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all: swap out the C++ ethash to the pure Go one (mining todo)

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This commit is contained in:
Péter Szilágyi 2017-03-05 20:00:01 +02:00 committed by Felix Lange
parent 3b00a77de5
commit 567d41d936
31 changed files with 1348 additions and 1156 deletions
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3
accounts/abi/bind/backends/simulated.go
View File

@ -33,6 +33,7 @@ import (
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
"golang.org/x/net/context"
)
@ -62,7 +63,7 @@ type SimulatedBackend struct {
func NewSimulatedBackend(accounts ...core.GenesisAccount) *SimulatedBackend {
database, _ := ethdb.NewMemDatabase()
core.WriteGenesisBlockForTesting(database, accounts...)
blockchain, _ := core.NewBlockChain(database, chainConfig, new(core.FakePow), new(event.TypeMux), vm.Config{})
blockchain, _ := core.NewBlockChain(database, chainConfig, new(pow.FakePow), new(event.TypeMux), vm.Config{})
backend := &SimulatedBackend{database: database, blockchain: blockchain}
backend.rollback()
return backend

7
cmd/utils/flags.go
View File

@ -28,7 +28,6 @@ import (
"strconv"
"strings"
"github.com/ethereum/ethash"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/common"
@ -922,11 +921,11 @@ func MakeChain(ctx *cli.Context, stack *node.Node) (chain *core.BlockChain, chai
}
chainConfig := MakeChainConfigFromDb(ctx, chainDb)
pow := pow.PoW(core.FakePow{})
seal := pow.PoW(pow.FakePow{})
if !ctx.GlobalBool(FakePoWFlag.Name) {
pow = ethash.New()
seal = pow.NewFullEthash("", "")
}
chain, err = core.NewBlockChain(chainDb, chainConfig, pow, new(event.TypeMux), vm.Config{EnablePreimageRecording: ctx.GlobalBool(VMEnableDebugFlag.Name)})
chain, err = core.NewBlockChain(chainDb, chainConfig, seal, new(event.TypeMux), vm.Config{EnablePreimageRecording: ctx.GlobalBool(VMEnableDebugFlag.Name)})
if err != nil {
Fatalf("Could not start chainmanager: %v", err)
}

5
core/bench_test.go
View File

@ -31,6 +31,7 @@ import (
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
)
func BenchmarkInsertChain_empty_memdb(b *testing.B) {
@ -171,7 +172,7 @@ func benchInsertChain(b *testing.B, disk bool, gen func(int, *BlockGen)) {
// Time the insertion of the new chain.
// State and blocks are stored in the same DB.
evmux := new(event.TypeMux)
chainman, _ := NewBlockChain(db, &params.ChainConfig{HomesteadBlock: new(big.Int)}, FakePow{}, evmux, vm.Config{})
chainman, _ := NewBlockChain(db, &params.ChainConfig{HomesteadBlock: new(big.Int)}, pow.FakePow{}, evmux, vm.Config{})
defer chainman.Stop()
b.ReportAllocs()
b.ResetTimer()
@ -281,7 +282,7 @@ func benchReadChain(b *testing.B, full bool, count uint64) {
if err != nil {
b.Fatalf("error opening database at %v: %v", dir, err)
}
chain, err := NewBlockChain(db, testChainConfig(), FakePow{}, new(event.TypeMux), vm.Config{})
chain, err := NewBlockChain(db, testChainConfig(), pow.FakePow{}, new(event.TypeMux), vm.Config{})
if err != nil {
b.Fatalf("error creating chain: %v", err)
}

2
core/block_validator.go
View File

@ -244,7 +244,7 @@ func ValidateHeader(config *params.ChainConfig, pow pow.PoW, header *types.Heade
if checkPow {
// Verify the nonce of the header. Return an error if it's not valid
if !pow.Verify(types.NewBlockWithHeader(header)) {
if err := pow.Verify(types.NewBlockWithHeader(header)); err != nil {
return &BlockNonceErr{header.Number, header.Hash(), header.Nonce.Uint64()}
}
}

7
core/block_validator_test.go
View File

@ -28,6 +28,7 @@ import (
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
)
func testChainConfig() *params.ChainConfig {
@ -40,7 +41,7 @@ func proc() (Validator, *BlockChain) {
var mux event.TypeMux
WriteTestNetGenesisBlock(db)
blockchain, err := NewBlockChain(db, testChainConfig(), thePow(), &mux, vm.Config{})
blockchain, err := NewBlockChain(db, testChainConfig(), pow.NewTestEthash(), &mux, vm.Config{})
if err != nil {
fmt.Println(err)
}
@ -54,13 +55,13 @@ func TestNumber(t *testing.T) {
cfg := testChainConfig()
header := makeHeader(cfg, chain.Genesis(), statedb)
header.Number = big.NewInt(3)
err := ValidateHeader(cfg, FakePow{}, header, chain.Genesis().Header(), false, false)
err := ValidateHeader(cfg, pow.FakePow{}, header, chain.Genesis().Header(), false, false)
if err != BlockNumberErr {
t.Errorf("expected block number error, got %q", err)
}
header = makeHeader(cfg, chain.Genesis(), statedb)
err = ValidateHeader(cfg, FakePow{}, header, chain.Genesis().Header(), false, false)
err = ValidateHeader(cfg, pow.FakePow{}, header, chain.Genesis().Header(), false, false)
if err == BlockNumberErr {
t.Errorf("didn't expect block number error")
}

3
core/blockchain.go
View File

@ -223,6 +223,9 @@ func (self *BlockChain) loadLastState() error {
log.Info("Loaded most recent local full block", "number", self.currentBlock.Number(), "hash", self.currentBlock.Hash(), "td", blockTd)
log.Info("Loaded most recent local fast block", "number", self.currentFastBlock.Number(), "hash", self.currentFastBlock.Hash(), "td", fastTd)
// Try to be smart and issue a pow verification for the head to pre-generate caches
go self.pow.Verify(types.NewBlockWithHeader(currentHeader))
return nil
}

34
core/blockchain_test.go
View File

@ -27,7 +27,6 @@ import (
"testing"
"time"
"github.com/ethereum/ethash"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
@ -45,15 +44,10 @@ func init() {
runtime.GOMAXPROCS(runtime.NumCPU())
}
func thePow() pow.PoW {
pow, _ := ethash.NewForTesting()
return pow
}
func theBlockChain(db ethdb.Database, t *testing.T) *BlockChain {
var eventMux event.TypeMux
WriteTestNetGenesisBlock(db)
blockchain, err := NewBlockChain(db, testChainConfig(), thePow(), &eventMux, vm.Config{})
blockchain, err := NewBlockChain(db, testChainConfig(), pow.NewTestEthash(), &eventMux, vm.Config{})
if err != nil {
t.Error("failed creating blockchain:", err)
t.FailNow()
@ -476,7 +470,7 @@ func chm(genesis *types.Block, db ethdb.Database) *BlockChain {
chainDb: db,
genesisBlock: genesis,
eventMux: &eventMux,
pow: FakePow{},
pow: pow.FakePow{},
config: testChainConfig(),
}
valFn := func() HeaderValidator { return bc.Validator() }
@ -615,7 +609,7 @@ func testReorgBadHashes(t *testing.T, full bool) {
defer func() { delete(BadHashes, headers[3].Hash()) }()
}
// Create a new chain manager and check it rolled back the state
ncm, err := NewBlockChain(db, testChainConfig(), FakePow{}, new(event.TypeMux), vm.Config{})
ncm, err := NewBlockChain(db, testChainConfig(), pow.FakePow{}, new(event.TypeMux), vm.Config{})
if err != nil {
t.Fatalf("failed to create new chain manager: %v", err)
}
@ -736,7 +730,7 @@ func TestFastVsFullChains(t *testing.T) {
archiveDb, _ := ethdb.NewMemDatabase()
WriteGenesisBlockForTesting(archiveDb, GenesisAccount{address, funds})
archive, _ := NewBlockChain(archiveDb, testChainConfig(), FakePow{}, new(event.TypeMux), vm.Config{})
archive, _ := NewBlockChain(archiveDb, testChainConfig(), pow.FakePow{}, new(event.TypeMux), vm.Config{})
if n, err := archive.InsertChain(blocks); err != nil {
t.Fatalf("failed to process block %d: %v", n, err)
@ -744,7 +738,7 @@ func TestFastVsFullChains(t *testing.T) {
// Fast import the chain as a non-archive node to test
fastDb, _ := ethdb.NewMemDatabase()
WriteGenesisBlockForTesting(fastDb, GenesisAccount{address, funds})
fast, _ := NewBlockChain(fastDb, testChainConfig(), FakePow{}, new(event.TypeMux), vm.Config{})
fast, _ := NewBlockChain(fastDb, testChainConfig(), pow.FakePow{}, new(event.TypeMux), vm.Config{})
headers := make([]*types.Header, len(blocks))
for i, block := range blocks {
@ -820,7 +814,7 @@ func TestLightVsFastVsFullChainHeads(t *testing.T) {
archiveDb, _ := ethdb.NewMemDatabase()
WriteGenesisBlockForTesting(archiveDb, GenesisAccount{address, funds})
archive, _ := NewBlockChain(archiveDb, testChainConfig(), FakePow{}, new(event.TypeMux), vm.Config{})
archive, _ := NewBlockChain(archiveDb, testChainConfig(), pow.FakePow{}, new(event.TypeMux), vm.Config{})
if n, err := archive.InsertChain(blocks); err != nil {
t.Fatalf("failed to process block %d: %v", n, err)
@ -832,7 +826,7 @@ func TestLightVsFastVsFullChainHeads(t *testing.T) {
// Import the chain as a non-archive node and ensure all pointers are updated
fastDb, _ := ethdb.NewMemDatabase()
WriteGenesisBlockForTesting(fastDb, GenesisAccount{address, funds})
fast, _ := NewBlockChain(fastDb, testChainConfig(), FakePow{}, new(event.TypeMux), vm.Config{})
fast, _ := NewBlockChain(fastDb, testChainConfig(), pow.FakePow{}, new(event.TypeMux), vm.Config{})
headers := make([]*types.Header, len(blocks))
for i, block := range blocks {
@ -851,7 +845,7 @@ func TestLightVsFastVsFullChainHeads(t *testing.T) {
// Import the chain as a light node and ensure all pointers are updated
lightDb, _ := ethdb.NewMemDatabase()
WriteGenesisBlockForTesting(lightDb, GenesisAccount{address, funds})
light, _ := NewBlockChain(lightDb, testChainConfig(), FakePow{}, new(event.TypeMux), vm.Config{})
light, _ := NewBlockChain(lightDb, testChainConfig(), pow.FakePow{}, new(event.TypeMux), vm.Config{})
if n, err := light.InsertHeaderChain(headers, 1); err != nil {
t.Fatalf("failed to insert header %d: %v", n, err)
@ -917,7 +911,7 @@ func TestChainTxReorgs(t *testing.T) {
})
// Import the chain. This runs all block validation rules.
evmux := &event.TypeMux{}
blockchain, _ := NewBlockChain(db, testChainConfig(), FakePow{}, evmux, vm.Config{})
blockchain, _ := NewBlockChain(db, testChainConfig(), pow.FakePow{}, evmux, vm.Config{})
if i, err := blockchain.InsertChain(chain); err != nil {
t.Fatalf("failed to insert original chain[%d]: %v", i, err)
}
@ -991,7 +985,7 @@ func TestLogReorgs(t *testing.T) {
)
evmux := &event.TypeMux{}
blockchain, _ := NewBlockChain(db, testChainConfig(), FakePow{}, evmux, vm.Config{})
blockchain, _ := NewBlockChain(db, testChainConfig(), pow.FakePow{}, evmux, vm.Config{})
subs := evmux.Subscribe(RemovedLogsEvent{})
chain, _ := GenerateChain(params.TestChainConfig, genesis, db, 2, func(i int, gen *BlockGen) {
@ -1028,7 +1022,7 @@ func TestReorgSideEvent(t *testing.T) {
)
evmux := &event.TypeMux{}
blockchain, _ := NewBlockChain(db, testChainConfig(), FakePow{}, evmux, vm.Config{})
blockchain, _ := NewBlockChain(db, testChainConfig(), pow.FakePow{}, evmux, vm.Config{})
chain, _ := GenerateChain(params.TestChainConfig, genesis, db, 3, func(i int, gen *BlockGen) {})
if _, err := blockchain.InsertChain(chain); err != nil {
@ -1104,7 +1098,7 @@ func TestCanonicalBlockRetrieval(t *testing.T) {
)
evmux := &event.TypeMux{}
blockchain, _ := NewBlockChain(db, testChainConfig(), FakePow{}, evmux, vm.Config{})
blockchain, _ := NewBlockChain(db, testChainConfig(), pow.FakePow{}, evmux, vm.Config{})
chain, _ := GenerateChain(params.TestChainConfig, genesis, db, 10, func(i int, gen *BlockGen) {})
@ -1147,7 +1141,7 @@ func TestEIP155Transition(t *testing.T) {
mux event.TypeMux
)
blockchain, _ := NewBlockChain(db, config, FakePow{}, &mux, vm.Config{})
blockchain, _ := NewBlockChain(db, config, pow.FakePow{}, &mux, vm.Config{})
blocks, _ := GenerateChain(config, genesis, db, 4, func(i int, block *BlockGen) {
var (
tx *types.Transaction
@ -1251,7 +1245,7 @@ func TestEIP161AccountRemoval(t *testing.T) {
}
mux event.TypeMux
blockchain, _ = NewBlockChain(db, config, FakePow{}, &mux, vm.Config{})
blockchain, _ = NewBlockChain(db, config, pow.FakePow{}, &mux, vm.Config{})
)
blocks, _ := GenerateChain(config, genesis, db, 3, func(i int, block *BlockGen) {
var (

13
core/chain_makers.go
View File

@ -43,17 +43,6 @@ func MakeChainConfig() *params.ChainConfig {
}
}
// FakePow is a non-validating proof of work implementation.
// It returns true from Verify for any block.
type FakePow struct{}
func (f FakePow) Search(block pow.Block, stop <-chan struct{}, index int) (uint64, []byte) {
return 0, nil
}
func (f FakePow) Verify(block pow.Block) bool { return true }
func (f FakePow) GetHashrate() int64 { return 0 }
func (f FakePow) Turbo(bool) {}
// So we can deterministically seed different blockchains
var (
canonicalSeed = 1
@ -256,7 +245,7 @@ func newCanonical(n int, full bool) (ethdb.Database, *BlockChain, error) {
// Initialize a fresh chain with only a genesis block
genesis, _ := WriteTestNetGenesisBlock(db)
blockchain, _ := NewBlockChain(db, MakeChainConfig(), FakePow{}, evmux, vm.Config{})
blockchain, _ := NewBlockChain(db, MakeChainConfig(), pow.FakePow{}, evmux, vm.Config{})
// Create and inject the requested chain
if n == 0 {
return db, blockchain, nil

3
core/chain_makers_test.go
View File

@ -26,6 +26,7 @@ import (
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
)
func ExampleGenerateChain() {
@ -82,7 +83,7 @@ func ExampleGenerateChain() {
// Import the chain. This runs all block validation rules.
evmux := &event.TypeMux{}
blockchain, _ := NewBlockChain(db, chainConfig, FakePow{}, evmux, vm.Config{})
blockchain, _ := NewBlockChain(db, chainConfig, pow.FakePow{}, evmux, vm.Config{})
if i, err := blockchain.InsertChain(chain); err != nil {
fmt.Printf("insert error (block %d): %v\n", chain[i].NumberU64(), err)
return

2
core/chain_pow.go
View File

@ -65,7 +65,7 @@ func verifyNonces(checker pow.PoW, items []pow.Block) (chan<- struct{}, <-chan n
for i := 0; i < workers; i++ {
go func() {
for index := range tasks {
results <- nonceCheckResult{index: index, valid: checker.Verify(items[index])}
results <- nonceCheckResult{index: index, valid: checker.Verify(items[index]) == nil}
}
}()
}

28
core/chain_pow_test.go
View File

@ -17,6 +17,7 @@
package core
import (
"errors"
"math/big"
"runtime"
"testing"
@ -35,12 +36,16 @@ type failPow struct {
failing uint64
}
func (pow failPow) Search(pow.Block, <-chan struct{}, int) (uint64, []byte) {
func (pow failPow) Search(pow.Block, <-chan struct{}) (uint64, []byte) {
return 0, nil
}
func (pow failPow) Verify(block pow.Block) bool { return block.NumberU64() != pow.failing }
func (pow failPow) GetHashrate() int64 { return 0 }
func (pow failPow) Turbo(bool) {}
func (pow failPow) Verify(block pow.Block) error {
if block.NumberU64() == pow.failing {
return errors.New("failed")
}
return nil
}
func (pow failPow) Hashrate() float64 { return 0 }
// delayedPow is a non-validating proof of work implementation, that returns true
// from Verify for all blocks, but delays them the configured amount of time.
@ -48,12 +53,11 @@ type delayedPow struct {
delay time.Duration
}
func (pow delayedPow) Search(pow.Block, <-chan struct{}, int) (uint64, []byte) {
func (pow delayedPow) Search(pow.Block, <-chan struct{}) (uint64, []byte) {
return 0, nil
}
func (pow delayedPow) Verify(block pow.Block) bool { time.Sleep(pow.delay); return true }
func (pow delayedPow) GetHashrate() int64 { return 0 }
func (pow delayedPow) Turbo(bool) {}
func (pow delayedPow) Verify(block pow.Block) error { time.Sleep(pow.delay); return nil }
func (pow delayedPow) Hashrate() float64 { return 0 }
// Tests that simple POW verification works, for both good and bad blocks.
func TestPowVerification(t *testing.T) {
@ -75,11 +79,11 @@ func TestPowVerification(t *testing.T) {
switch {
case full && valid:
_, results = verifyNoncesFromBlocks(FakePow{}, []*types.Block{blocks[i]})
_, results = verifyNoncesFromBlocks(pow.FakePow{}, []*types.Block{blocks[i]})
case full && !valid:
_, results = verifyNoncesFromBlocks(failPow{blocks[i].NumberU64()}, []*types.Block{blocks[i]})
case !full && valid:
_, results = verifyNoncesFromHeaders(FakePow{}, []*types.Header{headers[i]})
_, results = verifyNoncesFromHeaders(pow.FakePow{}, []*types.Header{headers[i]})
case !full && !valid:
_, results = verifyNoncesFromHeaders(failPow{headers[i].Number.Uint64()}, []*types.Header{headers[i]})
}
@ -134,11 +138,11 @@ func testPowConcurrentVerification(t *testing.T, threads int) {
switch {
case full && valid:
_, results = verifyNoncesFromBlocks(FakePow{}, blocks)
_, results = verifyNoncesFromBlocks(pow.FakePow{}, blocks)
case full && !valid:
_, results = verifyNoncesFromBlocks(failPow{uint64(len(blocks) - 1)}, blocks)
case !full && valid:
_, results = verifyNoncesFromHeaders(FakePow{}, headers)
_, results = verifyNoncesFromHeaders(pow.FakePow{}, headers)
case !full && !valid:
_, results = verifyNoncesFromHeaders(failPow{uint64(len(headers) - 1)}, headers)
}

13
core/dao_test.go
View File

@ -24,6 +24,7 @@ import (
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
)
// Tests that DAO-fork enabled clients can properly filter out fork-commencing
@ -40,12 +41,12 @@ func TestDAOForkRangeExtradata(t *testing.T) {
proDb, _ := ethdb.NewMemDatabase()
WriteGenesisBlockForTesting(proDb)
proConf := &params.ChainConfig{HomesteadBlock: big.NewInt(0), DAOForkBlock: forkBlock, DAOForkSupport: true}
proBc, _ := NewBlockChain(proDb, proConf, new(FakePow), new(event.TypeMux), vm.Config{})
proBc, _ := NewBlockChain(proDb, proConf, new(pow.FakePow), new(event.TypeMux), vm.Config{})
conDb, _ := ethdb.NewMemDatabase()
WriteGenesisBlockForTesting(conDb)
conConf := &params.ChainConfig{HomesteadBlock: big.NewInt(0), DAOForkBlock: forkBlock, DAOForkSupport: false}
conBc, _ := NewBlockChain(conDb, conConf, new(FakePow), new(event.TypeMux), vm.Config{})
conBc, _ := NewBlockChain(conDb, conConf, new(pow.FakePow), new(event.TypeMux), vm.Config{})
if _, err := proBc.InsertChain(prefix); err != nil {
t.Fatalf("pro-fork: failed to import chain prefix: %v", err)
@ -58,7 +59,7 @@ func TestDAOForkRangeExtradata(t *testing.T) {
// Create a pro-fork block, and try to feed into the no-fork chain
db, _ = ethdb.NewMemDatabase()
WriteGenesisBlockForTesting(db)
bc, _ := NewBlockChain(db, conConf, new(FakePow), new(event.TypeMux), vm.Config{})
bc, _ := NewBlockChain(db, conConf, new(pow.FakePow), new(event.TypeMux), vm.Config{})
blocks := conBc.GetBlocksFromHash(conBc.CurrentBlock().Hash(), int(conBc.CurrentBlock().NumberU64()+1))
for j := 0; j < len(blocks)/2; j++ {
@ -79,7 +80,7 @@ func TestDAOForkRangeExtradata(t *testing.T) {
// Create a no-fork block, and try to feed into the pro-fork chain
db, _ = ethdb.NewMemDatabase()
WriteGenesisBlockForTesting(db)
bc, _ = NewBlockChain(db, proConf, new(FakePow), new(event.TypeMux), vm.Config{})
bc, _ = NewBlockChain(db, proConf, new(pow.FakePow), new(event.TypeMux), vm.Config{})
blocks = proBc.GetBlocksFromHash(proBc.CurrentBlock().Hash(), int(proBc.CurrentBlock().NumberU64()+1))
for j := 0; j < len(blocks)/2; j++ {
@ -101,7 +102,7 @@ func TestDAOForkRangeExtradata(t *testing.T) {
// Verify that contra-forkers accept pro-fork extra-datas after forking finishes
db, _ = ethdb.NewMemDatabase()
WriteGenesisBlockForTesting(db)
bc, _ := NewBlockChain(db, conConf, new(FakePow), new(event.TypeMux), vm.Config{})
bc, _ := NewBlockChain(db, conConf, new(pow.FakePow), new(event.TypeMux), vm.Config{})
blocks := conBc.GetBlocksFromHash(conBc.CurrentBlock().Hash(), int(conBc.CurrentBlock().NumberU64()+1))
for j := 0; j < len(blocks)/2; j++ {
@ -117,7 +118,7 @@ func TestDAOForkRangeExtradata(t *testing.T) {
// Verify that pro-forkers accept contra-fork extra-datas after forking finishes
db, _ = ethdb.NewMemDatabase()
WriteGenesisBlockForTesting(db)
bc, _ = NewBlockChain(db, proConf, new(FakePow), new(event.TypeMux), vm.Config{})
bc, _ = NewBlockChain(db, proConf, new(pow.FakePow), new(event.TypeMux), vm.Config{})
blocks = proBc.GetBlocksFromHash(proBc.CurrentBlock().Hash(), int(proBc.CurrentBlock().NumberU64()+1))
for j := 0; j < len(blocks)/2; j++ {

8
eth/backend.go
View File

@ -288,15 +288,15 @@ func CreatePoW(config *Config) (pow.PoW, error) {
switch {
case config.PowFake:
log.Warn("Ethash used in fake mode")
return pow.PoW(core.FakePow{}), nil
return pow.FakePow{}, nil
case config.PowTest:
log.Warn("Ethash used in test mode")
return ethash.NewForTesting()
return pow.NewTestEthash(), nil
case config.PowShared:
log.Warn("Ethash used in shared mode")
return ethash.NewShared(), nil
return pow.NewSharedEthash(), nil
default:
return ethash.New(), nil
return pow.NewFullEthash("", ""), nil
}
}

3
eth/handler_test.go
View File

@ -34,6 +34,7 @@ import (
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
)
var bigTxGas = new(big.Int).SetUint64(params.TxGas)
@ -468,7 +469,7 @@ func testDAOChallenge(t *testing.T, localForked, remoteForked bool, timeout bool
// Create a DAO aware protocol manager
var (
evmux = new(event.TypeMux)
pow = new(core.FakePow)
pow = new(pow.FakePow)
db, _ = ethdb.NewMemDatabase()
genesis = core.WriteGenesisBlockForTesting(db)
config = &params.ChainConfig{DAOForkBlock: big.NewInt(1), DAOForkSupport: localForked}

3
eth/helper_test.go
View File

@ -37,6 +37,7 @@ import (
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/discover"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
)
var (
@ -53,7 +54,7 @@ var (
func newTestProtocolManager(fastSync bool, blocks int, generator func(int, *core.BlockGen), newtx chan<- []*types.Transaction) (*ProtocolManager, error) {
var (
evmux = new(event.TypeMux)
pow = new(core.FakePow)
pow = new(pow.FakePow)
db, _ = ethdb.NewMemDatabase()
genesis = core.WriteGenesisBlockForTesting(db, testBank)
chainConfig = &params.ChainConfig{HomesteadBlock: big.NewInt(0)} // homestead set to 0 because of chain maker

8
internal/ethapi/api.go
View File

@ -25,7 +25,6 @@ import (
"strings"
"time"
"github.com/ethereum/ethash"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/common"
@ -39,6 +38,7 @@ import (
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/rpc"
"github.com/syndtr/goleveldb/leveldb"
@ -1378,11 +1378,7 @@ func (api *PublicDebugAPI) SeedHash(ctx context.Context, number uint64) (string,
if block == nil {
return "", fmt.Errorf("block #%d not found", number)
}
hash, err := ethash.GetSeedHash(number)
if err != nil {
return "", err
}
return fmt.Sprintf("0x%x", hash), nil
return fmt.Sprintf("0x%x", pow.EthashSeedHash(number)), nil
}
// PrivateDebugAPI is the collection of Etheruem APIs exposed over the private

3
les/helper_test.go
View File

@ -39,6 +39,7 @@ import (
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/discover"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
)
var (
@ -134,7 +135,7 @@ func testRCL() RequestCostList {
func newTestProtocolManager(lightSync bool, blocks int, generator func(int, *core.BlockGen)) (*ProtocolManager, ethdb.Database, *LesOdr, error) {
var (
evmux = new(event.TypeMux)
pow = new(core.FakePow)
pow = new(pow.FakePow)
db, _ = ethdb.NewMemDatabase()
genesis = core.WriteGenesisBlockForTesting(db, core.GenesisAccount{Address: testBankAddress, Balance: testBankFunds})
chainConfig = &params.ChainConfig{HomesteadBlock: big.NewInt(0)} // homestead set to 0 because of chain maker

3
light/lightchain.go
View File

@ -169,6 +169,9 @@ func (self *LightChain) loadLastState() error {
headerTd := self.GetTd(header.Hash(), header.Number.Uint64())
log.Info("Loaded most recent local header", "number", header.Number, "hash", header.Hash(), "td", headerTd)
// Try to be smart and issue a pow verification for the head to pre-generate caches
go self.pow.Verify(types.NewBlockWithHeader(header))
return nil
}

14
light/lightchain_test.go
View File

@ -22,7 +22,6 @@ import (
"runtime"
"testing"
"github.com/ethereum/ethash"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
@ -67,7 +66,7 @@ func newCanonical(n int) (ethdb.Database, *LightChain, error) {
// Initialize a fresh chain with only a genesis block
genesis, _ := core.WriteTestNetGenesisBlock(db)
blockchain, _ := NewLightChain(&dummyOdr{db: db}, testChainConfig(), core.FakePow{}, evmux)
blockchain, _ := NewLightChain(&dummyOdr{db: db}, testChainConfig(), pow.FakePow{}, evmux)
// Create and inject the requested chain
if n == 0 {
return db, blockchain, nil
@ -82,15 +81,10 @@ func init() {
runtime.GOMAXPROCS(runtime.NumCPU())
}
func thePow() pow.PoW {
pow, _ := ethash.NewForTesting()
return pow
}
func theLightChain(db ethdb.Database, t *testing.T) *LightChain {
var eventMux event.TypeMux
core.WriteTestNetGenesisBlock(db)
LightChain, err := NewLightChain(&dummyOdr{db: db}, testChainConfig(), thePow(), &eventMux)
LightChain, err := NewLightChain(&dummyOdr{db: db}, testChainConfig(), pow.NewTestEthash(), &eventMux)
if err != nil {
t.Error("failed creating LightChain:", err)
t.FailNow()
@ -311,7 +305,7 @@ func (odr *dummyOdr) Retrieve(ctx context.Context, req OdrRequest) error {
func chm(genesis *types.Block, db ethdb.Database) *LightChain {
odr := &dummyOdr{db: db}
var eventMux event.TypeMux
bc := &LightChain{odr: odr, chainDb: db, genesisBlock: genesis, eventMux: &eventMux, pow: core.FakePow{}}
bc := &LightChain{odr: odr, chainDb: db, genesisBlock: genesis, eventMux: &eventMux, pow: pow.FakePow{}}
bc.hc, _ = core.NewHeaderChain(db, testChainConfig(), bc.Validator, bc.getProcInterrupt)
bc.bodyCache, _ = lru.New(100)
bc.bodyRLPCache, _ = lru.New(100)
@ -394,7 +388,7 @@ func TestReorgBadHeaderHashes(t *testing.T) {
core.BadHashes[headers[3].Hash()] = true
defer func() { delete(core.BadHashes, headers[3].Hash()) }()
// Create a new chain manager and check it rolled back the state
ncm, err := NewLightChain(&dummyOdr{db: db}, testChainConfig(), core.FakePow{}, new(event.TypeMux))
ncm, err := NewLightChain(&dummyOdr{db: db}, testChainConfig(), pow.FakePow{}, new(event.TypeMux))
if err != nil {
t.Fatalf("failed to create new chain manager: %v", err)
}

3
light/odr_test.go
View File

@ -33,6 +33,7 @@ import (
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/trie"
"golang.org/x/net/context"
@ -247,7 +248,7 @@ func testChainGen(i int, block *core.BlockGen) {
func testChainOdr(t *testing.T, protocol int, expFail uint64, fn odrTestFn) {
var (
evmux = new(event.TypeMux)
pow = new(core.FakePow)
pow = new(pow.FakePow)
sdb, _ = ethdb.NewMemDatabase()
ldb, _ = ethdb.NewMemDatabase()
genesis = core.WriteGenesisBlockForTesting(sdb, core.GenesisAccount{Address: testBankAddress, Balance: testBankFunds})

3
light/txpool_test.go
View File

@ -29,6 +29,7 @@ import (
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
"golang.org/x/net/context"
)
@ -82,7 +83,7 @@ func TestTxPool(t *testing.T) {
var (
evmux = new(event.TypeMux)
pow = new(core.FakePow)
pow = new(pow.FakePow)
sdb, _ = ethdb.NewMemDatabase()
ldb, _ = ethdb.NewMemDatabase()
genesis = core.WriteGenesisBlockForTesting(sdb, core.GenesisAccount{Address: testBankAddress, Balance: testBankFunds})

1
log/format.go
View File

@ -23,7 +23,6 @@ const (
// locationTrims are trimmed for display to avoid unwieldy log lines.
var locationTrims = []string{
"github.com/ethereum/go-ethereum/",
"github.com/ethereum/ethash/",
}
// PrintOrigins sets or unsets log location (file:line) printing for terminal

4
miner/agent.go
View File

@ -111,7 +111,7 @@ func (self *CpuAgent) mine(work *Work, stop <-chan struct{}) {
log.Debug(fmt.Sprintf("(re)started agent[%d]. mining...\n", self.index))
// Mine
nonce, mixDigest := self.pow.Search(work.Block, stop, self.index)
nonce, mixDigest := self.pow.Search(work.Block, stop)
if nonce != 0 {
block := work.Block.WithMiningResult(types.EncodeNonce(nonce), common.BytesToHash(mixDigest))
self.returnCh <- &Result{work, block}
@ -121,5 +121,5 @@ func (self *CpuAgent) mine(work *Work, stop <-chan struct{}) {
}
func (self *CpuAgent) GetHashRate() int64 {
return self.pow.GetHashrate()
return int64(self.pow.Hashrate())
}

2
miner/miner.go
View File

@ -159,7 +159,7 @@ func (self *Miner) Mining() bool {
}
func (self *Miner) HashRate() (tot int64) {
tot += self.pow.GetHashrate()
tot += int64(self.pow.Hashrate())
// do we care this might race? is it worth we're rewriting some
// aspects of the worker/locking up agents so we can get an accurate
// hashrate?

7
miner/remote_agent.go
View File

@ -24,7 +24,6 @@ import (
"sync/atomic"
"time"
"github.com/ethereum/ethash"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/log"
@ -115,7 +114,7 @@ func (a *RemoteAgent) GetWork() ([3]string, error) {
block := a.currentWork.Block
res[0] = block.HashNoNonce().Hex()
seedHash, _ := ethash.GetSeedHash(block.NumberU64())
seedHash := pow.EthashSeedHash(block.NumberU64())
res[1] = common.BytesToHash(seedHash).Hex()
// Calculate the "target" to be returned to the external miner
n := big.NewInt(1)
@ -145,8 +144,8 @@ func (a *RemoteAgent) SubmitWork(nonce types.BlockNonce, mixDigest, hash common.
}
// Make sure the PoW solutions is indeed valid
block := work.Block.WithMiningResult(nonce, mixDigest)
if !a.pow.Verify(block) {
log.Warn(fmt.Sprintf("Invalid PoW submitted for %x", hash))
if err := a.pow.Verify(block); err != nil {
log.Warn(fmt.Sprintf("Invalid PoW submitted for %x: %v", hash, err))
return false
}
// Solutions seems to be valid, return to the miner and notify acceptance

37
pow/block.go
View File

@ -1,37 +0,0 @@
// Copyright 2014 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package pow
import (
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
)
type Block interface {
Difficulty() *big.Int
HashNoNonce() common.Hash
Nonce() uint64
MixDigest() common.Hash
NumberU64() uint64
}
type ChainManager interface {
GetBlockByNumber(uint64) *types.Block
CurrentBlock() *types.Block
}

1158
pow/ethash.go
View File

File diff suppressed because it is too large Load Diff

1071
pow/ethash_algo.go Normal file
View File

File diff suppressed because it is too large Load Diff

8
pow/ethash_test.go → pow/ethash_algo_test.go
View File

@ -675,14 +675,14 @@ func TestHashimoto(t *testing.T) {
}
}
// Becnhmarks the cache generation performance.
// Benchmarks the cache generation performance.
func BenchmarkCacheGeneration(b *testing.B) {
for i := 0; i < b.N; i++ {
generateCache(cacheSize(1), make([]byte, 32))
}
}
// Becnhmarks the dataset (small) generation performance.
// Benchmarks the dataset (small) generation performance.
func BenchmarkSmallDatasetGeneration(b *testing.B) {
rawCache := generateCache(65536, make([]byte, 32))
cache := prepare(uint64(len(rawCache)), bytes.NewReader(rawCache))
@ -693,7 +693,7 @@ func BenchmarkSmallDatasetGeneration(b *testing.B) {
}
}
// Becnhmarks the light verification performace.
// Benchmarks the light verification performance.
func BenchmarkHashimotoLight(b *testing.B) {
var (
rawCache = generateCache(cacheSize(1), make([]byte, 32))
@ -706,7 +706,7 @@ func BenchmarkHashimotoLight(b *testing.B) {
}
}
// Becnhmarks the full (small) verification performace.
// Benchmarks the full (small) verification performance.
func BenchmarkHashimotoFullSmall(b *testing.B) {
var (
rawCache = generateCache(65536, make([]byte, 32))

44
pow/pow.go
View File

@ -16,9 +16,43 @@
package pow
type PoW interface {
Search(block Block, stop <-chan struct{}, index int) (uint64, []byte)
Verify(block Block) bool
GetHashrate() int64
Turbo(bool)
import (
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
)
type Block interface {
Difficulty() *big.Int
HashNoNonce() common.Hash
Nonce() uint64
MixDigest() common.Hash
NumberU64() uint64
}
type ChainManager interface {
GetBlockByNumber(uint64) *types.Block
CurrentBlock() *types.Block
}
type PoW interface {
Verify(block Block) error
Search(block Block, stop <-chan struct{}) (uint64, []byte)
Hashrate() float64
}
// FakePow is a non-validating proof of work implementation.
// It returns true from Verify for any block.
type FakePow struct{}
// Verify implements PoW, returning a success for an input.
func (pow FakePow) Verify(block Block) error { return nil }
// Search implements PoW, returning the nonce 0 for any call.
func (pow FakePow) Search(block Block, stop <-chan struct{}) (uint64, []byte) {
return 0, nil
}
// Hashrate implements PoW, returning 0.
func (pow FakePow) Hashrate() float64 { return 0 }

4
tests/block_test_util.go
View File

@ -26,7 +26,6 @@ import (
"strconv"
"strings"
"github.com/ethereum/ethash"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
@ -36,6 +35,7 @@ import (
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
"github.com/ethereum/go-ethereum/rlp"
)
@ -172,7 +172,7 @@ func runBlockTest(homesteadBlock, daoForkBlock, gasPriceFork *big.Int, test *Blo
core.WriteHeadBlockHash(db, test.Genesis.Hash())
evmux := new(event.TypeMux)
config := &params.ChainConfig{HomesteadBlock: homesteadBlock, DAOForkBlock: daoForkBlock, DAOForkSupport: true, EIP150Block: gasPriceFork}
chain, err := core.NewBlockChain(db, config, ethash.NewShared(), evmux, vm.Config{})
chain, err := core.NewBlockChain(db, config, pow.NewSharedEthash(), evmux, vm.Config{})
if err != nil {
return err
}