forked from cerc-io/plugeth
eth, les: fix tracers (#22473)
* eth, les: fix tracer * eth: isolate live trie database in tracer * eth: fix nil * eth: fix * eth, les: add checkLive param * eth/tracer: fix
This commit is contained in:
gary rong
GitHub
parent
2d89fe0883
commit
a600dab7e5
@ -407,11 +407,10 @@ func (api *PrivateDebugAPI) StorageRangeAt(blockHash common.Hash, txIndex int, c
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if block == nil {
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return StorageRangeResult{}, fmt.Errorf("block %#x not found", blockHash)
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}
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_, _, statedb, release, err := api.eth.stateAtTransaction(block, txIndex, 0)
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_, _, statedb, err := api.eth.stateAtTransaction(block, txIndex, 0)
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if err != nil {
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return StorageRangeResult{}, err
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}
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defer release()
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st := statedb.StorageTrie(contractAddress)
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if st == nil {
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return StorageRangeResult{}, fmt.Errorf("account %x doesn't exist", contractAddress)
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@ -332,14 +332,10 @@ func (b *EthAPIBackend) StartMining(threads int) error {
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return b.eth.StartMining(threads)
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}
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func (b *EthAPIBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64) (*state.StateDB, func(), error) {
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return b.eth.stateAtBlock(block, reexec)
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func (b *EthAPIBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, checkLive bool) (*state.StateDB, error) {
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return b.eth.stateAtBlock(block, reexec, base, checkLive)
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}
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func (b *EthAPIBackend) StatesInRange(ctx context.Context, fromBlock *types.Block, toBlock *types.Block, reexec uint64) ([]*state.StateDB, func(), error) {
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return b.eth.statesInRange(fromBlock, toBlock, reexec)
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}
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func (b *EthAPIBackend) StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, func(), error) {
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func (b *EthAPIBackend) StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, error) {
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return b.eth.stateAtTransaction(block, txIndex, reexec)
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}
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@ -31,29 +31,47 @@ import (
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)
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// stateAtBlock retrieves the state database associated with a certain block.
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// If no state is locally available for the given block, a number of blocks are
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// attempted to be reexecuted to generate the desired state.
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func (eth *Ethereum) stateAtBlock(block *types.Block, reexec uint64) (statedb *state.StateDB, release func(), err error) {
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// If we have the state fully available, use that
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// If no state is locally available for the given block, a number of blocks
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// are attempted to be reexecuted to generate the desired state. The optional
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// base layer statedb can be passed then it's regarded as the statedb of the
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// parent block.
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func (eth *Ethereum) stateAtBlock(block *types.Block, reexec uint64, base *state.StateDB, checkLive bool) (statedb *state.StateDB, err error) {
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var (
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current *types.Block
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database state.Database
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report = true
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origin = block.NumberU64()
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)
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// Check the live database first if we have the state fully available, use that.
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if checkLive {
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statedb, err = eth.blockchain.StateAt(block.Root())
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if err == nil {
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return statedb, func() {}, nil
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return statedb, nil
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}
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}
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if base != nil {
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// The optional base statedb is given, mark the start point as parent block
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statedb, database, report = base, base.Database(), false
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current = eth.blockchain.GetBlock(block.ParentHash(), block.NumberU64()-1)
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} else {
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// Otherwise try to reexec blocks until we find a state or reach our limit
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origin := block.NumberU64()
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database := state.NewDatabaseWithConfig(eth.chainDb, &trie.Config{Cache: 16, Preimages: true})
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current = block
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// Create an ephemeral trie.Database for isolating the live one. Otherwise
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// the internal junks created by tracing will be persisted into the disk.
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database = state.NewDatabaseWithConfig(eth.chainDb, &trie.Config{Cache: 16})
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for i := uint64(0); i < reexec; i++ {
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if block.NumberU64() == 0 {
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return nil, nil, errors.New("genesis state is missing")
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if current.NumberU64() == 0 {
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return nil, errors.New("genesis state is missing")
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}
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parent := eth.blockchain.GetBlock(block.ParentHash(), block.NumberU64()-1)
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parent := eth.blockchain.GetBlock(current.ParentHash(), current.NumberU64()-1)
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if parent == nil {
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return nil, nil, fmt.Errorf("missing block %v %d", block.ParentHash(), block.NumberU64()-1)
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return nil, fmt.Errorf("missing block %v %d", current.ParentHash(), current.NumberU64()-1)
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}
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block = parent
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current = parent
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statedb, err = state.New(block.Root(), database, nil)
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statedb, err = state.New(current.Root(), database, nil)
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if err == nil {
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break
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}
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@ -61,9 +79,10 @@ func (eth *Ethereum) stateAtBlock(block *types.Block, reexec uint64) (statedb *s
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if err != nil {
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switch err.(type) {
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case *trie.MissingNodeError:
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return nil, nil, fmt.Errorf("required historical state unavailable (reexec=%d)", reexec)
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return nil, fmt.Errorf("required historical state unavailable (reexec=%d)", reexec)
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default:
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return nil, nil, err
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return nil, err
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}
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}
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}
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// State was available at historical point, regenerate
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@ -72,33 +91,29 @@ func (eth *Ethereum) stateAtBlock(block *types.Block, reexec uint64) (statedb *s
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logged time.Time
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parent common.Hash
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)
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defer func() {
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if err != nil && parent != (common.Hash{}) {
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database.TrieDB().Dereference(parent)
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}
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}()
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for block.NumberU64() < origin {
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for current.NumberU64() < origin {
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// Print progress logs if long enough time elapsed
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if time.Since(logged) > 8*time.Second {
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log.Info("Regenerating historical state", "block", block.NumberU64()+1, "target", origin, "remaining", origin-block.NumberU64()-1, "elapsed", time.Since(start))
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if time.Since(logged) > 8*time.Second && report {
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log.Info("Regenerating historical state", "block", current.NumberU64()+1, "target", origin, "remaining", origin-current.NumberU64()-1, "elapsed", time.Since(start))
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logged = time.Now()
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}
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// Retrieve the next block to regenerate and process it
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if block = eth.blockchain.GetBlockByNumber(block.NumberU64() + 1); block == nil {
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return nil, nil, fmt.Errorf("block #%d not found", block.NumberU64()+1)
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next := current.NumberU64() + 1
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if current = eth.blockchain.GetBlockByNumber(next); current == nil {
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return nil, fmt.Errorf("block #%d not found", next)
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}
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_, _, _, err := eth.blockchain.Processor().Process(block, statedb, vm.Config{})
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_, _, _, err := eth.blockchain.Processor().Process(current, statedb, vm.Config{})
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if err != nil {
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return nil, nil, fmt.Errorf("processing block %d failed: %v", block.NumberU64(), err)
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return nil, fmt.Errorf("processing block %d failed: %v", current.NumberU64(), err)
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}
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// Finalize the state so any modifications are written to the trie
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root, err := statedb.Commit(eth.blockchain.Config().IsEIP158(block.Number()))
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root, err := statedb.Commit(eth.blockchain.Config().IsEIP158(current.Number()))
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if err != nil {
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return nil, nil, err
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return nil, err
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}
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statedb, err = state.New(root, database, nil)
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if err != nil {
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return nil, nil, fmt.Errorf("state reset after block %d failed: %v", block.NumberU64(), err)
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return nil, fmt.Errorf("state reset after block %d failed: %v", current.NumberU64(), err)
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}
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database.TrieDB().Reference(root, common.Hash{})
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if parent != (common.Hash{}) {
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@ -106,104 +121,32 @@ func (eth *Ethereum) stateAtBlock(block *types.Block, reexec uint64) (statedb *s
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}
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parent = root
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}
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if report {
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nodes, imgs := database.TrieDB().Size()
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log.Info("Historical state regenerated", "block", block.NumberU64(), "elapsed", time.Since(start), "nodes", nodes, "preimages", imgs)
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return statedb, func() { database.TrieDB().Dereference(parent) }, nil
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}
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// statesInRange retrieves a batch of state databases associated with the specific
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// block ranges. If no state is locally available for the given range, a number of
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// blocks are attempted to be reexecuted to generate the ancestor state.
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func (eth *Ethereum) statesInRange(fromBlock, toBlock *types.Block, reexec uint64) (states []*state.StateDB, release func(), err error) {
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statedb, err := eth.blockchain.StateAt(fromBlock.Root())
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if err != nil {
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statedb, _, err = eth.stateAtBlock(fromBlock, reexec)
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log.Info("Historical state regenerated", "block", current.NumberU64(), "elapsed", time.Since(start), "nodes", nodes, "preimages", imgs)
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}
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if err != nil {
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return nil, nil, err
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}
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states = append(states, statedb.Copy())
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var (
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logged time.Time
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parent common.Hash
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start = time.Now()
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refs = []common.Hash{fromBlock.Root()}
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database = state.NewDatabaseWithConfig(eth.chainDb, &trie.Config{Cache: 16, Preimages: true})
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)
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// Release all resources(including the states referenced by `stateAtBlock`)
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// if error is returned.
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defer func() {
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if err != nil {
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for _, ref := range refs {
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database.TrieDB().Dereference(ref)
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}
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}
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}()
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for i := fromBlock.NumberU64() + 1; i <= toBlock.NumberU64(); i++ {
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// Print progress logs if long enough time elapsed
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if time.Since(logged) > 8*time.Second {
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logged = time.Now()
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log.Info("Regenerating historical state", "block", i, "target", fromBlock.NumberU64(), "remaining", toBlock.NumberU64()-i, "elapsed", time.Since(start))
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}
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// Retrieve the next block to regenerate and process it
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block := eth.blockchain.GetBlockByNumber(i)
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if block == nil {
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return nil, nil, fmt.Errorf("block #%d not found", i)
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}
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_, _, _, err := eth.blockchain.Processor().Process(block, statedb, vm.Config{})
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if err != nil {
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return nil, nil, fmt.Errorf("processing block %d failed: %v", block.NumberU64(), err)
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}
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// Finalize the state so any modifications are written to the trie
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root, err := statedb.Commit(eth.blockchain.Config().IsEIP158(block.Number()))
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if err != nil {
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return nil, nil, err
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}
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statedb, err := eth.blockchain.StateAt(root)
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if err != nil {
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return nil, nil, fmt.Errorf("state reset after block %d failed: %v", block.NumberU64(), err)
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}
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states = append(states, statedb.Copy())
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// Reference the trie twice, once for us, once for the tracer
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database.TrieDB().Reference(root, common.Hash{})
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database.TrieDB().Reference(root, common.Hash{})
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refs = append(refs, root)
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// Dereference all past tries we ourselves are done working with
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if parent != (common.Hash{}) {
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database.TrieDB().Dereference(parent)
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}
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parent = root
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}
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// release is handler to release all states referenced, including
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// the one referenced in `stateAtBlock`.
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release = func() {
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for _, ref := range refs {
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database.TrieDB().Dereference(ref)
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}
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}
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return states, release, nil
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return statedb, nil
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}
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// stateAtTransaction returns the execution environment of a certain transaction.
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func (eth *Ethereum) stateAtTransaction(block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, func(), error) {
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func (eth *Ethereum) stateAtTransaction(block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, error) {
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// Short circuit if it's genesis block.
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if block.NumberU64() == 0 {
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return nil, vm.BlockContext{}, nil, nil, errors.New("no transaction in genesis")
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return nil, vm.BlockContext{}, nil, errors.New("no transaction in genesis")
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}
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// Create the parent state database
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parent := eth.blockchain.GetBlock(block.ParentHash(), block.NumberU64()-1)
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if parent == nil {
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return nil, vm.BlockContext{}, nil, nil, fmt.Errorf("parent %#x not found", block.ParentHash())
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return nil, vm.BlockContext{}, nil, fmt.Errorf("parent %#x not found", block.ParentHash())
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}
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statedb, release, err := eth.stateAtBlock(parent, reexec)
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// Lookup the statedb of parent block from the live database,
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// otherwise regenerate it on the flight.
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statedb, err := eth.stateAtBlock(parent, reexec, nil, true)
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if err != nil {
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return nil, vm.BlockContext{}, nil, nil, err
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return nil, vm.BlockContext{}, nil, err
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}
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if txIndex == 0 && len(block.Transactions()) == 0 {
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return nil, vm.BlockContext{}, statedb, release, nil
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return nil, vm.BlockContext{}, statedb, nil
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}
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// Recompute transactions up to the target index.
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signer := types.MakeSigner(eth.blockchain.Config(), block.Number())
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@ -213,19 +156,17 @@ func (eth *Ethereum) stateAtTransaction(block *types.Block, txIndex int, reexec
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txContext := core.NewEVMTxContext(msg)
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context := core.NewEVMBlockContext(block.Header(), eth.blockchain, nil)
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if idx == txIndex {
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return msg, context, statedb, release, nil
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return msg, context, statedb, nil
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}
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// Not yet the searched for transaction, execute on top of the current state
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vmenv := vm.NewEVM(context, txContext, statedb, eth.blockchain.Config(), vm.Config{})
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statedb.Prepare(tx.Hash(), block.Hash(), idx)
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if _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(tx.Gas())); err != nil {
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release()
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return nil, vm.BlockContext{}, nil, nil, fmt.Errorf("transaction %#x failed: %v", tx.Hash(), err)
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return nil, vm.BlockContext{}, nil, fmt.Errorf("transaction %#x failed: %v", tx.Hash(), err)
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}
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// Ensure any modifications are committed to the state
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// Only delete empty objects if EIP158/161 (a.k.a Spurious Dragon) is in effect
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statedb.Finalise(vmenv.ChainConfig().IsEIP158(block.Number()))
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}
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release()
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return nil, vm.BlockContext{}, nil, nil, fmt.Errorf("transaction index %d out of range for block %#x", txIndex, block.Hash())
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return nil, vm.BlockContext{}, nil, fmt.Errorf("transaction index %d out of range for block %#x", txIndex, block.Hash())
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}
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@ -67,9 +67,8 @@ type Backend interface {
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ChainConfig() *params.ChainConfig
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Engine() consensus.Engine
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ChainDb() ethdb.Database
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StateAtBlock(ctx context.Context, block *types.Block, reexec uint64) (*state.StateDB, func(), error)
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StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, func(), error)
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StatesInRange(ctx context.Context, fromBlock *types.Block, toBlock *types.Block, reexec uint64) ([]*state.StateDB, func(), error)
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StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, checkLive bool) (*state.StateDB, error)
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StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, error)
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}
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// API is the collection of tracing APIs exposed over the private debugging endpoint.
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@ -187,6 +186,7 @@ type txTraceResult struct {
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type blockTraceTask struct {
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statedb *state.StateDB // Intermediate state prepped for tracing
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block *types.Block // Block to trace the transactions from
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rootref common.Hash // Trie root reference held for this task
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results []*txTraceResult // Trace results procudes by the task
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}
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@ -233,24 +233,12 @@ func (api *API) traceChain(ctx context.Context, start, end *types.Block, config
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}
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sub := notifier.CreateSubscription()
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// Shift the border to a block ahead in order to get the states
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// before these blocks.
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endBlock, err := api.blockByNumberAndHash(ctx, rpc.BlockNumber(end.NumberU64()-1), end.ParentHash())
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if err != nil {
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return nil, err
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}
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// Prepare all the states for tracing. Note this procedure can take very
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// long time. Timeout mechanism is necessary.
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reexec := defaultTraceReexec
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if config != nil && config.Reexec != nil {
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reexec = *config.Reexec
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}
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states, release, err := api.backend.StatesInRange(ctx, start, endBlock, reexec)
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if err != nil {
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return nil, err
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}
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defer release() // Release all the resources in the last step.
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blocks := int(end.NumberU64() - start.NumberU64())
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threads := runtime.NumCPU()
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if threads > blocks {
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@ -260,6 +248,7 @@ func (api *API) traceChain(ctx context.Context, start, end *types.Block, config
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pend = new(sync.WaitGroup)
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tasks = make(chan *blockTraceTask, threads)
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results = make(chan *blockTraceTask, threads)
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localctx = context.Background()
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)
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for th := 0; th < threads; th++ {
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pend.Add(1)
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@ -269,7 +258,7 @@ func (api *API) traceChain(ctx context.Context, start, end *types.Block, config
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// Fetch and execute the next block trace tasks
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for task := range tasks {
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signer := types.MakeSigner(api.backend.ChainConfig(), task.block.Number())
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blockCtx := core.NewEVMBlockContext(task.block.Header(), api.chainContext(ctx), nil)
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blockCtx := core.NewEVMBlockContext(task.block.Header(), api.chainContext(localctx), nil)
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// Trace all the transactions contained within
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for i, tx := range task.block.Transactions() {
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msg, _ := tx.AsMessage(signer)
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@ -278,7 +267,7 @@ func (api *API) traceChain(ctx context.Context, start, end *types.Block, config
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hash: tx.Hash(),
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block: task.block.Hash(),
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}
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res, err := api.traceTx(ctx, msg, txctx, blockCtx, task.statedb, config)
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res, err := api.traceTx(localctx, msg, txctx, blockCtx, task.statedb, config)
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if err != nil {
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task.results[i] = &txTraceResult{Error: err.Error()}
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log.Warn("Tracing failed", "hash", tx.Hash(), "block", task.block.NumberU64(), "err", err)
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@ -306,6 +295,8 @@ func (api *API) traceChain(ctx context.Context, start, end *types.Block, config
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number uint64
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traced uint64
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failed error
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parent common.Hash
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statedb *state.StateDB
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)
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// Ensure everything is properly cleaned up on any exit path
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defer func() {
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@ -323,7 +314,7 @@ func (api *API) traceChain(ctx context.Context, start, end *types.Block, config
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close(results)
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||||
}()
|
||||
// Feed all the blocks both into the tracer, as well as fast process concurrently
|
||||
for number = start.NumberU64() + 1; number <= end.NumberU64(); number++ {
|
||||
for number = start.NumberU64(); number < end.NumberU64(); number++ {
|
||||
// Stop tracing if interruption was requested
|
||||
select {
|
||||
case <-notifier.Closed():
|
||||
@ -335,16 +326,39 @@ func (api *API) traceChain(ctx context.Context, start, end *types.Block, config
|
||||
logged = time.Now()
|
||||
log.Info("Tracing chain segment", "start", start.NumberU64(), "end", end.NumberU64(), "current", number, "transactions", traced, "elapsed", time.Since(begin))
|
||||
}
|
||||
// Retrieve the next block to trace
|
||||
block, err := api.blockByNumber(ctx, rpc.BlockNumber(number))
|
||||
// Retrieve the parent state to trace on top
|
||||
block, err := api.blockByNumber(localctx, rpc.BlockNumber(number))
|
||||
if err != nil {
|
||||
failed = err
|
||||
break
|
||||
}
|
||||
// Prepare the statedb for tracing. Don't use the live database for
|
||||
// tracing to avoid persisting state junks into the database.
|
||||
statedb, err = api.backend.StateAtBlock(localctx, block, reexec, statedb, false)
|
||||
if err != nil {
|
||||
failed = err
|
||||
break
|
||||
}
|
||||
if statedb.Database().TrieDB() != nil {
|
||||
// Hold the reference for tracer, will be released at the final stage
|
||||
statedb.Database().TrieDB().Reference(block.Root(), common.Hash{})
|
||||
|
||||
// Release the parent state because it's already held by the tracer
|
||||
if parent != (common.Hash{}) {
|
||||
statedb.Database().TrieDB().Dereference(parent)
|
||||
}
|
||||
}
|
||||
parent = block.Root()
|
||||
|
||||
next, err := api.blockByNumber(localctx, rpc.BlockNumber(number+1))
|
||||
if err != nil {
|
||||
failed = err
|
||||
break
|
||||
}
|
||||
// Send the block over to the concurrent tracers (if not in the fast-forward phase)
|
||||
txs := block.Transactions()
|
||||
txs := next.Transactions()
|
||||
select {
|
||||
case tasks <- &blockTraceTask{statedb: states[int(number-start.NumberU64()-1)], block: block, results: make([]*txTraceResult, len(txs))}:
|
||||
case tasks <- &blockTraceTask{statedb: statedb.Copy(), block: next, rootref: block.Root(), results: make([]*txTraceResult, len(txs))}:
|
||||
case <-notifier.Closed():
|
||||
return
|
||||
}
|
||||
@ -367,6 +381,10 @@ func (api *API) traceChain(ctx context.Context, start, end *types.Block, config
|
||||
}
|
||||
done[uint64(result.Block)] = result
|
||||
|
||||
// Dereference any parent tries held in memory by this task
|
||||
if res.statedb.Database().TrieDB() != nil {
|
||||
res.statedb.Database().TrieDB().Dereference(res.rootref)
|
||||
}
|
||||
// Stream completed traces to the user, aborting on the first error
|
||||
for result, ok := done[next]; ok; result, ok = done[next] {
|
||||
if len(result.Traces) > 0 || next == end.NumberU64() {
|
||||
@ -470,12 +488,10 @@ func (api *API) traceBlock(ctx context.Context, block *types.Block, config *Trac
|
||||
if config != nil && config.Reexec != nil {
|
||||
reexec = *config.Reexec
|
||||
}
|
||||
statedb, release, err := api.backend.StateAtBlock(ctx, parent, reexec)
|
||||
statedb, err := api.backend.StateAtBlock(ctx, parent, reexec, nil, true)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer release()
|
||||
|
||||
// Execute all the transaction contained within the block concurrently
|
||||
var (
|
||||
signer = types.MakeSigner(api.backend.ChainConfig(), block.Number())
|
||||
@ -561,12 +577,10 @@ func (api *API) standardTraceBlockToFile(ctx context.Context, block *types.Block
|
||||
if config != nil && config.Reexec != nil {
|
||||
reexec = *config.Reexec
|
||||
}
|
||||
statedb, release, err := api.backend.StateAtBlock(ctx, parent, reexec)
|
||||
statedb, err := api.backend.StateAtBlock(ctx, parent, reexec, nil, true)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer release()
|
||||
|
||||
// Retrieve the tracing configurations, or use default values
|
||||
var (
|
||||
logConfig vm.LogConfig
|
||||
@ -690,12 +704,10 @@ func (api *API) TraceTransaction(ctx context.Context, hash common.Hash, config *
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
msg, vmctx, statedb, release, err := api.backend.StateAtTransaction(ctx, block, int(index), reexec)
|
||||
msg, vmctx, statedb, err := api.backend.StateAtTransaction(ctx, block, int(index), reexec)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer release()
|
||||
|
||||
txctx := &txTraceContext{
|
||||
index: int(index),
|
||||
hash: hash,
|
||||
@ -727,12 +739,10 @@ func (api *API) TraceCall(ctx context.Context, args ethapi.CallArgs, blockNrOrHa
|
||||
if config != nil && config.Reexec != nil {
|
||||
reexec = *config.Reexec
|
||||
}
|
||||
statedb, release, err := api.backend.StateAtBlock(ctx, block, reexec)
|
||||
statedb, err := api.backend.StateAtBlock(ctx, block, reexec, nil, true)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer release()
|
||||
|
||||
// Execute the trace
|
||||
msg := args.ToMessage(api.backend.RPCGasCap())
|
||||
vmctx := core.NewEVMBlockContext(block.Header(), api.chainContext(ctx), nil)
|
||||
@ -767,7 +777,9 @@ func (api *API) traceTx(ctx context.Context, message core.Message, txctx *txTrac
|
||||
deadlineCtx, cancel := context.WithTimeout(ctx, timeout)
|
||||
go func() {
|
||||
<-deadlineCtx.Done()
|
||||
if deadlineCtx.Err() == context.DeadlineExceeded {
|
||||
tracer.(*Tracer).Stop(errors.New("execution timeout"))
|
||||
}
|
||||
}()
|
||||
defer cancel()
|
||||
|
||||
|
||||
@ -137,25 +137,25 @@ func (b *testBackend) ChainDb() ethdb.Database {
|
||||
return b.chaindb
|
||||
}
|
||||
|
||||
func (b *testBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64) (*state.StateDB, func(), error) {
|
||||
func (b *testBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, checkLive bool) (*state.StateDB, error) {
|
||||
statedb, err := b.chain.StateAt(block.Root())
|
||||
if err != nil {
|
||||
return nil, nil, errStateNotFound
|
||||
return nil, errStateNotFound
|
||||
}
|
||||
return statedb, func() {}, nil
|
||||
return statedb, nil
|
||||
}
|
||||
|
||||
func (b *testBackend) StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, func(), error) {
|
||||
func (b *testBackend) StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, error) {
|
||||
parent := b.chain.GetBlock(block.ParentHash(), block.NumberU64()-1)
|
||||
if parent == nil {
|
||||
return nil, vm.BlockContext{}, nil, nil, errBlockNotFound
|
||||
return nil, vm.BlockContext{}, nil, errBlockNotFound
|
||||
}
|
||||
statedb, err := b.chain.StateAt(parent.Root())
|
||||
if err != nil {
|
||||
return nil, vm.BlockContext{}, nil, nil, errStateNotFound
|
||||
return nil, vm.BlockContext{}, nil, errStateNotFound
|
||||
}
|
||||
if txIndex == 0 && len(block.Transactions()) == 0 {
|
||||
return nil, vm.BlockContext{}, statedb, func() {}, nil
|
||||
return nil, vm.BlockContext{}, statedb, nil
|
||||
}
|
||||
// Recompute transactions up to the target index.
|
||||
signer := types.MakeSigner(b.chainConfig, block.Number())
|
||||
@ -164,31 +164,15 @@ func (b *testBackend) StateAtTransaction(ctx context.Context, block *types.Block
|
||||
txContext := core.NewEVMTxContext(msg)
|
||||
context := core.NewEVMBlockContext(block.Header(), b.chain, nil)
|
||||
if idx == txIndex {
|
||||
return msg, context, statedb, func() {}, nil
|
||||
return msg, context, statedb, nil
|
||||
}
|
||||
vmenv := vm.NewEVM(context, txContext, statedb, b.chainConfig, vm.Config{})
|
||||
if _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(tx.Gas())); err != nil {
|
||||
return nil, vm.BlockContext{}, nil, nil, fmt.Errorf("transaction %#x failed: %v", tx.Hash(), err)
|
||||
return nil, vm.BlockContext{}, nil, fmt.Errorf("transaction %#x failed: %v", tx.Hash(), err)
|
||||
}
|
||||
statedb.Finalise(vmenv.ChainConfig().IsEIP158(block.Number()))
|
||||
}
|
||||
return nil, vm.BlockContext{}, nil, nil, fmt.Errorf("transaction index %d out of range for block %#x", txIndex, block.Hash())
|
||||
}
|
||||
|
||||
func (b *testBackend) StatesInRange(ctx context.Context, fromBlock *types.Block, toBlock *types.Block, reexec uint64) ([]*state.StateDB, func(), error) {
|
||||
var result []*state.StateDB
|
||||
for number := fromBlock.NumberU64(); number <= toBlock.NumberU64(); number += 1 {
|
||||
block := b.chain.GetBlockByNumber(number)
|
||||
if block == nil {
|
||||
return nil, nil, errBlockNotFound
|
||||
}
|
||||
statedb, err := b.chain.StateAt(block.Root())
|
||||
if err != nil {
|
||||
return nil, nil, errStateNotFound
|
||||
}
|
||||
result = append(result, statedb)
|
||||
}
|
||||
return result, func() {}, nil
|
||||
return nil, vm.BlockContext{}, nil, fmt.Errorf("transaction index %d out of range for block %#x", txIndex, block.Hash())
|
||||
}
|
||||
|
||||
func TestTraceCall(t *testing.T) {
|
||||
|
||||
@ -298,14 +298,10 @@ func (b *LesApiBackend) CurrentHeader() *types.Header {
|
||||
return b.eth.blockchain.CurrentHeader()
|
||||
}
|
||||
|
||||
func (b *LesApiBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64) (*state.StateDB, func(), error) {
|
||||
func (b *LesApiBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, checkLive bool) (*state.StateDB, error) {
|
||||
return b.eth.stateAtBlock(ctx, block, reexec)
|
||||
}
|
||||
|
||||
func (b *LesApiBackend) StatesInRange(ctx context.Context, fromBlock *types.Block, toBlock *types.Block, reexec uint64) ([]*state.StateDB, func(), error) {
|
||||
return b.eth.statesInRange(ctx, fromBlock, toBlock, reexec)
|
||||
}
|
||||
|
||||
func (b *LesApiBackend) StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, func(), error) {
|
||||
func (b *LesApiBackend) StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, error) {
|
||||
return b.eth.stateAtTransaction(ctx, block, txIndex, reexec)
|
||||
}
|
||||
|
||||
@ -29,41 +29,27 @@ import (
|
||||
)
|
||||
|
||||
// stateAtBlock retrieves the state database associated with a certain block.
|
||||
func (leth *LightEthereum) stateAtBlock(ctx context.Context, block *types.Block, reexec uint64) (*state.StateDB, func(), error) {
|
||||
return light.NewState(ctx, block.Header(), leth.odr), func() {}, nil
|
||||
}
|
||||
|
||||
// statesInRange retrieves a batch of state databases associated with the specific
|
||||
// block ranges.
|
||||
func (leth *LightEthereum) statesInRange(ctx context.Context, fromBlock *types.Block, toBlock *types.Block, reexec uint64) ([]*state.StateDB, func(), error) {
|
||||
var states []*state.StateDB
|
||||
for number := fromBlock.NumberU64(); number <= toBlock.NumberU64(); number++ {
|
||||
header, err := leth.blockchain.GetHeaderByNumberOdr(ctx, number)
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
states = append(states, light.NewState(ctx, header, leth.odr))
|
||||
}
|
||||
return states, nil, nil
|
||||
func (leth *LightEthereum) stateAtBlock(ctx context.Context, block *types.Block, reexec uint64) (*state.StateDB, error) {
|
||||
return light.NewState(ctx, block.Header(), leth.odr), nil
|
||||
}
|
||||
|
||||
// stateAtTransaction returns the execution environment of a certain transaction.
|
||||
func (leth *LightEthereum) stateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, func(), error) {
|
||||
func (leth *LightEthereum) stateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, error) {
|
||||
// Short circuit if it's genesis block.
|
||||
if block.NumberU64() == 0 {
|
||||
return nil, vm.BlockContext{}, nil, nil, errors.New("no transaction in genesis")
|
||||
return nil, vm.BlockContext{}, nil, errors.New("no transaction in genesis")
|
||||
}
|
||||
// Create the parent state database
|
||||
parent, err := leth.blockchain.GetBlock(ctx, block.ParentHash(), block.NumberU64()-1)
|
||||
if err != nil {
|
||||
return nil, vm.BlockContext{}, nil, nil, err
|
||||
return nil, vm.BlockContext{}, nil, err
|
||||
}
|
||||
statedb, _, err := leth.stateAtBlock(ctx, parent, reexec)
|
||||
statedb, err := leth.stateAtBlock(ctx, parent, reexec)
|
||||
if err != nil {
|
||||
return nil, vm.BlockContext{}, nil, nil, err
|
||||
return nil, vm.BlockContext{}, nil, err
|
||||
}
|
||||
if txIndex == 0 && len(block.Transactions()) == 0 {
|
||||
return nil, vm.BlockContext{}, statedb, func() {}, nil
|
||||
return nil, vm.BlockContext{}, statedb, nil
|
||||
}
|
||||
// Recompute transactions up to the target index.
|
||||
signer := types.MakeSigner(leth.blockchain.Config(), block.Number())
|
||||
@ -74,16 +60,16 @@ func (leth *LightEthereum) stateAtTransaction(ctx context.Context, block *types.
|
||||
context := core.NewEVMBlockContext(block.Header(), leth.blockchain, nil)
|
||||
statedb.Prepare(tx.Hash(), block.Hash(), idx)
|
||||
if idx == txIndex {
|
||||
return msg, context, statedb, func() {}, nil
|
||||
return msg, context, statedb, nil
|
||||
}
|
||||
// Not yet the searched for transaction, execute on top of the current state
|
||||
vmenv := vm.NewEVM(context, txContext, statedb, leth.blockchain.Config(), vm.Config{})
|
||||
if _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(tx.Gas())); err != nil {
|
||||
return nil, vm.BlockContext{}, nil, nil, fmt.Errorf("transaction %#x failed: %v", tx.Hash(), err)
|
||||
return nil, vm.BlockContext{}, nil, fmt.Errorf("transaction %#x failed: %v", tx.Hash(), err)
|
||||
}
|
||||
// Ensure any modifications are committed to the state
|
||||
// Only delete empty objects if EIP158/161 (a.k.a Spurious Dragon) is in effect
|
||||
statedb.Finalise(vmenv.ChainConfig().IsEIP158(block.Number()))
|
||||
}
|
||||
return nil, vm.BlockContext{}, nil, nil, fmt.Errorf("transaction index %d out of range for block %#x", txIndex, block.Hash())
|
||||
return nil, vm.BlockContext{}, nil, fmt.Errorf("transaction index %d out of range for block %#x", txIndex, block.Hash())
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user