bench

type ChangesetGenerator struct {
	StoreKey         string
	Seed             int64
	KeyMean          int
	KeyStdDev        int
	ValueMean        int
	ValueStdDev      int
	InitialSize      int
	FinalSize        int
	Versions         int64
	ChangePerVersion int
	DeleteFraction   float64
}

type ChangesetIterator interface {
	Next() error
	Valid() bool
	Nodes() api.NodeIterator
	Version() int64
}

type ChangesetIterators struct {
	NodeItr *multiNodeIterator
	// contains filtered or unexported fields
}

type ChangesetItr struct {
	NodeItr *generatingNodeItr
	// contains filtered or unexported fields
}

type MultiTree interface {
	GetTree(key string) (Tree, error)
	SaveVersions() ([]byte, int64, error)
	V2Hash() []byte
}

type NaiveMultiTree struct {
	Trees map[string]Tree
}

type Tree interface {
	Set(key, value []byte) (bool, error)
	Get(key []byte) ([]byte, error)
	Remove(key []byte) ([]byte, bool, error)
	SaveVersion() ([]byte, int64, error)
	Size() int64
	Height() int8
	Hash() ([]byte, error)
}

type TreeContext struct {
	context.Context

	Log               zerolog.Logger
	IndexDir          string
	LogDir            string
	Iterator          ChangesetIterator
	VersionLimit      int64
	MetricLeafCount   prometheus.Counter
	MetricTreeSize    prometheus.Gauge
	MetricsTreeHeight prometheus.Gauge
	HashLog           *os.File

	// hack to use a single tree instead of per storekey
	OneTree string
}