Struct EventStore 

pub struct EventStore { /* private fields */ }

Store for capturing and querying tracer events

EventStore provides thread-safe storage for tracer events with support for:

• Callbacks triggered on each stored event
• Filtering by event type
• Filtering by time range
• Custom filter predicates
• Query for last N events

Implementations

impl EventStore

pub fn new(on_store_callback: Option<EventCallback>) -> Self

Create a new event store

Arguments

• on_store_callback - Optional callback function called whenever an event is stored

pub fn store(&self, event: Box<dyn TracerEvent>)

Store an event in the event store

If a callback is configured, it will be called with the stored event.

Arguments

• event - The event to store

pub fn count_events( &self, start_time: Option<f64>, end_time: Option<f64>, filter_func: Option<&dyn EventFilterFn>, ) -> usize

Count events matching filters

Arguments

• start_time - Include events with timestamp >= start_time
• end_time - Include events with timestamp <= end_time
• filter_func - Custom filter function to apply to events

Returns

Number of events matching the filter criteria

pub fn get_event_summaries( &self, start_time: Option<f64>, end_time: Option<f64>, filter_func: Option<&dyn EventFilterFn>, ) -> Vec<String>

Get summaries of events matching filters

Returns printable summaries instead of cloning events

Arguments

• start_time - Include events with timestamp >= start_time
• end_time - Include events with timestamp <= end_time
• filter_func - Custom filter function to apply to events

Returns

Vector of event summaries matching the filter criteria

pub fn get_last_n_summaries( &self, n: usize, filter_func: Option<&dyn EventFilterFn>, ) -> Vec<String>

Get the last N event summaries, optionally filtered

Arguments

• n - Number of events to return
• filter_func - Optional custom filter function

Returns

Vector of the last N event summaries matching the filter criteria

pub fn clear(&self)

Clear all events from the store

pub fn len(&self) -> usize

Get the total number of events in the store

pub fn is_empty(&self) -> bool

Check if the event store is empty

Trait Implementations

impl Default for EventStore

fn default() -> Self

Returns the “default value” for a type.