syncthing/lib/stats/device.go

58 lines
1.4 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 stats
import (
"time"
"github.com/syncthing/syncthing/lib/db"
)
type DeviceStatistics struct {
LastSeen time.Time `json:"lastSeen"`
}
type DeviceStatisticsReference struct {
ns *db.NamespacedKV
device string
}
func NewDeviceStatisticsReference(ldb *db.Lowlevel, device string) *DeviceStatisticsReference {
return &DeviceStatisticsReference{
ns: db.NewDeviceStatisticsNamespace(ldb, device),
device: device,
}
}
func (s *DeviceStatisticsReference) GetLastSeen() (time.Time, error) {
t, ok, err := s.ns.Time("lastSeen")
if err != nil {
return time.Time{}, err
} else if !ok {
// The default here is 1970-01-01 as opposed to the default
// time.Time{} from s.ns
return time.Unix(0, 0), nil
}
l.Debugln("stats.DeviceStatisticsReference.GetLastSeen:", s.device, t)
return t, nil
}
func (s *DeviceStatisticsReference) WasSeen() error {
l.Debugln("stats.DeviceStatisticsReference.WasSeen:", s.device)
return s.ns.PutTime("lastSeen", time.Now())
}
func (s *DeviceStatisticsReference) GetStatistics() (DeviceStatistics, error) {
lastSeen, err := s.GetLastSeen()
if err != nil {
return DeviceStatistics{}, err
}
return DeviceStatistics{
LastSeen: lastSeen,
}, nil
}