mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2025-01-09 20:41:20 +00:00
9091ce62bb
* move IdealBatchSize method to Batch object :-) remove cursor.Walk remove kv.IdealBatchSize * remove bolt_db.go file * move method NoValueCursor to tx object
80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
package ethdb
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
|
|
"github.com/ledgerwatch/turbo-geth/common"
|
|
)
|
|
|
|
var (
|
|
ErrAttemptToDeleteNonDeprecatedBucket = errors.New("only buckets from dbutils.DeprecatedBuckets can be deleted")
|
|
ErrUnknownBucket = errors.New("unknown bucket. add it to dbutils.Buckets")
|
|
)
|
|
|
|
type KV interface {
|
|
View(ctx context.Context, f func(tx Tx) error) error
|
|
Update(ctx context.Context, f func(tx Tx) error) error
|
|
Close()
|
|
|
|
Begin(ctx context.Context, parent Tx, writable bool) (Tx, error)
|
|
}
|
|
|
|
type Tx interface {
|
|
Cursor(bucket string) Cursor
|
|
NoValuesCursor(bucket string) NoValuesCursor
|
|
Get(bucket string, key []byte) (val []byte, err error)
|
|
|
|
Commit(ctx context.Context) error
|
|
Rollback()
|
|
BucketSize(name string) (uint64, error)
|
|
}
|
|
|
|
// Interface used for buckets migration, don't use it in usual app code
|
|
type BucketMigrator interface {
|
|
DropBucket(string) error
|
|
CreateBucket(string) error
|
|
ExistsBucket(string) bool
|
|
ClearBucket(string) error
|
|
ExistingBuckets() ([]string, error)
|
|
}
|
|
|
|
type Cursor interface {
|
|
Prefix(v []byte) Cursor
|
|
Prefetch(v uint) Cursor
|
|
|
|
First() ([]byte, []byte, error)
|
|
Seek(seek []byte) ([]byte, []byte, error)
|
|
SeekExact(key []byte) ([]byte, error)
|
|
Next() ([]byte, []byte, error)
|
|
Last() ([]byte, []byte, error)
|
|
|
|
Put(key []byte, value []byte) error
|
|
Delete(key []byte) error
|
|
Append(key []byte, value []byte) error // Returns error if provided data not sorted or has duplicates
|
|
}
|
|
|
|
type NoValuesCursor interface {
|
|
First() ([]byte, uint32, error)
|
|
Seek(seek []byte) ([]byte, uint32, error)
|
|
Next() ([]byte, uint32, error)
|
|
}
|
|
|
|
type HasStats interface {
|
|
DiskSize(context.Context) (uint64, error) // db size
|
|
}
|
|
|
|
type Backend interface {
|
|
AddLocal([]byte) ([]byte, error)
|
|
Etherbase() (common.Address, error)
|
|
NetVersion() (uint64, error)
|
|
}
|
|
|
|
type DbProvider uint8
|
|
|
|
const (
|
|
Bolt DbProvider = iota
|
|
Remote
|
|
Lmdb
|
|
)
|