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badger_withdrawal.go
49 lines (42 loc) · 1.13 KB
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badger_withdrawal.go
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package storage
import (
"encoding/hex"
"github.com/MixinNetwork/mixin/common"
"github.com/MixinNetwork/mixin/crypto"
"github.com/dgraph-io/badger/v4"
)
func (s *BadgerStore) ReadWithdrawalClaim(hash crypto.Hash) (*common.VersionedTransaction, string, error) {
txn := s.snapshotsDB.NewTransaction(false)
defer txn.Discard()
key := graphWithdrawalClaimKey(hash)
item, err := txn.Get(key)
if err == badger.ErrKeyNotFound {
return nil, "", nil
} else if err != nil {
return nil, "", err
}
val, err := item.ValueCopy(nil)
if err != nil {
return nil, "", err
}
var claim crypto.Hash
if len(val) != len(claim) {
panic(hex.EncodeToString(val))
}
copy(claim[:], val)
return readTransactionAndFinalization(txn, claim)
}
func writeWithdrawalClaim(txn *badger.Txn, hash, claim crypto.Hash) error {
tx, snap, err := readTransactionAndFinalization(txn, hash)
if err != nil {
return err
}
if tx == nil || len(snap) != 64 {
panic(claim.String())
}
key := graphWithdrawalClaimKey(hash)
return txn.Set(key, claim[:])
}
func graphWithdrawalClaimKey(tx crypto.Hash) []byte {
return append([]byte(graphPrefixWithdrawal), tx[:]...)
}