layout: post title: 高级并发接口:future、promise、 package_task 和 async categories: cpp_concurrency description: C++并发编程简介 keywords: c++, 并发编程,std::future,std::package_task,std::promise,std::async 读写锁 使用promise获取异步结果 参考:C++11之获取线程返回值...
5.std::package_task对象一般与std::thread配合使用,而不是std::async。如果要使用std::async运行任务,就没有理由去创建std::package_task对象。因为std::async调用时,内部会创建一个基类为_Packaged_state类 “共享状态”的子类对象,而std::package_task也会创建_Packaged_state类的对象。可见std::async能够在调...
1) Task的实例必须在UI thread中创建 2) execute方法必须在UI thread中调用 3) 不要手动的调用onPreExecute(), onPostExecute(Result),doInBackground(Params...), onProgressUpdate(Progress...)这几个方法 4) 该task只能被执行一次,否则多次调用时将会出现异常 下面是AsyncTask异步获取已安装程序列表的例子: pub...
创建AsyncPackage 将现有 VSPackage 转换为 AsyncPackage 从AsyncPackage 查询服务 加载和初始化 VS 包可能会导致磁盘 I/O。 如果在 UI 线程上发生此类 I/O,可能会导致响应问题。 为了解决此问题,Visual Studio 2015 引入了AsyncPackage在后台线程上启用包加载的类。
IAsyncOperation<IReadOnlyList<StartupTask>> このメソッドが完了すると、現在のアプリ パッケージのすべてのスタートアップ タスクが返されます。 属性 RemoteAsyncAttribute 適用対象 製品バージョン WinRTBuild 14383, Build 15063, Build 16299, Build 17134, Build 17763, Build 18362, Build 1904...
AsyncOpenDocumentResult AsyncPackage AsyncPackage 构造函数 属性 方法 显式接口实现 AsyncSaveResult AsyncServiceCreatorCallback AsyncServiceCreatorWithProgressCallback AsyncServiceProvider AuthenticationState BlockingTaskEventArgs BulkFileOperation CircularTaskDependencyException CloseResult CodeContainer CodeGeneratorRegistrat...
[] updates; auto downloadAsyncBlock = std::make_unique<XAsyncBlock>(); ZeroMemory(downloadAsyncBlock.get(), sizeof(*downloadAsyncBlock)); downloadAsyncBlock->queue = updateContext->taskQueueHandle; downloadAsyncBlock->context = updateContext; if (updateContext->downloadOnly) {...
package-managerpackageunityasynctasksunity3dunity-scriptsunity3d-plugincoroutineunitypackageupmunity-packageopenupmunity-threadasync-utility UpdatedAug 30, 2023 C# Unity Parallax based on gyroscope components. unityparallaxgyroscopeunity3dunitypackageunity2dunity-pluginparallax-effectunitypluginunity-package ...
thread::send -head -async $t "showInfo {$i HEAD}" } puts "Completed Loop" set done 0 vwait done The output generated by this application looks like this: Completed Loop 0 Elapsed Time: 2 3 HEAD Elapsed Time: 4 2 HEAD Elapsed Time: 6 ...
Querying Services from AsyncPackage 备注 This article applies to Visual Studio 2015. If you're looking for the latest Visual Studio documentation, seeVisual Studio documentation. We recommend upgrading to the latest version of Visual Studio.Download it here ...