Struct SuperblockExtension 

pub struct SuperblockExtension {
    pub shared_message_table: Option<SharedMessageTableMessage>,
    pub btree_k: Option<BtreeKMessage>,
    pub driver_info: Option<DriverInfoMessage>,
    pub file_space_info: Option<FileSpaceInfoMessage>,
}

Everything the superblock extension object header contributes to the file-level view.

H5Fsuper.c::H5F__super_read opens this header immediately after decoding the superblock, before any user object is reachable, so every message here is in force for the first metadata decode that follows.

Fields

shared_message_table: Option<SharedMessageTableMessage>

Shared Message Table message (0x000F): where the SOHM master table is.

btree_k: Option<BtreeKMessage>

v1 B-tree “K” values message (0x0013): non-default split ranks.

driver_info: Option<DriverInfoMessage>

Driver info message (0x0014).

file_space_info: Option<FileSpaceInfoMessage>

File space info message (0x0017): allocation strategy, page size, and the persisted free-space manager addresses.

Trait Implementations

impl Clone for SuperblockExtension

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SuperblockExtension

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

Formats the value using the given formatter.

impl Default for SuperblockExtension

fn default() -> Self

Returns the “default value” for a type.

impl Eq for SuperblockExtension

impl PartialEq for SuperblockExtension

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SuperblockExtension