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- // Copyright 2019 The go-ethereum Authors
- // This file is part of the go-ethereum library.
- //
- // The go-ethereum library is free software: you can redistribute it and/or modify
- // it under the terms of the GNU Lesser General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // The go-ethereum library is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU Lesser General Public License for more details.
- //
- // You should have received a copy of the GNU Lesser General Public License
- // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
- package core
- import (
- "sync"
- "sync/atomic"
- "time"
- "github.com/ethereum/go-ethereum/consensus"
- "github.com/ethereum/go-ethereum/core/state"
- "github.com/ethereum/go-ethereum/core/types"
- "github.com/ethereum/go-ethereum/core/vm"
- "github.com/ethereum/go-ethereum/params"
- // Quorum
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/core/mps"
- "github.com/ethereum/go-ethereum/private"
- )
- // statePrefetcher is a basic Prefetcher, which blindly executes a block on top
- // of an arbitrary state with the goal of prefetching potentially useful state
- // data from disk before the main block processor start executing.
- type statePrefetcher struct {
- config *params.ChainConfig // Chain configuration options
- bc *BlockChain // Canonical block chain
- engine consensus.Engine // Consensus engine used for block rewards
- pend sync.WaitGroup // Quorum: wait for MPS prefetching
- }
- // newStatePrefetcher initialises a new statePrefetcher.
- func newStatePrefetcher(config *params.ChainConfig, bc *BlockChain, engine consensus.Engine) *statePrefetcher {
- return &statePrefetcher{
- config: config,
- bc: bc,
- engine: engine,
- }
- }
- // Prefetch processes the state changes according to the Ethereum rules by running
- // the transaction messages using the statedb, but any changes are discarded. The
- // only goal is to pre-cache transaction signatures and state trie nodes.
- // Quorum: Add privateStateDb argument
- func (p *statePrefetcher) Prefetch(block *types.Block, statedb *state.StateDB, privateStateRepo mps.PrivateStateRepository, cfg vm.Config, interrupt *uint32) {
- var (
- header = block.Header()
- gaspool = new(GasPool).AddGas(block.GasLimit())
- )
- // Iterate over and process the individual transactions
- byzantium := p.config.IsByzantium(block.Number())
- for i, tx := range block.Transactions() {
- // If block precaching was interrupted, abort
- if interrupt != nil && atomic.LoadUint32(interrupt) == 1 {
- return
- }
- // Quorum
- if tx.IsPrivate() && privateStateRepo.IsMPS() {
- p.prefetchMpsTransaction(block, tx, i, statedb.Copy(), privateStateRepo, cfg, interrupt)
- }
- privateStateDb, _ := privateStateRepo.DefaultState()
- privateStateDb.Prepare(tx.Hash(), block.Hash(), i)
- // End Quorum
- // Block precaching permitted to continue, execute the transaction
- statedb.Prepare(tx.Hash(), block.Hash(), i)
- innerApply := createInnerApply(block, tx, i, statedb, privateStateRepo, cfg, interrupt, p, privateStateDb)
- // Quorum: Add privateStateDb argument
- if err := precacheTransaction(p.config, p.bc, nil, gaspool, statedb, privateStateDb, header, tx, cfg, innerApply); err != nil {
- return // Ugh, something went horribly wrong, bail out
- }
- // If we're pre-byzantium, pre-load trie nodes for the intermediate root
- if !byzantium {
- statedb.IntermediateRoot(true)
- }
- }
- // If were post-byzantium, pre-load trie nodes for the final root hash
- if byzantium {
- statedb.IntermediateRoot(true)
- }
- }
- // precacheTransaction attempts to apply a transaction to the given state database
- // and uses the input parameters for its environment. The goal is not to execute
- // the transaction successfully, rather to warm up touched data slots.
- // Quorum: Add privateStateDb and isMPS arguments
- func precacheTransaction(config *params.ChainConfig, bc ChainContext, author *common.Address, gaspool *GasPool, statedb *state.StateDB, privateStateDb *state.StateDB, header *types.Header, tx *types.Transaction, cfg vm.Config, innerApply func(*types.Transaction) error) error {
- // Convert the transaction into an executable message and pre-cache its sender
- msg, err := tx.AsMessage(types.MakeSigner(config, header.Number))
- if err != nil {
- return err
- }
- // Quorum
- // Create the EVM and execute the transaction
- context := NewEVMBlockContext(header, bc, author)
- txContext := NewEVMTxContext(msg)
- var evm *vm.EVM
- // Quorum: Add privateStateDb argument
- if tx.IsPrivate() {
- evm = vm.NewEVM(context, txContext, statedb, privateStateDb, config, cfg)
- } else {
- evm = vm.NewEVM(context, txContext, statedb, statedb, config, cfg)
- }
- // End Quorum
- evm.SetCurrentTX(tx) // Quorum
- evm.InnerApply = innerApply
- // Add addresses to access list if applicable
- _, err = ApplyMessage(evm, msg, gaspool)
- return err
- }
- // Quorum
- func (p *statePrefetcher) prefetchMpsTransaction(block *types.Block, tx *types.Transaction, txIndex int, statedb *state.StateDB, privateStateRepo mps.PrivateStateRepository, cfg vm.Config, interrupt *uint32) {
- byzantium := p.config.IsByzantium(block.Number())
- // Block precaching permitted to continue, execute the transaction
- _, managedParties, _, _, err := private.P.Receive(common.BytesToEncryptedPayloadHash(tx.Data()))
- if err != nil {
- return
- }
- for _, managedParty := range managedParties {
- if interrupt != nil && atomic.LoadUint32(interrupt) == 1 {
- return
- }
- psMetadata, err := p.bc.PrivateStateManager().ResolveForManagedParty(managedParty)
- if err != nil {
- continue
- }
- privateStateDb, err := privateStateRepo.StatePSI(psMetadata.ID)
- if err != nil {
- continue
- }
- p.pend.Add(1)
- innerApply := createInnerApply(block, tx, txIndex, statedb, privateStateRepo, cfg, interrupt, p, privateStateDb)
- go func(start time.Time, followup *types.Block, statedb *state.StateDB, privateStateDb *state.StateDB, tx *types.Transaction, gaspool *GasPool) {
- privateStateDb.Prepare(tx.Hash(), block.Hash(), txIndex)
- if err := precacheTransaction(p.config, p.bc, nil, gaspool, statedb, privateStateDb, followup.Header(), tx, cfg, innerApply); err != nil {
- return
- }
- // If we're pre-byzantium, pre-load trie nodes for the intermediate root
- if !byzantium {
- privateStateDb.IntermediateRoot(true)
- }
- p.pend.Done()
- }(time.Now(), block, statedb, privateStateDb, tx, new(GasPool).AddGas(tx.Gas())) // TODO ricardolyn: which gas: block or Tx?
- }
- p.pend.Wait()
- }
- func createInnerApply(block *types.Block, tx *types.Transaction, txIndex int, statedb *state.StateDB, privateStateRepo mps.PrivateStateRepository, cfg vm.Config, interrupt *uint32, p *statePrefetcher, privateStateDb *state.StateDB) func(innerTx *types.Transaction) error {
- return func(innerTx *types.Transaction) error {
- if !tx.IsPrivacyMarker() {
- return nil
- } else if innerTx.IsPrivate() && privateStateRepo.IsMPS() {
- p.prefetchMpsTransaction(block, innerTx, txIndex, statedb.Copy(), privateStateRepo, cfg, interrupt)
- return nil
- } else {
- return precacheTransaction(p.config, p.bc, nil, new(GasPool).AddGas(innerTx.Gas()), statedb, privateStateDb, block.Header(), innerTx, cfg, nil)
- }
- }
- }
- // End Quorum
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