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block.go
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block.go
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package kv
import (
"github.com/pkg/errors"
ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
stateTrie "github.com/prysmaticlabs/prysm/beacon-chain/state"
)
// SaveBlockAttestation saves an block attestation in cache.
func (p *AttCaches) SaveBlockAttestation(att *ethpb.Attestation) error {
if att == nil {
return nil
}
r, err := hashFn(att.Data)
if err != nil {
return errors.Wrap(err, "could not tree hash attestation")
}
p.blockAttLock.Lock()
defer p.blockAttLock.Unlock()
atts, ok := p.blockAtt[r]
if !ok {
atts = make([]*ethpb.Attestation, 0)
}
// Ensure that this attestation is not already fully contained in an existing attestation.
for _, a := range atts {
if a.AggregationBits.Contains(att.AggregationBits) {
return nil
}
}
p.blockAtt[r] = append(atts, stateTrie.CopyAttestation(att))
return nil
}
// SaveBlockAttestations saves a list of block attestations in cache.
func (p *AttCaches) SaveBlockAttestations(atts []*ethpb.Attestation) error {
for _, att := range atts {
if err := p.SaveBlockAttestation(att); err != nil {
return err
}
}
return nil
}
// BlockAttestations returns the block attestations in cache.
func (p *AttCaches) BlockAttestations() []*ethpb.Attestation {
atts := make([]*ethpb.Attestation, 0)
p.blockAttLock.RLock()
defer p.blockAttLock.RUnlock()
for _, att := range p.blockAtt {
atts = append(atts, att...)
}
return atts
}
// DeleteBlockAttestation deletes a block attestation in cache.
func (p *AttCaches) DeleteBlockAttestation(att *ethpb.Attestation) error {
if att == nil {
return nil
}
r, err := hashFn(att.Data)
if err != nil {
return errors.Wrap(err, "could not tree hash attestation")
}
p.blockAttLock.Lock()
defer p.blockAttLock.Unlock()
delete(p.blockAtt, r)
return nil
}