70 lines
2.8 KiB
Go
70 lines
2.8 KiB
Go
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// Copyright 2024 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package main
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import (
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"context"
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"time"
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"github.com/ethereum/go-ethereum/beacon/engine"
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"github.com/ethereum/go-ethereum/beacon/types"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/rpc"
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)
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func updateEngineApi(client *rpc.Client, headCh chan types.ChainHeadEvent) {
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for event := range headCh {
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if client == nil { // dry run, no engine API specified
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log.Info("New execution block retrieved", "block number", event.HeadBlock.Number, "block hash", event.HeadBlock.BlockHash, "finalized block hash", event.Finalized)
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} else {
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if status, err := callNewPayloadV2(client, event.HeadBlock); err == nil {
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log.Info("Successful NewPayload", "block number", event.HeadBlock.Number, "block hash", event.HeadBlock.BlockHash, "status", status)
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} else {
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log.Error("Failed NewPayload", "block number", event.HeadBlock.Number, "block hash", event.HeadBlock.BlockHash, "error", err)
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}
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if status, err := callForkchoiceUpdatedV1(client, event.HeadBlock.BlockHash, event.Finalized); err == nil {
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log.Info("Successful ForkchoiceUpdated", "head", event.HeadBlock.BlockHash, "status", status)
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} else {
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log.Error("Failed ForkchoiceUpdated", "head", event.HeadBlock.BlockHash, "error", err)
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}
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}
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}
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}
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func callNewPayloadV2(client *rpc.Client, execData *engine.ExecutableData) (string, error) {
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var resp engine.PayloadStatusV1
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ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
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err := client.CallContext(ctx, &resp, "engine_newPayloadV2", execData)
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cancel()
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return resp.Status, err
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}
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func callForkchoiceUpdatedV1(client *rpc.Client, headHash, finalizedHash common.Hash) (string, error) {
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var resp engine.ForkChoiceResponse
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update := engine.ForkchoiceStateV1{
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HeadBlockHash: headHash,
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SafeBlockHash: finalizedHash,
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FinalizedBlockHash: finalizedHash,
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}
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ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
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err := client.CallContext(ctx, &resp, "engine_forkchoiceUpdatedV1", update, nil)
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cancel()
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return resp.PayloadStatus.Status, err
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}
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