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core, consensus: pluggable consensus engines (#3817)

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This commit adds pluggable consensus engines to go-ethereum. In short, it
introduces a generic consensus interface, and refactors the entire codebase to
use this interface.
This commit is contained in:
Péter Szilágyi
2017-04-05 01:16:29 +03:00
committed by Felix Lange
parent e50a5b7771
commit 09777952ee
61 changed files with 1681 additions and 1426 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
les/backend.go
View File

@ -25,6 +25,7 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/compiler"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/eth"
@ -39,7 +40,6 @@ import (
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
rpc "github.com/ethereum/go-ethereum/rpc"
)
@ -59,7 +59,7 @@ type LightEthereum struct {
ApiBackend *LesApiBackend
eventMux *event.TypeMux
pow pow.PoW
engine consensus.Engine
accountManager *accounts.Manager
solcPath string
solc *compiler.Solidity
@ -88,14 +88,12 @@ func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
chainConfig: chainConfig,
eventMux: ctx.EventMux,
accountManager: ctx.AccountManager,
pow: eth.CreatePoW(ctx, config),
engine: eth.CreateConsensusEngine(ctx, config, chainConfig, chainDb),
shutdownChan: make(chan bool),
netVersionId: config.NetworkId,
solcPath: config.SolcPath,
}
eth.blockchain, err = light.NewLightChain(odr, eth.chainConfig, eth.pow, eth.eventMux)
if err != nil {
if eth.blockchain, err = light.NewLightChain(odr, eth.chainConfig, eth.engine, eth.eventMux); err != nil {
return nil, err
}
// Rewind the chain in case of an incompatible config upgrade.
@ -106,7 +104,7 @@ func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
}
eth.txPool = light.NewTxPool(eth.chainConfig, eth.eventMux, eth.blockchain, eth.relay)
if eth.protocolManager, err = NewProtocolManager(eth.chainConfig, config.LightMode, config.NetworkId, eth.eventMux, eth.pow, eth.blockchain, nil, chainDb, odr, relay); err != nil {
if eth.protocolManager, err = NewProtocolManager(eth.chainConfig, config.LightMode, config.NetworkId, eth.eventMux, eth.engine, eth.blockchain, nil, chainDb, odr, relay); err != nil {
return nil, err
}
relay.ps = eth.protocolManager.peers

4
les/handler.go
View File

@ -27,6 +27,7 @@ import (
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
@ -39,7 +40,6 @@ import (
"github.com/ethereum/go-ethereum/p2p/discover"
"github.com/ethereum/go-ethereum/p2p/discv5"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/trie"
)
@ -128,7 +128,7 @@ type ProtocolManager struct {
// NewProtocolManager returns a new ethereum sub protocol manager. The Ethereum sub protocol manages peers capable
// with the ethereum network.
func NewProtocolManager(chainConfig *params.ChainConfig, lightSync bool, networkId int, mux *event.TypeMux, pow pow.PoW, blockchain BlockChain, txpool txPool, chainDb ethdb.Database, odr *LesOdr, txrelay *LesTxRelay) (*ProtocolManager, error) {
func NewProtocolManager(chainConfig *params.ChainConfig, lightSync bool, networkId int, mux *event.TypeMux, engine consensus.Engine, blockchain BlockChain, txpool txPool, chainDb ethdb.Database, odr *LesOdr, txrelay *LesTxRelay) (*ProtocolManager, error) {
// Create the protocol manager with the base fields
manager := &ProtocolManager{
lightSync: lightSync,

16
les/helper_test.go
View File

@ -28,6 +28,7 @@ import (
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
@ -39,7 +40,6 @@ 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 (
@ -134,10 +134,10 @@ func testRCL() RequestCostList {
// channels for different events.
func newTestProtocolManager(lightSync bool, blocks int, generator func(int, *core.BlockGen)) (*ProtocolManager, ethdb.Database, *LesOdr, error) {
var (
evmux = new(event.TypeMux)
pow = new(pow.FakePow)
db, _ = ethdb.NewMemDatabase()
gspec = core.Genesis{
evmux = new(event.TypeMux)
engine = ethash.NewFaker()
db, _ = ethdb.NewMemDatabase()
gspec = core.Genesis{
Config: params.TestChainConfig,
Alloc: core.GenesisAlloc{testBankAddress: {Balance: testBankFunds}},
}
@ -148,9 +148,9 @@ func newTestProtocolManager(lightSync bool, blocks int, generator func(int, *cor
if lightSync {
odr = NewLesOdr(db)
chain, _ = light.NewLightChain(odr, gspec.Config, pow, evmux)
chain, _ = light.NewLightChain(odr, gspec.Config, engine, evmux)
} else {
blockchain, _ := core.NewBlockChain(db, gspec.Config, pow, evmux, vm.Config{})
blockchain, _ := core.NewBlockChain(db, gspec.Config, engine, evmux, vm.Config{})
gchain, _ := core.GenerateChain(gspec.Config, genesis, db, blocks, generator)
if _, err := blockchain.InsertChain(gchain); err != nil {
panic(err)
@ -158,7 +158,7 @@ func newTestProtocolManager(lightSync bool, blocks int, generator func(int, *cor
chain = blockchain
}
pm, err := NewProtocolManager(gspec.Config, lightSync, NetworkId, evmux, pow, chain, nil, db, odr, nil)
pm, err := NewProtocolManager(gspec.Config, lightSync, NetworkId, evmux, engine, chain, nil, db, odr, nil)
if err != nil {
return nil, nil, nil, err
}

2
les/server.go
View File

@ -45,7 +45,7 @@ type LesServer struct {
}
func NewLesServer(eth *eth.Ethereum, config *eth.Config) (*LesServer, error) {
pm, err := NewProtocolManager(eth.BlockChain().Config(), false, config.NetworkId, eth.EventMux(), eth.Pow(), eth.BlockChain(), eth.TxPool(), eth.ChainDb(), nil, nil)
pm, err := NewProtocolManager(eth.BlockChain().Config(), false, config.NetworkId, eth.EventMux(), eth.Engine(), eth.BlockChain(), eth.TxPool(), eth.ChainDb(), nil, nil)
if err != nil {
return nil, err
}