native

How to configure .net native in Visual Studio 2015?

由 旧时模样 提交于 2020-01-01 08:03:25
问题 I read this guide for .net native, but I can't found 'Enable for .net native' in popup menu. Should I install some extra plugin for VS2015 for compile with .net native? 回答1: [ This is the Project + Properties, Build tab of a project that was created with one of the Project > New > Visual C# > Windows > Universal project templates. Your machine must boot Windows 10, you may need to download the SDK separately if you installed VS2015 before Win10. Red arrows indicate the important parts, it

Why would native code called from .net give different result from calling it from a native program?

由 我怕爱的太早我们不能终老 提交于 2020-01-01 07:25:07
问题 We've got a native library which we use to perform security related tasks for us. We've written an interop library so that we can use it from .NET. We've got two test applications, the first application is written in C++ (unmanaged) and the second is written in C#. They generate the exact same sequence of calls to the native library, but produce different results. I'm lost and can't find any apparent mistake in the .NET import definitions. I've already dumbed it down so that I only work with

How do I debug a native code project from inside a managed code project? C++/C#

由 倾然丶 夕夏残阳落幕 提交于 2020-01-01 05:36:15
问题 How do I debug a native code project from inside a managed code project? I am using C# to call C++ code and need to debug the C++ code. Otherwise, I must exit out of the project, open the C++ project, create a tester and then debug the code. This is horrible. 回答1: Add your c++ project to the solution containing your C# code In the C# project properties pages, under the debug tab Check "Enable unmanaged code debugging" If that doesn't work you also need to open the Options dialog from either

java内存结构

由 ♀尐吖头ヾ 提交于 2020-01-01 02:54:14
本文转自： http://www.blogjava.net/nkjava/archive/2012/03/14/371831.html 1.2.1 程序计数器 计数器记录的是正在执行的虚拟机字节码指令的地址 1.2.2 栈 局部变量表、操作栈、动态链接、方法出口等信息 1.2.3 本地方法栈 虚拟机栈为虚拟机执行Java 方法（也就是字节码）服务 1.2.4 Java 堆 1.2.5 方法区 类信息、常量、静态变量、即时编译器编译后的代码等数据（非堆） 1.2.6 运行时常量池 运行时常量池（Runtime Constant Pool）是方法区的一部分，用于存放编译期生成的各种字面量和符号引用，这部分内容将在类加载后存放到方法区的运行时常量池中。 1.2.7 直接内存 直接内存（Direct Memory）并不是虚拟机运行时数据区的一部分，也不是Java虚拟机规范中定义的内存区域，（在JDK 1.4 中新加入了NIO（New Input/Output）类，引入了一种基于通道（Channel）与缓冲区（Buffer）的I/O 方式，它可以使用Native 函数库直接分配堆外内存，然后通过一个存储在Java 堆里面的DirectByteBuffer 对象作为这块内存的引用进行操作。这样能在一些场景中显著提高性能，因为避免了在Java 堆和Native 堆中来回复制数据。） 1.1

How to include native library on maven's java.library.path variable

由 ＊爱你＆永不变心＊ 提交于 2020-01-01 02:28:26
问题 I am trying to use JNotify for my application , which has the following requirements JNotify can be tested by simply running the jar file with the followng commend: java -Djava.library.path=. -jar jnotify-VER.jar [dir] JNotify will then monitor the specified dir (or the current directory if dir is not specified) and print detected events. Note that java.library.path should point to the location of the native libraries that comes with jnotify (dlls, so dylibs etc). But trying to get the same

Can i stop the malicious reading the class files via “java.io” function,with NATIVE code(tool)?

由 只愿长相守 提交于 2019-12-31 07:34:13
问题 we'd defend against the code crackers who can operate on the whole operation system who may read the encoded class-file via "java.io" and save the copy we'd protect java-based application's intellectual property this requirement was raised by several customers, so it has realistic value. Simplex Java-JDK-JVM solution like securityManager without native code/tool can NOT be accepted because it's easy to be bypassed, since cracker have the admin privilege on the OS in this scenario. 回答1: You

Linking error while in C++/CLI project while wrapping C++ shared library

由 本小妞迷上赌 提交于 2019-12-31 05:37:24
问题 I am trying to wrap C++ library to that managed projects can use it. The third party library I am using is a shared library. It's meant to link on load time. I have header files, .lib file which is DLL import library and .DLL file. This is what I did so far:- 1. Created CLR project. 2. Added path for header file in C/C++->General->Additional Include Directories 3. Set 'Additional Library Directories' in Linker->General. 4. Added lib name in Linker->Input->Additional Dependencies After I do

Accessability of native sensors in Nativescript

由 ＊爱你＆永不变心＊ 提交于 2019-12-31 05:15:08
问题 I am the decision of choosing to implement an app in either Nativescript (Cross platform IOS/Android) or doing a 'real' native app with java/swift accordingly. Discarding the obvious 1 codebase vs 2 codebase discussion, I am uncertain of the limitations of Nativescript, if any. The main concern lies in the app's heavy demand for sensor data. I have to use a lot of the phone sensors in the app. Sensors like the android sensors. I get mostly what Nativescript does. But the question is, will

java.lang.UnsatisfiedLinkError in Linux

由 ▼魔方 西西 提交于 2019-12-31 00:50:30
问题 I've managed to get into a linux machine to try the HotKey library suggested in this answer. I've compiled the sample code and now I run the program and I've got the following message: [oracle@machine jxgrabkey-0.2.1_i386]$ java -classpath lib/JXGrabKey.jar:Example JXGrabKeyTest Exception in thread "main" **java.lang.UnsatisfiedLinkError:** /home/oracle/javasample/jxgrabkey-0.2.1_i386/lib/libJXGrabKey.so: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required by /home/oracle

C# deezer native api: adapting to C#

由 社会主义新天地 提交于 2019-12-30 14:18:11
问题 I'm trying to use a C# class that wraps C++ native api into CLI C# class. It seems that there are some problems (it really near to be working) and would like some help to find the problem. Here is the wrapper's code using System; using System.Collections; using System.Runtime.InteropServices; // make this binding dependent on WPF, but easier to use using System.Windows.Threading; // http://www.codeproject.com/Articles/339290/PInvoke-pointer-safety-Replacing-IntPtr-with-unsaf namespace Deezer
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