rclone/lib/kv/types.go

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package kv
import (
"context"
"errors"
)
// package errors
var (
ErrEmpty = errors.New("database empty")
ErrInactive = errors.New("database stopped")
ErrUnsupported = errors.New("unsupported on this OS")
)
// Op represents a database operation
type Op interface {
Do(context.Context, Bucket) error
}
// Bucket decouples bbolt.Bucket from key-val operations
type Bucket interface {
Get([]byte) []byte
Put([]byte, []byte) error
Delete([]byte) error
ForEach(func(bkey, data []byte) error) error
Cursor() Cursor
}
// Cursor decouples bbolt.Cursor from key-val operations
type Cursor interface {
First() ([]byte, []byte)
Next() ([]byte, []byte)
Seek([]byte) ([]byte, []byte)
}