Struct TokenThreshold 

pub struct TokenThreshold {
    pub max_tokens: u64,
    pub keep_messages: usize,
}

Drop oldest non-system messages when token_estimate exceeds max_tokens.

Uses the same tail-preserving algorithm as crate::MaxMessages, keeping at most keep_messages after the optional leading system message.

Fields

max_tokens: u64

Token estimate that triggers compaction (must be >= 1).

keep_messages: usize

Message count retained after compaction (must be >= 1).

Implementations

impl TokenThreshold

pub fn new( max_tokens: u64, keep_messages: usize, ) -> Result<TokenThreshold, MachiError>

Construct a token-threshold strategy.

Errors

Returns error when max_tokens == 0 or keep_messages == 0.

Trait Implementations

impl Clone for TokenThreshold

fn clone(&self) -> TokenThreshold

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl CompactionStrategy for TokenThreshold

fn name(&self) -> &'static str

Stable strategy id (max_messages, token_threshold, …).

fn should_compact(&self, messages: &[Message], token_estimate: u64) -> bool

Whether compaction should run given current size estimates.

fn compact( &self, messages: Vec<Message>, ) -> Result<CompactionOutcome, MachiError>

Produce a compacted message list.

impl Copy for TokenThreshold

impl Debug for TokenThreshold

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

Formats the value using the given formatter.