// Quit terminates the XMPP conversation so that new jobs stop arriving.
func (x *XMPP) Quit() {
// Signal to KeepXMPPAlive.
close(x.quit)
select {
case <-x.dead:
// Wait for XMPP to die.
case <-time.After(3 * time.Second):
// But not too long.
log.Error("XMPP taking a while to close, so giving up")
}
}
// keepXMPPAlive restarts XMPP when it fails.
func (x *XMPP) keepXMPPAlive() {
for {
select {
case <-x.dead:
log.Error("XMPP conversation died; restarting")
if err := x.startXMPP(); err != nil {
for err != nil {
log.Errorf("XMPP restart failed, will try again in 10s: %s", err)
time.Sleep(10 * time.Second)
err = x.startXMPP()
}
log.Error("XMPP conversation restarted successfully")
}
case <-x.quit:
// Close XMPP.
x.ix.Quit()
return
}
}
}
func (pm *PrinterManager) syncPrintersPeriodically(interval time.Duration) {
go func() {
t := time.NewTimer(interval)
defer t.Stop()
for {
select {
case <-t.C:
if err := pm.syncPrinters(false); err != nil {
log.Error(err)
}
t.Reset(interval)
case <-pm.quit:
return
}
}
}()
}