Struct FileCostMeter 

pub struct FileCostMeter { /* private fields */ }

Durable cost meter with optional per-session token budget.

Implementations

impl FileCostMeter

pub fn new( root: PathBuf, session_token_budget: Option<u64>, ) -> Result<Self, CostError>

Create a file-backed cost meter rooted at root.

Errors

Returns a backend error when the root directory cannot be created.

Trait Implementations

impl CostMeterPort for FileCostMeter

fn check_budget<'life0, 'life1, 'async_trait>( &'life0 self, session_id: &'life1 SessionId, ) -> Pin<Box<dyn Future<Output = Result<(), CostError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

fn record_llm_usage<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, session_id: &'life1 SessionId, _model: &'life2 str, usage: &'life3 TokenUsage, ) -> Pin<Box<dyn Future<Output = Result<(), CostError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait,

fn record_tool_result<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, session_id: &'life1 SessionId, _tool_result: &'life2 ToolResult, ) -> Pin<Box<dyn Future<Output = Result<(), CostError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

impl Debug for FileCostMeter

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

Formats the value using the given formatter.