mirror of
https://github.com/octoleo/syncthing.git
synced 2024-11-09 23:00:58 +00:00
134 lines
3.4 KiB
Go
134 lines
3.4 KiB
Go
// Copyright (C) 2014 The Syncthing Authors.
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify it
|
|
// under the terms of the GNU General Public License as published by the Free
|
|
// Software Foundation, either version 3 of the License, or (at your option)
|
|
// any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful, but WITHOUT
|
|
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
// more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License along
|
|
// with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package stats
|
|
|
|
import (
|
|
"encoding/binary"
|
|
"time"
|
|
|
|
"github.com/syndtr/goleveldb/leveldb"
|
|
)
|
|
|
|
const (
|
|
folderStatisticTypeLastFile = iota
|
|
)
|
|
|
|
var folderStatisticsTypes = []byte{
|
|
folderStatisticTypeLastFile,
|
|
}
|
|
|
|
type FolderStatistics struct {
|
|
LastFile *LastFile
|
|
}
|
|
|
|
type FolderStatisticsReference struct {
|
|
db *leveldb.DB
|
|
folder string
|
|
}
|
|
|
|
func NewFolderStatisticsReference(db *leveldb.DB, folder string) *FolderStatisticsReference {
|
|
return &FolderStatisticsReference{
|
|
db: db,
|
|
folder: folder,
|
|
}
|
|
}
|
|
|
|
func (s *FolderStatisticsReference) key(stat byte) []byte {
|
|
k := make([]byte, 1+1+64)
|
|
k[0] = keyTypeFolderStatistic
|
|
k[1] = stat
|
|
copy(k[1+1:], s.folder[:])
|
|
return k
|
|
}
|
|
|
|
func (s *FolderStatisticsReference) GetLastFile() *LastFile {
|
|
value, err := s.db.Get(s.key(folderStatisticTypeLastFile), nil)
|
|
if err != nil {
|
|
if err != leveldb.ErrNotFound {
|
|
l.Warnln("FolderStatisticsReference: Failed loading last file filename value for", s.folder, ":", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
file := LastFile{}
|
|
err = file.UnmarshalBinary(value)
|
|
if err != nil {
|
|
l.Warnln("FolderStatisticsReference: Failed loading last file value for", s.folder, ":", err)
|
|
return nil
|
|
}
|
|
return &file
|
|
}
|
|
|
|
func (s *FolderStatisticsReference) ReceivedFile(filename string) {
|
|
f := LastFile{
|
|
Filename: filename,
|
|
At: time.Now(),
|
|
}
|
|
if debug {
|
|
l.Debugln("stats.FolderStatisticsReference.ReceivedFile:", s.folder)
|
|
}
|
|
|
|
value, err := f.MarshalBinary()
|
|
if err != nil {
|
|
l.Warnln("FolderStatisticsReference: Failed serializing last file value for", s.folder, ":", err)
|
|
return
|
|
}
|
|
|
|
err = s.db.Put(s.key(folderStatisticTypeLastFile), value, nil)
|
|
if err != nil {
|
|
l.Warnln("Failed update last file value for", s.folder, ":", err)
|
|
}
|
|
}
|
|
|
|
// Never called, maybe because it's worth while to keep the data
|
|
// or maybe because we have no easy way of knowing that a folder has been removed.
|
|
func (s *FolderStatisticsReference) Delete() error {
|
|
for _, stype := range folderStatisticsTypes {
|
|
err := s.db.Delete(s.key(stype), nil)
|
|
if debug && err == nil {
|
|
l.Debugln("stats.FolderStatisticsReference.Delete:", s.folder, stype)
|
|
}
|
|
if err != nil && err != leveldb.ErrNotFound {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (s *FolderStatisticsReference) GetStatistics() FolderStatistics {
|
|
return FolderStatistics{
|
|
LastFile: s.GetLastFile(),
|
|
}
|
|
}
|
|
|
|
type LastFile struct {
|
|
At time.Time
|
|
Filename string
|
|
}
|
|
|
|
func (f *LastFile) MarshalBinary() ([]byte, error) {
|
|
buf := make([]byte, 8+len(f.Filename))
|
|
binary.BigEndian.PutUint64(buf[:8], uint64(f.At.Unix()))
|
|
copy(buf[8:], []byte(f.Filename))
|
|
return buf, nil
|
|
}
|
|
|
|
func (f *LastFile) UnmarshalBinary(buf []byte) error {
|
|
f.At = time.Unix(int64(binary.BigEndian.Uint64(buf[:8])), 0)
|
|
f.Filename = string(buf[8:])
|
|
return nil
|
|
}
|