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
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
// (c) 2019-2020, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package evm
import (
"errors"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ava-labs/avalanchego/database"
)
var (
errOpNotSupported = errors.New("this operation is not supported")
)
// Database implements ethdb.Database
type Database struct{ database.Database }
// HasAncient returns an error as we don't have a backing chain freezer.
func (db Database) HasAncient(kind string, number uint64) (bool, error) {
return false, errOpNotSupported
}
// Ancient returns an error as we don't have a backing chain freezer.
func (db Database) Ancient(kind string, number uint64) ([]byte, error) { return nil, errOpNotSupported }
// Ancients returns an error as we don't have a backing chain freezer.
func (db Database) Ancients() (uint64, error) { return 0, errOpNotSupported }
// AncientSize returns an error as we don't have a backing chain freezer.
func (db Database) AncientSize(kind string) (uint64, error) { return 0, errOpNotSupported }
// AppendAncient returns an error as we don't have a backing chain freezer.
func (db Database) AppendAncient(number uint64, hash, header, body, receipts, td []byte) error {
return errOpNotSupported
}
// TruncateAncients returns an error as we don't have a backing chain freezer.
func (db Database) TruncateAncients(items uint64) error { return errOpNotSupported }
// Sync returns an error as we don't have a backing chain freezer.
func (db Database) Sync() error { return errOpNotSupported }
// NewBatch implements ethdb.Database
func (db Database) NewBatch() ethdb.Batch { return Batch{db.Database.NewBatch()} }
// NewIterator implements ethdb.Database
func (db Database) NewIterator(prefix []byte, start []byte) ethdb.Iterator {
return db.NewIteratorWithStartAndPrefix(start, prefix)
}
// NewIteratorWithStart implements ethdb.Database
func (db Database) NewIteratorWithStart(start []byte) ethdb.Iterator {
return db.NewIteratorWithStart(start)
}
// Batch implements ethdb.Batch
type Batch struct{ database.Batch }
// Replay implements ethdb.Batch
func (batch Batch) Replay(w ethdb.KeyValueWriter) error { return batch.Batch.Replay(w) }
|