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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
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12
les/backend.go
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@ -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