func (ks *Keyserver) findRatificationsForEpoch(epoch uint64, desiredVerifiers map[uint64]struct{}) (
ratifications []*proto.SignedEpochHead, haveVerifiers map[uint64]struct{}, err error,
) {
ratifications = []*proto.SignedEpochHead{}
haveVerifiers = make(map[uint64]struct{})
for verifier := range desiredVerifiers {
sehBytes, err := ks.db.Get(tableRatifications(epoch, verifier))
switch err {
case nil:
case ks.db.ErrNotFound():
continue
default:
log.Printf("ERROR: ks.db.Get(tableRatifications(%d, %d): %s", epoch, verifier, err)
return nil, nil, fmt.Errorf("internal error")
}
seh := new(proto.SignedEpochHead)
err = seh.Unmarshal(sehBytes)
if err != nil {
log.Printf("ERROR: tableRatifications(%d, %d) = %x is invalid: %s", epoch, verifier, sehBytes, err)
return nil, nil, fmt.Errorf("internal error")
}
ratifications = append(ratifications, seh)
haveVerifiers[verifier] = struct{}{}
}
return
}
func (ks *Keyserver) allRatificationsForEpoch(epoch uint64) (map[uint64]*proto.SignedEpochHead, error) {
iter := ks.db.NewIterator(&kv.Range{Start: tableRatifications(epoch, 0), Limit: tableRatifications(epoch+1, 0)})
defer iter.Release()
sehs := make(map[uint64]*proto.SignedEpochHead)
for iter.Next() {
id := binary.BigEndian.Uint64(iter.Key()[1+8 : 1+8+8])
seh := new(proto.SignedEpochHead)
err := seh.Unmarshal(iter.Value())
if err != nil {
log.Panicf("tableRatifications(%d, %d) invalid: %s", epoch, id, err)
}
sehs[id] = seh
}
if err := iter.Error(); err != nil {
return nil, err
}
return sehs, nil
}
