Struct LocalHeapImage 

pub struct LocalHeapImage { /* private fields */ }

A local heap’s data segment, built up object by object.

This is the bulk-load half of H5HL_insert: every object is placed at the end of the block and the block grows to fit, which is what that function does once its free list is empty. The free list itself is not modelled — the writer rebuilds a group’s heap whole rather than patching the one on disk, so there is never a hole to record.

Implementations

impl LocalHeapImage

pub fn with_empty_string() -> Self

A heap holding just the empty string at offset 0.

Not an optimisation: H5G__stab_create_components asserts that offset, because a symbol-table B-tree’s leftmost key is the empty string and every comparison against it reads heap offset 0.

pub fn insert(&mut self, bytes: &[u8]) -> u64

Append bytes (null terminator included) and return its offset.

pub fn insert_str(&mut self, s: &str) -> u64

Append a name as a null-terminated string, returning its offset.

pub fn as_bytes(&self) -> &[u8]

The data segment’s bytes, whose length is the heap’s data_size.

Trait Implementations

impl Debug for LocalHeapImage

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

Formats the value using the given formatter.

impl Default for LocalHeapImage

fn default() -> Self

Returns the “default value” for a type.