Endianness and Socket Programming in C

I'm making a program that communicate with certain patient monitor using C sockets. I'm using connection-less sockets (UDP) to communicate with the device. But there is endianness mis-match between my computer and device and so far I was doing this to get parse response from the patient monitor: recvfrom(int socket, char *buffer, size_t length, int flags, struct sockaddr *

C语言中的字节顺序和Socket编程

我正在制作一个程序,使用C套接字与某个患者监视器进行通信。 我正在使用无连接套接字(UDP)与设备进行通信。 但是我的电脑和设备之间存在排序不匹配,到目前为止,我正在这样做,以便从患者监视器获得分析响应: recvfrom(int socket, char *buffer, size_t length, int flags, struct sockaddr *address, socklen_t *address_len); 然后我直接将缓冲区转换为结构并使用ntohs和ntohl来更改字节顺序,例如: s

Adding Areas to an MVC application

I have an ASP.net MVC application that has been in Production for a while. I would like to add a new Admin section to the application which I wanted to do by creating a new Area. I'm just curious what sorts of things I might need to be aware of when adding this new area. Specifically: Is there any existing functionality that is likely to break by adding the new Area? What is the best

将区域添加到MVC应用程序

我有一段已在生产中的ASP.net MVC应用程序。 我想通过创建一个新的区域来添加一个新的管理部分到我想要做的应用程序。 我只是好奇在添加这个新区域时可能需要注意哪些事情。 特别: 是否有任何现有的功能可能通过添加新的Area来破解? 将某个区域限制到某个特定组的最佳方式是什么? 基础控制器类? 任何其他事情(常见错误等),我需要知道添加一个新的区域会影响? 需要注意的一件事是命名冲突 - 如果您有两个名

Controller wrapping in panel

I have a panel with buttons. my buttons are create dynamically. I want to have 4 rows with 4 buttons each. but I only get one row. foreach (CategoriesDataSet.CategoriesRow category in DataRepository.Categories.Categories) { if (!category.CategoryName.Equals("ROOT")) { SimpleButton button = new SimpleButton(); button.Text = categ

控制器包裹在面板中

我有一个按钮面板。 我的按钮是动态创建的。 我想要4行,每个4个按钮。 但我只得到一行。 foreach (CategoriesDataSet.CategoriesRow category in DataRepository.Categories.Categories) { if (!category.CategoryName.Equals("ROOT")) { SimpleButton button = new SimpleButton(); button.Text = category.CategoryName; button.Tag =

Missing something or do I just not understand epoll?

Full disclosure, I'm a student and this is an assignment. I've been working on it for over a week almost non-stop (in addition to previous time spent) and I can't figure out what I'm doing wrong. My server keeps hanging on epoll_wait after only a "few" recvs are done ("few" because I'm anticipating several GB of data and I'm getting only a few dozen M

缺少某些东西或者我只是不理解epoll?

充分披露,我是一名学生,这是一项任务。 我一直在努力工作一个星期几乎不停(除了以前的时间),我无法弄清楚我做错了什么。 我的服务器在完成“少量”recv之后仍然挂在epoll_wait上(“很少”,因为我预计有几GB的数据,而且只有几十MB)。 我不认为我的客户端的工作方式有什么问题,因为它对我的选择和多线程服务器来说工作得很好。 请快速浏览一下,让我知道是否有任何事情因为我的问题而出现在你身上。 客户端/服务器的基

Keeping the FlowDocument cursor centered vertically in the RichTextBox

I am having a bit of trouble figuring this one out, hopefully someone can help. I have a WPF project with a RichTextBox. As I edit the text, I would like the cursor in document to always stay centered vertically. For example as a push up or down while editing, rather than the cursor going up, I would like the text to come down. This should result in the impression of the cursor staying sti

保持RichTextBox中垂直居中的FlowDocument游标

我有一些麻烦找出这个问题,希望有人可以提供帮助。 我有一个RichTextBox的WPF项目。 当我编辑文本时,我希望文档中的光标始终保持垂直居中。 例如,在编辑时按下或上移,而不是光标上移,我希望文本下降。 这应该导致光标停留的印象。 非常感谢。 不知道这是否是您的想法,但这里是RichTextBox的一个概念证明,它使插入符号位于用户放置它的位置(点击框中)。 虽然Omkar说如果文档已经滚动到开始或结束时需要添加

Run process under current user

There is "Setup project" in VS. During installation I launch another process: System.Diagnostics.Process process = new System.Diagnostics.Process(); //fill StartInfo and run call Start() process.Start(); If I run installer under Windows 7 and install for "Everyone", process start under the SYSTEM. If I install "Just for me", process start under Current user. How

在当前用户下运行进程

VS中有“安装项目”。 在安装期间,我启动另一个过程 System.Diagnostics.Process process = new System.Diagnostics.Process(); //fill StartInfo and run call Start() process.Start(); 如果我在Windows 7下运行安装程序并为“Everyone”安装,则在SYSTEM下启动进程。 如果我安装“Just for me”,则在当前用户下启动进程。 我如何始终在当前用户下开始处理? 我找到了非常简单的解决方案。 所有你需要的只是创建一个新的类

Secondary axis labels not working?

Okay so I have a datetime x-axis on an MSChart. I want to plot months below the first of each month and years below the change of a year. Here's what I have so far: for (int i = 0; i < rdate.Length -1 ; i++) { if (rdate[i].Day == 01 && set == 0) chart1.ChartAreas[0].AxisX.CustomLabels.Add( rdate[i].AddDays(-20).ToOADate(), rdate[i].AddDays(20).ToOADate(),

辅助轴标签不起作用?

好吧,我在MSChart上有一个日期时间x轴。 我想绘制每个月的第一个月以下的年份和低于一年的变化的年份。 这是我迄今为止的: for (int i = 0; i < rdate.Length -1 ; i++) { if (rdate[i].Day == 01 && set == 0) chart1.ChartAreas[0].AxisX.CustomLabels.Add( rdate[i].AddDays(-20).ToOADate(), rdate[i].AddDays(20).ToOADate(), Convert.ToString(rdate[i].ToString("MMMM")), 1, Lab

NHibernate is producing SQL with a bad join

I have an NHibernate Linq query which isn't working how I would expect. The problem seems to come from using a nullable int column from a left joined table in the where clause. This is causing the join to act like an inner join. var list = this.WorkflowDiaryManager.WorkflowActionRepository.All .Fetch(x => x.CaseView) .Fetch(x => x.WorkflowActionType) .ThenFetchMany(x =&g

NHibernate正在生成一个加入不好的SQL

我有一个NHibernate的Linq查询,这是不工作的,我期望如何。 该问题似乎来自where子句中左连接表中的可空int列。 这导致连接像内连接一样工作。 var list = this.WorkflowDiaryManager.WorkflowActionRepository.All .Fetch(x => x.CaseView) .Fetch(x => x.WorkflowActionType) .ThenFetchMany(x => x.WorkflowActionPriorityList) .Where(x => x.AssignedUser.Id == userId || x.CaseView.Moos

Terminology when Initializing C Structures

This will be an easy question but googling around does not seem to provide me with an answer. The way I understand it in C we have two ways to initialize a foo object, when foo is a structure. Look at the code below for an example typedef struct foo { int var1; int var2; char* var3; }foo; //initializes and allocates a foo foo* foo_init1(int v1,int v2,const char* v3) { if(..some ch

初始化C结构时的术语

这将是一个简单的问题,但用Google搜索似乎并没有给我提供答案。 我在C中理解它的方式有两种方法来初始化一个foo对象,当foo是一个结构时。 以下面的代码为例 typedef struct foo { int var1; int var2; char* var3; }foo; //initializes and allocates a foo foo* foo_init1(int v1,int v2,const char* v3) { if(..some checks..) return 0; foo* ret = malloc(sizeof(foo)); ret->var1 = v1;

SQL Parameters and Question Marks

I am making the switch from classic ASP to ASP.NET. And I am having some trouble doing some basic stuff that I used to do easily with the old method. Below is a handy ASP function that I used to execute scalar queries with a few lines. FUNCTION ExecuteScalarParams(SQLQuery, Parameter_Array) Set cmd1 = Server.CreateObject("ADODB.Command") cmd1.ActiveConnection = con cmd1.CommandText = SQLQuer

SQL参数和问号

我正在从传统的ASP切换到ASP.NET。 我在做一些基本的东西时遇到了一些麻烦,我曾经很容易用旧的方法做。 下面是我用来用几行执行标量查询的方便的ASP函数。 FUNCTION ExecuteScalarParams(SQLQuery, Parameter_Array) Set cmd1 = Server.CreateObject("ADODB.Command") cmd1.ActiveConnection = con cmd1.CommandText = SQLQuery cmd1.CommandType = 1 FOR ParamCount = 0 TO UBOUND(Parameter_Array) cmd1.Parameter