db

Documentation

Index

• Constants
• func BlockhashKey(height uint32) []byte
• func CurrentBlockHashKey() []byte
• func CurrentStateTrie() []byte
• func DonationKey(height uint32) []byte
• func HeaderKey(blockHash common.Uint256) []byte
• func PrepaidKey(programHash common.Uint160) []byte
• func TransactionKey(txHash common.Uint256) []byte
• func TrieCompactHeightKey() []byte
• func TrieNodeKey(key []byte) []byte
• func TriePrunedHeightKey() []byte
• func TrieRefCountHeightKey() []byte
• func TrieRefCountKey(key []byte) []byte
• func VersionKey() []byte
• type DataEntryPrefix
• type IIterator
• type IStore
• type Iterator
  • func (it *Iterator) First() bool
  • func (it *Iterator) Key() []byte
  • func (it *Iterator) Last() bool
  • func (it *Iterator) Next() bool
  • func (it *Iterator) Prev() bool
  • func (it *Iterator) Release()
  • func (it *Iterator) Seek(key []byte) bool
  • func (it *Iterator) Value() []byte
• type LevelDBStore
  • func NewLevelDBStore(file string) (*LevelDBStore, error)
  • func (self *LevelDBStore) BatchCommit() error
  • func (self *LevelDBStore) BatchDelete(key []byte) error
  • func (self *LevelDBStore) BatchPut(key []byte, value []byte) error
  • func (self *LevelDBStore) Close() error
  • func (self *LevelDBStore) Compact() error
  • func (self *LevelDBStore) Delete(key []byte) error
  • func (self *LevelDBStore) Get(key []byte) ([]byte, error)
  • func (self *LevelDBStore) Has(key []byte) (bool, error)
  • func (self *LevelDBStore) NewBatch() error
  • func (self *LevelDBStore) NewIterator(prefix []byte) IIterator
  • func (self *LevelDBStore) Put(key []byte, value []byte) error

Constants

const BITSPERKEY = 10

used to compute the size of bloom filter bits array . too small will lead to high false positive rate.

Functions

func BlockhashKey

func BlockhashKey(height uint32) []byte

func CurrentBlockHashKey

func CurrentBlockHashKey() []byte

func CurrentStateTrie

func CurrentStateTrie() []byte

func DonationKey

func DonationKey(height uint32) []byte

func HeaderKey

func HeaderKey(blockHash common.Uint256) []byte

func PrepaidKey

func PrepaidKey(programHash common.Uint160) []byte

func TransactionKey

func TransactionKey(txHash common.Uint256) []byte

func TrieCompactHeightKey

func TrieCompactHeightKey() []byte

func TrieNodeKey

func TrieNodeKey(key []byte) []byte

func TriePrunedHeightKey

func TriePrunedHeightKey() []byte

func TrieRefCountHeightKey

func TrieRefCountHeightKey() []byte

func TrieRefCountKey

func TrieRefCountKey(key []byte) []byte

func VersionKey

func VersionKey() []byte

Types

type DataEntryPrefix

type DataEntryPrefix byte

const (
	// DATA
	DATA_BlockHash   DataEntryPrefix = 0x00
	DATA_Header      DataEntryPrefix = 0x01
	DATA_Transaction DataEntryPrefix = 0x02

	ST_Prepaid   DataEntryPrefix = 0xc7
	ST_StateTrie DataEntryPrefix = 0xc8

	//SYSTEM
	SYS_CurrentBlock DataEntryPrefix = 0x40
	SYS_Donations    DataEntryPrefix = 0x42

	//CONFIG
	CFG_Version DataEntryPrefix = 0xf0

	//TRIE
	TRIE_Node           DataEntryPrefix = 0xa0
	TRIE_RefCount       DataEntryPrefix = 0xa1
	TRIE_RefCountHeight DataEntryPrefix = 0xa2
	TRIE_PrunedHeight   DataEntryPrefix = 0xa3
	TRIE_CompactHeight  DataEntryPrefix = 0xa4
)

type IIterator

type IIterator interface {
	Next() bool
	Prev() bool
	First() bool
	Last() bool
	Seek(key []byte) bool
	Key() []byte
	Value() []byte
	Release()
}

type IStore

type IStore interface {
	Put(key []byte, value []byte) error
	Get(key []byte) ([]byte, error)
	Has(key []byte) (bool, error)
	Delete(key []byte) error
	NewBatch() error
	BatchPut(key []byte, value []byte) error
	BatchDelete(key []byte) error
	BatchCommit() error
	Compact() error
	Close() error
	NewIterator(prefix []byte) IIterator
}

type Iterator

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

func (*Iterator) First

func (it *Iterator) First() bool

func (*Iterator) Key

func (it *Iterator) Key() []byte

func (*Iterator) Last

func (it *Iterator) Last() bool

func (*Iterator) Next

func (it *Iterator) Next() bool

func (*Iterator) Prev

func (it *Iterator) Prev() bool

func (*Iterator) Release

func (it *Iterator) Release()

func (*Iterator) Seek

func (it *Iterator) Seek(key []byte) bool

func (*Iterator) Value

func (it *Iterator) Value() []byte

type LevelDBStore

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

func NewLevelDBStore

func NewLevelDBStore(file string) (*LevelDBStore, error)

func (*LevelDBStore) BatchCommit

func (self *LevelDBStore) BatchCommit() error

func (*LevelDBStore) BatchDelete

func (self *LevelDBStore) BatchDelete(key []byte) error

func (*LevelDBStore) BatchPut

func (self *LevelDBStore) BatchPut(key []byte, value []byte) error

func (*LevelDBStore) Close

func (self *LevelDBStore) Close() error

func (*LevelDBStore) Compact

func (self *LevelDBStore) Compact() error

func (*LevelDBStore) Delete

func (self *LevelDBStore) Delete(key []byte) error

func (*LevelDBStore) Get

func (self *LevelDBStore) Get(key []byte) ([]byte, error)

func (*LevelDBStore) Has

func (self *LevelDBStore) Has(key []byte) (bool, error)

func (*LevelDBStore) NewBatch

func (self *LevelDBStore) NewBatch() error

func (*LevelDBStore) NewIterator

func (self *LevelDBStore) NewIterator(prefix []byte) IIterator

func (*LevelDBStore) Put

func (self *LevelDBStore) Put(key []byte, value []byte) error