prysm-pulse/beacon-chain/sync/subscriber_beacon_attestation.go
2020-11-22 14:31:55 -06:00

72 lines
2.2 KiB
Go

package sync
import (
"context"
"fmt"
"github.com/gogo/protobuf/proto"
"github.com/pkg/errors"
eth "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
"github.com/prysmaticlabs/prysm/beacon-chain/cache"
"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
"github.com/prysmaticlabs/prysm/beacon-chain/core/feed/operation"
"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
"github.com/prysmaticlabs/prysm/shared/params"
"github.com/prysmaticlabs/prysm/shared/sliceutil"
)
func (s *Service) committeeIndexBeaconAttestationSubscriber(_ context.Context, msg proto.Message) error {
a, ok := msg.(*eth.Attestation)
if !ok {
return fmt.Errorf("message was not type *eth.Attestation, type=%T", msg)
}
if a.Data == nil {
return errors.New("nil attestation")
}
s.setSeenCommitteeIndicesSlot(a.Data.Slot, a.Data.CommitteeIndex, a.AggregationBits)
exists, err := s.attPool.HasAggregatedAttestation(a)
if err != nil {
return errors.Wrap(err, "Could not determine if attestation pool has this atttestation")
}
if exists {
return nil
}
// Broadcast the unaggregated attestation on a feed to notify other services in the beacon node
// of a received unaggregated attestation.
s.attestationNotifier.OperationFeed().Send(&feed.Event{
Type: operation.UnaggregatedAttReceived,
Data: &operation.UnAggregatedAttReceivedData{
Attestation: a,
},
})
return s.attPool.SaveUnaggregatedAttestation(a)
}
func (s *Service) persistentSubnetIndices() []uint64 {
return cache.SubnetIDs.GetAllSubnets()
}
func (s *Service) aggregatorSubnetIndices(currentSlot uint64) []uint64 {
endEpoch := helpers.SlotToEpoch(currentSlot) + 1
endSlot := endEpoch * params.BeaconConfig().SlotsPerEpoch
var commIds []uint64
for i := currentSlot; i <= endSlot; i++ {
commIds = append(commIds, cache.SubnetIDs.GetAggregatorSubnetIDs(i)...)
}
return sliceutil.SetUint64(commIds)
}
func (s *Service) attesterSubnetIndices(currentSlot uint64) []uint64 {
endEpoch := helpers.SlotToEpoch(currentSlot) + 1
endSlot := endEpoch * params.BeaconConfig().SlotsPerEpoch
var commIds []uint64
for i := currentSlot; i <= endSlot; i++ {
commIds = append(commIds, cache.SubnetIDs.GetAttesterSubnetIDs(i)...)
}
return sliceutil.SetUint64(commIds)
}