fscache

type CacheKey = pb.CacheKey

type CapacityFunc func() int64

type Data interface {
	Bytes() []byte
	Slice(length int) Data
	Retain()
	Release()
}

type DataCache interface {
	EnsureNBytes(ctx context.Context, want int)
	Capacity() int64
	Used() int64
	Available() int64
	Get(context.Context, CacheKey) (Data, bool)
	Set(context.Context, CacheKey, Data) error
	DeletePaths(context.Context, []string)
	Flush(ctx context.Context)
	Evict(ctx context.Context, done chan int64)
	EvictToTargetWithWait(ctx context.Context, target int64) int64
}