1. Introduction. 1.1 I have previously written about exchanging SAFEARRAYs of managed structures with unmanaged code via COM interop. 1.2 In this new series of articles, I shall expound on the exchange of such SAFEARRAYs via P/Invoke. 1.3 I have arra…

1. Introduction. 1.1 Starting from part 4 I have started to discuss how to interop marshal a managed array of TestStructure structs that is contained within a structure. 1.2 We have seen in part 4 an example for marshaling such a container structure…

1. Introduction. 1.1 In part 4, I have started to discuss how to interop marshal a managed array that is contained within a structure. 1.2 I have given a specific working example for marshaling such a container structure to unmanaged code "one way&qu…

1. Introduction. 1.1 In parts 1 through 3 of this series of articles, I have thoroughly discussed the techniques for exchanging arrays between managed and unmanaged code by way of SAFEARRAYs. 1.2 The knowledge that can be gained from the first 3 part…

1. Introduction. 1.1 In part 1 of this series of articles, I demonstrated how to transfer managed arrays to unmanaged code as SAFEARRAYs. The transfer was single-directional "into" the unmanaged function and the SAFEARRAY that was passed to the…

1. Introduction. 1.1 In part 1 of this series of articles, I explained how managed arrays may be transferred to unmanaged code as a SAFEARRAY. 1.2 In part 1, the SAFEARRAY was passed to unmanaged code as an "in" (read-only) parameter. 1.3 Here i…

1. Introduction. 1.1 In part 1 of this series of blogs we studied how to pass a managed structure (which contains strings) to unmanaged code. The structure was passed as an "in" (by-value) parameter, i.e. the structure was passed to the unmanage…

1. Introduction. 1.1 Managed structures that contain strings are a common sight. The trouble is that managed strings are non-blittable. This means that they do not have a single common representation in the unmanaged world. However, there are several…

1. Introduction. 1.1 In part 1 of this series of blogs we studied how to pass a managed structure (which contains strings) to unmanaged code. The structure was passed as an "in" (by-value) parameter, i.e. the structure was passed to the unmanage…

Silverlight If the target managed property or input parameter is strongly typed (that is, not typed as an object), Silverlight attempts to convert the JavaScript object to the corresponding .NET Framework object. If the conversion fails (because of m…

PInvoke 允许managed code 来调用在DLL中实施的unmanged function. Platform invoke relies on metadata to locate exported functions and marshal their arguments at run time. The following illustration shows this process. A platform invoke call to an unmanaged DLL fu…

一.libevent标准使用方法: 每个程序使用Libevent必须include <event2/event.h> 头文件,并 传给 -levent  链接器.如果只是想使用主要的event和buffered IO-based code,不想链接任何协议代买,使用链接 -levent_core. 二.安装库设置 在调用Libevent其他函数时,需要设置库.例如在应用中使用多线程,需要先初始化线程支持,使用evthread_use_pthreads() or evthread_use_win…

http://www.christian-etter.de/?p=771 In .NET, RSACryptoServiceProvider greatly simplifies common tasks associated with public/private keys, such as signing of data and verifying a signature.Unfortunately, there is only a single format (proprietary XM…

本文是上一篇文章的兄弟篇,上篇文章介绍了客户端的sdk中如何基于JAVA/PHP/C#使用RSA私钥签名,然后服务端基于JAVA使用RSA公钥验签,客户端签名/服务端验签的模式只能帮助服务端检查客户端来的请求数据是否被篡改,同样的,客户端也需要对服务端的返回结果检查是否被篡改,因此就引出了本片文章. Java版的验签和加签均已在上一篇文章中分析过,客户端和服务端的逻辑是一样的,此处不再赘述.下面重点分析如何基于RSA的PEM文件,使用php和c#进行验签. 1.php验签 function ve…

获取支付凭据 /// <summary> /// 获取支付凭据 /// </summary> /// <param name="model"></param> /// <returns></returns> [HttpPost] [IsLoginAuthorizeAttribute] public MessagesDataCode<string> GetPaymentCredential([FromBo…

最近工作需要将对方公司生成的RSA加密公钥进行明文加密和解密,发现了几点贴出来做个笔记. RSA单次加密是有长度限制!微软封装的加密方法如果出现长度超出指定范围的话报错是直接报“该项不适于在指定状态下使用”... 如需加密只能分段加密! 直接将现在使用的封装类贴出来吧. 新建一个类,里面有很多扩展函数 using System; using System.Collections.Generic; using System.Linq; using System.Text; using System…

refer:http://research.swtch.com/interfaces Go Data Structures: Interfaces Posted on Tuesday, December 1, 2009.   Go's interfaces—static, checked at compile time, dynamic when asked for—are, for me, the most exciting part of Go from a language design…

Parallel Performance Optimize Managed Code For Multi-Core Machines Daan Leijen and Judd Hall This article discusses: Task Parallel Library Parallel.For versus ThreadPool Static Work Distribution Futures This article uses the following technologies: P…

Tekla Structures 2016 已经发布了,使用了 Ribbon 的全新 UI 风格,比以前要漂亮许多. 不过功能方面貌似没啥大的改进,感觉天宝的主要精力都投入到了混凝土模块上,忙着和别人抢蛋糕呢. 言归正传,以下是我整理的 Tekla Structures 使用的类库,欢迎感兴趣的朋友围观指正. Tekla 类库 Akit5.dll - Akit5Analysis.dll - Tekla Structures AnalysisBrepStorageInterface.dll - T…

简化dba的管理操作 1:启用 omf 23:16:04 SYS@orcl> show parameter DB_CREATE_FILE_DEST NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_create_file_dest string 23:16:17 SYS@orcl> select distinct t1.name,t2.name d…

托管和非托管转换新方法:Marshaling Library(zz) 托管和非托管转换新方法:Marshaling Library(zz) http://hi.baidu.com/superql/blog/item/38e9c8073202fcc37a8947ac.html 1.VC++2008中新增加的库:Marshaling Library 我们一起讨论一下VC++2008中引入的新库——Marshaling Library.在这个类库之前我们使用的传统方法是固定指针(pin_ptr).要使…

An approach is provided in a hypervised computer system where a page table request is at an operating system running in the hypervised computer system. The operating system determines whether the page table request requires the hypervisor to process.…

DataType A primitive OpenCV data type is one of unsigned char, bool,signed char, unsigned short, signed short, int, float, double, or a tuple of values of one of these types, where all the values in the tuple have the same type. 类型的命名格式: CV_<bit-dept…

转载.节选于 https://dev.mysql.com/doc/refman/8.0/en/innodb-in-memory-structures.html InnoDB Architecture The following diagram shows in-memory and on-disk structures that comprise the InnoDB storage engine architecture. For InnoDB: The name of the data fi…

摘要 : NetExt中有两个比较常用的命令可以用来分析heap上面的对象. 一个是!wheap, 另外一个是!windex. !wheap 这个命令可以用于打印出heap structure信息. heap 上 object汇总后的信息. 这个命令也可以按照一些条件过滤出objects, 不过执行速度比较慢. 在这一点上, 更推荐!windex.!windex是一个非常常用的命令. 这个命令可以用来查找heap上面实现某个interface, 继承某个abstract class 或者clas…

转自:https://tls.mbed.org/kb/cryptography/asn1-key-structures-in-der-and-pem Introduction Everybody loves PEM and the very documented ASN.1 structures that are used in saving cryptographic keys and certificates in a portable format. Well.. Everybody wo…

A library of generic data structures including a list, array, hashtable, deque etc.. https://github.com/srdja/Collections-C…

"I worked up a full implementation as well but I decided that it was too complicated to post in the blog. What I was really trying to get across was that immutable data structures were possible and not that hard; a full-on finger tree implementation…

原创地址:http://www.cnblogs.com/jfzhu/p/4007472.html 转载请注明出处 (一)Windows服务使用的登陆帐号 Windows服务只有登录到某一帐户的情况下才能访问操作系统中的资源和对象.服务一般不要更改默认的登录帐户,否则可能导致服务失败.如果选定帐户没有足够的权限,Microsoft 管理控制台(MMC)的服务管理单元将自动为该帐户授予登录所管理计算机中服务的用户权限.Windows Server 的服务可以用域帐户或者三个内置的本地帐户作为各系统服…

最近在项目上遇到一个问题,需要能够在程序中获取Lync会议的链接地址.Lync是微软出品的一套即时通信(IM)客户端软件,配合Microsoft Lync Server使用,其前身是Microsoft Office Communicator(MOC).与Live Messenger相比,Lync更适合企业内部使用,因为它还具备一定的与企业级应用组件进行整合的功能.在Microsoft Office 2010/2013中,Lync已成为Office中的一个套件. 在企业内部使用Outlook和Ly…