forked from cerc-io/plugeth
Fix initialize function of plugin loader, update blockupdates plugin
This commit is contained in:
Austin Roberts
parent
16cc5314cf
commit
328756dc00
@ -1,273 +0,0 @@
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package main
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import (
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"encoding/json"
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lru "github.com/hashicorp/golang-lru"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/events"
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"github.com/ethereum/go-ethereum/plugins"
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"github.com/ethereum/go-ethereum/node"
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"github.com/ethereum/go-ethereum/plugins/interfaces"
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"github.com/ethereum/go-ethereum/cmd/utils"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/ethereum/go-ethereum/rpc"
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"github.com/ethereum/go-ethereum/internal/ethapi"
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"gopkg.in/urfave/cli.v1"
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"io"
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)
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var (
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pl *plugins.PluginLoader
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backend interfaces.Backend
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lastBlock common.Hash
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cache *lru.Cache
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blockEvents events.Feed
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)
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type stateUpdate struct {
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Destructs map[common.Hash]struct{}
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Accounts map[common.Hash][]byte
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Storage map[common.Hash]map[common.Hash][]byte
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}
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type kvpair struct {
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Key common.Hash
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Value []byte
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}
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type storage struct {
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Account common.Hash
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Data []kvpair
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}
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type storedStateUpdate struct {
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Destructs []common.Hash
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Accounts []kvpair
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Storage []storage
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}
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func (su *stateUpdate) MarshalJSON() ([]byte, error) {
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result := make(map[string]interface{}, 0, len(su.Destructs))
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result["destructs"] = []common.Hash{}
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for k := range su.Destructs {
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result["destructs"] = append(result["destructs"], k)
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}
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accounts = make(map[common.Hash]hexutil.Bytes)
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for k, v := range su.Accounts {
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result["accounts"][k] = hexutil.Bytes(v)
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}
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result["accounts"] = accounts
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storage = make(map[common.Hash]map[common.Hash]hexutil.Bytes)
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for m, s := range su.Storage {
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storage[m] = make(map[common.Hash]hexutil.Bytes)
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for k, v := range s {
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storage[m][s] = hexutil.Bytes(v)
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}
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}
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result["storage"] = storage
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return json.Marshal(result)
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}
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func (su *stateUpdate) EncodeRLP(w io.Writer) error {
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destructs = make([]common.Hash, 0, len(su.Destructs))
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for k := range su.Destructs {
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destructs = append(destructs, k)
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}
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accounts := make([]kvpair, 0, len(accounts))
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for k, v := range su.Accounts {
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accounts = append(accounts, kvpair{k, v})
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}
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s := make([]storage, 0, len(storage))
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for a, m := range su.Storage {
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accountStorage = storage{a, make([]kvpair, 0, len(m))}
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for k, v := range m {
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accountStorage.Data = append(accountStorage.Data, []kvpair{k, v})
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}
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s = append(s, accountStorage)
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}
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return rlp.Encode(w, storedStateUpdate{destructs, accounts, s})
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}
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func (su *stateUpdate) DecodeRLP(s *rlp.Stream) error {
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ssu := storedStateUpdate{}
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if err := s.Decode(&ssu); err != nil { return err }
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su.Destructs = make(map[common.Hash]struct{})
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for _, s := range ssu.Destructs {
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su.Destructs[s] = struct{}{}
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}
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su.Accounts = make(map[common.Hash][]byte)
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for _, kv := range ssu.Accounts {
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su.Accounts[kv.Key] = kv.Value
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}
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su.Storage = make(map[common.Hash]map[common.Hash][]byte)
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for _, s := range ssu.Storage {
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su.Storage[s.Account] = make(map[common.Hash][]byte)
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for _, kv := range s.Data {
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su.Storage[s.Account][kv.Key] = kv.Value
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}
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}
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return nil
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}
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func Initialize(ctx *cli.Context, loader *PluginLoader) {
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pl = loader
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cache, _ = lru.New(128) // TODO: Make size configurable
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if !ctx.GlobalBool(utils.SnapshotFlag.Name) {
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log.Warn("Snapshots are required for StateUpdate plugins, but are currently disabled. State Updates will be unavailable")
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}
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}
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// TODO:
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// x Record StateUpdates in the database as they are written.
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// x Keep an LRU cache of the most recent state updates.
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// x Prune the StateUpdates in the database as corresponding blocks move to the freezer.
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// * Add an RPC endpoint for getting the StateUpdates of a block
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// * Invoke other plugins with each block and its respective StateUpdates.
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func InitializeNode(stack *node.Node, b interfaces.Backend) {
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backend = b
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}
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func StateUpdate(blockRoot common.Hash, parentRoot common.Hash, destructs map[common.Hash]struct{}, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) {
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su := stateUpdate{
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destructs: destructs,
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accounts: accounts,
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storage: storage,
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}
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cache.Add(blockRoot, su)
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data, _ := rlp.EncodeToBytes(su)
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backend.ChainDb().Put(append([]byte("su"), blockRoot...), data)
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}
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func AppendAncient(number uint64, hash, header, body, receipts, td []byte) {
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header := new(types.Header)
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if err := rlp.Decode(bytes.NewReader(data), header); err != nil {
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log.Warn("Could not decode ancient header", "block", number)
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return
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}
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backend.Chaindb().Delete(append([]byte("su"), header.Root()...))
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}
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func NewHead(block *types.Block, hash common.Hash, logs []*types.Log) {
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if pl == nil {
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log.Warn("Attempting to emit NewHead, but default PluginLoader has not been initialized")
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return
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}
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result, err := blockUpdates(block)
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if err != nil {
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log.Error("Could not serialize block", "err", err, "hash", block.Hash())
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return
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}
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blockEvents.Send(result)
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receipts, err = backend.GetReceipts(ctx, block.Hash()) (types.Receipts, error)
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var su *stateUpdate
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if v, ok := cache.Get(block.Root()); ok {
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su = v.(stateUpdate)
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}
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data, err := backend.ChainDb().Get(append([]byte("su"), block.Root()...))
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if err != nil {
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log.Error("StateUpdate unavailable for block", "hash", block.Hash())
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return
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}
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su = &stateUpdate{}
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if err := rlp.DecodeBytes(data, su); err != nil {
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log.Error("StateUpdate unavailable for block", "hash", block.Hash())
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return
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}
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//TODO: Get plugins to invoke, invoke them
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return result
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}
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type BlockUpdates struct{
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backend plugin.Backend
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}
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func blockUpdates(block *types.Block) (map[string]interface{}, error) {
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result := ethapi.RPCMarshalBlock(block, true, true)
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var (
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err error
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)
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result["receipts"], err = backend.GetReceipts(ctx, block.Hash()) (types.Receipts, error)
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if err != nil { return nil, err }
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if v, ok := cache.Get(block.Root); ok {
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result["stateUpdates"] = v
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return result
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}
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data, err := backend.ChainDb().Get(append([]byte("su"), block.Root()...))
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if err != nil { return nil, fmt.Errorf("State Updates unavailable for block %#x", block.Hash())}
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su := &stateUpdate{}
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if err := rlp.DecodeBytes(data, su); err != nil { return nil, fmt.Errorf("State updates unavailable for block %#x", block.Hash()) }
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result["stateUpdates"] = su
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return result
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}
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func (b *BlockUpdates) BlockUpdatesByNumber(ctx context.Context, number rpc.BlockNumber) (map[string]interface{}, error) {
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block := b.backend.BlockByNumber(ctx, number)
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return blockUpdates(block)
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}
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func (b *BlockUpdates) BlockUpdatesByHash(ctx context.Context, hash common.Hash) (map[string]interface{}, error) {
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block := b.backend.BlockByHash(ctx, hash)
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return blockUpdates(block)
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}
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func (b *BlockUpdates) BlockUpdates(ctx context.Context) (*rpc.Subscription, error) {
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notifier, supported := rpc.NotifierFromContext(ctx)
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if !supported {
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return &rpc.Subscription{}, rpc.ErrNotificationsUnsupported
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}
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var (
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rpcSub = notifier.CreateSubscription()
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blockDataChan = make(chan map[string]interface{}, 1000)
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)
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sub := blockEvents.Send(blockDataChan)
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if err != nil {
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return nil, err
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}
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go func() {
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for {
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select {
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case hash := <-hashCh:
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b.blockUpdates()
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notifier.Notify(rpcSub.ID,)
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case <-rpcSub.Err(): // client send an unsubscribe request
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sub.Unsubscribe()
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return
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case <-notifier.Closed(): // connection dropped
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sub.Unsubscribe()
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return
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}
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}
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}()
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return rpcSub, nil
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}
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func GetAPIs(stack *node.Node, backend plugins.Backend) []rpc.API {
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return []rpc.API{
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{
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Namespace: "cardinal",
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Version: "1.0",
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Service: &BlockUpdates{backend},
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Public: true,
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},
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}
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}
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279
plugins/packages/blockupdates/main.go
Normal file
279
plugins/packages/blockupdates/main.go
Normal file
@ -0,0 +1,279 @@
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package main
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import (
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"bytes"
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"fmt"
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"context"
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"encoding/json"
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lru "github.com/hashicorp/golang-lru"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/plugins"
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"github.com/ethereum/go-ethereum/node"
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"github.com/ethereum/go-ethereum/plugins/interfaces"
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"github.com/ethereum/go-ethereum/cmd/utils"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/ethereum/go-ethereum/rpc"
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"github.com/ethereum/go-ethereum/internal/ethapi"
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"gopkg.in/urfave/cli.v1"
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"io"
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)
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var (
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pl *plugins.PluginLoader
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backend interfaces.Backend
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lastBlock common.Hash
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cache *lru.Cache
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blockEvents event.Feed
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)
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type stateUpdate struct {
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Destructs map[common.Hash]struct{}
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Accounts map[common.Hash][]byte
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Storage map[common.Hash]map[common.Hash][]byte
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}
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type kvpair struct {
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Key common.Hash
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Value []byte
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}
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type storage struct {
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Account common.Hash
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Data []kvpair
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}
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type storedStateUpdate struct {
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Destructs []common.Hash
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Accounts []kvpair
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Storage []storage
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}
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func (su *stateUpdate) MarshalJSON() ([]byte, error) {
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result := make(map[string]interface{})
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destructs := make([]common.Hash, 0, len(su.Destructs))
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for k := range su.Destructs {
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destructs = append(destructs, k)
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}
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result["destructs"] = destructs
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accounts := make(map[common.Hash]hexutil.Bytes)
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for k, v := range su.Accounts {
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accounts[k] = hexutil.Bytes(v)
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}
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result["accounts"] = accounts
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storage := make(map[common.Hash]map[common.Hash]hexutil.Bytes)
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for m, s := range su.Storage {
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storage[m] = make(map[common.Hash]hexutil.Bytes)
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for k, v := range s {
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storage[m][k] = hexutil.Bytes(v)
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}
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}
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result["storage"] = storage
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return json.Marshal(result)
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}
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func (su *stateUpdate) EncodeRLP(w io.Writer) error {
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destructs := make([]common.Hash, 0, len(su.Destructs))
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for k := range su.Destructs {
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destructs = append(destructs, k)
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}
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accounts := make([]kvpair, 0, len(su.Accounts))
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for k, v := range su.Accounts {
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accounts = append(accounts, kvpair{k, v})
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}
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s := make([]storage, 0, len(su.Storage))
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for a, m := range su.Storage {
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accountStorage := storage{a, make([]kvpair, 0, len(m))}
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for k, v := range m {
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accountStorage.Data = append(accountStorage.Data, kvpair{k, v})
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}
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s = append(s, accountStorage)
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}
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return rlp.Encode(w, storedStateUpdate{destructs, accounts, s})
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}
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func (su *stateUpdate) DecodeRLP(s *rlp.Stream) error {
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ssu := storedStateUpdate{}
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if err := s.Decode(&ssu); err != nil { return err }
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su.Destructs = make(map[common.Hash]struct{})
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for _, s := range ssu.Destructs {
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su.Destructs[s] = struct{}{}
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}
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su.Accounts = make(map[common.Hash][]byte)
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for _, kv := range ssu.Accounts {
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su.Accounts[kv.Key] = kv.Value
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}
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su.Storage = make(map[common.Hash]map[common.Hash][]byte)
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for _, s := range ssu.Storage {
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su.Storage[s.Account] = make(map[common.Hash][]byte)
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for _, kv := range s.Data {
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su.Storage[s.Account][kv.Key] = kv.Value
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}
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}
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return nil
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}
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func Initialize(ctx *cli.Context, loader *plugins.PluginLoader) {
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pl = loader
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cache, _ = lru.New(128) // TODO: Make size configurable
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if !ctx.GlobalBool(utils.SnapshotFlag.Name) {
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log.Warn("Snapshots are required for StateUpdate plugins, but are currently disabled. State Updates will be unavailable")
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}
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log.Info("Loaded block updater plugin")
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}
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// TODO:
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// x Record StateUpdates in the database as they are written.
|
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// x Keep an LRU cache of the most recent state updates.
|
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// x Prune the StateUpdates in the database as corresponding blocks move to the freezer.
|
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// * Add an RPC endpoint for getting the StateUpdates of a block
|
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// * Invoke other plugins with each block and its respective StateUpdates.
|
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|
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func InitializeNode(stack *node.Node, b interfaces.Backend) {
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backend = b
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}
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func StateUpdate(blockRoot common.Hash, parentRoot common.Hash, destructs map[common.Hash]struct{}, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) {
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su := &stateUpdate{
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Destructs: destructs,
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Accounts: accounts,
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Storage: storage,
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}
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cache.Add(blockRoot, su)
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data, _ := rlp.EncodeToBytes(su)
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backend.ChainDb().Put(append([]byte("su"), blockRoot.Bytes()...), data)
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}
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func AppendAncient(number uint64, hash, headerBytes, body, receipts, td []byte) {
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header := new(types.Header)
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if err := rlp.Decode(bytes.NewReader(headerBytes), header); err != nil {
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log.Warn("Could not decode ancient header", "block", number)
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return
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}
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backend.ChainDb().Delete(append([]byte("su"), header.Root.Bytes()...))
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}
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func NewHead(block *types.Block, hash common.Hash, logs []*types.Log) {
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if pl == nil {
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log.Warn("Attempting to emit NewHead, but default PluginLoader has not been initialized")
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return
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}
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result, err := blockUpdates(context.Background(), block)
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if err != nil {
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log.Error("Could not serialize block", "err", err, "hash", block.Hash())
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return
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}
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blockEvents.Send(result)
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receipts, err := backend.GetReceipts(context.Background(), block.Hash())
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var su *stateUpdate
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if v, ok := cache.Get(block.Root()); ok {
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su = v.(*stateUpdate)
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}
|
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data, err := backend.ChainDb().Get(append([]byte("su"), block.Root().Bytes()...))
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if err != nil {
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log.Error("StateUpdate unavailable for block", "hash", block.Hash())
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return
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}
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su = &stateUpdate{}
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if err := rlp.DecodeBytes(data, su); err != nil {
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log.Error("StateUpdate unavailable for block", "hash", block.Hash())
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return
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}
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fnList := pl.Lookup("BlockUpdates", func(item interface{}) bool {
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_, ok := item.(func(*types.Block, []*types.Log, types.Receipts, map[common.Hash]struct{}, map[common.Hash][]byte, map[common.Hash]map[common.Hash][]byte))
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return ok
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})
|
||||
for _, fni := range fnList {
|
||||
if fn, ok := fni.(func(*types.Block, []*types.Log, types.Receipts, map[common.Hash]struct{}, map[common.Hash][]byte, map[common.Hash]map[common.Hash][]byte)); ok {
|
||||
fn(block, logs, receipts, su.Destructs, su.Accounts, su.Storage)
|
||||
}
|
||||
}
|
||||
//TODO: Get plugins to invoke, invoke them
|
||||
}
|
||||
|
||||
|
||||
|
||||
type BlockUpdates struct{
|
||||
backend interfaces.Backend
|
||||
}
|
||||
|
||||
func blockUpdates(ctx context.Context, block *types.Block) (map[string]interface{}, error) {
|
||||
result, err := ethapi.RPCMarshalBlock(block, true, true)
|
||||
if err != nil { return nil, err }
|
||||
result["receipts"], err = backend.GetReceipts(ctx, block.Hash())
|
||||
if err != nil { return nil, err }
|
||||
if v, ok := cache.Get(block.Root()); ok {
|
||||
result["stateUpdates"] = v
|
||||
return result, nil
|
||||
}
|
||||
data, err := backend.ChainDb().Get(append([]byte("su"), block.Root().Bytes()...))
|
||||
if err != nil { return nil, fmt.Errorf("State Updates unavailable for block %#x", block.Hash())}
|
||||
su := &stateUpdate{}
|
||||
if err := rlp.DecodeBytes(data, su); err != nil { return nil, fmt.Errorf("State updates unavailable for block %#x", block.Hash()) }
|
||||
result["stateUpdates"] = su
|
||||
return result, nil
|
||||
}
|
||||
|
||||
func (b *BlockUpdates) BlockUpdatesByNumber(ctx context.Context, number rpc.BlockNumber) (map[string]interface{}, error) {
|
||||
block, err := b.backend.BlockByNumber(ctx, number)
|
||||
if err != nil { return nil, err }
|
||||
return blockUpdates(ctx, block)
|
||||
}
|
||||
|
||||
func (b *BlockUpdates) BlockUpdatesByHash(ctx context.Context, hash common.Hash) (map[string]interface{}, error) {
|
||||
block, err := b.backend.BlockByHash(ctx, hash)
|
||||
if err != nil { return nil, err }
|
||||
return blockUpdates(ctx, block)
|
||||
}
|
||||
|
||||
func (b *BlockUpdates) BlockUpdates(ctx context.Context) (*rpc.Subscription, error) {
|
||||
notifier, supported := rpc.NotifierFromContext(ctx)
|
||||
if !supported {
|
||||
return &rpc.Subscription{}, rpc.ErrNotificationsUnsupported
|
||||
}
|
||||
|
||||
var (
|
||||
rpcSub = notifier.CreateSubscription()
|
||||
blockDataChan = make(chan map[string]interface{}, 1000)
|
||||
)
|
||||
|
||||
sub := blockEvents.Subscribe(blockDataChan)
|
||||
go func() {
|
||||
|
||||
for {
|
||||
select {
|
||||
case b := <-blockDataChan:
|
||||
notifier.Notify(rpcSub.ID, b)
|
||||
case <-rpcSub.Err(): // client send an unsubscribe request
|
||||
sub.Unsubscribe()
|
||||
return
|
||||
case <-notifier.Closed(): // connection dropped
|
||||
sub.Unsubscribe()
|
||||
return
|
||||
}
|
||||
}
|
||||
}()
|
||||
|
||||
return rpcSub, nil
|
||||
}
|
||||
|
||||
|
||||
|
||||
func GetAPIs(stack *node.Node, backend interfaces.Backend) []rpc.API {
|
||||
return []rpc.API{
|
||||
{
|
||||
Namespace: "cardinal",
|
||||
Version: "1.0",
|
||||
Service: &BlockUpdates{backend},
|
||||
Public: true,
|
||||
},
|
||||
}
|
||||
}
|
||||
@ -113,7 +113,7 @@ func Initialize(target string, ctx *cli.Context) (err error) {
|
||||
|
||||
func (pl *PluginLoader) Initialize(ctx *cli.Context) {
|
||||
fns := pl.Lookup("Initialize", func(i interface{}) bool {
|
||||
_, ok := i.(func(*cli.Context, *PluginLoader) error)
|
||||
_, ok := i.(func(*cli.Context, *PluginLoader))
|
||||
return ok
|
||||
})
|
||||
for _, fni := range fns {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user