cache

type Cache interface {
	Get(ctx context.Context, key string, dest interface{}) error
	Set(ctx context.Context, key string, value interface{}, ttl time.Duration) error
	Delete(ctx context.Context, key string) error
	Exists(ctx context.Context, key string) bool
	Clear(ctx context.Context) error
	Stats() CacheStats
	Close() error
}

type CacheStats struct {
	Hits        int64   `json:"hits"`
	Misses      int64   `json:"misses"`
	Sets        int64   `json:"sets"`
	Deletes     int64   `json:"deletes"`
	Errors      int64   `json:"errors"`
	HitRatio    float64 `json:"hit_ratio"`
	TotalKeys   int     `json:"total_keys"`
	MemoryUsage int64   `json:"memory_usage_bytes"`
}

type MemoryCache struct {
	// contains filtered or unexported fields
}

type MemoryCacheConfig struct {
	MaxSize         int64         // 最大内存使用量（字节）
	CleanupInterval time.Duration // 清理间隔
}