mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-23 12:07:17 +00:00
292 lines
8.4 KiB
Go
292 lines
8.4 KiB
Go
package commands
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import (
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"context"
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"fmt"
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"math/big"
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"time"
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"github.com/ledgerwatch/erigon/common"
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"github.com/ledgerwatch/erigon/common/hexutil"
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"github.com/ledgerwatch/erigon/common/math"
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"github.com/ledgerwatch/erigon/core"
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"github.com/ledgerwatch/erigon/core/rawdb"
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"github.com/ledgerwatch/erigon/core/state"
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"github.com/ledgerwatch/erigon/core/types"
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"github.com/ledgerwatch/erigon/core/vm"
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"github.com/ledgerwatch/erigon/log"
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"github.com/ledgerwatch/erigon/rpc"
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"github.com/ledgerwatch/erigon/turbo/adapter/ethapi"
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"github.com/ledgerwatch/erigon/turbo/rpchelper"
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"github.com/ledgerwatch/erigon/turbo/transactions"
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"golang.org/x/crypto/sha3"
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)
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func (api *APIImpl) CallBundle(ctx context.Context, txHashes []common.Hash, stateBlockNumberOrHash rpc.BlockNumberOrHash, timeoutMilliSecondsPtr *int64) (map[string]interface{}, error) {
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tx, err := api.db.BeginRo(ctx)
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if err != nil {
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return nil, err
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}
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defer tx.Rollback()
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chainConfig, err := api.chainConfig(tx)
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if err != nil {
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return nil, err
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}
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if len(txHashes) == 0 {
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return nil, nil
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}
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var txs types.Transactions
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for _, txHash := range txHashes {
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txn, _, _, _ := rawdb.ReadTransaction(tx, txHash)
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if txn == nil {
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return nil, nil // not error, see https://github.com/ledgerwatch/turbo-geth/issues/1645
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}
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txs = append(txs, txn)
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}
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defer func(start time.Time) { log.Debug("Executing EVM call finished", "runtime", time.Since(start)) }(time.Now())
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stateBlockNumber, hash, err := rpchelper.GetBlockNumber(stateBlockNumberOrHash, tx, api.filters)
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if err != nil {
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return nil, err
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}
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var stateReader state.StateReader
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if num, ok := stateBlockNumberOrHash.Number(); ok && num == rpc.LatestBlockNumber {
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stateReader = state.NewPlainStateReader(tx)
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} else {
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stateReader = state.NewPlainKvState(tx, stateBlockNumber)
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}
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st := state.New(stateReader)
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parent := rawdb.ReadHeader(tx, hash, stateBlockNumber)
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if parent == nil {
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return nil, fmt.Errorf("block %d(%x) not found", stateBlockNumber, hash)
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}
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blockNumber := stateBlockNumber + 1
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timestamp := parent.Time // Dont care about the timestamp
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coinbase := parent.Coinbase
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header := &types.Header{
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ParentHash: parent.Hash(),
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Number: big.NewInt(int64(blockNumber)),
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GasLimit: parent.GasLimit,
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Time: timestamp,
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Difficulty: parent.Difficulty,
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Coinbase: coinbase,
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}
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// Get a new instance of the EVM
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signer := types.MakeSigner(chainConfig, blockNumber)
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firstMsg, err := txs[0].AsMessage(*signer, nil)
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if err != nil {
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return nil, err
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}
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blockCtx, txCtx := transactions.GetEvmContext(firstMsg, header, stateBlockNumberOrHash.RequireCanonical, tx)
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evm := vm.NewEVM(blockCtx, txCtx, st, chainConfig, vm.Config{Debug: false})
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timeoutMilliSeconds := int64(5000)
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if timeoutMilliSecondsPtr != nil {
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timeoutMilliSeconds = *timeoutMilliSecondsPtr
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}
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timeout := time.Millisecond * time.Duration(timeoutMilliSeconds)
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// Setup context so it may be cancelled the call has completed
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// or, in case of unmetered gas, setup a context with a timeout.
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var cancel context.CancelFunc
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if timeout > 0 {
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ctx, cancel = context.WithTimeout(ctx, timeout)
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} else {
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ctx, cancel = context.WithCancel(ctx)
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}
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// Make sure the context is cancelled when the call has completed
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// this makes sure resources are cleaned up.
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defer cancel()
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// Wait for the context to be done and cancel the evm. Even if the
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// EVM has finished, cancelling may be done (repeatedly)
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go func() {
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<-ctx.Done()
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evm.Cancel()
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}()
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// Setup the gas pool (also for unmetered requests)
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// and apply the message.
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gp := new(core.GasPool).AddGas(math.MaxUint64)
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results := []map[string]interface{}{}
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bundleHash := sha3.NewLegacyKeccak256()
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for _, txn := range txs {
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msg, err := txn.AsMessage(*signer, nil)
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if err != nil {
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return nil, err
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}
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// Execute the transaction message
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result, err := core.ApplyMessage(evm, msg, gp, true /* refunds */, false /* gasBailout */)
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if err != nil {
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return nil, err
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}
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// If the timer caused an abort, return an appropriate error message
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if evm.Cancelled() {
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return nil, fmt.Errorf("execution aborted (timeout = %v)", timeout)
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}
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txHash := txn.Hash().String()
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jsonResult := map[string]interface{}{
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"txHash": txHash,
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"gasUsed": result.UsedGas,
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}
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bundleHash.Write(txn.Hash().Bytes())
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if result.Err != nil {
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jsonResult["error"] = result.Err.Error()
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} else {
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jsonResult["value"] = common.BytesToHash(result.Return())
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}
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results = append(results, jsonResult)
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}
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ret := map[string]interface{}{}
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ret["results"] = results
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ret["bundleHash"] = hexutil.Encode(bundleHash.Sum(nil))
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return ret, nil
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}
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// GetBlockByNumber implements eth_getBlockByNumber. Returns information about a block given the block's number.
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func (api *APIImpl) GetBlockByNumber(ctx context.Context, number rpc.BlockNumber, fullTx bool) (map[string]interface{}, error) {
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tx, err := api.db.BeginRo(ctx)
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if err != nil {
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return nil, err
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}
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defer tx.Rollback()
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b, err := api.getBlockByNumber(number, tx)
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if err != nil {
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return nil, err
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}
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if b == nil {
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return nil, nil
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}
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additionalFields := make(map[string]interface{})
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td, err := rawdb.ReadTd(tx, b.Hash(), b.NumberU64())
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if err != nil {
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return nil, err
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}
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additionalFields["totalDifficulty"] = (*hexutil.Big)(td)
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response, err := ethapi.RPCMarshalBlock(b, true, fullTx, additionalFields)
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if err == nil && number == rpc.PendingBlockNumber {
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// Pending blocks need to nil out a few fields
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for _, field := range []string{"hash", "nonce", "miner"} {
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response[field] = nil
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}
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}
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return response, err
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}
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// GetBlockByHash implements eth_getBlockByHash. Returns information about a block given the block's hash.
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func (api *APIImpl) GetBlockByHash(ctx context.Context, numberOrHash rpc.BlockNumberOrHash, fullTx bool) (map[string]interface{}, error) {
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if numberOrHash.BlockHash == nil {
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// some web3.js based apps (like ethstats client) for some reason call
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// eth_getBlockByHash with a block number as a parameter
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// so no matter how weird that is, we would love to support that.
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if numberOrHash.BlockNumber == nil {
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return nil, nil // not error, see https://github.com/ledgerwatch/erigon/issues/1645
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}
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return api.GetBlockByNumber(ctx, *numberOrHash.BlockNumber, fullTx)
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}
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hash := *numberOrHash.BlockHash
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tx, err := api.db.BeginRo(ctx)
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if err != nil {
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return nil, err
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}
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defer tx.Rollback()
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additionalFields := make(map[string]interface{})
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block, err := rawdb.ReadBlockByHash(tx, hash)
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if err != nil {
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return nil, err
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}
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if block == nil {
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return nil, nil // not error, see https://github.com/ledgerwatch/erigon/issues/1645
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}
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number := block.NumberU64()
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td, err := rawdb.ReadTd(tx, hash, number)
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if err != nil {
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return nil, err
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}
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additionalFields["totalDifficulty"] = (*hexutil.Big)(td)
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response, err := ethapi.RPCMarshalBlock(block, true, fullTx, additionalFields)
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if err == nil && int64(number) == rpc.PendingBlockNumber.Int64() {
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// Pending blocks need to nil out a few fields
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for _, field := range []string{"hash", "nonce", "miner"} {
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response[field] = nil
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}
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}
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return response, err
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}
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// GetBlockTransactionCountByNumber implements eth_getBlockTransactionCountByNumber. Returns the number of transactions in a block given the block's block number.
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func (api *APIImpl) GetBlockTransactionCountByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*hexutil.Uint, error) {
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tx, err := api.db.BeginRo(ctx)
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if err != nil {
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return nil, err
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}
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defer tx.Rollback()
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if blockNr == rpc.PendingBlockNumber {
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b, err := api.getBlockByNumber(blockNr, tx)
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if err != nil {
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return nil, err
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}
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if b == nil {
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return nil, nil
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}
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n := hexutil.Uint(len(b.Transactions()))
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return &n, nil
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}
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blockNum, err := getBlockNumber(blockNr, tx)
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if err != nil {
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return nil, err
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}
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body, _, txAmount, err := rawdb.ReadBodyByNumber(tx, blockNum)
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if err != nil {
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return nil, err
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}
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if body == nil {
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return nil, nil
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}
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n := hexutil.Uint(txAmount)
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return &n, nil
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}
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// GetBlockTransactionCountByHash implements eth_getBlockTransactionCountByHash. Returns the number of transactions in a block given the block's block hash.
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func (api *APIImpl) GetBlockTransactionCountByHash(ctx context.Context, blockHash common.Hash) (*hexutil.Uint, error) {
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tx, err := api.db.BeginRo(ctx)
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if err != nil {
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return nil, err
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}
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defer tx.Rollback()
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num := rawdb.ReadHeaderNumber(tx, blockHash)
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if num == nil {
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return nil, nil
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}
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body, _, txAmount := rawdb.ReadBodyWithoutTransactions(tx, blockHash, *num)
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if body == nil {
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return nil, nil
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}
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n := hexutil.Uint(txAmount)
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return &n, nil
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}
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