trie_gc

Documentation

Index

• Constants
• type Chain
• type Collector
  • func NewCollector(chain Chain, ledgerGcRetain uint64) Collector
• type Marker
  • func NewMarker(chain Chain, retainSnapshotHeight uint64) *Marker
  • func (m *Marker) MarkAndClean(terminal <-chan struct{}) error
  • func (m *Marker) RetainSnapshotHeight() uint64

Constants

const (
	DBKP_CLEARED_HEIGHT  = byte(1)
	DBKP_MARKED_HEIGHT   = byte(2)
	DBKP_MARKED_HASHLIST = byte(3)
)

const (
	STATUS_STOPPED              = 1
	STATUS_STARTED              = 2
	STATUS_MARKING_AND_CLEANING = 3
)

Types

type Chain

type Chain interface {
	vm_context.Chain

	NewGenesisSnapshotBlock() ledger.SnapshotBlock
	NewSecondSnapshotBlock() ledger.SnapshotBlock
	NewGenesisMintageBlock() (ledger.AccountBlock, vmctxt_interface.VmDatabase)
	NewGenesisMintageSendBlock() (ledger.AccountBlock, vmctxt_interface.VmDatabase)
	NewGenesisConsensusGroupBlock() (ledger.AccountBlock, vmctxt_interface.VmDatabase)
	NewGenesisRegisterBlock() (ledger.AccountBlock, vmctxt_interface.VmDatabase)

	AccountType(address *types.Address) (uint64, error)
	GetLatestBlockEventId() (uint64, error)
	GetEvent(eventId uint64) (byte, []types.Hash, error)
	ChainDb() *chain_db.ChainDb

	TrieDb() *leveldb.DB
	CleanTrieNodePool()
	GenStateTrieFromDb(prevStateHash types.Hash, snapshotContent ledger.SnapshotContent) (*trie.Trie, error)
	ShallowCheckStateTrie(stateHash *types.Hash) (bool, error)

	IsGenesisSnapshotBlock(block *ledger.SnapshotBlock) bool
	IsGenesisAccountBlock(block *ledger.AccountBlock) bool

	StopSaveTrie()
	StartSaveTrie()
}

type Collector

type Collector interface {
	Start()
	Stop()
	Status() uint8
	Check() (bool, error)
	Recover() (returnErr error)

	RetainMinHeight() uint64
}

func NewCollector

func NewCollector(chain Chain, ledgerGcRetain uint64) Collector

type Marker

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

func NewMarker

func NewMarker(chain Chain, retainSnapshotHeight uint64) *Marker

func (*Marker) MarkAndClean

func (m *Marker) MarkAndClean(terminal <-chan struct{}) error

func (*Marker) RetainSnapshotHeight

func (m *Marker) RetainSnapshotHeight() uint64