TrueCloudLab/neo-go
8
0
Fork 0
mirror of https://github.com/nspcc-dev/neo-go.git synced 2024-11-23 03:38:35 +00:00
Code Issues Projects Releases Packages Wiki Activity

core: refactor voting processing, fix pending tx subtractions

Browse source 
Deduplicate code and add missing token check for subtractions that are being
done in GetValidators() for pending transactions.
This commit is contained in:
Roman Khimov 2020-02-12 21:12:39 +03:00
parent c8a248596e
commit 26af9200b0
1 changed files with 15 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

40
pkg/core/blockchain.go
View file

@ -436,7 +436,7 @@ func (bc *Blockchain) storeBlock(block *block.Block) error {
if err = cache.PutSpentCoinState(input.PrevHash, spentCoin); err != nil {
return err
}
if err = processTXWithValidatorsSubtract(account, cache, prevTXOutput.Amount); err != nil {
if err = processTXWithValidatorsSubtract(&prevTXOutput, account, cache); err != nil {
return err
}
}
@ -638,36 +638,26 @@ func processOutputs(tx *transaction.Transaction, dao *cachedDao) error {
func processTXWithValidatorsAdd(output *transaction.Output, account *state.Account, dao *cachedDao) error {
if output.AssetID.Equals(governingTokenTX().Hash()) && len(account.Votes) > 0 {
for _, vote := range account.Votes {
validatorState, err := dao.GetValidatorStateOrNew(vote)
if err != nil {
return err
}
validatorState.Votes += output.Amount
if err = dao.PutValidatorState(validatorState); err != nil {
return err
}
}
vc, err := dao.GetValidatorsCount()
if err != nil {
return err
}
vc[len(account.Votes)-1] += output.Amount
err = dao.PutValidatorsCount(vc)
if err != nil {
return err
}
return modAccountVotes(account, dao, output.Amount)
}
return nil
}
func processTXWithValidatorsSubtract(account *state.Account, dao *cachedDao, toSubtract util.Fixed8) error {
func processTXWithValidatorsSubtract(output *transaction.Output, account *state.Account, dao *cachedDao) error {
if output.AssetID.Equals(governingTokenTX().Hash()) && len(account.Votes) > 0 {
return modAccountVotes(account, dao, -output.Amount)
}
return nil
}
// modAccountVotes adds given value to given account voted validators.
func modAccountVotes(account *state.Account, dao *cachedDao, value util.Fixed8) error {
for _, vote := range account.Votes {
validator, err := dao.GetValidatorStateOrNew(vote)
if err != nil {
return err
}
validator.Votes -= toSubtract
validator.Votes += value
if validator.UnregisteredAndHasNoVotes() {
if err := dao.DeleteValidatorState(validator); err != nil {
return err
@ -683,7 +673,7 @@ func processTXWithValidatorsSubtract(account *state.Account, dao *cachedDao, toS
if err != nil {
return err
}
vc[len(account.Votes)-1] -= toSubtract
vc[len(account.Votes)-1] += value
err = dao.PutValidatorsCount(vc)
if err != nil {
return err
@ -724,7 +714,7 @@ func processAccountStateDescriptor(descriptor *transaction.StateDescriptor, dao
if descriptor.Field == "Votes" {
balance := account.GetBalanceValues()[governingTokenTX().Hash()]
if err = processTXWithValidatorsSubtract(account, dao, balance); err != nil {
if err = modAccountVotes(account, dao, -balance); err != nil {
return err
}
@ -1356,7 +1346,7 @@ func (bc *Blockchain) GetValidators(txes ...*transaction.Transaction) ([]*keys.P
}
// process account state votes: if there are any -> validators will be updated.
if err = processTXWithValidatorsSubtract(accountState, cache, prevOutput.Amount); err != nil {
if err = processTXWithValidatorsSubtract(&prevOutput, accountState, cache); err != nil {
return nil, err
}
delete(accountState.Balances, prevOutput.AssetID)