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

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pull/3776/head
Péter Szilágyi 8 years ago committed by Felix Lange
parent 3b00a77de5
commit 567d41d936
31 changed files with 1337 additions and 1145 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 3
      accounts/abi/bind/backends/simulated.go
  2. 7
      cmd/utils/flags.go
  3. 5
      core/bench_test.go
  4. 2
      core/block_validator.go
  5. 7
      core/block_validator_test.go
  6. 3
      core/blockchain.go
  7. 34
      core/blockchain_test.go
  8. 13
      core/chain_makers.go
  9. 3
      core/chain_makers_test.go
  10. 2
      core/chain_pow.go
  11. 28
      core/chain_pow_test.go
  12. 13
      core/dao_test.go
  13. 8
      eth/backend.go
  14. 3
      eth/handler_test.go
  15. 3
      eth/helper_test.go
  16. 8
      internal/ethapi/api.go
  17. 3
      les/helper_test.go
  18. 3
      light/lightchain.go
  19. 14
      light/lightchain_test.go
  20. 3
      light/odr_test.go
  21. 3
      light/txpool_test.go
  22. 1
      log/format.go
  23. 4
      miner/agent.go
  24. 2
      miner/miner.go
  25. 7
      miner/remote_agent.go
  26. 37
      pow/block.go
  27. 1138
      pow/ethash.go
  28. 1071
      pow/ethash_algo.go
  29. 8
      pow/ethash_algo_test.go
  30. 42
      pow/pow.go
  31. 4
      tests/block_test_util.go

3
accounts/abi/bind/backends/simulated.go
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@ -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
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@ -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
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@ -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
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@ -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
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@ -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
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@ -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
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@ -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
Unescape 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
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@ -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
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@ -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
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@ -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
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@ -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
Unescape 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
Unescape 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
Unescape 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
Unescape 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
Unescape 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
Unescape 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
Unescape 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
Unescape 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
Unescape 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
Unescape 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
Unescape 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
Unescape 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
Unescape 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
Unescape 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
}

1138
pow/ethash.go
View File

File diff suppressed because it is too large Load Diff

1071
pow/ethash_algo.go
View File

File diff suppressed because it is too large Load Diff

8
pow/ethash_test.go → pow/ethash_algo_test.go
Unescape 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))

42
pow/pow.go
Unescape View File

@ -16,9 +16,43 @@
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
}
type PoW interface {
Search(block Block, stop <-chan struct{}, index int) (uint64, []byte)
Verify(block Block) bool
GetHashrate() int64
Turbo(bool)
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
Unescape 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
}

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