Merge pull request #5968 from filcloud/ping-ask

remove duplicate ask and calculate ping before lock

cli/client.go

@@ -1297,6 +1297,7 @@ var clientListAsksCmd = &cli.Command{
 	Flags: []cli.Flag{
 		&cli.BoolFlag{
 			Name:  "by-ping",
+			Usage: "sort by ping",
 		},
 		&cli.StringFlag{
 			Name:  "output-format",
@@ -1451,17 +1452,17 @@ loop:
 				}
 
 				rt := time.Now()
-
 				_, err = api.ClientQueryAsk(ctx, *mi.PeerId, miner)
 				if err != nil {
 					return
 				}
+				pingDuration := time.Now().Sub(rt)
 
 				atomic.AddInt64(&got, 1)
 				lk.Lock()
 				asks = append(asks, QueriedAsk{
 					Ask:  ask,
-					Ping: time.Now().Sub(rt),
+					Ping: pingDuration,
 				})
 				lk.Unlock()
 			}(miner)