forked from cerc-io/plugeth
224 lines
6.6 KiB
Go
224 lines
6.6 KiB
Go
// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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// This file contains a miner stress test based on the Clique consensus engine.
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package main
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import (
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"bytes"
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"crypto/ecdsa"
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"math/big"
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"math/rand"
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"os"
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"os/signal"
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"time"
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"github.com/ethereum/go-ethereum/accounts/keystore"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/fdlimit"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/txpool/legacypool"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/eth"
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"github.com/ethereum/go-ethereum/eth/downloader"
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"github.com/ethereum/go-ethereum/eth/ethconfig"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/miner"
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"github.com/ethereum/go-ethereum/node"
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"github.com/ethereum/go-ethereum/p2p"
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"github.com/ethereum/go-ethereum/p2p/enode"
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"github.com/ethereum/go-ethereum/params"
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)
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func main() {
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log.Root().SetHandler(log.LvlFilterHandler(log.LvlInfo, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
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fdlimit.Raise(2048)
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// Generate a batch of accounts to seal and fund with
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faucets := make([]*ecdsa.PrivateKey, 128)
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for i := 0; i < len(faucets); i++ {
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faucets[i], _ = crypto.GenerateKey()
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}
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sealers := make([]*ecdsa.PrivateKey, 4)
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for i := 0; i < len(sealers); i++ {
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sealers[i], _ = crypto.GenerateKey()
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}
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// Create a Clique network based off of the Sepolia config
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genesis := makeGenesis(faucets, sealers)
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// Handle interrupts.
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interruptCh := make(chan os.Signal, 5)
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signal.Notify(interruptCh, os.Interrupt)
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var (
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stacks []*node.Node
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nodes []*eth.Ethereum
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enodes []*enode.Node
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)
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for _, sealer := range sealers {
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// Start the node and wait until it's up
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stack, ethBackend, err := makeSealer(genesis)
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if err != nil {
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panic(err)
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}
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defer stack.Close()
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for stack.Server().NodeInfo().Ports.Listener == 0 {
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time.Sleep(250 * time.Millisecond)
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}
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// Connect the node to all the previous ones
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for _, n := range enodes {
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stack.Server().AddPeer(n)
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}
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// Start tracking the node and its enode
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stacks = append(stacks, stack)
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nodes = append(nodes, ethBackend)
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enodes = append(enodes, stack.Server().Self())
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// Inject the signer key and start sealing with it
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ks := keystore.NewKeyStore(stack.KeyStoreDir(), keystore.LightScryptN, keystore.LightScryptP)
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signer, err := ks.ImportECDSA(sealer, "")
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if err != nil {
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panic(err)
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}
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if err := ks.Unlock(signer, ""); err != nil {
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panic(err)
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}
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stack.AccountManager().AddBackend(ks)
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}
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// Iterate over all the nodes and start signing on them
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time.Sleep(3 * time.Second)
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for _, node := range nodes {
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if err := node.StartMining(); err != nil {
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panic(err)
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}
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}
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time.Sleep(3 * time.Second)
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// Start injecting transactions from the faucet like crazy
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nonces := make([]uint64, len(faucets))
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for {
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// Stop when interrupted.
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select {
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case <-interruptCh:
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for _, node := range stacks {
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node.Close()
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}
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return
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default:
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}
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// Pick a random signer node
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index := rand.Intn(len(faucets))
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backend := nodes[index%len(nodes)]
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// Create a self transaction and inject into the pool
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tx, err := types.SignTx(types.NewTransaction(nonces[index], crypto.PubkeyToAddress(faucets[index].PublicKey), new(big.Int), 21000, big.NewInt(100000000000), nil), types.HomesteadSigner{}, faucets[index])
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if err != nil {
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panic(err)
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}
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if err := backend.TxPool().Add([]*types.Transaction{tx}, true, false); err != nil {
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panic(err)
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}
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nonces[index]++
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// Wait if we're too saturated
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if pend, _ := backend.TxPool().Stats(); pend > 2048 {
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time.Sleep(100 * time.Millisecond)
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}
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}
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}
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// makeGenesis creates a custom Clique genesis block based on some pre-defined
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// signer and faucet accounts.
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func makeGenesis(faucets []*ecdsa.PrivateKey, sealers []*ecdsa.PrivateKey) *core.Genesis {
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// Create a Clique network based off of the Sepolia config
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genesis := core.DefaultSepoliaGenesisBlock()
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genesis.GasLimit = 25000000
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genesis.Config.ChainID = big.NewInt(18)
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genesis.Config.Clique.Period = 1
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genesis.Alloc = core.GenesisAlloc{}
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for _, faucet := range faucets {
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genesis.Alloc[crypto.PubkeyToAddress(faucet.PublicKey)] = core.GenesisAccount{
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Balance: new(big.Int).Exp(big.NewInt(2), big.NewInt(128), nil),
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}
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}
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// Sort the signers and embed into the extra-data section
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signers := make([]common.Address, len(sealers))
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for i, sealer := range sealers {
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signers[i] = crypto.PubkeyToAddress(sealer.PublicKey)
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}
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for i := 0; i < len(signers); i++ {
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for j := i + 1; j < len(signers); j++ {
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if bytes.Compare(signers[i][:], signers[j][:]) > 0 {
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signers[i], signers[j] = signers[j], signers[i]
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}
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}
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}
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genesis.ExtraData = make([]byte, 32+len(signers)*common.AddressLength+65)
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for i, signer := range signers {
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copy(genesis.ExtraData[32+i*common.AddressLength:], signer[:])
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}
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// Return the genesis block for initialization
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return genesis
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}
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func makeSealer(genesis *core.Genesis) (*node.Node, *eth.Ethereum, error) {
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// Define the basic configurations for the Ethereum node
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datadir, _ := os.MkdirTemp("", "")
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config := &node.Config{
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Name: "geth",
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Version: params.Version,
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DataDir: datadir,
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P2P: p2p.Config{
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ListenAddr: "0.0.0.0:0",
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NoDiscovery: true,
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MaxPeers: 25,
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},
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}
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// Start the node and configure a full Ethereum node on it
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stack, err := node.New(config)
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if err != nil {
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return nil, nil, err
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}
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// Create and register the backend
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ethBackend, err := eth.New(stack, ðconfig.Config{
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Genesis: genesis,
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NetworkId: genesis.Config.ChainID.Uint64(),
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SyncMode: downloader.FullSync,
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DatabaseCache: 256,
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DatabaseHandles: 256,
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TxPool: legacypool.DefaultConfig,
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GPO: ethconfig.Defaults.GPO,
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Miner: miner.Config{
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GasCeil: genesis.GasLimit * 11 / 10,
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GasPrice: big.NewInt(1),
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Recommit: time.Second,
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},
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})
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if err != nil {
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return nil, nil, err
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}
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err = stack.Start()
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return stack, ethBackend, err
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}
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