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ADDED LCP engine

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This commit is contained in:
pavelkrolevets 2018-08-20 13:45:07 +08:00
parent ad0b74b4ea
commit 103d3f45f8
1 changed files with 171 additions and 54 deletions
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225
core/types/lcp_context.go
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@ -5,11 +5,11 @@ import (
"errors"
"fmt"
"github.com/meitu/go-ethereum/common"
"github.com/meitu/go-ethereum/crypto/sha3"
"github.com/meitu/go-ethereum/ethdb"
"github.com/meitu/go-ethereum/rlp"
"github.com/meitu/go-ethereum/trie"
"github.com/pavelkrolevets/go-ethereum/common"
"github.com/pavelkrolevets/go-ethereum/crypto/sha3"
"github.com/pavelkrolevets/go-ethereum/rlp"
"github.com/pavelkrolevets/go-ethereum/trie"
"encoding/binary"
)
type LCPContext struct {
@ -18,11 +18,11 @@ type LCPContext struct {
voteTrie *trie.Trie
candidateTrie *trie.Trie
mintCntTrie *trie.Trie
period uint64
maxValidators uint64
epochInterval uint64
periodBlock *trie.Trie
maxValidators *trie.Trie
epochInterval *trie.Trie
db ethdb.Database
db *trie.Database
}
var (
@ -31,29 +31,42 @@ var (
votePrefix = []byte("vote-")
candidatePrefix = []byte("candidate-")
mintCntPrefix = []byte("mintCnt-")
periodBlockPrefix = []byte("Period-")
maxValidatorsPrefix = []byte("MaxValidator-")
epochIntervalPrefix = []byte("EpochInterval-")
)
func NewEpochTrie(root common.Hash, db ethdb.Database) (*trie.Trie, error) {
func NewEpochTrie(root common.Hash, db *trie.Database) (*trie.Trie, error) {
return trie.NewTrieWithPrefix(root, epochPrefix, db)
}
func NewDelegateTrie(root common.Hash, db ethdb.Database) (*trie.Trie, error) {
func NewDelegateTrie(root common.Hash, db *trie.Database) (*trie.Trie, error) {
return trie.NewTrieWithPrefix(root, delegatePrefix, db)
}
func NewVoteTrie(root common.Hash, db ethdb.Database) (*trie.Trie, error) {
func NewVoteTrie(root common.Hash, db *trie.Database) (*trie.Trie, error) {
return trie.NewTrieWithPrefix(root, votePrefix, db)
}
func NewCandidateTrie(root common.Hash, db ethdb.Database) (*trie.Trie, error) {
func NewCandidateTrie(root common.Hash, db *trie.Database) (*trie.Trie, error) {
return trie.NewTrieWithPrefix(root, candidatePrefix, db)
}
func NewMintCntTrie(root common.Hash, db ethdb.Database) (*trie.Trie, error) {
func NewMintCntTrie(root common.Hash, db *trie.Database) (*trie.Trie, error) {
return trie.NewTrieWithPrefix(root, mintCntPrefix, db)
}
func NewLCPContext(db ethdb.Database) (*LCPContext, error) {
func NewPeriodBlockTrie(root common.Hash, db *trie.Database) (*trie.Trie, error) {
return trie.NewTrieWithPrefix(root, periodBlockPrefix, db)
}
func NewMaxValidatorsTrie(root common.Hash, db *trie.Database) (*trie.Trie, error) {
return trie.NewTrieWithPrefix(root, maxValidatorsPrefix, db)
}
func NewEpochIntervalTrie(root common.Hash, db *trie.Database) (*trie.Trie, error) {
return trie.NewTrieWithPrefix(root, epochIntervalPrefix, db)
}
func NewLCPContext(db *trie.Database) (*LCPContext, error) {
epochTrie, err := NewEpochTrie(common.Hash{}, db)
if err != nil {
return nil, err
@ -75,17 +88,32 @@ func NewLCPContext(db ethdb.Database) (*LCPContext, error) {
return nil, err
}
periodTrie, err := NewPeriodBlockTrie(common.Hash{}, db)
if err != nil {
return nil, err
}
maxValidatorTrie, err := NewMaxValidatorsTrie(common.Hash{}, db)
if err != nil {
return nil, err
}
epochIntervalTrie, err := NewEpochIntervalTrie(common.Hash{}, db)
if err != nil {
return nil, err
}
return &LCPContext{
epochTrie: epochTrie,
delegateTrie: delegateTrie,
voteTrie: voteTrie,
candidateTrie: candidateTrie,
mintCntTrie: mintCntTrie,
periodBlock: periodTrie,
maxValidators: maxValidatorTrie,
epochInterval: epochIntervalTrie,
db: db,
}, nil
}
func NewLCPContextFromProto(db ethdb.Database, ctxProto *LCPContextProto) (*LCPContext, error) {
func NewLCPContextFromProto(db *trie.Database, ctxProto *LCPContextProto) (*LCPContext, error) {
epochTrie, err := NewEpochTrie(ctxProto.EpochHash, db)
if err != nil {
return nil, err
@ -106,12 +134,27 @@ func NewLCPContextFromProto(db ethdb.Database, ctxProto *LCPContextProto) (*LCPC
if err != nil {
return nil, err
}
periodTrie, err := NewPeriodBlockTrie(common.Hash{}, db)
if err != nil {
return nil, err
}
maxValidatorTrie, err := NewMaxValidatorsTrie(common.Hash{}, db)
if err != nil {
return nil, err
}
epochIntervalTrie, err := NewEpochIntervalTrie(common.Hash{}, db)
if err != nil {
return nil, err
}
return &LCPContext{
epochTrie: epochTrie,
delegateTrie: delegateTrie,
voteTrie: voteTrie,
candidateTrie: candidateTrie,
mintCntTrie: mintCntTrie,
periodBlock: periodTrie,
maxValidators: maxValidatorTrie,
epochInterval: epochIntervalTrie,
db: db,
}, nil
}
@ -122,12 +165,18 @@ func (d *LCPContext) Copy() *LCPContext {
voteTrie := *d.voteTrie
candidateTrie := *d.candidateTrie
mintCntTrie := *d.mintCntTrie
periodTrie:= *d.periodBlock
maxValidatorTrie:= *d.maxValidators
epochIntervalTrie:= *d.epochInterval
return &LCPContext{
epochTrie: &epochTrie,
delegateTrie: &delegateTrie,
voteTrie: &voteTrie,
candidateTrie: &candidateTrie,
mintCntTrie: &mintCntTrie,
periodBlock: &periodTrie,
maxValidators: &maxValidatorTrie,
epochInterval: &epochIntervalTrie,
}
}
@ -138,7 +187,9 @@ func (d *LCPContext) Root() (h common.Hash) {
rlp.Encode(hw, d.candidateTrie.Hash())
rlp.Encode(hw, d.voteTrie.Hash())
rlp.Encode(hw, d.mintCntTrie.Hash())
rlp.Encode(hw, d.periodBlock.Hash())
rlp.Encode(hw, d.maxValidators.Hash())
rlp.Encode(hw, d.epochInterval.Hash())
hw.Sum(h[:0])
return h
}
@ -153,6 +204,9 @@ func (d *LCPContext) RevertToSnapShot(snapshot *LCPContext) {
d.candidateTrie = snapshot.candidateTrie
d.voteTrie = snapshot.voteTrie
d.mintCntTrie = snapshot.mintCntTrie
d.periodBlock = snapshot.periodBlock
d.maxValidators = snapshot.maxValidators
d.epochInterval = snapshot.epochInterval
}
func (d *LCPContext) FromProto(dcp *LCPContextProto) error {
@ -174,10 +228,21 @@ func (d *LCPContext) FromProto(dcp *LCPContextProto) error {
return err
}
d.mintCntTrie, err = NewMintCntTrie(dcp.MintCntHash, d.db)
d.period = dcp.period
d.epochInterval = dcp.epochInterval
d.maxValidators = dcp.maxValidators
if err != nil {
return err
}
d.periodBlock, err = NewPeriodBlockTrie(dcp.periodBlockHash, d.db)
if err != nil {
return err
}
d.maxValidators, err = NewPeriodBlockTrie(dcp.maxValidatorsHash, d.db)
if err != nil {
return err
}
d.epochInterval, err = NewPeriodBlockTrie(dcp.epochIntervalHash, d.db)
if err != nil {
return err
}
return err
}
@ -187,9 +252,9 @@ type LCPContextProto struct {
CandidateHash common.Hash `json:"candidateRoot" gencodec:"required"`
VoteHash common.Hash `json:"voteRoot" gencodec:"required"`
MintCntHash common.Hash `json:"mintCntRoot" gencodec:"required"`
period uint64
maxValidators uint64
epochInterval uint64
periodBlockHash common.Hash `json:"periodBlockRoot" gencodec:"required"`
maxValidatorsHash common.Hash `json:"maxValidatorRoot" gencodec:"required"`
epochIntervalHash common.Hash `json:"epochIntervalRoot" gencodec:"required"`
}
@ -201,9 +266,9 @@ func (d *LCPContext) ToProto() *LCPContextProto {
CandidateHash: d.candidateTrie.Hash(),
VoteHash: d.voteTrie.Hash(),
MintCntHash: d.mintCntTrie.Hash(),
period: d.period,
maxValidators: d.maxValidators,
epochInterval: d.epochInterval,
periodBlockHash: d.periodBlock.Hash(),
maxValidatorsHash: d.maxValidators.Hash(),
epochIntervalHash: d.epochInterval.Hash(),
}
}
@ -214,12 +279,9 @@ func (p *LCPContextProto) Root() (h common.Hash) {
rlp.Encode(hw, p.CandidateHash)
rlp.Encode(hw, p.VoteHash)
rlp.Encode(hw, p.MintCntHash)
rlp.Encode(hw, p.period)
rlp.Encode(hw, p.epochInterval)
rlp.Encode(hw, p.maxValidators)
rlp.Encode(hw, p.period)
rlp.Encode(hw, p.maxValidators)
rlp.Encode(hw, p.epochInterval)
rlp.Encode(hw, p.periodBlockHash)
rlp.Encode(hw, p.maxValidatorsHash)
rlp.Encode(hw, p.epochIntervalHash)
hw.Sum(h[:0])
return h
}
@ -318,25 +380,38 @@ func (d *LCPContext) UnDelegate(delegatorAddr, candidateAddr common.Address) err
}
return d.voteTrie.TryDelete(delegator)
}
//function to write tries to memory and then dump to a hard drive - new in 1.8 version
func (d *LCPContext) CommitTo(onleaf trie.LeafCallback) (*LCPContextProto, error) {
epochRoot, err := d.epochTrie.Commit(onleaf)
if err != nil {
return nil, err
}
delegateRoot, err := d.delegateTrie.Commit(onleaf)
if err != nil {
return nil, err
}
voteRoot, err := d.voteTrie.Commit(onleaf)
if err != nil {
return nil, err
}
candidateRoot, err := d.candidateTrie.Commit(onleaf)
if err != nil {
return nil, err
}
mintCntRoot, err := d.mintCntTrie.Commit(onleaf)
if err != nil {
return nil, err
}
func (d *LCPContext) CommitTo(dbw trie.DatabaseWriter) (*LCPContextProto, error) {
epochRoot, err := d.epochTrie.CommitTo(dbw)
blockPeriod, err := d.periodBlock.Commit(onleaf)
if err != nil {
return nil, err
}
delegateRoot, err := d.delegateTrie.CommitTo(dbw)
maxVal, err := d.maxValidators.Commit(onleaf)
if err != nil {
return nil, err
}
voteRoot, err := d.voteTrie.CommitTo(dbw)
if err != nil {
return nil, err
}
candidateRoot, err := d.candidateTrie.CommitTo(dbw)
if err != nil {
return nil, err
}
mintCntRoot, err := d.mintCntTrie.CommitTo(dbw)
epochInterv, err := d.epochInterval.Commit(onleaf)
if err != nil {
return nil, err
}
@ -346,6 +421,9 @@ func (d *LCPContext) CommitTo(dbw trie.DatabaseWriter) (*LCPContextProto, error)
VoteHash: voteRoot,
CandidateHash: candidateRoot,
MintCntHash: mintCntRoot,
periodBlockHash: blockPeriod,
maxValidatorsHash: maxVal,
epochIntervalHash: epochInterv,
}, nil
}
@ -354,13 +432,17 @@ func (d *LCPContext) DelegateTrie() *trie.Trie { return d.delegateTrie
func (d *LCPContext) VoteTrie() *trie.Trie { return d.voteTrie }
func (d *LCPContext) EpochTrie() *trie.Trie { return d.epochTrie }
func (d *LCPContext) MintCntTrie() *trie.Trie { return d.mintCntTrie }
func (d *LCPContext) DB() ethdb.Database { return d.db }
func (d *LCPContext) periodTrie() *trie.Trie { return d.periodBlock }
func (d *LCPContext) maxValidatorTrie() *trie.Trie { return d.maxValidators }
func (d *LCPContext) epochIntervalTrie() *trie.Trie { return d.epochInterval }
func (d *LCPContext) DB() *trie.Database { return d.db }
func (dc *LCPContext) SetEpoch(epoch *trie.Trie) { dc.epochTrie = epoch }
func (dc *LCPContext) SetDelegate(delegate *trie.Trie) { dc.delegateTrie = delegate }
func (dc *LCPContext) SetVote(vote *trie.Trie) { dc.voteTrie = vote }
func (dc *LCPContext) SetCandidate(candidate *trie.Trie) { dc.candidateTrie = candidate }
func (dc *LCPContext) SetMintCnt(mintCnt *trie.Trie) { dc.mintCntTrie = mintCnt }
func (dc *LCPContext) GetValidators() ([]common.Address, error) {
var validators []common.Address
key := []byte("validator")
@ -380,15 +462,50 @@ func (dc *LCPContext) SetValidators(validators []common.Address) error {
dc.epochTrie.Update(key, validatorsRLP)
return nil
}
func (dc *LCPContext) SetPeriod(period uint64) error {
dc.period = period
// Set and Get block creation speed
func (dc *LCPContext) SetPeriodBlock(period int64) error {
key:= []byte("BlockPeriod")
periodByte :=make([]byte, 8)
binary.LittleEndian.PutUint64(periodByte,uint64(period))
dc.epochTrie.Update(key, periodByte)
return nil
}
func (dc *LCPContext) GetPeriodBlock() (int64) {
key:= []byte("BlockPeriod")
periodRLP := dc.epochTrie.Get(key)
period := int64(binary.LittleEndian.Uint64(periodRLP))
return period
}
//Set and Get maximim validators
func (dc *LCPContext) SetMaxValidators(maxVal int64) error {
key:= []byte("MaxValidators")
maxValByte :=make([]byte, 8)
binary.LittleEndian.PutUint64(maxValByte,uint64(maxVal))
dc.epochTrie.Update(key, maxValByte)
return nil
}
func (dc *LCPContext) SetMaxValidators(maxVal uint64) error {
dc.maxValidators = maxVal
return nil
}
func (dc *LCPContext) SetEpochInterval(interval uint64) error {
dc.epochInterval = interval
func (dc *LCPContext) GetMaxValidators() (int64) {
key:= []byte("MaxValidators")
maxValRLP := dc.epochTrie.Get(key)
maxVal := int64(binary.LittleEndian.Uint64(maxValRLP))
return maxVal
}
//Set and Get epoch interval
func (dc *LCPContext) SetEpochInterval(epochInt int64) error {
key:= []byte("EpochInterval")
epochIntByte :=make([]byte, 8)
binary.LittleEndian.PutUint64(epochIntByte,uint64(epochInt))
dc.epochTrie.Update(key, epochIntByte)
return nil
}
func (dc *LCPContext) GetEpochInterval() (int64) {
key:= []byte("EpochInterval")
epochIntRLP := dc.epochTrie.Get(key)
period := int64(binary.LittleEndian.Uint64(epochIntRLP))
return period
}