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  • Object-Oriented Operating System

    - by nmagerko
    As I thought about writing an operating system, I came across a point that I really couldn't figure out on my own: Can an operating system truly be written in an Object-Oriented Programming (OOP) Language? Being that these types of languages do not allow for direct accessing of memory, wouldn't this make it impossible for a developer to write an entire operating system using only an OOP Language? Take, for example, the Android Operating System that runs many phones and some tablets in use around the world. I believe that this operating system uses only Java, an Object-Oriented language. In Java, I have been unsuccessful in trying to point at and manipulate a specific memory address that the run-time environment (JRE) has not assigned to my program implicitly. In C, C++, and other non-OOP languages, I can do this in a few lines. So this makes me question whether or not an operating system can be written in an OOP, especially Java. Any counterexamples or other information is appreciated.

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  • System.Threading.ThreadAbortException executing WCF service

    - by SURESH GIRIRAJAN
    In one of our prod server we recently ran into issue when we went and update the web.config and try to browse the service. We started seeing the service was not responding and getting the following warning in the application log. Our service is WCF service, BizTalk orchestration exposed as service. We have other prod server where we never ran into this issue, so what’s different with this server. After going thru lot of forum and came up on some Microsoft service pack and hot fix which related to FCN. But I don’t want to apply any patch on this server then we need to do on all the other servers too. So solution is simple, I dropped the existing website, created a new site with different name with updated web.config browse the service. Then dropped that site and recreate the original web site and it worked fine without any issue. Event Viewer:  Event Type:        Warning Event Source:    ASP.NET 2.0.50727.0 Event Category:                Web Event Event ID:              1309 Date:                     6/6/2011 Time:                    5:41:42 PM User:                     N/A Computer:          PRODP02 Description: Event code: 3005 Event message: An unhandled exception has occurred. Event time: 6/6/2011 5:41:42 PM Event time (UTC): 6/6/2011 9:41:42 PM Event ID: a71769f42b304355a58c482bfec267f2 Event sequence: 3 Event occurrence: 1 Event detail code: 0  Application information:     Application domain: /LM/W3SVC/518296899/ROOT/PortArrivals-2-129518698821558995     Trust level: Full     Application Virtual Path: /TESTSVC     Application Path: D:\inetpub\wwwroot\RFID\TESTSVC\     Machine name: PRODP02  Process information:     Process ID: 8752     Process name: w3wp.exe     Account name: domain\BizTalk_Svc_Hostlso  Exception information:     Exception type: ThreadAbortException     Exception message: Thread was being aborted.  Request information:     Request URL: http://localhost:81/TESTSVC/TESTSVCS.svc     Request path: /TESTSVC/TESTSVCS.svc     User host address: 127.0.0.1     User:      Is authenticated: False     Authentication Type:      Thread account name: domain\BizTalk_Svc_Hostlso  Thread information:     Thread ID: 22     Thread account name: domain\BizTalk_Svc_Hostlso     Is impersonating: False     Stack trace:    at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)    at System.Web.HttpApplication.ApplicationStepManager.ResumeSteps(Exception error)  at System.Web.HttpApplication.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData)    at System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr)  <Description>Handling an exception.</Description> <AppDomain>/LM/W3SVC/518296899/ROOT/TESTSVC-6-129518741899334691</AppDomain> <Exception> <ExceptionType>System.Threading.ThreadAbortException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType> <Message>Thread was being aborted.</Message> <StackTrace> at System.Threading.Monitor.Enter(Object obj) at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath) at System.ServiceModel.ServiceHostingEnvironment.EnsureServiceAvailableFast(String relativeVirtualPath) at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.HandleRequest() at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.BeginRequest() at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.OnBeginRequest(Object state) at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.Invoke2() at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.Invoke() at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.ProcessCallbacks() at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.CompletionCallback(Object state) at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.ScheduledOverlapped.IOCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped) at System.ServiceModel.Diagnostics.Utility.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped) </StackTrace> <ExceptionString>System.Threading.ThreadAbortException: Thread was being aborted.    at System.Threading.Monitor.Enter(Object obj)    at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath)    at System.ServiceModel.ServiceHostingEnvironment.EnsureServiceAvailableFast(String relativeVirtualPath)    at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.HandleRequest()    at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.BeginRequest()    at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.OnBeginRequest(Object state)    at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.Invoke2()    at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.Invoke()    at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.ProcessCallbacks()    at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.CompletionCallback(Object state)    at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.ScheduledOverlapped.IOCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped)    at System.ServiceModel.Diagnostics.Utility.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped)</ExceptionString>

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  • How to make designer generated .Net application settings portable

    - by Ville Koskinen
    Hello, I've been looking at modifying the source of the Doppler podcast aggregator with the goal of being able to run the program directly from my mp3 player. Doppler stores application settings using a Visual Studio designer generated Settings class, which by default serializes user settings to the user's home directory. I'd like to change this so that all settings would be stored in the same directory as the exe. It seems that this would be possible by creating a custom provider class which inherits the SettingsProvider class. Has anyone created such a provider and would like to share code? Update: I was able to get a custom settings provider nearly working by using this MSDN sample, i.e. with simple inheritance. I was initially confused as Windows Forms designer stopped working until I did this trick suggested at Codeproject: internal sealed partial class Settings { private MySettingsProvider settingsprovider = new MySettingsProvider(); public Settings() { foreach (SettingsProperty property in this.Properties) { property.Provider = settingsprovider; } ... The program still starts with window size 0;0 though. Anyone with any insight to this? Why the need to assing the provider in runtime---instead of using attributes as suggested by MSDN? Why the changes in how the default settings are passed to the application with the default settings provider vs. the custom one?

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  • iPhone Settings app and keyboard control?

    - by randallmeadows
    So I'm putting my app's preference settings into the Settings app. One of the settings is an edit text field (PSTextFieldSpecifier). When touched, the keyboard dutifully appears, I can make the edits, but when I press Return....nothing. Well, the editing is completed, but the keyboard remains. I see no way to make the keyboard go away. I also notice this same behavior in other Settings panes, including those from Apple. Do I assume correctly that this is just standard behavior and I need to just accept the fact that my Settings table has now been reduced to half size, and just deal? Furthermore, I gather there is no approved way to have a "rich" child pane display, such as that seen in Settings-General-About-Legal? Or a way to do what appears to be a -presentModalViewController, a la Settings-General-Passcode Lock?

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  • Accidentally uninstalled Ubuntu 14.04 system settings. How to get them back?

    - by Dan
    Somehow, cleaning up useless software (using software center), I uninstalled Ubuntu "system settings". I did this by mistake. Now I fail to find system settings application using software center (and there are so many items in history...). It seems strange to me because usually when I try to uninstall something critical (system testing for example), the dependencies manager tells me It will uninstall the whole desktop system then. I am sure I did not have that warning. So I need the name of the software to install or a command line command rather than a system restore to get it back. Very interesting thing. If you ever want to play with this and reproduce it, you will be confused to see Ubuntu Mobile system settings instead! Yes, mobile network and touchscreen settings! Happy pre-release viewing!

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  • What's the diffrence btw System property and system environment variable

    - by khue
    Hi all I am not clear about this. When I run a java App or run an Applet in applet viewer,( in the IDE environment), System.getProperty("java.class.path") give me the same as System.getenv("CLASSPATH"), which is the CLASSPATH env variable defined. But when I deploy my applet to webserver and access it from the same computer as a client, I get different result for the two (System.getProperty("java.class.path") only point to jre home and System.getenv("CLASSPATH") return null). And here is some other things that make me wonder: For the applet part, the env var JAVA_HOME, i get the same result when deploying the applet in a browser as well as Applet Viewer. And if I define myself a env variable at system level, and use getenv("envName") the result is null. Is there anyway I can define one and get it in my java program? Thanks a lot Regards K.

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  • Android SQLiteConstraintException: error code 19: constraint failed

    - by Tom D
    I've seen other questions about this exception, but all of them seem to be resolved with the solution that a row with the primary key specified already exists. This doesn't seem to be the case for me. I have tried replacing all single quotes in my strings with double quotes, but the same problem occurs. I'm trying to insert a row into the Settings table of the SQLite database I've created by doing the following: db.execSQL("DROP TABLE IF EXISTS "+Settings.SETTINGS_TABLE_NAME + ";"); db.execSQL(CREATE_MEDIA_TABLE); db.execSQL(CREATE_SETTINGS_TABLE); Cursor c = getAllSettings(); //If there isn't already a settings row, create a row full of defaults if(c.getCount()==0){ ContentValues cv = new ContentValues(); cv.put(Settings.SETTING_UNIQUE_ID, "'"+Settings.uniqueID+"'"); cv.put(Settings.SETTING_DEVICE_ID, Settings.SETTING_DEVICE_ID_DEFAULT); cv.put(Settings.SETTING_CONNECTION_PREFERENCE, Settings.SETTING_CONNECTION_PREFERENCE_DEFAULT); cv.put(Settings.SETTING_AD_HOC_ENABLED, Settings.SETTING_AD_HOC_ENABLED_DEFAULT); cv.put(Settings.SETTING_SERVER_ADDRESS, Settings.SETTING_SERVER_ADDRESS_DEFAULT); cv.put(Settings.SETTING_RECORDING_MODE, Settings.SETTING_RECORDING_MODE_DEFAULT); cv.put(Settings.SETTING_PREVIEW_ENABLED, Settings.SETTING_PREVIEW_ENABLED_DEFAULT); cv.put(Settings.SETTING_PICTURE_RESOLUTION_X, Settings.SETTING_PICTURE_RESOLUTION_X_DEFAULT); cv.put(Settings.SETTING_PICTURE_RESOLUTION_Y, Settings.SETTING_PICTURE_RESOLUTION_Y_DEFAULT); cv.put(Settings.SETTING_VIDEO_RESOLUTION_X, Settings.SETTING_VIDEO_RESOLUTION_X_DEFAULT); cv.put(Settings.SETTING_VIDEO_RESOLUTION_Y, Settings.SETTING_VIDEO_RESOLUTION_Y_DEFAULT); cv.put(Settings.SETTING_VIDEO_FPS, Settings.SETTING_VIDEO_FPS_DEFAULT); cv.put(Settings.SETTING_AUDIO_BITRATE_KBPS, Settings.SETTING_AUDIO_BITRATE_KBPS_DEFAULT); cv.put(Settings.SETTING_STORE_TO_SD, Settings.SETTING_STORE_TO_SD_DEFAULT); cv.put(Settings.SETTING_STORAGE_LIMIT_MB, Settings.SETTING_STORAGE_LIMIT_MB_DEFAULT); this.db.insert(Settings.SETTINGS_TABLE_NAME, null, cv); } The CREATE_SETTINGS_TABLE string is defined as the following: private static String CREATE_SETTINGS_TABLE = "CREATE TABLE IF NOT EXISTS " + Settings.SETTINGS_TABLE_NAME + "(" + Settings.SETTING_UNIQUE_ID + " TEXT NOT NULL PRIMARY KEY, " + Settings.SETTING_DEVICE_ID + " TEXT NOT NULL , " + Settings.SETTING_CONNECTION_PREFERENCE + " TEXT NOT NULL CHECK("+Settings.SETTING_CONNECTION_PREFERENCE+" IN("+Settings.SETTING_CONNECTION_PREFERENCE_ALLOWED+")), " + Settings.SETTING_AD_HOC_ENABLED + " TEXT NOT NULL CHECK("+Settings.SETTING_AD_HOC_ENABLED+" IN("+Settings.SETTING_AD_HOC_ENABLED_ALLOWED+")), " + Settings.SETTING_SERVER_ADDRESS + " TEXT NOT NULL, " + Settings.SETTING_RECORDING_MODE + " TEXT NOT NULL CHECK("+Settings.SETTING_RECORDING_MODE+" IN("+Settings.SETTING_RECORDING_MODE_ALLOWED+")), " + Settings.SETTING_PREVIEW_ENABLED + " TEXT NOT NULL CHECK("+Settings.SETTING_PREVIEW_ENABLED+" IN("+Settings.SETTING_PREVIEW_ENABLED_ALLOWED+")), " + Settings.SETTING_PICTURE_RESOLUTION_X + " TEXT NOT NULL, " + Settings.SETTING_PICTURE_RESOLUTION_Y + " TEXT NOT NULL, " + Settings.SETTING_VIDEO_RESOLUTION_X + " TEXT NOT NULL, " + Settings.SETTING_VIDEO_RESOLUTION_Y + " TEXT NOT NULL, " + Settings.SETTING_VIDEO_FPS + " TEXT NOT NULL, " + Settings.SETTING_AUDIO_BITRATE_KBPS + " TEXT NOT NULL, " + Settings.SETTING_STORE_TO_SD + " TEXT NOT NULL CHECK("+Settings.SETTING_STORE_TO_SD+" IN("+Settings.SETTING_STORE_TO_SD_ALLOWED+")), " + Settings.SETTING_STORAGE_LIMIT_MB + " TEXT NOT NULL )"; However, when I execute my insert, I always get: 03-19 19:37:36.974: ERROR/Database(386): Error inserting server_address='0.0.0.0' storage_limit='-1' connection='none' preview_enabled='0' sd_enabled='1' video_fps='15' audio_bitrate='96' device_id='-1' recording_mode='none' picture_resolution_x='-1' picture_resolution_y='-1' unique_id='000000000000000' adhoc_enable='0' video_resolution_x='320' video_resolution_y='240' 03-19 19:45:34.284: ERROR/Database(446): android.database.sqlite.SQLiteConstraintException: error code 19: constraint failed It seems as if all the columns in my insert are not null. The row's primary key HAS to be unique, because it's the only row in the table. Therefore, the only thing I can think of is my CHECK conditions aren't true. Here are the predefined strings I'm using: public static final String SETTING_UNIQUE_ID = "unique_id"; public static final String SETTING_DEVICE_ID = "device_id"; public static final String SETTING_DEVICE_ID_DEFAULT = "'-1'"; public static final String SETTING_CONNECTION_PREFERENCE = "connection"; public static final String SETTING_CONNECTION_PREFERENCE_3G = "'3g'"; public static final String SETTING_CONNECTION_PREFERENCE_WIFI = "'wifi'"; public static final String SETTING_CONNECTION_PREFERENCE_NONE = "'none'"; public static final String SETTING_CONNECTION_PREFERENCE_ALLOWED = SETTING_CONNECTION_PREFERENCE_3G+","+SETTING_CONNECTION_PREFERENCE_WIFI+","+SETTING_CONNECTION_PREFERENCE_NONE; public static final String SETTING_CONNECTION_PREFERENCE_DEFAULT = SETTING_CONNECTION_PREFERENCE_NONE; public static final String SETTING_AD_HOC_ENABLED = "adhoc_enable"; public static final String SETTING_AD_HOC_ENABLED_ALLOWED = TRUE+","+FALSE; public static final String SETTING_AD_HOC_ENABLED_DEFAULT = FALSE; public static final String SETTING_SERVER_ADDRESS = "server_address"; public static final String SETTING_SERVER_ADDRESS_DEFAULT = "'0.0.0.0'"; public static final String SETTING_RECORDING_MODE = "recording_mode"; public static final String SETTING_RECORDING_MODE_VIDEO = "'video'"; public static final String SETTING_RECORDING_MODE_AUDIO = "'audio'"; public static final String SETTING_RECORDING_MODE_PICTURE = "'picture'"; public static final String SETTING_RECORDING_MODE_NONE = "'none'"; public static final String SETTING_RECORDING_MODE_ALLOWED = SETTING_RECORDING_MODE_VIDEO+","+SETTING_RECORDING_MODE_AUDIO+","+SETTING_RECORDING_MODE_PICTURE+","+SETTING_RECORDING_MODE_NONE; public static final String SETTING_RECORDING_MODE_DEFAULT = SETTING_RECORDING_MODE_NONE; public static final String SETTING_PREVIEW_ENABLED = "preview_enabled"; public static final String SETTING_PREVIEW_ENABLED_ALLOWED = TRUE+","+FALSE; public static final String SETTING_PREVIEW_ENABLED_DEFAULT = FALSE; public static final String SETTING_PICTURE_RESOLUTION_X = "picture_resolution_x"; public static final String SETTING_PICTURE_RESOLUTION_X_DEFAULT = "'-1'"; public static final String SETTING_PICTURE_RESOLUTION_Y = "picture_resolution_y"; public static final String SETTING_PICTURE_RESOLUTION_Y_DEFAULT = "'-1'"; public static final String SETTING_VIDEO_RESOLUTION_X = "video_resolution_x"; public static final String SETTING_VIDEO_RESOLUTION_X_DEFAULT = "'320'"; public static final String SETTING_VIDEO_RESOLUTION_Y = "video_resolution_y"; public static final String SETTING_VIDEO_RESOLUTION_Y_DEFAULT = "'240'"; public static final String SETTING_VIDEO_FPS = "video_fps"; public static final String SETTING_VIDEO_FPS_DEFAULT = "'15'"; public static final String SETTING_AUDIO_BITRATE_KBPS = "audio_bitrate"; public static final String SETTING_AUDIO_BITRATE_KBPS_DEFAULT = "'96'"; public static final String SETTING_STORE_TO_SD = "sd_enabled"; public static final String SETTING_STORE_TO_SD_ALLOWED = TRUE+","+FALSE; public static final String SETTING_STORE_TO_SD_DEFAULT = TRUE; public static final String SETTING_STORAGE_LIMIT_MB = "storage_limit"; public static final String SETTING_STORAGE_LIMIT_MB_DEFAULT = "'-1'"; public static final String SETTING_CLIP_LENGTH_SECONDS = "clip_length"; public static final String SETTING_CLIP_LENGTH_SECONDS_DEFAULT = "'300'"; Does anyone see what could be going on? I'm stumped. Thanks in advance.

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  • Windows Updates settings issue!

    - by Kumi
    Hi, it's my first post here, don't wanna make it long, but I got a problem with my 'Windows Update' it won't show its setting's options. It only shows these settings: Important Updates, Recommended Updates and Who can install updates, it removed the other setting sections like 'Microsoft Updates' "Give me updates for Microsoft products and check for new optional Microsoft software when I update windows" or the last settings section 'Software notification' "Show me detailed notifications when new Microsoft software is available" Here's a screenshot of my Windows Update: http://img96.imageshack.us/img96/1963/windowsupdatescreenshot.png And here's how it was before and how should be: h**p://www.sevenforums.com/attachments/tutorials/3523d1242168648-windows-update-settings-change-wu_settings.jpg Thanks. PS: I'm running windows 7 RTM

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  • Disable Network settings (TCP/IP & DNS) on Windows 7 Ultimate

    - by TiD91
    i also read this discussion here How to disable Tcp/Ip settings in windows 7 via GPO? about what i want to do but i still have problems. So here i am: i have a desktop pc with two accounts, both with Administrative rights. One is used by the entire my family, in particular by my brother. The problem is that i set some DNS and IP configurations to let be possible the VNC connection from remote. Now i would like to disable the network settings (TCP/IP and DNS) to prohibit my brother to change it preventing me to connect to it. So how can i do this? I set the policies from GPO but i still can change these settings from his account. Here's a pic of Registry Keys: http://imageshack.us/a/img339/3310/famigliapc2012092017274.png what didn't i do? Thanks in advance for your help. Rub|TiD

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  • Versioning and Continuous Integration with project settings files

    - by Michael Stephenson
    I came across something which was a bit of a pain in the bottom the other week. Our scenario was that we had implemented a helper style assembly which had some custom configuration implemented through the project settings. I'm sure most of you are familiar with this where you end up with a settings file which is viewable through the C# project file and you can configure some basic settings. The settings are embedded in the assembly during compilation to be part of a DefaultValue attribute. You have the ability to override the settings by adding information to your app.config and if the app.config doesn’t override the settings then the embedded default is used. All normal C# stuff so far… Where our pain started was when we implement Continuous Integration and we wanted to version all of this from our build. What I was finding was that the assembly was versioned fine but the embedded default value was maintaining the non CI build version number. I ended up getting this to work by using a build task to change the version numbers in the following files: App.config Settings.settings Settings.designer.cs I think I probably could have got away with just the settings.designer.cs, but wanted to keep them all consistent incase we had to look at the code on the build server for some reason. I think the reason this was painful was because the settings.designer.cs is only updated through Visual Studio and it writes out the code to this file including the DefaultValue attribute when the project is saved rather than as part of the compilation process. The compile just compiles the already existing C# file. As I said we got it working, and it was a bit of a pain. If anyone has a better solution for this I'd love to hear it

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  • How do I include the Django settings file?

    - by alex
    I have a .py file in a directory , which is inside the Django project folder. I have email settings in my settings.py, but this .py file does not import that file. How can I specify to Django that settings.py should be used , so that I can use EmailMessage class with the settings that are in my settings.py?

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  • settings file vs app.config

    - by fearofawhackplanet
    I'm not really understanding the interaction/differences between settings and config files. If I add an entry to the settings file, it gets added to the app.config as well. Does this mean that changing the value in the app.config will update the settings? If not, how do I update settings in a live application? What's the general purpose of using a settings file instead of putting things directly in app.config?

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  • System.ArgumentException: Invalid hex character at DecryptAssemblyResource

    - by Radu094
    My webapp is trowing these exceptions intermitently ever since we migrated to Mono + Apache: The error sounds more like a problem reading/processing some assembly, so I was wondering if I should be worried that there might be a problem with the hard-drive? System.ArgumentException: Invalid hex character at System.Web.Configuration.MachineKeySectionUtils.ToHexValue (Char c, Boolean high) [0x00000] in <filename unknown>:0 at System.Web.Configuration.MachineKeySectionUtils.GetBytes (System.String key, Int32 len) [0x00000] in <filename unknown>:0 at System.Web.Handlers.ScriptResourceHandler.GetBytes (System.String val) [0x00000] in <filename unknown>:0 at System.Web.Handlers.ScriptResourceHandler.DecryptAssemblyResource (System.String val, System.String& asmName, System.String& resName) [0x00000] in <filename unknown>:0 at System.Web.Handlers.ScriptResourceHandler.ProcessRequest (System.Web.HttpContext context) [0x00000] in <filename unknown>:0 at System.Web.Handlers.ScriptResourceHandler.System.Web.IHttpHandler.ProcessRequest (System.Web.HttpContext context) [0x00000] in <filename unknown>:0 at System.Web.HttpApplication+<Pipeline>c__Iterator2.MoveNext () [0x00000] in <filename unknown>:0 at System.Web.HttpApplication.Tick () [0x00000] in <filename unknown>:0 Method: Void Application_Error(System.Object, System.EventArgs) at File: at Line Number: 0 Method: Void ProcessError(System.Exception) at File: at Line Number: 0 Method: Void Tick() at File: at Line Number: 0 Method: Void Start(System.Object) at File: at Line Number: 0 Method: Void System.Web.IHttpHandler.ProcessRequest(System.Web.HttpContext) at File: at Line Number: 0 Method: Void Process(System.Web.HttpWorkerRequest) at File: at Line Number: 0 Method: Void RealProcessRequest(System.Object) at File: at Line Number: 0 Method: Void ProcessRequest(System.Web.HttpWorkerRequest) at File: at Line Number: 0 Method: Void ProcessRequest() at File: at Line Number: 0 Method: Void ProcessRequest(Mono.WebServer.MonoWorkerRequest) at File: at Line Number: 0 Method: Void ProcessRequest(Int32, System.String, System.String, System.String, System.String, System.String, Int32, System.String, Int32, System.String, System.String[], System.String[], System.Object) at File: at Line Number: 0 Method: Void InnerRun(System.Object) at File: at Line Number: 0 Method: Void Run(System.Object) at File: at Line Number: 0

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  • System Center Essentials server running out of disk space due to stored old updates

    - by Ricket
    We have a System Center Essentials (SCE) server to filter updates to our laptops. We've configured it to download the update, and then the laptops get the update from this server; this of course reduces our internet bandwidth and the time it takes for employees to receive the updates, which reduces the complaints we get about how long updates take. However we currently have a total of 2,255 updates stored on the server. SCE gives a breakdown: Updates with installation errors: 29 Updates needed by computers: 280 Updates installed/up-to-date: 0 Updates with no status: 1946 Our little server has 68gb of hard disk space, and the updates are currently taking 32gb and counting. Some of the updates date back to 2003, but we can't figure out a way to delete them to free up space on the server. Right-clicking an update and clicking Uninstall threatens to remove the update from all computers, which is not what we want. Some of the updates even inform us upon viewing: This update has been replaced by a newer update. Before declining this update, it is recommended that you approve the new update first and verify that this update is no longer needed by any computers. How do you prevent your SCE server from filling its hard drive space? Is there a way to configure the server to only keep updates that are still needed? Furthermore, why (in the above breakdown of updates) are there so many updates with "no status" and 0 updates that are "installed/up-to-date"?

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  • System displays "File system maintenance error, press ctrl+d" while booting

    - by user3215
    In my office I've Ubuntu 8.10 desktop installed and it's running for a long time. When ever the system is started, I'll get a file system maintenance error and something it's prompted for the root password or (press ctrl+d to continue). After pressing Ctrl+D the system normally boots up. I could not resolve this issue for a long time and I think something should be done in the fstab file. I'm not sure to do anything and expecting the experts here to help to perfectly fix this. Any help is appreciated. Thanks!

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  • Entity Type specific updates in entity component system

    - by Nathan
    I am currently familiarizing myself with the entity component paradigm. For an example, take a collision system, that detects if entities collide and if they do let them explode. So the collision system has to test collision based on the position component and then set the state of those entities to exploding. But what if the "effect" (setting the state to exploding) is different for different entities? For example, a ship fades out while for an asteroid a particle system must be created. Since entities and components are only data, this must happen in some system. The collision system could do it, but then it must switch over the entity type, which in my opinion is a cumbersome and difficult to extend solution. So how do I trigger "entity type dependend" updates on an entity?

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  • How a "Collision System" should be implemented?

    - by nathan
    My game is written using a entity system approach using Artemis Framework. Right know my collision detection is called from the Movement System but i'm wondering if it's a proper way to do collision detection using such an approach. Right know i'm thinking of a new system dedicated to collision detection that would proceed all the solid entities to check if they are in collision with another one. I'm wondering if it's a correct way to handle collision detection with an entity system approach? Also, how should i implement this collision system? I though of an IntervalEntitySystem that would check every 200ms (this value is chosen regarding the Artemis documentation) if some entities are colliding. protected void processEntities(ImmutableBag<Entity> ib) { for (int i = 0; i < ib.size(); i++) { Entity e = ib.get(i); //check of collision with other entities here } }

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  • Corrupted File System on Dual HD/Dual Boot System

    - by Troy
    I have the following system set up: 2 drives, 1 TB each, one with Windows 7 and the other with what used to be Ubuntu 11.x After an update my system became corrupted and now the file system is apparently corrupt. The Ubuntu drive is /dev/sda2, the Windows 7 is /dev/sda1. I've tried fsck /dev/sda2 -t ext3 and that does nothing. I'm not sure what to do at this point. I don't even mind wiping the /dev/sda2 drive clean, so it will at least accept a completely new installation of Ubuntu. I just don't know how to do that. Please help. Thank you

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  • How can I add settings in the settings application for the iPhone

    - by Eytan
    I have my user preferences set to display in the system-settings application BUT I want to give them the option of adding additional settings. Specifically, the user has a group 'favorites' in the settings bundle and they then can put in the details of their three favorite contacts. However, I want to give the user the option of adding more. I know how to do this with inapp but can this be done through the settings application?

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  • ubuntu mouse settings

    - by user1
    is there a way to import windows mouse settings to ubuntu 10.04. I really love ubuntu but my laptop touchpad is driving me crazy. for e.g. I can not seem to drag the window frame properly etc... It is not a driver issue I know this for sure. I think I am accustomed to windows mouse settings. Please if you have a setting that works really well can you share it.

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  • Implementing features in an Entity System

    - by Bane
    After asking two questions on Entity Systems (1, 2), and reading some articles on them, I think that I understand them much better than before. But, I still have some uncertainties, and mainly they are about building a Particle Emitter, an Input system, and a Camera. I obviously still have some problems understanding Entity Systems, and they might apply to a whole other range of objects, but I chose these three because they are very different concepts and should cover a pretty big ground, and help me understand Entity Systems and how to handle problems like these myself, as they come along. I am building an engine in Javascript, and I've implemented most of the core features, which include: input handling, flexible animation system, particle emitter, math classes and functions, scene handling, a camera and a render, and a whole bunch of other things that engines usually support. Then, I read Byte56's answer that got me interested into making the engine into an Entity System one. It would still remain an HTML5 game engine with the basic Scene philosophy, but it should support dynamic creation of entities from components. These are some of the definitions from the previous questions, updated: An Entity is an identifier. It doesn't have any data, it's not an object, it's a simple id that represents an index in the Scene's list of all entities (which I actually plan to implement as a component matrix). A Component is a data holder, but with methods that can operate on that data. The best example is a Vector2D, or a "Position" component. It has data: x and y, but also some methods that make operating on the data a bit easier: add(), normalize(), and so on. A System is something that can operate on a set of entities that meet the certain requirements, usually they (the entities) need to have a specified (by the system itself) set of components to be operated upon. The system is the "logic" part, the "algorithm" part, all the functionality supplied by components is purely for easier data management. The problem that I have now is fitting my old engine concept into this new programming paradigm. Lets start with the simplest one, a Camera. The camera has a position property (Vector2D), a rotation property and some methods for centering it around a point. Each frame, it is fed to a renderer, along with a scene, and all the objects are translated according to it's position. Then the scene is rendered. How could I represent this kind of an object in an Entity System? Would the camera be an entity or simply a component? A combination (see my answer)? Another issues that is bothering me is implementing a Particle Emitter. For what exactly I mean by that, you can check out my video of it: http://youtu.be/BObargIMQsE. The problem I have with this is, again, what should be what. I'm pretty sure that particles themselves shouldn't be entities, as I want to support 10k+ of them, and creating that much entities would be a heavy blow on my performance, I believe. Or maybe not? Depends on the implementation, but anyone with experience: please, do answer. The last bit I wan't to talk about, which is also bugging me the most, is how input should be handled. In my current version of the engine, there is a class called Input. It's a handler that subscribes to browser's events, such as keypresses, and mouse position changes, and also it maintains an internal state. Then, the player class has a react() method, which accepts an input object as an argument. The advantage of this is that the input object could be serialized into JSON and then shared over the network, allowing for smooth multiplayer simulations. But how does this translate into an Entity System?

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  • What to store at application Settings, numeric / string representations or objects?

    - by SoMoS
    Hello, I've been thinking for a while on what to store at the Project Settings, objects or numeric/string representations of those objects to set a rule and avoid thinking on this at the future so I want to take the best approach. On one side storing object representations grants you that what is stored is valid and saves you from doing conversions each time you access them. You only need objects with the attribute. At the other side storing the numeric/string representation of an object eases the editing of the setting because at the end the user will be entering numeric or string information. What do you do with this issue?

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  • Storing user settings in table - how?

    - by Mdillion
    I have settings for the user about 200 settings, these include notice settings and tracing settings from user activities on objects. The problem is how to store it in the DB? Should each setting be a row or a column? If colunm then table will have 200 colunms. If row then about 3 colunms but 200 rows per user x even 10 million users = not good. So how else can i store all these settings? NOTE: these settings are a mix of text entry and FK lookups to other tables. Thanks.

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  • "cannot open file system. File system seems damaged "

    - by suresh kadiri
    I was using windows 7 till yesterday. I tried to install ubuntu 14. 04 Lts version yesterday with in windows 7. But it was not succeeded. Then I decided to install ubuntu only. By mistake I installed ubuntu in whole disk. After that to get deleted partitions I installed testdisk. I also used deeper search option. Now I'm getting "file system damaged". It shows The hard disk (320GB /298 GiB) seems to small! (<473 GB /441 GB) Check the Harddisk size: HD Jumpers setings, BIOS detection... The following partitions can't be recovered: Partition start end size in sectrors Linux 19077 177 45 57604 81 13 618930716 Linux 19080 192 57 57607 96 25 618930716 With ubcd also I used testdisk option. Same result comes."cannot open file system. File system seems damaged ". I have all my stuff in hard disk. Please help me to get recover my files in deleted partitions.

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