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https://www.tsingfun.com/it/os_kernel/663.html 

深入理解 x86/x64 的中断体系 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

... ISR 能正常工作了,我提供了完整的示例源码和磁盘映像下载:interrupt_demo 2. 保护模式下的中断机制 引入保护模式后,情形变得复杂多了,实施了权限控制机制,为了支持权限的控制增添了几个重要的数据结构,下面是与中...
https://bbs.tsingfun.com/thread-2252-1-1.html 

Arduino101(Genuino 101)&App Inventor – RGB LED控制 - 创客硬件开...

...tps://blog.cavedu.com/2017/02/ ... %e6%8e%a7%e5%88%b6/ 本文將介紹如何取得觸碰點的 RGB 參數之後透過 BLE 送給 Arduino 101 來點亮 RGB LED。 App InventorDesigner使用 Canvas 來取得觸碰點座標。兩個連線斷線用的按鈕:Btn_Connect /  Btn_DisConnec...
https://www.tsingfun.com/it/cp... 

libevent对比libev的基准测试 - C/C++ - 清泛网 - 专注C/C++及内核技术

...libevent 每次迭代的总时间增加得快得多,无论客户端数量如何,花费的时间几乎是 libev 的两倍。不过,两者都表现出相似的增长特征。 轮询时间也非常相似,libevent 在 1000-fd 情况下始终较慢,而在 100-fd 情况下,时间几乎相同...
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How can I get the external SD card path for Android 4.0+?

...unt") .redirectErrorStream(true).start(); process.waitFor(); final InputStream is = process.getInputStream(); final byte[] buffer = new byte[1024]; while (is.read(buffer) != -1) { s = s + new String(buffer); } is.close(); ...
https://www.tsingfun.com/it/cpp/1229.html 

boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术

...些知识有过了解 什么是多索引容器?为什么要使用它?如何使用? 接下来一一回答以上的问题。 想必大家在实际开发中一定多多少少会遇到以下的问题,我需要创建一个map,并且需要两种方式去索引,比如:创建一个<学号,...
https://www.tsingfun.com/ilife/tech/228.html 

互联网医疗新格局:顶级医生入场 - 资讯 - 清泛网 - 专注C/C++及内核技术

...、最终解决“看病难”的问题?他们的这些尝试,最终会如何改造互联网医疗的产业格局、以及中国医疗的组织形态?网易科技将继续选取其中的代表性商业模式,推出系列报道。 相关阅读: “体制内医生集团”获千万级融...
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When to use thread pool in C#? [closed]

...onsiderations, I use thread pools for database access, physics/simulation, AI(games), and for scripted tasks ran on virtual machines that process lots of user defined tasks. Normally a pool consists of 2 threads per processor (so likely 4 nowadays), however you can set up the amount of threads you ...
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How to decide font color in white or black depending on background color?

...present a value in hexadecimal (base-16) notation. I won't get into the details of the conversion here, they're easy to look up. Once you have the intensities for the individual colors, you can determine the overall intensity of the color and choose the corresponding text. if (red*0.299 + green*0....
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C++应用程序添加VBScript和JavaScript支持 - C/C++ - 清泛网 - 专注IT技能提升

...C++程序中调用JavaScript及VBScript。效果截图: 源码点此下载。 Introduction I am always amazed to see how the script control (msscript.ocx) is fun to use and at the same time how C++ developers reacted when it's time to use. Maybe the extension (.ocx) make them feel, it's vis...
https://www.tsingfun.com/it/cp... 

C++应用程序添加VBScript和JavaScript支持 - C/C++ - 清泛网 - 专注IT技能提升

...C++程序中调用JavaScript及VBScript。效果截图: 源码点此下载。 Introduction I am always amazed to see how the script control (msscript.ocx) is fun to use and at the same time how C++ developers reacted when it's time to use. Maybe the extension (.ocx) make them feel, it's vis...