The busy field in vcl.list may be "-" (if the child is not running).

pkg/admin/cli.go

@@ -495,7 +495,7 @@ var (
 		"cooling": Cooling,
 	}
 	vclMain = regexp.MustCompile(
-		`^(\w+)\s+(\w+)(?:/|\s+)(\w+)\s+(\d+)\s+(\S+)`)
+		`^(\w+)\s+(\w+)(?:/|\s+)(\w+)\s+(?:\d+|-)\s+(\S+)`)
 	vclLbls    = regexp.MustCompile(`->\s+(\S+)\s+\((\d+)`)
 	vclLblRefs = regexp.MustCompile(`(\d+)\s+labels?\)\s*$`)
 )
@@ -542,7 +542,9 @@ func (adm *Admin) VCLList() ([]VCLData, error) {
 					fmt.Errorf("Unknown temperature %s: %s",
 						main[3], vcl)
 			}
-			if b, e := strconv.ParseUint(main[4], 0, 0); e == nil {
+			if main[4] == "-" {
+				datum.Busy = 0
+			} else if b, e := strconv.ParseUint(main[4], 0, 0); e == nil {
 				datum.Busy = uint(b)
 			} else {
 				return data,