Struct Superblock 

pub struct Superblock {
    pub version: u8,
    pub size_of_offsets: u8,
    pub size_of_lengths: u8,
    pub base_address: u64,
    pub root_group_address: u64,
    pub end_of_file_address: u64,
    pub extension_address: u64,
}

The HDF5 superblock, parsed from the beginning of the file.

Contains file-level parameters that control interpretation of all other structures: the sizes of offset and length fields, and the address of the root group.

Fields

version: u8

Superblock version (0, 1, 2, or 3).

size_of_offsets: u8

Number of bytes used for addresses (offsets) throughout the file.

size_of_lengths: u8

Number of bytes used for sizes (lengths) throughout the file.

base_address: u64

File base address (usually 0).

root_group_address: u64

Address of the root group’s object header.

end_of_file_address: u64

End-of-file address.

extension_address: u64

Address of the superblock extension object header (v2/v3 only, may be UNDEF).

Implementations

impl Superblock

pub fn parse(data: &Bytes) -> Result<(Self, u64)>

Parse a superblock from the initial bytes of an HDF5 file.

The HDF5 signature may appear at offset 0, 512, 1024, 2048, or any power-of-two multiple of 512. We search the first few candidates.

Trait Implementations

impl Clone for Superblock

fn clone(&self) -> Superblock

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Superblock

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

Formats the value using the given formatter.