Struct Cache

ch13/cache.go:22–27

Cache represents a thread-safe in-memory cache with TTL and LRU eviction policies

// Cache represents a thread-safe in-memory cache with TTL and LRU eviction policies
type Cache struct {
	mu       sync.RWMutex
	items    map[string]*list.Element // Map of keys to list elements
	eviction *list.List               // Doubly-linked list for eviction
	capacity int                      // Maximum number of items in the cache
}

// NewCache initializes and returns a new Cache with the given capacity
func NewCache(capacity int) *Cache {