fix bug with all zero weights

go-socks-lb/dw.json

@@ -1,3 +1,3 @@
 {
-    "weights": [0, 0, 0, 2]
+    "weights": [1, 0, 0, 0]
 }

go-socks-lb/main.go

@@ -151,6 +151,10 @@ func (pm *ProxyManager) applyWeight() {
 			chooseArr = append(chooseArr, wr.Choice{Item: len(pm.enabledIndics) - 1, Weight: uint(p.Weight)})
 		}
 	}
+	if len(pm.enabledIndics) == 0 {
+		fmt.Println("no enabled indice, proxy will be disabled.")
+		return
+	}
 	fmt.Println("enabled indices:", pm.enabledIndics)
 	pm.Chooser = wr.NewChooser(chooseArr...)
 	// update cache to remove disabled proxys