mirror of https://github.com/certusone/vouch.git
67 lines
1.9 KiB
Go
67 lines
1.9 KiB
Go
// Copyright © 2020 Attestant Limited.
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package multinode
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"sync"
|
|
|
|
eth2client "github.com/attestantio/go-eth2-client"
|
|
spec "github.com/attestantio/go-eth2-client/spec/phase0"
|
|
"github.com/pkg/errors"
|
|
"golang.org/x/sync/semaphore"
|
|
)
|
|
|
|
// SubmitAttestation submits an attestation.
|
|
func (s *Service) SubmitAttestation(ctx context.Context, attestation *spec.Attestation) error {
|
|
if attestation == nil {
|
|
return errors.New("no attestation supplied")
|
|
}
|
|
|
|
sem := semaphore.NewWeighted(s.processConcurrency)
|
|
var wg sync.WaitGroup
|
|
for name, submitter := range s.attestationSubmitters {
|
|
wg.Add(1)
|
|
go func(ctx context.Context,
|
|
sem *semaphore.Weighted,
|
|
wg *sync.WaitGroup,
|
|
name string,
|
|
submitter eth2client.AttestationSubmitter,
|
|
) {
|
|
defer wg.Done()
|
|
if err := sem.Acquire(ctx, 1); err != nil {
|
|
log.Error().Err(err).Msg("Failed to acquire semaphore")
|
|
return
|
|
}
|
|
defer sem.Release(1)
|
|
|
|
if err := submitter.SubmitAttestation(ctx, attestation); err != nil {
|
|
log.Warn().Str("submitter", name).Uint64("slot", attestation.Data.Slot).Err(err).Msg("Failed to submit attestation")
|
|
return
|
|
}
|
|
}(ctx, sem, &wg, name, submitter)
|
|
}
|
|
wg.Wait()
|
|
|
|
if e := log.Trace(); e.Enabled() {
|
|
data, err := json.Marshal(attestation)
|
|
if err == nil {
|
|
e.Str("attestation", string(data)).Msg("Submitted attestation")
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|