Fix bug can not get wired list for QProcess::start: Process is already running

src/ksimplenm.cpp

@@ -44,6 +44,7 @@ void KSimpleNM::execGetLanList()
     isExecutingGetLanList = true;
     shellOutput = "";
     type = 0;
+
     runShellProcess->start("nmcli -f type,uuid,name connection show");
 }
 

src/mainwindow.cpp

@@ -1322,11 +1322,21 @@ void MainWindow::on_btnWifiList_clicked()
 // 获取lan列表回调
 void MainWindow::getLanListDone(QStringList slist)
 {
+    //要求使用上一次获取到的列表
     if (this->ksnm->isUseOldLanSlist) {
         slist = oldLanSlist;
         this->ksnm->isUseOldLanSlist = false;
     }
 
+    //若slist为空，则也使用上一次获取到的列表
+    if (slist.size() == 1 && slist.at(0) == "") {
+        if (oldLanSlist.size() == 1 && oldLanSlist.at(0) == "") {
+            return;
+        } else {
+            slist = oldLanSlist;
+        }
+    }
+
     delete topLanListWidget; // 清空top列表
     createTopLanUI(); //创建顶部有线网item