cerc-io/plugeth-statediff
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store code updates

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This commit is contained in:
Roy Crihfield 2023-06-21 01:19:58 +08:00
parent ddf9aff945
commit 0fabb5a35d
2 changed files with 50 additions and 45 deletions
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77
blockchain.go
View File

@ -21,7 +21,6 @@ import (
)
type BlockChain interface {
// SubscribeChainEvent(ch chan<- plugeth.ChainEvent) plugeth.Subscription
SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription
CurrentBlock() *types.Header
GetBlockByHash(hash common.Hash) *types.Block
@ -33,26 +32,30 @@ type BlockChain interface {
StateCache() adapt.StateView
}
// Adapts the plugeth Backend to the blockChain interface
type backendBlockChain struct {
restricted.Backend
ctx context.Context
// code mappings exposed in StateCache, safe for concurrent access
code map[common.Hash][]byte
// CodeStore stores contract code hashes to data in a synchronized map
type CodeStore struct {
code map[plugeth.Hash][]byte
codeMtx sync.RWMutex
}
var _ BlockChain = (*backendBlockChain)(nil)
// pluginBlockChain adapts the plugeth Backend to the blockChain interface
type pluginBlockChain struct {
restricted.Backend
ctx context.Context
code *CodeStore
}
func NewPluginBlockChain(backend restricted.Backend) BlockChain {
return &backendBlockChain{
var _ BlockChain = (*pluginBlockChain)(nil)
func NewPluginBlockChain(backend restricted.Backend, code *CodeStore) BlockChain {
return &pluginBlockChain{
Backend: backend,
ctx: context.Background(),
code: code,
}
}
func (b backendBlockChain) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription {
func (b *pluginBlockChain) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription {
bufferChan := make(chan plugeth.ChainEvent, chainEventChanSize)
sub := b.Backend.SubscribeChainEvent(bufferChan)
go func() {
@ -69,12 +72,12 @@ func (b backendBlockChain) SubscribeChainEvent(ch chan<- core.ChainEvent) event.
return sub
}
func (b *backendBlockChain) CurrentBlock() *types.Header {
func (b *pluginBlockChain) CurrentBlock() *types.Header {
buf := b.Backend.CurrentBlock()
return utils.MustDecode[types.Header](buf)
}
func (b *backendBlockChain) GetBlockByHash(hash common.Hash) *types.Block {
func (b *pluginBlockChain) GetBlockByHash(hash common.Hash) *types.Block {
buf, err := b.Backend.BlockByHash(b.ctx, plugeth.Hash(hash))
if err != nil {
panic(err)
@ -82,7 +85,7 @@ func (b *backendBlockChain) GetBlockByHash(hash common.Hash) *types.Block {
return utils.MustDecode[types.Block](buf)
}
func (b *backendBlockChain) GetBlockByNumber(number uint64) *types.Block {
func (b *pluginBlockChain) GetBlockByNumber(number uint64) *types.Block {
buf, err := b.Backend.BlockByNumber(b.ctx, int64(number))
if err != nil {
panic(err)
@ -90,7 +93,7 @@ func (b *backendBlockChain) GetBlockByNumber(number uint64) *types.Block {
return utils.MustDecode[types.Block](buf)
}
func (b *backendBlockChain) GetReceiptsByHash(hash common.Hash) types.Receipts {
func (b *pluginBlockChain) GetReceiptsByHash(hash common.Hash) types.Receipts {
buf, err := b.Backend.GetReceipts(b.ctx, plugeth.Hash(hash))
if err != nil {
panic(err)
@ -103,37 +106,21 @@ func (b *backendBlockChain) GetReceiptsByHash(hash common.Hash) types.Receipts {
return receipts
}
func (b *backendBlockChain) GetTd(hash common.Hash, number uint64) *big.Int {
func (b *pluginBlockChain) GetTd(hash common.Hash, number uint64) *big.Int {
return b.Backend.GetTd(b.ctx, plugeth.Hash(hash))
}
func (b *backendBlockChain) StateCache() adapt.StateView {
func (b *pluginBlockChain) StateCache() adapt.StateView {
return &pluginStateView{backend: b}
}
func (b *backendBlockChain) ChainConfig() *params.ChainConfig {
func (b *pluginBlockChain) ChainConfig() *params.ChainConfig {
return adapt.ChainConfig(b.Backend.ChainConfig())
}
func (b *backendBlockChain) getCode(hash common.Hash) ([]byte, error) {
b.codeMtx.RLock()
defer b.codeMtx.RUnlock()
code, has := b.code[hash]
if !has {
return nil, errors.New("code not found")
}
return copybytes(code), nil
}
func (b *backendBlockChain) setCode(hash common.Hash, code []byte) {
b.codeMtx.Lock()
defer b.codeMtx.Unlock()
b.code[hash] = code
}
// exposes a StateView from a combination of plugeth's core Backend and cached contract code
type pluginStateView struct {
backend *backendBlockChain
backend *pluginBlockChain
}
func (p *pluginStateView) OpenTrie(root common.Hash) (adapt.StateTrie, error) {
@ -145,7 +132,21 @@ func (p *pluginStateView) OpenTrie(root common.Hash) (adapt.StateTrie, error) {
}
func (p *pluginStateView) ContractCode(hash common.Hash) ([]byte, error) {
return p.backend.getCode(hash)
return p.backend.code.Get(plugeth.Hash(hash))
}
func copybytes(b []byte) []byte { return []byte(string(b)) }
func (b *CodeStore) Get(hash plugeth.Hash) ([]byte, error) {
b.codeMtx.RLock()
defer b.codeMtx.RUnlock()
code, has := b.code[hash]
if !has {
return nil, errors.New("code not found")
}
return []byte(string(code)), nil
}
func (b *CodeStore) Set(hash plugeth.Hash, code []byte) {
b.codeMtx.Lock()
defer b.codeMtx.Unlock()
b.code[hash] = code
}

18
main/main.go
View File

@ -20,6 +20,7 @@ var (
gethContext core.Context
service *statediff.Service
blockchain statediff.BlockChain
codeStore statediff.CodeStore
)
func Initialize(ctx core.Context, pl core.PluginLoader, logger core.Logger) {
@ -47,12 +48,12 @@ func InitializeNode(stack core.Node, b core.Backend) {
return
}
serviceConfig := GetConfig()
chain := statediff.NewPluginBlockChain(backend)
blockchain = statediff.NewPluginBlockChain(backend, &codeStore)
var indexer interfaces.StateDiffIndexer
if serviceConfig.IndexerConfig != nil {
info := node.Info{
GenesisBlock: chain.GetBlockByNumber(0).Hash().String(),
GenesisBlock: blockchain.GetBlockByNumber(0).Hash().String(),
NetworkID: strconv.FormatUint(networkid, 10),
ChainID: backend.ChainConfig().ChainID.Uint64(),
ID: serviceConfig.ID,
@ -65,7 +66,7 @@ func InitializeNode(stack core.Node, b core.Backend) {
log.Error("failed to construct indexer", "error", err)
}
}
service, err := statediff.NewService(serviceConfig, chain, backend, indexer)
service, err := statediff.NewService(serviceConfig, blockchain, backend, indexer)
if err != nil {
log.Error("failed to construct service", "error", err)
}
@ -88,16 +89,19 @@ func GetAPIs(stack core.Node, backend core.Backend) []core.API {
// StateUpdate gives us updates about state changes made in each block.
// We extract contract code here, since it's not exposed by plugeth's state interfaces.
func StateUpdate(blockRoot core.Hash,
func StateUpdate(
blockRoot core.Hash,
parentRoot core.Hash,
destructs map[core.Hash]struct{},
accounts map[core.Hash][]byte,
storage map[core.Hash]map[core.Hash][]byte,
codeUpdates map[core.Hash][]byte) {
if service == nil {
log.Error("StateUpdate called before InitializeNode", "root", blockRoot)
if blockchain == nil {
log.Warn("StateUpdate called before InitializeNode", "root", blockRoot)
return
}
// blockchain.
for hash, code := range codeUpdates {
codeStore.Set(hash, code)
}
}