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https://github.com/octoleo/syncthing.git
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b13b15758d
This adds a statistic to track the last connection duration per device. It isn't used for much in this PR, but it's available for #7223 to use in deciding how to order device connection attempts (deprioritizing devices that just dropped our connection the last time).
87 lines
2.4 KiB
Go
87 lines
2.4 KiB
Go
// Copyright (C) 2014 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at https://mozilla.org/MPL/2.0/.
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package stats
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import (
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"time"
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"github.com/syncthing/syncthing/lib/db"
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"github.com/syncthing/syncthing/lib/db/backend"
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"github.com/syncthing/syncthing/lib/protocol"
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)
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const (
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lastSeenKey = "lastSeen"
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connDurationKey = "lastConnDuration"
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)
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type DeviceStatistics struct {
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LastSeen time.Time `json:"lastSeen"`
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LastConnectionDurationS float64 `json:"lastConnectionDurationS"`
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}
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type DeviceStatisticsReference struct {
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ns *db.NamespacedKV
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device protocol.DeviceID
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}
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func NewDeviceStatisticsReference(dba backend.Backend, device protocol.DeviceID) *DeviceStatisticsReference {
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return &DeviceStatisticsReference{
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ns: db.NewDeviceStatisticsNamespace(dba, device.String()),
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device: device,
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}
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}
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func (s *DeviceStatisticsReference) GetLastSeen() (time.Time, error) {
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t, ok, err := s.ns.Time(lastSeenKey)
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if err != nil {
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return time.Time{}, err
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} else if !ok {
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// The default here is 1970-01-01 as opposed to the default
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// time.Time{} from s.ns
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return time.Unix(0, 0), nil
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}
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l.Debugln("stats.DeviceStatisticsReference.GetLastSeen:", s.device, t)
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return t, nil
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}
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func (s *DeviceStatisticsReference) GetLastConnectionDuration() (time.Duration, error) {
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d, ok, err := s.ns.Int64(connDurationKey)
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if err != nil {
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return 0, err
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} else if !ok {
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return 0, nil
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}
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l.Debugln("stats.DeviceStatisticsReference.GetLastConnectionDuration:", s.device, d)
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return time.Duration(d), nil
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}
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func (s *DeviceStatisticsReference) WasSeen() error {
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l.Debugln("stats.DeviceStatisticsReference.WasSeen:", s.device)
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return s.ns.PutTime(lastSeenKey, time.Now())
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}
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func (s *DeviceStatisticsReference) LastConnectionDuration(d time.Duration) error {
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l.Debugln("stats.DeviceStatisticsReference.LastConnectionDuration:", s.device, d)
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return s.ns.PutInt64(connDurationKey, d.Nanoseconds())
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}
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func (s *DeviceStatisticsReference) GetStatistics() (DeviceStatistics, error) {
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lastSeen, err := s.GetLastSeen()
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if err != nil {
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return DeviceStatistics{}, err
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}
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lastConnDuration, err := s.GetLastConnectionDuration()
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if err != nil {
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return DeviceStatistics{}, err
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}
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return DeviceStatistics{
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LastSeen: lastSeen,
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LastConnectionDurationS: lastConnDuration.Seconds(),
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}, nil
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}
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