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Handy ASP.NET MVC 2 Extension Methods – Where am I?

- by Bobby Diaz

Have you ever needed to detect what part of the application is currently being viewed? This might be a bigger issue if you write a lot of shared/partial views or custom display or editor templates. Another scenario, which is the one I encountered when I first started down this path, is when you have some type of menu and you’d like to be able to determine which item represents the current page so you can highlight it in some way. A simple example is the menu that is created as part of the default ASP.NET MVC 2 Application template. <div id="menucontainer"> <ul id="menu"> <li><%= Html.ActionLink("Home", "Index", "Home") %></li> <li><%= Html.ActionLink("About", "About", "Home") %></li> </ul> </div> The part that got me at first, however, was the following entry in the default style sheet (Site.css): ul#menu li.selected a { background-color: #fff; color: #000; } I assumed that the .selected class would automatically get applied to the active menu item. After trying a few different things, including the MvcContrib MenuBuilder, I decided to write my own extension methods so I would have more control over the output. First, I needed a way to determine what view the user has navigated to based on the requested URL and route configuration. Now, I am sure there are many ways to do this, but this is what I came up with: public static class RequestExtensions { public static bool IsCurrentRoute(this RequestContext context, String areaName, String controllerName, params String[] actionNames) { var routeData = context.RouteData; var routeArea = routeData.DataTokens["area"] as String; var current = false; if ( ((String.IsNullOrEmpty(routeArea) && String.IsNullOrEmpty(areaName)) || (routeArea == areaName)) && ((String.IsNullOrEmpty(controllerName)) || (routeData.GetRequiredString("controller") == controllerName)) && ((actionNames == null) || actionNames.Contains(routeData.GetRequiredString("action"))) ) { current = true; } return current; } // additional overloads omitted... } With that in place, I was able to write several UrlHelper methods that check if the supplied values map to the current view. public static class UrlExtensions { public static bool IsCurrent(this UrlHelper urlHelper, String areaName, String controllerName, params String[] actionNames) { return urlHelper.RequestContext.IsCurrentRoute(areaName, controllerName, actionNames); } public static string Selected(this UrlHelper urlHelper, String areaName, String controllerName, params String[] actionNames) { return urlHelper.IsCurrent(areaName, controllerName, actionNames) ? "selected" : String.Empty; } // additional overloads omitted... } Now I can re-work the original menu to utilize these new methods. Note: be sure to import the proper namespace so the extension methods become available inside your views! <div id="menucontainer"> <ul id="menu"> <li class="<%= Url.Selected(null, "Home", "Index") %>"> <%= Html.ActionLink("Home", "Index", "Home")%></li> <li class="<%= Url.Selected(null, "Home", "About") %>"> <%= Html.ActionLink("About", "About", "Home")%></li> </ul> </div> If we take it one step further, we can clean up the markup even more. Check out the Html.ActionMenuItem() extension method and the refined menu: public static class HtmlExtensions { public static MvcHtmlString ActionMenuItem(this HtmlHelper htmlHelper, String linkText, String actionName, String controllerName) { var html = new StringBuilder("<li"); if ( htmlHelper.ViewContext.RequestContext .IsCurrentRoute(null, controllerName, actionName) ) { html.Append(" class=\"selected\""); } html.Append(">") .Append(htmlHelper.ActionLink(linkText, actionName, controllerName)) .Append("</li>"); return MvcHtmlString.Create(html.ToString()); } // additional overloads omitted... } <div id="menucontainer"> <ul id="menu"> <%= Html.ActionMenuItem("Home", "Index", "Home") %> <%= Html.ActionMenuItem("About", "About", "Home") %> </ul> </div> Which generates the following HTML: <div id="menucontainer"> <ul id="menu"> <li class="selected"><a href="/">Home</a></li> <li><a href="/Home/About">About</a></li> </ul> </div> I have created a codepaste of these extension methods if you are interested in using them in your own projects. Enjoy!

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New .NET Library for Accessing the Survey Monkey API

- by Ben Emmett

I’ve used Survey Monkey’s API for a while, and though it’s pretty powerful, there’s a lot of boilerplate each time it’s used in a new project, and the json it returns needs a bunch of processing to be able to use the raw information. So I’ve finally got around to releasing a .NET library you can use to consume the API more easily. The main advantages are: Only ever deal with strongly-typed .NET objects, making everything much more robust and a lot faster to get going Automatically handles things like rate-limiting and paging through results Uses combinations of endpoints to get all relevant data for you, and processes raw response data to map responses to questions To start, either install it using NuGet with PM> Install-Package SurveyMonkeyApi (easier option), or grab the source from https://github.com/bcemmett/SurveyMonkeyApi if you prefer to build it yourself. You’ll also need to have signed up for a developer account with Survey Monkey, and have both your API key and an OAuth token. A simple usage would be something like: string apiKey = "KEY"; string token = "TOKEN"; var sm = new SurveyMonkeyApi(apiKey, token); List<Survey> surveys = sm.GetSurveyList(); The surveys object is now a list of surveys with all the information available from the /surveys/get_survey_list API endpoint, including the title, id, date it was created and last modified, language, number of questions / responses, and relevant urls. If there are more than 1000 surveys in your account, the library pages through the results for you, making multiple requests to get a complete list of surveys. All the filtering available in the API can be controlled using .NET objects. For example you might only want surveys created in the last year and containing “pineapple” in the title: var settings = new GetSurveyListSettings { Title = "pineapple", StartDate = DateTime.Now.AddYears(-1) }; List<Survey> surveys = sm.GetSurveyList(settings); By default, whenever optional fields can be requested with a response, they will all be fetched for you. You can change this behaviour if for some reason you explicitly don’t want the information, using var settings = new GetSurveyListSettings { OptionalData = new GetSurveyListSettingsOptionalData { DateCreated = false, AnalysisUrl = false } }; Survey Monkey’s 7 read-only endpoints are supported, and the other 4 which make modifications to data might be supported in the future. The endpoints are: Endpoint Method Object returned /surveys/get_survey_list GetSurveyList() List<Survey> /surveys/get_survey_details GetSurveyDetails() Survey /surveys/get_collector_list GetCollectorList() List<Collector> /surveys/get_respondent_list GetRespondentList() List<Respondent> /surveys/get_responses GetResponses() List<Response> /surveys/get_response_counts GetResponseCounts() Collector /user/get_user_details GetUserDetails() UserDetails /batch/create_flow Not supported Not supported /batch/send_flow Not supported Not supported /templates/get_template_list Not supported Not supported /collectors/create_collector Not supported Not supported The hierarchy of objects the library can return is Survey List<Page> List<Question> QuestionType List<Answer> List<Item> List<Collector> List<Response> Respondent List<ResponseQuestion> List<ResponseAnswer> Each of these classes has properties which map directly to the names of properties returned by the API itself (though using PascalCasing which is more natural for .NET, rather than the snake_casing used by SurveyMonkey). For most users, Survey Monkey imposes a rate limit of 2 requests per second, so by default the library leaves at least 500ms between requests. You can request higher limits from them, so if you want to change the delay between requests just use a different constructor: var sm = new SurveyMonkeyApi(apiKey, token, 200); //200ms delay = 5 reqs per sec There’s a separate cap of 1000 requests per day for each API key, which the library doesn’t currently enforce, so if you think you’ll be in danger of exceeding that you’ll need to handle it yourself for now. To help, you can see how many requests the current instance of the SurveyMonkeyApi object has made by reading its RequestsMade property. If the library encounters any errors, including communicating with the API, it will throw a SurveyMonkeyException, so be sure to handle that sensibly any time you use it to make calls. Finally, if you have a survey (or list of surveys) obtained using GetSurveyList(), the library can automatically fill in all available information using sm.FillMissingSurveyInformation(surveys); For each survey in the list, it uses the other endpoints to fill in the missing information about the survey’s question structure, respondents, and responses. This results in at least 5 API calls being made per survey, so be careful before passing it a large list. It also joins up the raw response information to the survey’s question structure, so that for each question in a respondent’s set of replies, you can access a ProcessedAnswer object. For example, a response to a dropdown question (from the /surveys/get_responses endpoint) might be represented in json as { "answers": [ { "row": "9384627365", } ], "question_id": "615487516" } Separately, the question’s structure (from the /surveys/get_survey_details endpoint) might have several possible answers, one of which might look like { "text": "Fourth item in dropdown list", "visible": true, "position": 4, "type": "row", "answer_id": "9384627365" } The library understands how this mapping works, and uses that to give you the following ProcessedAnswer object, which first describes the family and type of question, and secondly gives you the respondent’s answers as they relate to the question. Survey Monkey has many different question types, with 11 distinct data structures, each of which are supported by the library. If you have suggestions or spot any bugs, let me know in the comments, or even better submit a pull request .

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Async CTP (C# 5): How to make WCF work with Async CTP

- by javarg

If you have recently downloaded the new Async CTP you will notice that WCF uses Async Pattern and Event based Async Pattern in order to expose asynchronous operations. In order to make your service compatible with the new Async/Await Pattern try using an extension method similar to the following: WCF Async/Await Method public static class ServiceExtensions { public static Task<DateTime> GetDateTimeTaskAsync(this Service1Client client) { return Task.Factory.FromAsync<DateTime>( client.BeginGetDateTime(null, null), ar => client.EndGetDateTime(ar)); } } The previous code snippet adds an extension method to the GetDateTime method of the Service1Client WCF proxy. Then used it like this (remember to add the extension method’s namespace into scope in order to use it): Code Snippet var client = new Service1Client(); var dt = await client.GetDateTimeTaskAsync(); Replace the proxy’s type and operation name for the one you want to await.

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Restful Services, oData, and Rest Sharp

- by jkrebsbach

After a great presentation by Jason Sheehan at MDC about RestSharp, I decided to implement it. RestSharp is a .Net framework for consuming restful data sources via either Json or XML. My first step was to put together a Restful data source for RestSharp to consume. Staying entirely withing .Net, I decided to use Microsoft's oData implementation, built on System.Data.Services.DataServices. Natively, these support Json, or atom+pub xml. (XML with a few bells and whistles added on) There are three main steps for creating an oData data source: 1) override CreateDSPMetaData This is where the metadata data is returned. The meta data defines the structure of the data to return. The structure contains the relationships between data objects, along with what properties the objects expose. The meta data can and should be somehow cached so that the structure is not rebuild with every data request. 2) override CreateDataSource The context contains the data the data source will publish. This method is the conduit which will populate the metadata objects to be returned to the requestor. 3) implement static InitializeService At this point we can set up security, along with setting up properties of the web service (versioning, etc) Here is a web service which publishes stock prices for various Products (stocks) in various Categories. namespace RestService { public class RestServiceImpl : DSPDataService<DSPContext> { private static DSPContext _context; private static DSPMetadata _metadata; /// <summary> /// Populate traversable data source /// </summary> /// <returns></returns> protected override DSPContext CreateDataSource() { if (_context == null) { _context = new DSPContext(); Category utilities = new Category(0); utilities.Name = "Electric"; Category financials = new Category(1); financials.Name = "Financial"; IList products = _context.GetResourceSetEntities("Products"); Product electric = new Product(0, utilities); electric.Name = "ABC Electric"; electric.Description = "Electric Utility"; electric.Price = 3.5; products.Add(electric); Product water = new Product(1, utilities); water.Name = "XYZ Water"; water.Description = "Water Utility"; water.Price = 2.4; products.Add(water); Product banks = new Product(2, financials); banks.Name = "FatCat Bank"; banks.Description = "A bank that's almost too big"; banks.Price = 19.9; // This will never get to the client products.Add(banks); IList categories = _context.GetResourceSetEntities("Categories"); categories.Add(utilities); categories.Add(financials); utilities.Products.Add(electric); utilities.Products.Add(electric); financials.Products.Add(banks); } return _context; } /// <summary> /// Setup rules describing published data structure - relationships between data, /// key field, other searchable fields, etc. /// </summary> /// <returns></returns> protected override DSPMetadata CreateDSPMetadata() { if (_metadata == null) { _metadata = new DSPMetadata("DemoService", "DataServiceProviderDemo"); // Define entity type product ResourceType product = _metadata.AddEntityType(typeof(Product), "Product"); _metadata.AddKeyProperty(product, "ProductID"); // Only add properties we wish to share with end users _metadata.AddPrimitiveProperty(product, "Name"); _metadata.AddPrimitiveProperty(product, "Description"); EntityPropertyMappingAttribute att = new EntityPropertyMappingAttribute("Name", SyndicationItemProperty.Title, SyndicationTextContentKind.Plaintext, true); product.AddEntityPropertyMappingAttribute(att); att = new EntityPropertyMappingAttribute("Description", SyndicationItemProperty.Summary, SyndicationTextContentKind.Plaintext, true); product.AddEntityPropertyMappingAttribute(att); // Define products as a set of product entities ResourceSet products = _metadata.AddResourceSet("Products", product); // Define entity type category ResourceType category = _metadata.AddEntityType(typeof(Category), "Category"); _metadata.AddKeyProperty(category, "CategoryID"); _metadata.AddPrimitiveProperty(category, "Name"); _metadata.AddPrimitiveProperty(category, "Description"); // Define categories as a set of category entities ResourceSet categories = _metadata.AddResourceSet("Categories", category); att = new EntityPropertyMappingAttribute("Name", SyndicationItemProperty.Title, SyndicationTextContentKind.Plaintext, true); category.AddEntityPropertyMappingAttribute(att); att = new EntityPropertyMappingAttribute("Description", SyndicationItemProperty.Summary, SyndicationTextContentKind.Plaintext, true); category.AddEntityPropertyMappingAttribute(att); // A product has a category, a category has products _metadata.AddResourceReferenceProperty(product, "Category", categories); _metadata.AddResourceSetReferenceProperty(category, "Products", products); } return _metadata; } /// <summary> /// Based on the requesting user, can set up permissions to Read, Write, etc. /// </summary> /// <param name="config"></param> public static void InitializeService(DataServiceConfiguration config) { config.SetEntitySetAccessRule("*", EntitySetRights.All); config.DataServiceBehavior.MaxProtocolVersion = DataServiceProtocolVersion.V2; config.DataServiceBehavior.AcceptProjectionRequests = true; } } } The objects prefixed with DSP come from the samples on the oData site: http://www.odata.org/developers The products and categories objects are POCO business objects with no special modifiers. Three main options are available for defining the MetaData of data sources in .Net: 1) Generate Entity Data model (Potentially directly from SQL Server database). This requires the least amount of manual interaction, and uses the edmx WYSIWYG editor to generate a data model. This can be directly tied to the SQL Server database and generated from the database if you want a data access layer tightly coupled with your database. 2) Object model decorations. If you already have a POCO data layer, you can decorate your objects with properties to statically inform the compiler how the objects are related. The disadvantage is there are now tags strewn about your business layer that need to be updated as the business rules change. 3) Programmatically construct metadata object. This is the object illustrated above in CreateDSPMetaData. This puts all relationship information into one central programmatic location. Here business rules are constructed when the DSPMetaData response object is returned. Once you have your service up and running, RestSharp is designed for XML / Json, along with the native Microsoft library. There are currently some differences between how Jason made RestSharp expect XML with how atom+pub works, so I found better results currently with the Json implementation - modifying the RestSharp XML parser to make an atom+pub parser is fairly trivial though, so use what implementation works best for you. I put together a sample console app which calls the RestSvcImpl.svc service defined above (and assumes it to be running on port 2000). I used both RestSharp as a client, and also the default Microsoft oData client tools. namespace RestConsole { class Program { private static DataServiceContext _ctx; private enum DemoType { Xml, Json } static void Main(string[] args) { // Microsoft implementation _ctx = new DataServiceContext(new System.Uri("http://localhost:2000/RestServiceImpl.svc")); var msProducts = RunQuery<Product>("Products").ToList(); var msCategory = RunQuery<Category>("/Products(0)/Category").AsEnumerable().Single(); var msFilteredProducts = RunQuery<Product>("/Products?$filter=length(Name) ge 4").ToList(); // RestSharp implementation DemoType demoType = DemoType.Json; var client = new RestClient("http://localhost:2000/RestServiceImpl.svc"); client.ClearHandlers(); // Remove all available handlers // Set up handler depending on what situation dictates if (demoType == DemoType.Json) client.AddHandler("application/json", new RestSharp.Deserializers.JsonDeserializer()); else if (demoType == DemoType.Xml) { client.AddHandler("application/atom+xml", new RestSharp.Deserializers.XmlDeserializer()); } var request = new RestRequest(); if (demoType == DemoType.Json) request.RootElement = "d"; // service root element for json else if (demoType == DemoType.Xml) { request.XmlNamespace = "http://www.w3.org/2005/Atom"; } // Return all products request.Resource = "/Products?$orderby=Name"; RestResponse<List<Product>> productsResp = client.Execute<List<Product>>(request); List<Product> products = productsResp.Data; // Find category for product with ProductID = 1 request.Resource = string.Format("/Products(1)/Category"); RestResponse<Category> categoryResp = client.Execute<Category>(request); Category category = categoryResp.Data; // Specialized queries request.Resource = string.Format("/Products?$filter=ProductID eq {0}", 1); RestResponse<Product> productResp = client.Execute<Product>(request); Product product = productResp.Data; request.Resource = string.Format("/Products?$filter=Name eq '{0}'", "XYZ Water"); productResp = client.Execute<Product>(request); product = productResp.Data; } private static IEnumerable<TElement> RunQuery<TElement>(string queryUri) { try { return _ctx.Execute<TElement>(new Uri(queryUri, UriKind.Relative)); } catch (Exception ex) { throw ex; } } } } Feel free to step through the code a few times and to attach a debugger to the service as well to see how and where the context and metadata objects are constructed and returned. Pay special attention to the response object being returned by the oData service - There are several properties of the RestRequest that can be used to help troubleshoot when the structure of the response is not exactly what would be expected.

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Vidalia detected that the Tor software exited unexpectedly?

- by Rana Muhammad Waqas

I have installed the vidalia by following these instructions everything went as they mentioned. When I started vidalia it gave me the error: Vidalia was unable to start Tor. Check your settings to ensure the correct name and location of your Tor executable is specified. I found that bug here and followed their instructions to fix it and now after that it says: Vidalia detected that the Tor software exited unexpectedly. Please check the message log for recent warning or error messages. Logs of Vidalia Oct 18 02:15:06.937 [Notice] Tor v0.2.3.25 (git-3fed5eb096d2d187) running on Linux. Oct 18 02:15:06.937 [Notice] Tor can't help you if you use it wrong! Learn how to be safe at https://www.torproject.org/download/download#warning Oct 18 02:15:06.937 [Notice] Read configuration file "/home/waqas/.vidalia/torrc". Oct 18 02:15:06.937 [Notice] We were compiled with headers from version 2.0.19-stable of Libevent, but we're using a Libevent library that says it's version 2.0.21-stable. Oct 18 02:15:06.938 [Notice] Initialized libevent version 2.0.21-stable using method epoll (with changelist). Good. Oct 18 02:15:06.938 [Notice] Opening Socks listener on 127.0.0.1:9050 Oct 18 02:15:06.938 [Warning] Could not bind to 127.0.0.1:9050: Address already in use. Is Tor already running? Oct 18 02:15:06.938 [Warning] /var/run/tor is not owned by this user (waqas, 1000) but by debian-tor (118). Perhaps you are running Tor as the wrong user? Oct 18 02:15:06.938 [Warning] Before Tor can create a control socket in "/var/run/tor/control", the directory "/var/run/tor" needs to exist, and to be accessible only by the user account that is running Tor. (On some Unix systems, anybody who can list a socket can connect to it, so Tor is being careful.) Oct 18 02:15:06.938 [Warning] Failed to parse/validate config: Failed to bind one of the listener ports. Oct 18 02:15:06.938 [Error] Reading config failed--see warnings above. Please Help !

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How to upgrade boost lib using apt-get?

- by sam

I use ubuntu 11.04. My boost version: sam@sam:~/code/ros/pcl$ apt-cache showpkg libboost-all-dev Package: libboost-all-dev Versions: 1.42.0.1ubuntu1 (/var/lib/apt/lists/tw.archive.ubuntu.com_ubuntu_dists_natty_universe_binary-amd64_Packages) (/var/lib/dpkg/status) Description Language: File: /var/lib/apt/lists/tw.archive.ubuntu.com_ubuntu_dists_natty_universe_binary-amd64_Packages MD5: 72efad05a3c79394c125b79e1d4eb3a7 Reverse Depends: libvtk5-dev,libboost-all-dev libfeel++-dev,libboost-all-dev Dependencies: 1.42.0.1ubuntu1 - libboost-dev (0 (null)) libboost-date-time-dev (0 (null)) libboost-filesystem-dev (0 (null)) libboost-graph-dev (0 (null)) libboost-iostreams-dev (0 (null)) libboost-math-dev (0 (null)) libboost-program-options-dev (0 (null)) libboost-python-dev (0 (null)) libboost-regex-dev (0 (null)) libboost-serialization-dev (0 (null)) libboost-signals-dev (0 (null)) libboost-system-dev (0 (null)) libboost-test-dev (0 (null)) libboost-thread-dev (0 (null)) libboost-wave-dev (0 (null)) Provides: 1.42.0.1ubuntu1 - Reverse Provides: sam@sam:~/code/ros/pcl$ How to upgrade boost to 1.44+ by using apt tools? Thank you~ When I run apt-add-repository,it shows: sam@sam:~/code/ros/pcl$ sudo apt-add-repository ppa:timklingt/ppa Error reading https://launchpad.net/api/1.0/~timklingt/+archive/ppa: GnuTLS recv error (-9): A TLS packet with unexpected length was received. sam@sam:~/code/ros/pcl$ How to fix it? Thank you~ I try to install libboost1.46-all-dev: sam@sam:~/code/ros/pcl$ sudo apt-get install libboost1.46-all-dev Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: libboost1.46-all-dev : Depends: libboost1.46-dev but it is not going to be installed Depends: libboost-date-time1.46-dev but it is not going to be installed Depends: libboost-filesystem1.46-dev but it is not going to be installed Depends: libboost-graph1.46-dev but it is not going to be installed Depends: libboost-iostreams1.46-dev but it is not going to be installed Depends: libboost-math1.46-dev but it is not going to be installed Depends: libboost-program-options1.46-dev but it is not going to be installed Depends: libboost-python1.46-dev but it is not going to be installed Depends: libboost-regex1.46-dev but it is not going to be installed Depends: libboost-serialization1.46-dev but it is not going to be installed Depends: libboost-signals1.46-dev but it is not going to be installed Depends: libboost-system1.46-dev but it is not going to be installed Depends: libboost-test1.46-dev but it is not going to be installed Depends: libboost-thread1.46-dev but it is not going to be installed Depends: libboost-wave1.46-dev but it is not going to be installed E: Broken packages sam@sam:~/code/ros/pcl$ What's these error means? And how to solve it? Thank you~

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OTN Developer Day: Oracle Database 11g Application Development

- by stephen.garth

When and Where: Tuesday June 15, 2010 from 8:00 am - 5:30 pm Hyatt Regency Reston, Reston VA This full-day FREE event offers a great learning and networking opportunity. With support from Oracle database application development experts, you'll get valuable hands-on experience developing database-backed apps with the latest Oracle tools and frameworks. Oh yeah, you get to use your own notebook and download some cool and very useful materials. Find out more and register here. var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); try { var pageTracker = _gat._getTracker("UA-13185312-1"); pageTracker._trackPageview(); } catch(err) {}

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How can I respond to mouse events in AS3?

- by Gabriel Meono

Background: Trying to make a simple "drop the ball" game. The code is located inside the first frame of the timeline. Nothing more is on the stage. Issue: Using QuickBox2D I made a simple If statement that drops and object acording the Mouse-x position: if (MouseEvent.CLICK) { sim.addCircle({x:mouseX, y:1, radius:0.25, density:5}); I imported the MouseEvent library: import flash.events.MouseEvent; Nothing happens if I click, no output errors either. See it in action: http://gabrielmeono.com/download/Lucky_Hit_Alpha.swf http://gabrielmeono.com/download/Lucky_Hit_Alpha.fla Full Code: [SWF(width = 350, height = 600, frameRate = 60)] import com.actionsnippet.qbox.*; import flash.events.MouseEvent; var sim:QuickBox2D = new QuickBox2D(this); sim.createStageWalls(); //var ball:sim.addCircle({x:mouseX, y:1, radius:0.25, density:5}); // // make a heavy circle sim.addCircle({x:3, y:1, radius:0.25, density:5}); sim.addCircle({x:2, y:1, radius:0.25, density:5}); sim.addCircle({x:4, y:1, radius:0.25, density:5}); sim.addCircle({x:5, y:1, radius:0.25, density:5}); sim.addCircle({x:6, y:1, radius:0.25, density:5}); // create a few platforms sim.addBox({x:3, y:2, width:4, height:0.2, density:0, angle:0.1}); // make 26 dominoes for (var i:int = 0; i<7; i++){ //End sim.addCircle({x:1 + i * 1.5, y:16, radius:0.1, density:0}); sim.addCircle({x:2 + i * 1.5, y:15, radius:0.1, density:0}); //Mid end sim.addCircle({x:0 + i * 2, y:14, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:13, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:12, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:11, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:10, radius:0.1, density:0}); //Middle Start sim.addCircle({x:0 + i * 1.5, y:09, radius:0.1, density:0}); sim.addCircle({x:1 + i * 1.5, y:08, radius:0.1, density:0}); sim.addCircle({x:0 + i * 1.5, y:07, radius:0.1, density:0}); sim.addCircle({x:1 + i * 1.5, y:06, radius:0.1, density:0}); } if (MouseEvent.CLICK) { sim.addCircle({x:mouseX, y:1, radius:0.25, density:5}); sim.start(); /*sim.mouseDrag();*/ }

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ASP.NET MVC: Converting business objects to select list items

- by DigiMortal

Some of our business classes are used to fill dropdown boxes or select lists. And often you have some base class for all your business classes. In this posting I will show you how to use base business class to write extension method that converts collection of business objects to ASP.NET MVC select list items without writing a lot of code. BusinessBase, BaseEntity and other base classes I prefer to have some base class for all my business classes so I can easily use them regardless of their type in contexts I need. NB! Some guys say that it is good idea to have base class for all your business classes and they also suggest you to have mappings done same way in database. Other guys say that it is good to have base class but you don’t have to have one master table in database that contains identities of all your business objects. It is up to you how and what you prefer to do but whatever you do – think and analyze first, please. :) To keep things maximally simple I will use very primitive base class in this example. This class has only Id property and that’s it. public class BaseEntity { public virtual long Id { get; set; } } Now we have Id in base class and we have one more question to solve – how to better visualize our business objects? To users ID is not enough, they want something more informative. We can define some abstract property that all classes must implement. But there is also another option we can use – overriding ToString() method in our business classes. public class Product : BaseEntity { public virtual string SKU { get; set; } public virtual string Name { get; set; } public override string ToString() { if (string.IsNullOrEmpty(Name)) return base.ToString(); return Name; } } Although you can add more functionality and properties to your base class we are at point where we have what we needed: identity and human readable presentation of business objects. Writing list items converter Now we can write method that creates list items for us. public static class BaseEntityExtensions { public static IEnumerable<SelectListItem> ToSelectListItems<T> (this IList<T> baseEntities) where T : BaseEntity { return ToSelectListItems((IEnumerator<BaseEntity>) baseEntities.GetEnumerator()); } public static IEnumerable<SelectListItem> ToSelectListItems (this IEnumerator<BaseEntity> baseEntities) { var items = new HashSet<SelectListItem>(); while (baseEntities.MoveNext()) { var item = new SelectListItem(); var entity = baseEntities.Current; item.Value = entity.Id.ToString(); item.Text = entity.ToString(); items.Add(item); } return items; } } You can see here to overloads of same method. One works with List<T> and the other with IEnumerator<BaseEntity>. Although mostly my repositories return IList<T> when querying data there are always situations where I can use more abstract types and interfaces. Using extension methods in code In your code you can use ToSelectListItems() extension methods like shown on following code fragment. ... var model = new MyFormModel(); model.Statuses = _myRepository.ListStatuses().ToSelectListItems(); ... You can call this method on all your business classes that extend your base entity. Wanna have some fun with this code? Write overload for extension method that accepts selected item ID.

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The ugly evolution of running a background operation in the context of an ASP.NET app

- by Jeff

If you’re one of the two people who has followed my blog for many years, you know that I’ve been going at POP Forums now for over almost 15 years. Publishing it as an open source app has been a big help because it helps me understand how people want to use it, and having it translated to six languages is pretty sweet. Despite this warm and fuzzy group hug, there has been an ugly hack hiding in there for years. One of the things we find ourselves wanting to do is hide some kind of regular process inside of an ASP.NET application that runs periodically. The motivation for this has always been that a lot of people simply don’t have a choice, because they’re running the app on shared hosting, or don’t otherwise have access to a box that can run some kind of regular background service. In POP Forums, I “solved” this problem years ago by hiding some static timers in an HttpModule. Truthfully, this works well as long as you don’t run multiple instances of the app, which in the cloud world, is always a possibility. With the arrival of WebJobs in Azure, I’m going to solve this problem. This post isn’t about that. The other little hacky problem that I “solved” was spawning a background thread to queue emails to subscribed users of the forum. This evolved quite a bit over the years, starting with a long running page to mail users in real-time, when I had only a few hundred. By the time it got into the thousands, or tens of thousands, I needed a better way. What I did is launched a new thread that read all of the user data in, then wrote a queued email to the database (as in, the entire body of the email, every time), with the properly formatted opt-out link. It was super inefficient, but it worked. Then I moved my biggest site using it, CoasterBuzz, to an Azure Website, and it stopped working. So let’s start with the first stupid thing I was doing. The new thread was simply created with delegate code inline. As best I can tell, Azure Websites are more aggressive about garbage collection, because that thread didn’t queue even one message. When the calling server response went out of scope, so went the magic background thread. Duh, all I had to do was move the thread to a private static variable in the class. That’s the way I was able to keep stuff running from the HttpModule. (And yes, I know this is still prone to failure, particularly if the app recycles. For as infrequently as it’s used, I have not, however, experienced this.) It was still failing, but this time I wasn’t sure why. It would queue a few dozen messages, then die. Running in Azure, I had to turn on the application logging and FTP in to see what was going on. That led me to a helper method I was using as delegate to build the unsubscribe links. The idea here is that I didn’t want yet another config entry to describe the base URL, appended with the right path that would match the routing table. No, I wanted the app to figure it out for you, so I came up with this little thing: public static string FullUrlHelper(this Controller controller, string actionName, string controllerName, object routeValues = null) { var helper = new UrlHelper(controller.Request.RequestContext); var requestUrl = controller.Request.Url; if (requestUrl == null) return String.Empty; var url = requestUrl.Scheme + "://"; url += requestUrl.Host; url += (requestUrl.Port != 80 ? ":" + requestUrl.Port : ""); url += helper.Action(actionName, controllerName, routeValues); return url; } And yes, that should have been done with a string builder. This is useful for sending out the email verification messages, too. As clever as I thought I was with this, I was using a delegate in the admin controller to format these unsubscribe links for tens of thousands of users. I passed that delegate into a service class that did the email work: Func<User, string> unsubscribeLinkGenerator = user => this.FullUrlHelper("Unsubscribe", AccountController.Name, new { id = user.UserID, key = _profileService.GetUnsubscribeHash(user) }); _mailingListService.MailUsers(subject, body, htmlBody, unsubscribeLinkGenerator); Cool, right? Actually, not so much. If you look back at the helper, this delegate then will depend on the controller context to learn the routing and format for the URL. As you might have guessed, those things were turning null after a few dozen formatted links, when the original request to the admin controller went away. That this wasn’t already happening on my dedicated server is surprising, but again, I understand why the Azure environment might be eager to reclaim a thread after servicing the request. It’s already inefficient that I’m building the entire email for every user, but going back to check the routing table for the right link every time isn’t a win either. I put together a little hack to look up one generic URL, and use that as the basis for a string format. If you’re wondering why I didn’t just use the curly braces up front, it’s because they get URL formatted: var baseString = this.FullUrlHelper("Unsubscribe", AccountController.Name, new { id = "--id--", key = "--key--" }); baseString = baseString.Replace("--id--", "{0}").Replace("--key--", "{1}"); Func unsubscribeLinkGenerator = user => String.Format(baseString, user.UserID, _profileService.GetUnsubscribeHash(user)); _mailingListService.MailUsers(subject, body, htmlBody, unsubscribeLinkGenerator); And wouldn’t you know it, the new solution works just fine. It’s still kind of hacky and inefficient, but it will work until this somehow breaks too.

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Minidlna Directory Issues

- by Somnambulist

I've done my searching and can't find an answer to THIS specific issue. I have my minidlna set up and running - but it's not really done properly. First off, when I open the server on my bluray player, all of my movies are listed twice - when they are certainly not saved on my external twice. Second, when I open the server - rather than reading "Movies" "TV" "Music", etc - It just mashes all of my movies, tv, and some other folders all together with no real organization. I never had this problem when I had my Windows set up, so I know it's something configured improperly more-so than my external drive giving me gruff. Here's my minidlna.conf file: # This is the configuration file for the MiniDLNA daemon, a DLNA/UPnP-AV media # server. # # Unless otherwise noted, the commented out options show their default value. # # On Debian, you can also refer to the minidlna.conf(5) man page for # documentation about this file. media_dir=/media/somnambulist/Ghost In You # This option can be specified more than once if you want multiple directories # scanned. # # If you want to restrict a media_dir to a specific content type, you can # prepend the directory name with a letter representing the type (A, P or V), # followed by a comma, as so: # * "A" for audio (eg. media_dir=A,/var/lib/minidlna/music) # * "P" for pictures (eg. media_dir=P,/var/lib/minidlna/pictures) # * "V" for video (eg. media_dir=V,/var/lib/minidlna/videos) # # WARNING: After changing this option, you need to rebuild the database. Either # run minidlna with the '-R' option, or delete the 'files.db' file # from the db_dir directory (see below). # On Debian, you can run, as root, 'service minidlna force-reload' instead. #media_dir=/var/lib/minidlna media_dir=V,/media/somnambulist/Ghost In You/Movies media_dir=V,/media/somnambulist/Ghost In You/TV media_dir=P,/home/somnambulist/Pictures # Path to the directory that should hold the database and album art cache. db_dir=/home/somnambulist/serverart # Path to the directory that should hold the log file. log_dir=/home/somnambulist/serverlog # Minimum level of importance of messages to be logged. # Must be one of "off", "fatal", "error", "warn", "info" or "debug". # "off" turns of logging entirely, "fatal" is the highest level of importance # and "debug" the lowest. #log_level=warn # Use a different container as the root of the directory tree presented to # clients. The possible values are: # * "." - standard container # * "B" - "Browse Directory" # * "M" - "Music" # * "P" - "Pictures" # * "V" - "Video" # if you specify "B" and client device is audio-only then "Music/Folders" will be used as root root_container=B # Network interface(s) to bind to (e.g. eth0), comma delimited. #network_interface= # IPv4 address to listen on (e.g. 192.0.2.1). #listening_ip= # Port number for HTTP traffic (descriptions, SOAP, media transfer). port=8200 # URL presented to clients. # The default is the IP address of the server on port 80. #presentation_url=http://example.com:80 # Name that the DLNA server presents to clients. friendly_name=Somnambulist Media Server # Serial number the server reports to clients. serial=12345678 # Model name the server reports to clients. #model_name=Windows Media Connect compatible (MiniDLNA) # Model number the server reports to clients. model_number=1 # Automatic discovery of new files in the media_dir directory. #inotify=yes # List of file names to look for when searching for album art. Names should be # delimited with a forward slash ("/"). album_art_names=Cover.jpg/cover.jpg/AlbumArtSmall.jpg/albumartsmall.jpg/AlbumArt.jpg/albumart.jpg/Album.jpg/album.jpg/Folder.jpg/folder.jpg/Thumb.jpg/thumb.jpg # Strictly adhere to DLNA standards. # This allows server-side downscaling of very large JPEG images, which may # decrease JPEG serving performance on (at least) Sony DLNA products. #strict_dlna=no # Support for streaming .jpg and .mp3 files to a TiVo supporting HMO. #enable_tivo=no # Notify interval, in seconds. #notify_interval=895 # Path to the MiniSSDPd socket, for MiniSSDPd support. #minissdpdsocket=/run/minissdpd.sock` And here's the error I get in terminal when I run: sudo service minidlna restart sudo service minidlna force-reload Force restart error: Restarting DLNA/UPnP-AV media server minidlna [2013/08/12 21:19:27] minidlna.c:474: error: Media directory "/media/somnambulist/Ghost In You/Movies" not accessible! [Permission denied] [2013/08/12 21:19:27] minidlna.c:474: error: Media directory "/media/somnambulist/Ghost In You/TV" not accessible! [Permission denied] Force-reload error: Restarting DLNA/UPnP-AV media server minidlna [2013/08/12 21:19:46] minidlna.c:474: error: Media directory "/media/somnambulist/Ghost In You/Movies" not accessible! [Permission denied] [2013/08/12 21:19:46] minidlna.c:474: error: Media directory "/media/somnambulist/Ghost In You/TV" not accessible! [Permission denied] rm: cannot remove ‘/home/somnambulist/serverart/files.db’: Permission denied rm: cannot remove ‘/home/somnambulist/serverart/art_cache/media/somnambulist/Ghost In You/Movies/Slumdog Millionaire/Slumdog.Millionaire.Cover.jpg’: Permission denied rm: cannot remove ‘/home/somnambulist/serverart/art_cache/media/somnambulist/Ghost In You/Movies/Zack and Miri Make a Porno/ZackAndMiriMakeAPornoCover.jpg’: Permission denied [2013/08/12 21:19:46] minidlna.c:744: warn: Failed to clean old file cache. [ OK ] I've spent hours on this at this point, read through various files - and even had a friend who is relatively Ubuntu-savvy try to help me via chat - no such luck. Thanks in advance for any help.

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SnagIt Live Writer Plug-in updated

- by Rick Strahl

I've updated my free SnagIt Live Writer plug-in again as there have been a few issues with the new release of SnagIt 11. It appears that TechSmith has trimmed the COM object and removed a bunch of redundant functionality which has broken the older plug-in. I also updated the layout and added SnagIt's latest icons to the form. Finally I've moved the source code to Github for easier browsing and downloading for anybody interested and easier updating for me. This plug-in is not new - I created it a number of years back, but I use the hell out it both for my blogging and for a few internal apps that with MetaWebLogApi to update online content. The plug-in makes it super easy to add captured image content directly into a post and upload it to the server. What does it do? Once installed the plug-in shows up in the list of plug-ins. When you click it launches a SnagIt Capture Dialog: Typically you set the capture settings once, and then save your settings. After that a single click or ENTER press gets you off capturing. If you choose the Show in SnagIt preview window option, the image you capture is is displayed in the preview editor to mark up images, which is one of SnagIt's great strengths IMHO. The image editor has a bunch of really nice effects for framing and marking up and highlighting of images that is really sweet. Here's a capture from a previous image in the SnagIt editor where I applied the saw tooth cutout effect: Images are saved to disk and can optionally be deleted immediately, since Live Writer creates copies of original images in its own folders before uploading the files. No need to keep the originals around typically. The plug-in works with SnagIt Versions 7 and later. It's a simple thing of course - nothing magic here, but incredibly useful at least to me. If you're using Live Writer and you own a copy of SnagIt do yourself a favor and grab this and install it as a plug-in. Resources: SnagIt Windows Live Writer Plug-in Installer Source Code on GitHub Buy SnagIt© Rick Strahl, West Wind Technologies, 2005-2012 Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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Easy way to update models in your ASP.NET MVC business layer

- by rajbk

Brad Wilson just mentioned there is a static class ModelCopier that has a static method CopyModel(object from, object to) in the MVC Futures library. It uses reflection to match properties with the same name and compatible types. In short, instead of manually copying over properties as shown here: public void Save(EmployeeViewModel employeeViewModel){ var employee = (from emp in dataContext.Employees where emp.EmployeeID == employeeViewModel.EmployeeID select emp).SingleOrDefault(); if (employee != null) { employee.Address = employeeViewModel.Address; employee.Salary = employeeViewModel.Salary; employee.Title = employeeViewModel.Title; } dataContext.SubmitChanges();} you can use the method like so: public void Save(EmployeeViewModel employeeViewModel){ var employee = (from emp in dataContext.Employees where emp.EmployeeID == employeeViewModel.EmployeeID select emp).SingleOrDefault(); if (employee != null) { ModelCopier.CopyModel(employeeViewModel, employee); } dataContext.SubmitChanges();} Beautiful, isn’t it?

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A Small Utility to Delete Files recursively by Date

- by Rick Strahl

It's funny, but for me the following seems to be a recurring theme: Every few months or years I end up with a host of files on my server that need pruning selectively and often under program control. Today I realized that my SQL Server logs on my server were really piling up and nearly ran my backup drive out of drive space. So occasionally I need to check on that server drive and clean out files. Now with a bit of work this can be done with PowerShell or even a complicated DOS batch file, but heck, to me it's always easier to just create a small Console application that handles this sort of thing with a full command line parser and a few extra options, plus in the end I end up with code that I can actually modify and add features to as is invariably the case. No more searching for a script each time :-) So for my typical copy needs the requirements are: Need to recursively delete files Need to be able to specify a filespec (ie. *.bak) Be able to specify a cut off date before which to delete files And it'd be nice to have an option to send files to the Recycle bin just in case for operator error :-)(and yes that came in handy as I blew away my entire database backup folder by accident - oops!) The end result is a small Console file copy utility that I popped up on Github: https://github.com/RickStrahl/DeleteFiles The source code is up there along with the binary file you can just run. Creating DeleteFiles It's pretty easy to create a simple utility like DeleteFiles of course, so I'm not going to spend any talking about how it works. You can check it out in the repository or download and compile it. The nice thing about using a full programming language like C over something like PowerShell or batch file is that you can make short work of the recursive tree walking that's required to make this work. There's very little code, but there's also a very small, self-contained command line parser in there that might be useful that can be plugged into any project - I've been using it quite a bit for just about any Console application I've been building. If you're like me and don't have the patience or the persistence (that funky syntax requires some 'sticking with it' that I simply can't get over) to get into Powershell coding, having an executable file that I can just copy around or keep in my Utility directory is the only way I'll ever get to reuse this functionality without going on a wild search each time :-) Anyway, hope some of you might find this useful. © Rick Strahl, West Wind Technologies, 2005-2012Posted in Windows CSharp Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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Learn how Oracle storage efficiencies can help your budget

- by jenny.gelhausen

Mark Your Calendar! Live Webcast: Next Generation Storage Management Solutions Wednesday, March 24th, 2010 at 9:00am PT or your local time Please plan to join us for this webcast where Forrester senior analyst Andrew Reichman will discuss the pillars of storage efficiency, how to measure and improve it, and how this can help your business immediately alleviate budget pressures. Joining Mr. Reichman are Phil Stephenson, Senior Principal Product Manager at Oracle, and Matthew Baier, Oracle Product Director, who will explain to you the next generation storage capabilities available in Oracle Database 11g and Oracle Exadata. Register for this March 24th live wecast today! var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); try { var pageTracker = _gat._getTracker("UA-13185312-1"); pageTracker._trackPageview(); } catch(err) {}

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Using Lazy<T> and abstract wrapper class to lazy-load complex system parameters

- by DigiMortal

.NET Framework 4.0 introduced new class called Lazy<T> and I wrote blog post about it: .Net Framework 4.0: Using System.Lazy<T>. One thing is annoying for me – we have to keep lazy loaded value and its value loader as separate things. In this posting I will introduce you my Lazy<T> wrapper for complex to get system parameters that uses template method to keep lazy value loader in parameter class. Problem with original implementation Here’s the sample code that shows you how Lazy<T> is usually used. This is just sample code, don’t focus on the fact that this is dummy console application. class Program { static void Main(string[] args) { var temperature = new Lazy<int>(LoadMinimalTemperature); Console.WriteLine("Minimal room temperature: " + temperature.Value); Console.ReadLine(); } protected static int LoadMinimalTemperature() { var returnValue = 0; // Do complex stuff here return true; } } The problem is that our class with many lazy loaded properties will grow messy if it has all value loading code inside it. This code may be complex for more than one parameter and in this case it is better to use separate class for this parameter. Defining base class for parameters As a first step I will define base class for all lazy-loaded parameters. This class is wrapper around Lazy<T> and it also offers one template method that parameter classes have to override to provide loaded data. public abstract class LazyParameter<T> { private Lazy<T> _lazyParam; public LazyParameter() { _lazyParam = new Lazy<T>(Load); } protected abstract T Load(); public T Value { get { return _lazyParam.Value; } } } It is also possible to extend Lazy<T> but I don’t prefer to do it as Lazy<T> has six constructors we have to take care of. Also I don’t like to expose Lazy<T> public interface to users of my parameter classes. Creating parameter class Now it’s time to create our first parameter class. Notice how few stuff we have in this class besides overridden Load() method. public class MinimalRoomTemperature : LazyParameter<int> { protected override int Load() { var returnValue = 0; // Do complex stuff here return returnValue; } } Using parameter class is simple. Here’s my test code. class Program { static void Main(string[] args) { var parameter = new MinimalRoomTemperature(); Console.WriteLine("Minimal room temperature: " + parameter.Value); Console.ReadLine(); } } Conclusion Lazy<T> is useful class that you usually don’t want to use outside from API-s. I like this class but I don’t like when people are using this class directly in application code. In this posting I showed you how to use Lazy<T> with wrapper class to get complex parameter loading code out from classes that use this parameter. We ended up with generic base class for parameters that you can also use as base for other similar classes (you have to find better name to base class in this case).

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BOX2D and AS3: Mouse Event not working

- by Gabriel Meono

Background: Trying to make a simple "drop the ball" game. The code is located inside the first frame of the timeline. Nothing more is on the stage. Issue: Using QuickBox2D I made a simple If statement that drops and object acording the Mouse-x position: if (MouseEvent.CLICK) { sim.addCircle({x:mouseX, y:1, radius:0.25, density:5}); I imported the MouseEvent library: import flash.events.MouseEvent; Nothing happens if I click, no output errors either. See it in action: http://gabrielmeono.com/download/Lucky_Hit_Alpha.swf http://gabrielmeono.com/download/Lucky_Hit_Alpha.fla Full Code: [SWF(width = 350, height = 600, frameRate = 60)] import com.actionsnippet.qbox.*; import flash.events.MouseEvent; var sim:QuickBox2D = new QuickBox2D(this); sim.createStageWalls(); //var ball:sim.addCircle({x:mouseX, y:1, radius:0.25, density:5}); // // make a heavy circle sim.addCircle({x:3, y:1, radius:0.25, density:5}); sim.addCircle({x:2, y:1, radius:0.25, density:5}); sim.addCircle({x:4, y:1, radius:0.25, density:5}); sim.addCircle({x:5, y:1, radius:0.25, density:5}); sim.addCircle({x:6, y:1, radius:0.25, density:5}); // create a few platforms sim.addBox({x:3, y:2, width:4, height:0.2, density:0, angle:0.1}); // make 26 dominoes for (var i:int = 0; i<7; i++){ //End sim.addCircle({x:1 + i * 1.5, y:16, radius:0.1, density:0}); sim.addCircle({x:2 + i * 1.5, y:15, radius:0.1, density:0}); //Mid end sim.addCircle({x:0 + i * 2, y:14, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:13, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:12, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:11, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:10, radius:0.1, density:0}); //Middle Start sim.addCircle({x:0 + i * 1.5, y:09, radius:0.1, density:0}); sim.addCircle({x:1 + i * 1.5, y:08, radius:0.1, density:0}); sim.addCircle({x:0 + i * 1.5, y:07, radius:0.1, density:0}); sim.addCircle({x:1 + i * 1.5, y:06, radius:0.1, density:0}); } if (MouseEvent.CLICK) { sim.addCircle({x:mouseX, y:1, radius:0.25, density:5}); sim.start(); /*sim.mouseDrag();*/ }

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Shallow Copy vs DeepCopy in C#.NET

Hope below example helps to understand the difference. Please drop a comment if any doubts. using System; using System.IO; using System.Runtime.Serialization.Formatters.Binary; namespace ShallowCopyVsDeepCopy { class Program { static void Main(string[] args) { var e1 = new Emp { EmpNo = 10, EmpName = "Smith", Department = new Dep { DeptNo = 100, DeptName = "Finance" } }; var e2 = e1.ShallowClone(); e1.Department.DeptName = "Accounts"; Console.WriteLine(e2.Department.DeptName); var e3 = new Emp { EmpNo = 10, EmpName = "Smith", Department = new Dep { DeptNo = 100, DeptName = "Finance" } }; var e4 = e3.DeepClone(); e3.Department.DeptName = "Accounts"; Console.WriteLine(e4.Department.DeptName); } } [Serializable] class Dep { public int DeptNo { get; set; } public String DeptName { get; set; } } [Serializable] class Emp { public int EmpNo { get; set; } public String EmpName { get; set; } public Dep Department { get; set; } public Emp ShallowClone() { return (Emp)this.MemberwiseClone(); } public Emp DeepClone() { MemoryStream ms = new MemoryStream(); BinaryFormatter bf = new BinaryFormatter(); bf.Serialize(ms, this); ms.Seek(0, SeekOrigin.Begin); object copy = bf.Deserialize(ms); ms.Close(); return copy as Emp; } } } span.fullpost {display:none;}

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Windows Azure Evolution – TFS Integration (WAWS Part 2)

- by Shaun

So this is the fourth blog post about the new features of Windows Azure and the second part of Windows Azure Web Sites. But this is not just focus on the WAWS since the function I’m going to introduce is available in both Windows Azure Web Sites and Windows Azure Cloud Service (a.k.a. hosted service). In the previous post I talked about the Windows Azure Web Sites and how to use its gallery to build a WordPress personal blog without coding. Besides the gallery we can create an empty web site and upload our website from vary approaches. And one of the highlighted feature here is that, we can make our web site integrated with a source control service, such as TFS and Git, so that it will be deployed automatically once a new commit or build available. Create New Empty Web Site In the developer portal when creating a new web site, we can select QUICK CREATE item. This will create an empty web site with only one shared instance without any database associated. Let’s specify the URL, region and subscription and click OK. After a few seconds our website will be ready. And now we can click the BROWSE button to open this empty website. As you can see there is a welcome page available in my website even thought I didn’t upload or deploy anything. This means even though the website will be charged even before anything was deployed, similar as the cloud service (hosted service). It is because once we created a website, Windows Azure platform had arranged a hosting process (w3wp.exe) in the group of virtual machines. Create Project in TFS Preview Service and Setup Link Currently the Windows Azure Web Sites can integrate with TFS and Git as its deployment source, and it only support the Microsoft TFS Preview Service for now. I will not deep into how to use the TFS preview service in this post but once we click into the website we had just created and then clicked the “Set up TFS publishing”, there will be a dialog helping us to connect to this service. If you don’t have an account you can click the link shown below to request one. Assuming we have already had an account of TFS service then we need to create a new project firstly. Go to your TFS service website and create a new project, giving the project name, description and the process template. Then, back to the developer portal and clicked the “Set up TFS publishing” link. In the popping up window I will provide my TFS service URL and click the “Authorize now” link. Click “Accept” button to allow my windows azure to connect to my TFS service. Then it will be back to the developer portal and list all projects in my account. Just select the one I had just created and click OK. Then our website is linking to the TFS project I specified and finally it will show similar like this below. This means the web site had been linked to the TFS successfully. Work with TFS Preview Service in VS2010 In the figure above there are some links to guide us how to connect to the TFS server through Visual Studio 2010 and 2012 RC. If you are using Visual Studio 2012 RC, you don’t need any extension. But if you are using Visual Studio 2010 you must have SP1 and KB2581206 installed. To connect to my TFS service just open the Visual Studio and in the Team Explorer, we can add a new TFS server and paste the URL of my TFS service from the developer portal. And select the project I had just created, then it will be listed in my Team Explorer. Now let’s start to build our website. Since the website we are going to build will be deployed to WAWS, it’s NOT a cloud service, NOT a web role. So in this case we need to create a normal ASP.NET web application. For example, an ASP.NET MVC 3 web application. Next, right click on the solution and select “Add Solution to Source Control”, select the project I had just created. Then check my code in. Once the check-in finished we can see that there is a build running in the TFS server. And if we back to the developer portal, we will see in our web site deployment page there’s a deployment running. In fact, once we linked our web site to our TFS then it will create a new build definition in our TFS project. It will be triggered by each check-in and deploy to the web site we linked automatically. So that when our code had been compiled it will be published to our web site from our TFS server. Once the build and deployment finished we can see it’s now active on our developer portal. Now we can see the web site that created from my Visual Studio and deployed by my TFS. Continue Deployment through VS and TFS A big benefit when using TFS publishing is the continue deployment. Now if I changed some code in my Visual Studio, for example update some text on the home page and check in my changes, then it will trigger an new build and deploy to my WAWS automatically. And even more, if we wanted to rollback to a previous version we can just select an existing deployment listed in the portal and click REDEPLOY at the bottom. Q&A: Can Web Site use Storage work with a Worker Role? Stacy asked a question in my previous post, which was “can a web site use Windows Azure Storage and furthermore working with a worker role”. Since the web site is deployed on the windows azure virtual machines in data center, it must be able to use all windows azure features such as the storage, SQL databases, CDN, etc.. But since when using web site we normally have a standard ASP.NET web application, PHP website or NodeJS, the windows azure SDK was not referenced by default. But we can add them by ourselves. In our sample project let’s right click on my MVC project and clicked the “Manage NuGet packages”. And in the dialog I will search windows azure packages and select the “Windows Azure Storage” to install. Then we will have the assemblies to access windows azure storage such as tables, queues and blobs. Since I have a storage account already, let’s have a quick demo, just to list all blobs in a container. The code would be like this. 1: using System; 2: using System.Collections.Generic; 3: using System.Linq; 4: using System.Web; 5: using System.Web.Mvc; 6: using Microsoft.WindowsAzure; 7: using Microsoft.WindowsAzure.StorageClient; 8: 9: namespace WAASTFSDemo.Controllers 10: { 11: public class HomeController : Controller 12: { 13: public ActionResult Index() 14: { 15: ViewBag.Message = "Welcome to Windows Azure!"; 16: 17: var credentials = new StorageCredentialsAccountAndKey("[STORAGE_ACCOUNT]", "[STORAGE_KEY]"); 18: var account = new CloudStorageAccount(credentials, false); 19: var client = account.CreateCloudBlobClient(); 20: var container = client.GetContainerReference("shared"); 21: ViewBag.Blobs = container.ListBlobs().Select(b => b.Uri.AbsoluteUri); 22: 23: return View(); 24: } 25: 26: public ActionResult About() 27: { 28: return View(); 29: } 30: } 31: } 1: @{ 2: ViewBag.Title = "Home Page"; 3: } 4: 5: <h2>@ViewBag.Message</h2> 6: <p> 7: To learn more about ASP.NET MVC visit <a href="http://asp.net/mvc" title="ASP.NET MVC Website">http://asp.net/mvc</a>. 8: </p> 9: <div> 10: <ul> 11: @foreach (var blob in ViewBag.Blobs) 12: { 13: <li>@blob</li> 14: } 15: </ul> 16: </div> And then just check in the code, it will be deployed to my web site. Finally we can see the blobs in my storage. This is just an example but it proves that web sites can connect to storage, table, blob and queue as well. So the answer to Stacy should be “yes”. The web site can use queue storage to work with worker role. Summary In this post I demonstrated how to integrate with TFS from Windows Azure Web Sites. You can see our website can be built, uploaded and deployed automatically by TFS service. All we need to do is to provide the TFS name and select the project. Not only the Windows Azure Web Site, in this upgrade the Windows Azure Cloud Services (hosted service) can be published through TFS as well. Very similar as what we have shown below. But currently, only Microsoft TFS Service Preview can be integrated with Windows Azure. But I think in the future we can link the TFS in our enterprise and some 3rd party TFS such as CodePlex to Windows Azure. Hope this helps, Shaun All documents and related graphics, codes are provided "AS IS" without warranty of any kind. Copyright © Shaun Ziyan Xu. This work is licensed under the Creative Commons License.

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Can I install two Ubuntu versions on the same machine?

- by Abh

Hello, I have Ubuntu 10.10 32 bit already installed on my machine..I am using MongoDB and it does not work properly with 32 bit machine. So I want to install 64 bit Ubuntu 10.10 on my system on another partition (so that I can have both 32 bit and 64 bit versions). Is it okay to install both 32 bit and 64 bit? I mean will it give any problems? On which partition should I install the 64 bit version? My partitions are as follows: Filesystem Size Used Avail Use% Mounted on /dev/sda1 37G 11G 25G 30% / none 1.4G 260K 1.4G 1% /dev none 1.4G 776K 1.4G 1% /dev/shm none 1.4G 244K 1.4G 1% /var/run none 1.4G 0 1.4G 0% /var/lock /dev/sda6 129G 73G 50G 60% /home /dev/sda7 127G 76G 45G 64% /vol Waiting for your replies.

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How do I install Dan's Guardian on 12.04?

- by Matt

I'm trying to install Dans Guardian on a virtual machine. The instructions ask me to run the ./configure script and then execute the command make install. The configure script runs fine but the make install throws errors. Making all in src make[2]: Entering directory `/webmin/dansguardian-2.10/src' g++ -DHAVE_CONFIG_H -I. -I.. -D__CONFFILE='"/usr/local/etc/dansguardian/dansguardian.conf"' -D__LOGLOCATION='"/usr/local/var/log/dansguardian/"' -D__PIDDIR='"/usr/local/var/run"' -D__PROXYUSER='"nobody"' -D__PROXYGROUP='"nobody"' -D__CONFDIR='"/usr/local/etc/dansguardian"' -g -O2 -MT dansguardian-fancy.o -MD -MP -MF .deps/dansguardian-fancy.Tpo -c -o dansguardian-fancy.o `test -f 'downloadmanagers/fancy.cpp' || echo './'`downloadmanagers/fancy.cpp downloadmanagers/fancy.cpp: In member function âstd::string fancydm::timestring(int)â: downloadmanagers/fancy.cpp:507:72: error: âsnprintfâ was not declared in this scope make[2]: *** [dansguardian-fancy.o] Error 1 make[2]: Leaving directory `/webmin/dansguardian-2.10/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/webmin/dansguardian-2.10' make: *** [all] Error 2 I'm running 12.04 LTS server x64

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How to handle "circular dependency" in dependency injection

- by Roel

The title says "Circular Dependency", but it is not the correct wording, because to me the design seems solid. However, consider the following scenario, where the blue parts are given from external partner, and orange is my own implementation. Also assume there is more then one ConcreteMain, but I want to use a specific one. (In reality, each class has some more dependencies, but I tried to simplify it here) I would like to instanciate all of this with Depency Injection (Unity), but I obviously get a StackOverflowException on the following code, because Runner tries to instantiate ConcreteMain, and ConcreteMain needs a Runner. IUnityContainer ioc = new UnityContainer(); ioc.RegisterType<IMain, ConcreteMain>() .RegisterType<IMainCallback, Runner>(); var runner = ioc.Resolve<Runner>(); How can I avouid this? Is there any way to structure this so that I can use it with DI? The scenario I'm doing now is setting everything up manually, but that puts a hard dependency on ConcreteMain in the class which instantiates it. This is what i'm trying to avoid (with Unity registrations in configuration). All source code below (very simplified example!); public class Program { public static void Main(string[] args) { IUnityContainer ioc = new UnityContainer(); ioc.RegisterType<IMain, ConcreteMain>() .RegisterType<IMainCallback, Runner>(); var runner = ioc.Resolve<Runner>(); Console.WriteLine("invoking runner..."); runner.DoSomethingAwesome(); Console.ReadLine(); } } public class Runner : IMainCallback { private readonly IMain mainServer; public Runner(IMain mainServer) { this.mainServer = mainServer; } public void DoSomethingAwesome() { Console.WriteLine("trying to do something awesome"); mainServer.DoSomething(); } public void SomethingIsDone(object something) { Console.WriteLine("hey look, something is finally done."); } } public interface IMain { void DoSomething(); } public interface IMainCallback { void SomethingIsDone(object something); } public abstract class AbstractMain : IMain { protected readonly IMainCallback callback; protected AbstractMain(IMainCallback callback) { this.callback = callback; } public abstract void DoSomething(); } public class ConcreteMain : AbstractMain { public ConcreteMain(IMainCallback callback) : base(callback){} public override void DoSomething() { Console.WriteLine("starting to do something..."); var task = Task.Factory.StartNew(() =>{ Thread.Sleep(5000);/*very long running task*/ }); task.ContinueWith(t => callback.SomethingIsDone(true)); } }

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Chef-solo cannot locate an nginx recipe template

- by crftr

I have been recently experimenting with Chef. I thought I would attempt to rebuild my personal web server using chef-solo. It's an AWS instance running the Amazon 64bit Linux AMI. My first objective is to install nginx. I have cloned the Opscode cookbook repository, and am using their nginx cookbook. My problem appears to be that chef-solo cannot find a template after it has started the process. The command I'm using is chef-solo -j /etc/chef/dna.json dna.json { "nginx": { "user": "ec2-user" }, "recipes": [ "nginx" ] } solo.rb file_cache_path "/var/chef-solo" cookbook_path "/var/chef-solo/cookbooks" ...the output [root@ip-10-202-221-135 chef-solo]# chef-solo -j /etc/chef/dna.json /usr/lib64/ruby/gems/1.9.1/gems/systemu-2.2.0/lib/systemu.rb:29: Use RbConfig instead of obsolete and deprecated Config. [Fri, 27 Jan 2012 19:41:36 +0000] INFO: *** Chef 0.10.8 *** [Fri, 27 Jan 2012 19:41:37 +0000] INFO: Setting the run_list to ["nginx"] from JSON [Fri, 27 Jan 2012 19:41:37 +0000] INFO: Run List is [recipe[nginx]] [Fri, 27 Jan 2012 19:41:37 +0000] INFO: Run List expands to [nginx] [Fri, 27 Jan 2012 19:41:37 +0000] INFO: Starting Chef Run for ip-10-202-221-135.ec2.internal [Fri, 27 Jan 2012 19:41:37 +0000] INFO: Running start handlers [Fri, 27 Jan 2012 19:41:37 +0000] INFO: Start handlers complete. [Fri, 27 Jan 2012 19:41:37 +0000] INFO: Missing gem 'mysql' [Fri, 27 Jan 2012 19:41:38 +0000] INFO: Processing package[nginx] action install (nginx::default line 21) [Fri, 27 Jan 2012 19:41:39 +0000] INFO: Processing directory[/var/log/nginx] action create (nginx::default line 23) [Fri, 27 Jan 2012 19:41:39 +0000] INFO: Processing template[/usr/sbin/nxensite] action create (nginx::default line 30) [Fri, 27 Jan 2012 19:41:39 +0000] INFO: Processing template[/usr/sbin/nxdissite] action create (nginx::default line 30) [Fri, 27 Jan 2012 19:41:39 +0000] INFO: Processing template[nginx.conf] action create (nginx::default line 38) [Fri, 27 Jan 2012 19:41:39 +0000] INFO: Processing template[/etc/nginx/sites-available/default] action create (nginx::default line 46) [Fri, 27 Jan 2012 19:41:39 +0000] INFO: template[/etc/nginx/sites-available/default] mode changed to 644 [Fri, 27 Jan 2012 19:41:39 +0000] ERROR: template[/etc/nginx/sites-available/default] (nginx::default line 46) has had an error [Fri, 27 Jan 2012 19:41:39 +0000] ERROR: template[/etc/nginx/sites-available/default] (/var/chef-solo/cookbooks/nginx/recipes/default.rb:46:in `from_file') had an error: template[/etc/nginx/sites-available/default] (nginx::default line 46) had an error: Errno::ENOENT: No such file or directory - (/tmp/chef-rendered-template20120127-29441-1yp55vz, /etc/nginx/sites-available/default) /usr/lib64/ruby/1.9.1/fileutils.rb:519:in `rename' /usr/lib64/ruby/1.9.1/fileutils.rb:519:in `block in mv' /usr/lib64/ruby/1.9.1/fileutils.rb:1515:in `block in fu_each_src_dest' /usr/lib64/ruby/1.9.1/fileutils.rb:1531:in `fu_each_src_dest0' /usr/lib64/ruby/1.9.1/fileutils.rb:1513:in `fu_each_src_dest' /usr/lib64/ruby/1.9.1/fileutils.rb:508:in `mv' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/provider/template.rb:47:in `block in action_create' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/mixin/template.rb:48:in `block in render_template' /usr/lib64/ruby/1.9.1/tempfile.rb:316:in `open' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/mixin/template.rb:45:in `render_template' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/provider/template.rb:99:in `render_with_context' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/provider/template.rb:39:in `action_create' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/resource.rb:440:in `run_action' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/runner.rb:45:in `run_action' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/runner.rb:81:in `block (2 levels) in converge' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/runner.rb:81:in `each' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/runner.rb:81:in `block in converge' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/resource_collection.rb:94:in `block in execute_each_resource' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/resource_collection/stepable_iterator.rb:116:in `call' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/resource_collection/stepable_iterator.rb:116:in `call_iterator_block' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/resource_collection/stepable_iterator.rb:85:in `step' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/resource_collection/stepable_iterator.rb:104:in `iterate' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/resource_collection/stepable_iterator.rb:55:in `each_with_index' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/resource_collection.rb:92:in `execute_each_resource' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/runner.rb:76:in `converge' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/client.rb:312:in `converge' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/client.rb:160:in `run' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/application/solo.rb:192:in `block in run_application' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/application/solo.rb:183:in `loop' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/application/solo.rb:183:in `run_application' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/lib/chef/application.rb:67:in `run' /usr/lib64/ruby/gems/1.9.1/gems/chef-0.10.8/bin/chef-solo:25:in `<top (required)>' /usr/bin/chef-solo:19:in `load' /usr/bin/chef-solo:19:in `<main>' [Fri, 27 Jan 2012 19:41:39 +0000] ERROR: Running exception handlers [Fri, 27 Jan 2012 19:41:39 +0000] ERROR: Exception handlers complete [Fri, 27 Jan 2012 19:41:39 +0000] FATAL: Stacktrace dumped to /var/chef-solo/chef-stacktrace.out [Fri, 27 Jan 2012 19:41:39 +0000] FATAL: Errno::ENOENT: template[/etc/nginx/sites-available/default] (nginx::default line 46) had an error: Errno::ENOENT: No such file or directory - (/tmp/chef-rendered-template20120127-29441-1yp55vz, /etc/nginx/sites-available/default) What am I doing incorrectly?

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sudo apt-get update error

- by Kapil Anand

I got the following error Reading package lists... Done W: GPG error: http://extras.ubuntu.com oneiric Release: Unknown error executing gpgv executing gpgv ---- W: GPG error: http://archive.ubuntu.com oneiric-updates Release: Unknown error executing gpgv Then after googling it i found and followed the following but that caused one error **sudo -i apt-get clean cd /var/lib/apt mv lists lists.old mkdir -p lists/partial apt-get clean apt-get update** while running i got the error " kapil@ubuntu:/var/lib/apt$ sudo mv lists lists.old mv: cannot move `lists' to `lists.old/lists': Directory not empty " so once again running the update command I got the same error again. Please help me what should i do?

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ls -l freezes terminal locally and remotely

- by Jakobud

I've been reading other SF threads regarding ls not returning results or freezing and stalling terminal sessions and it appears they usually the fault of network problems. My problem however, occurs both over remote SSH sessions but also if I am physically at the server itself... I just installed CentOS 5.4 on one of our servers. I'm setting up some rdiff-backup scripts and when I downloaded librsync and untared it, thats when I started seeing some weird behavior with ls -l. wget http://sourceforge.net/projects/librsync/files/librsync/0.9.7/librsync-0.9.7.tar.gz/download /tmp cd /tmp tar -xzf librsync-0.9.7.tar.gz Simple enough. To view the files in this directory I did this: ls results: librsync-0.9.7 librsync-0.9.7.tar.gz Now, if I ls -l, my terminal freezes. I have to re-ssh in to keep going. After reading SF threads, I thought it was network related. So I was extremely surprised to go sit down at the server itself and see the exact same thing happen... So its obviously not a network issues. Even if I ls /tmp/librsync-0.9.7, my terminal freezes just the same... Next I did an strace and got this (warning: wall of text coming....): strace ls -l /tmp execve("/bin/ls", ["ls", "-l", "/tmp"], [/* 21 vars */]) = 0 brk(0) = 0x1c521000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cc0000 uname({sys="Linux", node="massive.answeron.com", ...}) = 0 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=71746, ...}) = 0 mmap(NULL, 71746, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2b8582cc1000 close(3) = 0 open("/lib64/librt.so.1", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 \"\200\2730\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=53448, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cd3000 mmap(0x30bb800000, 2132936, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30bb800000 mprotect(0x30bb807000, 2097152, PROT_NONE) = 0 mmap(0x30bba07000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x30bba07000 close(3) = 0 open("/lib64/libacl.so.1", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\31@\2740\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=28008, ...}) = 0 mmap(0x30bc400000, 2120992, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30bc400000 mprotect(0x30bc406000, 2093056, PROT_NONE) = 0 mmap(0x30bc605000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5000) = 0x30bc605000 close(3) = 0 open("/lib64/libselinux.so.1", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`E\300\2730\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=95464, ...}) = 0 mmap(0x30bbc00000, 2192784, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30bbc00000 mprotect(0x30bbc15000, 2097152, PROT_NONE) = 0 mmap(0x30bbe15000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x15000) = 0x30bbe15000 mmap(0x30bbe17000, 1424, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x30bbe17000 close(3) = 0 open("/lib64/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220\332\201\2720\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1717800, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cd4000 mmap(0x30ba800000, 3498328, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30ba800000 mprotect(0x30ba94d000, 2097152, PROT_NONE) = 0 mmap(0x30bab4d000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14d000) = 0x30bab4d000 mmap(0x30bab52000, 16728, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x30bab52000 close(3) = 0 open("/lib64/libpthread.so.0", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220W\0\2730\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=145824, ...}) = 0 mmap(0x30bb000000, 2204528, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30bb000000 mprotect(0x30bb016000, 2093056, PROT_NONE) = 0 mmap(0x30bb215000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x15000) = 0x30bb215000 mmap(0x30bb217000, 13168, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x30bb217000 close(3) = 0 open("/lib64/libattr.so.1", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\17\300\2750\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=17888, ...}) = 0 mmap(0x30bdc00000, 2110728, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30bdc00000 mprotect(0x30bdc04000, 2093056, PROT_NONE) = 0 mmap(0x30bde03000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x30bde03000 close(3) = 0 open("/lib64/libdl.so.2", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\16\300\2720\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=23360, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cd5000 mmap(0x30bac00000, 2109696, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30bac00000 mprotect(0x30bac02000, 2097152, PROT_NONE) = 0 mmap(0x30bae02000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x30bae02000 close(3) = 0 open("/lib64/libsepol.so.1", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0=\0\2740\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=247496, ...}) = 0 mmap(0x30bc000000, 2383136, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30bc000000 mprotect(0x30bc03b000, 2097152, PROT_NONE) = 0 mmap(0x30bc23b000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3b000) = 0x30bc23b000 mmap(0x30bc23c000, 40224, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x30bc23c000 close(3) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cd6000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cd7000 arch_prctl(ARCH_SET_FS, 0x2b8582cd6c50) = 0 mprotect(0x30bba07000, 4096, PROT_READ) = 0 mprotect(0x30bab4d000, 16384, PROT_READ) = 0 mprotect(0x30bb215000, 4096, PROT_READ) = 0 mprotect(0x30ba61b000, 4096, PROT_READ) = 0 mprotect(0x30bae02000, 4096, PROT_READ) = 0 munmap(0x2b8582cc1000, 71746) = 0 set_tid_address(0x2b8582cd6ce0) = 24102 set_robust_list(0x2b8582cd6cf0, 0x18) = 0 futex(0x7fff72d02d6c, FUTEX_WAKE_PRIVATE, 1) = 0 rt_sigaction(SIGRTMIN, {0x30bb005370, [], SA_RESTORER|SA_SIGINFO, 0x30bb00e7c0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {0x30bb0052b0, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x30bb00e7c0}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 getrlimit(RLIMIT_STACK, {rlim_cur=10240*1024, rlim_max=RLIM_INFINITY}) = 0 access("/etc/selinux/", F_OK) = 0 brk(0) = 0x1c521000 brk(0x1c542000) = 0x1c542000 open("/etc/selinux/config", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=448, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cc1000 read(3, "# This file controls the state o"..., 4096) = 448 read(3, "", 4096) = 0 close(3) = 0 munmap(0x2b8582cc1000, 4096) = 0 open("/proc/mounts", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cc1000 read(3, "rootfs / rootfs rw 0 0\n/dev/root"..., 4096) = 577 close(3) = 0 munmap(0x2b8582cc1000, 4096) = 0 open("/selinux/mls", O_RDONLY) = 3 read(3, "1", 19) = 1 close(3) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 3 connect(3, {sa_family=AF_FILE, path="/var/run/setrans/.setrans-unix"...}, 110) = 0 sendmsg(3, {msg_name(0)=NULL, msg_iov(5)=[{"\1\0\0\0", 4}, {"\1\0\0\0", 4}, {"\1\0\0\0", 4}, {"\0", 1}, {"\0", 1}], msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 14 readv(3, [{"\1\0\0\0", 4}, {"\1\0\0\0", 4}, {"\0\0\0\0", 4}], 3) = 12 readv(3, [{"\0", 1}], 1) = 1 close(3) = 0 open("/usr/lib/locale/locale-archive", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=56413824, ...}) = 0 mmap(NULL, 56413824, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2b8582cd8000 close(3) = 0 ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0 ioctl(1, TIOCGWINSZ, {ws_row=65, ws_col=137, ws_xpixel=0, ws_ypixel=0}) = 0 open("/usr/share/locale/locale.alias", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=2528, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(3, "# Locale name alias data base.\n#"..., 4096) = 2528 read(3, "", 4096) = 0 close(3) = 0 munmap(0x2b85862a5000, 4096) = 0 open("/usr/share/locale/en_US.UTF-8/LC_TIME/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en_US.utf8/LC_TIME/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en_US/LC_TIME/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en.UTF-8/LC_TIME/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en.utf8/LC_TIME/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en/LC_TIME/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory) lstat("/tmp", {st_mode=S_IFDIR|S_ISVTX|0777, st_size=4096, ...}) = 0 getxattr("/tmp", "system.posix_acl_access", 0x0, 0) = -1 ENODATA (No data available) getxattr("/tmp", "system.posix_acl_default", 0x0, 0) = -1 ENODATA (No data available) socket(PF_FILE, SOCK_STREAM, 0) = 3 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(3) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 3 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(3) = 0 open("/etc/nsswitch.conf", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=1711, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(3, "#\n# /etc/nsswitch.conf\n#\n# An ex"..., 4096) = 1711 read(3, "", 4096) = 0 close(3) = 0 munmap(0x2b85862a5000, 4096) = 0 open("/etc/ld.so.cache", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=71746, ...}) = 0 mmap(NULL, 71746, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2b85862a5000 close(3) = 0 open("/lib64/libnss_files.so.2", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340\37\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=53880, ...}) = 0 mmap(NULL, 2139432, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x2b85862b7000 mprotect(0x2b85862c1000, 2093056, PROT_NONE) = 0 mmap(0x2b85864c0000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x9000) = 0x2b85864c0000 close(3) = 0 mprotect(0x2b85864c0000, 4096, PROT_READ) = 0 munmap(0x2b85862a5000, 71746) = 0 open("/etc/passwd", O_RDONLY) = 3 fcntl(3, F_GETFD) = 0 fcntl(3, F_SETFD, FD_CLOEXEC) = 0 fstat(3, {st_mode=S_IFREG|0644, st_size=1823, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(3, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 1823 close(3) = 0 munmap(0x2b85862a5000, 4096) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 3 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(3) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 3 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(3) = 0 open("/etc/group", O_RDONLY) = 3 fcntl(3, F_GETFD) = 0 fcntl(3, F_SETFD, FD_CLOEXEC) = 0 fstat(3, {st_mode=S_IFREG|0644, st_size=743, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(3, "root:x:0:root\nbin:x:1:root,bin,d"..., 4096) = 743 close(3) = 0 munmap(0x2b85862a5000, 4096) = 0 open("/tmp", O_RDONLY|O_NONBLOCK|O_DIRECTORY) = 3 fcntl(3, F_SETFD, FD_CLOEXEC) = 0 getdents(3, /* 8 entries */, 32768) = 264 lstat("/tmp/librsync-0.9.7.tar.gz", {st_mode=S_IFREG|0644, st_size=453802, ...}) = 0 getxattr("/tmp/librsync-0.9.7.tar.gz", "system.posix_acl_access", 0x0, 0) = -1 ENODATA (No data available) getxattr("/tmp/librsync-0.9.7.tar.gz", "system.posix_acl_default", 0x0, 0) = -1 ENODATA (No data available) lstat("/tmp/librsync-0.9.7", {st_mode=S_IFDIR|0777, st_size=4096, ...}) = 0 getxattr("/tmp/librsync-0.9.7", "system.posix_acl_access", 0x0, 0) = -1 ENODATA (No data available) getxattr("/tmp/librsync-0.9.7", "system.posix_acl_default", 0x0, 0) = -1 ENODATA (No data available) open("/etc/passwd", O_RDONLY) = 4 fcntl(4, F_GETFD) = 0 fcntl(4, F_SETFD, FD_CLOEXEC) = 0 fstat(4, {st_mode=S_IFREG|0644, st_size=1823, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 1823 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 open("/etc/ld.so.cache", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=71746, ...}) = 0 mmap(NULL, 71746, PROT_READ, MAP_PRIVATE, 4, 0) = 0x2b85862a5000 close(4) = 0 open("/lib64/libnss_ldap.so.2", O_RDONLY) = 4 read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300r\4\0\0\0\0\0"..., 832) = 832 fstat(4, {st_mode=S_IFREG|0755, st_size=3169960, ...}) = 0 mmap(NULL, 5329912, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x2b85864c2000 mprotect(0x2b858679e000, 2093056, PROT_NONE) = 0 mmap(0x2b858699d000, 176128, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x2db000) = 0x2b858699d000 mmap(0x2b85869c8000, 62456, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2b85869c8000 close(4) = 0 open("/lib64/libcom_err.so.2", O_RDONLY) = 4 read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\n\300\2770\0\0\0"..., 832) = 832 fstat(4, {st_mode=S_IFREG|0755, st_size=10000, ...}) = 0 mmap(0x30bfc00000, 2103048, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x30bfc00000 mprotect(0x30bfc02000, 2093056, PROT_NONE) = 0 mmap(0x30bfe01000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x1000) = 0x30bfe01000 close(4) = 0 open("/lib64/libkeyutils.so.1", O_RDONLY) = 4 read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\n@\2760\0\0\0"..., 832) = 832 fstat(4, {st_mode=S_IFREG|0755, st_size=9472, ...}) = 0 mmap(0x30be400000, 2102416, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x30be400000 mprotect(0x30be402000, 2093056, PROT_NONE) = 0 mmap(0x30be601000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x1000) = 0x30be601000 close(4) = 0 open("/lib64/libresolv.so.2", O_RDONLY) = 4 read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\2402\0\2760\0\0\0"..., 832) = 832 fstat(4, {st_mode=S_IFREG|0755, st_size=92736, ...}) = 0 mmap(0x30be000000, 2181864, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x30be000000 mprotect(0x30be011000, 2097152, PROT_NONE) = 0 mmap(0x30be211000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x11000) = 0x30be211000 mmap(0x30be213000, 6888, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x30be213000 close(4) = 0 mprotect(0x30be211000, 4096, PROT_READ) = 0 munmap(0x2b85862a5000, 71746) = 0 rt_sigaction(SIGPIPE, {0x1, [], SA_RESTORER, 0x30ba8302d0}, {SIG_DFL, [], 0}, 8) = 0 geteuid() = 0 futex(0x2b85869c7708, FUTEX_WAKE_PRIVATE, 2147483647) = 0 open("/etc/ldap.conf", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=9119, ...}) = 0 fstat(4, {st_mode=S_IFREG|0644, st_size=9119, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "# @(#)$Id: ldap.conf,v 1.38 2006"..., 4096) = 4096 read(4, "Use the OpenLDAP password change"..., 4096) = 4096 read(4, " OpenLDAP 2.0 and earlier is \"no"..., 4096) = 927 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 uname({sys="Linux", node="massive.answeron.com", ...}) = 0 open("/etc/resolv.conf", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=107, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "; generated by /sbin/dhclient-sc"..., 4096) = 107 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 4 fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(4) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 4 fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(4) = 0 open("/etc/host.conf", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=17, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "order hosts,bind\n", 4096) = 17 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 futex(0x30bab54d44, FUTEX_WAKE_PRIVATE, 2147483647) = 0 open("/etc/hosts", O_RDONLY) = 4 fcntl(4, F_GETFD) = 0 fcntl(4, F_SETFD, FD_CLOEXEC) = 0 fstat(4, {st_mode=S_IFREG|0644, st_size=187, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "# Do not remove the following li"..., 4096) = 187 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 open("/etc/ld.so.cache", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=71746, ...}) = 0 mmap(NULL, 71746, PROT_READ, MAP_PRIVATE, 4, 0) = 0x2b85862a5000 close(4) = 0 open("/lib64/libnss_dns.so.2", O_RDONLY) = 4 read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340\17\0\0\0\0\0\0"..., 832) = 832 fstat(4, {st_mode=S_IFREG|0755, st_size=23736, ...}) = 0 mmap(NULL, 2113792, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x2b85869d8000 mprotect(0x2b85869dc000, 2093056, PROT_NONE) = 0 mmap(0x2b8586bdb000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x3000) = 0x2b8586bdb000 close(4) = 0 mprotect(0x2b8586bdb000, 4096, PROT_READ) = 0 munmap(0x2b85862a5000, 71746) = 0 socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4 connect(4, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("192.168.10.20")}, 28) = 0 fcntl(4, F_GETFL) = 0x2 (flags O_RDWR) fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 gettimeofday({1276265920, 823870}, NULL) = 0 poll([{fd=4, events=POLLOUT}], 1, 0) = 1 ([{fd=4, revents=POLLOUT}]) sendto(4, "C\v\1\0\0\1\0\0\0\0\0\0\7massive\10answeron\3co"..., 38, MSG_NOSIGNAL, NULL, 0) = 38 poll([{fd=4, events=POLLIN}], 1, 5000) = 1 ([{fd=4, revents=POLLIN}]) ioctl(4, FIONREAD, [122]) = 0 recvfrom(4, "C\v\205\200\0\1\0\1\0\2\0\2\7massive\10answeron\3co"..., 1024, 0, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("192.168.10.20")}, [16]) = 122 close(4) = 0 open("/etc/openldap/ldap.conf", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=335, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "#\n# LDAP Defaults\n#\n\n# See ldap."..., 4096) = 335 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 getuid() = 0 geteuid() = 0 getgid() = 0 getegid() = 0 open("/root/ldaprc", O_RDONLY) = -1 ENOENT (No such file or directory) open("/root/.ldaprc", O_RDONLY) = -1 ENOENT (No such file or directory) stat("/etc/ldap.conf", {st_mode=S_IFREG|0644, st_size=9119, ...}) = 0 geteuid() = 0 brk(0x1c566000) = 0x1c566000 open("/etc/hosts", O_RDONLY) = 4 fcntl(4, F_GETFD) = 0 fcntl(4, F_SETFD, FD_CLOEXEC) = 0 fstat(4, {st_mode=S_IFREG|0644, st_size=187, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "# Do not remove the following li"..., 4096) = 187 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 open("/etc/hosts", O_RDONLY) = 4 fcntl(4, F_GETFD) = 0 fcntl(4, F_SETFD, FD_CLOEXEC) = 0 fstat(4, {st_mode=S_IFREG|0644, st_size=187, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "# Do not remove the following li"..., 4096) = 187 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4 connect(4, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("192.168.10.20")}, 28) = 0 fcntl(4, F_GETFL) = 0x2 (flags O_RDWR) fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 gettimeofday({1276265920, 855948}, NULL) = 0 poll([{fd=4, events=POLLOUT}], 1, 0) = 1 ([{fd=4, revents=POLLOUT}]) sendto(4, "\32 \1\0\0\1\0\0\0\0\0\0\4ldap\10answeron\3com\0\0"..., 35, MSG_NOSIGNAL, NULL, 0) = 35 poll([{fd=4, events=POLLIN}], 1, 5000) = 1 ([{fd=4, revents=POLLIN}]) ioctl(4, FIONREAD, [104]) = 0 recvfrom(4, "\32 \205\200\0\1\0\1\0\1\0\0\4ldap\10answeron\3com\0\0"..., 1024, 0, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("192.168.10.20")}, [16]) = 104 close(4) = 0 socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4 connect(4, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("192.168.10.20")}, 28) = 0 fcntl(4, F_GETFL) = 0x2 (flags O_RDWR) fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 gettimeofday({1276265920, 858536}, NULL) = 0 poll([{fd=4, events=POLLOUT}], 1, 0) = 1 ([{fd=4, revents=POLLOUT}]) sendto(4, "I\375\1\0\0\1\0\0\0\0\0\0\4ldap\10answeron\3com\0\0"..., 35, MSG_NOSIGNAL, NULL, 0) = 35 poll([{fd=4, events=POLLIN}], 1, 5000) = 1 ([{fd=4, revents=POLLIN}]) ioctl(4, FIONREAD, [139]) = 0 recvfrom(4, "I\375\205\200\0\1\0\2\0\2\0\2\4ldap\10answeron\3com\0\0"..., 1024, 0, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("192.168.10.20")}, [16]) = 139 close(4) = 0 socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 4 fcntl(4, F_SETFD, FD_CLOEXEC) = 0 setsockopt(4, SOL_SOCKET, SO_KEEPALIVE, [1], 4) = 0 setsockopt(4, SOL_TCP, TCP_NODELAY, [1], 4) = 0 fcntl(4, F_GETFL) = 0x2 (flags O_RDWR) fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(4, {sa_family=AF_INET, sin_port=htons(389), sin_addr=inet_addr("10.20.0.30")}, 16) = -1 EINPROGRESS (Operation now in progress) poll([{fd=4, events=POLLOUT|POLLERR|POLLHUP}], 1, 120000 And thats where it stops, right there after that last 120000.... Using strace, I can obviously CTRL+C to keep going. But like I said, normally the terminal completely freezes. Anyone have any clues?

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