116 lines
3.4 KiB
Go
116 lines
3.4 KiB
Go
package main
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import (
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"errors"
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"math/big"
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"github.com/openrelayxyz/plugeth-utils/core"
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"github.com/openrelayxyz/plugeth-utils/restricted"
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"github.com/openrelayxyz/plugeth-utils/restricted/consensus"
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"github.com/openrelayxyz/plugeth-utils/restricted/params"
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"github.com/openrelayxyz/plugeth-utils/restricted/types"
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)
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var (
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pl core.PluginLoader
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backend restricted.Backend
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log core.Logger
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events core.Feed
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createEngineCalled bool
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)
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var httpApiFlagName = "http.api"
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func Initialize(ctx core.Context, loader core.PluginLoader, logger core.Logger) {
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pl = loader
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events = pl.GetFeed()
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log = logger
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v := ctx.String(httpApiFlagName)
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if v != "" {
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ctx.Set(httpApiFlagName, v+",plugeth")
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} else {
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ctx.Set(httpApiFlagName, "eth,net,web3,plugeth")
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log.Info("Loaded consensus engine plugin")
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}
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}
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type engine struct {
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}
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func (e *engine) Author(header *types.Header) (core.Address, error) {
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return header.Coinbase, nil
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}
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func (e *engine) VerifyHeader(chain consensus.ChainHeaderReader, header *types.Header, seal bool) error {
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return nil
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}
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func (e *engine) VerifyHeaders(chain consensus.ChainHeaderReader, headers []*types.Header, seals []bool) (chan<- struct{}, <-chan error) {
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quit := make(chan struct{})
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err := make(chan error)
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go func () {
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for i, h := range headers {
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select {
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case <-quit:
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return
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case err<- e.VerifyHeader(chain, h, seals[i]):
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}
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}
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} ()
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return quit, err
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}
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func (e *engine) VerifyUncles(chain consensus.ChainReader, block *types.Block) error {
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return nil
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}
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func (e *engine) Prepare(chain consensus.ChainHeaderReader, header *types.Header) error {
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if header.BaseFee == nil {
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header.BaseFee = new(big.Int)
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}
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header.Difficulty = new(big.Int).SetUint64(123456789)
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header.UncleHash = core.HexToHash("1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347")
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return nil
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}
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func (e *engine) Finalize(chain consensus.ChainHeaderReader, header *types.Header, state core.RWStateDB, txs []*types.Transaction,uncles []*types.Header, withdrawals []*types.Withdrawal) {
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}
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func (e *engine) FinalizeAndAssemble(chain consensus.ChainHeaderReader, header *types.Header, state core.RWStateDB, txs []*types.Transaction, uncles []*types.Header, receipts []*types.Receipt, withdrawals []*types.Withdrawal) (*types.Block, error) {
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if header.BaseFee == nil {
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header.BaseFee = new(big.Int)
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}
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header.Root = state.IntermediateRoot(false)
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//hasher := hasher.NewStackTrie(nil)
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hasher := types.TrieHasher(nil)
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block := types.NewBlockWithWithdrawals(header, txs, uncles, receipts, withdrawals, hasher)
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return block, nil
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}
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func (e *engine) Seal(chain consensus.ChainHeaderReader, block *types.Block, results chan<- *types.Block, stop <-chan struct{}) error {
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if len(block.Transactions()) == 0 {
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return errors.New("sealing paused while waiting for transactions")
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}
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go func () {
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results <- block
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close(results)
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} ()
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// TO DO: the stop channel will need to be addressed in a non test case scenerio
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return nil
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}
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func (e *engine) SealHash(header *types.Header) core.Hash {
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return header.Hash()
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}
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func (e *engine) CalcDifficulty(chain consensus.ChainHeaderReader, time uint64, parent *types.Header) *big.Int {
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return new(big.Int).SetUint64(uint64(123456789))
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}
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func (e *engine) APIs(chain consensus.ChainHeaderReader) []core.API {
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return []core.API{}
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}
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func (e *engine) Close() error {
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return nil
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}
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func CreateEngine(chainConfig *params.ChainConfig, db restricted.Database) consensus.Engine {
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createEngineCalled = true
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return &engine{}
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}
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