/
genesis.go
36 lines (32 loc) · 932 Bytes
/
genesis.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
package kv
import (
"context"
"fmt"
bolt "go.etcd.io/bbolt"
)
// SaveGenesisValidatorsRoot saves the genesis validators root to db.
func (s *Store) SaveGenesisValidatorsRoot(_ context.Context, genValRoot []byte) error {
err := s.db.Update(func(tx *bolt.Tx) error {
bkt := tx.Bucket(genesisInfoBucket)
enc := bkt.Get(genesisValidatorsRootKey)
if len(enc) != 0 {
return fmt.Errorf("cannot overwrite existing genesis validators root: %#x", enc)
}
return bkt.Put(genesisValidatorsRootKey, genValRoot)
})
return err
}
// GenesisValidatorsRoot retrieves the genesis validators root from db.
func (s *Store) GenesisValidatorsRoot(_ context.Context) ([]byte, error) {
var genValRoot []byte
err := s.db.View(func(tx *bolt.Tx) error {
bkt := tx.Bucket(genesisInfoBucket)
enc := bkt.Get(genesisValidatorsRootKey)
if len(enc) == 0 {
return nil
}
genValRoot = enc
return nil
})
return genValRoot, err
}