Struct InMemorySessionKv 

pub struct InMemorySessionKv { /* private fields */ }

Bounded in-memory store, for embedders without durable storage and for state that must not outlive its owner.

Implementations

impl InMemorySessionKv

pub fn new(limits: SessionKvLimits) -> Self

pub fn used_bytes(&self) -> u64

Retained bytes: payloads plus keys plus per-entry overhead.

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn get_now(&self, key: &[u16]) -> Result<Option<Vec<u16>>, SessionKvError>

pub fn has_now(&self, key: &[u16]) -> Result<bool, SessionKvError>

pub fn set_now( &self, key: &[u16], payload: &[u16], ) -> Result<(), SessionKvError>

pub fn remove_now(&self, key: &[u16]) -> Result<bool, SessionKvError>

pub fn scan_now( &self, after: Option<&[u16]>, prefix: &[u16], max_scan: usize, ) -> Result<SessionKvPage, SessionKvError>

Trait Implementations

impl Default for InMemorySessionKv

fn default() -> Self

Returns the “default value” for a type.

impl SessionKvStore for InMemorySessionKv

fn get<'a>(&'a self, key: &'a [u16]) -> SessionKvFuture<'a, Option<Vec<u16>>>

Ok(None) is an absent key. A present entry holding a serialized null returns Ok(Some(..)) — callers distinguish the two.

fn has<'a>(&'a self, key: &'a [u16]) -> SessionKvFuture<'a, bool>

fn set<'a>( &'a self, key: &'a [u16], payload: &'a [u16], ) -> SessionKvFuture<'a, ()>

fn remove<'a>(&'a self, key: &'a [u16]) -> SessionKvFuture<'a, bool>

Ok(true) when an entry existed and was removed.

fn scan<'a>( &'a self, after: Option<&'a [u16]>, prefix: &'a [u16], max_scan: usize, ) -> SessionKvFuture<'a, SessionKvPage>

Keys in UTF-16 code-unit order, strictly after after when given and starting with prefix. Scans at most max_scan keys; matching is exact code units, with no normalization or path semantics. One page is one consistent read.

fn limits(&self) -> SessionKvLimits