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  • C read part of file into cache

    - by Pete Jodo
    I have to do a program (for Linux) where there's an extremely large index file and I have to search and interpret the data from the file. Now the catch is, I'm only allowed to have x-bytes of the file cached at any time (determined by argument) so I have to remove certain data from the cache if it's not what I'm looking for. If my understanding is correct, fopen (r) doesn't put anything in the cache, only when I call getc or fread(specifying size) does it get cached. So my question is, lets say I use fread and read 100 bytes but after checking it, only 20 of the 100 bytes contains the data I need; how would I remove the useless 80 bytes from cache (or overwrite it) in order to read more from the file.

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  • How suitable is a DVCS for the corporate environment?

    - by Matt Brailsford
    I've been using SVN for some time now, and am pretty happy with how it works (but I can't say I'm an expert, and I haven't really done much with branches and merging). However an opportunity has arisen to put in some new practises on a new team and so I thought I'd take a look at DVCSs to see if it's worth making the jump. The company I work for is a pretty standard company where we all work in the same location (or sometimes at home) and we want to keep a central store of all code. My question is: if all you are doing with a DVCS is creating a central hub that everyone pushes their changes to, is there really any benefit to moving to a DVCS and its extra overheads in this sort of environment?

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  • TFS: comparing changesets

    - by Ram
    In TFS we can find "compare" a file between 2 changesets. Is it possible to compare 2 changesets. Say take changeset "r" as reference and compare it with changeset "s" and find the files/folders which were added/removed/delted/edited ?

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  • IOC are at the class level, but what about database conflicts?

    - by mrblah
    With IOC I understand you can substitue implementations out by merely editing a configuration file etc. BUT, what happens when the classes are married to particular database tables and sprocs, you can't just swap out an implementation since the classes/entities are tied to particular tables and stored procedures. Am I right here?

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  • Looking for a source code management system with a good GUI client

    - by Anders Öhrt
    We are currently using CS-RCS Pro for source code management, and are looking for to replace this due to performance issues. It is based on client side file access with no own protocol, which makes it painfully slow to use over a slow VPN line since it always rewrites the whole history of a file. It does however have a GUI client which is very simple and gives a great overview. We have three main requirements in a SCM: Fast. It must have a server side service or some other smart way so working with files with a large history is fast. A good Windows GUI client (not Explorer shell integration, not VS or Eclipse IDE integration), so working with files and branches is easy. The possibility to have several branches checked out at once in different directories. Does anyone have a recommendation of a SCM which fulfills there requirements?

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  • Mericural "no username supplied" error on Mac

    - by theDuncs
    I've just installed Mercurial on my Mountain Lion Max (10.8) and on my first commit I'm getting the error: abort: no username supplied (see "hg help config") I've seen a load of answers which suggest I need to create or copy a file form a certain location and paste it into another location and add my username and email to the document. If that is the right thing to do: Where is the file I need to copy (or what is the file called that I need to create) Where do I put that file Do I just need to add the following two lines to the file? [ui] username = Your Name Thanks guys.

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  • How to use git to manage one codebase but have different environments

    - by emostar
    I'm using git for a personal project at the moment and have run into a problem of having one codebase for two different environments and was wondering what the cleanest way to use git would be. Main Desktop I Use this machine for most of my development. I have a git repository here that I cloned off of an empty repository that I use on my internal server. I do most of my work here and push back to the internal server so I can use that as a master of truth and to ease making backups. Laptop I sometimes want to code on the road, so I did a clone from the internal server and created a new branch called "laptop-branch". Unfortunately some directories MSVC++ version are different than from the Main Desktop environment. I just modified the files in the "laptop-branch" and committed them there. Now I did a lot of changes while on vacation with my laptop, and want to push them to origin, but don't want the changes I made that were related to directories and compiler versions to be pushed back to origin. What would be the best way to get this done?

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  • StructureMap singleton behavior not working

    - by user137348
    My code is public static class ContainerBootstrapper { public static void BootstrapStructureMap() { ObjectFactory.Initialize(x => x .ForRequestedType<ValueHolder>() .CacheBy(InstanceScope.Singleton) .TheDefaultIsConcreteType<ValueHolder>()); } } Initialization code (its a windows service) static class Program { static void Main() { ServiceBase[] ServicesToRun; ServicesToRun = new ServiceBase[] { new AppServer() }; ServiceBase.Run(ServicesToRun); ContainerBootstrapper.BootstrapStructureMap(); } } And then I call an instance like this: var valueHolder = ObjectFactory.GetInstance<ValueHolder>(); But I get everytime an new instance not the one used before.

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  • How do I debug a Unity Container "Resolve"?

    - by willem
    I'm using the MS Unity container to do dependency injection, but a "Resolve" is returning unexpected results. Is there an way I can debug this resolution? It would be great if I could view what Types/Instances are registered in the container, but I can't see where this is stored when using QuickWatch. It would also be useful if I could get the container to output some debug Traces. Any suggestions?

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  • How to properly manage a complex DB structure?

    - by errr
    Let's say you have several systems using the same DB - each uses several schemes (sometimes same as the other). This structure of these schemes is somewhat very big and complicated. Now, how could you possibly manage such scheme structure? Obviously using some sort of "configuration" - the simplest would be SQL scripts, but a more reasonable solution would be XMLs which can be easily converted into SQL, or some other readable solution (for example, JPA's XMLs or Annotations). This solution though, causes a problem where you can't really tell if your configuration matches the structure of the DB schemes exactly. You can't say if those two are synchronized. Why wouldn't they? Well, in such big structure there are going to be many changes, and you won't always remember to save/commit your configuration after you've altered the schemes, or maybe you did save/commit it, but eventually didn't altered anything in the schemes and forgot to undo the changes to the configuration. More than that, another problem (not caused by the configuration, but isn't addressed by it either) is versioning. I don't see any good way of managing the DB schemes versions (say our last alteration makes 3 systems crash - not good, how to "rollback"?). And thoughts? thx.

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  • javascript for (i = 0; i < XXX.length; i++) -> length question

    - by Fernando SBS
    for (m = 0; m < troopsCount.length; m++) { //FM_log(7,"i="+i+" m="+m); //FM_log(7,"tipoTropaPrioritaria[m] = "+tipoTropaPrioritaria[m]); //FM_log(7,"troopsCount[m] = "+troopsCount[m]); //FM_log(7,"availableTroops[m] = "+availableTroops[m]); if ((tipoTropaPrioritaria[m] == null || tipoTropaPrioritaria[m] == "undefined") || (troopsCount[m] == null || troopsCount[m] == "undefined") || (availableTroops[m] == null || availableTroops[m] == "undefined")) return "alternaTropas(): ERRO - tipoTropaPrioritaria[m] || troopsCount[m] || availableTroops[m] null ou undefined"; if ((parseInt(tipoTropaPrioritaria[m]) != 0) && (parseInt(troopsCount[m]) != 0)) { naoServe = true; break; } else { if ((parseInt(availableTroops[m])) < (parseInt(troopsCount[m]))) { naoServe = true; break; } else if (m < troopsCount.length) { naoServe = true; } else { //means m >= troopsCount.length naoServe = false; } } } my question is: the last statement else { //means m >= troopsCount.length naoServe = false; } will it ever be evaluated since for (m = 0; m < troopsCount.length; m++) ???

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  • Aborting a merge in git

    - by user18666
    I've done 'git pull', and received a merge conflict. I know that the other version of the file is good, and that mine is bad (all my changes should be abandoned). How do I do this? unmerged: _widget.html.erb You are in the middle of a conflicted merge.

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  • What is the business case for a dependency injection (DI) framework?

    - by kalkie
    At my company we want to start using a dependency injection (DI) framework for managing our dependencies. I have some difficulty with explaining the business value of such a framework. Currently I have come up with these reasons. Less source code, delete all the builder patterns in the code. Increase in flexibility. Easier to switch dependencies. Better separation of concern. The framework is responsible for creating instances instead of our code. Has anybody else had to persuade management? How did you do that? What reasons did you use?

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  • How does the Built-in Bindings of Google Guice work?

    - by lony
    Hello, I tried Google Guice the first time and find it very nice. But, when I reached the part of Built-in Bindings I do not understand the examples. For me it looks like I can use it for logging like an interceptor, but I don't know how. Could someone of you explain this type of Binding and how I can use it? And maybe (if it's possible) use it for logging?

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  • subversioning ipad app project

    - by MistakesRInevitable
    Hi All, I am currently looking at setting up an Ipad app project into subversion. Ive had a lot of experience with windows based development and .net. With this we have just created a repository in a network folder (by just right clicking - TortiseSVN - create repository) , than all we have done is our developers have checked out from this directory. How do we go about doing this in xcode. I know subversion is integrated with xcode and I am pretty confident of doing everything (from tutorials) except for the creation of the repository. Just wondering how we go about creating a repository in a folder based up on network folder? Thanks in advance

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  • Using webbrowser component to click button's website.

    - by George Tas
    I have seen some examples but nothing works for my problem. Say you have in a website this html code. <button onclick="searchClick();" value="SomeValue" type="button" class="submitBtn"><span>Some Button Text</span></button> How can i retrieve this and perform click using the WebBrowser .NET Component in winforms? Can't get nothing with GetElementById...or can't seem to find how to use the GetElementsByTag... Any help appreciated.

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  • Has anyone tried vss2git?

    - by Radicalise
    OK, so I have started a contract where they are using (gulp) Visual SourceSafe and are looking to move to something better. I have recommended Git. I stumbled across vss2git, which looks useful for migrating from VSS. Has anyone used it? Many thanks!

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  • Alternative Django Authenication

    - by pq
    Need to integrate Django with an existing authentication system. That system has it's own database, API, login/logout,edit profile web pages and cookie. (I may have to add a few additional profile fields stored/updated locally) What's the proper approach to substitute the out-of-the-box authentication in Django?

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  • Multiple repositories or single repository with branches?

    - by Goro
    I have been working on a project for some time, and it has branched off into several different versions. All versions have some common code base, and each version has specific functionality that is unique, and each version will need to be supported individually. What SVN structure would you recommend? Right now I am using a separate repository for each project, but the downside of that is that it is impractical for large number of products. The downside of using a single repository with branches is that it would add revision numbers to every branch whether anything was committed, regardless from which branch. What setup do you/would you use in this situation?

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