V3