128 lines
3.5 KiB
Go
128 lines
3.5 KiB
Go
// Copyright 2017 AMIS Technologies
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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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package k8s
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import (
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"context"
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"crypto/ecdsa"
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"math/big"
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"sync"
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"time"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/jpmorganchase/istanbul-tools/client"
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istcommon "github.com/jpmorganchase/istanbul-tools/common"
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)
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type Transactor interface {
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AccountKeys() []*ecdsa.PrivateKey
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SendTransactions(client.Client, []*ecdsa.PrivateKey, *big.Int, time.Duration, time.Duration) error
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PreloadTransactions(client.Client, []*ecdsa.PrivateKey, *big.Int, int) error
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}
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func (eth *ethereum) AccountKeys() []*ecdsa.PrivateKey {
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return eth.accounts
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}
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// SendTransactions is to send a lot of transactions by each account in geth.
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// duration: the period of sending transactions
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// rate: total tx per second
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func (eth *ethereum) SendTransactions(client client.Client, accounts []*ecdsa.PrivateKey, amount *big.Int, duration, frequnce time.Duration) error {
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var fns []func() error
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for i, key := range accounts {
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i := i
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key := key
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fn := func() error {
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fromAddr := crypto.PubkeyToAddress(key.PublicKey)
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toAddr := crypto.PubkeyToAddress(accounts[(i+1)%len(accounts)].PublicKey)
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timeout := time.After(duration)
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ticker := time.NewTicker(frequnce)
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defer ticker.Stop()
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nonce, err := client.NonceAt(context.Background(), fromAddr, nil)
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if err != nil {
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log.Error("Failed to get nonce", "addr", fromAddr, "err", err)
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return err
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}
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var wg sync.WaitGroup
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defer wg.Wait()
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errCh := make(chan error)
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for {
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select {
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case <-timeout:
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return nil
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case err := <-errCh:
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log.Error("Failed to SendEther", "addr", fromAddr, "to", toAddr, "err", err)
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return err
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case <-ticker.C:
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wg.Add(1)
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go func(nonce uint64, wg *sync.WaitGroup) {
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if err := istcommon.SendEther(client, key, toAddr, amount, nonce); err != nil {
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select {
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case errCh <- err:
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default:
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}
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}
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wg.Done()
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}(nonce, &wg)
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nonce++
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}
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}
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}
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fns = append(fns, fn)
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}
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return executeInParallel(fns...)
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}
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func (eth *ethereum) PreloadTransactions(client client.Client, accounts []*ecdsa.PrivateKey, amount *big.Int, txCount int) error {
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eachCount := txCount / len(accounts)
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var fns []func() error
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for i, key := range accounts {
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i := i
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key := key
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fn := func() error {
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fromAddr := crypto.PubkeyToAddress(key.PublicKey)
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toAddr := crypto.PubkeyToAddress(accounts[(i+1)%len(accounts)].PublicKey)
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nonce, err := client.NonceAt(context.Background(), fromAddr, nil)
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if err != nil {
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log.Error("Failed to get nonce", "addr", fromAddr, "err", err)
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return err
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}
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for i := 0; i < eachCount; i++ {
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if err := istcommon.SendEther(client, key, toAddr, amount, nonce); err != nil {
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return err
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}
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nonce++
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}
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return nil
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}
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fns = append(fns, fn)
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}
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return executeInParallel(fns...)
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}
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