Struct WorkingMemory 

pub struct WorkingMemory { /* private fields */ }

Working memory - session-scoped KV store with TTL.

TigerStyle:

• Bounded capacity (~1MB)
• TTL-based expiration
• Explicit size tracking
• DST-compatible via set_clock_ms()

Implementations

impl WorkingMemory

pub fn new() -> Self

Create a new working memory with default configuration.

pub fn with_config(config: WorkingMemoryConfig) -> Self

Create a new working memory with custom configuration.

pub fn set_clock_ms(&mut self, ms: u64)

Set the internal clock (for DST).

TigerStyle: Explicit time control for simulation.

pub fn clock_ms(&self) -> u64

Get the internal clock value.

pub fn set( &mut self, key: &str, value: &[u8], ttl_ms: Option<u64>, ) -> Result<(), WorkingMemoryError>

Set an entry with optional TTL.

If TTL is None, uses the default TTL from config. If key already exists, the entry is replaced and TTL is reset.

Errors

Returns error if entry is too large, memory is full, or too many entries.

pub fn get(&self, key: &str) -> Option<&[u8]>

Get an entry by key.

Returns None if key doesn’t exist or entry is expired.

pub fn delete(&mut self, key: &str) -> bool

Delete an entry by key.

Returns true if entry existed (even if expired), false otherwise.

pub fn exists(&self, key: &str) -> bool

Check if a key exists (and is not expired).

pub fn cleanup_expired(&mut self) -> usize

Remove all expired entries.

Returns the number of entries removed.

pub fn used_bytes(&self) -> usize

Get used bytes (keys + values).

pub fn available_bytes(&self) -> usize

Get available bytes.

pub fn entry_count(&self) -> usize

Get entry count (including expired).

pub fn is_empty(&self) -> bool

Check if empty.

pub fn clear(&mut self)

Clear all entries.

pub fn config(&self) -> &WorkingMemoryConfig

Get configuration.

Trait Implementations

impl Debug for WorkingMemory

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

Formats the value using the given formatter.

impl Default for WorkingMemory

fn default() -> Self

Returns the “default value” for a type.