mirror of
https://github.com/ethereum/go-ethereum.git
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efe58eac00
Adds a fast path for ExecutionPayloadEnvelope and BlobAndProofListV* that bypasses encoding/json's reflection and re-validation, which are expensive for large payloads with many blobs. Also hand-rolls the jsonrpcMessage wire encoding in the RPC codec to avoid a second re-validation pass when writing responses to the connection. Resolves #33814 --------- Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de> Co-authored-by: Felix Lange <fjl@twurst.com>
98 lines
2.4 KiB
Go
98 lines
2.4 KiB
Go
// Copyright 2026 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 engine
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import (
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"encoding/json"
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"errors"
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"github.com/fjl/jsonw"
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)
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// marshalBlobsBundle writes BlobsBundle as JSON and appends it to buf.
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func marshalBlobsBundle(b *jsonw.Buffer, bundle *BlobsBundle) {
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if bundle == nil {
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b.Null()
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return
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}
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b.Object(func() {
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b.Key("commitments")
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appendHexBytesArray(b, bundle.Commitments)
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b.Key("proofs")
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appendHexBytesArray(b, bundle.Proofs)
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b.Key("blobs")
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appendHexBytesArray(b, bundle.Blobs)
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})
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}
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// MarshalJSON implements json.Marshaler.
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func (e ExecutionPayloadEnvelope) MarshalJSON() ([]byte, error) {
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if e.ExecutionPayload == nil {
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return nil, errors.New("missing required field 'executionPayload' for ExecutionPayloadEnvelope")
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}
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// Pre-marshal the execution payload using its gencodec MarshalJSON.
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payload, err := e.ExecutionPayload.MarshalJSON()
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if err != nil {
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return nil, err
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}
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// Pre-marshal the witness.
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var witness []byte
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if e.Witness != nil {
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witness, err = json.Marshal(e.Witness)
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if err != nil {
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return nil, err
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}
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}
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// Write the execution payload to the buffer
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var b jsonw.Buffer
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b.Object(func() {
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b.Key("executionPayload")
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b.RawValue(payload)
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b.Key("blockValue")
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b.HexBigInt(e.BlockValue)
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b.Key("blobsBundle")
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marshalBlobsBundle(&b, e.BlobsBundle)
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b.Key("executionRequests")
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if e.Requests == nil {
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b.Null()
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} else {
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appendHexBytesArray(&b, e.Requests)
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}
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b.Key("shouldOverrideBuilder")
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b.Bool(e.Override)
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if e.Witness != nil {
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b.Key("witness")
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b.RawValue(witness)
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}
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})
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return b.Output(), nil
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}
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func appendHexBytesArray[T ~[]byte](b *jsonw.Buffer, slice []T) {
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b.Array(func() {
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for _, elem := range slice {
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b.HexBytes(elem)
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}
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})
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}
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