// Stream is a long running routine used to stream the results of a query back to a client
func (qs *queryResponseStream) Stream(resp *serf.QueryResponse) {
	// Setup a timer for the query ending
	remaining := resp.Deadline().Sub(time.Now())
	done := time.After(remaining)

	ackCh := resp.AckCh()
	respCh := resp.ResponseCh()
	for {
		select {
		case a := <-ackCh:
			if err := qs.sendAck(a); err != nil {
				qs.logger.Printf("[ERR] agent.ipc: Failed to stream ack to %v: %v", qs.client, err)
				return
			}
		case r := <-respCh:
			if err := qs.sendResponse(r.From, r.Payload); err != nil {
				qs.logger.Printf("[ERR] agent.ipc: Failed to stream response to %v: %v", qs.client, err)
				return
			}
		case <-done:
			if err := qs.sendDone(); err != nil {
				qs.logger.Printf("[ERR] agent.ipc: Failed to stream query end to %v: %v", qs.client, err)
			}
			return
		}
	}
}
示例#2
0
func collectResponse(iface string, resp *serf.QueryResponse, s *eventual2go.StreamController, wg *sync.WaitGroup) {
	for r := range resp.ResponseCh() {
		s.Add(QueryResponseEvent{iface, r})
	}
	wg.Done()
}