writing a glibc api for a system call

Possible Duplicate: Need help with glibc source I understand how to implement our own system calls in linux kernel. I know we can call this with syscall() or with _asm() in ac program. But I want to understand how to write glibc api for this new system call?. How the open() and read() glibc function calls mapping into system call in kernel?. char message[ ] = "Hello!n"; int main(

为系统调用写一个glibc api

可能重复: 需要glibc源的帮助 我明白如何在Linux内核中实现我们自己的系统调用。 我知道我们可以在ac程序中用syscall()或_asm()来调用它。 但我想了解如何为这个新的系统调用编写glibc api ?. open()和read() glibc函数如何在内核中调用映射到系统调用? char message[ ] = "Hello!n"; int main( void ) { write( 1, message, 7 ); exit( 0 ); } 当我将上述程序转换为汇编时,它正在发送 main

Can I use either EventLog or EventSource for both logging and tracing?

I'm trying to create a simplified API for both logging (errors, warnings, info) and tracing (debug, analytics) to the Windows Event Log so I can use Windows Event Viewer to work with the logs. I found the EventLog class and started coding against it, and it works for logging to the Application log. I can't find any documentation on specifying the log subcategory with this class, though.

我可以使用EventLog或EventSource进行日志记录和跟踪吗?

我正在尝试为日志记录(错误,警告,信息)和跟踪(调试,分析)创建一个简化的API到Windows事件日志,以便我可以使用Windows事件查看器处理日志。 我找到了EventLog类并开始对它进行编码,并且它用于记录到应用程序日志。 尽管如此,我找不到任何有关指定该类的日志子类别的文档。 我需要将跟踪信息推送到分析和调试日志,并且我想让应用程序选择记录的事件是否转到管理或操作日志。 然后我了解了EventSource类,并且MSDN

How can I organize EventSources for the Semantic Logging Application Block?

The Semantic Logging Application Block (SLAB) is very appealing to me, and I wish to use it in a large, composite application I am writing. To use it, one writes a class derived from 'EventSource', and includes one method in the class for each event they want to log as a typed event, vs. a simple string. An application such as mine could have hundreds of such events. I could have an &

如何为语义记录应用程序块组织EventSources?

语义记录应用程序块(SLAB)对我非常有吸引力,我希望将它用在我正在编写的一个大型复合应用程序中。 为了使用它,我们写了一个派生自'EventSource'的类,并且在类中包含一个方法,用于将每个要作为类型事件记录的事件与一个简单的字符串进行比较。 像我这样的应用程序可能会有数百个这样的事件。 我能有一个“EventSource的”基础类只是一个事件,“SomethingHappened”,并通过记录的一切,在努力和准确性频谱的一个极

How to use latest dot net core in Universal Windows Class Library?

I would like to use the latest .NET Core in a new Universal Windows Class Library. However creating a new library in VS2015 the System.Net.Sockets.Socket API does not appear to be updated. In particular I want this commit: https://github.com/dotnet/corefx/pull/4079/files My project.json looks like: { "dependencies": { "Microsoft.NETCore.UniversalWindowsPlatform": "5.0.0" }, "frame

如何在通用Windows类库中使用最新的网点核心?

我想在新的通用Windows类库中使用最新的.NET Core。 然而,在VS2015中创建一个新的库, System.Net.Sockets.Socket API似乎没有更新。 特别是我想要这个提交:https://github.com/dotnet/corefx/pull/4079/files 我的project.json如下所示: { "dependencies": { "Microsoft.NETCore.UniversalWindowsPlatform": "5.0.0" }, "frameworks": { "uap10.0": {} }, "runtimes": { "win10-arm": {}, "

platform C# implementation of Lua

I'm looking for a way to embed Lua into my cross-platform embed application. The problem is - I haven't found any complete, stable, working implementation of Lua on this platform. I've tried the following (here are the list of repositories and their problems): LuaInterface - require me to compile a dll for every platform, unstable, since v2 uses Windows KopiLua - errors, even th

平台C#实现Lua

我正在寻找一种方法将Lua嵌入到我的跨平台嵌入应用程序中。 问题是 - 我还没有在这个平台上找到任何完整,稳定的Lua工作实现。 我试过以下(这里是存储库及其问题列表): LuaInterface - 要求我为每个平台编译一个dll,因为v2使用Windows而不稳定 KopiLua - 错误,甚至他们自己的样本不起作用 AluminiumLua - 依赖于DLL,因此,不是一个实现 NLua - 基于KopiLua并继承了所有问题 UniLua - ...这是为了团结

Why do some C# lambda expressions compile to static methods?

As you can see in the code below, I have declared an Action<> object as a variable. Would anybody please let me know why this action method delegate behaves like a static method? Why does it return true in the following code? Code: public static void Main(string[] args) { Action<string> actionMethod = s => { Console.WriteLine("My Name is " + s); }; Console.WriteLine

为什么一些C#lambda表达式编译为静态方法?

正如你在下面的代码中看到的那样,我已经声明了一个Action<>对象作为变量。 有人请让我知道为什么这个动作方法委托行为像一个静态方法? 为什么它在下面的代码中返回true ? 码: public static void Main(string[] args) { Action<string> actionMethod = s => { Console.WriteLine("My Name is " + s); }; Console.WriteLine(actionMethod.Method.IsStatic); Console.Read(); } 输出:

Defining a lambda expression with an anonymous type contained within that lambda

I'm trying to avoid a dynamic type in my lambda expression for grouping a collection. The type is defined anonymously at compile time (and unambiguously as far as I can tell). I'd rather not define the type as a full-fledged class as I'm only using it a few times in this single method. Sample code: Func<MyData, dynamic> dataGrouping = md => new { md.Property1

用包含在该lambda中的匿名类型定义lambda表达式

我试图避免在我的lambda表达式中用于分组集合的动态类型。 类型在编译时是匿名定义的(并且据我所知可以毫不含糊地定义)。 我宁愿不把类型定义为一个完整的类,因为我在这个单一方法中只使用了几次。 示例代码: Func<MyData, dynamic> dataGrouping = md => new { md.Property1, md.Property2, md.Property3 }; var groupedData = myDataCollection.GroupBy(dataGrouping);

How do I use reflection to invoke a private method?

There are a group of private methods in my class, and I need to call one dynamically based on an input value. Both the invoking code and the target methods are in the same instance. The code looks like this: MethodInfo dynMethod = this.GetType().GetMethod("Draw_" + itemType); dynMethod.Invoke(this, new object[] { methodParams }); In this case, GetMethod() will not return private methods. Wha

我如何使用反射来调用私有方法?

在我的课堂中有一组私人方法,我需要根据输入值动态调用一个方法。 调用代码和目标方法都在同一个实例中。 代码如下所示: MethodInfo dynMethod = this.GetType().GetMethod("Draw_" + itemType); dynMethod.Invoke(this, new object[] { methodParams }); 在这种情况下, GetMethod()不会返回私有方法。 我需要向GetMethod()提供哪些BindingFlags以便它可以找到私有方法? 只需更改代码以使用接受BindingFlags的GetMeth

Printf on data stored as union gives no output after called for double variable

I'm working on program which input looks as follows: 3.14 (it's variable stored in union) 4 (number of calls) int (asked types to return) long float double On output should i get: 1078523331 1078523331 3.140000 0.000000 Full instruction to this task My program works except on double case: instead of giving me any output program gives me none. Can anyone explain

对于存储为union的数据,printf在调用double变量后不会输出

我正在编写程序,其输入如下所示: 3.14(它是可变的存储在工会中) 4(通话次数) int(要求返回的类型) 长 浮动 双 在输出上我应该得到: 1078523331 1078523331 3.140000 0.000000 对此任务的完整说明 我的程序工作除了双案例:而不是给我任何输出程序给我没有。 任何人都能解释我为什么? 这是我的代码。 #include <stdio.h> #include <string.h> #define SIZE 1000 #define CHARL

point underflow in program output

I have done a thorough search but only seem to find explanations of what underflow is, and how it works, rather than ways to represent it. Long story short, I'm writing a program to experiment with integer overflow, floating-point overflow (inf) and underflow -- and outputting the effects of these conditions using the printf function. I've been successful with the first two, but can

在程序输出中出现下溢

我已经做了彻底的搜索,但似乎只能找到下溢的解释,以及它是如何工作的,而不是表示它的方式。 长话短说,我正在编写一个程序来测试整数溢出,浮点溢出(inf)和下溢 - 并使用printf函数输出这些条件的影响。 我已经在前两个方面取得了成功,但由于浮点下溢,似乎无法成功表示一个次正规数。 据我所知,根据系统处理条件的方式,我知道下溢的症状可能是输出中的数字丢失,或舍入为零。 在试图找到最低浮点值时,我查看了fl