238 lines
7.1 KiB
Go
238 lines
7.1 KiB
Go
// Copyright 2015 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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package eth
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import (
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"math/big"
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"sort"
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"sync"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/consensus"
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"github.com/ethereum/go-ethereum/consensus/ethash"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/eth/downloader"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/params"
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)
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var (
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// testKey is a private key to use for funding a tester account.
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testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
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// testAddr is the Ethereum address of the tester account.
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testAddr = crypto.PubkeyToAddress(testKey.PublicKey)
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)
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// testTxPool is a mock transaction pool that blindly accepts all transactions.
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// Its goal is to get around setting up a valid statedb for the balance and nonce
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// checks.
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type testTxPool struct {
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pool map[common.Hash]*types.Transaction // Hash map of collected transactions
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txFeed event.Feed // Notification feed to allow waiting for inclusion
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reannoTxFeed event.Feed // Notification feed to trigger reannouce
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lock sync.RWMutex // Protects the transaction pool
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}
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// newTestTxPool creates a mock transaction pool.
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func newTestTxPool() *testTxPool {
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return &testTxPool{
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pool: make(map[common.Hash]*types.Transaction),
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}
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}
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// Has returns an indicator whether txpool has a transaction
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// cached with the given hash.
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func (p *testTxPool) Has(hash common.Hash) bool {
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p.lock.Lock()
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defer p.lock.Unlock()
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return p.pool[hash] != nil
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}
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// Get retrieves the transaction from local txpool with given
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// tx hash.
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func (p *testTxPool) Get(hash common.Hash) *types.Transaction {
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p.lock.Lock()
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defer p.lock.Unlock()
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return p.pool[hash]
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}
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// AddRemotes appends a batch of transactions to the pool, and notifies any
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// listeners if the addition channel is non nil
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func (p *testTxPool) AddRemotes(txs []*types.Transaction) []error {
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p.lock.Lock()
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defer p.lock.Unlock()
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for _, tx := range txs {
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p.pool[tx.Hash()] = tx
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}
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p.txFeed.Send(core.NewTxsEvent{Txs: txs})
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return make([]error, len(txs))
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}
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// ReannouceTransactions announce the transactions to some peers.
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func (p *testTxPool) ReannouceTransactions(txs []*types.Transaction) []error {
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p.lock.Lock()
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defer p.lock.Unlock()
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for _, tx := range txs {
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p.pool[tx.Hash()] = tx
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}
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p.reannoTxFeed.Send(core.ReannoTxsEvent{Txs: txs})
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return make([]error, len(txs))
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}
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// Pending returns all the transactions known to the pool
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func (p *testTxPool) Pending(enforceTips bool) map[common.Address]types.Transactions {
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p.lock.RLock()
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defer p.lock.RUnlock()
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batches := make(map[common.Address]types.Transactions)
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for _, tx := range p.pool {
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from, _ := types.Sender(types.HomesteadSigner{}, tx)
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batches[from] = append(batches[from], tx)
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}
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for _, batch := range batches {
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sort.Sort(types.TxByNonce(batch))
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}
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return batches
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}
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// SubscribeNewTxsEvent should return an event subscription of NewTxsEvent and
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// send events to the given channel.
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func (p *testTxPool) SubscribeNewTxsEvent(ch chan<- core.NewTxsEvent) event.Subscription {
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return p.txFeed.Subscribe(ch)
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}
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// SubscribeReannoTxsEvent should return an event subscription of ReannoTxsEvent and
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// send events to the given channel.
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func (p *testTxPool) SubscribeReannoTxsEvent(ch chan<- core.ReannoTxsEvent) event.Subscription {
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return p.reannoTxFeed.Subscribe(ch)
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}
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// testHandler is a live implementation of the Ethereum protocol handler, just
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// preinitialized with some sane testing defaults and the transaction pool mocked
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// out.
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type testHandler struct {
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db ethdb.Database
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chain *core.BlockChain
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txpool *testTxPool
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votepool *testVotePool
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handler *handler
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}
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// newTestHandler creates a new handler for testing purposes with no blocks.
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func newTestHandler() *testHandler {
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return newTestHandlerWithBlocks(0)
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}
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// newTestHandlerWithBlocks creates a new handler for testing purposes, with a
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// given number of initial blocks.
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func newTestHandlerWithBlocks(blocks int) *testHandler {
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// Create a database pre-initialize with a genesis block
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db := rawdb.NewMemoryDatabase()
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(&core.Genesis{
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Config: params.TestChainConfig,
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Alloc: core.GenesisAlloc{testAddr: {Balance: big.NewInt(1000000)}},
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}).MustCommit(db)
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chain, _ := core.NewBlockChain(db, nil, params.TestChainConfig, ethash.NewFaker(), vm.Config{}, nil, nil)
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bs, _ := core.GenerateChain(params.TestChainConfig, chain.Genesis(), ethash.NewFaker(), db, blocks, nil)
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if _, err := chain.InsertChain(bs); err != nil {
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panic(err)
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}
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txpool := newTestTxPool()
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votepool := newTestVotePool()
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handler, _ := newHandler(&handlerConfig{
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Database: db,
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Chain: chain,
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TxPool: txpool,
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Merger: consensus.NewMerger(rawdb.NewMemoryDatabase()),
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VotePool: votepool,
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Network: 1,
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Sync: downloader.SnapSync,
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BloomCache: 1,
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})
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handler.Start(1000)
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return &testHandler{
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db: db,
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chain: chain,
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txpool: txpool,
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votepool: votepool,
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handler: handler,
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}
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}
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// close tears down the handler and all its internal constructs.
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func (b *testHandler) close() {
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b.handler.Stop()
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b.chain.Stop()
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}
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// newTestVotePool creates a mock vote pool.
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type testVotePool struct {
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pool map[common.Hash]*types.VoteEnvelope // Hash map of collected votes
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voteFeed event.Feed // Notification feed to allow waiting for inclusion
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lock sync.RWMutex // Protects the vote pool
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}
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// newTestVotePool creates a mock vote pool.
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func newTestVotePool() *testVotePool {
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return &testVotePool{
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pool: make(map[common.Hash]*types.VoteEnvelope),
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}
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}
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func (t *testVotePool) PutVote(vote *types.VoteEnvelope) {
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t.lock.Lock()
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defer t.lock.Unlock()
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t.pool[vote.Hash()] = vote
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t.voteFeed.Send(core.NewVoteEvent{Vote: vote})
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}
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func (t *testVotePool) FetchVoteByBlockHash(blockHash common.Hash) []*types.VoteEnvelope {
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panic("implement me")
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}
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func (t *testVotePool) GetVotes() []*types.VoteEnvelope {
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t.lock.RLock()
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defer t.lock.RUnlock()
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votes := make([]*types.VoteEnvelope, 0, len(t.pool))
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for _, vote := range t.pool {
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votes = append(votes, vote)
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}
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return votes
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}
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func (t *testVotePool) SubscribeNewVoteEvent(ch chan<- core.NewVoteEvent) event.Subscription {
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return t.voteFeed.Subscribe(ch)
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}
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