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basePostProcess.go
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/
basePostProcess.go
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package postprocess
import (
"sync"
"github.com/ElrondNetwork/elrond-go-logger"
"github.com/ElrondNetwork/elrond-go/core"
"github.com/ElrondNetwork/elrond-go/core/check"
"github.com/ElrondNetwork/elrond-go/data"
"github.com/ElrondNetwork/elrond-go/data/block"
"github.com/ElrondNetwork/elrond-go/dataRetriever"
"github.com/ElrondNetwork/elrond-go/hashing"
"github.com/ElrondNetwork/elrond-go/marshal"
"github.com/ElrondNetwork/elrond-go/process"
"github.com/ElrondNetwork/elrond-go/sharding"
)
var _ process.DataMarshalizer = (*basePostProcessor)(nil)
type txShardInfo struct {
senderShardID uint32
receiverShardID uint32
}
type txInfo struct {
tx data.TransactionHandler
*txShardInfo
}
var log = logger.GetOrCreate("process/block/postprocess")
type basePostProcessor struct {
hasher hashing.Hasher
marshalizer marshal.Marshalizer
store dataRetriever.StorageService
shardCoordinator sharding.Coordinator
storageType dataRetriever.UnitType
mutInterResultsForBlock sync.Mutex
interResultsForBlock map[string]*txInfo
mapTxToResult map[string][]string
intraShardMiniBlock *block.MiniBlock
economicsFee process.FeeHandler
}
// SaveCurrentIntermediateTxToStorage saves all current intermediate results to the provided storage unit
func (bpp *basePostProcessor) SaveCurrentIntermediateTxToStorage() error {
bpp.mutInterResultsForBlock.Lock()
defer bpp.mutInterResultsForBlock.Unlock()
for _, txInfoValue := range bpp.interResultsForBlock {
if check.IfNil(txInfoValue.tx) {
return process.ErrMissingTransaction
}
buff, err := bpp.marshalizer.Marshal(txInfoValue.tx)
if err != nil {
return err
}
errNotCritical := bpp.store.Put(bpp.storageType, bpp.hasher.Compute(string(buff)), buff)
if errNotCritical != nil {
log.Debug("SaveCurrentIntermediateTxToStorage put", "type", bpp.storageType, "error", errNotCritical.Error())
}
}
return nil
}
// CreateBlockStarted cleans the local cache map for processed/created intermediate transactions at this round
func (bpp *basePostProcessor) CreateBlockStarted() {
bpp.mutInterResultsForBlock.Lock()
bpp.interResultsForBlock = make(map[string]*txInfo)
bpp.intraShardMiniBlock = nil
bpp.mapTxToResult = make(map[string][]string)
bpp.mutInterResultsForBlock.Unlock()
}
// CreateMarshalizedData creates the marshalized data for broadcasting purposes
func (bpp *basePostProcessor) CreateMarshalizedData(txHashes [][]byte) ([][]byte, error) {
bpp.mutInterResultsForBlock.Lock()
defer bpp.mutInterResultsForBlock.Unlock()
mrsTxs := make([][]byte, 0, len(txHashes))
for _, txHash := range txHashes {
txInfoObject := bpp.interResultsForBlock[string(txHash)]
if txInfoObject == nil || check.IfNil(txInfoObject.tx) {
log.Warn("basePostProcessor.CreateMarshalizedData: tx not found", "hash", txHash)
continue
}
txMrs, err := bpp.marshalizer.Marshal(txInfoObject.tx)
if err != nil {
return nil, process.ErrMarshalWithoutSuccess
}
mrsTxs = append(mrsTxs, txMrs)
}
return mrsTxs, nil
}
// GetAllCurrentFinishedTxs returns the cached finalized transactions for current round
func (bpp *basePostProcessor) GetAllCurrentFinishedTxs() map[string]data.TransactionHandler {
bpp.mutInterResultsForBlock.Lock()
scrPool := make(map[string]data.TransactionHandler)
for txHash, txInfoInterResult := range bpp.interResultsForBlock {
scrPool[txHash] = txInfoInterResult.tx
}
bpp.mutInterResultsForBlock.Unlock()
return scrPool
}
func (bpp *basePostProcessor) verifyMiniBlock(createMBs map[uint32][]*block.MiniBlock, mb *block.MiniBlock) error {
createdScrMbs, ok := createMBs[mb.ReceiverShardID]
if !ok {
log.Debug("missing mini block", "type", mb.Type, "sender", mb.SenderShardID, "receiver", mb.ReceiverShardID, "numTxs", len(mb.TxHashes))
return process.ErrNilMiniBlocks
}
mapCreatedHashes := make(map[string]struct{})
for _, createdScrMb := range createdScrMbs {
createdHash, err := core.CalculateHash(bpp.marshalizer, bpp.hasher, createdScrMb)
if err != nil {
return err
}
mapCreatedHashes[string(createdHash)] = struct{}{}
}
receivedHash, err := core.CalculateHash(bpp.marshalizer, bpp.hasher, mb)
if err != nil {
return err
}
_, existsHash := mapCreatedHashes[string(receivedHash)]
if !existsHash {
log.Debug("received mini block", "type", mb.Type, "sender", mb.SenderShardID, "receiver", mb.ReceiverShardID, "numTxs", len(mb.TxHashes))
for _, createdScrMb := range createdScrMbs {
log.Debug("created mini block", "type", createdScrMb.Type, "sender", createdScrMb.SenderShardID, "receiver", createdScrMb.ReceiverShardID, "numTxs", len(createdScrMb.TxHashes))
}
return process.ErrMiniBlockHashMismatch
}
return nil
}
// GetCreatedInShardMiniBlock returns a clone of the intra shard mini block
func (bpp *basePostProcessor) GetCreatedInShardMiniBlock() *block.MiniBlock {
bpp.mutInterResultsForBlock.Lock()
defer bpp.mutInterResultsForBlock.Unlock()
if bpp.intraShardMiniBlock == nil {
return nil
}
return bpp.intraShardMiniBlock.Clone()
}
// RemoveProcessedResultsFor will remove the created results for the transactions which were reverted
func (bpp *basePostProcessor) RemoveProcessedResultsFor(txHashes [][]byte) {
bpp.mutInterResultsForBlock.Lock()
defer bpp.mutInterResultsForBlock.Unlock()
if len(bpp.mapTxToResult) == 0 {
return
}
for _, txHash := range txHashes {
resultHashes, ok := bpp.mapTxToResult[string(txHash)]
if !ok {
continue
}
for _, resultHash := range resultHashes {
delete(bpp.interResultsForBlock, resultHash)
}
delete(bpp.mapTxToResult, string(txHash))
}
}
func (bpp *basePostProcessor) splitMiniBlocksIfNeeded(miniBlocks []*block.MiniBlock) []*block.MiniBlock {
splitMiniBlocks := make([]*block.MiniBlock, 0)
for _, miniBlock := range miniBlocks {
splitMiniBlocks = append(splitMiniBlocks, bpp.splitMiniBlockIfNeeded(miniBlock)...)
}
return splitMiniBlocks
}
func (bpp *basePostProcessor) splitMiniBlockIfNeeded(miniBlock *block.MiniBlock) []*block.MiniBlock {
splitMiniBlocks := make([]*block.MiniBlock, 0)
currentMiniBlock := createEmptyMiniBlock(miniBlock)
gasLimitInReceiverShard := uint64(0)
for _, txHash := range miniBlock.TxHashes {
interResult, ok := bpp.interResultsForBlock[string(txHash)]
if !ok {
log.Warn("basePostProcessor.splitMiniBlockIfNeeded: missing tx", "hash", txHash)
continue
}
isGasLimitExceeded := gasLimitInReceiverShard+interResult.tx.GetGasLimit() >
bpp.economicsFee.MaxGasLimitPerBlock(0)
if isGasLimitExceeded {
log.Debug("basePostProcessor.splitMiniBlockIfNeeded: gas limit exceeded",
"mb type", currentMiniBlock.Type,
"sender shard", currentMiniBlock.SenderShardID,
"receiver shard", currentMiniBlock.ReceiverShardID,
"initial num txs", len(miniBlock.TxHashes),
"adjusted num txs", len(currentMiniBlock.TxHashes),
)
splitMiniBlocks = append(splitMiniBlocks, currentMiniBlock)
currentMiniBlock = createEmptyMiniBlock(miniBlock)
gasLimitInReceiverShard = 0
}
gasLimitInReceiverShard += interResult.tx.GetGasLimit()
currentMiniBlock.TxHashes = append(currentMiniBlock.TxHashes, txHash)
}
splitMiniBlocks = append(splitMiniBlocks, currentMiniBlock)
return splitMiniBlocks
}
func createEmptyMiniBlock(miniBlock *block.MiniBlock) *block.MiniBlock {
return &block.MiniBlock{
SenderShardID: miniBlock.SenderShardID,
ReceiverShardID: miniBlock.ReceiverShardID,
Type: miniBlock.Type,
Reserved: miniBlock.Reserved,
TxHashes: make([][]byte, 0),
}
}
func createMiniBlocksMap(scrMbs []*block.MiniBlock) map[uint32][]*block.MiniBlock {
createdMapMbs := make(map[uint32][]*block.MiniBlock)
for _, mb := range scrMbs {
_, ok := createdMapMbs[mb.ReceiverShardID]
if !ok {
createdMapMbs[mb.ReceiverShardID] = make([]*block.MiniBlock, 0)
}
createdMapMbs[mb.ReceiverShardID] = append(createdMapMbs[mb.ReceiverShardID], mb)
}
return createdMapMbs
}