Struct TokenEfficientHistory 

pub struct TokenEfficientHistory {
    pub messages: Vec<Message>,
    pub compressed_history: Option<CompressedHistory>,
    pub max_tokens: usize,
    pub current_tokens: usize,
    pub keep_recent: usize,
    pub compression_level: i32,
    pub total_messages_added: usize,
    pub tokens_saved_by_compression: usize,
}

Token-efficient conversation history with real zstd compression

Fields

messages: Vec<Message>

Active messages in the conversation (uncompressed, recent)

compressed_history: Option<CompressedHistory>

Compressed older messages (zstd compressed)

max_tokens: usize

Maximum token limit

current_tokens: usize

Current token count (approximate)

keep_recent: usize

Number of recent messages to keep uncompressed

compression_level: i32

Compression level for zstd

total_messages_added: usize

Total messages ever added (including compressed)

tokens_saved_by_compression: usize

Total tokens saved through compression

Implementations

impl TokenEfficientHistory

pub fn new() -> Self

Create a new history

pub fn add_message(&mut self, role: MessageRole, content: String)

Add a message to the history

pub fn add_message_struct(&mut self, message: Message)

Add a message struct directly to the history

pub fn compress_old_messages(&mut self)

Compress old messages using zstd

pub fn decompress_history(&self) -> Option<Vec<Message>>

Decompress and retrieve all historical messages

pub fn get_all_messages(&self) -> Vec<Message>

Get all messages including decompressed history

pub fn get_messages_within_limit(&self, token_limit: usize) -> Vec<&Message>

Get messages within token limit

pub fn get_compression_stats(&self) -> CompressionStats

Get compression statistics

Trait Implementations

impl Clone for TokenEfficientHistory

fn clone(&self) -> TokenEfficientHistory

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TokenEfficientHistory

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

Formats the value using the given formatter.

impl Default for TokenEfficientHistory

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TokenEfficientHistory

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for TokenEfficientHistory

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.