mirror of
https://github.com/syncthing/syncthing.git
synced 2026-05-24 08:55:19 -04:00
025905fcdf
Switch the database from LevelDB to SQLite, for greater stability and simpler code. Co-authored-by: Tommy van der Vorst <tommy@pixelspark.nl> Co-authored-by: bt90 <btom1990@googlemail.com>
71 lines
2.0 KiB
Go
71 lines
2.0 KiB
Go
// Copyright (C) 2014 The Syncthing Authors.
|
|
//
|
|
// This Source Code Form is subject to the terms of the Mozilla Public
|
|
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
|
|
// You can obtain one at https://mozilla.org/MPL/2.0/.
|
|
|
|
package olddb
|
|
|
|
import (
|
|
"encoding/binary"
|
|
"time"
|
|
|
|
"github.com/syncthing/syncthing/internal/db/olddb/backend"
|
|
)
|
|
|
|
// deprecatedLowlevel is the lowest level database interface. It has a very simple
|
|
// purpose: hold the actual backend database, and the in-memory state
|
|
// that belong to that database. In the same way that a single on disk
|
|
// database can only be opened once, there should be only one deprecatedLowlevel for
|
|
// any given backend.
|
|
type deprecatedLowlevel struct {
|
|
backend.Backend
|
|
folderIdx *smallIndex
|
|
deviceIdx *smallIndex
|
|
keyer keyer
|
|
}
|
|
|
|
func NewLowlevel(backend backend.Backend) (*deprecatedLowlevel, error) {
|
|
// Only log restarts in debug mode.
|
|
db := &deprecatedLowlevel{
|
|
Backend: backend,
|
|
folderIdx: newSmallIndex(backend, []byte{KeyTypeFolderIdx}),
|
|
deviceIdx: newSmallIndex(backend, []byte{KeyTypeDeviceIdx}),
|
|
}
|
|
db.keyer = newDefaultKeyer(db.folderIdx, db.deviceIdx)
|
|
return db, nil
|
|
}
|
|
|
|
// ListFolders returns the list of folders currently in the database
|
|
func (db *deprecatedLowlevel) ListFolders() []string {
|
|
return db.folderIdx.Values()
|
|
}
|
|
|
|
func (db *deprecatedLowlevel) IterateMtimes(fn func(folder, name string, ondisk, virtual time.Time) error) error {
|
|
it, err := db.NewPrefixIterator([]byte{KeyTypeVirtualMtime})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer it.Release()
|
|
for it.Next() {
|
|
key := it.Key()[1:]
|
|
folderID, ok := db.folderIdx.Val(binary.BigEndian.Uint32(key))
|
|
if !ok {
|
|
continue
|
|
}
|
|
name := key[4:]
|
|
val := it.Value()
|
|
var ondisk, virtual time.Time
|
|
if err := ondisk.UnmarshalBinary(val[:len(val)/2]); err != nil {
|
|
continue
|
|
}
|
|
if err := virtual.UnmarshalBinary(val[len(val)/2:]); err != nil {
|
|
continue
|
|
}
|
|
if err := fn(string(folderID), string(name), ondisk, virtual); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return it.Error()
|
|
}
|