By now, I have shown the following usages of delegates... Callback and Multicast delegatesEventsOne more EventAsynchronous Callback - Way 1 - BeginInvoke > EndInvokeAsynchronous Callback - Way 2 - BeginInvoke > AsyncWaitHandle.WaitOne(x) > EndInv…

This is the final part of the series that started with... Callback and Multicast delegatesOne more EventAsynchronous Callback - Way 1 - BeginInvoke > EndInvokeAsynchronous Callback - Way 2 - BeginInvoke > AsyncWaitHandle.WaitOne(x) > EndInvoke &g…

So far, I have discussed about Callback, Multicast delegates, Events using delegates, and yet another example of events using delegates. In this post, I will take this topic one step forward and show you an example of Asynchronous callbacks using del…

In this part of making asynchronous programming with delegates, we will talk about a different way, which is a little better than Way 1. In the previous post, it was like a husband telling his wife... You know honey, I have a lot of work to do. Why d…

两个线程执行任务有同步和异步之分,看了Quora上的一些问答有了更深的认识. When you execute something synchronously, you wait for it to finish before moving on to another task. When you execute something asynchronously, you can move on to another task before it finishes. Synchronized m…

I hear a lot of confusion around Delegates in C#, and today I am going to give it shot of explaining the stuff with easy to understand examples. First things first... I will consciously try NOT to use any technical jargon to explain this concept. So…

In my previous post, I spoke about a few very basic and simple reasons of using delegates - primarily callback. In this post, I'll talk about creating Events using delegates. I have tried to annotate the class with comments so that it is easy to comp…

I was thinking that the previous post on Events and Delegates was quite self-explanatory. A couple of days ago, I received an email which said that may be it is not that good as to explain what I want to achieve in life through that event. So, I thou…

Learn how to write a promise based delay function and then use it in async await to see how much it simplifies code over setTimeout. Lets say you want to call a function after 1s, 2s, 3s. You can use setTimeout, or you can wrap it up into a simple de…

People often find it difficult to see the difference between events and delegates. C# doesn't help matters by allowing you to declare field-like events which are automatically backed by a delegate variable of the same name. This article aims to clari…

序:这是一篇发表在2003年6月刊的MSDN Magazine的文章,现在已经不能在线阅读,只提供chm下载.讲的是异步请求处理那些事,正是我上一篇博文涉及的东西(BTW,事实上这篇杂志阐述了那么搞然并卵),期间有搜索到这篇文章,很受裨益.担心MS哪么时候不再提供下载以及本地保管不便,所以现在誊上来,作为备份,方便日后回顾. Fritz Onion This article assumes you're familiar with C#, ASP.NET, and MultithreadingL…

https://msdn.microsoft.com/zh-cn/library/ms228963(v=vs.110).aspx 一.概念 An asynchronous operation that uses the IAsyncResult design pattern is implemented as two methods named BeginOperationName and EndOperationName that begin and end the asynchronous…

It’s been awesome seeing the level of interest developers have had for the Async CTP and how much usage it’s getting.  Of course, with any new technology there are bound to be some hiccups.  One issue I’ve seen arise now multiple times is developers…

A delegate is a type that safely encapsulates a method, similar to a function pointer in C and C++. Unlike C function pointers, delegates are object-oriented, type safe, and secure. The type of a delegate is defined by the name of the delegate. The f…

v博客前言 先交代下背景,写<C#多线程之旅>这个系列文章主要是因为以下几个原因:1.多线程在C/S和B/S架构中用得是非常多的;2.而且多线程的使用是非常复杂的,如果没有用好,容易造成很多问题. v写在前面 多线程,有利也有弊,使用需谨慎. v正文开始 原文地址:C#多线程之旅(3)——线程池 C#多线程之旅(1)——介绍和基本概念 C#多线程之旅(2)——创建和开始线程 C#多线程之旅(3)——线程池 C#多线程之旅(4)——APM初探 C#多线程之旅(5)——同步机制介绍 C#多线程之旅…

一.从MvcHandler开始(不要觉得是代码,让你看懂才是最重要的) using Microsoft.Web.Infrastructure.DynamicValidationHelper; using System; using System.Collections.Generic; using System.Globalization; using System.Linq; using System.Reflection; using System.Threading; using Syst…

转自:http://blog.csdn.net/lilian0118/article/details/23168531 这一章中我们来看Wifi Display连接过程的建立,包含P2P的部分和RTSP的部分,首先来大致看一下Wifi Display规范相关的东西. HIDC: Human Interface Device Class  (遵循HID标准的设备类)UIBC: User Input Back Channel  (UIBC分为两种,一种是Generic,包含鼠标.键盘等:另一种是HI…

很简单的一个wpf键盘记录器 这个程序我一样用了全局勾子,之前用的都是winform上运行了,前一段时间 在国外的论坛上逛看到了一个wpf能用的就做了一个小程序记录一下,为了方便大家直关的看我在页面上放了一个textbox, 用的时候不会这样一般都是保存到一个文本里呵呵不能做坏事 有三个主要的类 /// <summary> /// Raw keyevent handler. /// </summary> /// <param name="sender"&g…

2.2 Installing MySQL on Unix/Linux Using Generic Binaries Oracle provides a set of binary distributions of MySQL. These include binary distributions in the form of compressed tar files (files with a .tar.gz extension) for a number of platforms, as we…

Karma 是 Goolge 开源的一个 Test runner, 可以配合 Grunt 使用. 1. 相关插件介绍 1.1 Karma 的官网 http://karma-runner.github.io/ 官网中的文档其实分多钟版本,不同版本的 karma 使用也有所不同,注意页面右上角的版本信息. 1.2 配合 Grunt 的插件 grunt-karma https://github.com/karma-runner/grunt-karma 1.3 karma 用来启动 chrome 的 k…

最近在为下一个项目做前端技术选型,Angular是必须要用的(BOSS指定,个人感觉也不错,开发效率会很高).由于需要加载的JS很多,所以打算看看angular和requirejs一起用会怎么样.在git上有一个模板加<angular-requirejs-seed>,这个对angular和requirejs结合有很好的指导.但是他把karma的单元测试js放在项目中了,我更喜欢放在test目录下. 由于为linux下没有截图工具,就手打了.求Linux下好用的截图工具分享.要用karma测试首…

目前,公司技术规划要求未来所有的服务要全面实现异步化接口,使得每个服务能达到1万/秒的单机性能.我们知道,在一个服务请求中,可能会调用其他服务,还会使用memcache.kv以及mysql等.目前,大众点评的使用的服务框架.kv和cache框架均有异步化调用的接口,但是唯独缺少异步调用数据库的框架支持.这就意味着,如果业务代码一旦其他的请求都异步化了,但是唯独数据库还是同步的,那么就没有达成完全的异步化.在这种情况下,就要求必须有异步化数据库调用的框架支持.zebra-dao就是在这种情况下开发…

前文简介:我们抽象类路由规则的对象,RouteBase是路由对象的抽象基类,ASP.NET 的路由系统中有唯一一个从RouteBase继承的路由对象,那就是Route类型了.我们注册了路由对象Route,UrlRoutingModule截获请求,把当前请求的Url地址和RouteTable路由表中注册的路由对象一个一个的比较,如果没有找到就返回Null,请求就到此终止了.如果有匹配的路由对象,选择第一个匹配的Route对象,并且根据该Route对象,生成了路由数据RouteData对象,本对象是…

我们在上一篇文章中介绍Controller激活系统中所涉及到的一些类型,比如有关Controller类型的相关定义类型就包括了IController类型,IAsyncController类型,ControllerBase抽象类型和我们最终要使用的抽象类型Controller,这是ASP.NET MVC 框架中和Controller本身定义相关的类型.其他辅助类型,包括管理Controller的类型ControllerFactory,这个工厂负责Controller的生产和销毁.我们还涉及到另一个…

这个对象方法可以用来异步观察对javascript对象的改动: // Let's say we have a model with data var model = {};   // Which we then observe Object.observe(model, function(changes)  {     // This asynchronous callback runs     changes.forEach(function(change)  {         // Let…

4.1. Using Spring for Apache Kafka This section offers detailed explanations of the various concerns that impact using Spring for Apache Kafka. For a quick but less detailed introduction, see Quick Tour for the Impatient. 4.1.1. Configuring Topics If…

第二篇 界面开发 第5章 探索界面UI元素 ●The Android View Class     ●△Widget设计步骤 需要修改三个XML,以及一个class: 1)第一个xml是布局XML文件(如:main.xml),是这个widget的.一般来说如果用这个部件显示时间,那就只在这个布局XML中声明一个textview就OK了. 2)第二个xml是widget_provider.xml,主要是用于声明一个appwidget的.其中,Layout就是指定上面那个main.xml. 3)第三…

一 前言 本文主要对ES6的Promise进行一些入门级的介绍.要想学习一个知识点,肯定是从三个方面出发,what.why.how.下面就跟着我一步步学习吧~ 二 什么是Promise 首先是what.那么什么是Promise呢? 以下是MDN对Promise的定义 The Promise object is used for asynchronous computations. A Promise represents a single asynchronous operation that…

转自:http://www.androiddesignpatterns.com/2013/08/fragment-transaction-commit-state-loss.html The following stack trace and exception message has plagued StackOverflow ever since Honeycomb's initial release: java.lang.IllegalStateException: Can not per…

SensAble Technologies公司是3D可触摸(力反馈)解决方案和技术领域中的领先开发商,其解决方案和技术不仅使用户能够看到并听到屏幕计算机应用,还可以对该应用进行实际“感应”.该公司的PHANTOM系列触觉与力反馈交互设备能使用户接触并操作虚拟物体.其触觉技术广泛应用于诸多领域,包括外科手术模拟.牙科整形.虚拟装配与虚拟维修.3D 设计(艺术和雕塑),以及机器人遥操作等领域. 使用官方提供的OpenHaptics Toolkit可以方便的编写基于Phantom触觉力反馈设备的应用程…