Struct PackedSessionWrite 

pub struct PackedSessionWrite { /* private fields */ }

Packed write buffer for replacing one session’s chunk set.

A packed write stores all values for a session in one slab, reducing allocator work for KV-cache style batches.

Implementations

impl PackedSessionWrite

pub fn with_capacity( session_prefix: Bytes, item_capacity: usize, value_bytes_capacity: usize, ) -> Self

Creates an empty packed session write with preallocated capacities.

pub fn from_owned_items( session_prefix: Bytes, items: Vec<(Bytes, Bytes)>, ) -> Self

Builds a packed session write from owned key/value pairs.

pub fn item_count(&self) -> usize

Returns the number of records in the packed write.

pub fn stored_bytes(&self) -> usize

Returns the number of value bytes stored in the packed write.

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

Returns the session prefix this write replaces.

pub fn value_buffer_len(&self) -> usize

Returns the length of the contiguous value buffer.

pub fn value_buffer_mut(&mut self) -> &mut Vec<u8>

Returns the mutable contiguous value buffer for custom packing.

pub fn push_owned_record(&mut self, key: Bytes, value: Bytes)

Appends an owned key/value record to the packed write.

pub fn push_prepacked_record(&mut self, key: Bytes, offset: usize, len: usize)

Appends a key whose value already lives in the packed value buffer.

pub fn cloned_records(&self) -> Vec<(Bytes, Bytes)>

Returns cloned key/value records for inspection or persistence.

Trait Implementations

impl Debug for PackedSessionWrite

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

Formats the value using the given formatter.