func archiveAndSaveConfig(cfg *config.Wrapper) error {
// To prevent previous config from being cleaned up, quickly touch it too
now := time.Now()
_ = os.Chtimes(cfg.ConfigPath(), now, now) // May return error on Android etc; no worries
archivePath := cfg.ConfigPath() + fmt.Sprintf(".v%d", cfg.Raw().OriginalVersion)
l.Infoln("Archiving a copy of old config file format at:", archivePath)
if err := osutil.Rename(cfg.ConfigPath(), archivePath); err != nil {
return err
}
return cfg.Save()
}
// NewProgressEmitter creates a new progress emitter which emits
// DownloadProgress events every interval.
func NewProgressEmitter(cfg *config.Wrapper) *ProgressEmitter {
t := &ProgressEmitter{
stop: make(chan struct{}),
registry: make(map[string]*sharedPullerState),
last: make(map[string]map[string]*pullerProgress),
timer: time.NewTimer(time.Millisecond),
mut: sync.NewMutex(),
}
t.CommitConfiguration(config.Configuration{}, cfg.Raw())
cfg.Subscribe(t)
return t
}
func newUsageReportingManager(cfg *config.Wrapper, m *model.Model) *usageReportingManager {
mgr := &usageReportingManager{
cfg: cfg,
model: m,
}
// Start UR if it's enabled.
mgr.CommitConfiguration(config.Configuration{}, cfg.Raw())
// Listen to future config changes so that we can start and stop as
// appropriate.
cfg.Subscribe(mgr)
return mgr
}
func NewService(cfg *config.Wrapper, tlsCfg *tls.Config) *Service {
conns := make(chan *tls.Conn)
service := &Service{
Supervisor: suture.New("Service", suture.Spec{
Log: func(log string) {
l.Debugln(log)
},
FailureBackoff: 5 * time.Minute,
FailureDecay: float64((10 * time.Minute) / time.Second),
FailureThreshold: 5,
}),
cfg: cfg,
tlsCfg: tlsCfg,
tokens: make(map[string]suture.ServiceToken),
clients: make(map[string]client.RelayClient),
mut: sync.NewRWMutex(),
invitations: make(chan protocol.SessionInvitation),
conns: conns,
}
rcfg := cfg.Raw()
service.CommitConfiguration(rcfg, rcfg)
cfg.Subscribe(service)
receiver := &invitationReceiver{
tlsCfg: tlsCfg,
conns: conns,
invitations: service.invitations,
stop: make(chan struct{}),
}
eventBc := &eventBroadcaster{
Service: service,
stop: make(chan struct{}),
}
service.Add(receiver)
service.Add(eventBc)
return service
}