in client/proxy/proxy_wrapper.go [155:199]
func (pw *Wrapper) checkWorker() {
xl := pw.xl
if pw.monitor != nil {
// let monitor do check request first
time.Sleep(500 * time.Millisecond)
}
for {
// check proxy status
now := time.Now()
if atomic.LoadUint32(&pw.health) == 0 {
pw.mu.Lock()
if pw.Phase == ProxyPhaseNew ||
pw.Phase == ProxyPhaseCheckFailed ||
(pw.Phase == ProxyPhaseWaitStart && now.After(pw.lastSendStartMsg.Add(waitResponseTimeout))) ||
(pw.Phase == ProxyPhaseStartErr && now.After(pw.lastStartErr.Add(startErrTimeout))) {
xl.Trace("change status from [%s] to [%s]", pw.Phase, ProxyPhaseWaitStart)
pw.Phase = ProxyPhaseWaitStart
var newProxyMsg msg.NewProxy
pw.Cfg.MarshalToMsg(&newProxyMsg)
pw.lastSendStartMsg = now
_ = pw.handler(&event.StartProxyPayload{
NewProxyMsg: &newProxyMsg,
})
}
pw.mu.Unlock()
} else {
pw.mu.Lock()
if pw.Phase == ProxyPhaseRunning || pw.Phase == ProxyPhaseWaitStart {
pw.close()
xl.Trace("change status from [%s] to [%s]", pw.Phase, ProxyPhaseCheckFailed)
pw.Phase = ProxyPhaseCheckFailed
}
pw.mu.Unlock()
}
select {
case <-pw.closeCh:
return
case <-time.After(statusCheckInterval):
case <-pw.healthNotifyCh:
}
}
}