From 5258785c81959109138ebeca613f12c277188abc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Thu, 21 Dec 2017 13:56:11 +0200
Subject: cmd, core, eth/tracers: support fancier js tracing (#15516)
* cmd, core, eth/tracers: support fancier js tracing
* eth, internal/web3ext: rework trace API, concurrency, chain tracing
* eth/tracers: add three more JavaScript tracers
* eth/tracers, vendor: swap ottovm to duktape for tracing
* core, eth, internal: finalize call tracer and needed extras
* eth, tests: prestate tracer, call test suite, rewinding
* vendor: fix windows builds for tracer js engine
* vendor: temporary duktape fix
* eth/tracers: fix up 4byte and evmdis tracer
* vendor: pull in latest duktape with my upstream fixes
* eth: fix some review comments
* eth: rename rewind to reexec to make it more obvious
* core/vm: terminate tracing using defers
---
eth/api.go | 251 +------
eth/api_tracer.go | 727 +++++++++++++++++++++
eth/handler.go | 10 +-
eth/tracers/internal/tracers/4byte_tracer.js | 86 +++
eth/tracers/internal/tracers/assets.go | 350 ++++++++++
eth/tracers/internal/tracers/call_tracer.js | 246 +++++++
eth/tracers/internal/tracers/evmdis_tracer.js | 93 +++
eth/tracers/internal/tracers/noop_tracer.js | 29 +
eth/tracers/internal/tracers/opcount_tracer.js | 32 +
eth/tracers/internal/tracers/prestate_tracer.js | 103 +++
eth/tracers/internal/tracers/tracers.go | 21 +
eth/tracers/testdata/call_tracer_create.json | 58 ++
eth/tracers/testdata/call_tracer_deep_calls.json | 415 ++++++++++++
eth/tracers/testdata/call_tracer_delegatecall.json | 97 +++
.../call_tracer_inner_create_oog_outer_throw.json | 77 +++
.../call_tracer_inner_throw_outer_revert.json | 81 +++
eth/tracers/testdata/call_tracer_oog.json | 60 ++
eth/tracers/testdata/call_tracer_revert.json | 58 ++
eth/tracers/testdata/call_tracer_simple.json | 78 +++
eth/tracers/testdata/call_tracer_throw.json | 62 ++
eth/tracers/tracer.go | 618 ++++++++++++++++++
eth/tracers/tracer_test.go | 140 ++++
eth/tracers/tracers.go | 53 ++
eth/tracers/tracers_test.go | 194 ++++++
24 files changed, 3685 insertions(+), 254 deletions(-)
create mode 100644 eth/api_tracer.go
create mode 100644 eth/tracers/internal/tracers/4byte_tracer.js
create mode 100644 eth/tracers/internal/tracers/assets.go
create mode 100644 eth/tracers/internal/tracers/call_tracer.js
create mode 100644 eth/tracers/internal/tracers/evmdis_tracer.js
create mode 100644 eth/tracers/internal/tracers/noop_tracer.js
create mode 100644 eth/tracers/internal/tracers/opcount_tracer.js
create mode 100644 eth/tracers/internal/tracers/prestate_tracer.js
create mode 100644 eth/tracers/internal/tracers/tracers.go
create mode 100644 eth/tracers/testdata/call_tracer_create.json
create mode 100644 eth/tracers/testdata/call_tracer_deep_calls.json
create mode 100644 eth/tracers/testdata/call_tracer_delegatecall.json
create mode 100644 eth/tracers/testdata/call_tracer_inner_create_oog_outer_throw.json
create mode 100644 eth/tracers/testdata/call_tracer_inner_throw_outer_revert.json
create mode 100644 eth/tracers/testdata/call_tracer_oog.json
create mode 100644 eth/tracers/testdata/call_tracer_revert.json
create mode 100644 eth/tracers/testdata/call_tracer_simple.json
create mode 100644 eth/tracers/testdata/call_tracer_throw.json
create mode 100644 eth/tracers/tracer.go
create mode 100644 eth/tracers/tracer_test.go
create mode 100644 eth/tracers/tracers.go
create mode 100644 eth/tracers/tracers_test.go
(limited to 'eth')
diff --git a/eth/api.go b/eth/api.go
index c748f75de..0db3eb554 100644
--- a/eth/api.go
+++ b/eth/api.go
@@ -17,24 +17,19 @@
package eth
import (
- "bytes"
"compress/gzip"
"context"
"fmt"
"io"
- "io/ioutil"
"math/big"
"os"
"strings"
- "time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core"
"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/internal/ethapi"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/miner"
"github.com/ethereum/go-ethereum/params"
@@ -43,8 +38,6 @@ import (
"github.com/ethereum/go-ethereum/trie"
)
-const defaultTraceTimeout = 5 * time.Second
-
// PublicEthereumAPI provides an API to access Ethereum full node-related
// information.
type PublicEthereumAPI struct {
@@ -348,248 +341,6 @@ func NewPrivateDebugAPI(config *params.ChainConfig, eth *Ethereum) *PrivateDebug
return &PrivateDebugAPI{config: config, eth: eth}
}
-// BlockTraceResult is the returned value when replaying a block to check for
-// consensus results and full VM trace logs for all included transactions.
-type BlockTraceResult struct {
- Validated bool `json:"validated"`
- StructLogs []ethapi.StructLogRes `json:"structLogs"`
- Error string `json:"error"`
-}
-
-// TraceArgs holds extra parameters to trace functions
-type TraceArgs struct {
- *vm.LogConfig
- Tracer *string
- Timeout *string
-}
-
-// TraceBlock processes the given block'api RLP but does not import the block in to
-// the chain.
-func (api *PrivateDebugAPI) TraceBlock(blockRlp []byte, config *vm.LogConfig) BlockTraceResult {
- var block types.Block
- err := rlp.Decode(bytes.NewReader(blockRlp), &block)
- if err != nil {
- return BlockTraceResult{Error: fmt.Sprintf("could not decode block: %v", err)}
- }
-
- validated, logs, err := api.traceBlock(&block, config)
- return BlockTraceResult{
- Validated: validated,
- StructLogs: ethapi.FormatLogs(logs),
- Error: formatError(err),
- }
-}
-
-// TraceBlockFromFile loads the block'api RLP from the given file name and attempts to
-// process it but does not import the block in to the chain.
-func (api *PrivateDebugAPI) TraceBlockFromFile(file string, config *vm.LogConfig) BlockTraceResult {
- blockRlp, err := ioutil.ReadFile(file)
- if err != nil {
- return BlockTraceResult{Error: fmt.Sprintf("could not read file: %v", err)}
- }
- return api.TraceBlock(blockRlp, config)
-}
-
-// TraceBlockByNumber processes the block by canonical block number.
-func (api *PrivateDebugAPI) TraceBlockByNumber(blockNr rpc.BlockNumber, config *vm.LogConfig) BlockTraceResult {
- // Fetch the block that we aim to reprocess
- var block *types.Block
- switch blockNr {
- case rpc.PendingBlockNumber:
- // Pending block is only known by the miner
- block = api.eth.miner.PendingBlock()
- case rpc.LatestBlockNumber:
- block = api.eth.blockchain.CurrentBlock()
- default:
- block = api.eth.blockchain.GetBlockByNumber(uint64(blockNr))
- }
-
- if block == nil {
- return BlockTraceResult{Error: fmt.Sprintf("block #%d not found", blockNr)}
- }
-
- validated, logs, err := api.traceBlock(block, config)
- return BlockTraceResult{
- Validated: validated,
- StructLogs: ethapi.FormatLogs(logs),
- Error: formatError(err),
- }
-}
-
-// TraceBlockByHash processes the block by hash.
-func (api *PrivateDebugAPI) TraceBlockByHash(hash common.Hash, config *vm.LogConfig) BlockTraceResult {
- // Fetch the block that we aim to reprocess
- block := api.eth.BlockChain().GetBlockByHash(hash)
- if block == nil {
- return BlockTraceResult{Error: fmt.Sprintf("block #%x not found", hash)}
- }
-
- validated, logs, err := api.traceBlock(block, config)
- return BlockTraceResult{
- Validated: validated,
- StructLogs: ethapi.FormatLogs(logs),
- Error: formatError(err),
- }
-}
-
-// traceBlock processes the given block but does not save the state.
-func (api *PrivateDebugAPI) traceBlock(block *types.Block, logConfig *vm.LogConfig) (bool, []vm.StructLog, error) {
- // Validate and reprocess the block
- var (
- blockchain = api.eth.BlockChain()
- validator = blockchain.Validator()
- processor = blockchain.Processor()
- )
-
- structLogger := vm.NewStructLogger(logConfig)
-
- config := vm.Config{
- Debug: true,
- Tracer: structLogger,
- }
- if err := api.eth.engine.VerifyHeader(blockchain, block.Header(), true); err != nil {
- return false, structLogger.StructLogs(), err
- }
- statedb, err := blockchain.StateAt(blockchain.GetBlock(block.ParentHash(), block.NumberU64()-1).Root())
- if err != nil {
- switch err.(type) {
- case *trie.MissingNodeError:
- return false, structLogger.StructLogs(), fmt.Errorf("required historical state unavailable")
- default:
- return false, structLogger.StructLogs(), err
- }
- }
-
- receipts, _, usedGas, err := processor.Process(block, statedb, config)
- if err != nil {
- return false, structLogger.StructLogs(), err
- }
- if err := validator.ValidateState(block, blockchain.GetBlock(block.ParentHash(), block.NumberU64()-1), statedb, receipts, usedGas); err != nil {
- return false, structLogger.StructLogs(), err
- }
- return true, structLogger.StructLogs(), nil
-}
-
-// formatError formats a Go error into either an empty string or the data content
-// of the error itself.
-func formatError(err error) string {
- if err == nil {
- return ""
- }
- return err.Error()
-}
-
-type timeoutError struct{}
-
-func (t *timeoutError) Error() string {
- return "Execution time exceeded"
-}
-
-// TraceTransaction returns the structured logs created during the execution of EVM
-// and returns them as a JSON object.
-func (api *PrivateDebugAPI) TraceTransaction(ctx context.Context, txHash common.Hash, config *TraceArgs) (interface{}, error) {
- var tracer vm.Tracer
- if config != nil && config.Tracer != nil {
- timeout := defaultTraceTimeout
- if config.Timeout != nil {
- var err error
- if timeout, err = time.ParseDuration(*config.Timeout); err != nil {
- return nil, err
- }
- }
-
- var err error
- if tracer, err = ethapi.NewJavascriptTracer(*config.Tracer); err != nil {
- return nil, err
- }
-
- // Handle timeouts and RPC cancellations
- deadlineCtx, cancel := context.WithTimeout(ctx, timeout)
- go func() {
- <-deadlineCtx.Done()
- tracer.(*ethapi.JavascriptTracer).Stop(&timeoutError{})
- }()
- defer cancel()
- } else if config == nil {
- tracer = vm.NewStructLogger(nil)
- } else {
- tracer = vm.NewStructLogger(config.LogConfig)
- }
-
- // Retrieve the tx from the chain and the containing block
- tx, blockHash, _, txIndex := core.GetTransaction(api.eth.ChainDb(), txHash)
- if tx == nil {
- return nil, fmt.Errorf("transaction %x not found", txHash)
- }
- msg, context, statedb, err := api.computeTxEnv(blockHash, int(txIndex))
- if err != nil {
- switch err.(type) {
- case *trie.MissingNodeError:
- return nil, fmt.Errorf("required historical state unavailable")
- default:
- return nil, err
- }
- }
-
- // Run the transaction with tracing enabled.
- vmenv := vm.NewEVM(context, statedb, api.config, vm.Config{Debug: true, Tracer: tracer})
- ret, gas, failed, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(tx.Gas()))
- if err != nil {
- return nil, fmt.Errorf("tracing failed: %v", err)
- }
- switch tracer := tracer.(type) {
- case *vm.StructLogger:
- return ðapi.ExecutionResult{
- Gas: gas,
- Failed: failed,
- ReturnValue: fmt.Sprintf("%x", ret),
- StructLogs: ethapi.FormatLogs(tracer.StructLogs()),
- }, nil
- case *ethapi.JavascriptTracer:
- return tracer.GetResult()
- default:
- panic(fmt.Sprintf("bad tracer type %T", tracer))
- }
-}
-
-// computeTxEnv returns the execution environment of a certain transaction.
-func (api *PrivateDebugAPI) computeTxEnv(blockHash common.Hash, txIndex int) (core.Message, vm.Context, *state.StateDB, error) {
- // Create the parent state.
- block := api.eth.BlockChain().GetBlockByHash(blockHash)
- if block == nil {
- return nil, vm.Context{}, nil, fmt.Errorf("block %x not found", blockHash)
- }
- parent := api.eth.BlockChain().GetBlock(block.ParentHash(), block.NumberU64()-1)
- if parent == nil {
- return nil, vm.Context{}, nil, fmt.Errorf("block parent %x not found", block.ParentHash())
- }
- statedb, err := api.eth.BlockChain().StateAt(parent.Root())
- if err != nil {
- return nil, vm.Context{}, nil, err
- }
- txs := block.Transactions()
-
- // Recompute transactions up to the target index.
- signer := types.MakeSigner(api.config, block.Number())
- for idx, tx := range txs {
- // Assemble the transaction call message
- msg, _ := tx.AsMessage(signer)
- context := core.NewEVMContext(msg, block.Header(), api.eth.BlockChain(), nil)
- if idx == txIndex {
- return msg, context, statedb, nil
- }
-
- vmenv := vm.NewEVM(context, statedb, api.config, vm.Config{})
- gp := new(core.GasPool).AddGas(tx.Gas())
- _, _, _, err := core.ApplyMessage(vmenv, msg, gp)
- if err != nil {
- return nil, vm.Context{}, nil, fmt.Errorf("tx %x failed: %v", tx.Hash(), err)
- }
- statedb.DeleteSuicides()
- }
- return nil, vm.Context{}, nil, fmt.Errorf("tx index %d out of range for block %x", txIndex, blockHash)
-}
-
// Preimage is a debug API function that returns the preimage for a sha3 hash, if known.
func (api *PrivateDebugAPI) Preimage(ctx context.Context, hash common.Hash) (hexutil.Bytes, error) {
db := core.PreimageTable(api.eth.ChainDb())
@@ -617,7 +368,7 @@ type storageEntry struct {
// StorageRangeAt returns the storage at the given block height and transaction index.
func (api *PrivateDebugAPI) StorageRangeAt(ctx context.Context, blockHash common.Hash, txIndex int, contractAddress common.Address, keyStart hexutil.Bytes, maxResult int) (StorageRangeResult, error) {
- _, _, statedb, err := api.computeTxEnv(blockHash, txIndex)
+ _, _, statedb, err := api.computeTxEnv(blockHash, txIndex, 0)
if err != nil {
return StorageRangeResult{}, err
}
diff --git a/eth/api_tracer.go b/eth/api_tracer.go
new file mode 100644
index 000000000..0d0e2a73c
--- /dev/null
+++ b/eth/api_tracer.go
@@ -0,0 +1,727 @@
+// Copyright 2017 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 eth
+
+import (
+ "bytes"
+ "context"
+ "errors"
+ "fmt"
+ "io/ioutil"
+ "runtime"
+ "sync"
+ "sync/atomic"
+ "time"
+
+ "github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/common/hexutil"
+ "github.com/ethereum/go-ethereum/core"
+ "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/eth/tracers"
+ "github.com/ethereum/go-ethereum/ethdb"
+ "github.com/ethereum/go-ethereum/internal/ethapi"
+ "github.com/ethereum/go-ethereum/log"
+ "github.com/ethereum/go-ethereum/rlp"
+ "github.com/ethereum/go-ethereum/rpc"
+ "github.com/ethereum/go-ethereum/trie"
+)
+
+const (
+ // defaultTraceTimeout is the amount of time a single transaction can execute
+ // by default before being forcefully aborted.
+ defaultTraceTimeout = 5 * time.Second
+
+ // defaultTraceReexec is the number of blocks the tracer is willing to go back
+ // and reexecute to produce missing historical state necessary to run a specific
+ // trace.
+ defaultTraceReexec = uint64(128)
+)
+
+// TraceConfig holds extra parameters to trace functions.
+type TraceConfig struct {
+ *vm.LogConfig
+ Tracer *string
+ Timeout *string
+ Reexec *uint64
+}
+
+// txTraceResult is the result of a single transaction trace.
+type txTraceResult struct {
+ Result interface{} `json:"result,omitempty"` // Trace results produced by the tracer
+ Error string `json:"error,omitempty"` // Trace failure produced by the tracer
+}
+
+// blockTraceTask represents a single block trace task when an entire chain is
+// being traced.
+type blockTraceTask struct {
+ statedb *state.StateDB // Intermediate state prepped for tracing
+ block *types.Block // Block to trace the transactions from
+ results []*txTraceResult // Trace results procudes by the task
+}
+
+// blockTraceResult represets the results of tracing a single block when an entire
+// chain is being traced.
+type blockTraceResult struct {
+ Block hexutil.Uint64 `json:"block"` // Block number corresponding to this trace
+ Hash common.Hash `json:"hash"` // Block hash corresponding to this trace
+ Traces []*txTraceResult `json:"traces"` // Trace results produced by the task
+}
+
+// txTraceTask represents a single transaction trace task when an entire block
+// is being traced.
+type txTraceTask struct {
+ statedb *state.StateDB // Intermediate state prepped for tracing
+ index int // Transaction offset in the block
+}
+
+// ephemeralDatabase is a memory wrapper around a proper database, which acts as
+// an ephemeral write layer. This construct is used by the chain tracer to write
+// state tries for intermediate blocks without serializing to disk, but at the
+// same time to allow disk fallback for reads that do no hit the memory layer.
+type ephemeralDatabase struct {
+ diskdb ethdb.Database // Persistent disk database to fall back to with reads
+ memdb *ethdb.MemDatabase // Ephemeral memory database for primary reads and writes
+}
+
+func (db *ephemeralDatabase) Put(key []byte, value []byte) error { return db.memdb.Put(key, value) }
+func (db *ephemeralDatabase) Delete(key []byte) error { return errors.New("delete not supported") }
+func (db *ephemeralDatabase) Close() { db.memdb.Close() }
+func (db *ephemeralDatabase) NewBatch() ethdb.Batch {
+ return db.memdb.NewBatch()
+}
+func (db *ephemeralDatabase) Has(key []byte) (bool, error) {
+ if has, _ := db.memdb.Has(key); has {
+ return has, nil
+ }
+ return db.diskdb.Has(key)
+}
+func (db *ephemeralDatabase) Get(key []byte) ([]byte, error) {
+ if blob, _ := db.memdb.Get(key); blob != nil {
+ return blob, nil
+ }
+ return db.diskdb.Get(key)
+}
+
+// Prune does a state sync into a new memory write layer and replaces the old one.
+// This allows us to discard entries that are no longer referenced from the current
+// state.
+func (db *ephemeralDatabase) Prune(root common.Hash) {
+ // Pull the still relevant state data into memory
+ sync := state.NewStateSync(root, db.diskdb)
+ for sync.Pending() > 0 {
+ hash := sync.Missing(1)[0]
+
+ // Move the next trie node from the memory layer into a sync struct
+ node, err := db.memdb.Get(hash[:])
+ if err != nil {
+ panic(err) // memdb must have the data
+ }
+ if _, _, err := sync.Process([]trie.SyncResult{{Hash: hash, Data: node}}); err != nil {
+ panic(err) // it's not possible to fail processing a node
+ }
+ }
+ // Discard the old memory layer and write a new one
+ db.memdb, _ = ethdb.NewMemDatabaseWithCap(db.memdb.Len())
+ if _, err := sync.Commit(db); err != nil {
+ panic(err) // writing into a memdb cannot fail
+ }
+}
+
+// TraceChain returns the structured logs created during the execution of EVM
+// between two blocks (excluding start) and returns them as a JSON object.
+func (api *PrivateDebugAPI) TraceChain(ctx context.Context, start, end rpc.BlockNumber, config *TraceConfig) (*rpc.Subscription, error) {
+ // Fetch the block interval that we want to trace
+ var from, to *types.Block
+
+ switch start {
+ case rpc.PendingBlockNumber:
+ from = api.eth.miner.PendingBlock()
+ case rpc.LatestBlockNumber:
+ from = api.eth.blockchain.CurrentBlock()
+ default:
+ from = api.eth.blockchain.GetBlockByNumber(uint64(start))
+ }
+ switch end {
+ case rpc.PendingBlockNumber:
+ to = api.eth.miner.PendingBlock()
+ case rpc.LatestBlockNumber:
+ to = api.eth.blockchain.CurrentBlock()
+ default:
+ to = api.eth.blockchain.GetBlockByNumber(uint64(end))
+ }
+ // Trace the chain if we've found all our blocks
+ if from == nil {
+ return nil, fmt.Errorf("starting block #%d not found", start)
+ }
+ if to == nil {
+ return nil, fmt.Errorf("end block #%d not found", end)
+ }
+ return api.traceChain(ctx, from, to, config)
+}
+
+// traceChain configures a new tracer according to the provided configuration, and
+// executes all the transactions contained within. The return value will be one item
+// per transaction, dependent on the requestd tracer.
+func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Block, config *TraceConfig) (*rpc.Subscription, error) {
+ // Tracing a chain is a **long** operation, only do with subscriptions
+ notifier, supported := rpc.NotifierFromContext(ctx)
+ if !supported {
+ return &rpc.Subscription{}, rpc.ErrNotificationsUnsupported
+ }
+ sub := notifier.CreateSubscription()
+
+ // Ensure we have a valid starting state before doing any work
+ origin := start.NumberU64()
+
+ memdb, _ := ethdb.NewMemDatabase()
+ db := &ephemeralDatabase{
+ diskdb: api.eth.ChainDb(),
+ memdb: memdb,
+ }
+ if number := start.NumberU64(); number > 0 {
+ start = api.eth.blockchain.GetBlock(start.ParentHash(), start.NumberU64()-1)
+ if start == nil {
+ return nil, fmt.Errorf("parent block #%d not found", number-1)
+ }
+ }
+ statedb, err := state.New(start.Root(), state.NewDatabase(db))
+ if err != nil {
+ // If the starting state is missing, allow some number of blocks to be reexecuted
+ reexec := defaultTraceReexec
+ if config.Reexec != nil {
+ reexec = *config.Reexec
+ }
+ // Find the most recent block that has the state available
+ for i := uint64(0); i < reexec; i++ {
+ start = api.eth.blockchain.GetBlock(start.ParentHash(), start.NumberU64()-1)
+ if start == nil {
+ break
+ }
+ if statedb, err = state.New(start.Root(), state.NewDatabase(db)); err == nil {
+ break
+ }
+ }
+ // If we still don't have the state available, bail out
+ if err != nil {
+ switch err.(type) {
+ case *trie.MissingNodeError:
+ return nil, errors.New("required historical state unavailable")
+ default:
+ return nil, err
+ }
+ }
+ }
+ // Execute all the transaction contained within the chain concurrently for each block
+ blocks := int(end.NumberU64() - origin)
+
+ threads := runtime.NumCPU()
+ if threads > blocks {
+ threads = blocks
+ }
+ var (
+ pend = new(sync.WaitGroup)
+ tasks = make(chan *blockTraceTask, threads)
+ results = make(chan *blockTraceTask, threads)
+ )
+ for th := 0; th < threads; th++ {
+ pend.Add(1)
+ go func() {
+ defer pend.Done()
+
+ // Fetch and execute the next block trace tasks
+ for task := range tasks {
+ signer := types.MakeSigner(api.config, task.block.Number())
+
+ // Trace all the transactions contained within
+ for i, tx := range task.block.Transactions() {
+ msg, _ := tx.AsMessage(signer)
+ vmctx := core.NewEVMContext(msg, task.block.Header(), api.eth.blockchain, nil)
+
+ res, err := api.traceTx(ctx, msg, vmctx, task.statedb, config)
+ if err != nil {
+ task.results[i] = &txTraceResult{Error: err.Error()}
+ log.Warn("Tracing failed", "err", err)
+ break
+ }
+ task.statedb.DeleteSuicides()
+ task.results[i] = &txTraceResult{Result: res}
+ }
+ // Stream the result back to the user or abort on teardown
+ select {
+ case results <- task:
+ case <-notifier.Closed():
+ return
+ }
+ }
+ }()
+ }
+ // Start a goroutine to feed all the blocks into the tracers
+ begin := time.Now()
+ complete := start.NumberU64()
+
+ go func() {
+ var (
+ logged time.Time
+ number uint64
+ traced uint64
+ failed error
+ )
+ // Ensure everything is properly cleaned up on any exit path
+ defer func() {
+ close(tasks)
+ pend.Wait()
+
+ switch {
+ case failed != nil:
+ log.Warn("Chain tracing failed", "start", start.NumberU64(), "end", end.NumberU64(), "transactions", traced, "elapsed", time.Since(begin), "err", failed)
+ case number < end.NumberU64():
+ log.Warn("Chain tracing aborted", "start", start.NumberU64(), "end", end.NumberU64(), "abort", number, "transactions", traced, "elapsed", time.Since(begin))
+ default:
+ log.Info("Chain tracing finished", "start", start.NumberU64(), "end", end.NumberU64(), "transactions", traced, "elapsed", time.Since(begin))
+ }
+ close(results)
+ }()
+ // Feed all the blocks both into the tracer, as well as fast process concurrently
+ for number = start.NumberU64() + 1; number <= end.NumberU64(); number++ {
+ // Stop tracing if interruption was requested
+ select {
+ case <-notifier.Closed():
+ return
+ default:
+ }
+ // Print progress logs if long enough time elapsed
+ if time.Since(logged) > 8*time.Second {
+ if number > origin {
+ log.Info("Tracing chain segment", "start", origin, "end", end.NumberU64(), "current", number, "transactions", traced, "elapsed", time.Since(begin))
+ } else {
+ log.Info("Preparing state for chain trace", "block", number, "start", origin, "elapsed", time.Since(begin))
+ }
+ logged = time.Now()
+ }
+ // Retrieve the next block to trace
+ block := api.eth.blockchain.GetBlockByNumber(number)
+ if block == nil {
+ failed = fmt.Errorf("block #%d not found", number)
+ break
+ }
+ // Send the block over to the concurrent tracers (if not in the fast-forward phase)
+ if number > origin {
+ txs := block.Transactions()
+
+ select {
+ case tasks <- &blockTraceTask{statedb: statedb.Copy(), block: block, results: make([]*txTraceResult, len(txs))}:
+ case <-notifier.Closed():
+ return
+ }
+ traced += uint64(len(txs))
+ } else {
+ atomic.StoreUint64(&complete, number)
+ }
+ // Generate the next state snapshot fast without tracing
+ _, _, _, err := api.eth.blockchain.Processor().Process(block, statedb, vm.Config{})
+ if err != nil {
+ failed = err
+ break
+ }
+ // Finalize the state so any modifications are written to the trie
+ root, err := statedb.CommitTo(db, true)
+ if err != nil {
+ failed = err
+ break
+ }
+ if err := statedb.Reset(root); err != nil {
+ failed = err
+ break
+ }
+ // After every N blocks, prune the database to only retain relevant data
+ if (number-start.NumberU64())%4096 == 0 {
+ // Wait until currently pending trace jobs finish
+ for atomic.LoadUint64(&complete) != number {
+ select {
+ case <-time.After(100 * time.Millisecond):
+ case <-notifier.Closed():
+ return
+ }
+ }
+ // No more concurrent access at this point, prune the database
+ var (
+ nodes = db.memdb.Len()
+ start = time.Now()
+ )
+ db.Prune(root)
+ log.Info("Pruned tracer state entries", "deleted", nodes-db.memdb.Len(), "left", db.memdb.Len(), "elapsed", time.Since(start))
+
+ statedb, _ = state.New(root, state.NewDatabase(db))
+ }
+ }
+ }()
+
+ // Keep reading the trace results and stream the to the user
+ go func() {
+ var (
+ done = make(map[uint64]*blockTraceResult)
+ next = origin + 1
+ )
+ for res := range results {
+ // Queue up next received result
+ result := &blockTraceResult{
+ Block: hexutil.Uint64(res.block.NumberU64()),
+ Hash: res.block.Hash(),
+ Traces: res.results,
+ }
+ done[uint64(result.Block)] = result
+
+ // 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() {
+ notifier.Notify(sub.ID, result)
+ }
+ atomic.StoreUint64(&complete, next)
+ delete(done, next)
+ next++
+ }
+ }
+ }()
+ return sub, nil
+}
+
+// TraceBlockByNumber returns the structured logs created during the execution of
+// EVM and returns them as a JSON object.
+func (api *PrivateDebugAPI) TraceBlockByNumber(ctx context.Context, number rpc.BlockNumber, config *TraceConfig) ([]*txTraceResult, error) {
+ // Fetch the block that we want to trace
+ var block *types.Block
+
+ switch number {
+ case rpc.PendingBlockNumber:
+ block = api.eth.miner.PendingBlock()
+ case rpc.LatestBlockNumber:
+ block = api.eth.blockchain.CurrentBlock()
+ default:
+ block = api.eth.blockchain.GetBlockByNumber(uint64(number))
+ }
+ // Trace the block if it was found
+ if block == nil {
+ return nil, fmt.Errorf("block #%d not found", number)
+ }
+ return api.traceBlock(ctx, block, config)
+}
+
+// TraceBlockByHash returns the structured logs created during the execution of
+// EVM and returns them as a JSON object.
+func (api *PrivateDebugAPI) TraceBlockByHash(ctx context.Context, hash common.Hash, config *TraceConfig) ([]*txTraceResult, error) {
+ block := api.eth.blockchain.GetBlockByHash(hash)
+ if block == nil {
+ return nil, fmt.Errorf("block #%x not found", hash)
+ }
+ return api.traceBlock(ctx, block, config)
+}
+
+// TraceBlock returns the structured logs created during the execution of EVM
+// and returns them as a JSON object.
+func (api *PrivateDebugAPI) TraceBlock(ctx context.Context, blob []byte, config *TraceConfig) ([]*txTraceResult, error) {
+ block := new(types.Block)
+ if err := rlp.Decode(bytes.NewReader(blob), block); err != nil {
+ return nil, fmt.Errorf("could not decode block: %v", err)
+ }
+ return api.traceBlock(ctx, block, config)
+}
+
+// TraceBlockFromFile returns the structured logs created during the execution of
+// EVM and returns them as a JSON object.
+func (api *PrivateDebugAPI) TraceBlockFromFile(ctx context.Context, file string, config *TraceConfig) ([]*txTraceResult, error) {
+ blob, err := ioutil.ReadFile(file)
+ if err != nil {
+ return nil, fmt.Errorf("could not read file: %v", err)
+ }
+ return api.TraceBlock(ctx, blob, config)
+}
+
+// traceBlock configures a new tracer according to the provided configuration, and
+// executes all the transactions contained within. The return value will be one item
+// per transaction, dependent on the requestd tracer.
+func (api *PrivateDebugAPI) traceBlock(ctx context.Context, block *types.Block, config *TraceConfig) ([]*txTraceResult, error) {
+ // Create the parent state database
+ if err := api.eth.engine.VerifyHeader(api.eth.blockchain, block.Header(), true); err != nil {
+ return nil, err
+ }
+ parent := api.eth.blockchain.GetBlock(block.ParentHash(), block.NumberU64()-1)
+ if parent == nil {
+ return nil, fmt.Errorf("parent %x not found", block.ParentHash())
+ }
+ reexec := defaultTraceReexec
+ if config.Reexec != nil {
+ reexec = *config.Reexec
+ }
+ statedb, err := api.computeStateDB(parent, reexec)
+ if err != nil {
+ return nil, err
+ }
+ // Execute all the transaction contained within the block concurrently
+ var (
+ signer = types.MakeSigner(api.config, block.Number())
+
+ txs = block.Transactions()
+ results = make([]*txTraceResult, len(txs))
+
+ pend = new(sync.WaitGroup)
+ jobs = make(chan *txTraceTask, len(txs))
+ )
+ threads := runtime.NumCPU()
+ if threads > len(txs) {
+ threads = len(txs)
+ }
+ for th := 0; th < threads; th++ {
+ pend.Add(1)
+ go func() {
+ defer pend.Done()
+
+ // Fetch and execute the next transaction trace tasks
+ for task := range jobs {
+ msg, _ := txs[task.index].AsMessage(signer)
+ vmctx := core.NewEVMContext(msg, block.Header(), api.eth.blockchain, nil)
+
+ res, err := api.traceTx(ctx, msg, vmctx, task.statedb, config)
+ if err != nil {
+ results[task.index] = &txTraceResult{Error: err.Error()}
+ continue
+ }
+ results[task.index] = &txTraceResult{Result: res}
+ }
+ }()
+ }
+ // Feed the transactions into the tracers and return
+ var failed error
+ for i, tx := range txs {
+ // Send the trace task over for execution
+ jobs <- &txTraceTask{statedb: statedb.Copy(), index: i}
+
+ // Generate the next state snapshot fast without tracing
+ msg, _ := tx.AsMessage(signer)
+ vmctx := core.NewEVMContext(msg, block.Header(), api.eth.blockchain, nil)
+
+ vmenv := vm.NewEVM(vmctx, statedb, api.config, vm.Config{})
+ if _, _, _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(msg.Gas())); err != nil {
+ failed = err
+ break
+ }
+ // Finalize the state so any modifications are written to the trie
+ statedb.Finalise(true)
+ }
+ close(jobs)
+ pend.Wait()
+
+ // If execution failed in between, abort
+ if failed != nil {
+ return nil, failed
+ }
+ return results, nil
+}
+
+// computeStateDB retrieves the state database associated with a certain block.
+// If no state is locally available for the given block, a number of blocks are
+// attempted to be reexecuted to generate the desired state.
+func (api *PrivateDebugAPI) computeStateDB(block *types.Block, reexec uint64) (*state.StateDB, error) {
+ // If we have the state fully available, use that
+ statedb, err := api.eth.blockchain.StateAt(block.Root())
+ if err == nil {
+ return statedb, nil
+ }
+ // Otherwise try to reexec blocks until we find a state or reach our limit
+ origin := block.NumberU64()
+
+ memdb, _ := ethdb.NewMemDatabase()
+ db := &ephemeralDatabase{
+ diskdb: api.eth.ChainDb(),
+ memdb: memdb,
+ }
+ for i := uint64(0); i < reexec; i++ {
+ block = api.eth.blockchain.GetBlock(block.ParentHash(), block.NumberU64()-1)
+ if block == nil {
+ break
+ }
+ if statedb, err = state.New(block.Root(), state.NewDatabase(db)); err == nil {
+ break
+ }
+ }
+ if err != nil {
+ switch err.(type) {
+ case *trie.MissingNodeError:
+ return nil, errors.New("required historical state unavailable")
+ default:
+ return nil, err
+ }
+ }
+ // State was available at historical point, regenerate
+ var (
+ start = time.Now()
+ logged time.Time
+ )
+ for block.NumberU64() < origin {
+ // Print progress logs if long enough time elapsed
+ if time.Since(logged) > 8*time.Second {
+ log.Info("Regenerating historical state", "block", block.NumberU64()+1, "target", origin, "elapsed", time.Since(start))
+ logged = time.Now()
+ }
+ // Retrieve the next block to regenerate and process it
+ if block = api.eth.blockchain.GetBlockByNumber(block.NumberU64() + 1); block == nil {
+ return nil, fmt.Errorf("block #%d not found", block.NumberU64()+1)
+ }
+ _, _, _, err := api.eth.blockchain.Processor().Process(block, statedb, vm.Config{})
+ if err != nil {
+ return nil, err
+ }
+ // Finalize the state so any modifications are written to the trie
+ root, err := statedb.CommitTo(db, true)
+ if err != nil {
+ return nil, err
+ }
+ if err := statedb.Reset(root); err != nil {
+ return nil, err
+ }
+ // After every N blocks, prune the database to only retain relevant data
+ if block.NumberU64()%4096 == 0 || block.NumberU64() == origin {
+ var (
+ nodes = db.memdb.Len()
+ begin = time.Now()
+ )
+ db.Prune(root)
+ log.Info("Pruned tracer state entries", "deleted", nodes-db.memdb.Len(), "left", db.memdb.Len(), "elapsed", time.Since(begin))
+
+ statedb, _ = state.New(root, state.NewDatabase(db))
+ }
+ }
+ log.Info("Historical state regenerated", "block", block.NumberU64(), "elapsed", time.Since(start))
+ return statedb, nil
+}
+
+// TraceTransaction returns the structured logs created during the execution of EVM
+// and returns them as a JSON object.
+func (api *PrivateDebugAPI) TraceTransaction(ctx context.Context, hash common.Hash, config *TraceConfig) (interface{}, error) {
+ // Retrieve the transaction and assemble its EVM context
+ tx, blockHash, _, index := core.GetTransaction(api.eth.ChainDb(), hash)
+ if tx == nil {
+ return nil, fmt.Errorf("transaction %x not found", hash)
+ }
+ reexec := defaultTraceReexec
+ if config.Reexec != nil {
+ reexec = *config.Reexec
+ }
+ msg, vmctx, statedb, err := api.computeTxEnv(blockHash, int(index), reexec)
+ if err != nil {
+ return nil, err
+ }
+ // Trace the transaction and return
+ return api.traceTx(ctx, msg, vmctx, statedb, config)
+}
+
+// traceTx configures a new tracer according to the provided configuration, and
+// executes the given message in the provided environment. The return value will
+// be tracer dependent.
+func (api *PrivateDebugAPI) traceTx(ctx context.Context, message core.Message, vmctx vm.Context, statedb *state.StateDB, config *TraceConfig) (interface{}, error) {
+ // Assemble the structured logger or the JavaScript tracer
+ var (
+ tracer vm.Tracer
+ err error
+ )
+ switch {
+ case config != nil && config.Tracer != nil:
+ // Define a meaningful timeout of a single transaction trace
+ timeout := defaultTraceTimeout
+ if config.Timeout != nil {
+ if timeout, err = time.ParseDuration(*config.Timeout); err != nil {
+ return nil, err
+ }
+ }
+ // Constuct the JavaScript tracer to execute with
+ if tracer, err = tracers.New(*config.Tracer); err != nil {
+ return nil, err
+ }
+ // Handle timeouts and RPC cancellations
+ deadlineCtx, cancel := context.WithTimeout(ctx, timeout)
+ go func() {
+ <-deadlineCtx.Done()
+ tracer.(*tracers.Tracer).Stop(errors.New("execution timeout"))
+ }()
+ defer cancel()
+
+ case config == nil:
+ tracer = vm.NewStructLogger(nil)
+
+ default:
+ tracer = vm.NewStructLogger(config.LogConfig)
+ }
+ // Run the transaction with tracing enabled.
+ vmenv := vm.NewEVM(vmctx, statedb, api.config, vm.Config{Debug: true, Tracer: tracer})
+
+ ret, gas, failed, err := core.ApplyMessage(vmenv, message, new(core.GasPool).AddGas(message.Gas()))
+ if err != nil {
+ return nil, fmt.Errorf("tracing failed: %v", err)
+ }
+ // Depending on the tracer type, format and return the output
+ switch tracer := tracer.(type) {
+ case *vm.StructLogger:
+ return ðapi.ExecutionResult{
+ Gas: gas,
+ Failed: failed,
+ ReturnValue: fmt.Sprintf("%x", ret),
+ StructLogs: ethapi.FormatLogs(tracer.StructLogs()),
+ }, nil
+
+ case *tracers.Tracer:
+ return tracer.GetResult()
+
+ default:
+ panic(fmt.Sprintf("bad tracer type %T", tracer))
+ }
+}
+
+// computeTxEnv returns the execution environment of a certain transaction.
+func (api *PrivateDebugAPI) computeTxEnv(blockHash common.Hash, txIndex int, reexec uint64) (core.Message, vm.Context, *state.StateDB, error) {
+ // Create the parent state database
+ block := api.eth.blockchain.GetBlockByHash(blockHash)
+ if block == nil {
+ return nil, vm.Context{}, nil, fmt.Errorf("block %x not found", blockHash)
+ }
+ parent := api.eth.blockchain.GetBlock(block.ParentHash(), block.NumberU64()-1)
+ if parent == nil {
+ return nil, vm.Context{}, nil, fmt.Errorf("parent %x not found", block.ParentHash())
+ }
+ statedb, err := api.computeStateDB(parent, reexec)
+ if err != nil {
+ return nil, vm.Context{}, nil, err
+ }
+ // Recompute transactions up to the target index.
+ signer := types.MakeSigner(api.config, block.Number())
+
+ for idx, tx := range block.Transactions() {
+ // Assemble the transaction call message and return if the requested offset
+ msg, _ := tx.AsMessage(signer)
+ context := core.NewEVMContext(msg, block.Header(), api.eth.blockchain, nil)
+ if idx == txIndex {
+ return msg, context, statedb, nil
+ }
+ // Not yet the searched for transaction, execute on top of the current state
+ vmenv := vm.NewEVM(context, statedb, api.config, vm.Config{})
+ if _, _, _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(tx.Gas())); err != nil {
+ return nil, vm.Context{}, nil, fmt.Errorf("tx %x failed: %v", tx.Hash(), err)
+ }
+ statedb.DeleteSuicides()
+ }
+ return nil, vm.Context{}, nil, fmt.Errorf("tx index %d out of range for block %x", txIndex, blockHash)
+}
diff --git a/eth/handler.go b/eth/handler.go
index bec5126dc..cd66662d8 100644
--- a/eth/handler.go
+++ b/eth/handler.go
@@ -747,10 +747,11 @@ func (self *ProtocolManager) txBroadcastLoop() {
// EthNodeInfo represents a short summary of the Ethereum sub-protocol metadata known
// about the host peer.
type EthNodeInfo struct {
- Network uint64 `json:"network"` // Ethereum network ID (1=Frontier, 2=Morden, Ropsten=3)
- Difficulty *big.Int `json:"difficulty"` // Total difficulty of the host's blockchain
- Genesis common.Hash `json:"genesis"` // SHA3 hash of the host's genesis block
- Head common.Hash `json:"head"` // SHA3 hash of the host's best owned block
+ Network uint64 `json:"network"` // Ethereum network ID (1=Frontier, 2=Morden, Ropsten=3)
+ Difficulty *big.Int `json:"difficulty"` // Total difficulty of the host's blockchain
+ Genesis common.Hash `json:"genesis"` // SHA3 hash of the host's genesis block
+ Config *params.ChainConfig `json:"config"` // Chain configuration for the fork rules
+ Head common.Hash `json:"head"` // SHA3 hash of the host's best owned block
}
// NodeInfo retrieves some protocol metadata about the running host node.
@@ -760,6 +761,7 @@ func (self *ProtocolManager) NodeInfo() *EthNodeInfo {
Network: self.networkId,
Difficulty: self.blockchain.GetTd(currentBlock.Hash(), currentBlock.NumberU64()),
Genesis: self.blockchain.Genesis().Hash(),
+ Config: self.blockchain.Config(),
Head: currentBlock.Hash(),
}
}
diff --git a/eth/tracers/internal/tracers/4byte_tracer.js b/eth/tracers/internal/tracers/4byte_tracer.js
new file mode 100644
index 000000000..0a6b088cc
--- /dev/null
+++ b/eth/tracers/internal/tracers/4byte_tracer.js
@@ -0,0 +1,86 @@
+// Copyright 2017 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/>.
+
+// 4byteTracer searches for 4byte-identifiers, and collects them for post-processing.
+// It collects the methods identifiers along with the size of the supplied data, so
+// a reversed signature can be matched against the size of the data.
+//
+// Example:
+// > debug.traceTransaction( "0x214e597e35da083692f5386141e69f47e973b2c56e7a8073b1ea08fd7571e9de", {tracer: "4byteTracer"})
+// {
+// 0x27dc297e-128: 1,
+// 0x38cc4831-0: 2,
+// 0x524f3889-96: 1,
+// 0xadf59f99-288: 1,
+// 0xc281d19e-0: 1
+// }
+{
+ // ids aggregates the 4byte ids found.
+ ids : {},
+
+ // callType returns 'false' for non-calls, or the peek-index for the first param
+ // after 'value', i.e. meminstart.
+ callType: function(opstr){
+ switch(opstr){
+ case "CALL": case "CALLCODE":
+ // gas, addr, val, memin, meminsz, memout, memoutsz
+ return 3; // stack ptr to memin
+
+ case "DELEGATECALL": case "STATICCALL":
+ // gas, addr, memin, meminsz, memout, memoutsz
+ return 2; // stack ptr to memin
+ }
+ return false;
+ },
+
+ // store save the given indentifier and datasize.
+ store: function(id, size){
+ var key = "" + toHex(id) + "-" + size;
+ this.ids[key] = this.ids[key] + 1 || 1;
+ },
+
+ // step is invoked for every opcode that the VM executes.
+ step: function(log, db) {
+ // Skip any opcodes that are not internal calls
+ var ct = this.callType(log.op.toString());
+ if (!ct) {
+ return;
+ }
+ // Skip any pre-compile invocations, those are just fancy opcodes
+ if (isPrecompiled(toAddress(log.stack.peek(1)))) {
+ return;
+ }
+ // Gather internal call details
+ var inSz = log.stack.peek(ct + 1).valueOf();
+ if (inSz >= 4) {
+ var inOff = log.stack.peek(ct).valueOf();
+ this.store(log.memory.slice(inOff, inOff + 4), inSz-4);
+ }
+ },
+
+ // fault is invoked when the actual execution of an opcode fails.
+ fault: function(log, db) { },
+
+ // result is invoked when all the opcodes have been iterated over and returns
+ // the final result of the tracing.
+ result: function(ctx) {
+ // Save the outer calldata also
+ if (ctx.input.length > 4) {
+ this.store(slice(ctx.input, 0, 4), ctx.input.length-4)
+ }
+ return this.ids;
+ },
+}
diff --git a/eth/tracers/internal/tracers/assets.go b/eth/tracers/internal/tracers/assets.go
new file mode 100644
index 000000000..cb0421008
--- /dev/null
+++ b/eth/tracers/internal/tracers/assets.go
@@ -0,0 +1,350 @@
+// Code generated by go-bindata.
+// sources:
+// 4byte_tracer.js
+// call_tracer.js
+// evmdis_tracer.js
+// noop_tracer.js
+// opcount_tracer.js
+// prestate_tracer.js
+// DO NOT EDIT!
+
+package tracers
+
+import (
+ "bytes"
+ "compress/gzip"
+ "fmt"
+ "io"
+ "io/ioutil"
+ "os"
+ "path/filepath"
+ "strings"
+ "time"
+)
+
+func bindataRead(data []byte, name string) ([]byte, error) {
+ gz, err := gzip.NewReader(bytes.NewBuffer(data))
+ if err != nil {
+ return nil, fmt.Errorf("Read %q: %v", name, err)
+ }
+
+ var buf bytes.Buffer
+ _, err = io.Copy(&buf, gz)
+ clErr := gz.Close()
+
+ if err != nil {
+ return nil, fmt.Errorf("Read %q: %v", name, err)
+ }
+ if clErr != nil {
+ return nil, err
+ }
+
+ return buf.Bytes(), nil
+}
+
+type asset struct {
+ bytes []byte
+ info os.FileInfo
+}
+
+type bindataFileInfo struct {
+ name string
+ size int64
+ mode os.FileMode
+ modTime time.Time
+}
+
+func (fi bindataFileInfo) Name() string {
+ return fi.name
+}
+func (fi bindataFileInfo) Size() int64 {
+ return fi.size
+}
+func (fi bindataFileInfo) Mode() os.FileMode {
+ return fi.mode
+}
+func (fi bindataFileInfo) ModTime() time.Time {
+ return fi.modTime
+}
+func (fi bindataFileInfo) IsDir() bool {
+ return false
+}
+func (fi bindataFileInfo) Sys() interface{} {
+ return nil
+}
+
+var __4byte_tracerJs = 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+
+func _4byte_tracerJsBytes() ([]byte, error) {
+ return bindataRead(
+ __4byte_tracerJs,
+ "4byte_tracer.js",
+ )
+}
+
+func _4byte_tracerJs() (*asset, error) {
+ bytes, err := _4byte_tracerJsBytes()
+ if err != nil {
+ return nil, err
+ }
+
+ info := bindataFileInfo{name: "4byte_tracer.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)}
+ a := &asset{bytes: bytes, info: info}
+ return a, nil
+}
+
+var _call_tracerJs = 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+
+func call_tracerJsBytes() ([]byte, error) {
+ return bindataRead(
+ _call_tracerJs,
+ "call_tracer.js",
+ )
+}
+
+func call_tracerJs() (*asset, error) {
+ bytes, err := call_tracerJsBytes()
+ if err != nil {
+ return nil, err
+ }
+
+ info := bindataFileInfo{name: "call_tracer.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)}
+ a := &asset{bytes: bytes, info: info}
+ return a, nil
+}
+
+var _evmdis_tracerJs = 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+
+func evmdis_tracerJsBytes() ([]byte, error) {
+ return bindataRead(
+ _evmdis_tracerJs,
+ "evmdis_tracer.js",
+ )
+}
+
+func evmdis_tracerJs() (*asset, error) {
+ bytes, err := evmdis_tracerJsBytes()
+ if err != nil {
+ return nil, err
+ }
+
+ info := bindataFileInfo{name: "evmdis_tracer.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)}
+ a := &asset{bytes: bytes, info: info}
+ return a, nil
+}
+
+var _noop_tracerJs = []byte("\x1f\x8b\x08\x00\x00\x00\x00\x00\x00\xff\x8c\x93\x4f\x6f\xdb\x46\x10\xc5\xcf\xe6\xa7\x78\xc7\x04\x50\xc5\xfe\x39\x14\x70\x8b\x02\xac\x61\x27\x2a\x1c\xd9\x90\xe8\x06\x3e\x0e\xc9\xa1\xb8\xe9\x6a\x87\x9d\x9d\x95\x22\x04\xf9\xee\xc5\x92\x52\x13\x14\x69\x9b\x9b\xb0\xd2\xfb\xbd\x37\xf3\x46\x65\x89\x1b\x19\x4f\xea\x76\x83\xe1\xfb\x6f\xbf\xfb\x11\xf5\xc0\xd8\xc9\x37\x6c\x03\x2b\xa7\x3d\xaa\x64\x83\x68\x2c\xca\x12\xf5\xe0\x22\x7a\xe7\x19\x2e\x62\x24\x35\x48\x0f\xfb\xc7\xef\xbd\x6b\x94\xf4\xb4\x2c\xca\x72\xd6\x7c\xf1\xeb\x4c\xe8\x95\x19\x51\x7a\x3b\x92\xf2\x35\x4e\x92\xd0\x52\x80\x72\xe7\xa2\xa9\x6b\x92\x31\x9c\x81\x42\x57\x8a\x62\x2f\x9d\xeb\x4f\x19\xe9\x0c\x29\x74\xac\x93\xb5\xb1\xee\xe3\x25\xc7\xab\xf5\x13\xee\x39\x46\x56\xbc\xe2\xc0\x4a\x1e\x8f\xa9\xf1\xae\xc5\xbd\x6b\x39\x44\x06\x45\x8c\xf9\x25\x0e\xdc\xa1\x99\x70\x59\x78\x97\xa3\x6c\xcf\x51\x70\x27\x29\x74\x64\x4e\xc2\x02\xec\x72\x72\x1c\x58\xa3\x93\x80\x1f\x2e\x56\x67\xe0\x02\xa2\x19\xf2\x82\x2c\x0f\xa0\x90\x31\xeb\x5e\x82\xc2\x09\x9e\xec\x93\xf4\x2b\x16\xf2\x69\xee\x0e\x2e\x4c\x36\x83\x8c\x0c\x1b\xc8\xf2\xd4\x47\xe7\x3d\x1a\x46\x8a\xdc\x27\xbf\xc8\xb4\x26\x19\xde\xae\xea\xd7\x0f\x4f\x35\xaa\xf5\x33\xde\x56\x9b\x4d\xb5\xae\x9f\x7f\xc2\xd1\xd9\x20\xc9\xc0\x07\x9e\x51\x6e\x3f\x7a\xc7\x1d\x8e\xa4\x4a\xc1\x4e\x90\x3e\x13\xde\xdc\x6e\x6e\x5e\x57\xeb\xba\xfa\x75\x75\xbf\xaa\x9f\x21\x8a\xbb\x55\xbd\xbe\xdd\x6e\x71\xf7\xb0\x41\x85\xc7\x6a\x53\xaf\x6e\x9e\xee\xab\x0d\x1e\x9f\x36\x8f\x0f\xdb\xdb\x25\xb6\x9c\x53\x71\xd6\xff\xff\xce\xfb\xa9\x3d\x65\x74\x6c\xe4\x7c\xbc\x6c\xe2\x59\x12\xe2\x20\xc9\x77\x18\xe8\xc0\x50\x6e\xd9\x1d\xb8\x03\xa1\x95\xf1\xf4\xd5\xa5\x66\x16\x79\x09\xbb\x69\xe6\x7f\x3d\x48\xac\x7a\x04\xb1\x05\x22\x33\x7e\x1e\xcc\xc6\xeb\xb2\x3c\x1e\x8f\xcb\x5d\x48\x4b\xd1\x5d\xe9\x67\x5c\x2c\x7f\x59\x16\x99\x19\x44\xc6\x5a\xa9\x65\xcd\xe5\xbc\x4b\xd1\x26\x76\x43\xca\x8d\x04\x46\x23\xce\xb3\x8e\xb9\x65\xb4\xd2\xe5\x01\xfe\x4c\x4e\xb9\x43\xaf\xb2\x07\xe1\x37\x3a\xd0\xb6\x55\x37\x5a\xc6\x49\xf3\x8e\x5b\x83\xc9\x5c\x21\x35\x7e\x3a\x47\x82\x29\x85\x48\x6d\xbe\x9b\xfc\xb9\x65\x5d\x16\x1f\x8a\xab\xb2\x44\x34\x1e\xb3\xb7\x0b\x07\xf9\x23\x73\x45\x73\x9f\x7a\x82\x8c\x93\xe3\x74\x19\x39\xd4\xef\x6f\xc0\xef\xb9\x4d\xc6\x71\x59\x5c\x65\xdd\x35\xfa\x14\x26\xe8\x0b\x2f\xbb\x05\xba\xe6\x25\x3e\xe0\xe3\xa2\x98\xc8\x3d\x25\x6f\x9f\xa3\x8f\xc3\xf9\x4c\xa8\xb5\x44\xfe\x4c\xcb\x91\xa4\x07\x85\x8b\x61\x3f\x17\x78\x35\xe9\xff\xdb\x42\x39\x7e\xc9\x83\xbc\x9f\x7c\x66\x60\x9c\xab\x6f\x98\x03\x9c\xb1\x52\xbe\x7d\x39\xb0\xe6\xbf\x3d\x94\x2d\x69\x88\x13\x2e\x6b\x7a\x17\xc8\x5f\xc0\xe7\xf3\xc8\x1b\x73\x61\xb7\x2c\xae\xe6\xf7\xcf\x42\xb5\xf6\xfe\xef\x50\xc5\xc7\xe2\xaf\x00\x00\x00\xff\xff\x13\x5b\x7d\x37\xec\x04\x00\x00")
+
+func noop_tracerJsBytes() ([]byte, error) {
+ return bindataRead(
+ _noop_tracerJs,
+ "noop_tracer.js",
+ )
+}
+
+func noop_tracerJs() (*asset, error) {
+ bytes, err := noop_tracerJsBytes()
+ if err != nil {
+ return nil, err
+ }
+
+ info := bindataFileInfo{name: "noop_tracer.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)}
+ a := &asset{bytes: bytes, info: info}
+ return a, nil
+}
+
+var _opcount_tracerJs = []byte("\x1f\x8b\x08\x00\x00\x00\x00\x00\x00\xff\x8c\x94\xcf\x6e\xdb\x46\x10\x87\xcf\xe2\x53\xfc\x8e\x09\xa2\x92\x69\x7b\x28\xe0\x16\x05\x58\xc3\x4e\x04\xd8\xb2\x21\xd1\x09\x7c\x5c\x92\x43\x71\x9b\xd5\x2e\x31\x3b\x2b\x86\x08\xfc\xee\xc5\x2e\xc5\xc6\x08\x5c\xd4\xd7\xd5\xcc\xf7\xcd\x3f\xb1\x28\x70\xe9\x86\x89\xf5\xa1\x17\xfc\xf2\xfe\xe7\xdf\x50\xf5\x84\x83\xfb\x89\xa4\x27\xa6\x70\x44\x19\xa4\x77\xec\xb3\xa2\x40\xd5\x6b\x8f\x4e\x1b\x82\xf6\x18\x14\x0b\x5c\x07\xf9\x21\xde\xe8\x9a\x15\x4f\x79\x56\x14\x73\xce\x8b\x3f\x47\x42\xc7\x44\xf0\xae\x93\x51\x31\x5d\x60\x72\x01\x8d\xb2\x60\x6a\xb5\x17\xd6\x75\x10\x82\x16\x28\xdb\x16\x8e\x71\x74\xad\xee\xa6\x88\xd4\x82\x60\x5b\xe2\xa4\x16\xe2\xa3\x5f\xea\xf8\xb0\x7d\xc0\x0d\x79\x4f\x8c\x0f\x64\x89\x95\xc1\x7d\xa8\x8d\x6e\x70\xa3\x1b\xb2\x9e\xa0\x3c\x86\xf8\xe2\x7b\x6a\x51\x27\x5c\x4c\xbc\x8e\xa5\xec\xcf\xa5\xe0\xda\x05\xdb\x2a\xd1\xce\xae\x41\x3a\x56\x8e\x13\xb1\xd7\xce\xe2\xd7\x45\x75\x06\xae\xe1\x38\x42\xde\x28\x89\x0d\x30\xdc\x10\xf3\xde\x42\xd9\x09\x46\xc9\xf7\xd4\x57\x0c\xe4\x7b\xdf\x2d\xb4\x4d\x9a\xde\x0d\x04\xe9\x95\xc4\xae\x47\x6d\x0c\x6a\x42\xf0\xd4\x05\xb3\x8e\xb4\x3a\x08\x3e\x6f\xaa\x8f\x77\x0f\x15\xca\xed\x23\x3e\x97\xbb\x5d\xb9\xad\x1e\x7f\xc7\xa8\xa5\x77\x41\x40\x27\x9a\x51\xfa\x38\x18\x4d\x2d\x46\xc5\xac\xac\x4c\x70\x5d\x24\xdc\x5e\xed\x2e\x3f\x96\xdb\xaa\xfc\x6b\x73\xb3\xa9\x1e\xe1\x18\xd7\x9b\x6a\x7b\xb5\xdf\xe3\xfa\x6e\x87\x12\xf7\xe5\xae\xda\x5c\x3e\xdc\x94\x3b\xdc\x3f\xec\xee\xef\xf6\x57\x39\xf6\x14\xab\xa2\x98\xff\xff\x33\xef\xd2\xf6\x98\xd0\x92\x28\x6d\xfc\x32\x89\x47\x17\xe0\x7b\x17\x4c\x8b\x5e\x9d\x08\x4c\x0d\xe9\x13\xb5\x50\x68\xdc\x30\xbd\x7a\xa9\x91\xa5\x8c\xb3\x87\xd4\xf3\x7f\x1e\x24\x36\x1d\xac\x93\x35\x3c\x11\xfe\xe8\x45\x86\x8b\xa2\x18\xc7\x31\x3f\xd8\x90\x3b\x3e\x14\x66\xc6\xf9\xe2\xcf\x3c\x8b\x4c\x37\x34\x2e\x58\xa9\x58\x35\xc4\x71\x3f\x0a\x5e\x1d\x07\x43\x90\xf9\x29\xed\xe5\xef\xe0\x05\x29\xd0\x27\xb5\x0d\xc7\x9a\x38\x16\xaf\xad\x17\x0e\x4d\xbc\x87\xf4\xf7\xa1\xaf\xd4\xa4\xdd\xd6\x53\x8a\xbc\xfa\x74\x8b\x9a\xba\x38\x99\x74\xc9\xac\xac\x57\x29\x3c\x5d\xb5\xb6\x4a\xa8\xcd\xb3\x6f\xd9\xaa\x28\x66\x43\x12\x7f\xf9\xd1\x13\x39\xcf\x5d\xff\x8a\xf2\x6c\x95\xd2\x2e\xf0\x7e\x9d\x25\x8a\x17\x1a\x62\x27\xda\x9e\xdc\x17\x6a\xd3\x6a\xe8\x44\x3c\xa5\x66\xdb\xf3\xa9\x45\xfc\xa7\xdb\x05\xe3\xf3\x6c\x15\xf3\x2e\xd0\x05\x9b\x0c\x6f\x8c\x3b\xac\xd1\xd6\x6f\xf1\x0d\xd2\x6b\x9f\x27\xcb\xbb\x77\x78\x3a\x6b\x3a\x15\x8c\x3c\xf7\x8c\xfd\xf9\x08\x55\x23\x41\x99\x33\x3a\x76\xea\x3a\x28\xbb\xd8\xbb\xf9\x3c\x56\x29\xff\x65\xdf\xa2\x60\xf2\x2f\x39\x94\x31\xc9\x33\x03\xfd\x7c\x58\x35\x91\x85\x16\xe2\x38\x50\xb8\x13\x71\xfc\xa8\x80\x49\x02\x5b\x9f\x70\x31\xa7\xd3\x56\x99\x05\x7c\x3e\xbe\x38\x70\x6d\x0f\x79\xb6\x9a\xdf\x9f\x15\xd5\xc8\xd7\xa5\xa8\x99\xf4\x6c\x16\x78\xca\x9e\xb2\x7f\x02\x00\x00\xff\xff\xdd\xd8\xa1\x0a\x5c\x05\x00\x00")
+
+func opcount_tracerJsBytes() ([]byte, error) {
+ return bindataRead(
+ _opcount_tracerJs,
+ "opcount_tracer.js",
+ )
+}
+
+func opcount_tracerJs() (*asset, error) {
+ bytes, err := opcount_tracerJsBytes()
+ if err != nil {
+ return nil, err
+ }
+
+ info := bindataFileInfo{name: "opcount_tracer.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)}
+ a := &asset{bytes: bytes, info: info}
+ return a, nil
+}
+
+var _prestate_tracerJs = 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+
+func prestate_tracerJsBytes() ([]byte, error) {
+ return bindataRead(
+ _prestate_tracerJs,
+ "prestate_tracer.js",
+ )
+}
+
+func prestate_tracerJs() (*asset, error) {
+ bytes, err := prestate_tracerJsBytes()
+ if err != nil {
+ return nil, err
+ }
+
+ info := bindataFileInfo{name: "prestate_tracer.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)}
+ a := &asset{bytes: bytes, info: info}
+ return a, nil
+}
+
+// Asset loads and returns the asset for the given name.
+// It returns an error if the asset could not be found or
+// could not be loaded.
+func Asset(name string) ([]byte, error) {
+ cannonicalName := strings.Replace(name, "\\", "/", -1)
+ if f, ok := _bindata[cannonicalName]; ok {
+ a, err := f()
+ if err != nil {
+ return nil, fmt.Errorf("Asset %s can't read by error: %v", name, err)
+ }
+ return a.bytes, nil
+ }
+ return nil, fmt.Errorf("Asset %s not found", name)
+}
+
+// MustAsset is like Asset but panics when Asset would return an error.
+// It simplifies safe initialization of global variables.
+func MustAsset(name string) []byte {
+ a, err := Asset(name)
+ if err != nil {
+ panic("asset: Asset(" + name + "): " + err.Error())
+ }
+
+ return a
+}
+
+// AssetInfo loads and returns the asset info for the given name.
+// It returns an error if the asset could not be found or
+// could not be loaded.
+func AssetInfo(name string) (os.FileInfo, error) {
+ cannonicalName := strings.Replace(name, "\\", "/", -1)
+ if f, ok := _bindata[cannonicalName]; ok {
+ a, err := f()
+ if err != nil {
+ return nil, fmt.Errorf("AssetInfo %s can't read by error: %v", name, err)
+ }
+ return a.info, nil
+ }
+ return nil, fmt.Errorf("AssetInfo %s not found", name)
+}
+
+// AssetNames returns the names of the assets.
+func AssetNames() []string {
+ names := make([]string, 0, len(_bindata))
+ for name := range _bindata {
+ names = append(names, name)
+ }
+ return names
+}
+
+// _bindata is a table, holding each asset generator, mapped to its name.
+var _bindata = map[string]func() (*asset, error){
+ "4byte_tracer.js": _4byte_tracerJs,
+ "call_tracer.js": call_tracerJs,
+ "evmdis_tracer.js": evmdis_tracerJs,
+ "noop_tracer.js": noop_tracerJs,
+ "opcount_tracer.js": opcount_tracerJs,
+ "prestate_tracer.js": prestate_tracerJs,
+}
+
+// AssetDir returns the file names below a certain
+// directory embedded in the file by go-bindata.
+// For example if you run go-bindata on data/... and data contains the
+// following hierarchy:
+// data/
+// foo.txt
+// img/
+// a.png
+// b.png
+// then AssetDir("data") would return []string{"foo.txt", "img"}
+// AssetDir("data/img") would return []string{"a.png", "b.png"}
+// AssetDir("foo.txt") and AssetDir("notexist") would return an error
+// AssetDir("") will return []string{"data"}.
+func AssetDir(name string) ([]string, error) {
+ node := _bintree
+ if len(name) != 0 {
+ cannonicalName := strings.Replace(name, "\\", "/", -1)
+ pathList := strings.Split(cannonicalName, "/")
+ for _, p := range pathList {
+ node = node.Children[p]
+ if node == nil {
+ return nil, fmt.Errorf("Asset %s not found", name)
+ }
+ }
+ }
+ if node.Func != nil {
+ return nil, fmt.Errorf("Asset %s not found", name)
+ }
+ rv := make([]string, 0, len(node.Children))
+ for childName := range node.Children {
+ rv = append(rv, childName)
+ }
+ return rv, nil
+}
+
+type bintree struct {
+ Func func() (*asset, error)
+ Children map[string]*bintree
+}
+
+var _bintree = &bintree{nil, map[string]*bintree{
+ "4byte_tracer.js": {_4byte_tracerJs, map[string]*bintree{}},
+ "call_tracer.js": {call_tracerJs, map[string]*bintree{}},
+ "evmdis_tracer.js": {evmdis_tracerJs, map[string]*bintree{}},
+ "noop_tracer.js": {noop_tracerJs, map[string]*bintree{}},
+ "opcount_tracer.js": {opcount_tracerJs, map[string]*bintree{}},
+ "prestate_tracer.js": {prestate_tracerJs, map[string]*bintree{}},
+}}
+
+// RestoreAsset restores an asset under the given directory
+func RestoreAsset(dir, name string) error {
+ data, err := Asset(name)
+ if err != nil {
+ return err
+ }
+ info, err := AssetInfo(name)
+ if err != nil {
+ return err
+ }
+ err = os.MkdirAll(_filePath(dir, filepath.Dir(name)), os.FileMode(0755))
+ if err != nil {
+ return err
+ }
+ err = ioutil.WriteFile(_filePath(dir, name), data, info.Mode())
+ if err != nil {
+ return err
+ }
+ err = os.Chtimes(_filePath(dir, name), info.ModTime(), info.ModTime())
+ if err != nil {
+ return err
+ }
+ return nil
+}
+
+// RestoreAssets restores an asset under the given directory recursively
+func RestoreAssets(dir, name string) error {
+ children, err := AssetDir(name)
+ // File
+ if err != nil {
+ return RestoreAsset(dir, name)
+ }
+ // Dir
+ for _, child := range children {
+ err = RestoreAssets(dir, filepath.Join(name, child))
+ if err != nil {
+ return err
+ }
+ }
+ return nil
+}
+
+func _filePath(dir, name string) string {
+ cannonicalName := strings.Replace(name, "\\", "/", -1)
+ return filepath.Join(append([]string{dir}, strings.Split(cannonicalName, "/")...)...)
+}
diff --git a/eth/tracers/internal/tracers/call_tracer.js b/eth/tracers/internal/tracers/call_tracer.js
new file mode 100644
index 000000000..83495b157
--- /dev/null
+++ b/eth/tracers/internal/tracers/call_tracer.js
@@ -0,0 +1,246 @@
+// Copyright 2017 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/>.
+
+// callTracer is a full blown transaction tracer that extracts and reports all
+// the internal calls made by a transaction, along with any useful information.
+{
+ // callstack is the current recursive call stack of the EVM execution.
+ callstack: [{}],
+
+ // descended tracks whether we've just descended from an outer transaction into
+ // an inner call.
+ descended: false,
+
+ // step is invoked for every opcode that the VM executes.
+ step: function(log, db) {
+ // Capture any errors immediately
+ var error = log.getError();
+ if (error !== undefined) {
+ this.fault(log, db);
+ return;
+ }
+ // We only care about system opcodes, faster if we pre-check once
+ var syscall = (log.op.toNumber() & 0xf0) == 0xf0;
+ if (syscall) {
+ var op = log.op.toString();
+ }
+ // If a new contract is being created, add to the call stack
+ if (syscall && op == 'CREATE') {
+ var inOff = log.stack.peek(1).valueOf();
+ var inEnd = inOff + log.stack.peek(2).valueOf();
+
+ // Assemble the internal call report and store for completion
+ var call = {
+ type: op,
+ from: toHex(log.contract.getAddress()),
+ input: toHex(log.memory.slice(inOff, inEnd)),
+ gasIn: log.getGas(),
+ gasCost: log.getCost(),
+ value: '0x' + log.stack.peek(0).toString(16)
+ };
+ this.callstack.push(call);
+ this.descended = true
+ return;
+ }
+ // If a contract is being self destructed, gather that as a subcall too
+ if (syscall && op == 'SELFDESTRUCT') {
+ var left = this.callstack.length;
+ if (this.callstack[left-1].calls === undefined) {
+ this.callstack[left-1].calls = [];
+ }
+ this.callstack[left-1].calls.push({type: op});
+ return
+ }
+ // If a new method invocation is being done, add to the call stack
+ if (syscall && (op == 'CALL' || op == 'CALLCODE' || op == 'DELEGATECALL' || op == 'STATICCALL')) {
+ // Skip any pre-compile invocations, those are just fancy opcodes
+ var to = toAddress(log.stack.peek(1).toString(16));
+ if (isPrecompiled(to)) {
+ return
+ }
+ var off = (op == 'DELEGATECALL' || op == 'STATICCALL' ? 0 : 1);
+
+ var inOff = log.stack.peek(2 + off).valueOf();
+ var inEnd = inOff + log.stack.peek(3 + off).valueOf();
+
+ // Assemble the internal call report and store for completion
+ var call = {
+ type: op,
+ from: toHex(log.contract.getAddress()),
+ to: toHex(to),
+ input: toHex(log.memory.slice(inOff, inEnd)),
+ gasIn: log.getGas(),
+ gasCost: log.getCost(),
+ outOff: log.stack.peek(4 + off).valueOf(),
+ outLen: log.stack.peek(5 + off).valueOf()
+ };
+ if (op != 'DELEGATECALL' && op != 'STATICCALL') {
+ call.value = '0x' + log.stack.peek(2).toString(16);
+ }
+ this.callstack.push(call);
+ this.descended = true
+ return;
+ }
+ // If we've just descended into an inner call, retrieve it's true allowance. We
+ // need to extract if from within the call as there may be funky gas dynamics
+ // with regard to requested and actually given gas (2300 stipend, 63/64 rule).
+ if (this.descended) {
+ if (log.getDepth() >= this.callstack.length) {
+ this.callstack[this.callstack.length - 1].gas = log.getGas();
+ } else {
+ // TODO(karalabe): The call was made to a plain account. We currently don't
+ // have access to the true gas amount inside the call and so any amount will
+ // mostly be wrong since it depends on a lot of input args. Skip gas for now.
+ }
+ this.descended = false;
+ }
+ // If an existing call is returning, pop off the call stack
+ if (syscall && op == 'REVERT') {
+ this.callstack[this.callstack.length - 1].error = "execution reverted";
+ return;
+ }
+ if (log.getDepth() == this.callstack.length - 1) {
+ // Pop off the last call and get the execution results
+ var call = this.callstack.pop();
+
+ if (call.type == 'CREATE') {
+ // If the call was a CREATE, retrieve the contract address and output code
+ call.gasUsed = '0x' + bigInt(call.gasIn - call.gasCost - log.getGas()).toString(16);
+ delete call.gasIn; delete call.gasCost;
+
+ var ret = log.stack.peek(0);
+ if (!ret.equals(0)) {
+ call.to = toHex(toAddress(ret.toString(16)));
+ call.output = toHex(db.getCode(toAddress(ret.toString(16))));
+ } else if (call.error === undefined) {
+ call.error = "internal failure"; // TODO(karalabe): surface these faults somehow
+ }
+ } else {
+ // If the call was a contract call, retrieve the gas usage and output
+ if (call.gas !== undefined) {
+ call.gasUsed = '0x' + bigInt(call.gasIn - call.gasCost + call.gas - log.getGas()).toString(16);
+
+ var ret = log.stack.peek(0);
+ if (!ret.equals(0)) {
+ call.output = toHex(log.memory.slice(call.outOff, call.outOff + call.outLen));
+ } else if (call.error === undefined) {
+ call.error = "internal failure"; // TODO(karalabe): surface these faults somehow
+ }
+ }
+ delete call.gasIn; delete call.gasCost;
+ delete call.outOff; delete call.outLen;
+ }
+ if (call.gas !== undefined) {
+ call.gas = '0x' + bigInt(call.gas).toString(16);
+ }
+ // Inject the call into the previous one
+ var left = this.callstack.length;
+ if (this.callstack[left-1].calls === undefined) {
+ this.callstack[left-1].calls = [];
+ }
+ this.callstack[left-1].calls.push(call);
+ }
+ },
+
+ // fault is invoked when the actual execution of an opcode fails.
+ fault: function(log, db) {
+ // If the topmost call already reverted, don't handle the additional fault again
+ if (this.callstack[this.callstack.length - 1].error !== undefined) {
+ return;
+ }
+ // Pop off the just failed call
+ var call = this.callstack.pop();
+ call.error = log.getError();
+
+ // Consume all available gas and clean any leftovers
+ if (call.gas !== undefined) {
+ call.gas = '0x' + bigInt(call.gas).toString(16);
+ call.gasUsed = call.gas
+ }
+ delete call.gasIn; delete call.gasCost;
+ delete call.outOff; delete call.outLen;
+
+ // Flatten the failed call into its parent
+ var left = this.callstack.length;
+ if (left > 0) {
+ if (this.callstack[left-1].calls === undefined) {
+ this.callstack[left-1].calls = [];
+ }
+ this.callstack[left-1].calls.push(call);
+ return;
+ }
+ // Last call failed too, leave it in the stack
+ this.callstack.push(call);
+ },
+
+ // result is invoked when all the opcodes have been iterated over and returns
+ // the final result of the tracing.
+ result: function(ctx, db) {
+ var result = {
+ type: ctx.type,
+ from: toHex(ctx.from),
+ to: toHex(ctx.to),
+ value: '0x' + ctx.value.toString(16),
+ gas: '0x' + bigInt(ctx.gas).toString(16),
+ gasUsed: '0x' + bigInt(ctx.gasUsed).toString(16),
+ input: toHex(ctx.input),
+ output: toHex(ctx.output),
+ time: ctx.time,
+ };
+ if (this.callstack[0].calls !== undefined) {
+ result.calls = this.callstack[0].calls;
+ }
+ if (this.callstack[0].error !== undefined) {
+ result.error = this.callstack[0].error;
+ } else if (ctx.error !== undefined) {
+ result.error = ctx.error;
+ }
+ if (result.error !== undefined) {
+ delete result.output;
+ }
+ return this.finalize(result);
+ },
+
+ // finalize recreates a call object using the final desired field oder for json
+ // serialization. This is a nicety feature to pass meaningfully ordered results
+ // to users who don't interpret it, just display it.
+ finalize: function(call) {
+ var sorted = {
+ type: call.type,
+ from: call.from,
+ to: call.to,
+ value: call.value,
+ gas: call.gas,
+ gasUsed: call.gasUsed,
+ input: call.input,
+ output: call.output,
+ error: call.error,
+ time: call.time,
+ calls: call.calls,
+ }
+ for (var key in sorted) {
+ if (sorted[key] === undefined) {
+ delete sorted[key];
+ }
+ }
+ if (sorted.calls !== undefined) {
+ for (var i=0; i<sorted.calls.length; i++) {
+ sorted.calls[i] = this.finalize(sorted.calls[i]);
+ }
+ }
+ return sorted;
+ }
+}
diff --git a/eth/tracers/internal/tracers/evmdis_tracer.js b/eth/tracers/internal/tracers/evmdis_tracer.js
new file mode 100644
index 000000000..2790e0fd5
--- /dev/null
+++ b/eth/tracers/internal/tracers/evmdis_tracer.js
@@ -0,0 +1,93 @@
+// Copyright 2017 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/>.
+
+// evmdisTracer returns sufficent information from a trace to perform evmdis-style
+// disassembly.
+{
+ stack: [{ops: []}],
+
+ npushes: {0: 0, 1: 1, 2: 1, 3: 1, 4: 1, 5: 1, 6: 1, 7: 1, 8: 1, 9: 1, 10: 1, 11: 1, 16: 1, 17: 1, 18: 1, 19: 1, 20: 1, 21: 1, 22: 1, 23: 1, 24: 1, 25: 1, 26: 1, 32: 1, 48: 1, 49: 1, 50: 1, 51: 1, 52: 1, 53: 1, 54: 1, 55: 0, 56: 1, 57: 0, 58: 1, 59: 1, 60: 0, 64: 1, 65: 1, 66: 1, 67: 1, 68: 1, 69: 1, 80: 0, 81: 1, 82: 0, 83: 0, 84: 1, 85: 0, 86: 0, 87: 0, 88: 1, 89: 1, 90: 1, 91: 0, 96: 1, 97: 1, 98: 1, 99: 1, 100: 1, 101: 1, 102: 1, 103: 1, 104: 1, 105: 1, 106: 1, 107: 1, 108: 1, 109: 1, 110: 1, 111: 1, 112: 1, 113: 1, 114: 1, 115: 1, 116: 1, 117: 1, 118: 1, 119: 1, 120: 1, 121: 1, 122: 1, 123: 1, 124: 1, 125: 1, 126: 1, 127: 1, 128: 2, 129: 3, 130: 4, 131: 5, 132: 6, 133: 7, 134: 8, 135: 9, 136: 10, 137: 11, 138: 12, 139: 13, 140: 14, 141: 15, 142: 16, 143: 17, 144: 2, 145: 3, 146: 4, 147: 5, 148: 6, 149: 7, 150: 8, 151: 9, 152: 10, 153: 11, 154: 12, 155: 13, 156: 14, 157: 15, 158: 16, 159: 17, 160: 0, 161: 0, 162: 0, 163: 0, 164: 0, 240: 1, 241: 1, 242: 1, 243: 0, 244: 0, 255: 0},
+
+ // result is invoked when all the opcodes have been iterated over and returns
+ // the final result of the tracing.
+ result: function() { return this.stack[0].ops; },
+
+ // fault is invoked when the actual execution of an opcode fails.
+ fault: function(log, db) { },
+
+ // step is invoked for every opcode that the VM executes.
+ step: function(log, db) {
+ var frame = this.stack[this.stack.length - 1];
+
+ var error = log.getError();
+ if (error) {
+ frame["error"] = error;
+ } else if (log.getDepth() == this.stack.length) {
+ opinfo = {
+ op: log.op.toNumber(),
+ depth : log.getDepth(),
+ result: [],
+ };
+ if (frame.ops.length > 0) {
+ var prevop = frame.ops[frame.ops.length - 1];
+ for(var i = 0; i < this.npushes[prevop.op]; i++)
+ prevop.result.push(log.stack.peek(i).toString(16));
+ }
+ switch(log.op.toString()) {
+ case "CALL": case "CALLCODE":
+ var instart = log.stack.peek(3).valueOf();
+ var insize = log.stack.peek(4).valueOf();
+ opinfo["gas"] = log.stack.peek(0).valueOf();
+ opinfo["to"] = log.stack.peek(1).toString(16);
+ opinfo["value"] = log.stack.peek(2).toString();
+ opinfo["input"] = log.memory.slice(instart, instart + insize);
+ opinfo["error"] = null;
+ opinfo["return"] = null;
+ opinfo["ops"] = [];
+ this.stack.push(opinfo);
+ break;
+ case "DELEGATECALL": case "STATICCALL":
+ var instart = log.stack.peek(2).valueOf();
+ var insize = log.stack.peek(3).valueOf();
+ opinfo["op"] = log.op.toString();
+ opinfo["gas"] = log.stack.peek(0).valueOf();
+ opinfo["to"] = log.stack.peek(1).toString(16);
+ opinfo["input"] = log.memory.slice(instart, instart + insize);
+ opinfo["error"] = null;
+ opinfo["return"] = null;
+ opinfo["ops"] = [];
+ this.stack.push(opinfo);
+ break;
+ case "RETURN":
+ var out = log.stack.peek(0).valueOf();
+ var outsize = log.stack.peek(1).valueOf();
+ frame.return = log.memory.slice(out, out + outsize);
+ break;
+ case "STOP": case "SUICIDE":
+ frame.return = log.memory.slice(0, 0);
+ break;
+ case "JUMPDEST":
+ opinfo["pc"] = log.getPC();
+ }
+ if(log.op.isPush()) {
+ opinfo["len"] = log.op.toNumber() - 0x5e;
+ }
+ frame.ops.push(opinfo);
+ } else {
+ this.stack = this.stack.slice(0, log.getDepth());
+ }
+ }
+}
diff --git a/eth/tracers/internal/tracers/noop_tracer.js b/eth/tracers/internal/tracers/noop_tracer.js
new file mode 100644
index 000000000..f966ddc7d
--- /dev/null
+++ b/eth/tracers/internal/tracers/noop_tracer.js
@@ -0,0 +1,29 @@
+// Copyright 2017 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/>.
+
+// noopTracer is just the barebone boilerplate code required from a JavaScript
+// object to be usable as a transaction tracer.
+{
+ // step is invoked for every opcode that the VM executes.
+ step: function(log, db) { },
+
+ // fault is invoked when the actual execution of an opcode fails.
+ fault: function(log, db) { },
+
+ // result is invoked when all the opcodes have been iterated over and returns
+ // the final result of the tracing.
+ result: function(ctx, db) { }
+}
diff --git a/eth/tracers/internal/tracers/opcount_tracer.js b/eth/tracers/internal/tracers/opcount_tracer.js
new file mode 100644
index 000000000..f7984c741
--- /dev/null
+++ b/eth/tracers/internal/tracers/opcount_tracer.js
@@ -0,0 +1,32 @@
+// Copyright 2017 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/>.
+
+// opcountTracer is a sample tracer that just counts the number of instructions
+// executed by the EVM before the transaction terminated.
+{
+ // count tracks the number of EVM instructions executed.
+ count: 0,
+
+ // step is invoked for every opcode that the VM executes.
+ step: function(log, db) { this.count++ },
+
+ // fault is invoked when the actual execution of an opcode fails.
+ fault: function(log, db) { },
+
+ // result is invoked when all the opcodes have been iterated over and returns
+ // the final result of the tracing.
+ result: function(ctx, db) { return this.count }
+}
diff --git a/eth/tracers/internal/tracers/prestate_tracer.js b/eth/tracers/internal/tracers/prestate_tracer.js
new file mode 100644
index 000000000..99f71d2c3
--- /dev/null
+++ b/eth/tracers/internal/tracers/prestate_tracer.js
@@ -0,0 +1,103 @@
+// Copyright 2017 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/>.
+
+// prestateTracer outputs sufficient information to create a local execution of
+// the transaction from a custom assembled genesis block.
+{
+ // prestate is the genesis that we're building.
+ prestate: null,
+
+ // lookupAccount injects the specified account into the prestate object.
+ lookupAccount: function(addr, db){
+ var acc = toHex(addr);
+ if (this.prestate[acc] === undefined) {
+ this.prestate[acc] = {
+ balance: '0x' + db.getBalance(addr).toString(16),
+ nonce: db.getNonce(addr),
+ code: toHex(db.getCode(addr)),
+ storage: {}
+ };
+ }
+ },
+
+ // lookupStorage injects the specified storage entry of the given account into
+ // the prestate object.
+ lookupStorage: function(addr, key, db){
+ var acc = toHex(addr);
+ var idx = toHex(key);
+
+ if (this.prestate[acc].storage[idx] === undefined) {
+ var val = toHex(db.getState(addr, key));
+ if (val != "0x0000000000000000000000000000000000000000000000000000000000000000") {
+ this.prestate[acc].storage[idx] = toHex(db.getState(addr, key));
+ }
+ }
+ },
+
+ // result is invoked when all the opcodes have been iterated over and returns
+ // the final result of the tracing.
+ result: function(ctx, db) {
+ // At this point, we need to deduct the 'value' from the
+ // outer transaction, and move it back to the origin
+ this.lookupAccount(ctx.from, db);
+
+ var fromBal = bigInt(this.prestate[toHex(ctx.from)].balance.slice(2), 16);
+ var toBal = bigInt(this.prestate[toHex(ctx.to)].balance.slice(2), 16);
+
+ this.prestate[toHex(ctx.to)].balance = '0x'+toBal.subtract(ctx.value).toString(16);
+ this.prestate[toHex(ctx.from)].balance = '0x'+fromBal.add(ctx.value).toString(16);
+
+ // Decrement the caller's nonce, and remove empty create targets
+ this.prestate[toHex(ctx.from)].nonce--;
+ if (ctx.type == 'CREATE') {
+ // We can blibdly delete the contract prestate, as any existing state would
+ // have caused the transaction to be rejected as invalid in the first place.
+ delete this.prestate[toHex(ctx.to)];
+ }
+ // Return the assembled allocations (prestate)
+ return this.prestate;
+ },
+
+ // step is invoked for every opcode that the VM executes.
+ step: function(log, db) {
+ // Add the current account if we just started tracing
+ if (this.prestate === null){
+ this.prestate = {};
+ // Balance will potentially be wrong here, since this will include the value
+ // sent along with the message. We fix that in 'result()'.
+ this.lookupAccount(log.contract.getAddress(), db);
+ }
+ // Whenever new state is accessed, add it to the prestate
+ switch (log.op.toString()) {
+ case "EXTCODECOPY": case "EXTCODESIZE": case "BALANCE":
+ this.lookupAccount(toAddress(log.stack.peek(0).toString(16)), db);
+ break;
+ case "CREATE":
+ var from = log.contract.getAddress();
+ this.lookupAccount(toContract(from, db.getNonce(from)), db);
+ break;
+ case "CALL": case "CALLCODE": case "DELEGATECALL": case "STATICCALL":
+ this.lookupAccount(toAddress(log.stack.peek(1).toString(16)), db);
+ break;
+ case 'SSTORE':case 'SLOAD':
+ this.lookupStorage(log.contract.getAddress(), toWord(log.stack.peek(0).toString(16)), db);
+ break;
+ }
+ },
+
+ // fault is invoked when the actual execution of an opcode fails.
+ fault: function(log, db) {}
+}
diff --git a/eth/tracers/internal/tracers/tracers.go b/eth/tracers/internal/tracers/tracers.go
new file mode 100644
index 000000000..dcf0d49da
--- /dev/null
+++ b/eth/tracers/internal/tracers/tracers.go
@@ -0,0 +1,21 @@
+// Copyright 2017 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/>.
+
+//go:generate go-bindata -nometadata -o assets.go -pkg tracers -ignore ((tracers)|(assets)).go ./...
+//go:generate gofmt -s -w assets.go
+
+// Package tracers contains the actual JavaScript tracer assets.
+package tracers
diff --git a/eth/tracers/testdata/call_tracer_create.json b/eth/tracers/testdata/call_tracer_create.json
new file mode 100644
index 000000000..8699bf3e7
--- /dev/null
+++ b/eth/tracers/testdata/call_tracer_create.json
@@ -0,0 +1,58 @@
+{
+ "context": {
+ "difficulty": "3755480783",
+ "gasLimit": "5401723",
+ "miner": "0xd049bfd667cb46aa3ef5df0da3e57db3be39e511",
+ "number": "2294702",
+ "timestamp": "1513676146"
+ },
+ "genesis": {
+ "alloc": {
+ "0x13e4acefe6a6700604929946e70e6443e4e73447": {
+ "balance": "0xcf3e0938579f000",
+ "code": "0x",
+ "nonce": "9",
+ "storage": {}
+ },
+ "0x7dc9c9730689ff0b0fd506c67db815f12d90a448": {
+ "balance": "0x0",
+ "code": "0x",
+ "nonce": "0",
+ "storage": {}
+ }
+ },
+ "config": {
+ "byzantiumBlock": 1700000,
+ "chainId": 3,
+ "daoForkSupport": true,
+ "eip150Block": 0,
+ "eip150Hash": "0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d",
+ "eip155Block": 10,
+ "eip158Block": 10,
+ "ethash": {},
+ "homesteadBlock": 0
+ },
+ "difficulty": "3757315409",
+ "extraData": "0x566961425443",
+ "gasLimit": "5406414",
+ "hash": "0xae107f592eebdd9ff8d6ba00363676096e6afb0e1007a7d3d0af88173077378d",
+ "miner": "0xd049bfd667cb46aa3ef5df0da3e57db3be39e511",
+ "mixHash": "0xc927aa05a38bc3de864e95c33b3ae559d3f39c4ccd51cef6f113f9c50ba0caf1",
+ "nonce": "0x93363bbd2c95f410",
+ "number": "2294701",
+ "stateRoot": "0x6b6737d5bde8058990483e915866bd1578014baeff57bd5e4ed228a2bfad635c",
+ "timestamp": "1513676127",
+ "totalDifficulty": "7160808139332585"
+ },
+ "input": "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",
+ "result": {
+ "from": "0x13e4acefe6a6700604929946e70e6443e4e73447",
+ "gas": "0x5e106",
+ "gasUsed": "0x5e106",
+ "input": "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",
+ "output": "0x606060405260043610610083576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff16806305e4382a146100855780631c02708d146100ae5780632e1a7d4d146100c35780635114cb52146100e6578063a37dda2c146100fe578063ae200e7914610153578063b5769f70146101a8575b005b341561009057600080fd5b6100986101d1565b6040518082815260200191505060405180910390f35b34156100b957600080fd5b6100c16101d7565b005b34156100ce57600080fd5b6100e460048080359060200190919050506102eb565b005b6100fc6004808035906020019091905050610513565b005b341561010957600080fd5b6101116105d6565b604051808273ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200191505060405180910390f35b341561015e57600080fd5b6101666105fc565b604051808273ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200191505060405180910390f35b34156101b357600080fd5b6101bb610621565b6040518082815260200191505060405180910390f35b60025481565b60011515600460009054906101000a900460ff1615151415156101f957600080fd5b6000809054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff1614806102a15750600160009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff16145b15156102ac57600080fd5b6000600460006101000a81548160ff0219169083151502179055506003543073ffffffffffffffffffffffffffffffffffffffff163103600281905550565b6000809054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff1614806103935750600160009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff16145b151561039e57600080fd5b6000809054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff16141561048357600060025411801561040757506002548111155b151561041257600080fd5b80600254036002819055506000809054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff166108fc829081150290604051600060405180830381858888f19350505050151561047e57600080fd5b610510565b600060035411801561049757506003548111155b15156104a257600080fd5b8060035403600381905550600160009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff166108fc829081150290604051600060405180830381858888f19350505050151561050f57600080fd5b5b50565b60011515600460009054906101000a900460ff16151514151561053557600080fd5b6000809054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff1614801561059657506003548160035401115b80156105bd575080600354013073ffffffffffffffffffffffffffffffffffffffff163110155b15156105c857600080fd5b806003540160038190555050565b600160009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1681565b6000809054906101000a900473ffffffffffffffffffffffffffffffffffffffff1681565b600354815600a165627a7a72305820c3b849e8440987ce43eae3097b77672a69234d516351368b03fe5b7de03807910029",
+ "to": "0x7dc9c9730689ff0b0fd506c67db815f12d90a448",
+ "type": "CREATE",
+ "value": "0x0"
+ }
+}
diff --git a/eth/tracers/testdata/call_tracer_deep_calls.json b/eth/tracers/testdata/call_tracer_deep_calls.json
new file mode 100644
index 000000000..0353d4cfa
--- /dev/null
+++ b/eth/tracers/testdata/call_tracer_deep_calls.json
@@ -0,0 +1,415 @@
+{
+ "context": {
+ "difficulty": "117066904",
+ "gasLimit": "4712384",
+ "miner": "0x1977c248e1014cc103929dd7f154199c916e39ec",
+ "number": "25001",
+ "timestamp": "1479891545"
+ },
+ "genesis": {
+ "alloc": {
+ "0x2a98c5f40bfa3dee83431103c535f6fae9a8ad38": {
+ "balance": "0x0",
+ "code": "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",
+ "nonce": "1",
+ "storage": {
+ "0x0000000000000000000000000000000000000000000000000000000000000002": "0x0000000000000000000000002cccf5e0538493c235d1c5ef6580f77d99e91396"
+ }
+ },
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diff --git a/eth/tracers/testdata/call_tracer_delegatecall.json b/eth/tracers/testdata/call_tracer_delegatecall.json
new file mode 100644
index 000000000..f7ad6df5f
--- /dev/null
+++ b/eth/tracers/testdata/call_tracer_delegatecall.json
@@ -0,0 +1,97 @@
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+ "input": "0xf889448504a817c800832dc6c094269296dddce321a6bcbaa2f0181127593d732cba80a47065cb480000000000000000000000001523e55a1ca4efbae03355775ae89f8d7699ad9e29a080ed81e4c5e9971a730efab4885566e2c868cd80bd4166d0ed8c287fdf181650a069d7c49215e3d4416ad239cd09dbb71b9f04c16b33b385d14f40b618a7a65115",
+ "result": {
+ "calls": [
+ {
+ "calls": [
+ {
+ "from": "0x13204f5d64c28326fd7bd05fd4ea855302d7f2ff",
+ "gas": "0x2bf459",
+ "gasUsed": "0x2aa",
+ "input": "0x7d65837a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a529806c67cc6486d4d62024471772f47f6fd672",
+ "output": "0x0000000000000000000000000000000000000000000000000000000000000001",
+ "to": "0x42b02b5deeb78f34cd5ac896473b63e6c99a71a2",
+ "type": "DELEGATECALL"
+ }
+ ],
+ "from": "0x269296dddce321a6bcbaa2f0181127593d732cba",
+ "gas": "0x2cae73",
+ "gasUsed": "0xa9d",
+ "input": "0x5dbe47e8000000000000000000000000a529806c67cc6486d4d62024471772f47f6fd672",
+ "output": "0x0000000000000000000000000000000000000000000000000000000000000001",
+ "to": "0x13204f5d64c28326fd7bd05fd4ea855302d7f2ff",
+ "type": "CALL",
+ "value": "0x0"
+ }
+ ],
+ "from": "0xa529806c67cc6486d4d62024471772f47f6fd672",
+ "gas": "0x2d6e28",
+ "gasUsed": "0x64bd",
+ "input": "0x7065cb480000000000000000000000001523e55a1ca4efbae03355775ae89f8d7699ad9e",
+ "output": "0x",
+ "to": "0x269296dddce321a6bcbaa2f0181127593d732cba",
+ "type": "CALL",
+ "value": "0x0"
+ }
+}
diff --git a/eth/tracers/testdata/call_tracer_inner_create_oog_outer_throw.json b/eth/tracers/testdata/call_tracer_inner_create_oog_outer_throw.json
new file mode 100644
index 000000000..b8a4cdd23
--- /dev/null
+++ b/eth/tracers/testdata/call_tracer_inner_create_oog_outer_throw.json
@@ -0,0 +1,77 @@
+{
+ "context": {
+ "difficulty": "3451177886",
+ "gasLimit": "4709286",
+ "miner": "0x1585936b53834b021f68cc13eeefdec2efc8e724",
+ "number": "2290744",
+ "timestamp": "1513616439"
+ },
+ "genesis": {
+ "alloc": {
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+ "balance": "0x0",
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+ "type": "CREATE",
+ "value": "0x0"
+ }
+ ],
+ "error": "invalid jump destination (PUSH1) 0",
+ "from": "0xe4a13bc304682a903e9472f469c33801dd18d9e8",
+ "gas": "0x435c8",
+ "gasUsed": "0x435c8",
+ "input": "0x3b91f506000000000000000000000000a14bdd7e5666d784dcce98ad24d383a6b1cd4182000000000000000000000000e4a13bc304682a903e9472f469c33801dd18d9e8",
+ "to": "0x1d3ddf7caf024f253487e18bc4a15b1a360c170a",
+ "type": "CALL",
+ "value": "0x0"
+ }
+}
diff --git a/eth/tracers/testdata/call_tracer_inner_throw_outer_revert.json b/eth/tracers/testdata/call_tracer_inner_throw_outer_revert.json
new file mode 100644
index 000000000..edd80e5b8
--- /dev/null
+++ b/eth/tracers/testdata/call_tracer_inner_throw_outer_revert.json
@@ -0,0 +1,81 @@
+{
+ "context": {
+ "difficulty": "3956606365",
+ "gasLimit": "5413248",
+ "miner": "0x00d8ae40d9a06d0e7a2877b62e32eb959afbe16d",
+ "number": "2295104",
+ "timestamp": "1513681256"
+ },
+ "genesis": {
+ "alloc": {
+ "0x33056b5dcac09a9b4becad0e1dcf92c19bd0af76": {
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+ "calls": [
+ {
+ "error": "invalid opcode 0xfe",
+ "from": "0x33056b5dcac09a9b4becad0e1dcf92c19bd0af76",
+ "gas": "0x75fe3",
+ "gasUsed": "0x75fe3",
+ "input": "0xa9059cbb000000000000000000000000d4fcab9f0a6dc0493af47c864f6f17a8a5e2e82600000000000000000000000000000000000000000000000000000000000002f4",
+ "to": "0xe819f024b41358d2c08e3a868a5c5dd0566078d4",
+ "type": "CALL",
+ "value": "0x0"
+ }
+ ],
+ "error": "execution reverted",
+ "from": "0xd4fcab9f0a6dc0493af47c864f6f17a8a5e2e826",
+ "gas": "0x78d9e",
+ "gasUsed": "0x76fc0",
+ "input": "0x",
+ "to": "0x33056b5dcac09a9b4becad0e1dcf92c19bd0af76",
+ "type": "CALL",
+ "value": "0xe92596fd6290000"
+ }
+}
diff --git a/eth/tracers/testdata/call_tracer_oog.json b/eth/tracers/testdata/call_tracer_oog.json
new file mode 100644
index 000000000..de4fed6ab
--- /dev/null
+++ b/eth/tracers/testdata/call_tracer_oog.json
@@ -0,0 +1,60 @@
+{
+ "context": {
+ "difficulty": "3699098917",
+ "gasLimit": "5258985",
+ "miner": "0xd049bfd667cb46aa3ef5df0da3e57db3be39e511",
+ "number": "2294631",
+ "timestamp": "1513675366"
+ },
+ "genesis": {
+ "alloc": {
+ "0x43064693d3d38ad6a7cb579e0d6d9718c8aa6b62": {
+ "balance": "0x0",
+ "code": 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+ "nonce": "1",
+ "storage": {
+ "0x296b66049cc4f9c8bf3d4f14752add261d1a980b39bdd194a7897baf39ac7579": "0x0000000000000000000000000000000000000000033b2e3c9fc9653f9e72b1e0"
+ }
+ },
+ "0x94194bc2aaf494501d7880b61274a169f6502a54": {
+ "balance": "0xea8c39a876d19888d",
+ "code": "0x",
+ "nonce": "265",
+ "storage": {}
+ }
+ },
+ "config": {
+ "byzantiumBlock": 1700000,
+ "chainId": 3,
+ "daoForkSupport": true,
+ "eip150Block": 0,
+ "eip150Hash": "0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d",
+ "eip155Block": 10,
+ "eip158Block": 10,
+ "ethash": {},
+ "homesteadBlock": 0
+ },
+ "difficulty": "3699098917",
+ "extraData": "0x4554482e45544846414e532e4f52472d4641313738394444",
+ "gasLimit": "5263953",
+ "hash": "0x03a0f62a8106793dafcfae7b75fd2654322062d585a19cea568314d7205790dc",
+ "miner": "0xbbf5029fd710d227630c8b7d338051b8e76d50b3",
+ "mixHash": "0x15482cc64b7c00a947f5bf015dfc010db1a6a668c74df61974d6a7848c174408",
+ "nonce": "0xd1bdb150f6fd170e",
+ "number": "2294630",
+ "stateRoot": "0x1ab1a534e84cc787cda1db21e0d5920ab06017948075b759166cfea7274657a1",
+ "timestamp": "1513675347",
+ "totalDifficulty": "7160543502214733"
+ },
+ "input": "0xf8ab820109855d21dba00082ca1d9443064693d3d38ad6a7cb579e0d6d9718c8aa6b6280b844a9059cbb000000000000000000000000e77b1ac803616503510bed0086e3a7be2627a69900000000000000000000000000000000000000000000000000000009502f90001ba0ce3ad83f5530136467b7c2bb225f406bd170f4ad59c254e5103c34eeabb5bd69a0455154527224a42ab405cacf0fe92918a75641ce4152f8db292019a5527aa956",
+ "result": {
+ "error": "out of gas",
+ "from": "0x94194bc2aaf494501d7880b61274a169f6502a54",
+ "gas": "0x7045",
+ "gasUsed": "0x7045",
+ "input": "0xa9059cbb000000000000000000000000e77b1ac803616503510bed0086e3a7be2627a69900000000000000000000000000000000000000000000000000000009502f9000",
+ "to": "0x43064693d3d38ad6a7cb579e0d6d9718c8aa6b62",
+ "type": "CALL",
+ "value": "0x0"
+ }
+}
diff --git a/eth/tracers/testdata/call_tracer_revert.json b/eth/tracers/testdata/call_tracer_revert.json
new file mode 100644
index 000000000..059040a1c
--- /dev/null
+++ b/eth/tracers/testdata/call_tracer_revert.json
@@ -0,0 +1,58 @@
+{
+ "context": {
+ "difficulty": "3665057456",
+ "gasLimit": "5232723",
+ "miner": "0xf4d8e706cfb25c0decbbdd4d2e2cc10c66376a3f",
+ "number": "2294501",
+ "timestamp": "1513673601"
+ },
+ "genesis": {
+ "alloc": {
+ "0x0f6cef2b7fbb504782e35aa82a2207e816a2b7a9": {
+ "balance": "0x2a3fc32bcc019283",
+ "code": "0x",
+ "nonce": "10",
+ "storage": {}
+ },
+ "0xabbcd5b340c80b5f1c0545c04c987b87310296ae": {
+ "balance": "0x0",
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+ "nonce": "1",
+ "storage": {}
+ }
+ },
+ "config": {
+ "byzantiumBlock": 1700000,
+ "chainId": 3,
+ "daoForkSupport": true,
+ "eip150Block": 0,
+ "eip150Hash": "0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d",
+ "eip155Block": 10,
+ "eip158Block": 10,
+ "ethash": {},
+ "homesteadBlock": 0
+ },
+ "difficulty": "3672229776",
+ "extraData": "0x4554482e45544846414e532e4f52472d4641313738394444",
+ "gasLimit": "5227619",
+ "hash": "0xa07b3d6c6bf63f5f981016db9f2d1d93033833f2c17e8bf7209e85f1faf08076",
+ "miner": "0xbbf5029fd710d227630c8b7d338051b8e76d50b3",
+ "mixHash": "0x806e151ce2817be922e93e8d5921fa0f0d0fd213d6b2b9a3fa17458e74a163d0",
+ "nonce": "0xbc5d43adc2c30c7d",
+ "number": "2294500",
+ "stateRoot": "0xca645b335888352ef9d8b1ef083e9019648180b259026572e3139717270de97d",
+ "timestamp": "1513673552",
+ "totalDifficulty": "7160066586979149"
+ },
+ "input": "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",
+ "result": {
+ "error": "execution reverted",
+ "from": "0x0f6cef2b7fbb504782e35aa82a2207e816a2b7a9",
+ "gas": "0x2d55e8",
+ "gasUsed": "0xc3",
+ "input": "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",
+ "to": "0xabbcd5b340c80b5f1c0545c04c987b87310296ae",
+ "type": "CALL",
+ "value": "0x0"
+ }
+}
diff --git a/eth/tracers/testdata/call_tracer_simple.json b/eth/tracers/testdata/call_tracer_simple.json
new file mode 100644
index 000000000..b46432122
--- /dev/null
+++ b/eth/tracers/testdata/call_tracer_simple.json
@@ -0,0 +1,78 @@
+{
+ "context": {
+ "difficulty": "3502894804",
+ "gasLimit": "4722976",
+ "miner": "0x1585936b53834b021f68cc13eeefdec2efc8e724",
+ "number": "2289806",
+ "timestamp": "1513601314"
+ },
+ "genesis": {
+ "alloc": {
+ "0x0024f658a46fbb89d8ac105e98d7ac7cbbaf27c5": {
+ "balance": "0x0",
+ "code": "0x",
+ "nonce": "22",
+ "storage": {}
+ },
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diff --git a/eth/tracers/testdata/call_tracer_throw.json b/eth/tracers/testdata/call_tracer_throw.json
new file mode 100644
index 000000000..60d4d1071
--- /dev/null
+++ b/eth/tracers/testdata/call_tracer_throw.json
@@ -0,0 +1,62 @@
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+ },
+ "difficulty": "117066792",
+ "extraData": "0xd783010502846765746887676f312e372e33856c696e7578",
+ "gasLimit": "4712388",
+ "hash": "0xe23e8d4562a1045b70cbc99fefb20c101a8f0fc8559a80d65fea8896e2f1d46e",
+ "miner": "0x71842f946b98800fe6feb49f0ae4e253259031c9",
+ "mixHash": "0x0aada9d6e93dd4db0d09c0488dc0a048fca2ccdc1f3fc7b83ba2a8d393a3a4ff",
+ "nonce": "0x70849d5838dee2e9",
+ "number": "25008",
+ "stateRoot": "0x1e01d2161794768c5b917069e73d86e8dca80cd7f3168c0597de420ab93a3b7b",
+ "timestamp": "1479891641",
+ "totalDifficulty": "1896347038589"
+ },
+ "input": "0xf88b8206668504a817c8008303d09094c212e03b9e060e36facad5fd8f4435412ca22e6b80a451a34eb8000000000000000000000000000000000000000000000027fad02094277c000029a0692a3b4e7b2842f8dd7832e712c21e09f451f416c8976d5b8d02e8c0c2b4bea9a07645e90fc421b63dd755767fd93d3c03b4ec0c4d8fafa059558d08cf11d59750",
+ "result": {
+ "error": "invalid jump destination (PUSH1) 2",
+ "from": "0x70c9217d814985faef62b124420f8dfbddd96433",
+ "gas": "0x37b38",
+ "gasUsed": "0x37b38",
+ "input": "0x51a34eb8000000000000000000000000000000000000000000000027fad02094277c0000",
+ "to": "0xc212e03b9e060e36facad5fd8f4435412ca22e6b",
+ "type": "CALL",
+ "value": "0x0"
+ }
+}
diff --git a/eth/tracers/tracer.go b/eth/tracers/tracer.go
new file mode 100644
index 000000000..f3f848fc1
--- /dev/null
+++ b/eth/tracers/tracer.go
@@ -0,0 +1,618 @@
+// Copyright 2016 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 tracers
+
+import (
+ "encoding/json"
+ "errors"
+ "fmt"
+ "math/big"
+ "sync/atomic"
+ "time"
+ "unsafe"
+
+ "github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/common/hexutil"
+ "github.com/ethereum/go-ethereum/core/vm"
+ "github.com/ethereum/go-ethereum/crypto"
+ "github.com/ethereum/go-ethereum/log"
+ duktape "gopkg.in/olebedev/go-duktape.v3"
+)
+
+// bigIntegerJS is the minified version of https://github.com/peterolson/BigInteger.js.
+const bigIntegerJS = `var bigInt=function(undefined){"use strict";var BASE=1e7,LOG_BASE=7,MAX_INT=9007199254740992,MAX_INT_ARR=smallToArray(MAX_INT),LOG_MAX_INT=Math.log(MAX_INT);function Integer(v,radix){if(typeof v==="undefined")return Integer[0];if(typeof radix!=="undefined")return+radix===10?parseValue(v):parseBase(v,radix);return parseValue(v)}function BigInteger(value,sign){this.value=value;this.sign=sign;this.isSmall=false}BigInteger.prototype=Object.create(Integer.prototype);function SmallInteger(value){this.value=value;this.sign=value<0;this.isSmall=true}SmallInteger.prototype=Object.create(Integer.prototype);function isPrecise(n){return-MAX_INT<n&&n<MAX_INT}function smallToArray(n){if(n<1e7)return[n];if(n<1e14)return[n%1e7,Math.floor(n/1e7)];return[n%1e7,Math.floor(n/1e7)%1e7,Math.floor(n/1e14)]}function arrayToSmall(arr){trim(arr);var length=arr.length;if(length<4&&compareAbs(arr,MAX_INT_ARR)<0){switch(length){case 0:return 0;case 1:return arr[0];case 2:return arr[0]+arr[1]*BASE;default:return arr[0]+(arr[1]+arr[2]*BASE)*BASE}}return arr}function trim(v){var i=v.length;while(v[--i]===0);v.length=i+1}function createArray(length){var x=new Array(length);var i=-1;while(++i<length){x[i]=0}return x}function truncate(n){if(n>0)return Math.floor(n);return Math.ceil(n)}function add(a,b){var l_a=a.length,l_b=b.length,r=new Array(l_a),carry=0,base=BASE,sum,i;for(i=0;i<l_b;i++){sum=a[i]+b[i]+carry;carry=sum>=base?1:0;r[i]=sum-carry*base}while(i<l_a){sum=a[i]+carry;carry=sum===base?1:0;r[i++]=sum-carry*base}if(carry>0)r.push(carry);return r}function addAny(a,b){if(a.length>=b.length)return add(a,b);return add(b,a)}function addSmall(a,carry){var l=a.length,r=new Array(l),base=BASE,sum,i;for(i=0;i<l;i++){sum=a[i]-base+carry;carry=Math.floor(sum/base);r[i]=sum-carry*base;carry+=1}while(carry>0){r[i++]=carry%base;carry=Math.floor(carry/base)}return r}BigInteger.prototype.add=function(v){var n=parseValue(v);if(this.sign!==n.sign){return this.subtract(n.negate())}var a=this.value,b=n.value;if(n.isSmall){return new BigInteger(addSmall(a,Math.abs(b)),this.sign)}return new BigInteger(addAny(a,b),this.sign)};BigInteger.prototype.plus=BigInteger.prototype.add;SmallInteger.prototype.add=function(v){var n=parseValue(v);var a=this.value;if(a<0!==n.sign){return this.subtract(n.negate())}var b=n.value;if(n.isSmall){if(isPrecise(a+b))return new SmallInteger(a+b);b=smallToArray(Math.abs(b))}return new BigInteger(addSmall(b,Math.abs(a)),a<0)};SmallInteger.prototype.plus=SmallInteger.prototype.add;function subtract(a,b){var a_l=a.length,b_l=b.length,r=new Array(a_l),borrow=0,base=BASE,i,difference;for(i=0;i<b_l;i++){difference=a[i]-borrow-b[i];if(difference<0){difference+=base;borrow=1}else borrow=0;r[i]=difference}for(i=b_l;i<a_l;i++){difference=a[i]-borrow;if(difference<0)difference+=base;else{r[i++]=difference;break}r[i]=difference}for(;i<a_l;i++){r[i]=a[i]}trim(r);return r}function subtractAny(a,b,sign){var value;if(compareAbs(a,b)>=0){value=subtract(a,b)}else{value=subtract(b,a);sign=!sign}value=arrayToSmall(value);if(typeof value==="number"){if(sign)value=-value;return new SmallInteger(value)}return new BigInteger(value,sign)}function subtractSmall(a,b,sign){var l=a.length,r=new Array(l),carry=-b,base=BASE,i,difference;for(i=0;i<l;i++){difference=a[i]+carry;carry=Math.floor(difference/base);difference%=base;r[i]=difference<0?difference+base:difference}r=arrayToSmall(r);if(typeof r==="number"){if(sign)r=-r;return new SmallInteger(r)}return new BigInteger(r,sign)}BigInteger.prototype.subtract=function(v){var n=parseValue(v);if(this.sign!==n.sign){return this.add(n.negate())}var a=this.value,b=n.value;if(n.isSmall)return subtractSmall(a,Math.abs(b),this.sign);return subtractAny(a,b,this.sign)};BigInteger.prototype.minus=BigInteger.prototype.subtract;SmallInteger.prototype.subtract=function(v){var n=parseValue(v);var a=this.value;if(a<0!==n.sign){return this.add(n.negate())}var b=n.value;if(n.isSmall){return new SmallInteger(a-b)}return subtractSmall(b,Math.abs(a),a>=0)};SmallInteger.prototype.minus=SmallInteger.prototype.subtract;BigInteger.prototype.negate=function(){return new BigInteger(this.value,!this.sign)};SmallInteger.prototype.negate=function(){var sign=this.sign;var small=new SmallInteger(-this.value);small.sign=!sign;return small};BigInteger.prototype.abs=function(){return new BigInteger(this.value,false)};SmallInteger.prototype.abs=function(){return new SmallInteger(Math.abs(this.value))};function multiplyLong(a,b){var a_l=a.length,b_l=b.length,l=a_l+b_l,r=createArray(l),base=BASE,product,carry,i,a_i,b_j;for(i=0;i<a_l;++i){a_i=a[i];for(var j=0;j<b_l;++j){b_j=b[j];product=a_i*b_j+r[i+j];carry=Math.floor(product/base);r[i+j]=product-carry*base;r[i+j+1]+=carry}}trim(r);return r}function multiplySmall(a,b){var l=a.length,r=new Array(l),base=BASE,carry=0,product,i;for(i=0;i<l;i++){product=a[i]*b+carry;carry=Math.floor(product/base);r[i]=product-carry*base}while(carry>0){r[i++]=carry%base;carry=Math.floor(carry/base)}return r}function shiftLeft(x,n){var r=[];while(n-- >0)r.push(0);return r.concat(x)}function multiplyKaratsuba(x,y){var n=Math.max(x.length,y.length);if(n<=30)return multiplyLong(x,y);n=Math.ceil(n/2);var b=x.slice(n),a=x.slice(0,n),d=y.slice(n),c=y.slice(0,n);var ac=multiplyKaratsuba(a,c),bd=multiplyKaratsuba(b,d),abcd=multiplyKaratsuba(addAny(a,b),addAny(c,d));var product=addAny(addAny(ac,shiftLeft(subtract(subtract(abcd,ac),bd),n)),shiftLeft(bd,2*n));trim(product);return product}function useKaratsuba(l1,l2){return-.012*l1-.012*l2+15e-6*l1*l2>0}BigInteger.prototype.multiply=function(v){var n=parseValue(v),a=this.value,b=n.value,sign=this.sign!==n.sign,abs;if(n.isSmall){if(b===0)return Integer[0];if(b===1)return this;if(b===-1)return this.negate();abs=Math.abs(b);if(abs<BASE){return new BigInteger(multiplySmall(a,abs),sign)}b=smallToArray(abs)}if(useKaratsuba(a.length,b.length))return new BigInteger(multiplyKaratsuba(a,b),sign);return new BigInteger(multiplyLong(a,b),sign)};BigInteger.prototype.times=BigInteger.prototype.multiply;function multiplySmallAndArray(a,b,sign){if(a<BASE){return new BigInteger(multiplySmall(b,a),sign)}return new BigInteger(multiplyLong(b,smallToArray(a)),sign)}SmallInteger.prototype._multiplyBySmall=function(a){if(isPrecise(a.value*this.value)){return new SmallInteger(a.value*this.value)}return multiplySmallAndArray(Math.abs(a.value),smallToArray(Math.abs(this.value)),this.sign!==a.sign)};BigInteger.prototype._multiplyBySmall=function(a){if(a.value===0)return Integer[0];if(a.value===1)return this;if(a.value===-1)return this.negate();return multiplySmallAndArray(Math.abs(a.value),this.value,this.sign!==a.sign)};SmallInteger.prototype.multiply=function(v){return parseValue(v)._multiplyBySmall(this)};SmallInteger.prototype.times=SmallInteger.prototype.multiply;function square(a){var l=a.length,r=createArray(l+l),base=BASE,product,carry,i,a_i,a_j;for(i=0;i<l;i++){a_i=a[i];for(var j=0;j<l;j++){a_j=a[j];product=a_i*a_j+r[i+j];carry=Math.floor(product/base);r[i+j]=product-carry*base;r[i+j+1]+=carry}}trim(r);return r}BigInteger.prototype.square=function(){return new BigInteger(square(this.value),false)};SmallInteger.prototype.square=function(){var value=this.value*this.value;if(isPrecise(value))return new SmallInteger(value);return new BigInteger(square(smallToArray(Math.abs(this.value))),false)};function divMod1(a,b){var a_l=a.length,b_l=b.length,base=BASE,result=createArray(b.length),divisorMostSignificantDigit=b[b_l-1],lambda=Math.ceil(base/(2*divisorMostSignificantDigit)),remainder=multiplySmall(a,lambda),divisor=multiplySmall(b,lambda),quotientDigit,shift,carry,borrow,i,l,q;if(remainder.length<=a_l)remainder.push(0);divisor.push(0);divisorMostSignificantDigit=divisor[b_l-1];for(shift=a_l-b_l;shift>=0;shift--){quotientDigit=base-1;if(remainder[shift+b_l]!==divisorMostSignificantDigit){quotientDigit=Math.floor((remainder[shift+b_l]*base+remainder[shift+b_l-1])/divisorMostSignificantDigit)}carry=0;borrow=0;l=divisor.length;for(i=0;i<l;i++){carry+=quotientDigit*divisor[i];q=Math.floor(carry/base);borrow+=remainder[shift+i]-(carry-q*base);carry=q;if(borrow<0){remainder[shift+i]=borrow+base;borrow=-1}else{remainder[shift+i]=borrow;borrow=0}}while(borrow!==0){quotientDigit-=1;carry=0;for(i=0;i<l;i++){carry+=remainder[shift+i]-base+divisor[i];if(carry<0){remainder[shift+i]=carry+base;carry=0}else{remainder[shift+i]=carry;carry=1}}borrow+=carry}result[shift]=quotientDigit}remainder=divModSmall(remainder,lambda)[0];return[arrayToSmall(result),arrayToSmall(remainder)]}function divMod2(a,b){var a_l=a.length,b_l=b.length,result=[],part=[],base=BASE,guess,xlen,highx,highy,check;while(a_l){part.unshift(a[--a_l]);trim(part);if(compareAbs(part,b)<0){result.push(0);continue}xlen=part.length;highx=part[xlen-1]*base+part[xlen-2];highy=b[b_l-1]*base+b[b_l-2];if(xlen>b_l){highx=(highx+1)*base}guess=Math.ceil(highx/highy);do{check=multiplySmall(b,guess);if(compareAbs(check,part)<=0)break;guess--}while(guess);result.push(guess);part=subtract(part,check)}result.reverse();return[arrayToSmall(result),arrayToSmall(part)]}function divModSmall(value,lambda){var length=value.length,quotient=createArray(length),base=BASE,i,q,remainder,divisor;remainder=0;for(i=length-1;i>=0;--i){divisor=remainder*base+value[i];q=truncate(divisor/lambda);remainder=divisor-q*lambda;quotient[i]=q|0}return[quotient,remainder|0]}function divModAny(self,v){var value,n=parseValue(v);var a=self.value,b=n.value;var quotient;if(b===0)throw new Error("Cannot divide by zero");if(self.isSmall){if(n.isSmall){return[new SmallInteger(truncate(a/b)),new SmallInteger(a%b)]}return[Integer[0],self]}if(n.isSmall){if(b===1)return[self,Integer[0]];if(b==-1)return[self.negate(),Integer[0]];var abs=Math.abs(b);if(abs<BASE){value=divModSmall(a,abs);quotient=arrayToSmall(value[0]);var remainder=value[1];if(self.sign)remainder=-remainder;if(typeof quotient==="number"){if(self.sign!==n.sign)quotient=-quotient;return[new SmallInteger(quotient),new SmallInteger(remainder)]}return[new BigInteger(quotient,self.sign!==n.sign),new SmallInteger(remainder)]}b=smallToArray(abs)}var comparison=compareAbs(a,b);if(comparison===-1)return[Integer[0],self];if(comparison===0)return[Integer[self.sign===n.sign?1:-1],Integer[0]];if(a.length+b.length<=200)value=divMod1(a,b);else value=divMod2(a,b);quotient=value[0];var qSign=self.sign!==n.sign,mod=value[1],mSign=self.sign;if(typeof quotient==="number"){if(qSign)quotient=-quotient;quotient=new SmallInteger(quotient)}else quotient=new BigInteger(quotient,qSign);if(typeof mod==="number"){if(mSign)mod=-mod;mod=new SmallInteger(mod)}else mod=new BigInteger(mod,mSign);return[quotient,mod]}BigInteger.prototype.divmod=function(v){var result=divModAny(this,v);return{quotient:result[0],remainder:result[1]}};SmallInteger.prototype.divmod=BigInteger.prototype.divmod;BigInteger.prototype.divide=function(v){return divModAny(this,v)[0]};SmallInteger.prototype.over=SmallInteger.prototype.divide=BigInteger.prototype.over=BigInteger.prototype.divide;BigInteger.prototype.mod=function(v){return divModAny(this,v)[1]};SmallInteger.prototype.remainder=SmallInteger.prototype.mod=BigInteger.prototype.remainder=BigInteger.prototype.mod;BigInteger.prototype.pow=function(v){var n=parseValue(v),a=this.value,b=n.value,value,x,y;if(b===0)return Integer[1];if(a===0)return Integer[0];if(a===1)return Integer[1];if(a===-1)return n.isEven()?Integer[1]:Integer[-1];if(n.sign){return Integer[0]}if(!n.isSmall)throw new Error("The exponent "+n.toString()+" is too large.");if(this.isSmall){if(isPrecise(value=Math.pow(a,b)))return new SmallInteger(truncate(value))}x=this;y=Integer[1];while(true){if(b&1===1){y=y.times(x);--b}if(b===0)break;b/=2;x=x.square()}return y};SmallInteger.prototype.pow=BigInteger.prototype.pow;BigInteger.prototype.modPow=function(exp,mod){exp=parseValue(exp);mod=parseValue(mod);if(mod.isZero())throw new Error("Cannot take modPow with modulus 0");var r=Integer[1],base=this.mod(mod);while(exp.isPositive()){if(base.isZero())return Integer[0];if(exp.isOdd())r=r.multiply(base).mod(mod);exp=exp.divide(2);base=base.square().mod(mod)}return r};SmallInteger.prototype.modPow=BigInteger.prototype.modPow;function compareAbs(a,b){if(a.length!==b.length){return a.length>b.length?1:-1}for(var i=a.length-1;i>=0;i--){if(a[i]!==b[i])return a[i]>b[i]?1:-1}return 0}BigInteger.prototype.compareAbs=function(v){var n=parseValue(v),a=this.value,b=n.value;if(n.isSmall)return 1;return compareAbs(a,b)};SmallInteger.prototype.compareAbs=function(v){var n=parseValue(v),a=Math.abs(this.value),b=n.value;if(n.isSmall){b=Math.abs(b);return a===b?0:a>b?1:-1}return-1};BigInteger.prototype.compare=function(v){if(v===Infinity){return-1}if(v===-Infinity){return 1}var n=parseValue(v),a=this.value,b=n.value;if(this.sign!==n.sign){return n.sign?1:-1}if(n.isSmall){return this.sign?-1:1}return compareAbs(a,b)*(this.sign?-1:1)};BigInteger.prototype.compareTo=BigInteger.prototype.compare;SmallInteger.prototype.compare=function(v){if(v===Infinity){return-1}if(v===-Infinity){return 1}var n=parseValue(v),a=this.value,b=n.value;if(n.isSmall){return a==b?0:a>b?1:-1}if(a<0!==n.sign){return a<0?-1:1}return a<0?1:-1};SmallInteger.prototype.compareTo=SmallInteger.prototype.compare;BigInteger.prototype.equals=function(v){return this.compare(v)===0};SmallInteger.prototype.eq=SmallInteger.prototype.equals=BigInteger.prototype.eq=BigInteger.prototype.equals;BigInteger.prototype.notEquals=function(v){return this.compare(v)!==0};SmallInteger.prototype.neq=SmallInteger.prototype.notEquals=BigInteger.prototype.neq=BigInteger.prototype.notEquals;BigInteger.prototype.greater=function(v){return this.compare(v)>0};SmallInteger.prototype.gt=SmallInteger.prototype.greater=BigInteger.prototype.gt=BigInteger.prototype.greater;BigInteger.prototype.lesser=function(v){return this.compare(v)<0};SmallInteger.prototype.lt=SmallInteger.prototype.lesser=BigInteger.prototype.lt=BigInteger.prototype.lesser;BigInteger.prototype.greaterOrEquals=function(v){return this.compare(v)>=0};SmallInteger.prototype.geq=SmallInteger.prototype.greaterOrEquals=BigInteger.prototype.geq=BigInteger.prototype.greaterOrEquals;BigInteger.prototype.lesserOrEquals=function(v){return this.compare(v)<=0};SmallInteger.prototype.leq=SmallInteger.prototype.lesserOrEquals=BigInteger.prototype.leq=BigInteger.prototype.lesserOrEquals;BigInteger.prototype.isEven=function(){return(this.value[0]&1)===0};SmallInteger.prototype.isEven=function(){return(this.value&1)===0};BigInteger.prototype.isOdd=function(){return(this.value[0]&1)===1};SmallInteger.prototype.isOdd=function(){return(this.value&1)===1};BigInteger.prototype.isPositive=function(){return!this.sign};SmallInteger.prototype.isPositive=function(){return this.value>0};BigInteger.prototype.isNegative=function(){return this.sign};SmallInteger.prototype.isNegative=function(){return this.value<0};BigInteger.prototype.isUnit=function(){return false};SmallInteger.prototype.isUnit=function(){return Math.abs(this.value)===1};BigInteger.prototype.isZero=function(){return false};SmallInteger.prototype.isZero=function(){return this.value===0};BigInteger.prototype.isDivisibleBy=function(v){var n=parseValue(v);var value=n.value;if(value===0)return false;if(value===1)return true;if(value===2)return this.isEven();return this.mod(n).equals(Integer[0])};SmallInteger.prototype.isDivisibleBy=BigInteger.prototype.isDivisibleBy;function isBasicPrime(v){var n=v.abs();if(n.isUnit())return false;if(n.equals(2)||n.equals(3)||n.equals(5))return true;if(n.isEven()||n.isDivisibleBy(3)||n.isDivisibleBy(5))return false;if(n.lesser(25))return true}BigInteger.prototype.isPrime=function(){var isPrime=isBasicPrime(this);if(isPrime!==undefined)return isPrime;var n=this.abs(),nPrev=n.prev();var a=[2,3,5,7,11,13,17,19],b=nPrev,d,t,i,x;while(b.isEven())b=b.divide(2);for(i=0;i<a.length;i++){x=bigInt(a[i]).modPow(b,n);if(x.equals(Integer[1])||x.equals(nPrev))continue;for(t=true,d=b;t&&d.lesser(nPrev);d=d.multiply(2)){x=x.square().mod(n);if(x.equals(nPrev))t=false}if(t)return false}return true};SmallInteger.prototype.isPrime=BigInteger.prototype.isPrime;BigInteger.prototype.isProbablePrime=function(iterations){var isPrime=isBasicPrime(this);if(isPrime!==undefined)return isPrime;var n=this.abs();var t=iterations===undefined?5:iterations;for(var i=0;i<t;i++){var a=bigInt.randBetween(2,n.minus(2));if(!a.modPow(n.prev(),n).isUnit())return false}return true};SmallInteger.prototype.isProbablePrime=BigInteger.prototype.isProbablePrime;BigInteger.prototype.modInv=function(n){var t=bigInt.zero,newT=bigInt.one,r=parseValue(n),newR=this.abs(),q,lastT,lastR;while(!newR.equals(bigInt.zero)){q=r.divide(newR);lastT=t;lastR=r;t=newT;r=newR;newT=lastT.subtract(q.multiply(newT));newR=lastR.subtract(q.multiply(newR))}if(!r.equals(1))throw new Error(this.toString()+" and "+n.toString()+" are not co-prime");if(t.compare(0)===-1){t=t.add(n)}if(this.isNegative()){return t.negate()}return t};SmallInteger.prototype.modInv=BigInteger.prototype.modInv;BigInteger.prototype.next=function(){var value=this.value;if(this.sign){return subtractSmall(value,1,this.sign)}return new BigInteger(addSmall(value,1),this.sign)};SmallInteger.prototype.next=function(){var value=this.value;if(value+1<MAX_INT)return new SmallInteger(value+1);return new BigInteger(MAX_INT_ARR,false)};BigInteger.prototype.prev=function(){var value=this.value;if(this.sign){return new BigInteger(addSmall(value,1),true)}return subtractSmall(value,1,this.sign)};SmallInteger.prototype.prev=function(){var value=this.value;if(value-1>-MAX_INT)return new SmallInteger(value-1);return new BigInteger(MAX_INT_ARR,true)};var powersOfTwo=[1];while(2*powersOfTwo[powersOfTwo.length-1]<=BASE)powersOfTwo.push(2*powersOfTwo[powersOfTwo.length-1]);var powers2Length=powersOfTwo.length,highestPower2=powersOfTwo[powers2Length-1];function shift_isSmall(n){return(typeof n==="number"||typeof n==="string")&&+Math.abs(n)<=BASE||n instanceof BigInteger&&n.value.length<=1}BigInteger.prototype.shiftLeft=function(n){if(!shift_isSmall(n)){throw new Error(String(n)+" is too large for shifting.")}n=+n;if(n<0)return this.shiftRight(-n);var result=this;while(n>=powers2Length){result=result.multiply(highestPower2);n-=powers2Length-1}return result.multiply(powersOfTwo[n])};SmallInteger.prototype.shiftLeft=BigInteger.prototype.shiftLeft;BigInteger.prototype.shiftRight=function(n){var remQuo;if(!shift_isSmall(n)){throw new Error(String(n)+" is too large for shifting.")}n=+n;if(n<0)return this.shiftLeft(-n);var result=this;while(n>=powers2Length){if(result.isZero())return result;remQuo=divModAny(result,highestPower2);result=remQuo[1].isNegative()?remQuo[0].prev():remQuo[0];n-=powers2Length-1}remQuo=divModAny(result,powersOfTwo[n]);return remQuo[1].isNegative()?remQuo[0].prev():remQuo[0]};SmallInteger.prototype.shiftRight=BigInteger.prototype.shiftRight;function bitwise(x,y,fn){y=parseValue(y);var xSign=x.isNegative(),ySign=y.isNegative();var xRem=xSign?x.not():x,yRem=ySign?y.not():y;var xDigit=0,yDigit=0;var xDivMod=null,yDivMod=null;var result=[];while(!xRem.isZero()||!yRem.isZero()){xDivMod=divModAny(xRem,highestPower2);xDigit=xDivMod[1].toJSNumber();if(xSign){xDigit=highestPower2-1-xDigit}yDivMod=divModAny(yRem,highestPower2);yDigit=yDivMod[1].toJSNumber();if(ySign){yDigit=highestPower2-1-yDigit}xRem=xDivMod[0];yRem=yDivMod[0];result.push(fn(xDigit,yDigit))}var sum=fn(xSign?1:0,ySign?1:0)!==0?bigInt(-1):bigInt(0);for(var i=result.length-1;i>=0;i-=1){sum=sum.multiply(highestPower2).add(bigInt(result[i]))}return sum}BigInteger.prototype.not=function(){return this.negate().prev()};SmallInteger.prototype.not=BigInteger.prototype.not;BigInteger.prototype.and=function(n){return bitwise(this,n,function(a,b){return a&b})};SmallInteger.prototype.and=BigInteger.prototype.and;BigInteger.prototype.or=function(n){return bitwise(this,n,function(a,b){return a|b})};SmallInteger.prototype.or=BigInteger.prototype.or;BigInteger.prototype.xor=function(n){return bitwise(this,n,function(a,b){return a^b})};SmallInteger.prototype.xor=BigInteger.prototype.xor;var LOBMASK_I=1<<30,LOBMASK_BI=(BASE&-BASE)*(BASE&-BASE)|LOBMASK_I;function roughLOB(n){var v=n.value,x=typeof v==="number"?v|LOBMASK_I:v[0]+v[1]*BASE|LOBMASK_BI;return x&-x}function max(a,b){a=parseValue(a);b=parseValue(b);return a.greater(b)?a:b}function min(a,b){a=parseValue(a);b=parseValue(b);return a.lesser(b)?a:b}function gcd(a,b){a=parseValue(a).abs();b=parseValue(b).abs();if(a.equals(b))return a;if(a.isZero())return b;if(b.isZero())return a;var c=Integer[1],d,t;while(a.isEven()&&b.isEven()){d=Math.min(roughLOB(a),roughLOB(b));a=a.divide(d);b=b.divide(d);c=c.multiply(d)}while(a.isEven()){a=a.divide(roughLOB(a))}do{while(b.isEven()){b=b.divide(roughLOB(b))}if(a.greater(b)){t=b;b=a;a=t}b=b.subtract(a)}while(!b.isZero());return c.isUnit()?a:a.multiply(c)}function lcm(a,b){a=parseValue(a).abs();b=parseValue(b).abs();return a.divide(gcd(a,b)).multiply(b)}function randBetween(a,b){a=parseValue(a);b=parseValue(b);var low=min(a,b),high=max(a,b);var range=high.subtract(low).add(1);if(range.isSmall)return low.add(Math.floor(Math.random()*range));var length=range.value.length-1;var result=[],restricted=true;for(var i=length;i>=0;i--){var top=restricted?range.value[i]:BASE;var digit=truncate(Math.random()*top);result.unshift(digit);if(digit<top)restricted=false}result=arrayToSmall(result);return low.add(typeof result==="number"?new SmallInteger(result):new BigInteger(result,false))}var parseBase=function(text,base){var length=text.length;var i;var absBase=Math.abs(base);for(var i=0;i<length;i++){var c=text[i].toLowerCase();if(c==="-")continue;if(/[a-z0-9]/.test(c)){if(/[0-9]/.test(c)&&+c>=absBase){if(c==="1"&&absBase===1)continue;throw new Error(c+" is not a valid digit in base "+base+".")}else if(c.charCodeAt(0)-87>=absBase){throw new Error(c+" is not a valid digit in base "+base+".")}}}if(2<=base&&base<=36){if(length<=LOG_MAX_INT/Math.log(base)){var result=parseInt(text,base);if(isNaN(result)){throw new Error(c+" is not a valid digit in base "+base+".")}return new SmallInteger(parseInt(text,base))}}base=parseValue(base);var digits=[];var isNegative=text[0]==="-";for(i=isNegative?1:0;i<text.length;i++){var c=text[i].toLowerCase(),charCode=c.charCodeAt(0);if(48<=charCode&&charCode<=57)digits.push(parseValue(c));else if(97<=charCode&&charCode<=122)digits.push(parseValue(c.charCodeAt(0)-87));else if(c==="<"){var start=i;do{i++}while(text[i]!==">");digits.push(parseValue(text.slice(start+1,i)))}else throw new Error(c+" is not a valid character")}return parseBaseFromArray(digits,base,isNegative)};function parseBaseFromArray(digits,base,isNegative){var val=Integer[0],pow=Integer[1],i;for(i=digits.length-1;i>=0;i--){val=val.add(digits[i].times(pow));pow=pow.times(base)}return isNegative?val.negate():val}function stringify(digit){var v=digit.value;if(typeof v==="number")v=[v];if(v.length===1&&v[0]<=35){return"0123456789abcdefghijklmnopqrstuvwxyz".charAt(v[0])}return"<"+v+">"}function toBase(n,base){base=bigInt(base);if(base.isZero()){if(n.isZero())return"0";throw new Error("Cannot convert nonzero numbers to base 0.")}if(base.equals(-1)){if(n.isZero())return"0";if(n.isNegative())return new Array(1-n).join("10");return"1"+new Array(+n).join("01")}var minusSign="";if(n.isNegative()&&base.isPositive()){minusSign="-";n=n.abs()}if(base.equals(1)){if(n.isZero())return"0";return minusSign+new Array(+n+1).join(1)}var out=[];var left=n,divmod;while(left.isNegative()||left.compareAbs(base)>=0){divmod=left.divmod(base);left=divmod.quotient;var digit=divmod.remainder;if(digit.isNegative()){digit=base.minus(digit).abs();left=left.next()}out.push(stringify(digit))}out.push(stringify(left));return minusSign+out.reverse().join("")}BigInteger.prototype.toString=function(radix){if(radix===undefined)radix=10;if(radix!==10)return toBase(this,radix);var v=this.value,l=v.length,str=String(v[--l]),zeros="0000000",digit;while(--l>=0){digit=String(v[l]);str+=zeros.slice(digit.length)+digit}var sign=this.sign?"-":"";return sign+str};SmallInteger.prototype.toString=function(radix){if(radix===undefined)radix=10;if(radix!=10)return toBase(this,radix);return String(this.value)};BigInteger.prototype.toJSON=SmallInteger.prototype.toJSON=function(){return this.toString()};BigInteger.prototype.valueOf=function(){return+this.toString()};BigInteger.prototype.toJSNumber=BigInteger.prototype.valueOf;SmallInteger.prototype.valueOf=function(){return this.value};SmallInteger.prototype.toJSNumber=SmallInteger.prototype.valueOf;function parseStringValue(v){if(isPrecise(+v)){var x=+v;if(x===truncate(x))return new SmallInteger(x);throw"Invalid integer: "+v}var sign=v[0]==="-";if(sign)v=v.slice(1);var split=v.split(/e/i);if(split.length>2)throw new Error("Invalid integer: "+split.join("e"));if(split.length===2){var exp=split[1];if(exp[0]==="+")exp=exp.slice(1);exp=+exp;if(exp!==truncate(exp)||!isPrecise(exp))throw new Error("Invalid integer: "+exp+" is not a valid exponent.");var text=split[0];var decimalPlace=text.indexOf(".");if(decimalPlace>=0){exp-=text.length-decimalPlace-1;text=text.slice(0,decimalPlace)+text.slice(decimalPlace+1)}if(exp<0)throw new Error("Cannot include negative exponent part for integers");text+=new Array(exp+1).join("0");v=text}var isValid=/^([0-9][0-9]*)$/.test(v);if(!isValid)throw new Error("Invalid integer: "+v);var r=[],max=v.length,l=LOG_BASE,min=max-l;while(max>0){r.push(+v.slice(min,max));min-=l;if(min<0)min=0;max-=l}trim(r);return new BigInteger(r,sign)}function parseNumberValue(v){if(isPrecise(v)){if(v!==truncate(v))throw new Error(v+" is not an integer.");return new SmallInteger(v)}return parseStringValue(v.toString())}function parseValue(v){if(typeof v==="number"){return parseNumberValue(v)}if(typeof v==="string"){return parseStringValue(v)}return v}for(var i=0;i<1e3;i++){Integer[i]=new SmallInteger(i);if(i>0)Integer[-i]=new SmallInteger(-i)}Integer.one=Integer[1];Integer.zero=Integer[0];Integer.minusOne=Integer[-1];Integer.max=max;Integer.min=min;Integer.gcd=gcd;Integer.lcm=lcm;Integer.isInstance=function(x){return x instanceof BigInteger||x instanceof SmallInteger};Integer.randBetween=randBetween;Integer.fromArray=function(digits,base,isNegative){return parseBaseFromArray(digits.map(parseValue),parseValue(base||10),isNegative)};return Integer}();if(typeof module!=="undefined"&&module.hasOwnProperty("exports")){module.exports=bigInt}if(typeof define==="function"&&define.amd){define("big-integer",[],function(){return bigInt})}; bigInt`
+
+// makeSlice convert an unsafe memory pointer with the given type into a Go byte
+// slice.
+//
+// Note, the returned slice uses the same memory area as the input arguments.
+// If those are duktape stack items, popping them off **will** make the slice
+// contents change.
+func makeSlice(ptr unsafe.Pointer, size uint) []byte {
+ var sl = struct {
+ addr uintptr
+ len int
+ cap int
+ }{uintptr(ptr), int(size), int(size)}
+
+ return *(*[]byte)(unsafe.Pointer(&sl))
+}
+
+// popSlice pops a buffer off the JavaScript stack and returns it as a slice.
+func popSlice(ctx *duktape.Context) []byte {
+ blob := common.CopyBytes(makeSlice(ctx.GetBuffer(-1)))
+ ctx.Pop()
+ return blob
+}
+
+// pushBigInt create a JavaScript BigInteger in the VM.
+func pushBigInt(n *big.Int, ctx *duktape.Context) {
+ ctx.GetGlobalString("bigInt")
+ ctx.PushString(n.String())
+ ctx.Call(1)
+}
+
+// opWrapper provides a JavaScript wrapper around OpCode.
+type opWrapper struct {
+ op vm.OpCode
+}
+
+// pushObject assembles a JSVM object wrapping a swappable opcode and pushes it
+// onto the VM stack.
+func (ow *opWrapper) pushObject(vm *duktape.Context) {
+ obj := vm.PushObject()
+
+ vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushInt(int(ow.op)); return 1 })
+ vm.PutPropString(obj, "toNumber")
+
+ vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushString(ow.op.String()); return 1 })
+ vm.PutPropString(obj, "toString")
+
+ vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushBoolean(ow.op.IsPush()); return 1 })
+ vm.PutPropString(obj, "isPush")
+}
+
+// memoryWrapper provides a JavaScript wrapper around vm.Memory.
+type memoryWrapper struct {
+ memory *vm.Memory
+}
+
+// slice returns the requested range of memory as a byte slice.
+func (mw *memoryWrapper) slice(begin, end int64) []byte {
+ if mw.memory.Len() < int(end) {
+ // TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go
+ // runtime goes belly up https://github.com/golang/go/issues/15639.
+ log.Warn("Tracer accessed out of bound memory", "available", mw.memory.Len(), "offset", begin, "size", end-begin)
+ return nil
+ }
+ return mw.memory.Get(begin, end-begin)
+}
+
+// getUint returns the 32 bytes at the specified address interpreted as a uint.
+func (mw *memoryWrapper) getUint(addr int64) *big.Int {
+ if mw.memory.Len() < int(addr)+32 {
+ // TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go
+ // runtime goes belly up https://github.com/golang/go/issues/15639.
+ log.Warn("Tracer accessed out of bound memory", "available", mw.memory.Len(), "offset", addr, "size", 32)
+ return new(big.Int)
+ }
+ return new(big.Int).SetBytes(mw.memory.GetPtr(addr, 32))
+}
+
+// pushObject assembles a JSVM object wrapping a swappable memory and pushes it
+// onto the VM stack.
+func (mw *memoryWrapper) pushObject(vm *duktape.Context) {
+ obj := vm.PushObject()
+
+ // Generate the `slice` method which takes two ints and returns a buffer
+ vm.PushGoFunction(func(ctx *duktape.Context) int {
+ blob := mw.slice(int64(ctx.GetInt(-2)), int64(ctx.GetInt(-1)))
+ ctx.Pop2()
+
+ ptr := ctx.PushFixedBuffer(len(blob))
+ copy(makeSlice(ptr, uint(len(blob))), blob[:])
+ return 1
+ })
+ vm.PutPropString(obj, "slice")
+
+ // Generate the `getUint` method which takes an int and returns a bigint
+ vm.PushGoFunction(func(ctx *duktape.Context) int {
+ offset := int64(ctx.GetInt(-1))
+ ctx.Pop()
+
+ pushBigInt(mw.getUint(offset), ctx)
+ return 1
+ })
+ vm.PutPropString(obj, "getUint")
+}
+
+// stackWrapper provides a JavaScript wrapper around vm.Stack.
+type stackWrapper struct {
+ stack *vm.Stack
+}
+
+// peek returns the nth-from-the-top element of the stack.
+func (sw *stackWrapper) peek(idx int) *big.Int {
+ if len(sw.stack.Data()) <= idx {
+ // TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go
+ // runtime goes belly up https://github.com/golang/go/issues/15639.
+ log.Warn("Tracer accessed out of bound stack", "size", len(sw.stack.Data()), "index", idx)
+ return new(big.Int)
+ }
+ return sw.stack.Data()[len(sw.stack.Data())-idx-1]
+}
+
+// pushObject assembles a JSVM object wrapping a swappable stack and pushes it
+// onto the VM stack.
+func (sw *stackWrapper) pushObject(vm *duktape.Context) {
+ obj := vm.PushObject()
+
+ vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushInt(len(sw.stack.Data())); return 1 })
+ vm.PutPropString(obj, "length")
+
+ // Generate the `peek` method which takes an int and returns a bigint
+ vm.PushGoFunction(func(ctx *duktape.Context) int {
+ offset := ctx.GetInt(-1)
+ ctx.Pop()
+
+ pushBigInt(sw.peek(offset), ctx)
+ return 1
+ })
+ vm.PutPropString(obj, "peek")
+}
+
+// dbWrapper provides a JavaScript wrapper around vm.Database.
+type dbWrapper struct {
+ db vm.StateDB
+}
+
+// pushObject assembles a JSVM object wrapping a swappable database and pushes it
+// onto the VM stack.
+func (dw *dbWrapper) pushObject(vm *duktape.Context) {
+ obj := vm.PushObject()
+
+ // Push the wrapper for statedb.GetBalance
+ vm.PushGoFunction(func(ctx *duktape.Context) int {
+ pushBigInt(dw.db.GetBalance(common.BytesToAddress(popSlice(ctx))), ctx)
+ return 1
+ })
+ vm.PutPropString(obj, "getBalance")
+
+ // Push the wrapper for statedb.GetNonce
+ vm.PushGoFunction(func(ctx *duktape.Context) int {
+ ctx.PushInt(int(dw.db.GetNonce(common.BytesToAddress(popSlice(ctx)))))
+ return 1
+ })
+ vm.PutPropString(obj, "getNonce")
+
+ // Push the wrapper for statedb.GetCode
+ vm.PushGoFunction(func(ctx *duktape.Context) int {
+ code := dw.db.GetCode(common.BytesToAddress(popSlice(ctx)))
+
+ ptr := ctx.PushFixedBuffer(len(code))
+ copy(makeSlice(ptr, uint(len(code))), code[:])
+ return 1
+ })
+ vm.PutPropString(obj, "getCode")
+
+ // Push the wrapper for statedb.GetState
+ vm.PushGoFunction(func(ctx *duktape.Context) int {
+ hash := popSlice(ctx)
+ addr := popSlice(ctx)
+
+ state := dw.db.GetState(common.BytesToAddress(addr), common.BytesToHash(hash))
+
+ ptr := ctx.PushFixedBuffer(len(state))
+ copy(makeSlice(ptr, uint(len(state))), state[:])
+ return 1
+ })
+ vm.PutPropString(obj, "getState")
+
+ // Push the wrapper for statedb.Exists
+ vm.PushGoFunction(func(ctx *duktape.Context) int {
+ ctx.PushBoolean(dw.db.Exist(common.BytesToAddress(popSlice(ctx))))
+ return 1
+ })
+ vm.PutPropString(obj, "exists")
+}
+
+// contractWrapper provides a JavaScript wrapper around vm.Contract
+type contractWrapper struct {
+ contract *vm.Contract
+}
+
+// pushObject assembles a JSVM object wrapping a swappable contract and pushes it
+// onto the VM stack.
+func (cw *contractWrapper) pushObject(vm *duktape.Context) {
+ obj := vm.PushObject()
+
+ // Push the wrapper for contract.Caller
+ vm.PushGoFunction(func(ctx *duktape.Context) int {
+ ptr := ctx.PushFixedBuffer(20)
+ copy(makeSlice(ptr, 20), cw.contract.Caller().Bytes())
+ return 1
+ })
+ vm.PutPropString(obj, "getCaller")
+
+ // Push the wrapper for contract.Address
+ vm.PushGoFunction(func(ctx *duktape.Context) int {
+ ptr := ctx.PushFixedBuffer(20)
+ copy(makeSlice(ptr, 20), cw.contract.Address().Bytes())
+ return 1
+ })
+ vm.PutPropString(obj, "getAddress")
+
+ // Push the wrapper for contract.Value
+ vm.PushGoFunction(func(ctx *duktape.Context) int {
+ pushBigInt(cw.contract.Value(), ctx)
+ return 1
+ })
+ vm.PutPropString(obj, "getValue")
+
+ // Push the wrapper for contract.Input
+ vm.PushGoFunction(func(ctx *duktape.Context) int {
+ blob := cw.contract.Input
+
+ ptr := ctx.PushFixedBuffer(len(blob))
+ copy(makeSlice(ptr, uint(len(blob))), blob[:])
+ return 1
+ })
+ vm.PutPropString(obj, "getInput")
+}
+
+// Tracer provides an implementation of Tracer that evaluates a Javascript
+// function for each VM execution step.
+type Tracer struct {
+ inited bool // Flag whether the context was already inited from the EVM
+
+ vm *duktape.Context // Javascript VM instance
+
+ tracerObject int // Stack index of the tracer JavaScript object
+ stateObject int // Stack index of the global state to pull arguments from
+
+ opWrapper *opWrapper // Wrapper around the VM opcode
+ stackWrapper *stackWrapper // Wrapper around the VM stack
+ memoryWrapper *memoryWrapper // Wrapper around the VM memory
+ contractWrapper *contractWrapper // Wrapper around the contract object
+ dbWrapper *dbWrapper // Wrapper around the VM environment
+
+ pcValue *uint // Swappable pc value wrapped by a log accessor
+ gasValue *uint // Swappable gas value wrapped by a log accessor
+ costValue *uint // Swappable cost value wrapped by a log accessor
+ depthValue *uint // Swappable depth value wrapped by a log accessor
+ errorValue *string // Swappable error value wrapped by a log accessor
+
+ ctx map[string]interface{} // Transaction context gathered throughout execution
+ err error // Error, if one has occurred
+
+ interrupt uint32 // Atomic flag to signal execution interruption
+ reason error // Textual reason for the interruption
+}
+
+// New instantiates a new tracer instance. code specifies a Javascript snippet,
+// which must evaluate to an expression returning an object with 'step', 'fault'
+// and 'result' functions.
+func New(code string) (*Tracer, error) {
+ // Resolve any tracers by name and assemble the tracer object
+ if tracer, ok := tracer(code); ok {
+ code = tracer
+ }
+ tracer := &Tracer{
+ vm: duktape.New(),
+ ctx: make(map[string]interface{}),
+ opWrapper: new(opWrapper),
+ stackWrapper: new(stackWrapper),
+ memoryWrapper: new(memoryWrapper),
+ contractWrapper: new(contractWrapper),
+ dbWrapper: new(dbWrapper),
+ pcValue: new(uint),
+ gasValue: new(uint),
+ costValue: new(uint),
+ depthValue: new(uint),
+ }
+ // Set up builtins for this environment
+ tracer.vm.PushGlobalGoFunction("toHex", func(ctx *duktape.Context) int {
+ ctx.PushString(hexutil.Encode(popSlice(ctx)))
+ return 1
+ })
+ tracer.vm.PushGlobalGoFunction("toWord", func(ctx *duktape.Context) int {
+ var word common.Hash
+ if ptr, size := ctx.GetBuffer(-1); ptr != nil {
+ word = common.BytesToHash(makeSlice(ptr, size))
+ } else {
+ word = common.HexToHash(ctx.GetString(-1))
+ }
+ ctx.Pop()
+ copy(makeSlice(ctx.PushFixedBuffer(32), 32), word[:])
+ return 1
+ })
+ tracer.vm.PushGlobalGoFunction("toAddress", func(ctx *duktape.Context) int {
+ var addr common.Address
+ if ptr, size := ctx.GetBuffer(-1); ptr != nil {
+ addr = common.BytesToAddress(makeSlice(ptr, size))
+ } else {
+ addr = common.HexToAddress(ctx.GetString(-1))
+ }
+ ctx.Pop()
+ copy(makeSlice(ctx.PushFixedBuffer(20), 20), addr[:])
+ return 1
+ })
+ tracer.vm.PushGlobalGoFunction("toContract", func(ctx *duktape.Context) int {
+ var from common.Address
+ if ptr, size := ctx.GetBuffer(-2); ptr != nil {
+ from = common.BytesToAddress(makeSlice(ptr, size))
+ } else {
+ from = common.HexToAddress(ctx.GetString(-2))
+ }
+ nonce := uint64(ctx.GetInt(-1))
+ ctx.Pop2()
+
+ contract := crypto.CreateAddress(from, nonce)
+ copy(makeSlice(ctx.PushFixedBuffer(20), 20), contract[:])
+ return 1
+ })
+ tracer.vm.PushGlobalGoFunction("isPrecompiled", func(ctx *duktape.Context) int {
+ _, ok := vm.PrecompiledContractsByzantium[common.BytesToAddress(popSlice(ctx))]
+ ctx.PushBoolean(ok)
+ return 1
+ })
+ tracer.vm.PushGlobalGoFunction("slice", func(ctx *duktape.Context) int {
+ start, end := ctx.GetInt(-2), ctx.GetInt(-1)
+ ctx.Pop2()
+
+ blob := popSlice(ctx)
+ size := end - start
+
+ if start < 0 || start > end || end > len(blob) {
+ // TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go
+ // runtime goes belly up https://github.com/golang/go/issues/15639.
+ log.Warn("Tracer accessed out of bound memory", "available", len(blob), "offset", start, "size", size)
+ ctx.PushFixedBuffer(0)
+ return 1
+ }
+ copy(makeSlice(ctx.PushFixedBuffer(size), uint(size)), blob[start:end])
+ return 1
+ })
+ // Push the JavaScript tracer as object #0 onto the JSVM stack and validate it
+ if err := tracer.vm.PevalString("(" + code + ")"); err != nil {
+ log.Warn("Failed to compile tracer", "err", err)
+ return nil, err
+ }
+ tracer.tracerObject = 0 // yeah, nice, eval can't return the index itself
+
+ if !tracer.vm.GetPropString(tracer.tracerObject, "step") {
+ return nil, fmt.Errorf("Trace object must expose a function step()")
+ }
+ tracer.vm.Pop()
+
+ if !tracer.vm.GetPropString(tracer.tracerObject, "fault") {
+ return nil, fmt.Errorf("Trace object must expose a function fault()")
+ }
+ tracer.vm.Pop()
+
+ if !tracer.vm.GetPropString(tracer.tracerObject, "result") {
+ return nil, fmt.Errorf("Trace object must expose a function result()")
+ }
+ tracer.vm.Pop()
+
+ // Tracer is valid, inject the big int library to access large numbers
+ tracer.vm.EvalString(bigIntegerJS)
+ tracer.vm.PutGlobalString("bigInt")
+
+ // Push the global environment state as object #1 into the JSVM stack
+ tracer.stateObject = tracer.vm.PushObject()
+
+ logObject := tracer.vm.PushObject()
+
+ tracer.opWrapper.pushObject(tracer.vm)
+ tracer.vm.PutPropString(logObject, "op")
+
+ tracer.stackWrapper.pushObject(tracer.vm)
+ tracer.vm.PutPropString(logObject, "stack")
+
+ tracer.memoryWrapper.pushObject(tracer.vm)
+ tracer.vm.PutPropString(logObject, "memory")
+
+ tracer.contractWrapper.pushObject(tracer.vm)
+ tracer.vm.PutPropString(logObject, "contract")
+
+ tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushUint(*tracer.pcValue); return 1 })
+ tracer.vm.PutPropString(logObject, "getPC")
+
+ tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushUint(*tracer.gasValue); return 1 })
+ tracer.vm.PutPropString(logObject, "getGas")
+
+ tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushUint(*tracer.costValue); return 1 })
+ tracer.vm.PutPropString(logObject, "getCost")
+
+ tracer.vm.PushGoFunction(func(ctx *duktape.Context) int { ctx.PushUint(*tracer.depthValue); return 1 })
+ tracer.vm.PutPropString(logObject, "getDepth")
+
+ tracer.vm.PushGoFunction(func(ctx *duktape.Context) int {
+ if tracer.errorValue != nil {
+ ctx.PushString(*tracer.errorValue)
+ } else {
+ ctx.PushUndefined()
+ }
+ return 1
+ })
+ tracer.vm.PutPropString(logObject, "getError")
+
+ tracer.vm.PutPropString(tracer.stateObject, "log")
+
+ tracer.dbWrapper.pushObject(tracer.vm)
+ tracer.vm.PutPropString(tracer.stateObject, "db")
+
+ return tracer, nil
+}
+
+// Stop terminates execution of the tracer at the first opportune moment.
+func (jst *Tracer) Stop(err error) {
+ jst.reason = err
+ atomic.StoreUint32(&jst.interrupt, 1)
+}
+
+// call executes a method on a JS object, catching any errors, formatting and
+// returning them as error objects.
+func (jst *Tracer) call(method string, args ...string) (json.RawMessage, error) {
+ // Execute the JavaScript call and return any error
+ jst.vm.PushString(method)
+ for _, arg := range args {
+ jst.vm.GetPropString(jst.stateObject, arg)
+ }
+ code := jst.vm.PcallProp(jst.tracerObject, len(args))
+ defer jst.vm.Pop()
+
+ if code != 0 {
+ err := jst.vm.SafeToString(-1)
+ return nil, errors.New(err)
+ }
+ // No error occurred, extract return value and return
+ return json.RawMessage(jst.vm.JsonEncode(-1)), nil
+}
+
+func wrapError(context string, err error) error {
+ var message string
+ switch err := err.(type) {
+ default:
+ message = err.Error()
+ }
+ return fmt.Errorf("%v in server-side tracer function '%v'", message, context)
+}
+
+// CaptureStart implements the Tracer interface to initialize the tracing operation.
+func (jst *Tracer) CaptureStart(from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) error {
+ jst.ctx["type"] = "CALL"
+ if create {
+ jst.ctx["type"] = "CREATE"
+ }
+ jst.ctx["from"] = from
+ jst.ctx["to"] = to
+ jst.ctx["input"] = input
+ jst.ctx["gas"] = gas
+ jst.ctx["value"] = value
+
+ return nil
+}
+
+// CaptureState implements the Tracer interface to trace a single step of VM execution.
+func (jst *Tracer) CaptureState(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, memory *vm.Memory, stack *vm.Stack, contract *vm.Contract, depth int, err error) error {
+ if jst.err == nil {
+ // Initialize the context if it wasn't done yet
+ if !jst.inited {
+ jst.ctx["block"] = env.BlockNumber.Uint64()
+ jst.inited = true
+ }
+ // If tracing was interrupted, set the error and stop
+ if atomic.LoadUint32(&jst.interrupt) > 0 {
+ jst.err = jst.reason
+ return nil
+ }
+ jst.opWrapper.op = op
+ jst.stackWrapper.stack = stack
+ jst.memoryWrapper.memory = memory
+ jst.contractWrapper.contract = contract
+ jst.dbWrapper.db = env.StateDB
+
+ *jst.pcValue = uint(pc)
+ *jst.gasValue = uint(gas)
+ *jst.costValue = uint(cost)
+ *jst.depthValue = uint(depth)
+
+ jst.errorValue = nil
+ if err != nil {
+ jst.errorValue = new(string)
+ *jst.errorValue = err.Error()
+ }
+ _, err := jst.call("step", "log", "db")
+ if err != nil {
+ jst.err = wrapError("step", err)
+ }
+ }
+ return nil
+}
+
+// CaptureFault implements the Tracer interface to trace an execution fault
+// while running an opcode.
+func (jst *Tracer) CaptureFault(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, memory *vm.Memory, stack *vm.Stack, contract *vm.Contract, depth int, err error) error {
+ if jst.err == nil {
+ // Apart from the error, everything matches the previous invocation
+ jst.errorValue = new(string)
+ *jst.errorValue = err.Error()
+
+ _, err := jst.call("fault", "log", "db")
+ if err != nil {
+ jst.err = wrapError("fault", err)
+ }
+ }
+ return nil
+}
+
+// CaptureEnd is called after the call finishes to finalize the tracing.
+func (jst *Tracer) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) error {
+ jst.ctx["output"] = output
+ jst.ctx["gasUsed"] = gasUsed
+ jst.ctx["time"] = t.String()
+
+ if err != nil {
+ jst.ctx["error"] = err.Error()
+ }
+ return nil
+}
+
+// GetResult calls the Javascript 'result' function and returns its value, or any accumulated error
+func (jst *Tracer) GetResult() (json.RawMessage, error) {
+ // Transform the context into a JavaScript object and inject into the state
+ obj := jst.vm.PushObject()
+
+ for key, val := range jst.ctx {
+ switch val := val.(type) {
+ case uint64:
+ jst.vm.PushUint(uint(val))
+
+ case string:
+ jst.vm.PushString(val)
+
+ case []byte:
+ ptr := jst.vm.PushFixedBuffer(len(val))
+ copy(makeSlice(ptr, uint(len(val))), val[:])
+
+ case common.Address:
+ ptr := jst.vm.PushFixedBuffer(20)
+ copy(makeSlice(ptr, 20), val[:])
+
+ case *big.Int:
+ pushBigInt(val, jst.vm)
+
+ default:
+ panic(fmt.Sprintf("unsupported type: %T", val))
+ }
+ jst.vm.PutPropString(obj, key)
+ }
+ jst.vm.PutPropString(jst.stateObject, "ctx")
+
+ // Finalize the trace and return the results
+ result, err := jst.call("result", "ctx", "db")
+ if err != nil {
+ jst.err = wrapError("result", err)
+ }
+ // Clean up the JavaScript environment
+ jst.vm.DestroyHeap()
+ jst.vm.Destroy()
+
+ return result, jst.err
+}
diff --git a/eth/tracers/tracer_test.go b/eth/tracers/tracer_test.go
new file mode 100644
index 000000000..7224a1489
--- /dev/null
+++ b/eth/tracers/tracer_test.go
@@ -0,0 +1,140 @@
+// Copyright 2016 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 tracers
+
+import (
+ "bytes"
+ "encoding/json"
+ "errors"
+ "math/big"
+ "testing"
+ "time"
+
+ "github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/core/vm"
+ "github.com/ethereum/go-ethereum/params"
+)
+
+type account struct{}
+
+func (account) SubBalance(amount *big.Int) {}
+func (account) AddBalance(amount *big.Int) {}
+func (account) SetAddress(common.Address) {}
+func (account) Value() *big.Int { return nil }
+func (account) SetBalance(*big.Int) {}
+func (account) SetNonce(uint64) {}
+func (account) Balance() *big.Int { return nil }
+func (account) Address() common.Address { return common.Address{} }
+func (account) ReturnGas(*big.Int) {}
+func (account) SetCode(common.Hash, []byte) {}
+func (account) ForEachStorage(cb func(key, value common.Hash) bool) {}
+
+func runTrace(tracer *Tracer) (json.RawMessage, error) {
+ env := vm.NewEVM(vm.Context{BlockNumber: big.NewInt(1)}, nil, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer})
+
+ contract := vm.NewContract(account{}, account{}, big.NewInt(0), 10000)
+ contract.Code = []byte{byte(vm.PUSH1), 0x1, byte(vm.PUSH1), 0x1, 0x0}
+
+ _, err := env.Interpreter().Run(contract, []byte{})
+ if err != nil {
+ return nil, err
+ }
+ return tracer.GetResult()
+}
+
+func TestTracing(t *testing.T) {
+ tracer, err := New("{count: 0, step: function() { this.count += 1; }, fault: function() {}, result: function() { return this.count; }}")
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ ret, err := runTrace(tracer)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if !bytes.Equal(ret, []byte("3")) {
+ t.Errorf("Expected return value to be 3, got %s", string(ret))
+ }
+}
+
+func TestStack(t *testing.T) {
+ tracer, err := New("{depths: [], step: function(log) { this.depths.push(log.stack.length()); }, fault: function() {}, result: function() { return this.depths; }}")
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ ret, err := runTrace(tracer)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if !bytes.Equal(ret, []byte("[0,1,2]")) {
+ t.Errorf("Expected return value to be [0,1,2], got %s", string(ret))
+ }
+}
+
+func TestOpcodes(t *testing.T) {
+ tracer, err := New("{opcodes: [], step: function(log) { this.opcodes.push(log.op.toString()); }, fault: function() {}, result: function() { return this.opcodes; }}")
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ ret, err := runTrace(tracer)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if !bytes.Equal(ret, []byte("[\"PUSH1\",\"PUSH1\",\"STOP\"]")) {
+ t.Errorf("Expected return value to be [\"PUSH1\",\"PUSH1\",\"STOP\"], got %s", string(ret))
+ }
+}
+
+func TestHalt(t *testing.T) {
+ t.Skip("duktape doesn't support abortion")
+
+ timeout := errors.New("stahp")
+ tracer, err := New("{step: function() { while(1); }, result: function() { return null; }}")
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ go func() {
+ time.Sleep(1 * time.Second)
+ tracer.Stop(timeout)
+ }()
+
+ if _, err = runTrace(tracer); err.Error() != "stahp in server-side tracer function 'step'" {
+ t.Errorf("Expected timeout error, got %v", err)
+ }
+}
+
+func TestHaltBetweenSteps(t *testing.T) {
+ tracer, err := New("{step: function() {}, fault: function() {}, result: function() { return null; }}")
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ env := vm.NewEVM(vm.Context{BlockNumber: big.NewInt(1)}, nil, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer})
+ contract := vm.NewContract(&account{}, &account{}, big.NewInt(0), 0)
+
+ tracer.CaptureState(env, 0, 0, 0, 0, nil, nil, contract, 0, nil)
+ timeout := errors.New("stahp")
+ tracer.Stop(timeout)
+ tracer.CaptureState(env, 0, 0, 0, 0, nil, nil, contract, 0, nil)
+
+ if _, err := tracer.GetResult(); err.Error() != timeout.Error() {
+ t.Errorf("Expected timeout error, got %v", err)
+ }
+}
diff --git a/eth/tracers/tracers.go b/eth/tracers/tracers.go
new file mode 100644
index 000000000..4e1ef23ad
--- /dev/null
+++ b/eth/tracers/tracers.go
@@ -0,0 +1,53 @@
+// Copyright 2017 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 tracers is a collection of JavaScript transaction tracers.
+package tracers
+
+import (
+ "strings"
+ "unicode"
+
+ "github.com/ethereum/go-ethereum/eth/tracers/internal/tracers"
+)
+
+// all contains all the built in JavaScript tracers by name.
+var all = make(map[string]string)
+
+// camel converts a snake cased input string into a camel cased output.
+func camel(str string) string {
+ pieces := strings.Split(str, "_")
+ for i := 1; i < len(pieces); i++ {
+ pieces[i] = string(unicode.ToUpper(rune(pieces[i][0]))) + pieces[i][1:]
+ }
+ return strings.Join(pieces, "")
+}
+
+// init retrieves the JavaScript transaction tracers included in go-ethereum.
+func init() {
+ for _, file := range tracers.AssetNames() {
+ name := camel(strings.TrimSuffix(file, ".js"))
+ all[name] = string(tracers.MustAsset(file))
+ }
+}
+
+// tracer retrieves a specific JavaScript tracer by name.
+func tracer(name string) (string, bool) {
+ if tracer, ok := all[name]; ok {
+ return tracer, true
+ }
+ return "", false
+}
diff --git a/eth/tracers/tracers_test.go b/eth/tracers/tracers_test.go
new file mode 100644
index 000000000..139280797
--- /dev/null
+++ b/eth/tracers/tracers_test.go
@@ -0,0 +1,194 @@
+// Copyright 2017 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 tracers
+
+import (
+ "encoding/json"
+ "io/ioutil"
+ "math/big"
+ "path/filepath"
+ "reflect"
+ "strings"
+ "testing"
+
+ "github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/common/hexutil"
+ "github.com/ethereum/go-ethereum/common/math"
+ "github.com/ethereum/go-ethereum/core"
+ "github.com/ethereum/go-ethereum/core/types"
+ "github.com/ethereum/go-ethereum/core/vm"
+ "github.com/ethereum/go-ethereum/ethdb"
+ "github.com/ethereum/go-ethereum/rlp"
+ "github.com/ethereum/go-ethereum/tests"
+)
+
+// To generate a new callTracer test, copy paste the makeTest method below into
+// a Geth console and call it with a transaction hash you which to export.
+
+/*
+// makeTest generates a callTracer test by running a prestate reassembled and a
+// call trace run, assembling all the gathered information into a test case.
+var makeTest = function(tx, rewind) {
+ // Generate the genesis block from the block, transaction and prestate data
+ var block = eth.getBlock(eth.getTransaction(tx).blockHash);
+ var genesis = eth.getBlock(block.parentHash);
+
+ delete genesis.gasUsed;
+ delete genesis.logsBloom;
+ delete genesis.parentHash;
+ delete genesis.receiptsRoot;
+ delete genesis.sha3Uncles;
+ delete genesis.size;
+ delete genesis.transactions;
+ delete genesis.transactionsRoot;
+ delete genesis.uncles;
+
+ genesis.gasLimit = genesis.gasLimit.toString();
+ genesis.number = genesis.number.toString();
+ genesis.timestamp = genesis.timestamp.toString();
+
+ genesis.alloc = debug.traceTransaction(tx, {tracer: "prestateTracer", rewind: rewind});
+ for (var key in genesis.alloc) {
+ genesis.alloc[key].nonce = genesis.alloc[key].nonce.toString();
+ }
+ genesis.config = admin.nodeInfo.protocols.eth.config;
+
+ // Generate the call trace and produce the test input
+ var result = debug.traceTransaction(tx, {tracer: "callTracer", rewind: rewind});
+ delete result.time;
+
+ console.log(JSON.stringify({
+ genesis: genesis,
+ context: {
+ number: block.number.toString(),
+ difficulty: block.difficulty,
+ timestamp: block.timestamp.toString(),
+ gasLimit: block.gasLimit.toString(),
+ miner: block.miner,
+ },
+ input: eth.getRawTransaction(tx),
+ result: result,
+ }, null, 2));
+}
+*/
+
+// callTrace is the result of a callTracer run.
+type callTrace struct {
+ Type string `json:"type"`
+ From common.Address `json:"from"`
+ To common.Address `json:"to"`
+ Input hexutil.Bytes `json:"input"`
+ Output hexutil.Bytes `json:"output"`
+ Gas *hexutil.Uint64 `json:"gas,omitempty"`
+ GasUsed *hexutil.Uint64 `json:"gasUsed,omitempty"`
+ Value *hexutil.Big `json:"value,omitempty"`
+ Error string `json:"error,omitempty"`
+ Calls []callTrace `json:"calls,omitempty"`
+}
+
+type callContext struct {
+ Number math.HexOrDecimal64 `json:"number"`
+ Difficulty *math.HexOrDecimal256 `json:"difficulty"`
+ Time math.HexOrDecimal64 `json:"timestamp"`
+ GasLimit math.HexOrDecimal64 `json:"gasLimit"`
+ Miner common.Address `json:"miner"`
+}
+
+// callTracerTest defines a single test to check the call tracer against.
+type callTracerTest struct {
+ Genesis *core.Genesis `json:"genesis"`
+ Context *callContext `json:"context"`
+ Input string `json:"input"`
+ Result *callTrace `json:"result"`
+}
+
+// Iterates over all the input-output datasets in the tracer test harness and
+// runs the JavaScript tracers against them.
+func TestCallTracer(t *testing.T) {
+ files, err := ioutil.ReadDir("testdata")
+ if err != nil {
+ t.Fatalf("failed to retrieve tracer test suite: %v", err)
+ }
+ for _, file := range files {
+ if !strings.HasPrefix(file.Name(), "call_tracer_") {
+ continue
+ }
+ file := file // capture range variable
+ t.Run(camel(strings.TrimSuffix(strings.TrimPrefix(file.Name(), "call_tracer_"), ".json")), func(t *testing.T) {
+ t.Parallel()
+
+ // Call tracer test found, read if from disk
+ blob, err := ioutil.ReadFile(filepath.Join("testdata", file.Name()))
+ if err != nil {
+ t.Fatalf("failed to read testcase: %v", err)
+ }
+ test := new(callTracerTest)
+ if err := json.Unmarshal(blob, test); err != nil {
+ t.Fatalf("failed to parse testcase: %v", err)
+ }
+ // Configure a blockchain with the given prestate
+ tx := new(types.Transaction)
+ if err := rlp.DecodeBytes(common.FromHex(test.Input), tx); err != nil {
+ t.Fatalf("failed to parse testcase input: %v", err)
+ }
+ signer := types.MakeSigner(test.Genesis.Config, new(big.Int).SetUint64(uint64(test.Context.Number)))
+ origin, _ := signer.Sender(tx)
+
+ context := vm.Context{
+ CanTransfer: core.CanTransfer,
+ Transfer: core.Transfer,
+ Origin: origin,
+ Coinbase: test.Context.Miner,
+ BlockNumber: new(big.Int).SetUint64(uint64(test.Context.Number)),
+ Time: new(big.Int).SetUint64(uint64(test.Context.Time)),
+ Difficulty: (*big.Int)(test.Context.Difficulty),
+ GasLimit: new(big.Int).SetUint64(uint64(test.Context.GasLimit)),
+ GasPrice: tx.GasPrice(),
+ }
+ db, _ := ethdb.NewMemDatabase()
+ statedb := tests.MakePreState(db, test.Genesis.Alloc)
+
+ // Create the tracer, the EVM environment and run it
+ tracer, err := New("callTracer")
+ if err != nil {
+ t.Fatalf("failed to create call tracer: %v", err)
+ }
+ evm := vm.NewEVM(context, statedb, test.Genesis.Config, vm.Config{Debug: true, Tracer: tracer})
+
+ msg, err := tx.AsMessage(signer)
+ if err != nil {
+ t.Fatalf("failed to prepare transaction for tracing: %v", err)
+ }
+ st := core.NewStateTransition(evm, msg, new(core.GasPool).AddGas(tx.Gas()))
+ if _, _, _, _, err = st.TransitionDb(); err != nil {
+ t.Fatalf("failed to execute transaction: %v", err)
+ }
+ // Retrieve the trace result and compare against the etalon
+ res, err := tracer.GetResult()
+ if err != nil {
+ t.Fatalf("failed to retrieve trace result: %v", err)
+ }
+ ret := new(callTrace)
+ if err := json.Unmarshal(res, ret); err != nil {
+ t.Fatalf("failed to unmarshal trace result: %v", err)
+ }
+ if !reflect.DeepEqual(ret, test.Result) {
+ t.Fatalf("trace mismatch: have %+v, want %+v", ret, test.Result)
+ }
+ })
+ }
+}
--
cgit v1.2.3
From 5f8888e11606296c9582496974c0f6b96a882146 Mon Sep 17 00:00:00 2001
From: gary rong <garyrong0905@gmail.com>
Date: Fri, 22 Dec 2017 20:37:50 +0800
Subject: accounts, consensus, core, eth: make chain maker consensus agnostic
(#15497)
* accounts, consensus, core, eth: make chain maker consensus agnostic
* consensus, core: move CalcDifficulty to Engine interface
* consensus: add docs for calcDifficulty function
* consensus, core: minor comment fixups
---
eth/downloader/downloader_test.go | 3 ++-
eth/fetcher/fetcher_test.go | 3 ++-
eth/filters/filter_system_test.go | 3 ++-
eth/filters/filter_test.go | 5 +++--
eth/handler_test.go | 2 +-
eth/helper_test.go | 2 +-
6 files changed, 11 insertions(+), 7 deletions(-)
(limited to 'eth')
diff --git a/eth/downloader/downloader_test.go b/eth/downloader/downloader_test.go
index 7d1cc8c34..e14264944 100644
--- a/eth/downloader/downloader_test.go
+++ b/eth/downloader/downloader_test.go
@@ -26,6 +26,7 @@ import (
"time"
"github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
@@ -107,7 +108,7 @@ func newTester() *downloadTester {
// reassembly.
func (dl *downloadTester) makeChain(n int, seed byte, parent *types.Block, parentReceipts types.Receipts, heavy bool) ([]common.Hash, map[common.Hash]*types.Header, map[common.Hash]*types.Block, map[common.Hash]types.Receipts) {
// Generate the block chain
- blocks, receipts := core.GenerateChain(params.TestChainConfig, parent, dl.peerDb, n, func(i int, block *core.BlockGen) {
+ blocks, receipts := core.GenerateChain(params.TestChainConfig, parent, ethash.NewFaker(), dl.peerDb, n, func(i int, block *core.BlockGen) {
block.SetCoinbase(common.Address{seed})
// If a heavy chain is requested, delay blocks to raise difficulty
diff --git a/eth/fetcher/fetcher_test.go b/eth/fetcher/fetcher_test.go
index 9889e6cc5..e6a639417 100644
--- a/eth/fetcher/fetcher_test.go
+++ b/eth/fetcher/fetcher_test.go
@@ -25,6 +25,7 @@ import (
"time"
"github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
@@ -45,7 +46,7 @@ var (
// contains a transaction and every 5th an uncle to allow testing correct block
// reassembly.
func makeChain(n int, seed byte, parent *types.Block) ([]common.Hash, map[common.Hash]*types.Block) {
- blocks, _ := core.GenerateChain(params.TestChainConfig, parent, testdb, n, func(i int, block *core.BlockGen) {
+ blocks, _ := core.GenerateChain(params.TestChainConfig, parent, ethash.NewFaker(), testdb, n, func(i int, block *core.BlockGen) {
block.SetCoinbase(common.Address{seed})
// If the block number is multiple of 3, send a bonus transaction to the miner
diff --git a/eth/filters/filter_system_test.go b/eth/filters/filter_system_test.go
index 7da114fda..a5025db3d 100644
--- a/eth/filters/filter_system_test.go
+++ b/eth/filters/filter_system_test.go
@@ -26,6 +26,7 @@ import (
"time"
"github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/bloombits"
"github.com/ethereum/go-ethereum/core/types"
@@ -136,7 +137,7 @@ func TestBlockSubscription(t *testing.T) {
backend = &testBackend{mux, db, 0, txFeed, rmLogsFeed, logsFeed, chainFeed}
api = NewPublicFilterAPI(backend, false)
genesis = new(core.Genesis).MustCommit(db)
- chain, _ = core.GenerateChain(params.TestChainConfig, genesis, db, 10, func(i int, gen *core.BlockGen) {})
+ chain, _ = core.GenerateChain(params.TestChainConfig, genesis, ethash.NewFaker(), db, 10, func(i int, gen *core.BlockGen) {})
chainEvents = []core.ChainEvent{}
)
diff --git a/eth/filters/filter_test.go b/eth/filters/filter_test.go
index 11235e95a..729d0afc8 100644
--- a/eth/filters/filter_test.go
+++ b/eth/filters/filter_test.go
@@ -24,6 +24,7 @@ import (
"testing"
"github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
@@ -65,7 +66,7 @@ func BenchmarkFilters(b *testing.B) {
defer db.Close()
genesis := core.GenesisBlockForTesting(db, addr1, big.NewInt(1000000))
- chain, receipts := core.GenerateChain(params.TestChainConfig, genesis, db, 100010, func(i int, gen *core.BlockGen) {
+ chain, receipts := core.GenerateChain(params.TestChainConfig, genesis, ethash.NewFaker(), db, 100010, func(i int, gen *core.BlockGen) {
switch i {
case 2403:
receipt := makeReceipt(addr1)
@@ -132,7 +133,7 @@ func TestFilters(t *testing.T) {
defer db.Close()
genesis := core.GenesisBlockForTesting(db, addr, big.NewInt(1000000))
- chain, receipts := core.GenerateChain(params.TestChainConfig, genesis, db, 1000, func(i int, gen *core.BlockGen) {
+ chain, receipts := core.GenerateChain(params.TestChainConfig, genesis, ethash.NewFaker(), db, 1000, func(i int, gen *core.BlockGen) {
switch i {
case 1:
receipt := types.NewReceipt(nil, false, new(big.Int))
diff --git a/eth/handler_test.go b/eth/handler_test.go
index 6752cd2a8..ebbd83c3a 100644
--- a/eth/handler_test.go
+++ b/eth/handler_test.go
@@ -498,7 +498,7 @@ func testDAOChallenge(t *testing.T, localForked, remoteForked bool, timeout bool
}
// Create a block to reply to the challenge if no timeout is simulated
if !timeout {
- blocks, _ := core.GenerateChain(¶ms.ChainConfig{}, genesis, db, 1, func(i int, block *core.BlockGen) {
+ blocks, _ := core.GenerateChain(¶ms.ChainConfig{}, genesis, ethash.NewFaker(), db, 1, func(i int, block *core.BlockGen) {
if remoteForked {
block.SetExtra(params.DAOForkBlockExtra)
}
diff --git a/eth/helper_test.go b/eth/helper_test.go
index f02242b15..bfb003c8b 100644
--- a/eth/helper_test.go
+++ b/eth/helper_test.go
@@ -61,7 +61,7 @@ func newTestProtocolManager(mode downloader.SyncMode, blocks int, generator func
genesis = gspec.MustCommit(db)
blockchain, _ = core.NewBlockChain(db, gspec.Config, engine, vm.Config{})
)
- chain, _ := core.GenerateChain(gspec.Config, genesis, db, blocks, generator)
+ chain, _ := core.GenerateChain(gspec.Config, genesis, ethash.NewFaker(), db, blocks, generator)
if _, err := blockchain.InsertChain(chain); err != nil {
panic(err)
}
--
cgit v1.2.3
From f7ca03ae875c7c78191bf38f6ce1cc4bbe5361c6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Thu, 28 Dec 2017 15:18:34 +0200
Subject: eth, les, light: expose chain config in les node info too (#15732)
---
eth/handler.go | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
(limited to 'eth')
diff --git a/eth/handler.go b/eth/handler.go
index cd66662d8..31c311687 100644
--- a/eth/handler.go
+++ b/eth/handler.go
@@ -744,10 +744,10 @@ func (self *ProtocolManager) txBroadcastLoop() {
}
}
-// EthNodeInfo represents a short summary of the Ethereum sub-protocol metadata known
-// about the host peer.
-type EthNodeInfo struct {
- Network uint64 `json:"network"` // Ethereum network ID (1=Frontier, 2=Morden, Ropsten=3)
+// NodeInfo represents a short summary of the Ethereum sub-protocol metadata
+// known about the host peer.
+type NodeInfo struct {
+ Network uint64 `json:"network"` // Ethereum network ID (1=Frontier, 2=Morden, Ropsten=3, Rinkeby=4)
Difficulty *big.Int `json:"difficulty"` // Total difficulty of the host's blockchain
Genesis common.Hash `json:"genesis"` // SHA3 hash of the host's genesis block
Config *params.ChainConfig `json:"config"` // Chain configuration for the fork rules
@@ -755,9 +755,9 @@ type EthNodeInfo struct {
}
// NodeInfo retrieves some protocol metadata about the running host node.
-func (self *ProtocolManager) NodeInfo() *EthNodeInfo {
+func (self *ProtocolManager) NodeInfo() *NodeInfo {
currentBlock := self.blockchain.CurrentBlock()
- return &EthNodeInfo{
+ return &NodeInfo{
Network: self.networkId,
Difficulty: self.blockchain.GetTd(currentBlock.Hash(), currentBlock.NumberU64()),
Genesis: self.blockchain.Genesis().Hash(),
--
cgit v1.2.3
From 9c42a41ed81c0f138236b4ee6490a63092bea3fa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Tue, 2 Jan 2018 12:38:26 +0200
Subject: eth/downloader: avoid hidden reference to finished statesync request
(#15545)
---
eth/downloader/statesync.go | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'eth')
diff --git a/eth/downloader/statesync.go b/eth/downloader/statesync.go
index a0b05c9be..937828b94 100644
--- a/eth/downloader/statesync.go
+++ b/eth/downloader/statesync.go
@@ -132,7 +132,10 @@ func (d *Downloader) runStateSync(s *stateSync) *stateSync {
// Send the next finished request to the current sync:
case deliverReqCh <- deliverReq:
- finished = append(finished[:0], finished[1:]...)
+ // Shift out the first request, but also set the emptied slot to nil for GC
+ copy(finished, finished[1:])
+ finished[len(finished)-1] = nil
+ finished = finished[:len(finished)-1]
// Handle incoming state packs:
case pack := <-d.stateCh:
--
cgit v1.2.3
From c495bca4adef24811e92f9dfa5149b32ac81ef65 Mon Sep 17 00:00:00 2001
From: cdetrio <cdetrio@gmail.com>
Date: Tue, 2 Jan 2018 06:49:17 -0500
Subject: eth: enable preimage recording when tracing (#15787)
---
eth/api_tracer.go | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'eth')
diff --git a/eth/api_tracer.go b/eth/api_tracer.go
index 0d0e2a73c..8ad664e06 100644
--- a/eth/api_tracer.go
+++ b/eth/api_tracer.go
@@ -667,12 +667,15 @@ func (api *PrivateDebugAPI) traceTx(ctx context.Context, message core.Message, v
tracer = vm.NewStructLogger(config.LogConfig)
}
// Run the transaction with tracing enabled.
- vmenv := vm.NewEVM(vmctx, statedb, api.config, vm.Config{Debug: true, Tracer: tracer})
+ vmenv := vm.NewEVM(vmctx, statedb, api.config, vm.Config{Debug: true, Tracer: tracer, EnablePreimageRecording: true})
ret, gas, failed, err := core.ApplyMessage(vmenv, message, new(core.GasPool).AddGas(message.Gas()))
if err != nil {
return nil, fmt.Errorf("tracing failed: %v", err)
}
+ if err := core.WritePreimages(api.eth.ChainDb(), vmctx.BlockNumber.Uint64(), statedb.Preimages()); err != nil {
+ return nil, fmt.Errorf("Error writing preimage from trace: %v", err)
+ }
// Depending on the tracer type, format and return the output
switch tracer := tracer.(type) {
case *vm.StructLogger:
--
cgit v1.2.3
From 85a1eda59e44a32b6c8267889efedca33d3e703b Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@users.noreply.github.com>
Date: Wed, 3 Jan 2018 09:53:09 +0100
Subject: eth: uncaptialize tracer preimage error message (#15792)
* eth: uncaptialize tracer preimage error message
* eth: improve very important error message
---
eth/api_tracer.go | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'eth')
diff --git a/eth/api_tracer.go b/eth/api_tracer.go
index 8ad664e06..26e47dcb6 100644
--- a/eth/api_tracer.go
+++ b/eth/api_tracer.go
@@ -674,7 +674,7 @@ func (api *PrivateDebugAPI) traceTx(ctx context.Context, message core.Message, v
return nil, fmt.Errorf("tracing failed: %v", err)
}
if err := core.WritePreimages(api.eth.ChainDb(), vmctx.BlockNumber.Uint64(), statedb.Preimages()); err != nil {
- return nil, fmt.Errorf("Error writing preimage from trace: %v", err)
+ return nil, fmt.Errorf("can't write preimage: %v", err)
}
// Depending on the tracer type, format and return the output
switch tracer := tracer.(type) {
--
cgit v1.2.3
From 9d48dbf5c2d0401042134d94997be1850bf8499b Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@users.noreply.github.com>
Date: Wed, 3 Jan 2018 11:58:25 +0100
Subject: eth: revert tracer preimage recording (#15800)
This reverts commits 85a1eda59e (#15792) and c495bca4ad (#15787)
because they introduce database writes during tracing.
---
eth/api_tracer.go | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
(limited to 'eth')
diff --git a/eth/api_tracer.go b/eth/api_tracer.go
index 26e47dcb6..0d0e2a73c 100644
--- a/eth/api_tracer.go
+++ b/eth/api_tracer.go
@@ -667,15 +667,12 @@ func (api *PrivateDebugAPI) traceTx(ctx context.Context, message core.Message, v
tracer = vm.NewStructLogger(config.LogConfig)
}
// Run the transaction with tracing enabled.
- vmenv := vm.NewEVM(vmctx, statedb, api.config, vm.Config{Debug: true, Tracer: tracer, EnablePreimageRecording: true})
+ vmenv := vm.NewEVM(vmctx, statedb, api.config, vm.Config{Debug: true, Tracer: tracer})
ret, gas, failed, err := core.ApplyMessage(vmenv, message, new(core.GasPool).AddGas(message.Gas()))
if err != nil {
return nil, fmt.Errorf("tracing failed: %v", err)
}
- if err := core.WritePreimages(api.eth.ChainDb(), vmctx.BlockNumber.Uint64(), statedb.Preimages()); err != nil {
- return nil, fmt.Errorf("can't write preimage: %v", err)
- }
// Depending on the tracer type, format and return the output
switch tracer := tracer.(type) {
case *vm.StructLogger:
--
cgit v1.2.3
From b8caba97099ee5eed33c3b80dd4ea540722e7d8f Mon Sep 17 00:00:00 2001
From: Furkan KAMACI <furkankamaci@gmail.com>
Date: Wed, 3 Jan 2018 15:14:47 +0300
Subject: various: remove redundant parentheses (#15793)
---
eth/handler.go | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'eth')
diff --git a/eth/handler.go b/eth/handler.go
index 31c311687..074cffd96 100644
--- a/eth/handler.go
+++ b/eth/handler.go
@@ -394,14 +394,14 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
case query.Reverse:
// Number based traversal towards the genesis block
if query.Origin.Number >= query.Skip+1 {
- query.Origin.Number -= (query.Skip + 1)
+ query.Origin.Number -= query.Skip + 1
} else {
unknown = true
}
case !query.Reverse:
// Number based traversal towards the leaf block
- query.Origin.Number += (query.Skip + 1)
+ query.Origin.Number += query.Skip + 1
}
}
return p.SendBlockHeaders(headers)
--
cgit v1.2.3
From 6f69cdd109b1dd692b8dfb15e7c53d2051fbc946 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Mon, 13 Nov 2017 13:47:27 +0200
Subject: all: switch gas limits from big.Int to uint64
---
eth/bind.go | 10 ++++------
eth/downloader/downloader_test.go | 2 +-
eth/fetcher/fetcher_test.go | 2 +-
eth/filters/filter_system_test.go | 10 +++++-----
eth/filters/filter_test.go | 10 +++++-----
eth/handler_test.go | 14 ++++++--------
eth/helper_test.go | 2 +-
eth/tracers/tracers_test.go | 4 ++--
8 files changed, 25 insertions(+), 29 deletions(-)
(limited to 'eth')
diff --git a/eth/bind.go b/eth/bind.go
index d09977dbc..769a6c741 100644
--- a/eth/bind.go
+++ b/eth/bind.go
@@ -83,9 +83,7 @@ func toCallArgs(msg ethereum.CallMsg) ethapi.CallArgs {
To: msg.To,
From: msg.From,
Data: msg.Data,
- }
- if msg.Gas != nil {
- args.Gas = hexutil.Big(*msg.Gas)
+ Gas: hexutil.Uint64(msg.Gas),
}
if msg.GasPrice != nil {
args.GasPrice = hexutil.Big(*msg.GasPrice)
@@ -124,9 +122,9 @@ func (b *ContractBackend) SuggestGasPrice(ctx context.Context) (*big.Int, error)
// the backend blockchain. There is no guarantee that this is the true gas limit
// requirement as other transactions may be added or removed by miners, but it
// should provide a basis for setting a reasonable default.
-func (b *ContractBackend) EstimateGas(ctx context.Context, msg ethereum.CallMsg) (*big.Int, error) {
- out, err := b.bcapi.EstimateGas(ctx, toCallArgs(msg))
- return out.ToInt(), err
+func (b *ContractBackend) EstimateGas(ctx context.Context, msg ethereum.CallMsg) (uint64, error) {
+ gas, err := b.bcapi.EstimateGas(ctx, toCallArgs(msg))
+ return uint64(gas), err
}
// SendTransaction implements bind.ContractTransactor injects the transaction
diff --git a/eth/downloader/downloader_test.go b/eth/downloader/downloader_test.go
index e14264944..ad5a62c48 100644
--- a/eth/downloader/downloader_test.go
+++ b/eth/downloader/downloader_test.go
@@ -118,7 +118,7 @@ func (dl *downloadTester) makeChain(n int, seed byte, parent *types.Block, paren
// If the block number is multiple of 3, send a bonus transaction to the miner
if parent == dl.genesis && i%3 == 0 {
signer := types.MakeSigner(params.TestChainConfig, block.Number())
- tx, err := types.SignTx(types.NewTransaction(block.TxNonce(testAddress), common.Address{seed}, big.NewInt(1000), new(big.Int).SetUint64(params.TxGas), nil, nil), signer, testKey)
+ tx, err := types.SignTx(types.NewTransaction(block.TxNonce(testAddress), common.Address{seed}, big.NewInt(1000), params.TxGas, nil, nil), signer, testKey)
if err != nil {
panic(err)
}
diff --git a/eth/fetcher/fetcher_test.go b/eth/fetcher/fetcher_test.go
index e6a639417..9d53b98b6 100644
--- a/eth/fetcher/fetcher_test.go
+++ b/eth/fetcher/fetcher_test.go
@@ -52,7 +52,7 @@ func makeChain(n int, seed byte, parent *types.Block) ([]common.Hash, map[common
// If the block number is multiple of 3, send a bonus transaction to the miner
if parent == genesis && i%3 == 0 {
signer := types.MakeSigner(params.TestChainConfig, block.Number())
- tx, err := types.SignTx(types.NewTransaction(block.TxNonce(testAddress), common.Address{seed}, big.NewInt(1000), new(big.Int).SetUint64(params.TxGas), nil, nil), signer, testKey)
+ tx, err := types.SignTx(types.NewTransaction(block.TxNonce(testAddress), common.Address{seed}, big.NewInt(1000), params.TxGas, nil, nil), signer, testKey)
if err != nil {
panic(err)
}
diff --git a/eth/filters/filter_system_test.go b/eth/filters/filter_system_test.go
index a5025db3d..dd6d4433d 100644
--- a/eth/filters/filter_system_test.go
+++ b/eth/filters/filter_system_test.go
@@ -195,11 +195,11 @@ func TestPendingTxFilter(t *testing.T) {
api = NewPublicFilterAPI(backend, false)
transactions = []*types.Transaction{
- types.NewTransaction(0, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), new(big.Int), new(big.Int), nil),
- types.NewTransaction(1, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), new(big.Int), new(big.Int), nil),
- types.NewTransaction(2, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), new(big.Int), new(big.Int), nil),
- types.NewTransaction(3, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), new(big.Int), new(big.Int), nil),
- types.NewTransaction(4, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), new(big.Int), new(big.Int), nil),
+ types.NewTransaction(0, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), 0, new(big.Int), nil),
+ types.NewTransaction(1, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), 0, new(big.Int), nil),
+ types.NewTransaction(2, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), 0, new(big.Int), nil),
+ types.NewTransaction(3, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), 0, new(big.Int), nil),
+ types.NewTransaction(4, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), 0, new(big.Int), nil),
}
hashes []common.Hash
diff --git a/eth/filters/filter_test.go b/eth/filters/filter_test.go
index 729d0afc8..0018142c4 100644
--- a/eth/filters/filter_test.go
+++ b/eth/filters/filter_test.go
@@ -34,7 +34,7 @@ import (
)
func makeReceipt(addr common.Address) *types.Receipt {
- receipt := types.NewReceipt(nil, false, new(big.Int))
+ receipt := types.NewReceipt(nil, false, 0)
receipt.Logs = []*types.Log{
{Address: addr},
}
@@ -136,7 +136,7 @@ func TestFilters(t *testing.T) {
chain, receipts := core.GenerateChain(params.TestChainConfig, genesis, ethash.NewFaker(), db, 1000, func(i int, gen *core.BlockGen) {
switch i {
case 1:
- receipt := types.NewReceipt(nil, false, new(big.Int))
+ receipt := types.NewReceipt(nil, false, 0)
receipt.Logs = []*types.Log{
{
Address: addr,
@@ -145,7 +145,7 @@ func TestFilters(t *testing.T) {
}
gen.AddUncheckedReceipt(receipt)
case 2:
- receipt := types.NewReceipt(nil, false, new(big.Int))
+ receipt := types.NewReceipt(nil, false, 0)
receipt.Logs = []*types.Log{
{
Address: addr,
@@ -154,7 +154,7 @@ func TestFilters(t *testing.T) {
}
gen.AddUncheckedReceipt(receipt)
case 998:
- receipt := types.NewReceipt(nil, false, new(big.Int))
+ receipt := types.NewReceipt(nil, false, 0)
receipt.Logs = []*types.Log{
{
Address: addr,
@@ -163,7 +163,7 @@ func TestFilters(t *testing.T) {
}
gen.AddUncheckedReceipt(receipt)
case 999:
- receipt := types.NewReceipt(nil, false, new(big.Int))
+ receipt := types.NewReceipt(nil, false, 0)
receipt.Logs = []*types.Log{
{
Address: addr,
diff --git a/eth/handler_test.go b/eth/handler_test.go
index ebbd83c3a..9a02eddfb 100644
--- a/eth/handler_test.go
+++ b/eth/handler_test.go
@@ -37,8 +37,6 @@ import (
"github.com/ethereum/go-ethereum/params"
)
-var bigTxGas = new(big.Int).SetUint64(params.TxGas)
-
// Tests that protocol versions and modes of operations are matched up properly.
func TestProtocolCompatibility(t *testing.T) {
// Define the compatibility chart
@@ -315,13 +313,13 @@ func testGetNodeData(t *testing.T, protocol int) {
switch i {
case 0:
// In block 1, the test bank sends account #1 some ether.
- tx, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBank), acc1Addr, big.NewInt(10000), bigTxGas, nil, nil), signer, testBankKey)
+ tx, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBank), acc1Addr, big.NewInt(10000), params.TxGas, nil, nil), signer, testBankKey)
block.AddTx(tx)
case 1:
// In block 2, the test bank sends some more ether to account #1.
// acc1Addr passes it on to account #2.
- tx1, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBank), acc1Addr, big.NewInt(1000), bigTxGas, nil, nil), signer, testBankKey)
- tx2, _ := types.SignTx(types.NewTransaction(block.TxNonce(acc1Addr), acc2Addr, big.NewInt(1000), bigTxGas, nil, nil), signer, acc1Key)
+ tx1, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBank), acc1Addr, big.NewInt(1000), params.TxGas, nil, nil), signer, testBankKey)
+ tx2, _ := types.SignTx(types.NewTransaction(block.TxNonce(acc1Addr), acc2Addr, big.NewInt(1000), params.TxGas, nil, nil), signer, acc1Key)
block.AddTx(tx1)
block.AddTx(tx2)
case 2:
@@ -407,13 +405,13 @@ func testGetReceipt(t *testing.T, protocol int) {
switch i {
case 0:
// In block 1, the test bank sends account #1 some ether.
- tx, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBank), acc1Addr, big.NewInt(10000), bigTxGas, nil, nil), signer, testBankKey)
+ tx, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBank), acc1Addr, big.NewInt(10000), params.TxGas, nil, nil), signer, testBankKey)
block.AddTx(tx)
case 1:
// In block 2, the test bank sends some more ether to account #1.
// acc1Addr passes it on to account #2.
- tx1, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBank), acc1Addr, big.NewInt(1000), bigTxGas, nil, nil), signer, testBankKey)
- tx2, _ := types.SignTx(types.NewTransaction(block.TxNonce(acc1Addr), acc2Addr, big.NewInt(1000), bigTxGas, nil, nil), signer, acc1Key)
+ tx1, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBank), acc1Addr, big.NewInt(1000), params.TxGas, nil, nil), signer, testBankKey)
+ tx2, _ := types.SignTx(types.NewTransaction(block.TxNonce(acc1Addr), acc2Addr, big.NewInt(1000), params.TxGas, nil, nil), signer, acc1Key)
block.AddTx(tx1)
block.AddTx(tx2)
case 2:
diff --git a/eth/helper_test.go b/eth/helper_test.go
index bfb003c8b..d44574b86 100644
--- a/eth/helper_test.go
+++ b/eth/helper_test.go
@@ -130,7 +130,7 @@ func (p *testTxPool) SubscribeTxPreEvent(ch chan<- core.TxPreEvent) event.Subscr
// newTestTransaction create a new dummy transaction.
func newTestTransaction(from *ecdsa.PrivateKey, nonce uint64, datasize int) *types.Transaction {
- tx := types.NewTransaction(nonce, common.Address{}, big.NewInt(0), big.NewInt(100000), big.NewInt(0), make([]byte, datasize))
+ tx := types.NewTransaction(nonce, common.Address{}, big.NewInt(0), 100000, big.NewInt(0), make([]byte, datasize))
tx, _ = types.SignTx(tx, types.HomesteadSigner{}, from)
return tx
}
diff --git a/eth/tracers/tracers_test.go b/eth/tracers/tracers_test.go
index 139280797..bf8120228 100644
--- a/eth/tracers/tracers_test.go
+++ b/eth/tracers/tracers_test.go
@@ -156,7 +156,7 @@ func TestCallTracer(t *testing.T) {
BlockNumber: new(big.Int).SetUint64(uint64(test.Context.Number)),
Time: new(big.Int).SetUint64(uint64(test.Context.Time)),
Difficulty: (*big.Int)(test.Context.Difficulty),
- GasLimit: new(big.Int).SetUint64(uint64(test.Context.GasLimit)),
+ GasLimit: uint64(test.Context.GasLimit),
GasPrice: tx.GasPrice(),
}
db, _ := ethdb.NewMemDatabase()
@@ -174,7 +174,7 @@ func TestCallTracer(t *testing.T) {
t.Fatalf("failed to prepare transaction for tracing: %v", err)
}
st := core.NewStateTransition(evm, msg, new(core.GasPool).AddGas(tx.Gas()))
- if _, _, _, _, err = st.TransitionDb(); err != nil {
+ if _, _, _, err = st.TransitionDb(); err != nil {
t.Fatalf("failed to execute transaction: %v", err)
}
// Retrieve the trace result and compare against the etalon
--
cgit v1.2.3
From ae71da1b03c6eee82b714ef81b4fc59bcc130bb2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Thu, 4 Jan 2018 13:58:11 +0200
Subject: eth: fix tracer panic when running without configs + reexec (#15799)
---
eth/api_tracer.go | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'eth')
diff --git a/eth/api_tracer.go b/eth/api_tracer.go
index 0d0e2a73c..d49f077ae 100644
--- a/eth/api_tracer.go
+++ b/eth/api_tracer.go
@@ -204,7 +204,7 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
if err != nil {
// If the starting state is missing, allow some number of blocks to be reexecuted
reexec := defaultTraceReexec
- if config.Reexec != nil {
+ if config != nil && config.Reexec != nil {
reexec = *config.Reexec
}
// Find the most recent block that has the state available
@@ -465,7 +465,7 @@ func (api *PrivateDebugAPI) traceBlock(ctx context.Context, block *types.Block,
return nil, fmt.Errorf("parent %x not found", block.ParentHash())
}
reexec := defaultTraceReexec
- if config.Reexec != nil {
+ if config != nil && config.Reexec != nil {
reexec = *config.Reexec
}
statedb, err := api.computeStateDB(parent, reexec)
@@ -619,7 +619,7 @@ func (api *PrivateDebugAPI) TraceTransaction(ctx context.Context, hash common.Ha
return nil, fmt.Errorf("transaction %x not found", hash)
}
reexec := defaultTraceReexec
- if config.Reexec != nil {
+ if config != nil && config.Reexec != nil {
reexec = *config.Reexec
}
msg, vmctx, statedb, err := api.computeTxEnv(blockHash, int(index), reexec)
--
cgit v1.2.3
From 5c2f1e00148f16655d3fb63b93920b1108165c56 Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@users.noreply.github.com>
Date: Mon, 8 Jan 2018 13:15:57 +0100
Subject: all: update generated code (#15808)
* core/types, core/vm, eth, tests: regenerate gencodec files
* Makefile: update devtools target
Install protoc-gen-go and print reminders about npm, solc and protoc.
Also switch to github.com/kevinburke/go-bindata because it's more
maintained.
* contracts/ens: update contracts and regenerate with solidity v0.4.19
The newer upstream version of the FIFSRegistrar contract doesn't set the
resolver anymore. The resolver is now deployed separately.
* contracts/release: regenerate with solidity v0.4.19
* contracts/chequebook: fix fallback and regenerate with solidity v0.4.19
The contract didn't have a fallback function, payments would be rejected
when compiled with newer solidity. References to 'mortal' and 'owned'
use the local file system so we can compile without network access.
* p2p/discv5: regenerate with recent stringer
* cmd/faucet: regenerate
* dashboard: regenerate
* eth/tracers: regenerate
* internal/jsre/deps: regenerate
* dashboard: avoid sed -i because it's not portable
* accounts/usbwallet/internal/trezor: fix go generate warnings
---
eth/gen_config.go | 54 ++++++----------------------------
eth/tracers/internal/tracers/assets.go | 40 ++++++++++++-------------
2 files changed, 29 insertions(+), 65 deletions(-)
(limited to 'eth')
diff --git a/eth/gen_config.go b/eth/gen_config.go
index e2d50e1f6..92cab57e1 100644
--- a/eth/gen_config.go
+++ b/eth/gen_config.go
@@ -13,6 +13,8 @@ import (
"github.com/ethereum/go-ethereum/eth/gasprice"
)
+var _ = (*configMarshaling)(nil)
+
func (c Config) MarshalTOML() (interface{}, error) {
type Config struct {
Genesis *core.Genesis `toml:",omitempty"`
@@ -20,7 +22,6 @@ func (c Config) MarshalTOML() (interface{}, error) {
SyncMode downloader.SyncMode
LightServ int `toml:",omitempty"`
LightPeers int `toml:",omitempty"`
- MaxPeers int `toml:"-"`
SkipBcVersionCheck bool `toml:"-"`
DatabaseHandles int `toml:"-"`
DatabaseCache int
@@ -28,17 +29,11 @@ func (c Config) MarshalTOML() (interface{}, error) {
MinerThreads int `toml:",omitempty"`
ExtraData hexutil.Bytes `toml:",omitempty"`
GasPrice *big.Int
- EthashCacheDir string
- EthashCachesInMem int
- EthashCachesOnDisk int
- EthashDatasetDir string
- EthashDatasetsInMem int
- EthashDatasetsOnDisk int
+ Ethash ethash.Config
TxPool core.TxPoolConfig
GPO gasprice.Config
EnablePreimageRecording bool
- DocRoot string `toml:"-"`
- PowMode ethash.Mode `toml:"-"`
+ DocRoot string `toml:"-"`
}
var enc Config
enc.Genesis = c.Genesis
@@ -53,17 +48,11 @@ func (c Config) MarshalTOML() (interface{}, error) {
enc.MinerThreads = c.MinerThreads
enc.ExtraData = c.ExtraData
enc.GasPrice = c.GasPrice
- enc.EthashCacheDir = c.Ethash.CacheDir
- enc.EthashCachesInMem = c.Ethash.CachesInMem
- enc.EthashCachesOnDisk = c.Ethash.CachesOnDisk
- enc.EthashDatasetDir = c.Ethash.DatasetDir
- enc.EthashDatasetsInMem = c.Ethash.DatasetsInMem
- enc.EthashDatasetsOnDisk = c.Ethash.DatasetsOnDisk
+ enc.Ethash = c.Ethash
enc.TxPool = c.TxPool
enc.GPO = c.GPO
enc.EnablePreimageRecording = c.EnablePreimageRecording
enc.DocRoot = c.DocRoot
- enc.PowMode = c.Ethash.PowMode
return &enc, nil
}
@@ -74,7 +63,6 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
SyncMode *downloader.SyncMode
LightServ *int `toml:",omitempty"`
LightPeers *int `toml:",omitempty"`
- MaxPeers *int `toml:"-"`
SkipBcVersionCheck *bool `toml:"-"`
DatabaseHandles *int `toml:"-"`
DatabaseCache *int
@@ -82,17 +70,11 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
MinerThreads *int `toml:",omitempty"`
ExtraData hexutil.Bytes `toml:",omitempty"`
GasPrice *big.Int
- EthashCacheDir *string
- EthashCachesInMem *int
- EthashCachesOnDisk *int
- EthashDatasetDir *string
- EthashDatasetsInMem *int
- EthashDatasetsOnDisk *int
+ Ethash *ethash.Config
TxPool *core.TxPoolConfig
GPO *gasprice.Config
EnablePreimageRecording *bool
- DocRoot *string `toml:"-"`
- PowMode *ethash.Mode `toml:"-"`
+ DocRoot *string `toml:"-"`
}
var dec Config
if err := unmarshal(&dec); err != nil {
@@ -134,23 +116,8 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
if dec.GasPrice != nil {
c.GasPrice = dec.GasPrice
}
- if dec.EthashCacheDir != nil {
- c.Ethash.CacheDir = *dec.EthashCacheDir
- }
- if dec.EthashCachesInMem != nil {
- c.Ethash.CachesInMem = *dec.EthashCachesInMem
- }
- if dec.EthashCachesOnDisk != nil {
- c.Ethash.CachesOnDisk = *dec.EthashCachesOnDisk
- }
- if dec.EthashDatasetDir != nil {
- c.Ethash.DatasetDir = *dec.EthashDatasetDir
- }
- if dec.EthashDatasetsInMem != nil {
- c.Ethash.DatasetsInMem = *dec.EthashDatasetsInMem
- }
- if dec.EthashDatasetsOnDisk != nil {
- c.Ethash.DatasetsOnDisk = *dec.EthashDatasetsOnDisk
+ if dec.Ethash != nil {
+ c.Ethash = *dec.Ethash
}
if dec.TxPool != nil {
c.TxPool = *dec.TxPool
@@ -164,8 +131,5 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
if dec.DocRoot != nil {
c.DocRoot = *dec.DocRoot
}
- if dec.PowMode != nil {
- c.Ethash.PowMode = *dec.PowMode
- }
return nil
}
diff --git a/eth/tracers/internal/tracers/assets.go b/eth/tracers/internal/tracers/assets.go
index cb0421008..1912f74ed 100644
--- a/eth/tracers/internal/tracers/assets.go
+++ b/eth/tracers/internal/tracers/assets.go
@@ -1,4 +1,4 @@
-// Code generated by go-bindata.
+// Code generated by go-bindata. DO NOT EDIT.
// sources:
// 4byte_tracer.js
// call_tracer.js
@@ -6,7 +6,6 @@
// noop_tracer.js
// opcount_tracer.js
// prestate_tracer.js
-// DO NOT EDIT!
package tracers
@@ -197,8 +196,8 @@ func prestate_tracerJs() (*asset, error) {
// It returns an error if the asset could not be found or
// could not be loaded.
func Asset(name string) ([]byte, error) {
- cannonicalName := strings.Replace(name, "\\", "/", -1)
- if f, ok := _bindata[cannonicalName]; ok {
+ canonicalName := strings.Replace(name, "\\", "/", -1)
+ if f, ok := _bindata[canonicalName]; ok {
a, err := f()
if err != nil {
return nil, fmt.Errorf("Asset %s can't read by error: %v", name, err)
@@ -223,8 +222,8 @@ func MustAsset(name string) []byte {
// It returns an error if the asset could not be found or
// could not be loaded.
func AssetInfo(name string) (os.FileInfo, error) {
- cannonicalName := strings.Replace(name, "\\", "/", -1)
- if f, ok := _bindata[cannonicalName]; ok {
+ canonicalName := strings.Replace(name, "\\", "/", -1)
+ if f, ok := _bindata[canonicalName]; ok {
a, err := f()
if err != nil {
return nil, fmt.Errorf("AssetInfo %s can't read by error: %v", name, err)
@@ -245,11 +244,16 @@ func AssetNames() []string {
// _bindata is a table, holding each asset generator, mapped to its name.
var _bindata = map[string]func() (*asset, error){
- "4byte_tracer.js": _4byte_tracerJs,
- "call_tracer.js": call_tracerJs,
- "evmdis_tracer.js": evmdis_tracerJs,
- "noop_tracer.js": noop_tracerJs,
- "opcount_tracer.js": opcount_tracerJs,
+ "4byte_tracer.js": _4byte_tracerJs,
+
+ "call_tracer.js": call_tracerJs,
+
+ "evmdis_tracer.js": evmdis_tracerJs,
+
+ "noop_tracer.js": noop_tracerJs,
+
+ "opcount_tracer.js": opcount_tracerJs,
+
"prestate_tracer.js": prestate_tracerJs,
}
@@ -269,8 +273,8 @@ var _bindata = map[string]func() (*asset, error){
func AssetDir(name string) ([]string, error) {
node := _bintree
if len(name) != 0 {
- cannonicalName := strings.Replace(name, "\\", "/", -1)
- pathList := strings.Split(cannonicalName, "/")
+ canonicalName := strings.Replace(name, "\\", "/", -1)
+ pathList := strings.Split(canonicalName, "/")
for _, p := range pathList {
node = node.Children[p]
if node == nil {
@@ -320,11 +324,7 @@ func RestoreAsset(dir, name string) error {
if err != nil {
return err
}
- err = os.Chtimes(_filePath(dir, name), info.ModTime(), info.ModTime())
- if err != nil {
- return err
- }
- return nil
+ return os.Chtimes(_filePath(dir, name), info.ModTime(), info.ModTime())
}
// RestoreAssets restores an asset under the given directory recursively
@@ -345,6 +345,6 @@ func RestoreAssets(dir, name string) error {
}
func _filePath(dir, name string) string {
- cannonicalName := strings.Replace(name, "\\", "/", -1)
- return filepath.Join(append([]string{dir}, strings.Split(cannonicalName, "/")...)...)
+ canonicalName := strings.Replace(name, "\\", "/", -1)
+ return filepath.Join(append([]string{dir}, strings.Split(canonicalName, "/")...)...)
}
--
cgit v1.2.3
From 9d06026c1991fdd8f034ce194fa20a0740c21810 Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@users.noreply.github.com>
Date: Mon, 8 Jan 2018 14:13:22 +0100
Subject: all: regenerate codecs with gencodec commit 90983d99de (#15830)
Fixes #15777 because null is now allowed for hexutil.Bytes.
---
eth/gen_config.go | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'eth')
diff --git a/eth/gen_config.go b/eth/gen_config.go
index 92cab57e1..4f2e82d94 100644
--- a/eth/gen_config.go
+++ b/eth/gen_config.go
@@ -68,7 +68,7 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
DatabaseCache *int
Etherbase *common.Address `toml:",omitempty"`
MinerThreads *int `toml:",omitempty"`
- ExtraData hexutil.Bytes `toml:",omitempty"`
+ ExtraData *hexutil.Bytes `toml:",omitempty"`
GasPrice *big.Int
Ethash *ethash.Config
TxPool *core.TxPoolConfig
@@ -111,7 +111,7 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
c.MinerThreads = *dec.MinerThreads
}
if dec.ExtraData != nil {
- c.ExtraData = dec.ExtraData
+ c.ExtraData = *dec.ExtraData
}
if dec.GasPrice != nil {
c.GasPrice = dec.GasPrice
--
cgit v1.2.3
From b06e20bc7c498adef658b58f10f5c729b46d84f9 Mon Sep 17 00:00:00 2001
From: Nick Johnson <arachnid@notdot.net>
Date: Wed, 10 Jan 2018 12:57:36 +0000
Subject: eth/gasprice: set default percentile to 60%, count blocks instead of
transactions (#15828)
The first should address a long term issue where we recommend a gas
price that is greater than that required for 50% of transactions in
recent blocks, which can lead to gas price inflation as people take
this figure and add a margin to it, resulting in a positive feedback
loop.
---
eth/config.go | 4 ++--
eth/gasprice/gasprice.go | 49 +++++++++++++++++++++++++++++++-----------------
2 files changed, 34 insertions(+), 19 deletions(-)
(limited to 'eth')
diff --git a/eth/config.go b/eth/config.go
index 383cd6783..4399560fa 100644
--- a/eth/config.go
+++ b/eth/config.go
@@ -49,8 +49,8 @@ var DefaultConfig = Config{
TxPool: core.DefaultTxPoolConfig,
GPO: gasprice.Config{
- Blocks: 10,
- Percentile: 50,
+ Blocks: 20,
+ Percentile: 60,
},
}
diff --git a/eth/gasprice/gasprice.go b/eth/gasprice/gasprice.go
index c662348e1..54325692c 100644
--- a/eth/gasprice/gasprice.go
+++ b/eth/gasprice/gasprice.go
@@ -23,6 +23,7 @@ import (
"sync"
"github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/internal/ethapi"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
@@ -101,9 +102,9 @@ func (gpo *Oracle) SuggestPrice(ctx context.Context) (*big.Int, error) {
ch := make(chan getBlockPricesResult, gpo.checkBlocks)
sent := 0
exp := 0
- var txPrices []*big.Int
+ var blockPrices []*big.Int
for sent < gpo.checkBlocks && blockNum > 0 {
- go gpo.getBlockPrices(ctx, blockNum, ch)
+ go gpo.getBlockPrices(ctx, types.MakeSigner(gpo.backend.ChainConfig(), big.NewInt(int64(blockNum))), blockNum, ch)
sent++
exp++
blockNum--
@@ -115,8 +116,8 @@ func (gpo *Oracle) SuggestPrice(ctx context.Context) (*big.Int, error) {
return lastPrice, res.err
}
exp--
- if len(res.prices) > 0 {
- txPrices = append(txPrices, res.prices...)
+ if res.price != nil {
+ blockPrices = append(blockPrices, res.price)
continue
}
if maxEmpty > 0 {
@@ -124,16 +125,16 @@ func (gpo *Oracle) SuggestPrice(ctx context.Context) (*big.Int, error) {
continue
}
if blockNum > 0 && sent < gpo.maxBlocks {
- go gpo.getBlockPrices(ctx, blockNum, ch)
+ go gpo.getBlockPrices(ctx, types.MakeSigner(gpo.backend.ChainConfig(), big.NewInt(int64(blockNum))), blockNum, ch)
sent++
exp++
blockNum--
}
}
price := lastPrice
- if len(txPrices) > 0 {
- sort.Sort(bigIntArray(txPrices))
- price = txPrices[(len(txPrices)-1)*gpo.percentile/100]
+ if len(blockPrices) > 0 {
+ sort.Sort(bigIntArray(blockPrices))
+ price = blockPrices[(len(blockPrices)-1)*gpo.percentile/100]
}
if price.Cmp(maxPrice) > 0 {
price = new(big.Int).Set(maxPrice)
@@ -147,24 +148,38 @@ func (gpo *Oracle) SuggestPrice(ctx context.Context) (*big.Int, error) {
}
type getBlockPricesResult struct {
- prices []*big.Int
- err error
+ price *big.Int
+ err error
}
-// getLowestPrice calculates the lowest transaction gas price in a given block
+type transactionsByGasPrice []*types.Transaction
+
+func (t transactionsByGasPrice) Len() int { return len(t) }
+func (t transactionsByGasPrice) Swap(i, j int) { t[i], t[j] = t[j], t[i] }
+func (t transactionsByGasPrice) Less(i, j int) bool { return t[i].GasPrice().Cmp(t[j].GasPrice()) < 0 }
+
+// getBlockPrices calculates the lowest transaction gas price in a given block
// and sends it to the result channel. If the block is empty, price is nil.
-func (gpo *Oracle) getBlockPrices(ctx context.Context, blockNum uint64, ch chan getBlockPricesResult) {
+func (gpo *Oracle) getBlockPrices(ctx context.Context, signer types.Signer, blockNum uint64, ch chan getBlockPricesResult) {
block, err := gpo.backend.BlockByNumber(ctx, rpc.BlockNumber(blockNum))
if block == nil {
ch <- getBlockPricesResult{nil, err}
return
}
- txs := block.Transactions()
- prices := make([]*big.Int, len(txs))
- for i, tx := range txs {
- prices[i] = tx.GasPrice()
+
+ blockTxs := block.Transactions()
+ txs := make([]*types.Transaction, len(blockTxs))
+ copy(txs, blockTxs)
+ sort.Sort(transactionsByGasPrice(txs))
+
+ for _, tx := range txs {
+ sender, err := types.Sender(signer, tx)
+ if err == nil && sender != block.Coinbase() {
+ ch <- getBlockPricesResult{tx.GasPrice(), nil}
+ return
+ }
}
- ch <- getBlockPricesResult{prices, nil}
+ ch <- getBlockPricesResult{nil, nil}
}
type bigIntArray []*big.Int
--
cgit v1.2.3
From 1bf508b449ebd42653f521ada92c782e8cb664d2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Fri, 5 Jan 2018 12:39:24 +0200
Subject: accounts/abi/bind: support event filtering in abigen
---
eth/bind.go | 136 --------------------------------------
eth/filters/api.go | 7 +-
eth/filters/filter_system.go | 11 +--
eth/filters/filter_system_test.go | 19 +++---
4 files changed, 21 insertions(+), 152 deletions(-)
delete mode 100644 eth/bind.go
(limited to 'eth')
diff --git a/eth/bind.go b/eth/bind.go
deleted file mode 100644
index 769a6c741..000000000
--- a/eth/bind.go
+++ /dev/null
@@ -1,136 +0,0 @@
-// Copyright 2015 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 eth
-
-import (
- "context"
- "math/big"
-
- "github.com/ethereum/go-ethereum"
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/common/hexutil"
- "github.com/ethereum/go-ethereum/core/types"
- "github.com/ethereum/go-ethereum/internal/ethapi"
- "github.com/ethereum/go-ethereum/rlp"
- "github.com/ethereum/go-ethereum/rpc"
-)
-
-// ContractBackend implements bind.ContractBackend with direct calls to Ethereum
-// internals to support operating on contracts within subprotocols like eth and
-// swarm.
-//
-// Internally this backend uses the already exposed API endpoints of the Ethereum
-// object. These should be rewritten to internal Go method calls when the Go API
-// is refactored to support a clean library use.
-type ContractBackend struct {
- eapi *ethapi.PublicEthereumAPI // Wrapper around the Ethereum object to access metadata
- bcapi *ethapi.PublicBlockChainAPI // Wrapper around the blockchain to access chain data
- txapi *ethapi.PublicTransactionPoolAPI // Wrapper around the transaction pool to access transaction data
-}
-
-// NewContractBackend creates a new native contract backend using an existing
-// Ethereum object.
-func NewContractBackend(apiBackend ethapi.Backend) *ContractBackend {
- return &ContractBackend{
- eapi: ethapi.NewPublicEthereumAPI(apiBackend),
- bcapi: ethapi.NewPublicBlockChainAPI(apiBackend),
- txapi: ethapi.NewPublicTransactionPoolAPI(apiBackend, new(ethapi.AddrLocker)),
- }
-}
-
-// CodeAt retrieves any code associated with the contract from the local API.
-func (b *ContractBackend) CodeAt(ctx context.Context, contract common.Address, blockNum *big.Int) ([]byte, error) {
- return b.bcapi.GetCode(ctx, contract, toBlockNumber(blockNum))
-}
-
-// CodeAt retrieves any code associated with the contract from the local API.
-func (b *ContractBackend) PendingCodeAt(ctx context.Context, contract common.Address) ([]byte, error) {
- return b.bcapi.GetCode(ctx, contract, rpc.PendingBlockNumber)
-}
-
-// ContractCall implements bind.ContractCaller executing an Ethereum contract
-// call with the specified data as the input. The pending flag requests execution
-// against the pending block, not the stable head of the chain.
-func (b *ContractBackend) CallContract(ctx context.Context, msg ethereum.CallMsg, blockNum *big.Int) ([]byte, error) {
- out, err := b.bcapi.Call(ctx, toCallArgs(msg), toBlockNumber(blockNum))
- return out, err
-}
-
-// ContractCall implements bind.ContractCaller executing an Ethereum contract
-// call with the specified data as the input. The pending flag requests execution
-// against the pending block, not the stable head of the chain.
-func (b *ContractBackend) PendingCallContract(ctx context.Context, msg ethereum.CallMsg) ([]byte, error) {
- out, err := b.bcapi.Call(ctx, toCallArgs(msg), rpc.PendingBlockNumber)
- return out, err
-}
-
-func toCallArgs(msg ethereum.CallMsg) ethapi.CallArgs {
- args := ethapi.CallArgs{
- To: msg.To,
- From: msg.From,
- Data: msg.Data,
- Gas: hexutil.Uint64(msg.Gas),
- }
- if msg.GasPrice != nil {
- args.GasPrice = hexutil.Big(*msg.GasPrice)
- }
- if msg.Value != nil {
- args.Value = hexutil.Big(*msg.Value)
- }
- return args
-}
-
-func toBlockNumber(num *big.Int) rpc.BlockNumber {
- if num == nil {
- return rpc.LatestBlockNumber
- }
- return rpc.BlockNumber(num.Int64())
-}
-
-// PendingAccountNonce implements bind.ContractTransactor retrieving the current
-// pending nonce associated with an account.
-func (b *ContractBackend) PendingNonceAt(ctx context.Context, account common.Address) (nonce uint64, err error) {
- out, err := b.txapi.GetTransactionCount(ctx, account, rpc.PendingBlockNumber)
- if out != nil {
- nonce = uint64(*out)
- }
- return nonce, err
-}
-
-// SuggestGasPrice implements bind.ContractTransactor retrieving the currently
-// suggested gas price to allow a timely execution of a transaction.
-func (b *ContractBackend) SuggestGasPrice(ctx context.Context) (*big.Int, error) {
- return b.eapi.GasPrice(ctx)
-}
-
-// EstimateGasLimit implements bind.ContractTransactor triing to estimate the gas
-// needed to execute a specific transaction based on the current pending state of
-// the backend blockchain. There is no guarantee that this is the true gas limit
-// requirement as other transactions may be added or removed by miners, but it
-// should provide a basis for setting a reasonable default.
-func (b *ContractBackend) EstimateGas(ctx context.Context, msg ethereum.CallMsg) (uint64, error) {
- gas, err := b.bcapi.EstimateGas(ctx, toCallArgs(msg))
- return uint64(gas), err
-}
-
-// SendTransaction implements bind.ContractTransactor injects the transaction
-// into the pending pool for execution.
-func (b *ContractBackend) SendTransaction(ctx context.Context, tx *types.Transaction) error {
- raw, _ := rlp.EncodeToBytes(tx)
- _, err := b.txapi.SendRawTransaction(ctx, raw)
- return err
-}
diff --git a/eth/filters/api.go b/eth/filters/api.go
index 03c1d6afc..406c9442e 100644
--- a/eth/filters/api.go
+++ b/eth/filters/api.go
@@ -25,6 +25,7 @@ import (
"sync"
"time"
+ ethereum "github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core/types"
@@ -240,7 +241,7 @@ func (api *PublicFilterAPI) Logs(ctx context.Context, crit FilterCriteria) (*rpc
matchedLogs = make(chan []*types.Log)
)
- logsSub, err := api.events.SubscribeLogs(crit, matchedLogs)
+ logsSub, err := api.events.SubscribeLogs(ethereum.FilterQuery(crit), matchedLogs)
if err != nil {
return nil, err
}
@@ -267,6 +268,8 @@ func (api *PublicFilterAPI) Logs(ctx context.Context, crit FilterCriteria) (*rpc
}
// FilterCriteria represents a request to create a new filter.
+//
+// TODO(karalabe): Kill this in favor of ethereum.FilterQuery.
type FilterCriteria struct {
FromBlock *big.Int
ToBlock *big.Int
@@ -289,7 +292,7 @@ type FilterCriteria struct {
// https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_newfilter
func (api *PublicFilterAPI) NewFilter(crit FilterCriteria) (rpc.ID, error) {
logs := make(chan []*types.Log)
- logsSub, err := api.events.SubscribeLogs(crit, logs)
+ logsSub, err := api.events.SubscribeLogs(ethereum.FilterQuery(crit), logs)
if err != nil {
return rpc.ID(""), err
}
diff --git a/eth/filters/filter_system.go b/eth/filters/filter_system.go
index e08cedb27..b09998f9c 100644
--- a/eth/filters/filter_system.go
+++ b/eth/filters/filter_system.go
@@ -25,6 +25,7 @@ import (
"sync"
"time"
+ ethereum "github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
@@ -75,7 +76,7 @@ type subscription struct {
id rpc.ID
typ Type
created time.Time
- logsCrit FilterCriteria
+ logsCrit ethereum.FilterQuery
logs chan []*types.Log
hashes chan common.Hash
headers chan *types.Header
@@ -162,7 +163,7 @@ func (es *EventSystem) subscribe(sub *subscription) *Subscription {
// SubscribeLogs creates a subscription that will write all logs matching the
// given criteria to the given logs channel. Default value for the from and to
// block is "latest". If the fromBlock > toBlock an error is returned.
-func (es *EventSystem) SubscribeLogs(crit FilterCriteria, logs chan []*types.Log) (*Subscription, error) {
+func (es *EventSystem) SubscribeLogs(crit ethereum.FilterQuery, logs chan []*types.Log) (*Subscription, error) {
var from, to rpc.BlockNumber
if crit.FromBlock == nil {
from = rpc.LatestBlockNumber
@@ -200,7 +201,7 @@ func (es *EventSystem) SubscribeLogs(crit FilterCriteria, logs chan []*types.Log
// subscribeMinedPendingLogs creates a subscription that returned mined and
// pending logs that match the given criteria.
-func (es *EventSystem) subscribeMinedPendingLogs(crit FilterCriteria, logs chan []*types.Log) *Subscription {
+func (es *EventSystem) subscribeMinedPendingLogs(crit ethereum.FilterQuery, logs chan []*types.Log) *Subscription {
sub := &subscription{
id: rpc.NewID(),
typ: MinedAndPendingLogsSubscription,
@@ -217,7 +218,7 @@ func (es *EventSystem) subscribeMinedPendingLogs(crit FilterCriteria, logs chan
// subscribeLogs creates a subscription that will write all logs matching the
// given criteria to the given logs channel.
-func (es *EventSystem) subscribeLogs(crit FilterCriteria, logs chan []*types.Log) *Subscription {
+func (es *EventSystem) subscribeLogs(crit ethereum.FilterQuery, logs chan []*types.Log) *Subscription {
sub := &subscription{
id: rpc.NewID(),
typ: LogsSubscription,
@@ -234,7 +235,7 @@ func (es *EventSystem) subscribeLogs(crit FilterCriteria, logs chan []*types.Log
// subscribePendingLogs creates a subscription that writes transaction hashes for
// transactions that enter the transaction pool.
-func (es *EventSystem) subscribePendingLogs(crit FilterCriteria, logs chan []*types.Log) *Subscription {
+func (es *EventSystem) subscribePendingLogs(crit ethereum.FilterQuery, logs chan []*types.Log) *Subscription {
sub := &subscription{
id: rpc.NewID(),
typ: PendingLogsSubscription,
diff --git a/eth/filters/filter_system_test.go b/eth/filters/filter_system_test.go
index dd6d4433d..7ec3b4be7 100644
--- a/eth/filters/filter_system_test.go
+++ b/eth/filters/filter_system_test.go
@@ -25,6 +25,7 @@ import (
"testing"
"time"
+ ethereum "github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
@@ -488,27 +489,27 @@ func TestPendingLogsSubscription(t *testing.T) {
}
testCases = []struct {
- crit FilterCriteria
+ crit ethereum.FilterQuery
expected []*types.Log
c chan []*types.Log
sub *Subscription
}{
// match all
- {FilterCriteria{}, convertLogs(allLogs), nil, nil},
+ {ethereum.FilterQuery{}, convertLogs(allLogs), nil, nil},
// match none due to no matching addresses
- {FilterCriteria{Addresses: []common.Address{{}, notUsedAddress}, Topics: [][]common.Hash{nil}}, []*types.Log{}, nil, nil},
+ {ethereum.FilterQuery{Addresses: []common.Address{{}, notUsedAddress}, Topics: [][]common.Hash{nil}}, []*types.Log{}, nil, nil},
// match logs based on addresses, ignore topics
- {FilterCriteria{Addresses: []common.Address{firstAddr}}, append(convertLogs(allLogs[:2]), allLogs[5].Logs[3]), nil, nil},
+ {ethereum.FilterQuery{Addresses: []common.Address{firstAddr}}, append(convertLogs(allLogs[:2]), allLogs[5].Logs[3]), nil, nil},
// match none due to no matching topics (match with address)
- {FilterCriteria{Addresses: []common.Address{secondAddr}, Topics: [][]common.Hash{{notUsedTopic}}}, []*types.Log{}, nil, nil},
+ {ethereum.FilterQuery{Addresses: []common.Address{secondAddr}, Topics: [][]common.Hash{{notUsedTopic}}}, []*types.Log{}, nil, nil},
// match logs based on addresses and topics
- {FilterCriteria{Addresses: []common.Address{thirdAddress}, Topics: [][]common.Hash{{firstTopic, secondTopic}}}, append(convertLogs(allLogs[3:5]), allLogs[5].Logs[0]), nil, nil},
+ {ethereum.FilterQuery{Addresses: []common.Address{thirdAddress}, Topics: [][]common.Hash{{firstTopic, secondTopic}}}, append(convertLogs(allLogs[3:5]), allLogs[5].Logs[0]), nil, nil},
// match logs based on multiple addresses and "or" topics
- {FilterCriteria{Addresses: []common.Address{secondAddr, thirdAddress}, Topics: [][]common.Hash{{firstTopic, secondTopic}}}, append(convertLogs(allLogs[2:5]), allLogs[5].Logs[0]), nil, nil},
+ {ethereum.FilterQuery{Addresses: []common.Address{secondAddr, thirdAddress}, Topics: [][]common.Hash{{firstTopic, secondTopic}}}, append(convertLogs(allLogs[2:5]), allLogs[5].Logs[0]), nil, nil},
// block numbers are ignored for filters created with New***Filter, these return all logs that match the given criteria when the state changes
- {FilterCriteria{Addresses: []common.Address{firstAddr}, FromBlock: big.NewInt(2), ToBlock: big.NewInt(3)}, append(convertLogs(allLogs[:2]), allLogs[5].Logs[3]), nil, nil},
+ {ethereum.FilterQuery{Addresses: []common.Address{firstAddr}, FromBlock: big.NewInt(2), ToBlock: big.NewInt(3)}, append(convertLogs(allLogs[:2]), allLogs[5].Logs[3]), nil, nil},
// multiple pending logs, should match only 2 topics from the logs in block 5
- {FilterCriteria{Addresses: []common.Address{thirdAddress}, Topics: [][]common.Hash{{firstTopic, fourthTopic}}}, []*types.Log{allLogs[5].Logs[0], allLogs[5].Logs[2]}, nil, nil},
+ {ethereum.FilterQuery{Addresses: []common.Address{thirdAddress}, Topics: [][]common.Hash{{firstTopic, fourthTopic}}}, []*types.Log{allLogs[5].Logs[0], allLogs[5].Logs[2]}, nil, nil},
}
)
--
cgit v1.2.3
From 566d5c0777c2c5ee1a8fe3c0aee1e5c8c69053e2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Tue, 30 Jan 2018 18:39:32 +0200
Subject: core, eth, les, light: get rid of redundant methods
---
eth/downloader/downloader.go | 10 ++++++----
eth/downloader/downloader_test.go | 4 ++--
eth/handler.go | 10 ++++++++--
eth/helper_test.go | 8 ++++++--
eth/protocol_test.go | 14 +++++++++-----
5 files changed, 31 insertions(+), 15 deletions(-)
(limited to 'eth')
diff --git a/eth/downloader/downloader.go b/eth/downloader/downloader.go
index b338129e0..6ce58257b 100644
--- a/eth/downloader/downloader.go
+++ b/eth/downloader/downloader.go
@@ -164,8 +164,8 @@ type LightChain interface {
// CurrentHeader retrieves the head header from the local chain.
CurrentHeader() *types.Header
- // GetTdByHash returns the total difficulty of a local block.
- GetTdByHash(common.Hash) *big.Int
+ // GetTd returns the total difficulty of a local block.
+ GetTd(common.Hash, uint64) *big.Int
// InsertHeaderChain inserts a batch of headers into the local chain.
InsertHeaderChain([]*types.Header, int) (int, error)
@@ -1218,7 +1218,8 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error {
// L: Request new headers up from 11 (R's TD was higher, it must have something)
// R: Nothing to give
if d.mode != LightSync {
- if !gotHeaders && td.Cmp(d.blockchain.GetTdByHash(d.blockchain.CurrentBlock().Hash())) > 0 {
+ head := d.blockchain.CurrentBlock()
+ if !gotHeaders && td.Cmp(d.blockchain.GetTd(head.Hash(), head.NumberU64())) > 0 {
return errStallingPeer
}
}
@@ -1230,7 +1231,8 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error {
// queued for processing when the header download completes. However, as long as the
// peer gave us something useful, we're already happy/progressed (above check).
if d.mode == FastSync || d.mode == LightSync {
- if td.Cmp(d.lightchain.GetTdByHash(d.lightchain.CurrentHeader().Hash())) > 0 {
+ head := d.lightchain.CurrentHeader()
+ if td.Cmp(d.lightchain.GetTd(head.Hash(), head.Number.Uint64())) > 0 {
return errStallingPeer
}
}
diff --git a/eth/downloader/downloader_test.go b/eth/downloader/downloader_test.go
index ad5a62c48..e9c7b6170 100644
--- a/eth/downloader/downloader_test.go
+++ b/eth/downloader/downloader_test.go
@@ -299,8 +299,8 @@ func (dl *downloadTester) FastSyncCommitHead(hash common.Hash) error {
return fmt.Errorf("non existent block: %x", hash[:4])
}
-// GetTdByHash retrieves the block's total difficulty from the canonical chain.
-func (dl *downloadTester) GetTdByHash(hash common.Hash) *big.Int {
+// GetTd retrieves the block's total difficulty from the canonical chain.
+func (dl *downloadTester) GetTd(hash common.Hash, number uint64) *big.Int {
dl.lock.RLock()
defer dl.lock.RUnlock()
diff --git a/eth/handler.go b/eth/handler.go
index 074cffd96..fcd53c5a6 100644
--- a/eth/handler.go
+++ b/eth/handler.go
@@ -257,8 +257,14 @@ func (pm *ProtocolManager) handle(p *peer) error {
p.Log().Debug("Ethereum peer connected", "name", p.Name())
// Execute the Ethereum handshake
- td, head, genesis := pm.blockchain.Status()
- if err := p.Handshake(pm.networkId, td, head, genesis); err != nil {
+ var (
+ genesis = pm.blockchain.Genesis()
+ head = pm.blockchain.CurrentHeader()
+ hash = head.Hash()
+ number = head.Number.Uint64()
+ td = pm.blockchain.GetTd(hash, number)
+ )
+ if err := p.Handshake(pm.networkId, td, hash, genesis.Hash()); err != nil {
p.Log().Debug("Ethereum handshake failed", "err", err)
return err
}
diff --git a/eth/helper_test.go b/eth/helper_test.go
index d44574b86..9a4dc9010 100644
--- a/eth/helper_test.go
+++ b/eth/helper_test.go
@@ -166,8 +166,12 @@ func newTestPeer(name string, version int, pm *ProtocolManager, shake bool) (*te
tp := &testPeer{app: app, net: net, peer: peer}
// Execute any implicitly requested handshakes and return
if shake {
- td, head, genesis := pm.blockchain.Status()
- tp.handshake(nil, td, head, genesis)
+ var (
+ genesis = pm.blockchain.Genesis()
+ head = pm.blockchain.CurrentHeader()
+ td = pm.blockchain.GetTd(head.Hash(), head.Number.Uint64())
+ )
+ tp.handshake(nil, td, head.Hash(), genesis.Hash())
}
return tp, errc
}
diff --git a/eth/protocol_test.go b/eth/protocol_test.go
index d3a44ae91..7cbcba571 100644
--- a/eth/protocol_test.go
+++ b/eth/protocol_test.go
@@ -42,7 +42,11 @@ func TestStatusMsgErrors63(t *testing.T) { testStatusMsgErrors(t, 63) }
func testStatusMsgErrors(t *testing.T, protocol int) {
pm := newTestProtocolManagerMust(t, downloader.FullSync, 0, nil, nil)
- td, currentBlock, genesis := pm.blockchain.Status()
+ var (
+ genesis = pm.blockchain.Genesis()
+ head = pm.blockchain.CurrentHeader()
+ td = pm.blockchain.GetTd(head.Hash(), head.Number.Uint64())
+ )
defer pm.Stop()
tests := []struct {
@@ -55,16 +59,16 @@ func testStatusMsgErrors(t *testing.T, protocol int) {
wantError: errResp(ErrNoStatusMsg, "first msg has code 2 (!= 0)"),
},
{
- code: StatusMsg, data: statusData{10, DefaultConfig.NetworkId, td, currentBlock, genesis},
+ code: StatusMsg, data: statusData{10, DefaultConfig.NetworkId, td, head.Hash(), genesis.Hash()},
wantError: errResp(ErrProtocolVersionMismatch, "10 (!= %d)", protocol),
},
{
- code: StatusMsg, data: statusData{uint32(protocol), 999, td, currentBlock, genesis},
+ code: StatusMsg, data: statusData{uint32(protocol), 999, td, head.Hash(), genesis.Hash()},
wantError: errResp(ErrNetworkIdMismatch, "999 (!= 1)"),
},
{
- code: StatusMsg, data: statusData{uint32(protocol), DefaultConfig.NetworkId, td, currentBlock, common.Hash{3}},
- wantError: errResp(ErrGenesisBlockMismatch, "0300000000000000 (!= %x)", genesis[:8]),
+ code: StatusMsg, data: statusData{uint32(protocol), DefaultConfig.NetworkId, td, head.Hash(), common.Hash{3}},
+ wantError: errResp(ErrGenesisBlockMismatch, "0300000000000000 (!= %x)", genesis.Hash().Bytes()[:8]),
},
}
--
cgit v1.2.3
From bc0666fb277be5e7d1fd7c5523a3b335b310a154 Mon Sep 17 00:00:00 2001
From: Martin Holst Swende <martin@swende.se>
Date: Mon, 5 Feb 2018 14:38:06 +0100
Subject: eth/downloader: fix #15858 by checking if downloader dropPeer
function is set (#15992)
---
eth/downloader/downloader.go | 23 ++++++++++++++++++++---
1 file changed, 20 insertions(+), 3 deletions(-)
(limited to 'eth')
diff --git a/eth/downloader/downloader.go b/eth/downloader/downloader.go
index 6ce58257b..746c6a402 100644
--- a/eth/downloader/downloader.go
+++ b/eth/downloader/downloader.go
@@ -324,8 +324,13 @@ func (d *Downloader) Synchronise(id string, head common.Hash, td *big.Int, mode
errEmptyHeaderSet, errPeersUnavailable, errTooOld,
errInvalidAncestor, errInvalidChain:
log.Warn("Synchronisation failed, dropping peer", "peer", id, "err", err)
- d.dropPeer(id)
-
+ if d.dropPeer == nil {
+ // The dropPeer method is nil when `--copydb` is used for a local copy.
+ // Timeouts can occur if e.g. compaction hits at the wrong time, and can be ignored
+ log.Warn("Downloader wants to drop peer, but peerdrop-function is not set", "peer", id)
+ } else {
+ d.dropPeer(id)
+ }
default:
log.Warn("Synchronisation failed, retrying", "err", err)
}
@@ -853,6 +858,12 @@ func (d *Downloader) fetchHeaders(p *peerConnection, from uint64) error {
getHeaders(from)
case <-timeout.C:
+ if d.dropPeer == nil {
+ // The dropPeer method is nil when `--copydb` is used for a local copy.
+ // Timeouts can occur if e.g. compaction hits at the wrong time, and can be ignored
+ p.log.Warn("Downloader wants to drop peer, but peerdrop-function is not set", "peer", p.id)
+ break
+ }
// Header retrieval timed out, consider the peer bad and drop
p.log.Debug("Header request timed out", "elapsed", ttl)
headerTimeoutMeter.Mark(1)
@@ -1071,7 +1082,13 @@ func (d *Downloader) fetchParts(errCancel error, deliveryCh chan dataPack, deliv
setIdle(peer, 0)
} else {
peer.log.Debug("Stalling delivery, dropping", "type", kind)
- d.dropPeer(pid)
+ if d.dropPeer == nil {
+ // The dropPeer method is nil when `--copydb` is used for a local copy.
+ // Timeouts can occur if e.g. compaction hits at the wrong time, and can be ignored
+ peer.log.Warn("Downloader wants to drop peer, but peerdrop-function is not set", "peer", pid)
+ } else {
+ d.dropPeer(pid)
+ }
}
}
}
--
cgit v1.2.3
From c3f238dd5371961d309350fb0f9d5136c9fc6afa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Felf=C3=B6ldi=20Zsolt?= <zsfelfoldi@gmail.com>
Date: Mon, 5 Feb 2018 14:41:53 +0100
Subject: les: limit LES peer count and improve peer configuration logic
(#16010)
* les: limit number of LES connections
* eth, cmd/utils: light vs max peer configuration logic
---
eth/backend.go | 6 +++---
eth/config.go | 2 +-
2 files changed, 4 insertions(+), 4 deletions(-)
(limited to 'eth')
diff --git a/eth/backend.go b/eth/backend.go
index c39974a2c..bcd724c0c 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -393,10 +393,10 @@ func (s *Ethereum) Start(srvr *p2p.Server) error {
// Figure out a max peers count based on the server limits
maxPeers := srvr.MaxPeers
if s.config.LightServ > 0 {
- maxPeers -= s.config.LightPeers
- if maxPeers < srvr.MaxPeers/2 {
- maxPeers = srvr.MaxPeers / 2
+ if s.config.LightPeers >= srvr.MaxPeers {
+ return fmt.Errorf("invalid peer config: light peer count (%d) >= total peer count (%d)", s.config.LightPeers, srvr.MaxPeers)
}
+ maxPeers -= s.config.LightPeers
}
// Start the networking layer and the light server if requested
s.protocolManager.Start(maxPeers)
diff --git a/eth/config.go b/eth/config.go
index 4399560fa..2158c71ba 100644
--- a/eth/config.go
+++ b/eth/config.go
@@ -43,7 +43,7 @@ var DefaultConfig = Config{
DatasetsOnDisk: 2,
},
NetworkId: 1,
- LightPeers: 20,
+ LightPeers: 100,
DatabaseCache: 128,
GasPrice: big.NewInt(18 * params.Shannon),
--
cgit v1.2.3
From 55599ee95d4151a2502465e0afc7c47bd1acba77 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Mon, 5 Feb 2018 18:40:32 +0200
Subject: core, trie: intermediate mempool between trie and database (#15857)
This commit reduces database I/O by not writing every state trie to disk.
---
eth/api.go | 4 +-
eth/api_tracer.go | 135 ++++------------
eth/backend.go | 8 +-
eth/config.go | 8 +-
eth/downloader/downloader.go | 317 ++++++++++++++++++++------------------
eth/downloader/downloader_test.go | 192 ++++++-----------------
eth/downloader/queue.go | 169 ++++++++++----------
eth/downloader/statesync.go | 31 ++--
eth/handler.go | 6 +-
eth/handler_test.go | 16 +-
eth/helper_test.go | 14 +-
eth/protocol_test.go | 6 +-
eth/sync_test.go | 4 +-
13 files changed, 377 insertions(+), 533 deletions(-)
(limited to 'eth')
diff --git a/eth/api.go b/eth/api.go
index 0db3eb554..a345b57e4 100644
--- a/eth/api.go
+++ b/eth/api.go
@@ -462,11 +462,11 @@ func (api *PrivateDebugAPI) getModifiedAccounts(startBlock, endBlock *types.Bloc
return nil, fmt.Errorf("start block height (%d) must be less than end block height (%d)", startBlock.Number().Uint64(), endBlock.Number().Uint64())
}
- oldTrie, err := trie.NewSecure(startBlock.Root(), api.eth.chainDb, 0)
+ oldTrie, err := trie.NewSecure(startBlock.Root(), trie.NewDatabase(api.eth.chainDb), 0)
if err != nil {
return nil, err
}
- newTrie, err := trie.NewSecure(endBlock.Root(), api.eth.chainDb, 0)
+ newTrie, err := trie.NewSecure(endBlock.Root(), trie.NewDatabase(api.eth.chainDb), 0)
if err != nil {
return nil, err
}
diff --git a/eth/api_tracer.go b/eth/api_tracer.go
index d49f077ae..07c4457bc 100644
--- a/eth/api_tracer.go
+++ b/eth/api_tracer.go
@@ -24,7 +24,6 @@ import (
"io/ioutil"
"runtime"
"sync"
- "sync/atomic"
"time"
"github.com/ethereum/go-ethereum/common"
@@ -34,7 +33,6 @@ import (
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/eth/tracers"
- "github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/internal/ethapi"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/rlp"
@@ -72,6 +70,7 @@ type txTraceResult struct {
type blockTraceTask struct {
statedb *state.StateDB // Intermediate state prepped for tracing
block *types.Block // Block to trace the transactions from
+ rootref common.Hash // Trie root reference held for this task
results []*txTraceResult // Trace results procudes by the task
}
@@ -90,59 +89,6 @@ type txTraceTask struct {
index int // Transaction offset in the block
}
-// ephemeralDatabase is a memory wrapper around a proper database, which acts as
-// an ephemeral write layer. This construct is used by the chain tracer to write
-// state tries for intermediate blocks without serializing to disk, but at the
-// same time to allow disk fallback for reads that do no hit the memory layer.
-type ephemeralDatabase struct {
- diskdb ethdb.Database // Persistent disk database to fall back to with reads
- memdb *ethdb.MemDatabase // Ephemeral memory database for primary reads and writes
-}
-
-func (db *ephemeralDatabase) Put(key []byte, value []byte) error { return db.memdb.Put(key, value) }
-func (db *ephemeralDatabase) Delete(key []byte) error { return errors.New("delete not supported") }
-func (db *ephemeralDatabase) Close() { db.memdb.Close() }
-func (db *ephemeralDatabase) NewBatch() ethdb.Batch {
- return db.memdb.NewBatch()
-}
-func (db *ephemeralDatabase) Has(key []byte) (bool, error) {
- if has, _ := db.memdb.Has(key); has {
- return has, nil
- }
- return db.diskdb.Has(key)
-}
-func (db *ephemeralDatabase) Get(key []byte) ([]byte, error) {
- if blob, _ := db.memdb.Get(key); blob != nil {
- return blob, nil
- }
- return db.diskdb.Get(key)
-}
-
-// Prune does a state sync into a new memory write layer and replaces the old one.
-// This allows us to discard entries that are no longer referenced from the current
-// state.
-func (db *ephemeralDatabase) Prune(root common.Hash) {
- // Pull the still relevant state data into memory
- sync := state.NewStateSync(root, db.diskdb)
- for sync.Pending() > 0 {
- hash := sync.Missing(1)[0]
-
- // Move the next trie node from the memory layer into a sync struct
- node, err := db.memdb.Get(hash[:])
- if err != nil {
- panic(err) // memdb must have the data
- }
- if _, _, err := sync.Process([]trie.SyncResult{{Hash: hash, Data: node}}); err != nil {
- panic(err) // it's not possible to fail processing a node
- }
- }
- // Discard the old memory layer and write a new one
- db.memdb, _ = ethdb.NewMemDatabaseWithCap(db.memdb.Len())
- if _, err := sync.Commit(db); err != nil {
- panic(err) // writing into a memdb cannot fail
- }
-}
-
// TraceChain returns the structured logs created during the execution of EVM
// between two blocks (excluding start) and returns them as a JSON object.
func (api *PrivateDebugAPI) TraceChain(ctx context.Context, start, end rpc.BlockNumber, config *TraceConfig) (*rpc.Subscription, error) {
@@ -188,19 +134,15 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
// Ensure we have a valid starting state before doing any work
origin := start.NumberU64()
+ database := state.NewDatabase(api.eth.ChainDb())
- memdb, _ := ethdb.NewMemDatabase()
- db := &ephemeralDatabase{
- diskdb: api.eth.ChainDb(),
- memdb: memdb,
- }
if number := start.NumberU64(); number > 0 {
start = api.eth.blockchain.GetBlock(start.ParentHash(), start.NumberU64()-1)
if start == nil {
return nil, fmt.Errorf("parent block #%d not found", number-1)
}
}
- statedb, err := state.New(start.Root(), state.NewDatabase(db))
+ statedb, err := state.New(start.Root(), database)
if err != nil {
// If the starting state is missing, allow some number of blocks to be reexecuted
reexec := defaultTraceReexec
@@ -213,7 +155,7 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
if start == nil {
break
}
- if statedb, err = state.New(start.Root(), state.NewDatabase(db)); err == nil {
+ if statedb, err = state.New(start.Root(), database); err == nil {
break
}
}
@@ -256,7 +198,7 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
res, err := api.traceTx(ctx, msg, vmctx, task.statedb, config)
if err != nil {
task.results[i] = &txTraceResult{Error: err.Error()}
- log.Warn("Tracing failed", "err", err)
+ log.Warn("Tracing failed", "hash", tx.Hash(), "block", task.block.NumberU64(), "err", err)
break
}
task.statedb.DeleteSuicides()
@@ -273,7 +215,6 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
}
// Start a goroutine to feed all the blocks into the tracers
begin := time.Now()
- complete := start.NumberU64()
go func() {
var (
@@ -281,6 +222,7 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
number uint64
traced uint64
failed error
+ proot common.Hash
)
// Ensure everything is properly cleaned up on any exit path
defer func() {
@@ -308,7 +250,7 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
// Print progress logs if long enough time elapsed
if time.Since(logged) > 8*time.Second {
if number > origin {
- log.Info("Tracing chain segment", "start", origin, "end", end.NumberU64(), "current", number, "transactions", traced, "elapsed", time.Since(begin))
+ log.Info("Tracing chain segment", "start", origin, "end", end.NumberU64(), "current", number, "transactions", traced, "elapsed", time.Since(begin), "memory", database.TrieDB().Size())
} else {
log.Info("Preparing state for chain trace", "block", number, "start", origin, "elapsed", time.Since(begin))
}
@@ -325,13 +267,11 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
txs := block.Transactions()
select {
- case tasks <- &blockTraceTask{statedb: statedb.Copy(), block: block, results: make([]*txTraceResult, len(txs))}:
+ case tasks <- &blockTraceTask{statedb: statedb.Copy(), block: block, rootref: proot, results: make([]*txTraceResult, len(txs))}:
case <-notifier.Closed():
return
}
traced += uint64(len(txs))
- } else {
- atomic.StoreUint64(&complete, number)
}
// Generate the next state snapshot fast without tracing
_, _, _, err := api.eth.blockchain.Processor().Process(block, statedb, vm.Config{})
@@ -340,7 +280,7 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
break
}
// Finalize the state so any modifications are written to the trie
- root, err := statedb.CommitTo(db, true)
+ root, err := statedb.Commit(true)
if err != nil {
failed = err
break
@@ -349,26 +289,14 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
failed = err
break
}
- // After every N blocks, prune the database to only retain relevant data
- if (number-start.NumberU64())%4096 == 0 {
- // Wait until currently pending trace jobs finish
- for atomic.LoadUint64(&complete) != number {
- select {
- case <-time.After(100 * time.Millisecond):
- case <-notifier.Closed():
- return
- }
- }
- // No more concurrent access at this point, prune the database
- var (
- nodes = db.memdb.Len()
- start = time.Now()
- )
- db.Prune(root)
- log.Info("Pruned tracer state entries", "deleted", nodes-db.memdb.Len(), "left", db.memdb.Len(), "elapsed", time.Since(start))
-
- statedb, _ = state.New(root, state.NewDatabase(db))
+ // Reference the trie twice, once for us, once for the trancer
+ database.TrieDB().Reference(root, common.Hash{})
+ if number >= origin {
+ database.TrieDB().Reference(root, common.Hash{})
}
+ // Dereference all past tries we ourselves are done working with
+ database.TrieDB().Dereference(proot, common.Hash{})
+ proot = root
}
}()
@@ -387,12 +315,14 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
}
done[uint64(result.Block)] = result
+ // Dereference any paret tries held in memory by this task
+ database.TrieDB().Dereference(res.rootref, common.Hash{})
+
// 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() {
notifier.Notify(sub.ID, result)
}
- atomic.StoreUint64(&complete, next)
delete(done, next)
next++
}
@@ -544,18 +474,14 @@ func (api *PrivateDebugAPI) computeStateDB(block *types.Block, reexec uint64) (*
}
// Otherwise try to reexec blocks until we find a state or reach our limit
origin := block.NumberU64()
+ database := state.NewDatabase(api.eth.ChainDb())
- memdb, _ := ethdb.NewMemDatabase()
- db := &ephemeralDatabase{
- diskdb: api.eth.ChainDb(),
- memdb: memdb,
- }
for i := uint64(0); i < reexec; i++ {
block = api.eth.blockchain.GetBlock(block.ParentHash(), block.NumberU64()-1)
if block == nil {
break
}
- if statedb, err = state.New(block.Root(), state.NewDatabase(db)); err == nil {
+ if statedb, err = state.New(block.Root(), database); err == nil {
break
}
}
@@ -571,6 +497,7 @@ func (api *PrivateDebugAPI) computeStateDB(block *types.Block, reexec uint64) (*
var (
start = time.Now()
logged time.Time
+ proot common.Hash
)
for block.NumberU64() < origin {
// Print progress logs if long enough time elapsed
@@ -587,26 +514,18 @@ func (api *PrivateDebugAPI) computeStateDB(block *types.Block, reexec uint64) (*
return nil, err
}
// Finalize the state so any modifications are written to the trie
- root, err := statedb.CommitTo(db, true)
+ root, err := statedb.Commit(true)
if err != nil {
return nil, err
}
if err := statedb.Reset(root); err != nil {
return nil, err
}
- // After every N blocks, prune the database to only retain relevant data
- if block.NumberU64()%4096 == 0 || block.NumberU64() == origin {
- var (
- nodes = db.memdb.Len()
- begin = time.Now()
- )
- db.Prune(root)
- log.Info("Pruned tracer state entries", "deleted", nodes-db.memdb.Len(), "left", db.memdb.Len(), "elapsed", time.Since(begin))
-
- statedb, _ = state.New(root, state.NewDatabase(db))
- }
+ database.TrieDB().Reference(root, common.Hash{})
+ database.TrieDB().Dereference(proot, common.Hash{})
+ proot = root
}
- log.Info("Historical state regenerated", "block", block.NumberU64(), "elapsed", time.Since(start))
+ log.Info("Historical state regenerated", "block", block.NumberU64(), "elapsed", time.Since(start), "size", database.TrieDB().Size())
return statedb, nil
}
diff --git a/eth/backend.go b/eth/backend.go
index bcd724c0c..94aad2310 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -144,9 +144,11 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
}
core.WriteBlockChainVersion(chainDb, core.BlockChainVersion)
}
-
- vmConfig := vm.Config{EnablePreimageRecording: config.EnablePreimageRecording}
- eth.blockchain, err = core.NewBlockChain(chainDb, eth.chainConfig, eth.engine, vmConfig)
+ var (
+ vmConfig = vm.Config{EnablePreimageRecording: config.EnablePreimageRecording}
+ cacheConfig = &core.CacheConfig{Disabled: config.NoPruning, TrieNodeLimit: config.TrieCache, TrieTimeLimit: config.TrieTimeout}
+ )
+ eth.blockchain, err = core.NewBlockChain(chainDb, cacheConfig, eth.chainConfig, eth.engine, vmConfig)
if err != nil {
return nil, err
}
diff --git a/eth/config.go b/eth/config.go
index 2158c71ba..dd7f42c7d 100644
--- a/eth/config.go
+++ b/eth/config.go
@@ -22,6 +22,7 @@ import (
"os/user"
"path/filepath"
"runtime"
+ "time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
@@ -44,7 +45,9 @@ var DefaultConfig = Config{
},
NetworkId: 1,
LightPeers: 100,
- DatabaseCache: 128,
+ DatabaseCache: 768,
+ TrieCache: 256,
+ TrieTimeout: 5 * time.Minute,
GasPrice: big.NewInt(18 * params.Shannon),
TxPool: core.DefaultTxPoolConfig,
@@ -78,6 +81,7 @@ type Config struct {
// Protocol options
NetworkId uint64 // Network ID to use for selecting peers to connect to
SyncMode downloader.SyncMode
+ NoPruning bool
// Light client options
LightServ int `toml:",omitempty"` // Maximum percentage of time allowed for serving LES requests
@@ -87,6 +91,8 @@ type Config struct {
SkipBcVersionCheck bool `toml:"-"`
DatabaseHandles int `toml:"-"`
DatabaseCache int
+ TrieCache int
+ TrieTimeout time.Duration
// Mining-related options
Etherbase common.Address `toml:",omitempty"`
diff --git a/eth/downloader/downloader.go b/eth/downloader/downloader.go
index 746c6a402..7f490d9e9 100644
--- a/eth/downloader/downloader.go
+++ b/eth/downloader/downloader.go
@@ -18,10 +18,8 @@
package downloader
import (
- "crypto/rand"
"errors"
"fmt"
- "math"
"math/big"
"sync"
"sync/atomic"
@@ -61,12 +59,11 @@ var (
maxHeadersProcess = 2048 // Number of header download results to import at once into the chain
maxResultsProcess = 2048 // Number of content download results to import at once into the chain
- fsHeaderCheckFrequency = 100 // Verification frequency of the downloaded headers during fast sync
- fsHeaderSafetyNet = 2048 // Number of headers to discard in case a chain violation is detected
- fsHeaderForceVerify = 24 // Number of headers to verify before and after the pivot to accept it
- fsPivotInterval = 256 // Number of headers out of which to randomize the pivot point
- fsMinFullBlocks = 64 // Number of blocks to retrieve fully even in fast sync
- fsCriticalTrials = uint32(32) // Number of times to retry in the cricical section before bailing
+ fsHeaderCheckFrequency = 100 // Verification frequency of the downloaded headers during fast sync
+ fsHeaderSafetyNet = 2048 // Number of headers to discard in case a chain violation is detected
+ fsHeaderForceVerify = 24 // Number of headers to verify before and after the pivot to accept it
+ fsHeaderContCheck = 3 * time.Second // Time interval to check for header continuations during state download
+ fsMinFullBlocks = 64 // Number of blocks to retrieve fully even in fast sync
)
var (
@@ -102,9 +99,6 @@ type Downloader struct {
peers *peerSet // Set of active peers from which download can proceed
stateDB ethdb.Database
- fsPivotLock *types.Header // Pivot header on critical section entry (cannot change between retries)
- fsPivotFails uint32 // Number of subsequent fast sync failures in the critical section
-
rttEstimate uint64 // Round trip time to target for download requests
rttConfidence uint64 // Confidence in the estimated RTT (unit: millionths to allow atomic ops)
@@ -124,6 +118,7 @@ type Downloader struct {
synchroniseMock func(id string, hash common.Hash) error // Replacement for synchronise during testing
synchronising int32
notified int32
+ committed int32
// Channels
headerCh chan dataPack // [eth/62] Channel receiving inbound block headers
@@ -156,7 +151,7 @@ type Downloader struct {
// LightChain encapsulates functions required to synchronise a light chain.
type LightChain interface {
// HasHeader verifies a header's presence in the local chain.
- HasHeader(h common.Hash, number uint64) bool
+ HasHeader(common.Hash, uint64) bool
// GetHeaderByHash retrieves a header from the local chain.
GetHeaderByHash(common.Hash) *types.Header
@@ -179,7 +174,7 @@ type BlockChain interface {
LightChain
// HasBlockAndState verifies block and associated states' presence in the local chain.
- HasBlockAndState(common.Hash) bool
+ HasBlockAndState(common.Hash, uint64) bool
// GetBlockByHash retrieves a block from the local chain.
GetBlockByHash(common.Hash) *types.Block
@@ -391,9 +386,7 @@ func (d *Downloader) synchronise(id string, hash common.Hash, td *big.Int, mode
// Set the requested sync mode, unless it's forbidden
d.mode = mode
- if d.mode == FastSync && atomic.LoadUint32(&d.fsPivotFails) >= fsCriticalTrials {
- d.mode = FullSync
- }
+
// Retrieve the origin peer and initiate the downloading process
p := d.peers.Peer(id)
if p == nil {
@@ -441,57 +434,40 @@ func (d *Downloader) syncWithPeer(p *peerConnection, hash common.Hash, td *big.I
d.syncStatsChainHeight = height
d.syncStatsLock.Unlock()
- // Initiate the sync using a concurrent header and content retrieval algorithm
+ // Ensure our origin point is below any fast sync pivot point
pivot := uint64(0)
- switch d.mode {
- case LightSync:
- pivot = height
- case FastSync:
- // Calculate the new fast/slow sync pivot point
- if d.fsPivotLock == nil {
- pivotOffset, err := rand.Int(rand.Reader, big.NewInt(int64(fsPivotInterval)))
- if err != nil {
- panic(fmt.Sprintf("Failed to access crypto random source: %v", err))
- }
- if height > uint64(fsMinFullBlocks)+pivotOffset.Uint64() {
- pivot = height - uint64(fsMinFullBlocks) - pivotOffset.Uint64()
- }
+ if d.mode == FastSync {
+ if height <= uint64(fsMinFullBlocks) {
+ origin = 0
} else {
- // Pivot point locked in, use this and do not pick a new one!
- pivot = d.fsPivotLock.Number.Uint64()
- }
- // If the point is below the origin, move origin back to ensure state download
- if pivot < origin {
- if pivot > 0 {
+ pivot = height - uint64(fsMinFullBlocks)
+ if pivot <= origin {
origin = pivot - 1
- } else {
- origin = 0
}
}
- log.Debug("Fast syncing until pivot block", "pivot", pivot)
}
- d.queue.Prepare(origin+1, d.mode, pivot, latest)
+ d.committed = 1
+ if d.mode == FastSync && pivot != 0 {
+ d.committed = 0
+ }
+ // Initiate the sync using a concurrent header and content retrieval algorithm
+ d.queue.Prepare(origin+1, d.mode)
if d.syncInitHook != nil {
d.syncInitHook(origin, height)
}
fetchers := []func() error{
- func() error { return d.fetchHeaders(p, origin+1) }, // Headers are always retrieved
- func() error { return d.fetchBodies(origin + 1) }, // Bodies are retrieved during normal and fast sync
- func() error { return d.fetchReceipts(origin + 1) }, // Receipts are retrieved during fast sync
- func() error { return d.processHeaders(origin+1, td) },
+ func() error { return d.fetchHeaders(p, origin+1, pivot) }, // Headers are always retrieved
+ func() error { return d.fetchBodies(origin + 1) }, // Bodies are retrieved during normal and fast sync
+ func() error { return d.fetchReceipts(origin + 1) }, // Receipts are retrieved during fast sync
+ func() error { return d.processHeaders(origin+1, pivot, td) },
}
if d.mode == FastSync {
fetchers = append(fetchers, func() error { return d.processFastSyncContent(latest) })
} else if d.mode == FullSync {
fetchers = append(fetchers, d.processFullSyncContent)
}
- err = d.spawnSync(fetchers)
- if err != nil && d.mode == FastSync && d.fsPivotLock != nil {
- // If sync failed in the critical section, bump the fail counter.
- atomic.AddUint32(&d.fsPivotFails, 1)
- }
- return err
+ return d.spawnSync(fetchers)
}
// spawnSync runs d.process and all given fetcher functions to completion in
@@ -671,7 +647,7 @@ func (d *Downloader) findAncestor(p *peerConnection, height uint64) (uint64, err
continue
}
// Otherwise check if we already know the header or not
- if (d.mode == FullSync && d.blockchain.HasBlockAndState(headers[i].Hash())) || (d.mode != FullSync && d.lightchain.HasHeader(headers[i].Hash(), headers[i].Number.Uint64())) {
+ if (d.mode == FullSync && d.blockchain.HasBlockAndState(headers[i].Hash(), headers[i].Number.Uint64())) || (d.mode != FullSync && d.lightchain.HasHeader(headers[i].Hash(), headers[i].Number.Uint64())) {
number, hash = headers[i].Number.Uint64(), headers[i].Hash()
// If every header is known, even future ones, the peer straight out lied about its head
@@ -736,7 +712,7 @@ func (d *Downloader) findAncestor(p *peerConnection, height uint64) (uint64, err
arrived = true
// Modify the search interval based on the response
- if (d.mode == FullSync && !d.blockchain.HasBlockAndState(headers[0].Hash())) || (d.mode != FullSync && !d.lightchain.HasHeader(headers[0].Hash(), headers[0].Number.Uint64())) {
+ if (d.mode == FullSync && !d.blockchain.HasBlockAndState(headers[0].Hash(), headers[0].Number.Uint64())) || (d.mode != FullSync && !d.lightchain.HasHeader(headers[0].Hash(), headers[0].Number.Uint64())) {
end = check
break
}
@@ -774,7 +750,7 @@ func (d *Downloader) findAncestor(p *peerConnection, height uint64) (uint64, err
// other peers are only accepted if they map cleanly to the skeleton. If no one
// can fill in the skeleton - not even the origin peer - it's assumed invalid and
// the origin is dropped.
-func (d *Downloader) fetchHeaders(p *peerConnection, from uint64) error {
+func (d *Downloader) fetchHeaders(p *peerConnection, from uint64, pivot uint64) error {
p.log.Debug("Directing header downloads", "origin", from)
defer p.log.Debug("Header download terminated")
@@ -825,6 +801,18 @@ func (d *Downloader) fetchHeaders(p *peerConnection, from uint64) error {
}
// If no more headers are inbound, notify the content fetchers and return
if packet.Items() == 0 {
+ // Don't abort header fetches while the pivot is downloading
+ if atomic.LoadInt32(&d.committed) == 0 && pivot <= from {
+ p.log.Debug("No headers, waiting for pivot commit")
+ select {
+ case <-time.After(fsHeaderContCheck):
+ getHeaders(from)
+ continue
+ case <-d.cancelCh:
+ return errCancelHeaderFetch
+ }
+ }
+ // Pivot done (or not in fast sync) and no more headers, terminate the process
p.log.Debug("No more headers available")
select {
case d.headerProcCh <- nil:
@@ -1129,10 +1117,8 @@ func (d *Downloader) fetchParts(errCancel error, deliveryCh chan dataPack, deliv
}
if request.From > 0 {
peer.log.Trace("Requesting new batch of data", "type", kind, "from", request.From)
- } else if len(request.Headers) > 0 {
- peer.log.Trace("Requesting new batch of data", "type", kind, "count", len(request.Headers), "from", request.Headers[0].Number)
} else {
- peer.log.Trace("Requesting new batch of data", "type", kind, "count", len(request.Hashes))
+ peer.log.Trace("Requesting new batch of data", "type", kind, "count", len(request.Headers), "from", request.Headers[0].Number)
}
// Fetch the chunk and make sure any errors return the hashes to the queue
if fetchHook != nil {
@@ -1160,10 +1146,7 @@ func (d *Downloader) fetchParts(errCancel error, deliveryCh chan dataPack, deliv
// processHeaders takes batches of retrieved headers from an input channel and
// keeps processing and scheduling them into the header chain and downloader's
// queue until the stream ends or a failure occurs.
-func (d *Downloader) processHeaders(origin uint64, td *big.Int) error {
- // Calculate the pivoting point for switching from fast to slow sync
- pivot := d.queue.FastSyncPivot()
-
+func (d *Downloader) processHeaders(origin uint64, pivot uint64, td *big.Int) error {
// Keep a count of uncertain headers to roll back
rollback := []*types.Header{}
defer func() {
@@ -1188,19 +1171,6 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error {
"header", fmt.Sprintf("%d->%d", lastHeader, d.lightchain.CurrentHeader().Number),
"fast", fmt.Sprintf("%d->%d", lastFastBlock, curFastBlock),
"block", fmt.Sprintf("%d->%d", lastBlock, curBlock))
-
- // If we're already past the pivot point, this could be an attack, thread carefully
- if rollback[len(rollback)-1].Number.Uint64() > pivot {
- // If we didn't ever fail, lock in the pivot header (must! not! change!)
- if atomic.LoadUint32(&d.fsPivotFails) == 0 {
- for _, header := range rollback {
- if header.Number.Uint64() == pivot {
- log.Warn("Fast-sync pivot locked in", "number", pivot, "hash", header.Hash())
- d.fsPivotLock = header
- }
- }
- }
- }
}
}()
@@ -1302,13 +1272,6 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error {
rollback = append(rollback[:0], rollback[len(rollback)-fsHeaderSafetyNet:]...)
}
}
- // If we're fast syncing and just pulled in the pivot, make sure it's the one locked in
- if d.mode == FastSync && d.fsPivotLock != nil && chunk[0].Number.Uint64() <= pivot && chunk[len(chunk)-1].Number.Uint64() >= pivot {
- if pivot := chunk[int(pivot-chunk[0].Number.Uint64())]; pivot.Hash() != d.fsPivotLock.Hash() {
- log.Warn("Pivot doesn't match locked in one", "remoteNumber", pivot.Number, "remoteHash", pivot.Hash(), "localNumber", d.fsPivotLock.Number, "localHash", d.fsPivotLock.Hash())
- return errInvalidChain
- }
- }
// Unless we're doing light chains, schedule the headers for associated content retrieval
if d.mode == FullSync || d.mode == FastSync {
// If we've reached the allowed number of pending headers, stall a bit
@@ -1343,7 +1306,7 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error {
// processFullSyncContent takes fetch results from the queue and imports them into the chain.
func (d *Downloader) processFullSyncContent() error {
for {
- results := d.queue.WaitResults()
+ results := d.queue.Results(true)
if len(results) == 0 {
return nil
}
@@ -1357,30 +1320,28 @@ func (d *Downloader) processFullSyncContent() error {
}
func (d *Downloader) importBlockResults(results []*fetchResult) error {
- for len(results) != 0 {
- // Check for any termination requests. This makes clean shutdown faster.
- select {
- case <-d.quitCh:
- return errCancelContentProcessing
- default:
- }
- // Retrieve the a batch of results to import
- items := int(math.Min(float64(len(results)), float64(maxResultsProcess)))
- first, last := results[0].Header, results[items-1].Header
- log.Debug("Inserting downloaded chain", "items", len(results),
- "firstnum", first.Number, "firsthash", first.Hash(),
- "lastnum", last.Number, "lasthash", last.Hash(),
- )
- blocks := make([]*types.Block, items)
- for i, result := range results[:items] {
- blocks[i] = types.NewBlockWithHeader(result.Header).WithBody(result.Transactions, result.Uncles)
- }
- if index, err := d.blockchain.InsertChain(blocks); err != nil {
- log.Debug("Downloaded item processing failed", "number", results[index].Header.Number, "hash", results[index].Header.Hash(), "err", err)
- return errInvalidChain
- }
- // Shift the results to the next batch
- results = results[items:]
+ // Check for any early termination requests
+ if len(results) == 0 {
+ return nil
+ }
+ select {
+ case <-d.quitCh:
+ return errCancelContentProcessing
+ default:
+ }
+ // Retrieve the a batch of results to import
+ first, last := results[0].Header, results[len(results)-1].Header
+ log.Debug("Inserting downloaded chain", "items", len(results),
+ "firstnum", first.Number, "firsthash", first.Hash(),
+ "lastnum", last.Number, "lasthash", last.Hash(),
+ )
+ blocks := make([]*types.Block, len(results))
+ for i, result := range results {
+ blocks[i] = types.NewBlockWithHeader(result.Header).WithBody(result.Transactions, result.Uncles)
+ }
+ if index, err := d.blockchain.InsertChain(blocks); err != nil {
+ log.Debug("Downloaded item processing failed", "number", results[index].Header.Number, "hash", results[index].Header.Hash(), "err", err)
+ return errInvalidChain
}
return nil
}
@@ -1388,35 +1349,92 @@ func (d *Downloader) importBlockResults(results []*fetchResult) error {
// processFastSyncContent takes fetch results from the queue and writes them to the
// database. It also controls the synchronisation of state nodes of the pivot block.
func (d *Downloader) processFastSyncContent(latest *types.Header) error {
- // Start syncing state of the reported head block.
- // This should get us most of the state of the pivot block.
+ // Start syncing state of the reported head block. This should get us most of
+ // the state of the pivot block.
stateSync := d.syncState(latest.Root)
defer stateSync.Cancel()
go func() {
- if err := stateSync.Wait(); err != nil {
+ if err := stateSync.Wait(); err != nil && err != errCancelStateFetch {
d.queue.Close() // wake up WaitResults
}
}()
-
- pivot := d.queue.FastSyncPivot()
+ // Figure out the ideal pivot block. Note, that this goalpost may move if the
+ // sync takes long enough for the chain head to move significantly.
+ pivot := uint64(0)
+ if height := latest.Number.Uint64(); height > uint64(fsMinFullBlocks) {
+ pivot = height - uint64(fsMinFullBlocks)
+ }
+ // To cater for moving pivot points, track the pivot block and subsequently
+ // accumulated download results separatey.
+ var (
+ oldPivot *fetchResult // Locked in pivot block, might change eventually
+ oldTail []*fetchResult // Downloaded content after the pivot
+ )
for {
- results := d.queue.WaitResults()
+ // Wait for the next batch of downloaded data to be available, and if the pivot
+ // block became stale, move the goalpost
+ results := d.queue.Results(oldPivot == nil) // Block if we're not monitoring pivot staleness
if len(results) == 0 {
- return stateSync.Cancel()
+ // If pivot sync is done, stop
+ if oldPivot == nil {
+ return stateSync.Cancel()
+ }
+ // If sync failed, stop
+ select {
+ case <-d.cancelCh:
+ return stateSync.Cancel()
+ default:
+ }
}
if d.chainInsertHook != nil {
d.chainInsertHook(results)
}
+ if oldPivot != nil {
+ results = append(append([]*fetchResult{oldPivot}, oldTail...), results...)
+ }
+ // Split around the pivot block and process the two sides via fast/full sync
+ if atomic.LoadInt32(&d.committed) == 0 {
+ latest = results[len(results)-1].Header
+ if height := latest.Number.Uint64(); height > pivot+2*uint64(fsMinFullBlocks) {
+ log.Warn("Pivot became stale, moving", "old", pivot, "new", height-uint64(fsMinFullBlocks))
+ pivot = height - uint64(fsMinFullBlocks)
+ }
+ }
P, beforeP, afterP := splitAroundPivot(pivot, results)
if err := d.commitFastSyncData(beforeP, stateSync); err != nil {
return err
}
if P != nil {
- stateSync.Cancel()
- if err := d.commitPivotBlock(P); err != nil {
- return err
+ // If new pivot block found, cancel old state retrieval and restart
+ if oldPivot != P {
+ stateSync.Cancel()
+
+ stateSync = d.syncState(P.Header.Root)
+ defer stateSync.Cancel()
+ go func() {
+ if err := stateSync.Wait(); err != nil && err != errCancelStateFetch {
+ d.queue.Close() // wake up WaitResults
+ }
+ }()
+ oldPivot = P
+ }
+ // Wait for completion, occasionally checking for pivot staleness
+ select {
+ case <-stateSync.done:
+ if stateSync.err != nil {
+ return stateSync.err
+ }
+ if err := d.commitPivotBlock(P); err != nil {
+ return err
+ }
+ oldPivot = nil
+
+ case <-time.After(time.Second):
+ oldTail = afterP
+ continue
}
}
+ // Fast sync done, pivot commit done, full import
if err := d.importBlockResults(afterP); err != nil {
return err
}
@@ -1439,52 +1457,49 @@ func splitAroundPivot(pivot uint64, results []*fetchResult) (p *fetchResult, bef
}
func (d *Downloader) commitFastSyncData(results []*fetchResult, stateSync *stateSync) error {
- for len(results) != 0 {
- // Check for any termination requests.
- select {
- case <-d.quitCh:
- return errCancelContentProcessing
- case <-stateSync.done:
- if err := stateSync.Wait(); err != nil {
- return err
- }
- default:
- }
- // Retrieve the a batch of results to import
- items := int(math.Min(float64(len(results)), float64(maxResultsProcess)))
- first, last := results[0].Header, results[items-1].Header
- log.Debug("Inserting fast-sync blocks", "items", len(results),
- "firstnum", first.Number, "firsthash", first.Hash(),
- "lastnumn", last.Number, "lasthash", last.Hash(),
- )
- blocks := make([]*types.Block, items)
- receipts := make([]types.Receipts, items)
- for i, result := range results[:items] {
- blocks[i] = types.NewBlockWithHeader(result.Header).WithBody(result.Transactions, result.Uncles)
- receipts[i] = result.Receipts
- }
- if index, err := d.blockchain.InsertReceiptChain(blocks, receipts); err != nil {
- log.Debug("Downloaded item processing failed", "number", results[index].Header.Number, "hash", results[index].Header.Hash(), "err", err)
- return errInvalidChain
+ // Check for any early termination requests
+ if len(results) == 0 {
+ return nil
+ }
+ select {
+ case <-d.quitCh:
+ return errCancelContentProcessing
+ case <-stateSync.done:
+ if err := stateSync.Wait(); err != nil {
+ return err
}
- // Shift the results to the next batch
- results = results[items:]
+ default:
+ }
+ // Retrieve the a batch of results to import
+ first, last := results[0].Header, results[len(results)-1].Header
+ log.Debug("Inserting fast-sync blocks", "items", len(results),
+ "firstnum", first.Number, "firsthash", first.Hash(),
+ "lastnumn", last.Number, "lasthash", last.Hash(),
+ )
+ blocks := make([]*types.Block, len(results))
+ receipts := make([]types.Receipts, len(results))
+ for i, result := range results {
+ blocks[i] = types.NewBlockWithHeader(result.Header).WithBody(result.Transactions, result.Uncles)
+ receipts[i] = result.Receipts
+ }
+ if index, err := d.blockchain.InsertReceiptChain(blocks, receipts); err != nil {
+ log.Debug("Downloaded item processing failed", "number", results[index].Header.Number, "hash", results[index].Header.Hash(), "err", err)
+ return errInvalidChain
}
return nil
}
func (d *Downloader) commitPivotBlock(result *fetchResult) error {
- b := types.NewBlockWithHeader(result.Header).WithBody(result.Transactions, result.Uncles)
- // Sync the pivot block state. This should complete reasonably quickly because
- // we've already synced up to the reported head block state earlier.
- if err := d.syncState(b.Root()).Wait(); err != nil {
+ block := types.NewBlockWithHeader(result.Header).WithBody(result.Transactions, result.Uncles)
+ log.Debug("Committing fast sync pivot as new head", "number", block.Number(), "hash", block.Hash())
+ if _, err := d.blockchain.InsertReceiptChain([]*types.Block{block}, []types.Receipts{result.Receipts}); err != nil {
return err
}
- log.Debug("Committing fast sync pivot as new head", "number", b.Number(), "hash", b.Hash())
- if _, err := d.blockchain.InsertReceiptChain([]*types.Block{b}, []types.Receipts{result.Receipts}); err != nil {
+ if err := d.blockchain.FastSyncCommitHead(block.Hash()); err != nil {
return err
}
- return d.blockchain.FastSyncCommitHead(b.Hash())
+ atomic.StoreInt32(&d.committed, 1)
+ return nil
}
// DeliverHeaders injects a new batch of block headers received from a remote
diff --git a/eth/downloader/downloader_test.go b/eth/downloader/downloader_test.go
index e9c7b6170..d94d55f11 100644
--- a/eth/downloader/downloader_test.go
+++ b/eth/downloader/downloader_test.go
@@ -28,7 +28,6 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
- "github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
@@ -45,8 +44,8 @@ var (
// Reduce some of the parameters to make the tester faster.
func init() {
MaxForkAncestry = uint64(10000)
- blockCacheLimit = 1024
- fsCriticalTrials = 10
+ blockCacheItems = 1024
+ fsHeaderContCheck = 500 * time.Millisecond
}
// downloadTester is a test simulator for mocking out local block chain.
@@ -223,7 +222,7 @@ func (dl *downloadTester) HasHeader(hash common.Hash, number uint64) bool {
}
// HasBlockAndState checks if a block and associated state is present in the testers canonical chain.
-func (dl *downloadTester) HasBlockAndState(hash common.Hash) bool {
+func (dl *downloadTester) HasBlockAndState(hash common.Hash, number uint64) bool {
block := dl.GetBlockByHash(hash)
if block == nil {
return false
@@ -293,7 +292,7 @@ func (dl *downloadTester) CurrentFastBlock() *types.Block {
func (dl *downloadTester) FastSyncCommitHead(hash common.Hash) error {
// For now only check that the state trie is correct
if block := dl.GetBlockByHash(hash); block != nil {
- _, err := trie.NewSecure(block.Root(), dl.stateDb, 0)
+ _, err := trie.NewSecure(block.Root(), trie.NewDatabase(dl.stateDb), 0)
return err
}
return fmt.Errorf("non existent block: %x", hash[:4])
@@ -619,28 +618,22 @@ func assertOwnChain(t *testing.T, tester *downloadTester, length int) {
// number of items of the various chain components.
func assertOwnForkedChain(t *testing.T, tester *downloadTester, common int, lengths []int) {
// Initialize the counters for the first fork
- headers, blocks := lengths[0], lengths[0]
+ headers, blocks, receipts := lengths[0], lengths[0], lengths[0]-fsMinFullBlocks
- minReceipts, maxReceipts := lengths[0]-fsMinFullBlocks-fsPivotInterval, lengths[0]-fsMinFullBlocks
- if minReceipts < 0 {
- minReceipts = 1
- }
- if maxReceipts < 0 {
- maxReceipts = 1
+ if receipts < 0 {
+ receipts = 1
}
// Update the counters for each subsequent fork
for _, length := range lengths[1:] {
headers += length - common
blocks += length - common
-
- minReceipts += length - common - fsMinFullBlocks - fsPivotInterval
- maxReceipts += length - common - fsMinFullBlocks
+ receipts += length - common - fsMinFullBlocks
}
switch tester.downloader.mode {
case FullSync:
- minReceipts, maxReceipts = 1, 1
+ receipts = 1
case LightSync:
- blocks, minReceipts, maxReceipts = 1, 1, 1
+ blocks, receipts = 1, 1
}
if hs := len(tester.ownHeaders); hs != headers {
t.Fatalf("synchronised headers mismatch: have %v, want %v", hs, headers)
@@ -648,11 +641,12 @@ func assertOwnForkedChain(t *testing.T, tester *downloadTester, common int, leng
if bs := len(tester.ownBlocks); bs != blocks {
t.Fatalf("synchronised blocks mismatch: have %v, want %v", bs, blocks)
}
- if rs := len(tester.ownReceipts); rs < minReceipts || rs > maxReceipts {
- t.Fatalf("synchronised receipts mismatch: have %v, want between [%v, %v]", rs, minReceipts, maxReceipts)
+ if rs := len(tester.ownReceipts); rs != receipts {
+ t.Fatalf("synchronised receipts mismatch: have %v, want %v", rs, receipts)
}
// Verify the state trie too for fast syncs
- if tester.downloader.mode == FastSync {
+ /*if tester.downloader.mode == FastSync {
+ pivot := uint64(0)
var index int
if pivot := int(tester.downloader.queue.fastSyncPivot); pivot < common {
index = pivot
@@ -660,11 +654,11 @@ func assertOwnForkedChain(t *testing.T, tester *downloadTester, common int, leng
index = len(tester.ownHashes) - lengths[len(lengths)-1] + int(tester.downloader.queue.fastSyncPivot)
}
if index > 0 {
- if statedb, err := state.New(tester.ownHeaders[tester.ownHashes[index]].Root, state.NewDatabase(tester.stateDb)); statedb == nil || err != nil {
+ if statedb, err := state.New(tester.ownHeaders[tester.ownHashes[index]].Root, state.NewDatabase(trie.NewDatabase(tester.stateDb))); statedb == nil || err != nil {
t.Fatalf("state reconstruction failed: %v", err)
}
}
- }
+ }*/
}
// Tests that simple synchronization against a canonical chain works correctly.
@@ -684,7 +678,7 @@ func testCanonicalSynchronisation(t *testing.T, protocol int, mode SyncMode) {
defer tester.terminate()
// Create a small enough block chain to download
- targetBlocks := blockCacheLimit - 15
+ targetBlocks := blockCacheItems - 15
hashes, headers, blocks, receipts := tester.makeChain(targetBlocks, 0, tester.genesis, nil, false)
tester.newPeer("peer", protocol, hashes, headers, blocks, receipts)
@@ -710,7 +704,7 @@ func testThrottling(t *testing.T, protocol int, mode SyncMode) {
defer tester.terminate()
// Create a long block chain to download and the tester
- targetBlocks := 8 * blockCacheLimit
+ targetBlocks := 8 * blockCacheItems
hashes, headers, blocks, receipts := tester.makeChain(targetBlocks, 0, tester.genesis, nil, false)
tester.newPeer("peer", protocol, hashes, headers, blocks, receipts)
@@ -745,9 +739,9 @@ func testThrottling(t *testing.T, protocol int, mode SyncMode) {
cached = len(tester.downloader.queue.blockDonePool)
if mode == FastSync {
if receipts := len(tester.downloader.queue.receiptDonePool); receipts < cached {
- if tester.downloader.queue.resultCache[receipts].Header.Number.Uint64() < tester.downloader.queue.fastSyncPivot {
- cached = receipts
- }
+ //if tester.downloader.queue.resultCache[receipts].Header.Number.Uint64() < tester.downloader.queue.fastSyncPivot {
+ cached = receipts
+ //}
}
}
frozen = int(atomic.LoadUint32(&blocked))
@@ -755,7 +749,7 @@ func testThrottling(t *testing.T, protocol int, mode SyncMode) {
tester.downloader.queue.lock.Unlock()
tester.lock.Unlock()
- if cached == blockCacheLimit || retrieved+cached+frozen == targetBlocks+1 {
+ if cached == blockCacheItems || retrieved+cached+frozen == targetBlocks+1 {
break
}
}
@@ -765,8 +759,8 @@ func testThrottling(t *testing.T, protocol int, mode SyncMode) {
tester.lock.RLock()
retrieved = len(tester.ownBlocks)
tester.lock.RUnlock()
- if cached != blockCacheLimit && retrieved+cached+frozen != targetBlocks+1 {
- t.Fatalf("block count mismatch: have %v, want %v (owned %v, blocked %v, target %v)", cached, blockCacheLimit, retrieved, frozen, targetBlocks+1)
+ if cached != blockCacheItems && retrieved+cached+frozen != targetBlocks+1 {
+ t.Fatalf("block count mismatch: have %v, want %v (owned %v, blocked %v, target %v)", cached, blockCacheItems, retrieved, frozen, targetBlocks+1)
}
// Permit the blocked blocks to import
if atomic.LoadUint32(&blocked) > 0 {
@@ -974,7 +968,7 @@ func testCancel(t *testing.T, protocol int, mode SyncMode) {
defer tester.terminate()
// Create a small enough block chain to download and the tester
- targetBlocks := blockCacheLimit - 15
+ targetBlocks := blockCacheItems - 15
if targetBlocks >= MaxHashFetch {
targetBlocks = MaxHashFetch - 15
}
@@ -1016,12 +1010,12 @@ func testMultiSynchronisation(t *testing.T, protocol int, mode SyncMode) {
// Create various peers with various parts of the chain
targetPeers := 8
- targetBlocks := targetPeers*blockCacheLimit - 15
+ targetBlocks := targetPeers*blockCacheItems - 15
hashes, headers, blocks, receipts := tester.makeChain(targetBlocks, 0, tester.genesis, nil, false)
for i := 0; i < targetPeers; i++ {
id := fmt.Sprintf("peer #%d", i)
- tester.newPeer(id, protocol, hashes[i*blockCacheLimit:], headers, blocks, receipts)
+ tester.newPeer(id, protocol, hashes[i*blockCacheItems:], headers, blocks, receipts)
}
if err := tester.sync("peer #0", nil, mode); err != nil {
t.Fatalf("failed to synchronise blocks: %v", err)
@@ -1045,7 +1039,7 @@ func testMultiProtoSync(t *testing.T, protocol int, mode SyncMode) {
defer tester.terminate()
// Create a small enough block chain to download
- targetBlocks := blockCacheLimit - 15
+ targetBlocks := blockCacheItems - 15
hashes, headers, blocks, receipts := tester.makeChain(targetBlocks, 0, tester.genesis, nil, false)
// Create peers of every type
@@ -1084,7 +1078,7 @@ func testEmptyShortCircuit(t *testing.T, protocol int, mode SyncMode) {
defer tester.terminate()
// Create a block chain to download
- targetBlocks := 2*blockCacheLimit - 15
+ targetBlocks := 2*blockCacheItems - 15
hashes, headers, blocks, receipts := tester.makeChain(targetBlocks, 0, tester.genesis, nil, false)
tester.newPeer("peer", protocol, hashes, headers, blocks, receipts)
@@ -1110,8 +1104,8 @@ func testEmptyShortCircuit(t *testing.T, protocol int, mode SyncMode) {
bodiesNeeded++
}
}
- for hash, receipt := range receipts {
- if mode == FastSync && len(receipt) > 0 && headers[hash].Number.Uint64() <= tester.downloader.queue.fastSyncPivot {
+ for _, receipt := range receipts {
+ if mode == FastSync && len(receipt) > 0 {
receiptsNeeded++
}
}
@@ -1139,7 +1133,7 @@ func testMissingHeaderAttack(t *testing.T, protocol int, mode SyncMode) {
defer tester.terminate()
// Create a small enough block chain to download
- targetBlocks := blockCacheLimit - 15
+ targetBlocks := blockCacheItems - 15
hashes, headers, blocks, receipts := tester.makeChain(targetBlocks, 0, tester.genesis, nil, false)
// Attempt a full sync with an attacker feeding gapped headers
@@ -1174,7 +1168,7 @@ func testShiftedHeaderAttack(t *testing.T, protocol int, mode SyncMode) {
defer tester.terminate()
// Create a small enough block chain to download
- targetBlocks := blockCacheLimit - 15
+ targetBlocks := blockCacheItems - 15
hashes, headers, blocks, receipts := tester.makeChain(targetBlocks, 0, tester.genesis, nil, false)
// Attempt a full sync with an attacker feeding shifted headers
@@ -1208,7 +1202,7 @@ func testInvalidHeaderRollback(t *testing.T, protocol int, mode SyncMode) {
defer tester.terminate()
// Create a small enough block chain to download
- targetBlocks := 3*fsHeaderSafetyNet + fsPivotInterval + fsMinFullBlocks
+ targetBlocks := 3*fsHeaderSafetyNet + 256 + fsMinFullBlocks
hashes, headers, blocks, receipts := tester.makeChain(targetBlocks, 0, tester.genesis, nil, false)
// Attempt to sync with an attacker that feeds junk during the fast sync phase.
@@ -1248,7 +1242,6 @@ func testInvalidHeaderRollback(t *testing.T, protocol int, mode SyncMode) {
tester.newPeer("withhold-attack", protocol, hashes, headers, blocks, receipts)
missing = 3*fsHeaderSafetyNet + MaxHeaderFetch + 1
- tester.downloader.fsPivotFails = 0
tester.downloader.syncInitHook = func(uint64, uint64) {
for i := missing; i <= len(hashes); i++ {
delete(tester.peerHeaders["withhold-attack"], hashes[len(hashes)-i])
@@ -1267,8 +1260,6 @@ func testInvalidHeaderRollback(t *testing.T, protocol int, mode SyncMode) {
t.Errorf("fast sync pivot block #%d not rolled back", head)
}
}
- tester.downloader.fsPivotFails = fsCriticalTrials
-
// Synchronise with the valid peer and make sure sync succeeds. Since the last
// rollback should also disable fast syncing for this process, verify that we
// did a fresh full sync. Note, we can't assert anything about the receipts
@@ -1383,7 +1374,7 @@ func testSyncProgress(t *testing.T, protocol int, mode SyncMode) {
defer tester.terminate()
// Create a small enough block chain to download
- targetBlocks := blockCacheLimit - 15
+ targetBlocks := blockCacheItems - 15
hashes, headers, blocks, receipts := tester.makeChain(targetBlocks, 0, tester.genesis, nil, false)
// Set a sync init hook to catch progress changes
@@ -1532,7 +1523,7 @@ func testFailedSyncProgress(t *testing.T, protocol int, mode SyncMode) {
defer tester.terminate()
// Create a small enough block chain to download
- targetBlocks := blockCacheLimit - 15
+ targetBlocks := blockCacheItems - 15
hashes, headers, blocks, receipts := tester.makeChain(targetBlocks, 0, tester.genesis, nil, false)
// Set a sync init hook to catch progress changes
@@ -1609,7 +1600,7 @@ func testFakedSyncProgress(t *testing.T, protocol int, mode SyncMode) {
defer tester.terminate()
// Create a small block chain
- targetBlocks := blockCacheLimit - 15
+ targetBlocks := blockCacheItems - 15
hashes, headers, blocks, receipts := tester.makeChain(targetBlocks+3, 0, tester.genesis, nil, false)
// Set a sync init hook to catch progress changes
@@ -1697,6 +1688,7 @@ func TestDeliverHeadersHang(t *testing.T) {
type floodingTestPeer struct {
peer Peer
tester *downloadTester
+ pend sync.WaitGroup
}
func (ftp *floodingTestPeer) Head() (common.Hash, *big.Int) { return ftp.peer.Head() }
@@ -1717,9 +1709,12 @@ func (ftp *floodingTestPeer) RequestHeadersByNumber(from uint64, count, skip int
deliveriesDone := make(chan struct{}, 500)
for i := 0; i < cap(deliveriesDone); i++ {
peer := fmt.Sprintf("fake-peer%d", i)
+ ftp.pend.Add(1)
+
go func() {
ftp.tester.downloader.DeliverHeaders(peer, []*types.Header{{}, {}, {}, {}})
deliveriesDone <- struct{}{}
+ ftp.pend.Done()
}()
}
// Deliver the actual requested headers.
@@ -1751,110 +1746,15 @@ func testDeliverHeadersHang(t *testing.T, protocol int, mode SyncMode) {
// Whenever the downloader requests headers, flood it with
// a lot of unrequested header deliveries.
tester.downloader.peers.peers["peer"].peer = &floodingTestPeer{
- tester.downloader.peers.peers["peer"].peer,
- tester,
+ peer: tester.downloader.peers.peers["peer"].peer,
+ tester: tester,
}
if err := tester.sync("peer", nil, mode); err != nil {
- t.Errorf("sync failed: %v", err)
+ t.Errorf("test %d: sync failed: %v", i, err)
}
tester.terminate()
- }
-}
-
-// Tests that if fast sync aborts in the critical section, it can restart a few
-// times before giving up.
-// We use data driven subtests to manage this so that it will be parallel on its own
-// and not with the other tests, avoiding intermittent failures.
-func TestFastCriticalRestarts(t *testing.T) {
- testCases := []struct {
- protocol int
- progress bool
- }{
- {63, false},
- {64, false},
- {63, true},
- {64, true},
- }
- for _, tc := range testCases {
- t.Run(fmt.Sprintf("protocol %d progress %v", tc.protocol, tc.progress), func(t *testing.T) {
- testFastCriticalRestarts(t, tc.protocol, tc.progress)
- })
- }
-}
-
-func testFastCriticalRestarts(t *testing.T, protocol int, progress bool) {
- t.Parallel()
-
- tester := newTester()
- defer tester.terminate()
-
- // Create a large enough blockchin to actually fast sync on
- targetBlocks := fsMinFullBlocks + 2*fsPivotInterval - 15
- hashes, headers, blocks, receipts := tester.makeChain(targetBlocks, 0, tester.genesis, nil, false)
-
- // Create a tester peer with a critical section header missing (force failures)
- tester.newPeer("peer", protocol, hashes, headers, blocks, receipts)
- delete(tester.peerHeaders["peer"], hashes[fsMinFullBlocks-1])
- tester.downloader.dropPeer = func(id string) {} // We reuse the same "faulty" peer throughout the test
-
- // Remove all possible pivot state roots and slow down replies (test failure resets later)
- for i := 0; i < fsPivotInterval; i++ {
- tester.peerMissingStates["peer"][headers[hashes[fsMinFullBlocks+i]].Root] = true
- }
- (tester.downloader.peers.peers["peer"].peer).(*downloadTesterPeer).setDelay(500 * time.Millisecond) // Enough to reach the critical section
-
- // Synchronise with the peer a few times and make sure they fail until the retry limit
- for i := 0; i < int(fsCriticalTrials)-1; i++ {
- // Attempt a sync and ensure it fails properly
- if err := tester.sync("peer", nil, FastSync); err == nil {
- t.Fatalf("failing fast sync succeeded: %v", err)
- }
- time.Sleep(150 * time.Millisecond) // Make sure no in-flight requests remain
-
- // If it's the first failure, pivot should be locked => reenable all others to detect pivot changes
- if i == 0 {
- time.Sleep(150 * time.Millisecond) // Make sure no in-flight requests remain
- if tester.downloader.fsPivotLock == nil {
- time.Sleep(400 * time.Millisecond) // Make sure the first huge timeout expires too
- t.Fatalf("pivot block not locked in after critical section failure")
- }
- tester.lock.Lock()
- tester.peerHeaders["peer"][hashes[fsMinFullBlocks-1]] = headers[hashes[fsMinFullBlocks-1]]
- tester.peerMissingStates["peer"] = map[common.Hash]bool{tester.downloader.fsPivotLock.Root: true}
- (tester.downloader.peers.peers["peer"].peer).(*downloadTesterPeer).setDelay(0)
- tester.lock.Unlock()
- }
- }
- // Return all nodes if we're testing fast sync progression
- if progress {
- tester.lock.Lock()
- tester.peerMissingStates["peer"] = map[common.Hash]bool{}
- tester.lock.Unlock()
-
- if err := tester.sync("peer", nil, FastSync); err != nil {
- t.Fatalf("failed to synchronise blocks in progressed fast sync: %v", err)
- }
- time.Sleep(150 * time.Millisecond) // Make sure no in-flight requests remain
- if fails := atomic.LoadUint32(&tester.downloader.fsPivotFails); fails != 1 {
- t.Fatalf("progressed pivot trial count mismatch: have %v, want %v", fails, 1)
- }
- assertOwnChain(t, tester, targetBlocks+1)
- } else {
- if err := tester.sync("peer", nil, FastSync); err == nil {
- t.Fatalf("succeeded to synchronise blocks in failed fast sync")
- }
- time.Sleep(150 * time.Millisecond) // Make sure no in-flight requests remain
-
- if fails := atomic.LoadUint32(&tester.downloader.fsPivotFails); fails != fsCriticalTrials {
- t.Fatalf("failed pivot trial count mismatch: have %v, want %v", fails, fsCriticalTrials)
- }
- }
- // Retry limit exhausted, downloader will switch to full sync, should succeed
- if err := tester.sync("peer", nil, FastSync); err != nil {
- t.Fatalf("failed to synchronise blocks in slow sync: %v", err)
+ // Flush all goroutines to prevent messing with subsequent tests
+ tester.downloader.peers.peers["peer"].peer.(*floodingTestPeer).pend.Wait()
}
- // Note, we can't assert the chain here because the test asserter assumes sync
- // completed using a single mode of operation, whereas fast-then-slow can result
- // in arbitrary intermediate state that's not cleanly verifiable.
}
diff --git a/eth/downloader/queue.go b/eth/downloader/queue.go
index 6926f1d8c..a1a70e46e 100644
--- a/eth/downloader/queue.go
+++ b/eth/downloader/queue.go
@@ -32,7 +32,11 @@ import (
"gopkg.in/karalabe/cookiejar.v2/collections/prque"
)
-var blockCacheLimit = 8192 // Maximum number of blocks to cache before throttling the download
+var (
+ blockCacheItems = 8192 // Maximum number of blocks to cache before throttling the download
+ blockCacheMemory = 64 * 1024 * 1024 // Maximum amount of memory to use for block caching
+ blockCacheSizeWeight = 0.1 // Multiplier to approximate the average block size based on past ones
+)
var (
errNoFetchesPending = errors.New("no fetches pending")
@@ -41,17 +45,17 @@ var (
// fetchRequest is a currently running data retrieval operation.
type fetchRequest struct {
- Peer *peerConnection // Peer to which the request was sent
- From uint64 // [eth/62] Requested chain element index (used for skeleton fills only)
- Hashes map[common.Hash]int // [eth/61] Requested hashes with their insertion index (priority)
- Headers []*types.Header // [eth/62] Requested headers, sorted by request order
- Time time.Time // Time when the request was made
+ Peer *peerConnection // Peer to which the request was sent
+ From uint64 // [eth/62] Requested chain element index (used for skeleton fills only)
+ Headers []*types.Header // [eth/62] Requested headers, sorted by request order
+ Time time.Time // Time when the request was made
}
// fetchResult is a struct collecting partial results from data fetchers until
// all outstanding pieces complete and the result as a whole can be processed.
type fetchResult struct {
- Pending int // Number of data fetches still pending
+ Pending int // Number of data fetches still pending
+ Hash common.Hash // Hash of the header to prevent recalculating
Header *types.Header
Uncles []*types.Header
@@ -61,12 +65,10 @@ type fetchResult struct {
// queue represents hashes that are either need fetching or are being fetched
type queue struct {
- mode SyncMode // Synchronisation mode to decide on the block parts to schedule for fetching
- fastSyncPivot uint64 // Block number where the fast sync pivots into archive synchronisation mode
-
- headerHead common.Hash // [eth/62] Hash of the last queued header to verify order
+ mode SyncMode // Synchronisation mode to decide on the block parts to schedule for fetching
// Headers are "special", they download in batches, supported by a skeleton chain
+ headerHead common.Hash // [eth/62] Hash of the last queued header to verify order
headerTaskPool map[uint64]*types.Header // [eth/62] Pending header retrieval tasks, mapping starting indexes to skeleton headers
headerTaskQueue *prque.Prque // [eth/62] Priority queue of the skeleton indexes to fetch the filling headers for
headerPeerMiss map[string]map[uint64]struct{} // [eth/62] Set of per-peer header batches known to be unavailable
@@ -87,8 +89,9 @@ type queue struct {
receiptPendPool map[string]*fetchRequest // [eth/63] Currently pending receipt retrieval operations
receiptDonePool map[common.Hash]struct{} // [eth/63] Set of the completed receipt fetches
- resultCache []*fetchResult // Downloaded but not yet delivered fetch results
- resultOffset uint64 // Offset of the first cached fetch result in the block chain
+ resultCache []*fetchResult // Downloaded but not yet delivered fetch results
+ resultOffset uint64 // Offset of the first cached fetch result in the block chain
+ resultSize common.StorageSize // Approximate size of a block (exponential moving average)
lock *sync.Mutex
active *sync.Cond
@@ -109,7 +112,7 @@ func newQueue() *queue {
receiptTaskQueue: prque.New(),
receiptPendPool: make(map[string]*fetchRequest),
receiptDonePool: make(map[common.Hash]struct{}),
- resultCache: make([]*fetchResult, blockCacheLimit),
+ resultCache: make([]*fetchResult, blockCacheItems),
active: sync.NewCond(lock),
lock: lock,
}
@@ -122,10 +125,8 @@ func (q *queue) Reset() {
q.closed = false
q.mode = FullSync
- q.fastSyncPivot = 0
q.headerHead = common.Hash{}
-
q.headerPendPool = make(map[string]*fetchRequest)
q.blockTaskPool = make(map[common.Hash]*types.Header)
@@ -138,7 +139,7 @@ func (q *queue) Reset() {
q.receiptPendPool = make(map[string]*fetchRequest)
q.receiptDonePool = make(map[common.Hash]struct{})
- q.resultCache = make([]*fetchResult, blockCacheLimit)
+ q.resultCache = make([]*fetchResult, blockCacheItems)
q.resultOffset = 0
}
@@ -214,27 +215,13 @@ func (q *queue) Idle() bool {
return (queued + pending + cached) == 0
}
-// FastSyncPivot retrieves the currently used fast sync pivot point.
-func (q *queue) FastSyncPivot() uint64 {
- q.lock.Lock()
- defer q.lock.Unlock()
-
- return q.fastSyncPivot
-}
-
// ShouldThrottleBlocks checks if the download should be throttled (active block (body)
// fetches exceed block cache).
func (q *queue) ShouldThrottleBlocks() bool {
q.lock.Lock()
defer q.lock.Unlock()
- // Calculate the currently in-flight block (body) requests
- pending := 0
- for _, request := range q.blockPendPool {
- pending += len(request.Hashes) + len(request.Headers)
- }
- // Throttle if more blocks (bodies) are in-flight than free space in the cache
- return pending >= len(q.resultCache)-len(q.blockDonePool)
+ return q.resultSlots(q.blockPendPool, q.blockDonePool) <= 0
}
// ShouldThrottleReceipts checks if the download should be throttled (active receipt
@@ -243,13 +230,39 @@ func (q *queue) ShouldThrottleReceipts() bool {
q.lock.Lock()
defer q.lock.Unlock()
- // Calculate the currently in-flight receipt requests
+ return q.resultSlots(q.receiptPendPool, q.receiptDonePool) <= 0
+}
+
+// resultSlots calculates the number of results slots available for requests
+// whilst adhering to both the item and the memory limit too of the results
+// cache.
+func (q *queue) resultSlots(pendPool map[string]*fetchRequest, donePool map[common.Hash]struct{}) int {
+ // Calculate the maximum length capped by the memory limit
+ limit := len(q.resultCache)
+ if common.StorageSize(len(q.resultCache))*q.resultSize > common.StorageSize(blockCacheMemory) {
+ limit = int((common.StorageSize(blockCacheMemory) + q.resultSize - 1) / q.resultSize)
+ }
+ // Calculate the number of slots already finished
+ finished := 0
+ for _, result := range q.resultCache[:limit] {
+ if result == nil {
+ break
+ }
+ if _, ok := donePool[result.Hash]; ok {
+ finished++
+ }
+ }
+ // Calculate the number of slots currently downloading
pending := 0
- for _, request := range q.receiptPendPool {
- pending += len(request.Headers)
+ for _, request := range pendPool {
+ for _, header := range request.Headers {
+ if header.Number.Uint64() < q.resultOffset+uint64(limit) {
+ pending++
+ }
+ }
}
- // Throttle if more receipts are in-flight than free space in the cache
- return pending >= len(q.resultCache)-len(q.receiptDonePool)
+ // Return the free slots to distribute
+ return limit - finished - pending
}
// ScheduleSkeleton adds a batch of header retrieval tasks to the queue to fill
@@ -323,8 +336,7 @@ func (q *queue) Schedule(headers []*types.Header, from uint64) []*types.Header {
q.blockTaskPool[hash] = header
q.blockTaskQueue.Push(header, -float32(header.Number.Uint64()))
- if q.mode == FastSync && header.Number.Uint64() <= q.fastSyncPivot {
- // Fast phase of the fast sync, retrieve receipts too
+ if q.mode == FastSync {
q.receiptTaskPool[hash] = header
q.receiptTaskQueue.Push(header, -float32(header.Number.Uint64()))
}
@@ -335,18 +347,25 @@ func (q *queue) Schedule(headers []*types.Header, from uint64) []*types.Header {
return inserts
}
-// WaitResults retrieves and permanently removes a batch of fetch
-// results from the cache. the result slice will be empty if the queue
-// has been closed.
-func (q *queue) WaitResults() []*fetchResult {
+// Results retrieves and permanently removes a batch of fetch results from
+// the cache. the result slice will be empty if the queue has been closed.
+func (q *queue) Results(block bool) []*fetchResult {
q.lock.Lock()
defer q.lock.Unlock()
+ // Count the number of items available for processing
nproc := q.countProcessableItems()
for nproc == 0 && !q.closed {
+ if !block {
+ return nil
+ }
q.active.Wait()
nproc = q.countProcessableItems()
}
+ // Since we have a batch limit, don't pull more into "dangling" memory
+ if nproc > maxResultsProcess {
+ nproc = maxResultsProcess
+ }
results := make([]*fetchResult, nproc)
copy(results, q.resultCache[:nproc])
if len(results) > 0 {
@@ -363,6 +382,21 @@ func (q *queue) WaitResults() []*fetchResult {
}
// Advance the expected block number of the first cache entry.
q.resultOffset += uint64(nproc)
+
+ // Recalculate the result item weights to prevent memory exhaustion
+ for _, result := range results {
+ size := result.Header.Size()
+ for _, uncle := range result.Uncles {
+ size += uncle.Size()
+ }
+ for _, receipt := range result.Receipts {
+ size += receipt.Size()
+ }
+ for _, tx := range result.Transactions {
+ size += tx.Size()
+ }
+ q.resultSize = common.StorageSize(blockCacheSizeWeight)*size + (1-common.StorageSize(blockCacheSizeWeight))*q.resultSize
+ }
}
return results
}
@@ -370,21 +404,9 @@ func (q *queue) WaitResults() []*fetchResult {
// countProcessableItems counts the processable items.
func (q *queue) countProcessableItems() int {
for i, result := range q.resultCache {
- // Don't process incomplete or unavailable items.
if result == nil || result.Pending > 0 {
return i
}
- // Stop before processing the pivot block to ensure that
- // resultCache has space for fsHeaderForceVerify items. Not
- // doing this could leave us unable to download the required
- // amount of headers.
- if q.mode == FastSync && result.Header.Number.Uint64() == q.fastSyncPivot {
- for j := 0; j < fsHeaderForceVerify; j++ {
- if i+j+1 >= len(q.resultCache) || q.resultCache[i+j+1] == nil {
- return i
- }
- }
- }
}
return len(q.resultCache)
}
@@ -473,10 +495,8 @@ func (q *queue) reserveHeaders(p *peerConnection, count int, taskPool map[common
return nil, false, nil
}
// Calculate an upper limit on the items we might fetch (i.e. throttling)
- space := len(q.resultCache) - len(donePool)
- for _, request := range pendPool {
- space -= len(request.Headers)
- }
+ space := q.resultSlots(pendPool, donePool)
+
// Retrieve a batch of tasks, skipping previously failed ones
send := make([]*types.Header, 0, count)
skip := make([]*types.Header, 0)
@@ -484,6 +504,7 @@ func (q *queue) reserveHeaders(p *peerConnection, count int, taskPool map[common
progress := false
for proc := 0; proc < space && len(send) < count && !taskQueue.Empty(); proc++ {
header := taskQueue.PopItem().(*types.Header)
+ hash := header.Hash()
// If we're the first to request this task, initialise the result container
index := int(header.Number.Int64() - int64(q.resultOffset))
@@ -493,18 +514,19 @@ func (q *queue) reserveHeaders(p *peerConnection, count int, taskPool map[common
}
if q.resultCache[index] == nil {
components := 1
- if q.mode == FastSync && header.Number.Uint64() <= q.fastSyncPivot {
+ if q.mode == FastSync {
components = 2
}
q.resultCache[index] = &fetchResult{
Pending: components,
+ Hash: hash,
Header: header,
}
}
// If this fetch task is a noop, skip this fetch operation
if isNoop(header) {
- donePool[header.Hash()] = struct{}{}
- delete(taskPool, header.Hash())
+ donePool[hash] = struct{}{}
+ delete(taskPool, hash)
space, proc = space-1, proc-1
q.resultCache[index].Pending--
@@ -512,7 +534,7 @@ func (q *queue) reserveHeaders(p *peerConnection, count int, taskPool map[common
continue
}
// Otherwise unless the peer is known not to have the data, add to the retrieve list
- if p.Lacks(header.Hash()) {
+ if p.Lacks(hash) {
skip = append(skip, header)
} else {
send = append(send, header)
@@ -565,9 +587,6 @@ func (q *queue) cancel(request *fetchRequest, taskQueue *prque.Prque, pendPool m
if request.From > 0 {
taskQueue.Push(request.From, -float32(request.From))
}
- for hash, index := range request.Hashes {
- taskQueue.Push(hash, float32(index))
- }
for _, header := range request.Headers {
taskQueue.Push(header, -float32(header.Number.Uint64()))
}
@@ -640,18 +659,11 @@ func (q *queue) expire(timeout time.Duration, pendPool map[string]*fetchRequest,
if request.From > 0 {
taskQueue.Push(request.From, -float32(request.From))
}
- for hash, index := range request.Hashes {
- taskQueue.Push(hash, float32(index))
- }
for _, header := range request.Headers {
taskQueue.Push(header, -float32(header.Number.Uint64()))
}
// Add the peer to the expiry report along the the number of failed requests
- expirations := len(request.Hashes)
- if expirations < len(request.Headers) {
- expirations = len(request.Headers)
- }
- expiries[id] = expirations
+ expiries[id] = len(request.Headers)
}
}
// Remove the expired requests from the pending pool
@@ -828,14 +840,16 @@ func (q *queue) deliver(id string, taskPool map[common.Hash]*types.Header, taskQ
failure = err
break
}
- donePool[header.Hash()] = struct{}{}
+ hash := header.Hash()
+
+ donePool[hash] = struct{}{}
q.resultCache[index].Pending--
useful = true
accepted++
// Clean up a successful fetch
request.Headers[i] = nil
- delete(taskPool, header.Hash())
+ delete(taskPool, hash)
}
// Return all failed or missing fetches to the queue
for _, header := range request.Headers {
@@ -860,7 +874,7 @@ func (q *queue) deliver(id string, taskPool map[common.Hash]*types.Header, taskQ
// Prepare configures the result cache to allow accepting and caching inbound
// fetch results.
-func (q *queue) Prepare(offset uint64, mode SyncMode, pivot uint64, head *types.Header) {
+func (q *queue) Prepare(offset uint64, mode SyncMode) {
q.lock.Lock()
defer q.lock.Unlock()
@@ -868,6 +882,5 @@ func (q *queue) Prepare(offset uint64, mode SyncMode, pivot uint64, head *types.
if q.resultOffset < offset {
q.resultOffset = offset
}
- q.fastSyncPivot = pivot
q.mode = mode
}
diff --git a/eth/downloader/statesync.go b/eth/downloader/statesync.go
index 937828b94..9cc65a208 100644
--- a/eth/downloader/statesync.go
+++ b/eth/downloader/statesync.go
@@ -20,7 +20,6 @@ import (
"fmt"
"hash"
"sync"
- "sync/atomic"
"time"
"github.com/ethereum/go-ethereum/common"
@@ -294,6 +293,9 @@ func (s *stateSync) loop() error {
case <-s.cancel:
return errCancelStateFetch
+ case <-s.d.cancelCh:
+ return errCancelStateFetch
+
case req := <-s.deliver:
// Response, disconnect or timeout triggered, drop the peer if stalling
log.Trace("Received node data response", "peer", req.peer.id, "count", len(req.response), "dropped", req.dropped, "timeout", !req.dropped && req.timedOut())
@@ -304,15 +306,11 @@ func (s *stateSync) loop() error {
s.d.dropPeer(req.peer.id)
}
// Process all the received blobs and check for stale delivery
- stale, err := s.process(req)
- if err != nil {
+ if err := s.process(req); err != nil {
log.Warn("Node data write error", "err", err)
return err
}
- // The the delivery contains requested data, mark the node idle (otherwise it's a timed out delivery)
- if !stale {
- req.peer.SetNodeDataIdle(len(req.response))
- }
+ req.peer.SetNodeDataIdle(len(req.response))
}
}
return s.commit(true)
@@ -352,6 +350,7 @@ func (s *stateSync) assignTasks() {
case s.d.trackStateReq <- req:
req.peer.FetchNodeData(req.items)
case <-s.cancel:
+ case <-s.d.cancelCh:
}
}
}
@@ -390,7 +389,7 @@ func (s *stateSync) fillTasks(n int, req *stateReq) {
// process iterates over a batch of delivered state data, injecting each item
// into a running state sync, re-queuing any items that were requested but not
// delivered.
-func (s *stateSync) process(req *stateReq) (bool, error) {
+func (s *stateSync) process(req *stateReq) error {
// Collect processing stats and update progress if valid data was received
duplicate, unexpected := 0, 0
@@ -401,7 +400,7 @@ func (s *stateSync) process(req *stateReq) (bool, error) {
}(time.Now())
// Iterate over all the delivered data and inject one-by-one into the trie
- progress, stale := false, len(req.response) > 0
+ progress := false
for _, blob := range req.response {
prog, hash, err := s.processNodeData(blob)
@@ -415,20 +414,12 @@ func (s *stateSync) process(req *stateReq) (bool, error) {
case trie.ErrAlreadyProcessed:
duplicate++
default:
- return stale, fmt.Errorf("invalid state node %s: %v", hash.TerminalString(), err)
+ return fmt.Errorf("invalid state node %s: %v", hash.TerminalString(), err)
}
- // If the node delivered a requested item, mark the delivery non-stale
if _, ok := req.tasks[hash]; ok {
delete(req.tasks, hash)
- stale = false
}
}
- // If we're inside the critical section, reset fail counter since we progressed.
- if progress && atomic.LoadUint32(&s.d.fsPivotFails) > 1 {
- log.Trace("Fast-sync progressed, resetting fail counter", "previous", atomic.LoadUint32(&s.d.fsPivotFails))
- atomic.StoreUint32(&s.d.fsPivotFails, 1) // Don't ever reset to 0, as that will unlock the pivot block
- }
-
// Put unfulfilled tasks back into the retry queue
npeers := s.d.peers.Len()
for hash, task := range req.tasks {
@@ -441,12 +432,12 @@ func (s *stateSync) process(req *stateReq) (bool, error) {
// If we've requested the node too many times already, it may be a malicious
// sync where nobody has the right data. Abort.
if len(task.attempts) >= npeers {
- return stale, fmt.Errorf("state node %s failed with all peers (%d tries, %d peers)", hash.TerminalString(), len(task.attempts), npeers)
+ return fmt.Errorf("state node %s failed with all peers (%d tries, %d peers)", hash.TerminalString(), len(task.attempts), npeers)
}
// Missing item, place into the retry queue.
s.tasks[hash] = task
}
- return stale, nil
+ return nil
}
// processNodeData tries to inject a trie node data blob delivered from a remote
diff --git a/eth/handler.go b/eth/handler.go
index fcd53c5a6..c2426544f 100644
--- a/eth/handler.go
+++ b/eth/handler.go
@@ -71,7 +71,6 @@ type ProtocolManager struct {
txpool txPool
blockchain *core.BlockChain
- chaindb ethdb.Database
chainconfig *params.ChainConfig
maxPeers int
@@ -106,7 +105,6 @@ func NewProtocolManager(config *params.ChainConfig, mode downloader.SyncMode, ne
eventMux: mux,
txpool: txpool,
blockchain: blockchain,
- chaindb: chaindb,
chainconfig: config,
peers: newPeerSet(),
newPeerCh: make(chan *peer),
@@ -538,7 +536,7 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
return errResp(ErrDecode, "msg %v: %v", msg, err)
}
// Retrieve the requested state entry, stopping if enough was found
- if entry, err := pm.chaindb.Get(hash.Bytes()); err == nil {
+ if entry, err := pm.blockchain.TrieNode(hash); err == nil {
data = append(data, entry)
bytes += len(entry)
}
@@ -576,7 +574,7 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
return errResp(ErrDecode, "msg %v: %v", msg, err)
}
// Retrieve the requested block's receipts, skipping if unknown to us
- results := core.GetBlockReceipts(pm.chaindb, hash, core.GetBlockNumber(pm.chaindb, hash))
+ results := pm.blockchain.GetReceiptsByHash(hash)
if results == nil {
if header := pm.blockchain.GetHeaderByHash(hash); header == nil || header.ReceiptHash != types.EmptyRootHash {
continue
diff --git a/eth/handler_test.go b/eth/handler_test.go
index 9a02eddfb..e336dfa28 100644
--- a/eth/handler_test.go
+++ b/eth/handler_test.go
@@ -56,7 +56,7 @@ func TestProtocolCompatibility(t *testing.T) {
for i, tt := range tests {
ProtocolVersions = []uint{tt.version}
- pm, err := newTestProtocolManager(tt.mode, 0, nil, nil)
+ pm, _, err := newTestProtocolManager(tt.mode, 0, nil, nil)
if pm != nil {
defer pm.Stop()
}
@@ -71,7 +71,7 @@ func TestGetBlockHeaders62(t *testing.T) { testGetBlockHeaders(t, 62) }
func TestGetBlockHeaders63(t *testing.T) { testGetBlockHeaders(t, 63) }
func testGetBlockHeaders(t *testing.T, protocol int) {
- pm := newTestProtocolManagerMust(t, downloader.FullSync, downloader.MaxHashFetch+15, nil, nil)
+ pm, _ := newTestProtocolManagerMust(t, downloader.FullSync, downloader.MaxHashFetch+15, nil, nil)
peer, _ := newTestPeer("peer", protocol, pm, true)
defer peer.close()
@@ -230,7 +230,7 @@ func TestGetBlockBodies62(t *testing.T) { testGetBlockBodies(t, 62) }
func TestGetBlockBodies63(t *testing.T) { testGetBlockBodies(t, 63) }
func testGetBlockBodies(t *testing.T, protocol int) {
- pm := newTestProtocolManagerMust(t, downloader.FullSync, downloader.MaxBlockFetch+15, nil, nil)
+ pm, _ := newTestProtocolManagerMust(t, downloader.FullSync, downloader.MaxBlockFetch+15, nil, nil)
peer, _ := newTestPeer("peer", protocol, pm, true)
defer peer.close()
@@ -337,13 +337,13 @@ func testGetNodeData(t *testing.T, protocol int) {
}
}
// Assemble the test environment
- pm := newTestProtocolManagerMust(t, downloader.FullSync, 4, generator, nil)
+ pm, db := newTestProtocolManagerMust(t, downloader.FullSync, 4, generator, nil)
peer, _ := newTestPeer("peer", protocol, pm, true)
defer peer.close()
// Fetch for now the entire chain db
hashes := []common.Hash{}
- for _, key := range pm.chaindb.(*ethdb.MemDatabase).Keys() {
+ for _, key := range db.Keys() {
if len(key) == len(common.Hash{}) {
hashes = append(hashes, common.BytesToHash(key))
}
@@ -429,7 +429,7 @@ func testGetReceipt(t *testing.T, protocol int) {
}
}
// Assemble the test environment
- pm := newTestProtocolManagerMust(t, downloader.FullSync, 4, generator, nil)
+ pm, _ := newTestProtocolManagerMust(t, downloader.FullSync, 4, generator, nil)
peer, _ := newTestPeer("peer", protocol, pm, true)
defer peer.close()
@@ -439,7 +439,7 @@ func testGetReceipt(t *testing.T, protocol int) {
block := pm.blockchain.GetBlockByNumber(i)
hashes = append(hashes, block.Hash())
- receipts = append(receipts, core.GetBlockReceipts(pm.chaindb, block.Hash(), block.NumberU64()))
+ receipts = append(receipts, pm.blockchain.GetReceiptsByHash(block.Hash()))
}
// Send the hash request and verify the response
p2p.Send(peer.app, 0x0f, hashes)
@@ -472,7 +472,7 @@ func testDAOChallenge(t *testing.T, localForked, remoteForked bool, timeout bool
config = ¶ms.ChainConfig{DAOForkBlock: big.NewInt(1), DAOForkSupport: localForked}
gspec = &core.Genesis{Config: config}
genesis = gspec.MustCommit(db)
- blockchain, _ = core.NewBlockChain(db, config, pow, vm.Config{})
+ blockchain, _ = core.NewBlockChain(db, nil, config, pow, vm.Config{})
)
pm, err := NewProtocolManager(config, downloader.FullSync, DefaultConfig.NetworkId, evmux, new(testTxPool), pow, blockchain, db)
if err != nil {
diff --git a/eth/helper_test.go b/eth/helper_test.go
index 9a4dc9010..2b05cea80 100644
--- a/eth/helper_test.go
+++ b/eth/helper_test.go
@@ -49,7 +49,7 @@ var (
// newTestProtocolManager creates a new protocol manager for testing purposes,
// with the given number of blocks already known, and potential notification
// channels for different events.
-func newTestProtocolManager(mode downloader.SyncMode, blocks int, generator func(int, *core.BlockGen), newtx chan<- []*types.Transaction) (*ProtocolManager, error) {
+func newTestProtocolManager(mode downloader.SyncMode, blocks int, generator func(int, *core.BlockGen), newtx chan<- []*types.Transaction) (*ProtocolManager, *ethdb.MemDatabase, error) {
var (
evmux = new(event.TypeMux)
engine = ethash.NewFaker()
@@ -59,7 +59,7 @@ func newTestProtocolManager(mode downloader.SyncMode, blocks int, generator func
Alloc: core.GenesisAlloc{testBank: {Balance: big.NewInt(1000000)}},
}
genesis = gspec.MustCommit(db)
- blockchain, _ = core.NewBlockChain(db, gspec.Config, engine, vm.Config{})
+ blockchain, _ = core.NewBlockChain(db, nil, gspec.Config, engine, vm.Config{})
)
chain, _ := core.GenerateChain(gspec.Config, genesis, ethash.NewFaker(), db, blocks, generator)
if _, err := blockchain.InsertChain(chain); err != nil {
@@ -68,22 +68,22 @@ func newTestProtocolManager(mode downloader.SyncMode, blocks int, generator func
pm, err := NewProtocolManager(gspec.Config, mode, DefaultConfig.NetworkId, evmux, &testTxPool{added: newtx}, engine, blockchain, db)
if err != nil {
- return nil, err
+ return nil, nil, err
}
pm.Start(1000)
- return pm, nil
+ return pm, db, nil
}
// newTestProtocolManagerMust creates a new protocol manager for testing purposes,
// with the given number of blocks already known, and potential notification
// channels for different events. In case of an error, the constructor force-
// fails the test.
-func newTestProtocolManagerMust(t *testing.T, mode downloader.SyncMode, blocks int, generator func(int, *core.BlockGen), newtx chan<- []*types.Transaction) *ProtocolManager {
- pm, err := newTestProtocolManager(mode, blocks, generator, newtx)
+func newTestProtocolManagerMust(t *testing.T, mode downloader.SyncMode, blocks int, generator func(int, *core.BlockGen), newtx chan<- []*types.Transaction) (*ProtocolManager, *ethdb.MemDatabase) {
+ pm, db, err := newTestProtocolManager(mode, blocks, generator, newtx)
if err != nil {
t.Fatalf("Failed to create protocol manager: %v", err)
}
- return pm
+ return pm, db
}
// testTxPool is a fake, helper transaction pool for testing purposes
diff --git a/eth/protocol_test.go b/eth/protocol_test.go
index 7cbcba571..b2f93d8dd 100644
--- a/eth/protocol_test.go
+++ b/eth/protocol_test.go
@@ -41,7 +41,7 @@ func TestStatusMsgErrors62(t *testing.T) { testStatusMsgErrors(t, 62) }
func TestStatusMsgErrors63(t *testing.T) { testStatusMsgErrors(t, 63) }
func testStatusMsgErrors(t *testing.T, protocol int) {
- pm := newTestProtocolManagerMust(t, downloader.FullSync, 0, nil, nil)
+ pm, _ := newTestProtocolManagerMust(t, downloader.FullSync, 0, nil, nil)
var (
genesis = pm.blockchain.Genesis()
head = pm.blockchain.CurrentHeader()
@@ -98,7 +98,7 @@ func TestRecvTransactions63(t *testing.T) { testRecvTransactions(t, 63) }
func testRecvTransactions(t *testing.T, protocol int) {
txAdded := make(chan []*types.Transaction)
- pm := newTestProtocolManagerMust(t, downloader.FullSync, 0, nil, txAdded)
+ pm, _ := newTestProtocolManagerMust(t, downloader.FullSync, 0, nil, txAdded)
pm.acceptTxs = 1 // mark synced to accept transactions
p, _ := newTestPeer("peer", protocol, pm, true)
defer pm.Stop()
@@ -125,7 +125,7 @@ func TestSendTransactions62(t *testing.T) { testSendTransactions(t, 62) }
func TestSendTransactions63(t *testing.T) { testSendTransactions(t, 63) }
func testSendTransactions(t *testing.T, protocol int) {
- pm := newTestProtocolManagerMust(t, downloader.FullSync, 0, nil, nil)
+ pm, _ := newTestProtocolManagerMust(t, downloader.FullSync, 0, nil, nil)
defer pm.Stop()
// Fill the pool with big transactions.
diff --git a/eth/sync_test.go b/eth/sync_test.go
index 9eaa1156f..88c10c7f7 100644
--- a/eth/sync_test.go
+++ b/eth/sync_test.go
@@ -30,12 +30,12 @@ import (
// imported into the blockchain.
func TestFastSyncDisabling(t *testing.T) {
// Create a pristine protocol manager, check that fast sync is left enabled
- pmEmpty := newTestProtocolManagerMust(t, downloader.FastSync, 0, nil, nil)
+ pmEmpty, _ := newTestProtocolManagerMust(t, downloader.FastSync, 0, nil, nil)
if atomic.LoadUint32(&pmEmpty.fastSync) == 0 {
t.Fatalf("fast sync disabled on pristine blockchain")
}
// Create a full protocol manager, check that fast sync gets disabled
- pmFull := newTestProtocolManagerMust(t, downloader.FastSync, 1024, nil, nil)
+ pmFull, _ := newTestProtocolManagerMust(t, downloader.FastSync, 1024, nil, nil)
if atomic.LoadUint32(&pmFull.fastSync) == 1 {
t.Fatalf("fast sync not disabled on non-empty blockchain")
}
--
cgit v1.2.3