fix: high CPU usage because futex is still waiting for queue after illegal exit

src/widget.cpp

@@ -18,6 +18,7 @@
 #include <QSettings>
 #include <QGraphicsOpacityEffect>
 #include <QtConcurrent> // 并发
+#include <QCloseEvent>  // close event
 
 #include <DApplication>
 #include <DGuiApplicationHelper>
@@ -687,10 +688,6 @@ void Widget::searchApp(QString text)
     }
     else
     {
-        // sendNotification(tr("Spark store could only process spk:// links for now. The search feature is coming soon!"));
-        // ui->webView->setUrl(QUrl("http://www.baidu.com/s?wd="+text));    // 这东西对接百度
-        // ui->stackedWidget->setCurrentIndex(0);
-
         // 禁止同时进行多次搜索
         if (!mutex.tryLock())
         {
@@ -711,18 +708,23 @@ void Widget::searchApp(QString text)
                 mutex.unlock();
                 return;
             }
-            displaySearchApp(json);
-        })
+            displaySearchApp(json); })
             .onError([this](QString errorStr)
                      {
             qDebug()  << "请求出错：" << errorStr;
             sendNotification(QString(tr("Request Error: %1")).arg(errorStr));
             mutex.unlock();
-            return;
-        })
+            return; })
             .timeout(10 * 1000)
             .exec();
     }
+    httpClient->deleteLater();
+}
+
+void Widget::closeEvent(QCloseEvent *event)
+{
+    mutex.unlock();
+    httpClient->deleteLater();
 }
 
 /**

src/widget.h

@@ -128,6 +128,7 @@ private:
     void setfoot(int);
     void updatefoot();
     void updateUI();
+    void closeEvent(QCloseEvent *event);
 
     quint64 dirFileSize(const QString &path);