C Memory Management in Embedded Systems

I have to use c/asm to create a memory management system since malloc/free don't yet exist. I need to have malloc/free! I was thinking of using the memory stack as the space for the memory, but this would fail because when the stack pointer shrinks, ugly things happen with the allocated space. 1) Where would memory be allocated? If I place it randomly in the middle of the Heap/Stack and

C嵌入式系统中的内存管理

由于malloc / free还不存在,我不得不使用c / asm来创建内存管理系统。 我需要有malloc / free! 我正在考虑使用内存堆栈作为内存空间,但这会失败,因为当堆栈指针缩小时,分配的空间会发生难看的事情。 1)内存分配在哪里 ? 如果我将它随机放置在堆/堆栈的中间并且堆/堆栈扩展,将会与分配的空间发生冲突! 12什么是最简单/最干净的内存管理解决方案? 这些是我研究过的唯一选项: 一个内存堆栈,其中malloc增长堆

Stack and heap in c sharp

Possible Duplicate: Why are structs stored on the stack while classes get stored on the heap(.NET)? Can anyone tell me that how the allocation of memory is done that which object is to be stored in stack and which to be in heap portion of the memory? 3 rules of thumb: Objects are stored on the heap . These include instances of reference-types and boxed value-types. Local variables and

堆叠和堆在C锐利

可能重复: 为什么当类存储在堆(.NET)中时,堆栈存储在堆栈中? 任何人都可以告诉我内存的分配是如何完成的:哪个对象将被存储在堆栈中,哪个对象位于内存的堆部分? 3经验法则: 对象存储在堆上 。 这些包括引用类型和装箱值类型的实例。 局部变量和参数存储在堆栈中 。 对于本地值类型,这意味着该值本身存储在堆栈中。 对于本地引用类型,只有引用会出现在堆栈上(编辑:由Eric Lippert记录的异常 - 值类型局

running compact framework code on desktop computer

I made an application for Windows Compact Framework 3.5 , which appears to work fine. After compilation a .exe file is created on my computer. Until recently, I could actually also run this exe file on my computer . (without the use of a simulator) But recently I noticed that my application only runs on mobile devices. When I try to run it on my desktop computer I receive a strange error m

在台式机上运行紧凑的框架代码

我为Windows Compact Framework 3.5创建了一个应用程序,该应用程序看起来工作正常。 编译后,我的电脑上创建了一个.exe文件。 直到最近,我实际上也可以在我的电脑上运行这个exe文件 。 (不使用模拟器) 但最近我注意到我的应用程序只能在移动设备上运行。 当我尝试在桌面计算机上运行它时,收到一条奇怪的错误消息, 指示我应该使用Main()方法的[STAThread]指令运行我的应用程序。 但是,对于我的移动设备,这不是必

Async/await as a replacement of coroutines

I use C# iterators as a replacement for coroutines, and it has been working great. I want to switch to async/await as I think the syntax is cleaner and it gives me type safety. In this (outdated) blog post, Jon Skeet shows a possible way to implement it. I chose to go a slightly different way (by implementing my own SynchronizationContext and using Task.Yield ). This worked fine. Then I re

异步/等待作为协程的替代

我使用C#迭代器作为协程的替代品,并且它一直在努力工作。 我想切换到异步/等待,因为我认为语法更清晰,它给我类型安全。 在这个(过时的)博客文章中,Jon Skeet展示了一种实现它的可能方式。 我选择了稍微不同的方式(通过实现我自己的SynchronizationContext并使用Task.Yield )。 这工作得很好。 然后我意识到会有一个问题; 目前协程并不需要完成运行。 它可以在收益率的任何点优雅地停止。 我们可能有这样的代

Using async/await for multiple tasks

I'm using an API client that is completely asynchrounous, that is, each operation either returns Task or Task<T> , eg: static async Task DoSomething(int siteId, int postId, IBlogClient client) { await client.DeletePost(siteId, postId); // call API client Console.WriteLine("Deleted post {0}.", siteId); } Using the C# 5 async/await operators, what is the correct/most efficient w

使用异步/等待多个任务

我正在使用完全异步的API客户端,即每个操作都返回Task或Task<T> ,例如: static async Task DoSomething(int siteId, int postId, IBlogClient client) { await client.DeletePost(siteId, postId); // call API client Console.WriteLine("Deleted post {0}.", siteId); } 使用C#5 async / await运算符,启动多个任务并等待它们全部完成的正确/最有效的方法是什么? int[] ids = new[] { 1, 2, 3, 4, 5 }; P

HttpClient.GetAsync(...) never returns when using await/async

Edit: This question looks like it might be the same problem, but has no responses... Edit: In test case 5 the task appears to be stuck in WaitingForActivation state. I've encountered some odd behaviour using the System.Net.Http.HttpClient in .NET 4.5 - where "awaiting" the result of a call to (eg) httpClient.GetAsync(...) will never return. This only occurs in certain circumst

HttpClient.GetAsync(...)在使用await / async时永远不会返回

编辑:这个问题看起来可能是同样的问题,但没有回应... 编辑:在测试用例5中,任务看起来停留在WaitingForActivation状态。 我在.NET 4.5中使用System.Net.Http.HttpClient时遇到了一些奇怪的行为 - 其中“等待”(例如) httpClient.GetAsync(...)调用的结果将永远不会返回。 这仅在使用新的异步/等待语言功能和任务API时的某些情况下才会发生 - 代码在仅使用延续时似乎总能工作。 下面是一些重现问题的代码 - 在Visual S

CAB auto update on Windows Mobile 6.5

I'm developing an auto update feature for my Windows Mobile 6.5 .NET CF 3.5 application. I haev ended up with following solution. I use SOAP WebService to check whether a new version of application is available. If there is a newer version, I get the URL in SOAP response, download it. The new version is simply a CAB full installation file. As soon as the version is downloaded i call w

Windows Mobile 6.5上的CAB自动更新

我正在为我的Windows Mobile 6.5 .NET CF 3.5应用程序开发自动更新功能。 我已经结束了以下解决方案。 我使用SOAP WebService来检查是否有新版本的应用程序可用。 如果有更新的版本,我可以在SOAP响应中获取URL,并下载它。 新版本只是一个CAB完整安装文件。 只要下载了版本,我就在下载的CAB上使用/ silent和/ noui参数调用wceload。 我想要无人值守的安装,因为此应用程序的用户是汽车驾驶员,他们在操作移动设备方面

CORS enabled Web API fails to add header

I am using the DynamicPolicyProviderFactory as described here. Below is my version of the DynamicPolicyProviderFactory: public class DynamicPolicyProviderFactory : ICorsPolicyProviderFactory { private readonly HashSet<Regex> _allowed; public DynamicPolicyProviderFactory(IEnumerable allowedOrigins) { _allowed = new HashSet<Regex>(); foreach (string patte

启用CORS的Web API无法添加标题

我正在使用这里描述的DynamicPolicyProviderFactory 。 以下是我的DynamicPolicyProviderFactory版本: public class DynamicPolicyProviderFactory : ICorsPolicyProviderFactory { private readonly HashSet<Regex> _allowed; public DynamicPolicyProviderFactory(IEnumerable allowedOrigins) { _allowed = new HashSet<Regex>(); foreach (string pattern in allowedOrigins.Ca

Json.Net DeserializeObject failing with OData.Delta

This problem is affecting my ASP.Net WebApi Patch method which looks a lot like this: public MyModel Patch(int id, [FromBody]Delta<MyModel> newRecord){/*stuff here*/} But it's not WebApi that's the problem - the failure is between Json.Net and OData.Delta. The problem is JsonConvert.DeserializeObject does not see integers of OData.Delta objects and I'm wondering if there'

Json.Net DeserializeObject与OData.Delta失败

这个问题正在影响我的ASP.Net WebApi Patch方法,它看起来很像这样: public MyModel Patch(int id, [FromBody]Delta<MyModel> newRecord){/*stuff here*/} 但这不是WebApi,这是问题 - 失败在Json.Net和OData.Delta之间。 问题是JsonConvert.DeserializeObject没有看到OData.Delta对象的整数,我想知道是否有我可以应用的解决方法或修复。 更新:在Json.Net库中已经编写了代码(请参见下面的内容)来解决这个问题。

How do you ignore Whitespace when using CsvHelper, CsvReader.Read()?

When using the CsvHelper library and in particular the CsvReader.Read() function, is there a way to ignore blank records and/or whitespace? I need to return the raw string[] but was hoping, I could do some cleanup functions when parsing with the library. I've checked Github and CsvReader.Read() seems to use SkipEmptyRecords but this doesn't work for me as I have whitespace. Here'

如何在使用CsvHelper,CsvReader.Read()时忽略空白空间?

当使用CsvHelper库,特别是CsvReader.Read()函数时,有没有办法忽略空白记录和/或空白? 我需要返回原始string[]但希望,我可以做一些清理功能时,解析库。 我检查过Github和CsvReader.Read()似乎使用SkipEmptyRecords,但这对我来说不起作用,因为我有空白。 这是我的csv文件,它以UTF8编码,没有BOM。 我试过ASCII编码,以防万一我错过了一些东西,但那也不起作用。 如果没有人知道我会与Josh聊天,并提交一个修复Gi