erigon-pulse/cmd/rpcdaemon/commands/tracing.go

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package commands
import (
"context"
"fmt"
jsoniter "github.com/json-iterator/go"
"github.com/ledgerwatch/erigon/common"
"github.com/ledgerwatch/erigon/consensus/ethash"
"github.com/ledgerwatch/erigon/core/rawdb"
"github.com/ledgerwatch/erigon/core/state"
"github.com/ledgerwatch/erigon/core/types"
"github.com/ledgerwatch/erigon/eth/tracers"
"github.com/ledgerwatch/erigon/ethdb"
"github.com/ledgerwatch/erigon/internal/ethapi"
"github.com/ledgerwatch/erigon/rpc"
"github.com/ledgerwatch/erigon/turbo/adapter"
"github.com/ledgerwatch/erigon/turbo/rpchelper"
"github.com/ledgerwatch/erigon/turbo/transactions"
)
// TraceTransaction implements debug_traceTransaction. Returns Geth style transaction traces.
func (api *PrivateDebugAPIImpl) TraceTransaction(ctx context.Context, hash common.Hash, config *tracers.TraceConfig, stream *jsoniter.Stream) error {
tx, err := api.db.BeginRo(ctx)
if err != nil {
return err
}
defer tx.Rollback()
// Retrieve the transaction and assemble its EVM context
txn, blockHash, _, txIndex := rawdb.ReadTransaction(tx, hash)
if txn == nil {
return fmt.Errorf("transaction %#x not found", hash)
}
getter := adapter.NewBlockGetter(tx)
chainConfig, err := api.chainConfig(tx)
if err != nil {
return err
}
getHeader := func(hash common.Hash, number uint64) *types.Header {
return rawdb.ReadHeader(tx, hash, number)
}
checkTEVM := ethdb.GetCheckTEVM(tx)
msg, blockCtx, txCtx, ibs, _, err := transactions.ComputeTxEnv(ctx, getter, chainConfig, getHeader, checkTEVM, ethash.NewFaker(), tx, blockHash, txIndex)
if err != nil {
return err
}
// Trace the transaction and return
return transactions.TraceTx(ctx, msg, blockCtx, txCtx, ibs, config, chainConfig, stream)
}
func (api *PrivateDebugAPIImpl) TraceCall(ctx context.Context, args ethapi.CallArgs, blockNrOrHash rpc.BlockNumberOrHash, config *tracers.TraceConfig, stream *jsoniter.Stream) error {
dbtx, err := api.db.BeginRo(ctx)
if err != nil {
return err
}
defer dbtx.Rollback()
chainConfig, err := api.chainConfig(dbtx)
if err != nil {
return err
}
blockNumber, hash, err := rpchelper.GetBlockNumber(blockNrOrHash, dbtx, api.filters)
if err != nil {
return err
}
var stateReader state.StateReader
if num, ok := blockNrOrHash.Number(); ok && num == rpc.LatestBlockNumber {
stateReader = state.NewPlainStateReader(dbtx)
} else {
stateReader = state.NewPlainKvState(dbtx, blockNumber)
}
header := rawdb.ReadHeader(dbtx, hash, blockNumber)
if header == nil {
return fmt.Errorf("block %d(%x) not found", blockNumber, hash)
}
ibs := state.New(stateReader)
msg := args.ToMessage(api.GasCap)
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blockCtx, txCtx := transactions.GetEvmContext(msg, header, blockNrOrHash.RequireCanonical, dbtx)
// Trace the transaction and return
return transactions.TraceTx(ctx, msg, blockCtx, txCtx, ibs, config, chainConfig, stream)
}