state

package
v0.0.7 Latest Latest
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 Go to latest Published: Apr 23, 2019 License: GPL-3.0 Imports: 14 Imported by: 14

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var MaxTrieCacheGen = uint16(120)

Functions

func TransToSpecBlock 

func TransToSpecBlock(db fdb.Database, cache Database, from common.Hash, to common.Hash) error

TransToSpecBlock change block state (from->to)

Types

type Database 

type Database interface {
	GetDB() fdb.Database
	OpenTrie(root common.Hash) (Trie, error)
	TrieDB() *trie.Database
	Lock()
	UnLock()
}

Database cache db exported

func NewDatabase 

func NewDatabase(db fdb.Database) Database

NewDatabase creates a backing store for state.

type SnapshotSt added in v0.0.7 

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

func NewSnapshot added in v0.0.7 

func NewSnapshot(db fdb.Database, sptime uint64) *SnapshotSt

func (*SnapshotSt) SnapShotblk added in v0.0.7 

func (sn *SnapshotSt) SnapShotblk()

func (*SnapshotSt) Start added in v0.0.7 

func (sn *SnapshotSt) Start()

func (*SnapshotSt) Stop added in v0.0.7 

func (sn *SnapshotSt) Stop()

type StateDB 

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

StateDB store block operate info

func New 

func New(root common.Hash, db Database) (*StateDB, error)

New func generate a statedb object parentHash: block's parent hash, db: cachedb

func TraceNew 

func TraceNew(blockHash common.Hash, cache Database) (*StateDB, error)

TraceNew get state of special block hash for trace blockHash: the hash of block

func (*StateDB) AddLog 

func (s *StateDB) AddLog(log *types.Log)

save transaction log

func (*StateDB) AddPreimage 

func (s *StateDB) AddPreimage(hash common.Hash, preimage []byte)

hash is preimageHash

func (*StateDB) AddRefund 

func (s *StateDB) AddRefund(gas uint64)

save unuse gas

func (*StateDB) Commit 

func (s *StateDB) Commit(batch fdb.Batch, blockHash common.Hash, blockNum uint64) (common.Hash, error)

Commit the block state to db. after success please call commitcache batch: batch to db blockHash: the hash of commit block

func (*StateDB) Copy 

func (s *StateDB) Copy() *StateDB

func (*StateDB) Database 

func (s *StateDB) Database() Database

func (*StateDB) Delete 

func (s *StateDB) Delete(account string, key string)

Delete account's data from db

func (*StateDB) Error 

func (s *StateDB) Error() error

func (*StateDB) Finalise 

func (s *StateDB) Finalise()

func (*StateDB) Get 

func (s *StateDB) Get(account string, key string) ([]byte, error)

Get account's data from db

func (*StateDB) GetLogs 

func (s *StateDB) GetLogs(hash common.Hash) []*types.Log

get a strip of transaction log

func (*StateDB) GetRefund 

func (s *StateDB) GetRefund() uint64

func (*StateDB) GetSnapshot 

func (s *StateDB) GetSnapshot(account string, key string, time uint64) ([]byte, error)

func (*StateDB) GetSnapshotLast 

func (s *StateDB) GetSnapshotLast() (uint64, error)

func (*StateDB) GetSnapshotPrev 

func (s *StateDB) GetSnapshotPrev(time uint64) (uint64, error)

func (*StateDB) GetState 

func (s *StateDB) GetState(account string, key common.Hash) common.Hash

func (*StateDB) IntermediateRoot 

func (s *StateDB) IntermediateRoot() common.Hash

func (*StateDB) Logs 

func (s *StateDB) Logs() []*types.Log

get all transaction log

func (*StateDB) LookupAccountInfo added in v0.0.7 

func (s *StateDB) LookupAccountInfo() ([]types.AccountInfo, bool)

func (*StateDB) Preimages 

func (s *StateDB) Preimages() map[common.Hash][]byte

func (*StateDB) Prepare 

func (s *StateDB) Prepare(thash, bhash common.Hash, ti int)

execute transaction called

func (*StateDB) Put 

func (s *StateDB) Put(account string, key string, value []byte)

Put account's data to db

func (*StateDB) ReceiptRoot 

func (s *StateDB) ReceiptRoot() common.Hash

ReceiptRoot compute one tx‘ receipt hash

func (*StateDB) Reset 

func (s *StateDB) Reset(root common.Hash) error

func (*StateDB) RevertToSnapshot 

func (s *StateDB) RevertToSnapshot(revid int)

func (*StateDB) RpcGet 

func (s *StateDB) RpcGet(account string, key string) ([]byte, error)

RpcGet provide get value of the key to rpc when called please RLock cachedb

func (*StateDB) RpcGetState 

func (s *StateDB) RpcGetState(account string, key common.Hash) common.Hash

RpcGetState provide get value of the key to rpc when called please RLock cachedb

func (*StateDB) SetState 

func (s *StateDB) SetState(account string, key, value common.Hash)

set contract variable key value

func (*StateDB) Snapshot 

func (s *StateDB) Snapshot() int

func (*StateDB) StartGetAccountInfo added in v0.0.7 

func (s *StateDB) StartGetAccountInfo(time uint64) error

func (*StateDB) StopGetAccountInfo added in v0.0.7 

func (s *StateDB) StopGetAccountInfo() error

type Trie 

type Trie interface {
	TryGet(key []byte) ([]byte, error)
	TryUpdate(key, value []byte) error
	TryDelete(key []byte) error
	Commit(onleaf trie.LeafCallback) (common.Hash, error)
	Hash() common.Hash
	NodeIterator(startKey []byte) trie.NodeIterator
	GetKey([]byte) []byte // TODO(fjl): remove this when SecureTrie is removed
	Prove(key []byte, fromLevel uint, proofDb fdb.Putter) error
}

Source Files

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Directories

Path Synopsis
package mtp implements Merkle Patricia Tries.
 package mtp implements Merkle Patricia Tries.

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