Struct ChunkTreeCache 

pub struct ChunkTreeCache { /* private fields */ }

Cache of chunk tree mappings for resolving logical to physical addresses.

Keyed by logical start address. Uses a BTreeMap for efficient range lookups.

Implementations

impl ChunkTreeCache

pub fn insert(&mut self, mapping: ChunkMapping)

Insert a chunk mapping into the cache.

pub fn lookup(&self, logical: u64) -> Option<&ChunkMapping>

Look up the chunk mapping that contains the given logical address.

pub fn resolve(&self, logical: u64) -> Option<u64>

Resolve a logical address to a physical byte offset on the first stripe.

For read-only access (like dump-tree), the first stripe is sufficient for single, DUP, and RAID1 profiles. RAID0/5/6/10 would need stripe index calculation, but for the common case this works.

pub fn len(&self) -> usize

Return the number of cached chunk mappings.

pub fn is_empty(&self) -> bool

Return true if the cache is empty.

Trait Implementations

impl Debug for ChunkTreeCache

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

Formats the value using the given formatter.

impl Default for ChunkTreeCache

fn default() -> ChunkTreeCache

Returns the “default value” for a type.