Module expiration 

Automatic content expiration policies.

This module provides automatic expiration management for cached content, allowing content to be automatically removed based on time-to-live (TTL), access patterns, or custom policies.

Features

• TTL-based expiration
• Access-based expiration (idle timeout)
• Size-based expiration quotas
• Custom expiration policies
• Batch expiration processing
• Expiration event notifications

Example

use chie_core::expiration::{ExpirationManager, ExpirationPolicy, ContentEntry};
use std::time::Duration;

// Create an expiration manager with TTL policy
let policy = ExpirationPolicy::ttl(Duration::from_secs(3600)); // 1 hour TTL
let mut manager = ExpirationManager::new(policy);

// Register content
manager.register("content:123".to_string(), 1024);

// Check for expired content
let expired = manager.get_expired();
println!("Expired content count: {}", expired.len());

Structs

ContentEntry

Content entry with expiration metadata

ExpirationManager

Manages automatic content expiration

ExpirationStats

Statistics for expiration operations

Enums

ExpirationPolicy

Expiration policy