vecmt

Documentation

Index

• type CreationTimer
• type HighestBefore
  • func NewHighestBefore(size idx.Validator) *HighestBefore
  • func (self *HighestBefore) CollectFrom(_other vecengine.HighestBeforeI, num idx.Validator)
  • func (self *HighestBefore) GatherFrom(to idx.Validator, _other vecengine.HighestBeforeI, from []idx.Validator)
  • func (b *HighestBefore) InitWithEvent(i idx.Validator, e dag.Event)
  • func (b *HighestBefore) IsEmpty(i idx.Validator) bool
  • func (b *HighestBefore) IsForkDetected(i idx.Validator) bool
  • func (b *HighestBefore) MinSeq(i idx.Validator) idx.Event
  • func (b *HighestBefore) Seq(i idx.Validator) idx.Event
  • func (b *HighestBefore) SetForkDetected(i idx.Validator)
• type HighestBeforeTime
  • func NewHighestBeforeTime(size idx.Validator) *HighestBeforeTime
  • func (b HighestBeforeTime) Get(i idx.Validator) inter.Timestamp
  • func (b *HighestBeforeTime) Set(i idx.Validator, time inter.Timestamp)
  • func (b HighestBeforeTime) Size() idx.Validator
• type Index
  • func NewIndex(crit func(error), config IndexConfig) *Index
  • func NewIndexWithBase(crit func(error), config IndexConfig, base *vecfc.Index) *Index
  • func (vi *Index) GetEngineCallbacks() vecengine.Callbacks
  • func (vi *Index) GetHighestBefore(id hash.Event) *HighestBefore
  • func (vi *Index) GetHighestBeforeTime(id hash.Event) *HighestBeforeTime
  • func (vi *Index) GetMergedHighestBefore(id hash.Event) *HighestBefore
  • func (vi *Index) MedianTime(id hash.Event, defaultTime inter.Timestamp) inter.Timestamp
  • func (vi *Index) NoCheaters(selfParent *hash.Event, options hash.Events) hash.Events
  • func (vi *Index) Reset(validators *pos.Validators, db kvdb.Store, getEvent func(hash.Event) dag.Event)
  • func (vi *Index) SetHighestBefore(id hash.Event, vec *HighestBefore)
  • func (vi *Index) SetHighestBeforeTime(id hash.Event, vec *HighestBeforeTime)
• type IndexCacheConfig
• type IndexConfig
  • func DefaultConfig() IndexConfig
  • func LiteConfig() IndexConfig

Types

type CreationTimer

type CreationTimer interface {
	CreationTime() inter.Timestamp
}

type HighestBefore

type HighestBefore struct {
	VSeq  *vecfc.HighestBeforeSeq
	VTime *HighestBeforeTime
}

func NewHighestBefore

func NewHighestBefore(size idx.Validator) *HighestBefore

NewHighestBefore creates new HighestBefore vector.

func (*HighestBefore) CollectFrom

func (self *HighestBefore) CollectFrom(_other vecengine.HighestBeforeI, num idx.Validator)

func (*HighestBefore) GatherFrom

func (self *HighestBefore) GatherFrom(to idx.Validator, _other vecengine.HighestBeforeI, from []idx.Validator)

func (*HighestBefore) InitWithEvent

func (b *HighestBefore) InitWithEvent(i idx.Validator, e dag.Event)

func (*HighestBefore) IsEmpty

func (b *HighestBefore) IsEmpty(i idx.Validator) bool

func (*HighestBefore) IsForkDetected

func (b *HighestBefore) IsForkDetected(i idx.Validator) bool

func (*HighestBefore) MinSeq

func (b *HighestBefore) MinSeq(i idx.Validator) idx.Event

func (*HighestBefore) Seq

func (b *HighestBefore) Seq(i idx.Validator) idx.Event

func (*HighestBefore) SetForkDetected

func (b *HighestBefore) SetForkDetected(i idx.Validator)

type HighestBeforeTime

type HighestBeforeTime []byte

HighestBeforeTime is a vector of highest events (their CreationTime) which are observed by source event

func NewHighestBeforeTime

func NewHighestBeforeTime(size idx.Validator) *HighestBeforeTime

NewHighestBeforeTime creates new HighestBeforeTime vector.

func (HighestBeforeTime) Get

func (b HighestBeforeTime) Get(i idx.Validator) inter.Timestamp

Get i's position in the byte-encoded vector clock

func (*HighestBeforeTime) Set

func (b *HighestBeforeTime) Set(i idx.Validator, time inter.Timestamp)

Set i's position in the byte-encoded vector clock

func (HighestBeforeTime) Size

func (b HighestBeforeTime) Size() idx.Validator

Size of the vector clock

type Index

type Index struct {
	*vecfc.Index
	Base *vecfc.Index
	// contains filtered or unexported fields
}

Index is a data to detect forkless-cause condition, calculate median timestamp, detect forks.

func NewIndex

func NewIndex(crit func(error), config IndexConfig) *Index

NewIndex creates Index instance.

func NewIndexWithBase

func NewIndexWithBase(crit func(error), config IndexConfig, base *vecfc.Index) *Index

func (*Index) GetEngineCallbacks

func (vi *Index) GetEngineCallbacks() vecengine.Callbacks

func (*Index) GetHighestBefore

func (vi *Index) GetHighestBefore(id hash.Event) *HighestBefore

GetHighestBefore reads the vector from DB

func (*Index) GetHighestBeforeTime

func (vi *Index) GetHighestBeforeTime(id hash.Event) *HighestBeforeTime

GetHighestBeforeTime reads the vector from DB

func (*Index) GetMergedHighestBefore

func (vi *Index) GetMergedHighestBefore(id hash.Event) *HighestBefore

GetMergedHighestBefore returns HighestBefore vector clock without branches, where branches are merged into one

func (*Index) MedianTime

func (vi *Index) MedianTime(id hash.Event, defaultTime inter.Timestamp) inter.Timestamp

MedianTime calculates weighted median of claimed time within highest observed events.

func (*Index) NoCheaters

func (vi *Index) NoCheaters(selfParent *hash.Event, options hash.Events) hash.Events

NoCheaters excludes events which are observed by selfParents as cheaters. Called by emitter to exclude cheater's events from potential parents list.

func (*Index) Reset

func (vi *Index) Reset(validators *pos.Validators, db kvdb.Store, getEvent func(hash.Event) dag.Event)

Reset resets buffers.

func (*Index) SetHighestBefore

func (vi *Index) SetHighestBefore(id hash.Event, vec *HighestBefore)

SetHighestBefore stores the vectors into DB

func (*Index) SetHighestBeforeTime

func (vi *Index) SetHighestBeforeTime(id hash.Event, vec *HighestBeforeTime)

SetHighestBeforeTime stores the vector into DB

type IndexCacheConfig

type IndexCacheConfig struct {
	HighestBeforeTimeSize uint
}

IndexCacheConfig - config for cache sizes of Engine

type IndexConfig

type IndexConfig struct {
	Fc     vecfc.IndexConfig
	Caches IndexCacheConfig
}

IndexConfig - Engine config (cache sizes)

func DefaultConfig

func DefaultConfig() IndexConfig

DefaultConfig returns default index config

func LiteConfig

func LiteConfig() IndexConfig

LiteConfig returns default index config for tests