magic packet - Page 130

CodePlex Daily Summary for Thursday, September 27, 2012

CodePlex Daily Summary for Thursday, September 27, 2012Popular ReleasesVisual Studio Icon Patcher: Version 1.5.2: This version contains no new images from v1.5.1 Contains the following improvements: Better support for detecting the installed languages The extract & inject commands won’t run if Visual Studio is running You may now run in extract or inject mode The p/invoke code was cleaned up based on Code Analysis recommendations When a p/invoke method fails the Win32 error message is now displayed Error messages use red text Status messages use green textMCEBuddy 2.x: MCEBuddy 2.2.16: Changelog for 2.2.16 (32bit and 64bit) Now a standalone remote client also available to control the Engine remotely. 1. Added support for remote connections for status and configuration. MCEBuddy now uses port 23332. The remote server name, remote server port and local server port can be updated from the MCEBuddy.conf file BUT the Service or GUI needs to be restarted (i.e. reboot or restart service or restart program) for it to take effect. Refer to documentation for more details http://mce...LoLHQ - Personal League of Legends Assistant: LoLHQ v1.0: LoLHQ version 1.0 (full, portable) Instructions: - Download - Extract - Run LoLHQ.exe - If needed, specify League of Legends installation path.D3 Loot Tracker: 1.3.1 (patch): - Magic find value will now display properly and includes follower value. - ILevel of legendary items will now display properly.ZXing.Net: ZXing.Net 0.9.0.0: On the way to a release 1.0 the API should be stable now with this version. sync with rev. 2393 of the java version improved api better Unity support Windows RT binaries Windows CE binaries new Windows Service demo new WPF demoSSIS GoogleAnalyticsSource: Version 1.1 Alpha 2: The component uses now the Google API V2.4 including the management API.Ext Spec: Ext Spec 1.0.0: Completed remaining tasks: 7 12 17The GLMET Project: Sound Recorder: --WinRtBehaviors: V1.0.2: Includes simple Blend SupportMVC Bootstrap: MVC Boostrap 0.5.1: A small demo site, based on the default ASP.NET MVC 3 project template, showing off some of the features of MVC Bootstrap. This release uses Entity Framework 5 for data access and Ninject 3 for dependency injection. If you download and use this project, please give some feedback, good or bad!Simple PM - Project Management Simplified !: Simple Pm v1 - Aplha (Re-released): INSTALLATION GUIDE 1. Run the web setup, which will install the web app to IIS. 2. Make sure you select your application pool to "ASP.NET v4.0" during the installation. 3. Create a database named "SimplePm" 4. Run the attached database script on this database. 5. Change the database username and password in connection strings defined as SimplePmEntities and ApplicationServices from the Web.config file 6. Thats its ! Simple Pm are ready to go ! For any installation assistance feel free to c...menu4web: menu4web 1.0 - free javascript menu for web sites: menu4web 1.0 has been tested with all major browsers: Firefox, Chrome, IE, Opera and Safari. Minified m4w.js library is less than 9K. Includes 21 menu examples of different styles. Can be freely distributed under The MIT License (MIT).Rawr: Rawr 5.0.0: This is the Downloadable WPF version of Rawr!For web-based version see http://elitistjerks.com/rawr.php You can find the version notes at: http://rawr.codeplex.com/wikipage?title=VersionNotes Rawr Addon (NOT UPDATED YET FOR MOP)We now have a Rawr Official Addon for in-game exporting and importing of character data hosted on Curse. The Addon does not perform calculations like Rawr, it simply shows your exported Rawr data in wow tooltips and lets you export your character to Rawr (including ba...Coevery - Free CRM: Coevery 1.0.0.26: The zh-CN issue has been solved. We also add a project management module.VidCoder: 1.4.1 Beta: Updated to HandBrake 4971. This should fix some issues with stuck PGS subtitles. Fixed build break which prevented pre-compiled XML serializers from showing up. Fixed problem where a preset would get errantly marked as modified when re-opening the encode settings window or importing a new preset.JSLint for Visual Studio 2010: 1.4.0: VS2012 support is alphaBlackJumboDog: Ver5.7.2: 2012.09.23 Ver5.7.2 (1)InetTest?? (2)HTTP?????????????????100???????????Player Framework by Microsoft: Player Framework for Windows 8 (Preview 6): IMPORTANT: List of breaking changes from preview 5 Added separate samples download with .vsix dependencies instead of source dependencies Support for FreeWheel SmartXML ad responses Support for Smooth Streaming SDK DownloaderPlugins Support for VMAP and TTML polling for live scenarios Support for custom smooth streaming byte stream and scheme handlers Support for new play time and position tracking plugin Added IsLiveChanged event Added AdaptivePlugin.MaxBitrate property Add...WPF Application Framework (WAF): WPF Application Framework (WAF) 2.5.0.8: Version: 2.5.0.8 (Milestone 8): This release contains the source code of the WPF Application Framework (WAF) and the sample applications. Requirements .NET Framework 4.0 (The package contains a solution file for Visual Studio 2010) The unit test projects require Visual Studio 2010 Professional Changelog Legend: [B] Breaking change; [O] Marked member as obsolete WAF: Mark the class DataModel as serializable. InfoMan: Minor improvements. InfoMan: Add unit tests for all modules. Othe...LogicCircuit: LogicCircuit 2.12.9.20: Logic Circuit - is educational software for designing and simulating logic circuits. Intuitive graphical user interface, allows you to create unrestricted circuit hierarchy with multi bit buses, debug circuits behavior with oscilloscope, and navigate running circuits hierarchy. Changes of this versionToolbars on text note dialog are more flexible now. You can select font face, size, color, and background of text you are typing. RAM now can be initialized to one of the following: random va...New ProjectsAltairis Binary Store Provider: Altairis Binary Store is provider based system for storing arbitrary binary data either in file system or in Azure Blob Storage.Azure Diagnostic Log Viewer: This tool helps in viewing logs written in azure diagnostics log tables. <MORE DETAILS COMING SOON>bluequiz: Là d? án giúp các cá nhân, t? ch?c, tru?ng h?c, t? ch?c thi tr?c nghi?m tr?c tuy?n và qu?n lý di?m m?t cách d? dàng hon.Detect User Geo location: Detect site visitor geo location Detect geo location of the site visitors by html5 geolocation (first) or ipinfodb.com(second choice). Educards: Educational cards.EuWangSSO: SSO (single sign-on) solutionFree Aspx Image Gallery: This is first basic release of my free aspx image gallery project. It is free to use and modify by the user without any need of providing any credit to me.GEFe: GEFeguohai's project: a open source project!ISMOT - Async Helper: This is a wrapper library for Microsoft's Async Library (CTP). Using this library greatly facilitates async calls in Silverlight and Windows Phone projects.LoLHQ - Personal League of Legends Assistant: LoLHQ - Personal League of Legends Assistant Check detailed ELO ratings and statistics of your teammates. Personalize counter-pick lists, view Champions detailsMNK-HKM addon: Special thanks to: Kill Us Or Die TryingPCV_CLINIC: my project PCV_ClinicRemote Commands: Program which allow to control computer sending e-mails with commands.Resource File Comparer: Resource File Comparer is a quick utility to help compare the availability of required resource strings in all resource files for an application.Rich Client Template: The new Rich Client Template for Visual Studio 2012Simple Microsoft Excel Document Converter (Convert To XLS, XLSX, PDF, XPS): This library is based on Microsoft.Office.Interop.Excel. This library can convert Excel documents to PDF or XPS in C#.TCC News: testeTesPro: ???The Eggbert Chronicles: The Eggbert Chronicles, a 2.5D platformer built in Unity and created using Javascript and C#.Tombola XNA: Gioco della tombola utilizzando XNA.Tools and Company: "Tools and Company" is a DLL which contains a set of useful and generic classes and functions in C# language. I use this DLL in my different other C# projects.TradeIt: :)usermade: user made websiteWIT Sync Manager 2010: Enables you to synchronize virtually all aspects of work item types and related artifacts across collections and projects in TFS 2010.xebictetris: Xebic Tetris Web Testxmwms: xmwmsXNA for Windows 8(Windows RT).: Officially there is no support for XNA Game Studio in Windows 8(WinRT). So this is a light weight XNA Framework made using the .NET 4.5 and Metro Style APIs and????????????? ?????????: ???????? ?????? ?? ???????? ?????????????? ??????????

Read the article

Windows Phone 7 : Dragging and flicking UI controls

- by TechTwaddle

Who would want to flick and drag UI controls!? There might not be many use cases but I think some concepts here are worthy of a post. So we will create a simple silverlight application for windows phone 7, containing a canvas element on which we’ll place a button control and an image and then, as the title says, drag and flick the controls. Here’s Mainpage.xaml, <Grid x:Name="LayoutRoot" Background="Transparent"> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition Height="*"/> </Grid.RowDefinitions>  <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28"> <TextBlock x:Name="ApplicationTitle" Text="KINETICS" Style="{StaticResource PhoneTextNormalStyle}"/> <TextBlock x:Name="PageTitle" Text="drag and flick" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/> </StackPanel>  <Grid x:Name="ContentPanel" Grid.Row="1" > <Canvas x:Name="MainCanvas" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"> <Canvas.Background> <LinearGradientBrush StartPoint="0 0" EndPoint="0 1"> <GradientStop Offset="0" Color="Black"/> <GradientStop Offset="1.5" Color="BlanchedAlmond"/> </LinearGradientBrush> </Canvas.Background> </Canvas> </Grid> </Grid> the second row in the main grid contains a canvas element, MainCanvas, with its horizontal and vertical alignment set to stretch so that it occupies the entire grid. The canvas background is a linear gradient brush starting with Black and ending with BlanchedAlmond. We’ll add the button and image control to this canvas at run time. Moving to Mainpage.xaml.cs the Mainpage class contains the following members, public partial class MainPage : PhoneApplicationPage { Button FlickButton; Image FlickImage; FrameworkElement ElemToMove = null; double ElemVelX, ElemVelY; const double SPEED_FACTOR = 60; DispatcherTimer timer; FlickButton and FlickImage are the controls that we’ll add to the canvas. ElemToMove, ElemVelX and ElemVelY will be used by the timer callback to move the ui control. SPEED_FACTOR is used to scale the velocities of ui controls. Here’s the Mainpage constructor, // Constructor public MainPage() { InitializeComponent(); AddButtonToCanvas(); AddImageToCanvas(); timer = new DispatcherTimer(); timer.Interval = TimeSpan.FromMilliseconds(35); timer.Tick += new EventHandler(OnTimerTick); } We’ll look at those AddButton and AddImage functions in a moment. The constructor initializes a timer which fires every 35 milliseconds, this timer will be started after the flick gesture completes with some inertia. Back to AddButton and AddImage functions, void AddButtonToCanvas() { LinearGradientBrush brush; GradientStop stop1, stop2; Random rand = new Random(DateTime.Now.Millisecond); FlickButton = new Button(); FlickButton.Content = ""; FlickButton.Width = 100; FlickButton.Height = 100; brush = new LinearGradientBrush(); brush.StartPoint = new Point(0, 0); brush.EndPoint = new Point(0, 1); stop1 = new GradientStop(); stop1.Offset = 0; stop1.Color = Colors.White; stop2 = new GradientStop(); stop2.Offset = 1; stop2.Color = (Application.Current.Resources["PhoneAccentBrush"] as SolidColorBrush).Color; brush.GradientStops.Add(stop1); brush.GradientStops.Add(stop2); FlickButton.Background = brush; Canvas.SetTop(FlickButton, rand.Next(0, 400)); Canvas.SetLeft(FlickButton, rand.Next(0, 200)); MainCanvas.Children.Add(FlickButton); //subscribe to events FlickButton.ManipulationDelta += new EventHandler<ManipulationDeltaEventArgs>(OnManipulationDelta); FlickButton.ManipulationCompleted += new EventHandler<ManipulationCompletedEventArgs>(OnManipulationCompleted); } this function is basically glorifying a simple task. After creating the button and setting its height and width, its background is set to a linear gradient brush. The direction of the gradient is from top towards bottom and notice that the second stop color is the PhoneAccentColor, which changes along with the theme of the device. The line, stop2.Color = (Application.Current.Resources["PhoneAccentBrush"] as SolidColorBrush).Color; does the magic of extracting the PhoneAccentBrush from application’s resources, getting its color and assigning it to the gradient stop. AddImage function is straight forward in comparison, void AddImageToCanvas() { Random rand = new Random(DateTime.Now.Millisecond); FlickImage = new Image(); FlickImage.Source = new BitmapImage(new Uri("/images/Marble.png", UriKind.Relative)); Canvas.SetTop(FlickImage, rand.Next(0, 400)); Canvas.SetLeft(FlickImage, rand.Next(0, 200)); MainCanvas.Children.Add(FlickImage); //subscribe to events FlickImage.ManipulationDelta += new EventHandler<ManipulationDeltaEventArgs>(OnManipulationDelta); FlickImage.ManipulationCompleted += new EventHandler<ManipulationCompletedEventArgs>(OnManipulationCompleted); } The ManipulationDelta and ManipulationCompleted handlers are same for both the button and the image. OnManipulationDelta() should look familiar, a similar implementation was used in the previous post, void OnManipulationDelta(object sender, ManipulationDeltaEventArgs args) { FrameworkElement Elem = sender as FrameworkElement; double Left = Canvas.GetLeft(Elem); double Top = Canvas.GetTop(Elem); Left += args.DeltaManipulation.Translation.X; Top += args.DeltaManipulation.Translation.Y; //check for bounds if (Left < 0) { Left = 0; } else if (Left > (MainCanvas.ActualWidth - Elem.ActualWidth)) { Left = MainCanvas.ActualWidth - Elem.ActualWidth; } if (Top < 0) { Top = 0; } else if (Top > (MainCanvas.ActualHeight - Elem.ActualHeight)) { Top = MainCanvas.ActualHeight - Elem.ActualHeight; } Canvas.SetLeft(Elem, Left); Canvas.SetTop(Elem, Top); } all it does is calculate the control’s position, check for bounds and then set the top and left of the control. OnManipulationCompleted() is more interesting because here we need to check if the gesture completed with any inertia and if it did, start the timer and continue to move the ui control until it comes to a halt slowly, void OnManipulationCompleted(object sender, ManipulationCompletedEventArgs args) { FrameworkElement Elem = sender as FrameworkElement; if (args.IsInertial) { ElemToMove = Elem; Debug.WriteLine("Linear VelX:{0:0.00} VelY:{1:0.00}", args.FinalVelocities.LinearVelocity.X, args.FinalVelocities.LinearVelocity.Y); ElemVelX = args.FinalVelocities.LinearVelocity.X / SPEED_FACTOR; ElemVelY = args.FinalVelocities.LinearVelocity.Y / SPEED_FACTOR; timer.Start(); } } ManipulationCompletedEventArgs contains a member, IsInertial, which is set to true if the manipulation was completed with some inertia. args.FinalVelocities.LinearVelocity.X and .Y will contain the velocities along the X and Y axis. We need to scale down these values so they can be used to increment the ui control’s position sensibly. A reference to the ui control is stored in ElemToMove and the velocities are stored as well, these will be used in the timer callback to access the ui control. And finally, we start the timer. The timer callback function is as follows, void OnTimerTick(object sender, EventArgs e) { if (null != ElemToMove) { double Left, Top; Left = Canvas.GetLeft(ElemToMove); Top = Canvas.GetTop(ElemToMove); Left += ElemVelX; Top += ElemVelY; //check for bounds if (Left < 0) { Left = 0; ElemVelX *= -1; } else if (Left > (MainCanvas.ActualWidth - ElemToMove.ActualWidth)) { Left = MainCanvas.ActualWidth - ElemToMove.ActualWidth; ElemVelX *= -1; } if (Top < 0) { Top = 0; ElemVelY *= -1; } else if (Top > (MainCanvas.ActualHeight - ElemToMove.ActualHeight)) { Top = MainCanvas.ActualHeight - ElemToMove.ActualHeight; ElemVelY *= -1; } Canvas.SetLeft(ElemToMove, Left); Canvas.SetTop(ElemToMove, Top); //reduce x,y velocities gradually ElemVelX *= 0.9; ElemVelY *= 0.9; //when velocities become too low, break if (Math.Abs(ElemVelX) < 1.0 && Math.Abs(ElemVelY) < 1.0) { timer.Stop(); ElemToMove = null; } } } if ElemToMove is not null, we get the top and left values of the control and increment the values with their X and Y velocities. Check for bounds, and if the control goes out of bounds we reverse its velocity. Towards the end, the velocities are reduced by 10% every time the timer callback is called, and if the velocities reach too low values the timer is stopped and ElemToMove is made null. Here’s a short video of the program, the video is a little dodgy because my display driver refuses to run the animations smoothly. The flicks aren’t always recognised but the program should run well on an actual device (or a pc with better configuration), You can download the source code from here: ButtonDragAndFlick.zip

Read the article

MVVM Light V4 preview (BL0014) release notes

- by Laurent Bugnion

I just pushed to Codeplex an update to the MVVM Light source code. This is an early preview containing some of the features that I want to release later under the version 4. If you find these features useful for your project, please download the source code and build the assemblies. I will appreciate greatly any issue report. This version is labeled “V4.0.0.0/BL0014”. The “BL” string is an old habit that we used in my days at Siemens Building Technologies, called a “base level”. Somehow I like this way of incrementing the “base level” independently of any other consideration (such as alpha, beta, CTP, RTM etc) and continue to use it to tag my software versions. In Microsoft parlance, you could say that this is an early CTP of MVVM Light V4. Caveat The code is unit tested, but as we all know this does not mean that there are no bugs This code has not yet been used in production. Again, your help in testing this is greatly appreciated, so please report all bugs to me! What’s new? The following features have been implemented: Misc Various “maintenance work”. All WPF assemblies (that is .NET35 and .NET4) now allow partially trusted callers. It means that you can use them in am XBAP in partial trust mode. Testing Various test updates Added Windows Phone 7 unit tests Note: For Windows Phone 7, due to an issue in the unit test framework, not all tests can be executed. I had to isolate those tests for the moment. The error was reported to Microsoft. ViewModelBase The constructor is now public to allow serialization (especially useful on the phone to tombstone the state). ViewModelBase.MessengerInstance now returns Messenger.Default unless it is set explicitly. Previously, MessengerInstance was returning null, which was complicating the code. Two new ways to raise the PropertyChanged event have been added. See below for details. Messenger Updated the IMessenger interface with all public members from the Messenger class. Previously some members were missing. A new Unregister method is now available, allowing to unregister a recipient for a given token. RelayCommand RaiseCanExecuteChanged now acts the same in Windows Presentation Foundation than in Silverlight. In previous versions, I was relying on the CommandManager to raise the CanExecuteChanged event in WPF. However, it was found to be too unreliable, and a more direct way of raising the event was found preferable. See below for details. Raising the PropertyChanged event A very much requested update is now included: the ability to raise the PropertyChanged event in a viewmodel without using “magic strings”. Personally, I don’t see strings as a major issue, thanks to two features of the MVVM Light Toolkit: In the DEBUG configuration, every time that the RaisePropertyChanged method is called, the name of the property is checked against all existing properties of the viewmodel. Should the property name be misspelled (because of a typo or refactoring), an exception is thrown, notifying the developer that something is wrong. To avoid impacting the performance, this check is only made in DEBUG configuration, but that should be enough to warn the developers in case they miss a rename. The property name is defined as a public constant in the “mvvminpc” code snippet. This allows checking the property name from another class (for example if the PropertyChanged event is handled in the view). It also allows changing the property name in one place only. However, these two safeguards didn’t satisfy some of the users, who requested another way to raise the PropertyChanged event. In V4, you can now do the following: Using lambdas private int _myProperty; public int MyProperty { get { return _myProperty; } set { if (_myProperty == value) { return; } _myProperty = value; RaisePropertyChanged(() => MyProperty); } } This raises the property changed event using a lambda expression instead of the property name. Light reflection is used to get the name. This supports Intellisense and can easily be refactored. You can also broadcast a PropertyChangedMessage using the Messenger.Default instance with: private int _myProperty; public int MyProperty { get { return _myProperty; } set { if (_myProperty == value) { return; } var oldValue = _myProperty; _myProperty = value; RaisePropertyChanged(() => MyProperty, oldValue, value, true); } } Using no arguments When the RaisePropertyChanged method is called within a setter, you can also omit the property name altogether. This will fail if executed outside of the setter however. Also, to avoid confusion, there is no way to broadcast the PropertyChangedMessage using this syntax. private int _myProperty; public int MyProperty { get { return _myProperty; } set { if (_myProperty == value) { return; } _myProperty = value; RaisePropertyChanged(); } } The old way Of course the “old” way is still supported, without broadcast: public const string MyPropertyName = "MyProperty"; private int _myProperty; public int MyProperty { get { return _myProperty; } set { if (_myProperty == value) { return; } _myProperty = value; RaisePropertyChanged(MyPropertyName); } } And with broadcast: public const string MyPropertyName = "MyProperty"; private int _myProperty; public int MyProperty { get { return _myProperty; } set { if (_myProperty == value) { return; } var oldValue = _myProperty; _myProperty = value; RaisePropertyChanged(MyPropertyName, oldValue, value, true); } } Performance considerations It is notorious that using reflection takes more time than using a string constant to get the property name. However, after measuring for all platforms, I found the differences to be very small. I will measure more and submit the results to the community for evaluation, because some of the results are actually surprising (for example, using the Messenger to broadcast a PropertyChangedMessage does not significantly increase the time taken to raise the PropertyChanged event and update the bindings). For now, I submit this code to you, and would be delighted to hear about your own results. Raising the CanExecuteChanged event manually In WPF, until now, the CanExecuteChanged event for a RelayCommand was raised automatically. Or rather, it was attempted to be raised, using a feature that is only available in WPF called the CommandManager. This class monitors the UI and when something occurs, it queries the state of the CanExecute delegate for all the commands. However, this proved unreliable for the purpose of MVVM: Since very often the value of the CanExecute delegate changes according to non-UI events (for example something changing in the viewmodel or in the model), raising the CanExecuteChanged event manually is necessary. In Silverlight, the CommandManager does not exist, so we had to raise the event manually from the start. This proved more reliable, and I now changed the WPF implementation of the RaiseCanExecuteChanged method to be the exact same in WPF than in Silverlight. For instance, if a command must be enabled when a string property is set to a value other than null or empty string, you can do: public MainViewModel() { MyTestCommand = new RelayCommand( () => DoSomething(), () => !string.IsNullOrEmpty(MyProperty)); } public const string MyPropertyName = "MyProperty"; private string _myProperty = string.Empty; public string MyProperty { get { return _myProperty; } set { if (_myProperty == value) { return; } _myProperty = value; RaisePropertyChanged(MyPropertyName); MyTestCommand.RaiseCanExecuteChanged(); } } Logo update I made a minor change to the logo: Some people found the lack of the word “light” (as in MVVM Light Toolkit) confusing. I thought it was cool, because the feather suggests the idea of lightness, however I can see the point. So I added the word “light” to the logo. Things should be quite clear now. What’s next? This is only the first of a series of releases that will bring MVVM Light to V4. In the next weeks, I will continue to add some very requested features and correct some issues in the code. I will probably continue this fashion of releasing the changes to the public as source code through Codeplex. I would be very interested to hear what you think of that, and to get feedback about the changes. Cheers, Laurent Laurent Bugnion (GalaSoft) Subscribe | Twitter | Facebook | Flickr | LinkedIn

Read the article

Linux e1000e (Intel networking driver) problems galore, where do I start?

- by Evan Carroll

I'm currently having a major problem with e1000e (not working at all) in Ubuntu Maverick (1.0.2-k4), after resume I'm getting a lot of stuff in dmesg: [ 9085.820197] e1000e 0000:02:00.0: PCI INT A disabled [ 9089.907756] e1000e: Intel(R) PRO/1000 Network Driver - 1.0.2-k4 [ 9089.907762] e1000e: Copyright (c) 1999 - 2009 Intel Corporation. [ 9089.907797] e1000e 0000:02:00.0: Disabling ASPM L1 [ 9089.907827] e1000e 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 9089.907857] e1000e 0000:02:00.0: setting latency timer to 64 [ 9089.908529] e1000e 0000:02:00.0: irq 44 for MSI/MSI-X [ 9089.908922] e1000e 0000:02:00.0: Disabling ASPM L0s [ 9089.908954] e1000e 0000:02:00.0: (unregistered net_device): PHY reset is blocked due to SOL/IDER session. [ 9090.024625] e1000e 0000:02:00.0: eth0: (PCI Express:2.5GB/s:Width x1) 00:0a:e4:3e:ce:74 [ 9090.024630] e1000e 0000:02:00.0: eth0: Intel(R) PRO/1000 Network Connection [ 9090.024712] e1000e 0000:02:00.0: eth0: MAC: 2, PHY: 2, PBA No: 005302-003 [ 9090.109492] e1000e 0000:02:00.0: irq 44 for MSI/MSI-X [ 9090.164219] e1000e 0000:02:00.0: irq 44 for MSI/MSI-X and, a bunch of [ 2128.005447] e1000e 0000:02:00.0: eth0: Detected Hardware Unit Hang: [ 2128.005452] TDH <89> [ 2128.005454] TDT <27> [ 2128.005456] next_to_use <27> [ 2128.005458] next_to_clean <88> [ 2128.005460] buffer_info[next_to_clean]: [ 2128.005463] time_stamp <6e608> [ 2128.005465] next_to_watch <8a> [ 2128.005467] jiffies <6f929> [ 2128.005469] next_to_watch.status <0> [ 2128.005471] MAC Status <80080703> [ 2128.005473] PHY Status <796d> [ 2128.005475] PHY 1000BASE-T Status <4000> [ 2128.005477] PHY Extended Status <3000> [ 2128.005480] PCI Status <10> I decided to compile the latest stable e1000e to 1.2.17, now I'm getting: [ 9895.678050] e1000e: Intel(R) PRO/1000 Network Driver - 1.2.17-NAPI [ 9895.678055] e1000e: Copyright(c) 1999 - 2010 Intel Corporation. [ 9895.678098] e1000e 0000:02:00.0: Disabling ASPM L1 [ 9895.678129] e1000e 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 9895.678162] e1000e 0000:02:00.0: setting latency timer to 64 [ 9895.679136] e1000e 0000:02:00.0: irq 44 for MSI/MSI-X [ 9895.679160] e1000e 0000:02:00.0: Disabling ASPM L0s [ 9895.679192] e1000e 0000:02:00.0: (unregistered net_device): PHY reset is blocked due to SOL/IDER session. [ 9895.791758] e1000e 0000:02:00.0: eth0: (PCI Express:2.5GB/s:Width x1) 00:0a:e4:3e:ce:74 [ 9895.791766] e1000e 0000:02:00.0: eth0: Intel(R) PRO/1000 Network Connection [ 9895.791850] e1000e 0000:02:00.0: eth0: MAC: 3, PHY: 2, PBA No: 005302-003 [ 9895.892464] e1000e 0000:02:00.0: irq 44 for MSI/MSI-X [ 9895.948175] e1000e 0000:02:00.0: irq 44 for MSI/MSI-X [ 9895.949111] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 9895.954694] e1000e: eth0 NIC Link is Up 10 Mbps Full Duplex, Flow Control: RX/TX [ 9895.954703] e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO [ 9895.955157] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 9906.832056] eth0: no IPv6 routers present With 1.2.20 I get: [ 9711.525465] e1000e: Intel(R) PRO/1000 Network Driver - 1.2.20-NAPI [ 9711.525472] e1000e: Copyright(c) 1999 - 2010 Intel Corporation. [ 9711.525521] e1000e 0000:02:00.0: Disabling ASPM L1 [ 9711.525554] e1000e 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 9711.525586] e1000e 0000:02:00.0: setting latency timer to 64 [ 9711.526460] e1000e 0000:02:00.0: irq 45 for MSI/MSI-X [ 9711.526487] e1000e 0000:02:00.0: Disabling ASPM L0s [ 9711.526523] e1000e 0000:02:00.0: (unregistered net_device): PHY reset is blocked due to SOL/IDER session. [ 9711.639763] e1000e 0000:02:00.0: eth0: (PCI Express:2.5GB/s:Width x1) 00:0a:e4:3e:ce:74 [ 9711.639771] e1000e 0000:02:00.0: eth0: Intel(R) PRO/1000 Network Connection [ 9711.639854] e1000e 0000:02:00.0: eth0: MAC: 3, PHY: 2, PBA No: 005302-003 [ 9712.060770] e1000e 0000:02:00.0: irq 45 for MSI/MSI-X [ 9712.116195] e1000e 0000:02:00.0: irq 45 for MSI/MSI-X [ 9712.117098] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 9712.122684] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX [ 9712.122693] e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO [ 9712.123142] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 9722.920014] eth0: no IPv6 routers present But, I'm still getting these [ 9982.992851] PCI Status <10> [ 9984.993602] e1000e 0000:02:00.0: eth0: Detected Hardware Unit Hang: [ 9984.993606] TDH <5d> [ 9984.993608] TDT <6b> [ 9984.993611] next_to_use <6b> [ 9984.993613] next_to_clean <5b> [ 9984.993615] buffer_info[next_to_clean]: [ 9984.993617] time_stamp <24da80> [ 9984.993619] next_to_watch <5d> [ 9984.993621] jiffies <24f200> [ 9984.993624] next_to_watch.status <0> [ 9984.993626] MAC Status <80080703> [ 9984.993628] PHY Status <796d> [ 9984.993630] PHY 1000BASE-T Status <4000> [ 9984.993632] PHY Extended Status <3000> [ 9984.993635] PCI Status <10> [ 9986.001047] e1000e 0000:02:00.0: eth0: Reset adapter [ 9986.176202] e1000e: eth0 NIC Link is Up 10 Mbps Full Duplex, Flow Control: RX/TX [ 9986.176211] e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO I'm not sure where to start troubleshooting this. Any ideas? Here is the result of ethtool -d eth0 MAC Registers ------------- 0x00000: CTRL (Device control register) 0x18100248 Endian mode (buffers): little Link reset: reset Set link up: 1 Invert Loss-Of-Signal: no Receive flow control: enabled Transmit flow control: enabled VLAN mode: disabled Auto speed detect: disabled Speed select: 1000Mb/s Force speed: no Force duplex: no 0x00008: STATUS (Device status register) 0x80080703 Duplex: full Link up: link config TBI mode: disabled Link speed: 10Mb/s Bus type: PCI Express Port number: 0 0x00100: RCTL (Receive control register) 0x04048002 Receiver: enabled Store bad packets: disabled Unicast promiscuous: disabled Multicast promiscuous: disabled Long packet: disabled Descriptor minimum threshold size: 1/2 Broadcast accept mode: accept VLAN filter: enabled Canonical form indicator: disabled Discard pause frames: filtered Pass MAC control frames: don't pass Receive buffer size: 2048 0x02808: RDLEN (Receive desc length) 0x00001000 0x02810: RDH (Receive desc head) 0x00000001 0x02818: RDT (Receive desc tail) 0x000000F0 0x02820: RDTR (Receive delay timer) 0x00000000 0x00400: TCTL (Transmit ctrl register) 0x3103F0FA Transmitter: enabled Pad short packets: enabled Software XOFF Transmission: disabled Re-transmit on late collision: enabled 0x03808: TDLEN (Transmit desc length) 0x00001000 0x03810: TDH (Transmit desc head) 0x00000000 0x03818: TDT (Transmit desc tail) 0x00000000 0x03820: TIDV (Transmit delay timer) 0x00000008 PHY type: IGP2 and ethtool -c eth0 Coalesce parameters for eth0: Adaptive RX: off TX: off stats-block-usecs: 0 sample-interval: 0 pkt-rate-low: 0 pkt-rate-high: 0 rx-usecs: 3 rx-frames: 0 rx-usecs-irq: 0 rx-frames-irq: 0 tx-usecs: 0 tx-frames: 0 tx-usecs-irq: 0 tx-frames-irq: 0 rx-usecs-low: 0 rx-frame-low: 0 tx-usecs-low: 0 tx-frame-low: 0 rx-usecs-high: 0 rx-frame-high: 0 tx-usecs-high: 0 tx-frame-high: 0 Here is also the lspci -vvv for this controller 02:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet Controller Subsystem: Lenovo ThinkPad X60s Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 45 Region 0: Memory at ee000000 (32-bit, non-prefetchable) [size=128K] Region 2: I/O ports at 2000 [size=32] Capabilities: [c8] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME- Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Address: 00000000fee0300c Data: 415a Capabilities: [e0] Express (v1) Endpoint, MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset- DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <128ns, L1 <64us ClockPM+ Surprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+ ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- Capabilities: [100 v1] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- AERCap: First Error Pointer: 14, GenCap- CGenEn- ChkCap- ChkEn- Capabilities: [140 v1] Device Serial Number 00-0a-e4-ff-ff-3e-ce-74 Kernel driver in use: e1000e Kernel modules: e1000e I filed a bug on this upstream, still no idea how to get more useful information. Here is a the result of the running that script EEPROM FIX UPDATE $ sudo bash fixeep-82573-dspd.sh eth0 eth0: is a "82573L Gigabit Ethernet Controller" This fixup is applicable to your hardware Your eeprom is up to date, no changes were made Do I still need to do anything? Also here is my EEPROM dump $ sudo ethtool -e eth0 Offset Values ------ ------ 0x0000 00 0a e4 3e ce 74 30 0b b2 ff 51 00 ff ff ff ff 0x0010 53 00 03 02 6b 02 7e 20 aa 17 9a 10 86 80 df 80 0x0020 00 00 00 20 54 7e 00 00 14 00 da 00 04 00 00 27 0x0030 c9 6c 50 31 3e 07 0b 04 8b 29 00 00 00 f0 02 0f 0x0040 08 10 00 00 04 0f ff 7f 01 4d ff ff ff ff ff ff 0x0050 14 00 1d 00 14 00 1d 00 af aa 1e 00 00 00 1d 00 0x0060 00 01 00 40 1f 12 07 40 ff ff ff ff ff ff ff ff 0x0070 ff ff ff ff ff ff ff ff ff ff ff ff ff ff 4a e0 I'd also like to note that I used eth0 every day for years and until recently never had an issue.

Read the article

Too nervous to install

- by The Prop

Yesterday I (a professional rugby prop of somewhat limited intellect) landed in http://htmlagilitypack.codeplex.com/ and found myself stranded in a town with no signposts. The locals don't need signposts - they know their way around - so who gives a hoot about visitors? Well I'm a visitor and I'm lost. Here's my plea to the good burgesses of Codeplex-sans-signs: HELP!! Let me back-track and explain what landed me at the bottom of this tangled ruck. There's a "Download" button positioned near the top-right of the Codeplex web page, right? Like the Sword of Damocles, a down-arrow to the left of the button indicates, presumably, what a download would include: CURRENT 1.4.0 Stable DATE Fri May 7 2010 at 7:00 AM STATUS Stable With a simple-minded confidence that has since deserted me (the confidence - not the simple-mindedness), I clicked "Download". This introduced 3 new files to my computer: HtmlAgilityPack.dll, HtmlAgilityPack.pdb, and HtmlAgilityPack.XML This is when the first stab of doubt penetrated that globe between my cauliflower ears that I call a head. Where's the dot cs? Somewhere in Codeplex, I'd read advice to another lost soul to "download and build the HTMLAgilityPack solution". As I've done so many times as an All Black prop, I glared at the opposition front row - ah, I mean the 3 new files. Shouldn't one of them have a ".cs" on the back of his jersey - er, on the end of its name? Or is this just how they play the game in Codeplex-sans-signs? Undaunted (props have more courage than sense) I packed into my first C# scrum. The half-back feeds the ball in, and the front rows collapse - er, the debugging stops at this line of my code: "HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();" Then the Referee blows his whistle and announces one of those verdicts that's utterly indecipherable to your average loose-head prop: Locating source for 'C:\Source\htmlagilitypack\Trunk\HtmlAgilityPack\HtmlDocument.cs'. Checksum: MD5 {62 bc f3 7e 9a 92 a6 32 7 d6 5b f8 76 59 7b 5b} The file 'C:\Source\htmlagilitypack\Trunk\HtmlAgilityPack\HtmlDocument.cs' does not exist. Looking in script documents for 'C:\Source\htmlagilitypack\Trunk\HtmlAgilityPack\HtmlDocument.cs'... Looking in the projects for 'C:\Source\htmlagilitypack\Trunk\HtmlAgilityPack\HtmlDocument.cs'. The file was not found in a project. Looking in directory 'C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\vc7\atlmfc'... Looking in directory 'C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\vc7\crt'... The debugger will ask the user to find the file: C:\Source\htmlagilitypack\Trunk\HtmlAgilityPack\HtmlDocument.cs. The user pressed Cancel [a brain-stemmer from the prop] in the Find Source dialog. The debug source files settings for the active solution have been modified so that the debugger will not ask the user to find the file: C:\Source\htmlagilitypack\Trunk\HtmlAgilityPack\HtmlDocument.cs. The debugger could not locate the source file 'C:\Source\htmlagilitypack\Trunk\HtmlAgilityPack\HtmlDocument.cs'. Even if it had been the first 50 stanzas of "Eskimo Nell", I couldn't have been more shocked. I'm so shocked, my jaws clamp shut around the opposition hooker's ear. He thumbs me in the iris. With a cornea-torn eye I peer at the Codeplex site. My brain stem sparks and I punch the "View all downloads" link. It sparks four more times on each download link, and.. lo! FOUR files this time: HAPExplorer.zip, HtmlAgilityPack.1.4.0.Source.zip, HtmlAgilityPack.1.4.0.zip, HtmlAgilityPack.Documentation.chm But... is this not the same place arrived at recently by my flat-mate Chaz, journalist extraordinaire? (Chaz, if you're reading this, I'm not plugging for nothing - just write kindly about me in your next report, okay?) Didn't these same four files flummox Chaz The Great? He told me about it. Chaz left a message with Codeplex and then solved the problem by just walking away. Typical journalist, huh. But I'm not like that. I don't walk away. I'm made of the sort of stubborn stuff that becomes an All Black prop. Hence this impassioned plea: GOOD TOWNSFOLK OF CODEPLEX-SANS-SIGNS, WHAT SHOULD I DO NEXT? Can somebody point me to Main Street? How does a simpleton install 'C:\Source\htmlagilitypack\Trunk\HtmlAgilityPack\HtmlDocument.cs'? I'm willing to prostrate myself and grovel to the first kind face that passes in front of my rapidly clouding sight. So help me, I'd even tug my forelock if I had one! Should I hold forth my rod over the wilderness, and create a folder called 'C:\Source\htmlagilitypack\Trunk\HtmlAgilityPack\' or some such? If so, what files should I move into it? ANYTHING else a dum-ass should know about? - and I mean ANYTHING - you just don't know how witless a punch-drunk prop can be.. %( Whenever I've installed other programs they've given me an ".exe" or ".msi" that I can click on and it's all done for me like magic. HEY... there's nothing of that nature here, is there? Am I missing something? Something for dummies to click? (From the waiting rooms of Dr I. Sight Phixes) (signed) The Prop

Read the article

How to change the value of a JLabel in runtime?

- by user365465

I want to change the image a JLabel is viewing during runtime, but I keep getting NullPointerExceptions or nothing happens when I press the magic button that's supposed to do things. Is it even possible in Java? Here is my code in its entirety: import java.text.*; import javax.swing.text.*; import java.util.*; import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; public class Shell implements ActionListener, MenuKeyListener { JFrame frame; JWindow window; JButton PSubmit; JPanel pane1, pane2; JRadioButton R1, R2, R3; ButtonGroup PGroup; JTabbedPane layout; String result; String border = "Border.png"; String DF = "Frame.png"; String list []; Driver driver; public Shell() { driver = new Driver(); list = new String [6]; } public void setFrame() { frame = new JFrame("Pokemon Program 3 by Systems Ready"); frame.setSize(600, 600); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); frame.getContentPane().setLayout(new BorderLayout()); } public void frameLayout() { layout = new JTabbedPane(); JPanel pane1 = new JPanel(); JPanel pane2 = new JPanel(); JLabel label = new JLabel("Please choose the restrictions:"); JLabel imgLabel1 = new JLabel(new ImageIcon(border)); JLabel notiLabel1 = new JLabel("The Pokemon chosen with these restrictions are: "); JLabel notiLabel2 = new JLabel("'No Restrictions': No restrictions for the kind of Pokemon chosen based on species or items."); JLabel notiLabel3 = new JLabel("'Battle Revolution': All Pokemon must have unique items."); JLabel notiLabel4 = new JLabel("'Battle Tower': All Pokemon must have unique items, Uber and Event Legendaries banned."); JLabel label2 = new JLabel("Please choose possible Pokemon:"); pane1.add(label); pearlButtons(); pane1.add(R1); pane1.add(R2); pane1.add(R3); pane1.add(PSubmit); pane1.add(notiLabel2); pane1.add(notiLabel3); pane1.add(notiLabel4); pane1.add(imgLabel1); pane1.add(notiLabel1); JLabel pokeLabel1 = new JLabel(new ImageIcon(DF)); JLabel pokeLabel2 = new JLabel(new ImageIcon(DF)); JLabel pokeLabel3 = new JLabel(new ImageIcon(DF)); JLabel pokeLabel4 = new JLabel(new ImageIcon(DF)); JLabel pokeLabel5 = new JLabel(new ImageIcon(DF)); JLabel pokeLabel6 = new JLabel(new ImageIcon(DF)); pane1.add(pokeLabel1); pane1.add(pokeLabel2); pane1.add(pokeLabel3); pane1.add(pokeLabel4); pane1.add(pokeLabel5); pane1.add(pokeLabel6); pane2.add(label2); layout.add("Pearl Version", pane1); layout.add("SoulSilver Version", pane2); frame.add(layout); } public void pearlButtons() { PGroup = new ButtonGroup(); R1 = new JRadioButton("No Restrictions", true); R1.setActionCommand("N"); R1.setVisible(true); R2 = new JRadioButton("Battle Revolution"); R2.setActionCommand("BR"); R2.setVisible(true); R3 = new JRadioButton("Battle Tower"); R3.setActionCommand("B"); R3.setVisible(true); PGroup.add(R1); PGroup.add(R2); PGroup.add(R3); PSubmit = new JButton("Submit"); PSubmit.setActionCommand("pstart"); PSubmit.setVisible(true); PSubmit.addActionListener(this); } public void pearlProcessing() { //The "list" array has a bunch of string names that get .png affixed to them (and I named the image files as such when I name them) String file1 = list[0] + ".png"; String file2 = list[1] + ".png"; String file3 = list[2] + ".png"; String file4 = list[3] + ".png"; String file5 = list[4] + ".png"; String file6 = list[5] + ".png"; /*-------------------------------------------------------------------------------// This is where the method's supposed to go to change the image... I've tried pokeLabel = new JLabel(new ImageIcon(file1));, but that yields a NullPointerException. //-----------------------------------------------------------------------------------*/ } public static void main(String[] args) { Shell test = new Shell(); test.setFrame(); test.frameLayout(); test.frame.setVisible(true); } public void actionPerformed(ActionEvent e) { if ("pstart".equals(e.getActionCommand())) { result = PGroup.getSelection().getActionCommand(); if (result.equals("N")) { list = driver.Prandom(); pearlProcessing(); } else System.out.println("Not done yet! ;)"); } } public void menuKeyPressed(MenuKeyEvent e) { System.out.println("pressed"); } public void menuKeyReleased(MenuKeyEvent e) { System.out.println("menuKeyReleased"); } public void menuKeyTyped(MenuKeyEvent e) { System.out.println("menuKeyTyped"); } }

Read the article

Can ping IP address and nslookup hostname but cannot ping hostname

- by jao

On a windows 2003 server I can nslookup www.google.com which returns Server: localhost Address: 127.0.0.1 Non-authoritative answer: Name: www.l.google.com Addresses: 74.125.79.104, 74.125.79.147, 74.125.79.99 Aliases: www.google.com I can then ping 74.125.79.104: Pinging 74.125.79.104 with 32 bytes of data: Reply from 74.125.79.104: bytes=32 time=16ms TTL=54 Reply from 74.125.79.104: bytes=32 time=32ms TTL=54 Reply from 74.125.79.104: bytes=32 time=15ms TTL=54 Reply from 74.125.79.104: bytes=32 time=15ms TTL=54 Ping statistics for 74.125.79.104: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 15ms, Maximum = 32ms, Average = 19ms But I cannot ping www.google.com: Ping request could not find host www.google.com. Please check the name and try again. (this one is different from the other question in that this one has a TLD, it is not a local domain.) Update: I am running a dns server at localhost (127.0.0.1). Even when I change it to use for example opendns, it still can nslookup hostname and ping ip address, but not ping hostname. So what is wrong? Update 2: here is the ipconfig /all result: Windows IP Configuration Host Name . . . . . . . . . . . . : SERVER Primary Dns Suffix . . . . . . . : NETWORK.local Node Type . . . . . . . . . . . . : Unknown IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : NETWORK.local Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Broadcom NetXtreme Gigabit Ethernet #2 Physical Address. . . . . . . . . : 00-0F-1F-56-3B-AA DHCP Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : 192.168.7.2 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.7.1 DNS Servers . . . . . . . . . . . : 127.0.0.1 Update 3: Thanks everyone for their help and suggestions. I appreciate that. Ipconfig /flushdns returns: Sucessfully flushed the DNS resolver cache Ipconfig /displaydns returns: 2.7.168.192.in-addr.arpa ---------------------------------------- Record Name . . . . . : 2.7.168.192.in-addr.arpa. Record Type . . . . . : 12 Time To Live . . . . : 0 Data Length . . . . . : 4 Section . . . . . . . : Answer PTR Record . . . . . : webserver.mydomainname.com 1.0.0.127.in-addr.arpa ---------------------------------------- Record Name . . . . . : 1.0.0.127.in-addr.arpa. Record Type . . . . . : 12 Time To Live . . . . : 0 Data Length . . . . . : 4 Section . . . . . . . : Answer PTR Record . . . . . : localhost Update 4: Wireshark shows the following: 3 11.540542 208.67.220.220 192.168.7.2 DNS Standard query response A 74.125.79.99 A 74.125.79.104 A 74.125.79.147 6 42.056794 192.168.7.2 192.168.7.255 NBNS Name query NB WWW.GOOGLE.COM<00> which is weird: when I ping, it sends a packet to 192.168.7.255 instead of asking the DNS server for an address

Read the article

Xenserver 5.5 U2 a bit unstable with an unstable W2003 VM

- by twistedbrain

In the last week I had to reboot the host system twice and the second one by means of the power button. The system is a Dell PE 6950 (4 Opteron dual core, 2,8 Ghz, 16 GB RAM, 900 GB disk in a RAID 10 array composed by 4 450GB 15000 rpm disks) with XenServer 5.5 U2. We're installing it and at now there are working in production a 2003 32 bit Windows server VM with 2 GB RAM, 3 vcpu and about 200 GB disk in 4 partition (12 GB boot, 20 GB program, 80 GB user data, 80 GB other data). The first time I was compressing many Windows 2003 folders (some tens GB by means of W2003 compressed folder option) from a Windows remote console and some hours before my colleague installed Backup Exec agent that was alredy installed and that required a reboot (that was pending). The console stopped responding, it was no more possible to connect by means of remote console or by means of the console of the XenCentre, it was still possible from the network to use the shared folder of the VM and the programs on it (2 db and a GIS program), but the print server didn't work any more and I couldn't give remote reboot from other domain controller hosts. I couldn't stop the virtual machine neither from the XenCentre, neither from the command line of the host also forcing the reboot. I had to reboot the host server. Yesterday it has been worst. I installed a template of another VM, CentOS 5.3 and then, put the DVD in the drive of the host. Then, before the install and after the boot I checked for defect the DVD and the W2003 VM began to respond slowly (I was connected by means of an administration remote console) the task manager showed only mid or low load, it is, only the first of the 3 vcpu was loaded (about 70%), while the other two were about at 20% and also the disk I/O was not so heavy. Then the users were not so happy because they couldn't any more use the MS word docs on the server. I immediately stopped the check of the DVD (to do that I had to force the stop of such Centos 5.3 VM), then some users could again use their docs, but other had still problems, so I decided to reboot the VM, but it doesn't stopped, neither from XenCenter, neither from command line, neither forcing the reboot. Then I tried to reboot of the host, but it didn't worked, neither from the XenCentre, neither from the host prompt (shutdown -r now as root: it told that it was shutting down, but then it didn't did that). So I had to power off by means of the power button of the server (before I tried some Magic SyS REQ, but I saw that Xen isn't compiled with this option enabled). What could you suggest about my problem, what can I look, search and see? In the W2003 VM logs there are no errors or warning to explain what happened. Some more exciting, amusing and inspiring words of poetry (the facts happened around 11 am): \# egrep -i 'err|warning' xensource.log [20100219 10:32:05.597|debug|culo|6301 unix-RPC|VBD.plug R:c81bcda701f6|xenops] watch: watching xenstore paths: [ /xapi/0/frontend/vbd/51712/hotplug; /local/domain/0/backend/vbd/0/51712/tapdisk-error ] with timeout 1200.000000 seconds [20100219 10:32:05.597|debug|culo|6301 unix-RPC|VBD.plug R:c81bcda701f6|xenops] watch: fired on /local/domain/0/backend/vbd/0/51712/tapdisk-error [20100219 10:32:14.314|debug|culo|6335 unix-RPC|VBD.unplug R:9258f54578d6|xenops] watch: watching xenstore paths: [ /local/domain/0/backend/vbd/0/51712/shutdown-done; /local/domain/0/error/device/vbd/51712/error ] with timeout 1200.000000 seconds [20100219 10:32:14.337|debug|culo|6335 unix-RPC|VBD.unplug R:9258f54578d6|xenops] xenstore-rm /local/domain/0/error/backend/vbd/0 [20100219 10:32:14.337|debug|culo|6335 unix-RPC|VBD.unplug R:9258f54578d6|xenops] xenstore-rm /local/domain/0/error/device/vbd/51712 [20100219 10:32:14.338|debug|culo|6335 unix-RPC|VBD.unplug R:9258f54578d6|xenops] watch: fired on /local/domain/0/error/device/vbd/51712/error [20100219 10:53:48.903|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|helpers] Ignoring exception: INTERNAL_ERROR: [ Xb.Noent ] while Vmops.destroy_domain: Destroying domid 14 guest session [20100219 10:53:52.048|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/0/error/backend/tap/14 [20100219 10:53:52.048|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/14/error/device/vbd/51744 [20100219 10:53:52.085|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/0/error/backend/tap/14 [20100219 10:53:52.086|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/14/error/device/vbd/51728 [20100219 10:53:52.122|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/0/error/backend/tap/14 [20100219 10:53:52.122|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/14/error/device/vbd/51712 [20100219 10:53:52.127|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/0/error/backend/vbd/14 [20100219 10:53:52.128|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/14/error/device/vbd/51760 [20100219 10:53:52.496|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] Device.Vif.hard_shutdown about to blow away backend and error paths [20100219 10:53:52.497|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/0/error/backend/vif/14 [20100219 10:53:52.497|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/14/error/device/vif/0 [20100219 10:53:53.385|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] Device.Vif.hard_shutdown about to blow away backend and error paths [20100219 10:53:53.386|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/0/error/backend/vif/14 [20100219 10:53:53.386|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/14/error/device/vif/1 [20100219 10:53:53.389| warn|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|hotplug] Warning, deleting 'vif' entry from /xapi/14/hotplug/vif/0 [20100219 10:53:53.391| warn|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|hotplug] Warning, deleting 'vif' entry from /xapi/14/hotplug/vif/1 [20100219 11:20:49.766|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|helpers] Ignoring exception: INTERNAL_ERROR: [ Xb.Noent ] while Vmops.destroy_domain: Destroying domid 11 guest session [20100219 11:20:50.339|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/0/error/backend/tap/11 [20100219 11:20:50.339|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/11/error/device/vbd/832 [20100219 11:20:50.360|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/0/error/backend/tap/11 [20100219 11:20:50.360|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/11/error/device/vbd/768 [20100219 11:20:50.366|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/0/error/backend/vbd/11 [20100219 11:20:50.366|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/11/error/device/vbd/5696 [20100219 11:20:50.753|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] Device.Vif.hard_shutdown about to blow away backend and error paths [20100219 11:20:50.754|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/0/error/backend/vif/11 [20100219 11:20:50.754|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/11/error/device/vif/1 [20100219 11:20:50.757| warn|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|hotplug] Warning, deleting 'vif' entry from /xapi/11/hotplug/vif/1 [20100219 11:28:13.803|debug|culo|6610 inet-RPC|Connection to VM console R:e9f8b76e8975|console] error: INTERNAL_ERROR: [ Unix.Unix_error(63, "connect", "") ]

Read the article

Async ignored on AJAX requests on Nginx server

- by eComEvo

Despite sending an async request to the server over AJAX, the server will not respond until the previous unrelated request has finished. The following code is only broken in this way on Nginx, but runs perfectly on Apache. This call will start a background process and it waits for it to complete so it can display the final result. $.ajax({ type: 'GET', async: true, url: $(this).data('route'), data: $('input[name=data]').val(), dataType: 'json', success: function (data) { /* do stuff */} error: function (data) { /* handle errors */} }); The below is called after the above, which on Apache requires 100ms to execute and repeats itself, showing progress for data being written in the background: checkStatusInterval = setInterval(function () { $.ajax({ type: 'GET', async: false, cache: false, url: '/process-status?process=' + currentElement.attr('id'), dataType: 'json', success: function (data) { /* update progress bar and status message */ } }); }, 1000); Unfortunately, when this script is run from nginx, the above progress request never even finishes a single request until the first AJAX request that sent the data is done. If I change the async to TRUE in the above, it executes one every interval, but none of them complete until that very first AJAX request finishes. Here is the main nginx conf file: #user nobody; worker_processes 1; #error_log logs/error.log; #error_log logs/error.log notice; #error_log logs/error.log info; #pid logs/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; server_names_hash_bucket_size 64; # configure temporary paths # nginx is started with param -p, setting nginx path to serverpack installdir fastcgi_temp_path temp/fastcgi; uwsgi_temp_path temp/uwsgi; scgi_temp_path temp/scgi; client_body_temp_path temp/client-body 1 2; proxy_temp_path temp/proxy; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; #access_log logs/access.log main; # Sendfile copies data between one FD and other from within the kernel. # More efficient than read() + write(), since the requires transferring data to and from the user space. sendfile on; # Tcp_nopush causes nginx to attempt to send its HTTP response head in one packet, # instead of using partial frames. This is useful for prepending headers before calling sendfile, # or for throughput optimization. tcp_nopush on; # don't buffer data-sends (disable Nagle algorithm). Good for sending frequent small bursts of data in real time. tcp_nodelay on; types_hash_max_size 2048; # Timeout for keep-alive connections. Server will close connections after this time. keepalive_timeout 90; # Number of requests a client can make over the keep-alive connection. This is set high for testing. keepalive_requests 100000; # allow the server to close the connection after a client stops responding. Frees up socket-associated memory. reset_timedout_connection on; # send the client a "request timed out" if the body is not loaded by this time. Default 60. client_header_timeout 20; client_body_timeout 60; # If the client stops reading data, free up the stale client connection after this much time. Default 60. send_timeout 60; # Size Limits client_body_buffer_size 64k; client_header_buffer_size 4k; client_max_body_size 8M; # FastCGI fastcgi_connect_timeout 60; fastcgi_send_timeout 120; fastcgi_read_timeout 300; # default: 60 secs; when step debugging with XDEBUG, you need to increase this value fastcgi_buffer_size 64k; fastcgi_buffers 4 64k; fastcgi_busy_buffers_size 128k; fastcgi_temp_file_write_size 128k; # Caches information about open FDs, freqently accessed files. open_file_cache max=200000 inactive=20s; open_file_cache_valid 30s; open_file_cache_min_uses 2; open_file_cache_errors on; # Turn on gzip output compression to save bandwidth. # http://wiki.nginx.org/HttpGzipModule gzip on; gzip_disable "MSIE [1-6]\.(?!.*SV1)"; gzip_http_version 1.1; gzip_vary on; gzip_proxied any; #gzip_proxied expired no-cache no-store private auth; gzip_comp_level 6; gzip_buffers 16 8k; gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript; # show all files and folders autoindex on; server { # access from localhost only listen 127.0.0.1:80; server_name localhost; root www; # the following default "catch-all" configuration, allows access to the server from outside. # please ensure your firewall allows access to tcp/port 80. check your "skype" config. # listen 80; # server_name _; log_not_found off; charset utf-8; access_log logs/access.log main; # handle files in the root path /www location / { index index.php index.html index.htm; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root www; } # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9100 # location ~ \.php$ { try_files $uri =404; fastcgi_pass 127.0.0.1:9100; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; } # add expire headers location ~* ^.+.(gif|ico|jpg|jpeg|png|flv|swf|pdf|mp3|mp4|xml|txt|js|css)$ { expires 30d; } # deny access to .htaccess files (if Apache's document root concurs with nginx's one) # deny access to git & svn repositories location ~ /(\.ht|\.git|\.svn) { deny all; } } # include config files of "enabled" domains include domains-enabled/*.conf; } Here is the enabled domain conf file: access_log off; access_log C:/server/www/test.dev/logs/access.log; error_log C:/server/www/test.dev/logs/error.log; # HTTP Server server { listen 127.0.0.1:80; server_name test.dev; root C:/server/www/test.dev/public; index index.php; rewrite_log on; default_type application/octet-stream; #include /etc/nginx/mime.types; # Include common configurations. include domains-common/location.conf; } # HTTPS server server { listen 443 ssl; server_name test.dev; root C:/server/www/test.dev/public; index index.php; rewrite_log on; default_type application/octet-stream; #include /etc/nginx/mime.types; # Include common configurations. include domains-common/location.conf; include domains-common/ssl.conf; } Contents of ssl.conf: # OpenSSL for HTTPS connections. ssl on; ssl_certificate C:/server/bin/openssl/certs/cert.pem; ssl_certificate_key C:/server/bin/openssl/certs/cert.key; ssl_session_timeout 5m; ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2; ssl_ciphers HIGH:!aNULL:!MD5; ssl_prefer_server_ciphers on; # Pass the PHP scripts to FastCGI server listening on 127.0.0.1:9100 location ~ \.php$ { try_files $uri =404; fastcgi_param HTTPS on; fastcgi_pass 127.0.0.1:9100; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; } Contents of location.conf: # Remove trailing slash to please Laravel routing system. if (!-d $request_filename) { rewrite ^/(.+)/$ /$1 permanent; } location / { try_files $uri $uri/ /index.php?$query_string; } # We don't need .ht files with nginx. location ~ /(\.ht|\.git|\.svn) { deny all; } # Added cache headers for images. location ~* \.(png|jpg|jpeg|gif)$ { expires 30d; log_not_found off; } # Only 3 hours on CSS/JS to allow me to roll out fixes during early weeks. location ~* \.(js|css)$ { expires 3h; log_not_found off; } # Add expire headers. location ~* ^.+.(gif|ico|jpg|jpeg|png|flv|swf|pdf|mp3|mp4|xml|txt)$ { expires 30d; } # Pass the PHP scripts to FastCGI server listening on 127.0.0.1:9100 location ~ \.php$ { try_files $uri /index.php =404; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; fastcgi_pass 127.0.0.1:9100; } Any ideas where this is going wrong?

Read the article

./a.out termniated . Garbage output due to smashing of stack . How to remove this error ?

- by mekasperasky

#include <iostream> #include <fstream> #include <cstring> using namespace std; typedef unsigned long int WORD; /* Should be 32-bit = 4 bytes */ #define w 32 /* word size in bits */ #define r 12 /* number of rounds */ #define b 16 /* number of bytes in key */ #define c 4 /* number words in key */ /* c = max(1,ceil(8*b/w)) */ #define t 26 /* size of table S = 2*(r+1) words */ WORD S [t],L[c]; /* expanded key table */ WORD P = 0xb7e15163, Q = 0x9e3779b9; /* magic constants */ /* Rotation operators. x must be unsigned, to get logical right shift*/ #define ROTL(x,y) (((x)<<(y&(w-1))) | ((x)>>(w-(y&(w-1))))) #define ROTR(x,y) (((x)>>(y&(w-1))) | ((x)<<(w-(y&(w-1))))) void RC5_ENCRYPT(WORD *pt, WORD *ct) /* 2 WORD input pt/output ct */ { WORD i, A=pt[0]+S[0], B=pt[1]+S[1]; for (i=1; i<=r; i++) { A = ROTL(A^B,B)+S[2*i]; B = ROTL(B^A,A)+S[2*i+1]; } ct [0] = A ; ct [1] = B ; } void RC5_DECRYPT(WORD *ct, WORD *pt) /* 2 WORD input ct/output pt */ { WORD i, B=ct[1], A=ct[ 0]; for (i=r; i>0; i--) { B = ROTR(B-S [2*i+1],A)^A; A = ROTR(A-S [2*i],B)^B; } pt [1] = B-S [1] ;pt [0] = A-S [0]; } void RC5_SETUP(unsigned char *K) /* secret input key K 0...b-1] */ { WORD i, j, k, u=w/8, A, B, L [c]; /* Initialize L, then S, then mix key into S */ for (i=b-1,L[c-1]=0; i!=-1; i--) L[i/u] = (L[i/u]<<8)+K[ i]; for (S [0]=P,i=1; i<t; i++) S [i] = S [i-1]+Q; for (A=B=i=j=k=0; k<3*t; k++,i=(i+1)%t,j=(j+1)%c) /* 3*t > 3*c */ { A = S[i] = ROTL(S [i]+(A+B),3); B = L[j] = ROTL(L[j]+(A+B),(A+B)); } } void printword(WORD A) { WORD k; for (k=0 ;k<w; k+=8) printf("%c"); } int main() { WORD i, j, k,ptext, pt1 [2], pt2 [2], ct [2] = {0,0}; ifstream in("key1.txt"); ifstream in1("plt.txt"); ofstream out1("cpt.txt"); if(!in) { cout << "Cannot open file.\n"; return 1; } if(!in1) { cout << "Cannot open file.\n"; return 1; } unsigned char key[b]; in >> key; in1 >> pt1[0]; in1 >> pt1[0]; if (sizeof(WORD)!=4) printf("RC5 error: WORD has %d bytes.\n",sizeof(WORD)); RC5_SETUP(key); RC5_ENCRYPT(pt1,ct); printf("\n plaintext "); printword(pt1 [0]); printword(pt1 [1]); printf(" ---> ciphertext "); printword(ct [0]); printword(ct [1]); printf("\n"); RC5_SETUP(key); RC5_DECRYPT(ct,pt2); out1<<ct[0]; out1<<ct[1]; out1 <<"\n"; printf("\n plaintext "); printword(pt1 [0]); printword(pt1 [1]); return 0; } Let the plt.txt file contain 101 100 let the key be 111

Read the article

SSH login very slow on OS X Leopard

- by acjohnson55

My SSH sessions take a very long time to initiate. This applies for logins with and without passwords, interactive and non-interactive. I have tried setting 'GSSAPIAuthentication no' and 'IPQoS 0x00' on the client side, and 'UseDNS no' on the server side, but no dice. I'm really stumped and frustrated. The worst part is that it SFTP takes forever to establish connections too, making file transfer much longer than it would be otherwise. I thought the problem might be something with PAM, because of where the hang is in the sshd log below, so I tried commenting out each line one-by-one in the /etc/pam.d/sshd file. Some caused login to be impossible, some had no apparent effect. I can't really tell if PAM is stalling for other services, but I can say that su'ing into my account from another account with 'su -l' has no apparent delay. I tried creating a new user account, just to see if there was something wrong with my existing account, and the same problem persisted. Any ideas of what's going on? On the client side, the most verbose mode outputs (redacted where reasonable): OpenSSH_5.9p1, OpenSSL 0.9.8r 8 Feb 2011 debug1: Reading configuration data ... debug1: ... line 1: Applying options for ... debug1: Reading configuration data /etc/ssh_config debug1: /etc/ssh_config line 20: Applying options for * debug1: /etc/ssh_config line 53: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to ... [x.x.x.x] port 22. debug1: Connection established. debug1: identity file /.../.ssh/id_rsa type -1 debug1: identity file /.../.ssh/id_rsa-cert type -1 debug3: Incorrect RSA1 identifier debug3: Could not load "/.../.ssh/id_dsa" as a RSA1 public key debug1: identity file /.../.ssh/id_dsa type 2 debug1: identity file /.../.ssh/id_dsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.2 debug1: match: OpenSSH_5.2 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.9 debug2: fd 3 setting O_NONBLOCK debug3: load_hostkeys: loading entries for host "..." from file "/.../.ssh/known_hosts" debug3: load_hostkeys: found key type RSA in file /.../.ssh/known_hosts:9 debug3: load_hostkeys: loaded 1 keys debug3: order_hostkeyalgs: prefer hostkeyalgs: [email protected],[email protected],ssh-rsa debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: [email protected],[email protected],ssh-rsa,[email protected],[email protected],ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,[email protected],zlib debug2: kex_parse_kexinit: none,[email protected],zlib debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,[email protected] debug2: kex_parse_kexinit: none,[email protected] debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: mac_setup: found hmac-md5 debug1: kex: server->client aes128-ctr hmac-md5 none debug2: mac_setup: found hmac-md5 debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug2: dh_gen_key: priv key bits set: 136/256 debug2: bits set: 523/1024 debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Server host key: RSA ... debug3: load_hostkeys: loading entries for host "..." from file "/.../.ssh/known_hosts" debug3: load_hostkeys: found key type RSA in file /.../.ssh/known_hosts:9 debug3: load_hostkeys: loaded 1 keys debug3: load_hostkeys: loading entries for host "x.x.x.x" from file "/.../.ssh/known_hosts" debug3: load_hostkeys: found key type RSA in file /.../.ssh/known_hosts:9 debug3: load_hostkeys: loaded 1 keys debug1: Host '...' is known and matches the RSA host key. debug1: Found key in /.../.ssh/known_hosts:9 debug2: bits set: 492/1024 debug1: ssh_rsa_verify: signature correct debug2: kex_derive_keys debug2: set_newkeys: mode 1 debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug2: set_newkeys: mode 0 debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /.../.ssh/id_dsa (0x7f8b7b41d6c0) debug2: key: /.../.ssh/id_rsa (0x0) debug1: Authentications that can continue: publickey,password,keyboard-interactive debug3: start over, passed a different list publickey,password,keyboard-interactive debug3: preferred publickey,keyboard-interactive,password debug3: authmethod_lookup publickey debug3: remaining preferred: keyboard-interactive,password debug3: authmethod_is_enabled publickey debug1: Next authentication method: publickey debug1: Offering DSA public key: /.../.ssh/id_dsa debug3: send_pubkey_test debug2: we sent a publickey packet, wait for reply debug1: Server accepts key: pkalg ssh-dss blen 434 debug2: input_userauth_pk_ok: fp ... debug3: sign_and_send_pubkey: DSA ... debug1: Authentication succeeded (publickey). Authenticated to ... ([x.x.x.x]:22). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Requesting [email protected] debug1: Entering interactive session. ****** Hangs here ****** debug2: callback start debug2: client_session2_setup: id 0 debug2: fd 3 setting TCP_NODELAY debug2: channel 0: request pty-req confirm 1 debug1: Sending environment. debug3: Ignored env TERM_PROGRAM debug3: Ignored env SHELL debug3: Ignored env TERM debug3: Ignored env TMPDIR debug3: Ignored env Apple_PubSub_Socket_Render debug3: Ignored env TERM_PROGRAM_VERSION debug3: Ignored env TERM_SESSION_ID debug3: Ignored env USER debug3: Ignored env COMMAND_MODE debug3: Ignored env SSH_AUTH_SOCK debug3: Ignored env Apple_Ubiquity_Message debug3: Ignored env __CF_USER_TEXT_ENCODING debug3: Ignored env PATH debug3: Ignored env MKL_NUM_THREADS debug3: Ignored env PWD debug1: Sending env LANG = en_US.UTF-8 debug2: channel 0: request env confirm 0 debug3: Ignored env HOME debug3: Ignored env SHLVL debug3: Ignored env DYLD_LIBRARY_PATH debug3: Ignored env PYTHONPATH debug3: Ignored env LOGNAME debug3: Ignored env DISPLAY debug3: Ignored env SECURITYSESSIONID debug3: Ignored env _ debug2: channel 0: request shell confirm 1 debug2: callback done debug2: channel 0: open confirm rwindow 0 rmax 32768 debug2: channel_input_status_confirm: type 99 id 0 debug2: PTY allocation request accepted on channel 0 debug2: channel 0: rcvd adjust 2097152 debug2: channel_input_status_confirm: type 99 id 0 debug2: shell request accepted on channel 0 On the server side, the debug output looks like: Sep 16 18:46:40 ... sshd[31435]: debug1: inetd sockets after dupping: 3, 4 Sep 16 18:46:40 ... sshd[31435]: Connection from x.x.x.x port 52758 Sep 16 18:46:40 ... sshd[31435]: debug1: Current Session ID is 56AC0FB0 / Session Attributes are 00008000 Sep 16 18:46:40 ... sshd[31435]: debug1: Running in inetd mode in a non-root session... assuming inetd created the session for us. Sep 16 18:46:40 ... sshd[31435]: debug1: Client protocol version 2.0; client software version OpenSSH_5.9 Sep 16 18:46:40 ... sshd[31435]: debug1: match: OpenSSH_5.9 pat OpenSSH* Sep 16 18:46:40 ... sshd[31435]: debug1: Enabling compatibility mode for protocol 2.0 Sep 16 18:46:40 ... sshd[31435]: debug1: Local version string SSH-2.0-OpenSSH_5.2 Sep 16 18:46:40 ... sshd[31435]: debug1: Checking with Service ACLs for ssh login restrictions Sep 16 18:46:40 ... sshd[31435]: debug1: call to mbr_user_name_to_uuid with <...> suceeded to retrieve user_uuid Sep 16 18:46:40 ... sshd[31435]: debug1: Call to mbr_check_service_membership failed with status <0> Sep 16 18:46:40 ... sshd[31435]: debug1: PAM: initializing for "..." Sep 16 18:46:40 ... sshd[31435]: debug1: PAM: setting PAM_RHOST to "x.x.x.x" Sep 16 18:46:40 ... sshd[31435]: Failed none for ... from x.x.x.x port 52758 ssh2 Sep 16 18:46:40 ... sshd[31435]: debug1: temporarily_use_uid: 509/20 (e=0/0) Sep 16 18:46:40 ... sshd[31435]: debug1: trying public key file /.../.ssh/authorized_keys Sep 16 18:46:40 ... sshd[31435]: debug1: restore_uid: 0/0 Sep 16 18:46:40 ... sshd[31435]: debug1: temporarily_use_uid: 509/20 (e=0/0) Sep 16 18:46:40 ... sshd[31435]: debug1: trying public key file /.../.ssh/authorized_keys2 Sep 16 18:46:40 ... sshd[31435]: debug1: fd 5 clearing O_NONBLOCK Sep 16 18:46:40 ... sshd[31435]: debug1: matching key found: file /.../.ssh/authorized_keys2, line 1 Sep 16 18:46:40 ... sshd[31435]: Found matching DSA key: ... Sep 16 18:46:40 ... sshd[31435]: debug1: restore_uid: 0/0 Sep 16 18:46:40 ... sshd[31435]: debug1: temporarily_use_uid: 509/20 (e=0/0) Sep 16 18:46:40 ... sshd[31435]: debug1: trying public key file /.../.ssh/authorized_keys Sep 16 18:46:40 ... sshd[31435]: debug1: restore_uid: 0/0 Sep 16 18:46:40 ... sshd[31435]: debug1: temporarily_use_uid: 509/20 (e=0/0) Sep 16 18:46:40 ... sshd[31435]: debug1: trying public key file /.../.ssh/authorized_keys2 Sep 16 18:46:40 ... sshd[31435]: debug1: fd 5 clearing O_NONBLOCK Sep 16 18:46:40 ... sshd[31435]: debug1: matching key found: file /.../.ssh/authorized_keys2, line 1 Sep 16 18:46:40 ... sshd[31435]: Found matching DSA key: ... Sep 16 18:46:40 ... sshd[31435]: debug1: restore_uid: 0/0 Sep 16 18:46:40 ... sshd[31435]: debug1: ssh_dss_verify: signature correct Sep 16 18:46:40 ... sshd[31435]: debug1: do_pam_account: called Sep 16 18:46:40 ... sshd[31435]: Accepted publickey for ... from x.x.x.x port 52758 ssh2 Sep 16 18:46:40 ... sshd[31435]: debug1: monitor_child_preauth: ... has been authenticated by privileged process Sep 16 18:46:40 ... sshd[31435]: debug1: PAM: establishing credentials ***** Hangs here ***** Sep 16 18:46:54 ... sshd[31435]: User child is on pid 31654 Sep 16 18:46:54 ... sshd[31654]: debug1: PAM: establishing credentials Sep 16 18:46:54 ... sshd[31654]: debug1: permanently_set_uid: 509/20 Sep 16 18:46:54 ... sshd[31654]: debug1: Entering interactive session for SSH2. Sep 16 18:46:54 ... sshd[31654]: debug1: server_init_dispatch_20 Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_open: ctype session rchan 0 win 1048576 max 16384 Sep 16 18:46:54 ... sshd[31654]: debug1: input_session_request Sep 16 18:46:54 ... sshd[31654]: debug1: channel 0: new [server-session] Sep 16 18:46:54 ... sshd[31654]: debug1: session_new: session 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_open: channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_open: session 0: link with channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_open: confirm session Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_global_request: rtype [email protected] want_reply 0 Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_req: channel 0 request pty-req reply 1 Sep 16 18:46:54 ... sshd[31654]: debug1: session_by_channel: session 0 channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_input_channel_req: session 0 req pty-req Sep 16 18:46:54 ... sshd[31654]: debug1: Allocating pty. Sep 16 18:46:54 ... sshd[31435]: debug1: session_new: session 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_pty_req: session 0 alloc /dev/ttys008 Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_req: channel 0 request env reply 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_by_channel: session 0 channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_input_channel_req: session 0 req env Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_req: channel 0 request shell reply 1 Sep 16 18:46:54 ... sshd[31654]: debug1: session_by_channel: session 0 channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_input_channel_req: session 0 req shell Sep 16 18:46:54 ... sshd[31655]: debug1: Setting controlling tty using TIOCSCTTY.

Read the article

Approaches for generic, compile-time safe lazy-load methods

- by Aaronaught

Suppose I have created a wrapper class like the following: public class Foo : IFoo { private readonly IFoo innerFoo; public Foo(IFoo innerFoo) { this.innerFoo = innerFoo; } public int? Bar { get; set; } public int? Baz { get; set; } } The idea here is that the innerFoo might wrap data-access methods or something similarly expensive, and I only want its GetBar and GetBaz methods to be invoked once. So I want to create another wrapper around it, which will save the values obtained on the first run. It's simple enough to do this, of course: int IFoo.GetBar() { if ((Bar == null) && (innerFoo != null)) Bar = innerFoo.GetBar(); return Bar ?? 0; } int IFoo.GetBaz() { if ((Baz == null) && (innerFoo != null)) Baz = innerFoo.GetBaz(); return Baz ?? 0; } But it gets pretty repetitive if I'm doing this with 10 different properties and 30 different wrappers. So I figured, hey, let's make this generic: T LazyLoad<T>(ref T prop, Func<IFoo, T> loader) { if ((prop == null) && (innerFoo != null)) prop = loader(innerFoo); return prop; } Which almost gets me where I want, but not quite, because you can't ref an auto-property (or any property at all). In other words, I can't write this: int IFoo.GetBar() { return LazyLoad(ref Bar, f => f.GetBar()); // <--- Won't compile } Instead, I'd have to change Bar to have an explicit backing field and write explicit getters and setters. Which is fine, except for the fact that I end up writing even more redundant code than I was writing in the first place. Then I considered the possibility of using expression trees: T LazyLoad<T>(Expression<Func<T>> propExpr, Func<IFoo, T> loader) { var memberExpression = propExpr.Body as MemberExpression; if (memberExpression != null) { // Use Reflection to inspect/set the property } } This plays nice with refactoring - it'll work great if I do this: return LazyLoad(f => f.Bar, f => f.GetBar()); But it's not actually safe, because someone less clever (i.e. myself in 3 days from now when I inevitably forget how this is implemented internally) could decide to write this instead: return LazyLoad(f => 3, f => f.GetBar()); Which is either going to crash or result in unexpected/undefined behaviour, depending on how defensively I write the LazyLoad method. So I don't really like this approach either, because it leads to the possibility of runtime errors which would have been prevented in the first attempt. It also relies on Reflection, which feels a little dirty here, even though this code is admittedly not performance-sensitive. Now I could also decide to go all-out and use DynamicProxy to do method interception and not have to write any code, and in fact I already do this in some applications. But this code is residing in a core library which many other assemblies depend on, and it seems horribly wrong to be introducing this kind of complexity at such a low level. Separating the interceptor-based implementation from the IFoo interface by putting it into its own assembly doesn't really help; the fact is that this very class is still going to be used all over the place, must be used, so this isn't one of those problems that could be trivially solved with a little DI magic. The last option I've already thought of would be to have a method like: T LazyLoad<T>(Func<T> getter, Action<T> setter, Func<IFoo, T> loader) { ... } This option is very "meh" as well - it avoids Reflection but is still error-prone, and it doesn't really reduce the repetition that much. It's almost as bad as having to write explicit getters and setters for each property. Maybe I'm just being incredibly nit-picky, but this application is still in its early stages, and it's going to grow substantially over time, and I really want to keep the code squeaky-clean. Bottom line: I'm at an impasse, looking for other ideas. Question: Is there any way to clean up the lazy-loading code at the top, such that the implementation will: Guarantee compile-time safety, like the ref version; Actually reduce the amount of code repetition, like the Expression version; and Not take on any significant additional dependencies? In other words, is there a way to do this just using regular C# language features and possibly a few small helper classes? Or am I just going to have to accept that there's a trade-off here and strike one of the above requirements from the list?

Read the article

Multiple routers, subnets, gateways etc

- by allentown

My current setup is: Cable modem dishes out 13 static IP's (/28), a GB switch is plugged into the cable modem, and has access to those 13 static IP's, I have about 6 "servers" in use right now. The cable modem is also a firewall, DHCP server, and 3 port 10/100 switch. I am using it as a firewall, but not currently as a DHCP server. I have plugged into the cable modem, two network cables, one which goes to the WAN port of a Linksys Dual Band Wireless 10/100/1000 router/switch. Into the linksys are a few workstations, a few printers, and some laptops connecting to wifi. I set the Linksys to use take static IP, and enabled DHCP for the workstations, printers, etc in 192.168.1.1/24. The network for the Linksys is mostly self contained, backups go to a SAN, on that network, it all happens through that switch, over GB. But I also get internet access from it as well via the cable modem using one static IP. This all works, however, I can not "see" the static IP machines when I am on the Linksys. I can get to them via ssh and other protocols, and if I want to from "outside", I open holes, like 80, 25, 587, 143, 22, etc. The second wire, from the cable modem/fireall/switch just uplinks to the managed GB switch. What are the pros and cons of this? I do not like giving up the static IP to the Linksys. I basically have a mixed network of public servers, and internal workstations. I want the public servers on public IP's because I do not want to mess with port forwarding and mappings. Is it correct also, that if someone breaches the Linksys wifi, they still would have a hard time getting to the static IP range, just by nature of the network topology? Today, just for a test, I toggled on the DHCP in the firewall/cable modem at 10.1.10.1/24 range, the Linksys is n the 192.168.1.100/24 range. At that point, all the static IP machines still had in and out access, but Linksys was unreachable. The cable modem only has 10/100 ports, so I will not plug anything but the network drop into it, which is 50Mb/10Mb. Which makes me think this could be less than ideal, as transfers from the workstation network to the server network will be bottlenecked at 100Mb when I have 1000Mb available. I may not need to solve that, if isolation is better though. I do not move a lot of data, if any, from Linsys network to server network, so for it to pretend to be remote is ok. Should I approach this any different? I could enable DHCP on the cable modem/firewall, it should still send out the statics to the GB switch, but will also be a DHCP in 10.1.10.1/24 range? I can then plug the Linksys into the GB switch, which is now picking up statics and the 10.1.10.1/24 ranges, tell the Linksys to use 10.1.10.5 or so. Now, do I disable DHCP on the Linksys, and the cable modem/firewall will pass through the statics and 10.0.10.1/24 ranges as well? Or, could I open a second DHCP pool on the Linksys? I guess doing so gives me network isolation again, but it is just the reverse of what I have now. But I get out of the bottleneck, not that the Linksys could ever really touch real GB speeds anyway, but the managed switch certainly can. This is all because 13 statics are not that many. Right now, 6 "servers", the Linksys, a managed switch, a few SSL certs, and I am running out. I do not want to waste a static IP on the managed GB switch, or the Linksys, unless it provides me some type of benefit. Final question, under my current setup, if I am on a workstation, sitting at 192.168.1.109, the Linksys, with GB, and I send a file over ssh to the static IP machine, is that literally leaving the internet, and coming back in, or does it stay local? To me it seems like: Workstation (192.168.1.109) -> Linksys DHCP -> Linksys Static IP -> Cable Modem -> Server ( and it hits the 10/100 ports on the cable modem, slowing me down. But does it round trip the network, leave and come back in, limiting me to the 50/10 internet speeds? *These are all made up numbers, I do not use default router IP's as I will one day add a VPN, and do not want collisions. I need some recommendations, do I want one big network, or two isolated ones. Printers these days need an IP, everything does, I can not get autoconf/bonjour to be reliable on most printers. but I am also not sure I want the "server" side of my operation to be polluted by the workstation side of my operation. Unless there is some magic subetting I have not learned yet, here is what I am thinking: Cable modem 10/100, has 13 static IP, publicly accessible -> Enable DHCP on the cable modem -> Cable modem plugs into managed switch -> Managed switch gets 10.1.10.1 ssh, telnet, https admin management address -> Managed switch sends static IP's to to servers -> Plug Linksys into managed switch, giving it 10.1.10.2 static internally in Linksys admin -> Linksys gets assigned 10.1.10.x as its DHCP sending range -> Local printers, workstations, iPhones etc, connect to this -> ( Do I enable DHCP or disable it on the Linksys, just define a non over lapping range, or create an entirely new DHCP at 10.1.50.0/24, I think I am back isolated again with that method too? ) Thank you for any suggestions. This is the first time I have had to deal with less than a /24, and most are larger than that, but it is just a drop to a cabinet. Otherwise, it's a router, a few repeaters, and soho stuff that is simple, with one IP. I know a few may suggest going all DHCP on the servers, and I may one day, just not now, there has been too much moving of gear for me to be interested in that, and I would want something in the Catalyst series to deal with that.

Read the article

Fibre channel long distance woes

- by Marki

I need a fresh pair of eyes. We're using a 15km fibre optic line across which fibrechannel and 10GbE is multiplexed (passive optical CWDM). For FC we have long distance lasers suitable up to 40km (Skylane SFCxx0404F0D). The multiplexer is limited by the SFPs which can do max. 4Gb fibrechannel. The FC switch is a Brocade 5000 series. The respective wavelengths are 1550,1570,1590 and 1610nm for FC and 1530nm for 10GbE. The problem is the 4GbFC fabrics are almost never clean. Sometimes they are for a while even with a lot of traffic on them. Then they may suddenly start producing errors (RX CRC, RX encoding, RX disparity, ...) even with only marginal traffic on them. I am attaching some error and traffic graphs. Errors are currently in the order of 50-100 errors per 5 minutes when with 1Gb/s traffic. Optics Here is the power output of one port summarized (collected using sfpshow on different switches) SITE-A units=uW (microwatt) SITE-B ********************************************** FAB1 SW1 TX 1234.3 RX 49.1 SW3 1550nm (ko) RX 95.2 TX 1175.6 FAB2 SW2 TX 1422.0 RX 104.6 SW4 1610nm (ok) RX 54.3 TX 1468.4 What I find curious at this point is the asymmetry in the power levels. While SW2 transmits with 1422uW which SW4 receives with 104uW, SW2 only receives the SW4 signal with similar original power only with 54uW. Vice versa for SW1-3. Anyway the SFPs have RX sensitivity down to -18dBm (ca. 20uW) so in any case it should be fine... But nothing is. Some SFPs have been diagnosed as malfunctioning by the manufacturer (the 1550nm ones shown above with "ko"). The 1610nm ones apparently are ok, they have been tested using a traffic generator. The leased line has also been tested more than once. All is within tolerances. I'm awaiting the replacements but for some reason I don't believe it will make things better as the apparently good ones don't produce ZERO errors either. Earlier there was active equipment involved (some kind of 4GFC retimer) before putting the signal on the line. No idea why. That equipment was eliminated because of the problems so we now only have: the long distance laser in the switch, (new) 10m LC-SC monomode cable to the mux (for each fabric), the leased line, the same thing but reversed on the other side of the link. FC switches Here is a port config from the Brocade portcfgshow (it's like that on both sides, obviously) Area Number: 0 Speed Level: 4G Fill Word(On Active) 0(Idle-Idle) Fill Word(Current) 0(Idle-Idle) AL_PA Offset 13: OFF Trunk Port ON Long Distance LS VC Link Init OFF Desired Distance 32 Km Reserved Buffers 70 Locked L_Port OFF Locked G_Port OFF Disabled E_Port OFF Locked E_Port OFF ISL R_RDY Mode OFF RSCN Suppressed OFF Persistent Disable OFF LOS TOV enable OFF NPIV capability ON QOS E_Port OFF Port Auto Disable: OFF Rate Limit OFF EX Port OFF Mirror Port OFF Credit Recovery ON F_Port Buffers OFF Fault Delay: 0(R_A_TOV) NPIV PP Limit: 126 CSCTL mode: OFF Forcing the links to 2GbFC produces no errors, but we bought 4GbFC and we want 4GbFC. I don't know where to look anymore. Any ideas what to try next or how to proceed? If we can't make 4GbFC work reliably I wonder what the people working with 8 or 16 do... I don't assume that "a few errors here and there" are acceptable. Oh and BTW we are in contact with everyone of the manufacturers (FC switch, MUX, SFPs, ...) Except for the SFPs to be changed (some have been changed before) nobody has a clue. Brocade SAN Health says the fabric is ok. MUX, well, it's passive, it's only a prism, nature at it's best. Any shots in the dark? APPENDIX: Answers to your questions @Chopper3: This is the second generation of Brocades exhibiting the problem. Before we had 5000s, now we have 5100s. In the beginning when we still had the active MUX we rented a longdistance laser once to put it into the switch directly in order to make tests for a day, during that day of course it was clean. But as I said, sometimes it's clean just like that. And sometimes it's not. Alternative switches would mean to rebuild the entire SAN with those only to test. Alternative SFPs, well they're hard to come by just like that. @longneck: The line is rented. It's a dark fibre (9um monomode) so there's noone else on it. Sure there are splices. I can't go and look but I have to trust they have been done correctly. As I said the line has been checked and rechecked (using an optical time-domain reflectometer). Obviously you don't have all this equipment yourself because it's way too expensive. @mdpc: What would be the "wrong" type of cable according to you? Up to the switch everything is monomode, yes. The connectors are the correct ones too. Yeah I know there are the green ones where the fibre is cut off at a certain angle etc. But we have the correct ones for all that I know. Progress Report #1 We have had two fabrics (=2x2 switches) with Brocade 5100s with FabricOS 6.4.1 and two fabrics (another 2x4 switches) on FabricOS 7.0.2. On the longdistance ISLs (one in each fabric) it turned out that with FOS 6.4.1 setting it to long distance issues warnings about the VC Init setting and consequently the fill word. But those are only warnings. FOS 7.0.2 requires you to do modifications to VCI and the fillword for long distance links. Setting FOS 6.4.1 to the LS (long-distance static distance) setting with wrong VCI and fillword setting made the whole fabric inoperational (stuck in an SCN loop, use fabriclog -s to see, you don't see it anywhere else, no port error counters or anything increasing). Currently I'm giving the one fabric with the IMHO more correct settings a beating and it seems to do fine, whereas the other one without much traffic still has errors here and there. In short: We have eliminated the active part of the MUX (the FC retimer). We are putting the long distance SFPs into the end equipment themselves. Just to be sure we bought new monomode cables to connect the end equipment to the remaining passive part of the MUX. We are now trying out several long distance configs. It's almost black magic. Everything that happens is mostly empirical, noone seems to have a clue what are the exact reasons to do something. ("We have tried this, and it didn't work, then we tried that and it worked, so we stuck with that." But noone really seems to know why.) I'll keep you updated. Progress Report #2 We got the new lasers for one of the fabrics on warranty. It's ultra clean even on 4GbFC. They're transmitting with roughly 2mW (3dBm) whereas the others are only at 1.5mW (1.5dBm) although that should really be enough. The other fabric (where the lasers are apparently ok) still produces one or two CRCs infrequently. Using sfpshow the SFP producing the actual RX errors shows Status/Ctrl: 0x82 Alarm flags[0,1] = 0x5, 0x40 Warn Flags[0,1] = 0x5, 0x40 Now I'll have to find out what that means. Not sure if it was there before. Well I'll first clear my head with a week of vacation. 8-)

Read the article

Permissions denied on apache rewrite module virtual host configuration

- by sina

All of a sudden I keep getting "Permissions denied" on apache 2 virtualhost once we moved it to its own conf file. I have tried all the suggestions I have found here but none work. Please can someone tell me what I am doing wrong? Thanks! <VirtualHost *:80> DocumentRoot "/var/www/mm" <Directory "/var/www/mm"> Options +Indexes +MultiViews +FollowSymLinks AllowOverride all Order deny,allow Allow from all AddType text/vnd.sun.j2me.app-descriptor .jad AddType application/vnd.rim.cod .cod </Directory> Alias /holdspace "/var/www/mm/holdspace" RewriteLogLevel 9 RewriteLog "/var/log/httpd/rewrite.log" RewriteEngine on # 91xx RewriteCond %{HTTP_USER_AGENT} BlackBerry.9105 RewriteRule ^/download/(.*) /holdspace/bb6-360x480/$1 [L] # 92xx RewriteCond %{HTTP_USER_AGENT} BlackBerry.9220 RewriteRule ^/download/(.*) /holdspace/bb5-320x240/$1 [L] Errors in error.log: [Wed May 28 12:44:58 2014] [error] [client 197.255.173.95] (13)Permission denied: access to /download/eazymoney.jad denied [Wed May 28 12:44:58 2014] [error] [client 197.255.173.95] (13)Permission denied: access to /error/HTTP_FORBIDDEN.html.var denied [Wed May 28 12:44:59 2014] [error] [client 197.255.173.95] (13)Permission denied: access to /favicon.ico denied [Wed May 28 12:44:59 2014] [error] [client 197.255.173.95] (13)Permission denied: access to /error/HTTP_FORBIDDEN.html.var denied [Wed May 28 12:44:59 2014] [error] [client 197.255.173.95] (13)Permission denied: access to /favicon.ico denied [Wed May 28 12:44:59 2014] [error] [client 197.255.173.95] (13)Permission denied: access to /error/HTTP_FORBIDDEN.html.var denied Errors in rewrite.log: 197.255.173.95 - - [28/May/2014:12:46:01 +0100] [41.203.113.103/sid#7fe41704ca28][rid#7fe417123378/initial/redir#1] (3) applying pattern '^/download/(.*)' to uri '/error/HTTP_FORBIDDEN.html.var' 197.255.173.95 - - [28/May/2014:12:46:01 +0100] [41.203.113.103/sid#7fe41704ca28][rid#7fe417123378/initial/redir#1] (3) applying pattern '^/download/(.*)' to uri '/error/HTTP_FORBIDDEN.html.var' Apache Configuration file: ServerTokens Prod ServerRoot "/etc/httpd" PidFile run/httpd.pid Timeout 60 KeepAlive Off MaxKeepAliveRequests 100 KeepAliveTimeout 15 <IfModule prefork.c> StartServers 8 MinSpareServers 5 MaxSpareServers 20 ServerLimit 256 MaxClients 256 MaxRequestsPerChild 4000 </IfModule> <IfModule worker.c> StartServers 4 MaxClients 300 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 25 MaxRequestsPerChild 0 </IfModule> Listen 80 LoadModule auth_basic_module modules/mod_auth_basic.so LoadModule auth_digest_module modules/mod_auth_digest.so LoadModule authn_file_module modules/mod_authn_file.so LoadModule authn_alias_module modules/mod_authn_alias.so LoadModule authn_anon_module modules/mod_authn_anon.so LoadModule authn_dbm_module modules/mod_authn_dbm.so LoadModule authn_default_module modules/mod_authn_default.so LoadModule authz_host_module modules/mod_authz_host.so LoadModule authz_user_module modules/mod_authz_user.so LoadModule authz_owner_module modules/mod_authz_owner.so LoadModule authz_groupfile_module modules/mod_authz_groupfile.so LoadModule authz_dbm_module modules/mod_authz_dbm.so LoadModule authz_default_module modules/mod_authz_default.so LoadModule ldap_module modules/mod_ldap.so LoadModule authnz_ldap_module modules/mod_authnz_ldap.so LoadModule include_module modules/mod_include.so LoadModule log_config_module modules/mod_log_config.so LoadModule logio_module modules/mod_logio.so LoadModule env_module modules/mod_env.so LoadModule ext_filter_module modules/mod_ext_filter.so LoadModule mime_magic_module modules/mod_mime_magic.so LoadModule expires_module modules/mod_expires.so LoadModule deflate_module modules/mod_deflate.so LoadModule headers_module modules/mod_headers.so LoadModule usertrack_module modules/mod_usertrack.so LoadModule setenvif_module modules/mod_setenvif.so LoadModule mime_module modules/mod_mime.so LoadModule dav_module modules/mod_dav.so LoadModule status_module modules/mod_status.so LoadModule autoindex_module modules/mod_autoindex.so LoadModule info_module modules/mod_info.so LoadModule dav_fs_module modules/mod_dav_fs.so LoadModule vhost_alias_module modules/mod_vhost_alias.so LoadModule negotiation_module modules/mod_negotiation.so LoadModule dir_module modules/mod_dir.so LoadModule actions_module modules/mod_actions.so LoadModule speling_module modules/mod_speling.so LoadModule userdir_module modules/mod_userdir.so LoadModule alias_module modules/mod_alias.so LoadModule substitute_module modules/mod_substitute.so LoadModule rewrite_module modules/mod_rewrite.so LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_ftp_module modules/mod_proxy_ftp.so LoadModule proxy_http_module modules/mod_proxy_http.so LoadModule proxy_ajp_module modules/mod_proxy_ajp.so LoadModule proxy_connect_module modules/mod_proxy_connect.so LoadModule cache_module modules/mod_cache.so LoadModule suexec_module modules/mod_suexec.so LoadModule disk_cache_module modules/mod_disk_cache.so LoadModule cgi_module modules/mod_cgi.so LoadModule version_module modules/mod_version.so Include conf.d/*.conf User apache Group apache ServerAdmin root@localhost ServerName sv001zma002.africa.int.myorg.com UseCanonicalName Off DocumentRoot "/var/www/html" <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory "/var/www/html"> Options FollowSymLinks AllowOverride None Order allow,deny Allow from all </Directory> <IfModule mod_userdir.c> UserDir disabled </IfModule> DirectoryIndex index.html index.html.var AccessFileName .htaccess <Files ~ "^\.ht"> Order allow,deny Deny from all Satisfy All </Files> TypesConfig /etc/mime.types DefaultType text/plain <IfModule mod_mime_magic.c> MIMEMagicFile conf/magic </IfModule> HostnameLookups Off ErrorLog logs/error_log LogLevel warn LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%h %l %u %t \"%r\" %>s %b" common LogFormat "%{Referer}i -> %U" referer LogFormat "%{User-agent}i" agent CustomLog logs/access_log combined ServerSignature Off TraceEnable Off Alias /icons/ "/var/www/icons/" <Directory "/var/www/icons"> Options MultiViews FollowSymLinks AllowOverride None Order allow,deny Allow from all </Directory> <IfModule mod_dav_fs.c> DAVLockDB /var/lib/dav/lockdb </IfModule> ScriptAlias /cgi-bin/ "/var/www/cgi-bin/" <Directory "/var/www/cgi-bin"> AllowOverride None Options None Order allow,deny Allow from all </Directory> IndexOptions FancyIndexing VersionSort NameWidth=* HTMLTable Charset=UTF-8 AddIconByEncoding (CMP,/icons/compressed.gif) x-compress x-gzip AddIconByType (TXT,/icons/text.gif) text/* AddIconByType (IMG,/icons/image2.gif) image/* AddIconByType (SND,/icons/sound2.gif) audio/* AddIconByType (VID,/icons/movie.gif) video/* AddIcon /icons/binary.gif .bin .exe AddIcon /icons/binhex.gif .hqx AddIcon /icons/tar.gif .tar AddIcon /icons/world2.gif .wrl .wrl.gz .vrml .vrm .iv AddIcon /icons/compressed.gif .Z .z .tgz .gz .zip AddIcon /icons/a.gif .ps .ai .eps AddIcon /icons/layout.gif .html .shtml .htm .pdf AddIcon /icons/text.gif .txt AddIcon /icons/c.gif .c AddIcon /icons/p.gif .pl .py AddIcon /icons/f.gif .for AddIcon /icons/dvi.gif .dvi AddIcon /icons/uuencoded.gif .uu AddIcon /icons/script.gif .conf .sh .shar .csh .ksh .tcl AddIcon /icons/tex.gif .tex AddIcon /icons/bomb.gif core AddIcon /icons/back.gif .. AddIcon /icons/hand.right.gif README AddIcon /icons/folder.gif ^^DIRECTORY^^ AddIcon /icons/blank.gif ^^BLANKICON^^ DefaultIcon /icons/unknown.gif ReadmeName README.html HeaderName HEADER.html IndexIgnore .??* *~ *# HEADER* README* RCS CVS *,v *,t AddLanguage ca .ca AddLanguage cs .cz .cs AddLanguage da .dk AddLanguage de .de AddLanguage el .el AddLanguage en .en AddLanguage eo .eo AddLanguage es .es AddLanguage et .et AddLanguage fr .fr AddLanguage he .he AddLanguage hr .hr AddLanguage it .it AddLanguage ja .ja AddLanguage ko .ko AddLanguage ltz .ltz AddLanguage nl .nl AddLanguage nn .nn AddLanguage no .no AddLanguage pl .po AddLanguage pt .pt AddLanguage pt-BR .pt-br AddLanguage ru .ru AddLanguage sv .sv AddLanguage zh-CN .zh-cn AddLanguage zh-TW .zh-tw LanguagePriority en ca cs da de el eo es et fr he hr it ja ko ltz nl nn no pl pt pt-BR ru sv zh-CN zh-TW ForceLanguagePriority Prefer Fallback AddDefaultCharset UTF-8 AddType application/x-compress .Z AddType application/x-gzip .gz .tgz AddType application/x-x509-ca-cert .crt AddType application/x-pkcs7-crl .crl AddHandler type-map var AddType text/html .shtml AddOutputFilter INCLUDES .shtml ProxyErrorOverride On Alias /error/ "/var/www/error/" <IfModule mod_negotiation.c> <IfModule mod_include.c> <Directory "/var/www/error"> AllowOverride None Options IncludesNoExec AddOutputFilter Includes html AddHandler type-map var Order allow,deny Allow from all LanguagePriority en es de fr ForceLanguagePriority Prefer Fallback </Directory> ErrorDocument 400 /error/HTTP_BAD_REQUEST.html.var ErrorDocument 401 /error/HTTP_UNAUTHORIZED.html.var ErrorDocument 403 /error/HTTP_FORBIDDEN.html.var ErrorDocument 404 /error/HTTP_NOT_FOUND.html.var </IfModule> </IfModule> BrowserMatch "Mozilla/2" nokeepalive BrowserMatch "MSIE 4\.0b2;" nokeepalive downgrade-1.0 force-response-1.0 BrowserMatch "RealPlayer 4\.0" force-response-1.0 BrowserMatch "Java/1\.0" force-response-1.0 BrowserMatch "JDK/1\.0" force-response-1.0 BrowserMatch "Microsoft Data Access Internet Publishing Provider" redirect-carefully BrowserMatch "MS FrontPage" redirect-carefully BrowserMatch "^WebDrive" redirect-carefully BrowserMatch "^WebDAVFS/1.[0123]" redirect-carefully BrowserMatch "^gnome-vfs/1.0" redirect-carefully BrowserMatch "^XML Spy" redirect-carefully BrowserMatch "^Dreamweaver-WebDAV-SCM1" redirect-carefully ErrorDocument 400 "Bad Request"

Read the article

Is there a better way to avoid an infinite loop using winforms?

- by Hamish Grubijan

I am using .Net 3.5 for now. Right now I am using a using trick to disable and enable events around certain sections of code. The user can change either days, hours, minutes or total minutes, and that should not cause an infinite cascade of events (e.g. minutes changing total, total changing minutes, etc.) While the code does what I want, there might be a better / more straight-forward way. Do you know of any? For brawny points: This control will be used by multiple teams - I do not want to make it embarrassing. I suspect that I do not need to reinvent the wheel when defining hours in a day, days in week, etc. Some other standard .Net library out there must have it. Any other remarks regarding code? This using (EventHacker.DisableEvents(this)) business - that must be a common pattern in .Net ... changing the setting temporarily. What is the name of it? I'd like to be able to refer to it in a comment and also read up more on current implementations. In the general case not only a handle to the thing being changed needs to be remembered, but also the previous state (in this case previous state does not matter - events are turned on and off unconditionally). Then there is also a possibility of multi-threaded hacking. One could also utilize generics to make the code arguably cleaner. Figuring all this out can lead to a multi-page blog post. I'd be happy to hear some of the answers. P.S. Does it seem like I suffer from obsessive compulsive disorder? Some people like to get things finished and move on; I like to keep them open ... there is always a better way. // Corresponding Designer class is omitted. using System; using System.Windows.Forms; namespace XYZ // Real name masked { interface IEventHackable { void EnableEvents(); void DisableEvents(); } public partial class PollingIntervalGroupBox : GroupBox, IEventHackable { private const int DAYS_IN_WEEK = 7; private const int MINUTES_IN_HOUR = 60; private const int HOURS_IN_DAY = 24; private const int MINUTES_IN_DAY = MINUTES_IN_HOUR * HOURS_IN_DAY; private const int MAX_TOTAL_DAYS = 100; private static readonly decimal MIN_TOTAL_NUM_MINUTES = 1; // Anything faster than once per minute can bog down our servers. private static readonly decimal MAX_TOTAL_NUM_MINUTES = (MAX_TOTAL_DAYS * MINUTES_IN_DAY) - 1; // 99 days should be plenty. // The value above was chosen so to not cause an overflow exception. // Watch out for it - numericUpDownControls each have a MaximumValue setting. public PollingIntervalGroupBox() { InitializeComponent(); InitializeComponentCustom(); } private void InitializeComponentCustom() { this.m_upDownDays.Maximum = MAX_TOTAL_DAYS - 1; this.m_upDownHours.Maximum = HOURS_IN_DAY - 1; this.m_upDownMinutes.Maximum = MINUTES_IN_HOUR - 1; this.m_upDownTotalMinutes.Maximum = MAX_TOTAL_NUM_MINUTES; this.m_upDownTotalMinutes.Minimum = MIN_TOTAL_NUM_MINUTES; } private void m_upDownTotalMinutes_ValueChanged(object sender, EventArgs e) { setTotalMinutes(this.m_upDownTotalMinutes.Value); } private void m_upDownDays_ValueChanged(object sender, EventArgs e) { updateTotalMinutes(); } private void m_upDownHours_ValueChanged(object sender, EventArgs e) { updateTotalMinutes(); } private void m_upDownMinutes_ValueChanged(object sender, EventArgs e) { updateTotalMinutes(); } private void updateTotalMinutes() { this.setTotalMinutes( MINUTES_IN_DAY * m_upDownDays.Value + MINUTES_IN_HOUR * m_upDownHours.Value + m_upDownMinutes.Value); } public decimal TotalMinutes { get { return m_upDownTotalMinutes.Value; } set { m_upDownTotalMinutes.Value = value; } } public decimal TotalHours { set { setTotalMinutes(value * MINUTES_IN_HOUR); } } public decimal TotalDays { set { setTotalMinutes(value * MINUTES_IN_DAY); } } public decimal TotalWeeks { set { setTotalMinutes(value * DAYS_IN_WEEK * MINUTES_IN_DAY); } } private void setTotalMinutes(decimal nTotalMinutes) { if (nTotalMinutes < MIN_TOTAL_NUM_MINUTES) { setTotalMinutes(MIN_TOTAL_NUM_MINUTES); return; // Must be carefull with recursion. } if (nTotalMinutes > MAX_TOTAL_NUM_MINUTES) { setTotalMinutes(MAX_TOTAL_NUM_MINUTES); return; // Must be carefull with recursion. } using (EventHacker.DisableEvents(this)) { // First set the total minutes this.m_upDownTotalMinutes.Value = nTotalMinutes; // Then set the rest this.m_upDownDays.Value = (int)(nTotalMinutes / MINUTES_IN_DAY); nTotalMinutes = nTotalMinutes % MINUTES_IN_DAY; // variable reuse. this.m_upDownHours.Value = (int)(nTotalMinutes / MINUTES_IN_HOUR); nTotalMinutes = nTotalMinutes % MINUTES_IN_HOUR; this.m_upDownMinutes.Value = nTotalMinutes; } } // Event magic public void EnableEvents() { this.m_upDownTotalMinutes.ValueChanged += this.m_upDownTotalMinutes_ValueChanged; this.m_upDownDays.ValueChanged += this.m_upDownDays_ValueChanged; this.m_upDownHours.ValueChanged += this.m_upDownHours_ValueChanged; this.m_upDownMinutes.ValueChanged += this.m_upDownMinutes_ValueChanged; } public void DisableEvents() { this.m_upDownTotalMinutes.ValueChanged -= this.m_upDownTotalMinutes_ValueChanged; this.m_upDownDays.ValueChanged -= this.m_upDownDays_ValueChanged; this.m_upDownHours.ValueChanged -= this.m_upDownHours_ValueChanged; this.m_upDownMinutes.ValueChanged -= this.m_upDownMinutes_ValueChanged; } // We give as little info as possible to the 'hacker'. private sealed class EventHacker : IDisposable { IEventHackable _hackableHandle; public static IDisposable DisableEvents(IEventHackable hackableHandle) { return new EventHacker(hackableHandle); } public EventHacker(IEventHackable hackableHandle) { this._hackableHandle = hackableHandle; this._hackableHandle.DisableEvents(); } public void Dispose() { this._hackableHandle.EnableEvents(); } } } }

Read the article

How should I delete a child object from within a parent's slot? Possibly boost::asio specific.

- by kaliatech

I have written a network server class that maintains a std::set of network clients. The network clients emit a signal to the network server on disconnect (via boost::bind). When a network client disconnects, the client instance needs to be removed from the Set and eventually deleted. I would think this is a common pattern, but I am having problems that might, or might not, be specific to ASIO. I've tried to trim down to just the relevant code: /** NetworkServer.hpp **/ class NetworkServices : private boost::noncopyable { public: NetworkServices(void); ~NetworkServices(void); private: void run(); void onNetworkClientEvent(NetworkClientEvent&); private: std::set<boost::shared_ptr<const NetworkClient>> clients; }; /** NetworkClient.cpp **/ void NetworkServices::run() { running = true; boost::asio::io_service::work work(io_service); //keeps service running even if no operations // This creates just one thread for the boost::asio async network services boost::thread iot(boost::bind(&NetworkServices::run_io_service, this)); while (running) { boost::system::error_code err; try { tcp::socket* socket = new tcp::socket(io_service); acceptor->accept(*socket, err); if (!err) { NetworkClient* networkClient = new NetworkClient(io_service, boost::shared_ptr<tcp::socket>(socket)); networkClient->networkClientEventSignal.connect(boost::bind(&NetworkServices::onNetworkClientEvent, this, _1)); clients.insert(boost::shared_ptr<NetworkClient>(networkClient)); networkClient->init(); //kicks off 1st asynch_read call } } // etc... } } void NetworkServices::onNetworkClientEvent(NetworkClientEvent& evt) { switch(evt.getType()) { case NetworkClientEvent::CLIENT_ERROR : { boost::shared_ptr<const NetworkClient> clientPtr = evt.getClient().getSharedPtr(); // ------ THIS IS THE MAGIC LINE ----- // If I keep this, the io_service hangs. If I comment it out, // everything works fine (but I never delete the disconnected NetworkClient). // If actually deleted the client here I might expect problems because it is the caller // of this method via boost::signal and bind. However, The clientPtr is a shared ptr, and a // reference is being kept in the client itself while signaling, so // I would the object is not going to be deleted from the heap here. That seems to be the case. // Never-the-less, this line makes all the difference, most likely because it controls whether or not the NetworkClient ever gets deleted. clients.erase(clientPtr); //I should probably put this socket clean-up in NetworkClient destructor. Regardless by doing this, // I would expect the ASIO socket stuff to be adequately cleaned-up after this. tcp::socket& socket = clientPtr->getSocket(); try { socket.shutdown(boost::asio::socket_base::shutdown_both); socket.close(); } catch(...) { CommServerContext::error("Error while shutting down and closing socket."); } break; } default : { break; } } } /** NetworkClient.hpp **/ class NetworkClient : public boost::enable_shared_from_this<NetworkClient>, Client { NetworkClient(boost::asio::io_service& io_service, boost::shared_ptr<tcp::socket> socket); virtual ~NetworkClient(void); inline boost::shared_ptr<const NetworkClient> getSharedPtr() const { return shared_from_this(); }; boost::signal <void (NetworkClientEvent&)> networkClientEventSignal; void onAsyncReadHeader(const boost::system::error_code& error, size_t bytes_transferred); }; /** NetworkClient.cpp - onAsyncReadHeader method called from io_service.run() thread as result of an async_read operation. Error condition usually result of an unexpected client disconnect.**/ void NetworkClient::onAsyncReadHeader( const boost::system::error_code& error, size_t bytes_transferred) { if (error) { //Make sure this instance doesn't get deleted from parent/slot deferencing //Alternatively, somehow schedule for future delete? boost::shared_ptr<const NetworkClient> clientPtr = getSharedPtr(); //Signal to service that this client is disconnecting NetworkClientEvent evt(*this, NetworkClientEvent::CLIENT_ERROR); networkClientEventSignal(evt); networkClientEventSignal.disconnect_all_slots(); return; } I believe it's not safe to delete the client from within the slot handler because the function return would be ... undefined? (Interestingly, it doesn't seem to blow up on me though.) So I've used boost:shared_ptr along with shared_from_this to make sure the client doesn't get deleted until all slots have been signaled. It doesn't seem to really matter though. I believe this question is not specific to ASIO, but the problem manifests in a peculiar way when using ASIO. I have one thread executing io_service.run(). All ASIO read/write operations are performed asynchronously. Everything works fine with multiple clients connecting/disconnecting UNLESS I delete my client object from the Set per the code above. If I delete my client object, the io_service seemingly deadlocks internally and no further asynchronous operations are performed unless I start another thread. I have try/catches around the io_service.run() call and have not been able to detect any errors. Questions: Are there best practices for deleting child objects, that are also signal emitters, from within parent slots? Any ideas as to why the io_service is hanging when I delete my network client object?

Read the article

mdadm: Win7-install created a boot partition on one of my RAID6 drives. How to rebuild?

- by EXIT_FAILURE

My problem happened when I attempted to install Windows 7 on it's own SSD. The Linux OS I used which has knowledge of the software RAID system is on a SSD that I disconnected prior to the install. This was so that windows (or I) wouldn't inadvertently mess it up. However, and in retrospect, foolishly, I left the RAID disks connected, thinking that windows wouldn't be so ridiculous as to mess with a HDD that it sees as just unallocated space. Boy was I wrong! After copying over the installation files to the SSD (as expected and desired), it also created an ntfs partition on one of the RAID disks. Both unexpected and totally undesired! . I changed out the SSDs again, and booted up in linux. mdadm didn't seem to have any problem assembling the array as before, but if I tried to mount the array, I got the error message: mount: wrong fs type, bad option, bad superblock on /dev/md0, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so dmesg: EXT4-fs (md0): ext4_check_descriptors: Block bitmap for group 0 not in group (block 1318081259)! EXT4-fs (md0): group descriptors corrupted! I then used qparted to delete the newly created ntfs partition on /dev/sdd so that it matched the other three /dev/sd{b,c,e}, and requested a resync of my array with echo repair > /sys/block/md0/md/sync_action This took around 4 hours, and upon completion, dmesg reports: md: md0: requested-resync done. A bit brief after a 4-hour task, though I'm unsure as to where other log files exist (I also seem to have messed up my sendmail configuration). In any case: No change reported according to mdadm, everything checks out. mdadm -D /dev/md0 still reports: Version : 1.2 Creation Time : Wed May 23 22:18:45 2012 Raid Level : raid6 Array Size : 3907026848 (3726.03 GiB 4000.80 GB) Used Dev Size : 1953513424 (1863.02 GiB 2000.40 GB) Raid Devices : 4 Total Devices : 4 Persistence : Superblock is persistent Update Time : Mon May 26 12:41:58 2014 State : clean Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0 Layout : left-symmetric Chunk Size : 4K Name : okamilinkun:0 UUID : 0c97ebf3:098864d8:126f44e3:e4337102 Events : 423 Number Major Minor RaidDevice State 0 8 16 0 active sync /dev/sdb 1 8 32 1 active sync /dev/sdc 2 8 48 2 active sync /dev/sdd 3 8 64 3 active sync /dev/sde Trying to mount it still reports: mount: wrong fs type, bad option, bad superblock on /dev/md0, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so and dmesg: EXT4-fs (md0): ext4_check_descriptors: Block bitmap for group 0 not in group (block 1318081259)! EXT4-fs (md0): group descriptors corrupted! I'm a bit unsure where to proceed from here, and trying stuff "to see if it works" is a bit too risky for me. This is what I suggest I should attempt to do: Tell mdadm that /dev/sdd (the one that windows wrote into) isn't reliable anymore, pretend it is newly re-introduced to the array, and reconstruct its content based on the other three drives. I also could be totally wrong in my assumptions, that the creation of the ntfs partition on /dev/sdd and subsequent deletion has changed something that cannot be fixed this way. My question: Help, what should I do? If I should do what I suggested , how do I do that? From reading documentation, etc, I would think maybe: mdadm --manage /dev/md0 --set-faulty /dev/sdd mdadm --manage /dev/md0 --remove /dev/sdd mdadm --manage /dev/md0 --re-add /dev/sdd However, the documentation examples suggest /dev/sdd1, which seems strange to me, as there is no partition there as far as linux is concerned, just unallocated space. Maybe these commands won't work without. Maybe it makes sense to mirror the partition table of one of the other raid devices that weren't touched, before --re-add. Something like: sfdisk -d /dev/sdb | sfdisk /dev/sdd Bonus question: Why would the Windows 7 installation do something so st...potentially dangerous? Update I went ahead and marked /dev/sdd as faulty, and removed it (not physically) from the array: # mdadm --manage /dev/md0 --set-faulty /dev/sdd # mdadm --manage /dev/md0 --remove /dev/sdd However, attempting to --re-add was disallowed: # mdadm --manage /dev/md0 --re-add /dev/sdd mdadm: --re-add for /dev/sdd to /dev/md0 is not possible --add, was fine. # mdadm --manage /dev/md0 --add /dev/sdd mdadm -D /dev/md0 now reports the state as clean, degraded, recovering, and /dev/sdd as spare rebuilding. /proc/mdstat shows the recovery progress: md0 : active raid6 sdd[4] sdc[1] sde[3] sdb[0] 3907026848 blocks super 1.2 level 6, 4k chunk, algorithm 2 [4/3] [UU_U] [>....................] recovery = 2.1% (42887780/1953513424) finish=348.7min speed=91297K/sec nmon also shows expected output: ¦sdb 0% 87.3 0.0| > |¦ ¦sdc 71% 109.1 0.0|RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR > |¦ ¦sdd 40% 0.0 87.3|WWWWWWWWWWWWWWWWWWWW > |¦ ¦sde 0% 87.3 0.0|> || It looks good so far. Crossing my fingers for another five+ hours :) Update 2 The recovery of /dev/sdd finished, with dmesg output: [44972.599552] md: md0: recovery done. [44972.682811] RAID conf printout: [44972.682815] --- level:6 rd:4 wd:4 [44972.682817] disk 0, o:1, dev:sdb [44972.682819] disk 1, o:1, dev:sdc [44972.682820] disk 2, o:1, dev:sdd [44972.682821] disk 3, o:1, dev:sde Attempting mount /dev/md0 reports: mount: wrong fs type, bad option, bad superblock on /dev/md0, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so And on dmesg: [44984.159908] EXT4-fs (md0): ext4_check_descriptors: Block bitmap for group 0 not in group (block 1318081259)! [44984.159912] EXT4-fs (md0): group descriptors corrupted! I'm not sure what do do now. Suggestions? Output of dumpe2fs /dev/md0: dumpe2fs 1.42.8 (20-Jun-2013) Filesystem volume name: Atlas Last mounted on: /mnt/atlas Filesystem UUID: e7bfb6a4-c907-4aa0-9b55-9528817bfd70 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize Filesystem flags: signed_directory_hash Default mount options: user_xattr acl Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 244195328 Block count: 976756712 Reserved block count: 48837835 Free blocks: 92000180 Free inodes: 243414877 First block: 0 Block size: 4096 Fragment size: 4096 Reserved GDT blocks: 791 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 8192 Inode blocks per group: 512 RAID stripe width: 2 Flex block group size: 16 Filesystem created: Thu May 24 07:22:41 2012 Last mount time: Sun May 25 23:44:38 2014 Last write time: Sun May 25 23:46:42 2014 Mount count: 341 Maximum mount count: -1 Last checked: Thu May 24 07:22:41 2012 Check interval: 0 (<none>) Lifetime writes: 4357 GB Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 Default directory hash: half_md4 Directory Hash Seed: e177a374-0b90-4eaa-b78f-d734aae13051 Journal backup: inode blocks dumpe2fs: Corrupt extent header while reading journal super block

Read the article

Dynamically register constructor methods in an AbstractFactory at compile time using C++ templates

- by Horacio

When implementing a MessageFactory class to instatiate Message objects I used something like: class MessageFactory { public: static Message *create(int type) { switch(type) { case PING_MSG: return new PingMessage(); case PONG_MSG: return new PongMessage(); .... } } This works ok but every time I add a new message I have to add a new XXX_MSG and modify the switch statement. After some research I found a way to dynamically update the MessageFactory at compile time so I can add as many messages as I want without need to modify the MessageFactory itself. This allows for cleaner and easier to maintain code as I do not need to modify three different places to add/remove message classes: #include <stdio.h> #include <stdlib.h> #include <string.h> #include <inttypes.h> class Message { protected: inline Message() {}; public: inline virtual ~Message() { } inline int getMessageType() const { return m_type; } virtual void say() = 0; protected: uint16_t m_type; }; template<int TYPE, typename IMPL> class MessageTmpl: public Message { enum { _MESSAGE_ID = TYPE }; public: static Message* Create() { return new IMPL(); } static const uint16_t MESSAGE_ID; // for registration protected: MessageTmpl() { m_type = MESSAGE_ID; } //use parameter to instanciate template }; typedef Message* (*t_pfFactory)(); class MessageFactory· { public: static uint16_t Register(uint16_t msgid, t_pfFactory factoryMethod) { printf("Registering constructor for msg id %d\n", msgid); m_List[msgid] = factoryMethod; return msgid; } static Message *Create(uint16_t msgid) { return m_List[msgid](); } static t_pfFactory m_List[65536]; }; template <int TYPE, typename IMPL> const uint16_t MessageTmpl<TYPE, IMPL >::MESSAGE_ID = MessageFactory::Register( MessageTmpl<TYPE, IMPL >::_MESSAGE_ID, &MessageTmpl<TYPE, IMPL >::Create); class PingMessage: public MessageTmpl < 10, PingMessage > {· public: PingMessage() {} virtual void say() { printf("Ping\n"); } }; class PongMessage: public MessageTmpl < 11, PongMessage > {· public: PongMessage() {} virtual void say() { printf("Pong\n"); } }; t_pfFactory MessageFactory::m_List[65536]; int main(int argc, char **argv) { Message *msg1; Message *msg2; msg1 = MessageFactory::Create(10); msg1->say(); msg2 = MessageFactory::Create(11); msg2->say(); delete msg1; delete msg2; return 0; } The template here does the magic by registering into the MessageFactory class, all new Message classes (e.g. PingMessage and PongMessage) that subclass from MessageTmpl. This works great and simplifies code maintenance but I still have some questions about this technique: Is this a known technique/pattern? what is the name? I want to search more info about it. I want to make the array for storing new constructors MessageFactory::m_List[65536] a std::map but doing so causes the program to segfault even before reaching main(). Creating an array of 65536 elements is overkill but I have not found a way to make this a dynamic container. For all message classes that are subclasses of MessageTmpl I have to implement the constructor. If not it won't register in the MessageFactory. For example commenting the constructor of the PongMessage: class PongMessage: public MessageTmpl < 11, PongMessage > { public: //PongMessage() {} /* HERE */ virtual void say() { printf("Pong\n"); } }; would result in the PongMessage class not being registered by the MessageFactory and the program would segfault in the MessageFactory::Create(11) line. The question is why the class won't register? Having to add the empty implementation of the 100+ messages I need feels inefficient and unnecessary.

Read the article

network routing between mac & virtual XP

- by Kevin

Hi - I have a max laptop running XP inside VirtualBox. The network is setup to be a "Bridged Adapter" so that the IPs for both the host & guest OS's are assigned by my wireless routed. My guest XP has Nortel VPN connecting to corporate lan. When this is connected, I want to allow my host Mac OS to access the corporate network. But I'm struggling. Without Nortel VPN running, I can change routing on the mac so all traffic is sent via the guest XP - this works. But once I activate the VPN, this no longer works. If I try to change the routing on mac to run through the IP address assigned to the Nortel adapter, I get a "Network is unreachable" error. Below is the output from ipconfig /all on the guest XP OS. I'm beginning to believe that what I want to do is not possible because of the way Nortel secure the VPN - but before I give up I thought I'd post the problem here. Thanks, Kevin z:\eclipseworkspace\RESMobileSuite\trunk>ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : zzzz-3177b42dd0 Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Unknown IP Routing Enabled. . . . . . . . : Yes WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : zzzz.zzz Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : AMD PCNET Family PCI Ethernet Adapter Physical Address. . . . . . . . . : 08-00-XX-XX-XX-XX Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : 192.168.1.3 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 192.168.1.1 Lease Obtained. . . . . . . . . . : 30 April 2010 12:22:02 Lease Expires . . . . . . . . . . : 01 May 2010 12:22:02 Ethernet adapter {8EB7A442-9683-45FB-A602-56110A4B3434}: Connection-specific DNS Suffix . : zzzz.zz Description . . . . . . . . . . . : Nortel IPSECSHM Adapter - Packet Scheduler Miniport Physical Address. . . . . . . . . : 44-45-YY-YY-YY-YY Dhcp Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : XXX.4.52.62 Subnet Mask . . . . . . . . . . . : 255.255.254.0 Default Gateway . . . . . . . . . : XXX.4.52.62 DNS Servers . . . . . . . . . . . : XXX.6.21.36 XXX.6.21.100

Read the article

JNI String Corruption

- by Chris Dennett

Hi everyone, I'm getting weird string corruption across JNI calls which is causing problems on the the Java side. Every so often, I'll get a corrupted string in the passed array, which sometimes has existing parts of the original non-corrupted string. The C++ code is supposed to set the first index of the array to the address, it's a nasty hack to get around method call limitations. Additionally, the application is multi-threaded. remoteaddress[0]: 10.1.1.2:49153 remoteaddress[0]: 10.1.4.2:49153 remoteaddress[0]: 10.1.6.2:49153 remoteaddress[0]: 10.1.2.2:49153 remoteaddress[0]: 10.1.9.2:49153 remoteaddress[0]: {garbage here} java.lang.NullPointerException at kokuks.KKSAddress.<init>(KKSAddress.java:139) at kokuks.KKSAddress.createAddress(KKSAddress.java:48) at kokuks.KKSSocket._recvFrom(KKSSocket.java:963) at kokuks.scheduler.RecvOperation$1.execute(RecvOperation.java:144) at kokuks.scheduler.RecvOperation$1.execute(RecvOperation.java:1) at kokuks.KKSEvent.run(KKSEvent.java:58) at kokuks.KokuKS.handleJNIEventExpiry(KokuKS.java:872) at kokuks.KokuKS.handleJNIEventExpiry_fjni(KokuKS.java:880) at kokuks.KokuKS.runSimulator_jni(Native Method) at kokuks.KokuKS$1.run(KokuKS.java:773) at java.lang.Thread.run(Thread.java:717) remoteaddress[0]: 10.1.7.2:49153 The null pointer exception comes from trying to use the corrupt string. In C++, the address prints to standard out normally, but doing this reduces the rate of errors, from what I can see. The C++ code (if it helps): /* * Class: kokuks_KKSSocket * Method: recvFrom_jni * Signature: (Ljava/lang/String;[Ljava/lang/String;Ljava/nio/ByteBuffer;IIJ)I */ JNIEXPORT jint JNICALL Java_kokuks_KKSSocket_recvFrom_1jni (JNIEnv *env, jobject obj, jstring sockpath, jobjectArray addrarr, jobject buf, jint position, jint limit, jlong flags) { if (addrarr && env->GetArrayLength(addrarr) > 0) { env->SetObjectArrayElement(addrarr, 0, NULL); } jboolean iscopy; const char* cstr = env->GetStringUTFChars(sockpath, &iscopy); std::string spath = std::string(cstr); env->ReleaseStringUTFChars(sockpath, cstr); // release me! if (KKS_DEBUG) { std::cout << "[kks-c~" << spath << "] " << __PRETTY_FUNCTION__ << std::endl; } ns3::Ptr<ns3::Socket> socket = ns3::Names::Find<ns3::Socket>(spath); if (!socket) { std::cout << "[kks-c~" << spath << "] " << __PRETTY_FUNCTION__ << " socket not found for path!!" << std::endl; return -1; // not found } if (!addrarr) { std::cout << "[kks-c~" << spath << "] " << __PRETTY_FUNCTION__ << " array to set sender is null" << std::endl; return -1; } jsize arrsize = env->GetArrayLength(addrarr); if (arrsize < 1) { std::cout << "[kks-c~" << spath << "] " << __PRETTY_FUNCTION__ << " array too small to set sender!" << std::endl; return -1; } uint8_t* bufaddr = (uint8_t*)env->GetDirectBufferAddress(buf); long bufcap = env->GetDirectBufferCapacity(buf); uint8_t* realbufaddr = bufaddr + position; uint32_t remaining = limit - position; if (KKS_DEBUG) { std::cout << "[kks-c~" << spath << "] " << __PRETTY_FUNCTION__ << " bufaddr: " << bufaddr << ", cap: " << bufcap << std::endl; } ns3::Address aaddr; uint32_t mflags = flags; int ret = socket->RecvFrom(realbufaddr, remaining, mflags, aaddr); if (ret > 0) { if (KKS_DEBUG) std::cout << "[kks-c~" << spath << "] " << __PRETTY_FUNCTION__ << " addr: " << aaddr << std::endl; ns3::InetSocketAddress insa = ns3::InetSocketAddress::ConvertFrom(aaddr); std::stringstream ss; insa.GetIpv4().Print(ss); ss << ":" << insa.GetPort() << std::ends; if (KKS_DEBUG) std::cout << "[kks-c~" << spath << "] " << __PRETTY_FUNCTION__ << " addr: " << ss.str() << std::endl; jsize index = 0; const char *cstr = ss.str().c_str(); jstring jaddr = env->NewStringUTF(cstr); if (jaddr == NULL) std::cout << "[kks-c~" << spath << "] " << __PRETTY_FUNCTION__ << " jaddr is null!!" << std::endl; //jaddr = (jstring)env->NewGlobalRef(jaddr); env->SetObjectArrayElement(addrarr, index, jaddr); //if (env->ExceptionOccurred()) { // env->ExceptionDescribe(); //} } jint jret = ret; return jret; } The Java code (if it helps): /** * Pass an array of size 1 into remote address, and this will be set with * the sender of the packet (hax). This emulates C++ references. * * @param remoteaddress * @param buf * @param flags * @return */ public int _recvFrom(final KKSAddress remoteaddress[], ByteBuffer buf, long flags) { if (!kks.isCurrentlyThreadSafe()) throw new RuntimeException( "Not currently thread safe for ns-3 functions!" ); //lock.lock(); try { if (!buf.isDirect()) return -6; // not direct!! final String[] remoteAddrStr = new String[1]; int ret = 0; ret = recvFrom_jni( path.toPortableString(), remoteAddrStr, buf, buf.position(), buf.limit(), flags ); if (ret > 0) { System.out.println("remoteaddress[0]: " + remoteAddrStr[0]); remoteaddress[0] = KKSAddress.createAddress(remoteAddrStr[0]); buf.position(buf.position() + ret); } return ret; } finally { errNo = _getErrNo(); //lock.unlock(); } } public int recvFrom(KKSAddress[] fromaddress, final ByteBuffer bytes, long flags, long timeoutMS) { if (KokuKS.DEBUG_MODE) printMessage("public synchronized int recvFrom(KKSAddress[] fromaddress, final ByteBuffer bytes, long flags, long timeoutMS)"); if (kks.isCurrentlyThreadSafe()) { return _recvFrom(fromaddress, bytes, flags); // avoid event } fromaddress[0] = null; RecvOperation ro = new RecvOperation( kks, this, flags, true, bytes, timeoutMS ); ro.start(); fromaddress[0] = ro.getFrom(); return ro.getRetCode(); }

Read the article

Designing an API with compile-time option to remove first parameter to most functions and use a glob

- by tomlogic

I'm trying to design a portable API in ANSI C89/ISO C90 to access a wireless networking device on a serial interface. The library will have multiple network layers, and various versions need to run on embedded devices as small as an 8-bit micro with 32K of code and 2K of data, on up to embedded devices with a megabyte or more of code and data. In most cases, the target processor will have a single network interface and I'll want to use a single global structure with all state information for that device. I don't want to pass a pointer to that structure through the network layers. In a few cases (e.g., device with more resources that needs to live on two networks) I will interface to multiple devices, each with their own global state, and will need to pass a pointer to that state (or an index to a state array) through the layers. I came up with two possible solutions, but neither one is particularly pretty. Keep in mind that the full driver will potentially be 20,000 lines or more, cover multiple files, and contain hundreds of functions. The first solution requires a macro that discards the first parameter for every function that needs to access the global state: // network.h typedef struct dev_t { int var; long othervar; char name[20]; } dev_t; #ifdef IF_MULTI #define foo_function( x, a, b, c) _foo_function( x, a, b, c) #define bar_function( x) _bar_function( x) #else extern dev_t DEV; #define IFACE (&DEV) #define foo_function( x, a, b, c) _foo_function( a, b, c) #define bar_function( x) _bar_function( ) #endif int bar_function( dev_t *IFACE); int foo_function( dev_t *IFACE, int a, long b, char *c); // network.c #ifndef IF_MULTI dev_t DEV; #endif int bar_function( dev_t *IFACE) { memset( IFACE, 0, sizeof *IFACE); return 0; } int foo_function( dev_t *IFACE, int a, long b, char *c) { bar_function( IFACE); IFACE->var = a; IFACE->othervar = b; strcpy( IFACE->name, c); return 0; } The second solution defines macros to use in the function declarations: // network.h typedef struct dev_t { int var; long othervar; char name[20]; } dev_t; #ifdef IF_MULTI #define DEV_PARAM_ONLY dev_t *IFACE #define DEV_PARAM DEV_PARAM_ONLY, #else extern dev_t DEV; #define IFACE (&DEV) #define DEV_PARAM_ONLY void #define DEV_PARAM #endif int bar_function( DEV_PARAM_ONLY); // I don't like the missing comma between DEV_PARAM and arg2... int foo_function( DEV_PARAM int a, long b, char *c); // network.c #ifndef IF_MULTI dev_t DEV; #endif int bar_function( DEV_PARAM_ONLY) { memset( IFACE, 0, sizeof *IFACE); return 0; } int foo_function( DEV_PARAM int a, long b, char *c) { bar_function( IFACE); IFACE->var = a; IFACE->othervar = b; strcpy( IFACE->name, c); return 0; } The C code to access either method remains the same: // multi.c - example of multiple interfaces #define IF_MULTI #include "network.h" dev_t if0, if1; int main() { foo_function( &if0, -1, 3.1415926, "public"); foo_function( &if1, 42, 3.1415926, "private"); return 0; } // single.c - example of a single interface #include "network.h" int main() { foo_function( 11, 1.0, "network"); return 0; } Is there a cleaner method that I haven't figured out? I lean toward the second since it should be easier to maintain, and it's clearer that there's some macro magic in the parameters to the function. Also, the first method requires prefixing the function names with "_" when I want to use them as function pointers. I really do want to remove the parameter in the "single interface" case to eliminate unnecessary code to push the parameter onto the stack, and to allow the function to access the first "real" parameter in a register instead of loading it from the stack. And, if at all possible, I don't want to have to maintain two separate codebases. Thoughts? Ideas? Examples of something similar in existing code? (Note that using C++ isn't an option, since some of the planned targets don't have a C++ compiler available.)

Read the article

Help with understanding why UAC dialog pops up on Win7 for our application

- by Tim

We have a C++ unmanaged application that appears to cause a UAC prompt. It seems to happen on Win7 and NOT on Vista Unfortunately the UAC dlg is system modal so I can't attach a debugger to check in the code where it is, and running under msdev (we're using 2008) runs in elevated mode. We put a message box at the start of our program/winmain but it doesn't even get that far, so apparently this is in the startup code. What can cause a UAC notification so early and what other things can I do to track down the cause? EDIT Apparently the manifest is an important issue here, but it seems not to be helping me - or perhaps I am not configuring the manifest file correctly. Can someone provide a sample manifest? Also, does the linker/UAC magic figure out that the program "might" write to the registry and set its UAC requirements based on that? There are code paths that might trigger UAC, but we are not even at that point when the UAC dlg comes up. An additional oddity is that this does not seem to happen on Vista with UAC turned on. Here is a manifest (that I think is/was generated automatically): <?xml version='1.0' encoding='UTF-8' standalone='yes'?> <assembly xmlns='urn:schemas-microsoft-com:asm.v1' manifestVersion='1.0'> <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3"> <security> <requestedPrivileges> <requestedExecutionLevel level='asInvoker' uiAccess='false' /> </requestedPrivileges> </security> </trustInfo> <dependency> <dependentAssembly> <assemblyIdentity type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*' /> </dependentAssembly> </dependency> <dependency> <dependentAssembly> <assemblyIdentity type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='x86' publicKeyToken='6595b64144ccf1df' language='*' /> </dependentAssembly> </dependency> </assembly> And then this one was added to the manifest list to see if it would help <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"> <assemblyIdentity version="1.0.0.0" processorArchitecture="x86" name="[removed for anonymity]" type="win32" /> <description> [removed for anonymity] </description> <dependency> <dependentAssembly> <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="x86" publicKeyToken="6595b64144ccf1df" language="*" /> </dependentAssembly> </dependency> <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2"> <security> <requestedPrivileges> <requestedExecutionLevel level="asInvoker" uiAccess="false"/> </requestedPrivileges> </security> </trustInfo> </assembly> The following is from the actual EXE using the ManifestViewer tool - <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"> <assemblyIdentity version="1.0.0.0" processorArchitecture="x86" name="[removed]" type="win32" /> <description>[removed]</description> - <dependency> - <dependentAssembly> <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="x86" publicKeyToken="6595b64144ccf1df" language="*" /> </dependentAssembly> </dependency> - <dependency> - <dependentAssembly> <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="*" publicKeyToken="6595b64144ccf1df" language="*" /> </dependentAssembly> </dependency> - <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2"> - <security> - <requestedPrivileges> <requestedExecutionLevel level="asInvoker" uiAccess="false" /> </requestedPrivileges> </security> </trustInfo> </assembly> It appears that it might be due to the xp compatibility setting on our app. I'll have to test that. (we set that in the installer I found out because some sound drivers don't work correctly on win7)

Read the article

Wierd characters in exported csv files when converting

- by Ahue

Hey guys, I came across a problem I cannot solve on my own concerning the downloadable csv formatted trends data files from Google Insights for Search. I'm to lazy to reformat the files I4S gives me manually what means: Extracting the section with the actual trends data and reformatting the columns so that I can use it with a modelling program I do for school. So I wrote a tiny script the should do the work for me: Taking a file, do some magic and give me a new file in proper format. What it's supposed to do is reading the file contents, extracting the trends section, splitting it by newlines, splitting each line and then reorder the columns and maybe reformat them. When looking at a untouched I4S csv file it looks normal containing CR LF caracters at line breaks (maybe thats only because I'm using Windows). When just reading the contents and then writing them to a new file using the script wierd asian characters appear between CR and LF. I tried the script with a manually written similar looking file and even tried a csv file from Google Trends and it works fine. I use Python and the script (snippet) I used for the following example looks like this: # Read from an input file file = open(file,"r") contents = file.read() file.close() cfile = open("m.log","w+") cfile.write(contents) cfile.close() Has anybody an idea why those characters appear??? Thank you for you help! I'll give you and example: First few lines of I4S csv file: Web Search Interest: foobar Worldwide; 2004 - present Interest over time Week foobar 2004-01-04 - 2004-01-10 44 2004-01-11 - 2004-01-17 44 2004-01-18 - 2004-01-24 37 2004-01-25 - 2004-01-31 40 2004-02-01 - 2004-02-07 49 2004-02-08 - 2004-02-14 51 2004-02-15 - 2004-02-21 45 2004-02-22 - 2004-02-28 61 2004-02-29 - 2004-03-06 51 2004-03-07 - 2004-03-13 48 2004-03-14 - 2004-03-20 50 2004-03-21 - 2004-03-27 56 2004-03-28 - 2004-04-03 59 Output file when reading and writing contents: Web Search Interest: foobar ??????????? ? ? ? ????????? ????????? ???? ?????? Week foobar ?? ?? ?? ? ? ? ?? ??? ????? 2004-01-11 - 2004-01-17 44 ?? ?? ???? ? ? ?? ????????? 2004-01-25 - 2004-01-31 40 ?? ?? ?? ? ? ? ?? ?? ?????? 2004-02-08 - 2004-02-14 51 ?? ?? ???? ? ? ?? ????????? 2004-02-22 - 2004-02-28 61 ?? ?? ???? ? ? ?? ?? ?????? 2004-03-07 - 2004-03-13 48 ?? ?? ???? ? ? ?? ??? ?? ?? 2004-03-21 - 2004-03-27 56 ?? ?? ???? ? ? ?? ?? ?????? 2004-04-04 - 2004-04-10 69 ?? ?? ???? ? ? ?? ????????? 2004-04-18 - 2004-04-24 51 ?? ?? ???? ? ? ?? ?? ?????? 2004-05-02 - 2004-05-08 56 ?? ?? ?? ? ? ? ?? ????????? 2004-05-16 - 2004-05-22 54 ?? ?? ???? ? ? ?? ????????? 2004-05-30 - 2004-06-05 74 ?? ?? ?? ? ? ? ?? ????????? 2004-06-13 - 2004-06-19 50 ?? ?? ??? ? ? ?? ????????? 2004-06-27 - 2004-07-03 58 ?? ?? ?? ? ? ? ?? ??? ????? 2004-07-11 - 2004-07-17 59 ?? ?? ???? ? ? ?? ?????????

Read the article

Making WCF Output a single WSDL file for interop purposes.

- by Glav

By default, when WCF emits a WSDL definition for your services, it can often contain many links to others related schemas that need to be imported. For the most part, this is fine. WCF clients understand this type of schema without issue, and it conforms to the requisite standards as far as WSDL definitions go. However, some non Microsoft stacks will only work with a single WSDL file and require that all definitions for the service(s) (port types, messages, operation etc…) are contained within that single file. In other words, no external imports are supported. Some Java clients (to my working knowledge) have this limitation. This obviously presents a problem when trying to create services exposed for consumption and interop by these clients. Note: You can download the full source code for this sample from here To illustrate this point, lets say we have a simple service that looks like: Service Contract public interface IService1 { [OperationContract] [FaultContract(typeof(DataFault))] string GetData(DataModel1 model); [OperationContract] [FaultContract(typeof(DataFault))] string GetMoreData(DataModel2 model); } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Service Implementation/Behaviour public class Service1 : IService1 { public string GetData(DataModel1 model) { return string.Format("Some Field was: {0} and another field was {1}", model.SomeField,model.AnotherField); } public string GetMoreData(DataModel2 model) { return string.Format("Name: {0}, age: {1}", model.Name, model.Age); } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Configuration File <system.serviceModel> <services> <service name="SingleWSDL_WcfService.Service1" behaviorConfiguration="SingleWSDL_WcfService.Service1Behavior">  <endpoint address ="" binding="wsHttpBinding" contract="SingleWSDL_WcfService.IService1" > ....... </services> <behaviors> <serviceBehaviors> <behavior name="SingleWSDL_WcfService.Service1Behavior"> ........ </behavior> </serviceBehaviors> </behaviors> </system.serviceModel> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } When WCF is asked to produce a WSDL for this service, it will produce a file that looks something like this (note: some sections omitted for brevity): <?xml version="1.0" encoding="utf-8" ?> - <wsdl:definitions name="Service1" targetNamespace="http://tempuri.org/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" ...... namespace definitions omitted for brevity + <wsp:Policy wsu:Id="WSHttpBinding_IService1_policy"> ... multiple policy items omitted for brevity </wsp:Policy> - <wsdl:types> - <xsd:schema targetNamespace="http://tempuri.org/Imports"> <xsd:import schemaLocation="http://localhost:2370/HostingSite/Service-default.svc?xsd=xsd0" namespace="http://tempuri.org/" /> <xsd:import schemaLocation="http://localhost:2370/HostingSite/Service-default.svc?xsd=xsd3" namespace="Http://SingleWSDL/Fault" /> <xsd:import schemaLocation="http://localhost:2370/HostingSite/Service-default.svc?xsd=xsd1" namespace="http://schemas.microsoft.com/2003/10/Serialization/" /> <xsd:import schemaLocation="http://localhost:2370/HostingSite/Service-default.svc?xsd=xsd2" namespace="http://SingleWSDL/Model1" /> <xsd:import schemaLocation="http://localhost:2370/HostingSite/Service-default.svc?xsd=xsd4" namespace="http://SingleWSDL/Model2" /> </xsd:schema> </wsdl:types> + <wsdl:message name="IService1_GetData_InputMessage"> .... </wsdl:message> - <wsdl:operation name="GetData"> ..... </wsdl:operation> - <wsdl:service name="Service1"> ....... </wsdl:service> </wsdl:definitions> The above snippet from the WSDL shows the external links and references that are generated by WCF for a relatively simple service. Note the xsd:import statements that reference external XSD definitions which are also generated by WCF. In order to get WCF to produce a single WSDL file, we first need to follow some good practices when it comes to WCF service definitions. Step 1: Define a namespace for your service contract. [ServiceContract(Namespace="http://SingleWSDL/Service1")] public interface IService1 { ...... } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Normally you would not use a literal string and may instead define a constant to use in your own application for the namespace. When this is applied and we generate the WSDL, we get the following statement inserted into the document: <wsdl:import namespace="http://SingleWSDL/Service1" location="http://localhost:2370/HostingSite/Service-default.svc?wsdl=wsdl0" /> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } All the previous imports have gone. If we follow this link, we will see that the XSD imports are now in this external WSDL file. Not really any benefit for our purposes. Step 2: Define a namespace for your service behaviour [ServiceBehavior(Namespace = "http://SingleWSDL/Service1")] public class Service1 : IService1 { ...... } As you can see, the namespace of the service behaviour should be the same as the service contract interface to which it implements. Failure to do these tasks will cause WCF to emit its default http://tempuri.org namespace all over the place and cause WCF to still generate import statements. This is also true if the namespace of the contract and behaviour differ. If you define one and not the other, defaults kick in, and you’ll find extra imports generated. While each of the previous 2 steps wont cause any less import statements to be generated, you will notice that namespace definitions within the WSDL have identical, well defined names. Step 3: Define a binding namespace In the configuration file, modify the endpoint configuration line item to iunclude a bindingNamespace attribute which is the same as that defined on the service behaviour and service contract <endpoint address="" binding="wsHttpBinding" contract="SingleWSDL_WcfService.IService1" bindingNamespace="http://SingleWSDL/Service1"> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } However, this does not completely solve the issue. What this will do is remove the WSDL import statements like this one: <wsdl:import namespace="http://SingleWSDL/Service1" location="http://localhost:2370/HostingSite/Service-default.svc?wsdl" /> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } from the generated WSDL. Finally…. the magic…. Step 4: Use a custom endpoint behaviour to read in external imports and include in the main WSDL output. In order to force WCF to output a single WSDL with all the required definitions, we need to define a custom WSDL Export extension that can be applied to any endpoints. This requires implementing the IWsdlExportExtension and IEndpointBehavior interfaces and then reading in any imported schemas, and adding that output to the main, flattened WSDL to be output. Sounds like fun right…..? Hmmm well maybe not. This step sounds a little hairy, but its actually quite easy thanks to some kind individuals who have already done this for us. As far as I know, there are 2 available implementations that we can easily use to perform the import and “WSDL flattening”. WCFExtras which is on codeplex and FlatWsdl by Thinktecture. Both implementations actually do exactly the same thing with the imports and provide an endpoint behaviour, however FlatWsdl does a little more work for us by providing a ServiceHostFactory that we can use which automatically attaches the requisite behaviour to our endpoints for us. To use this in an IIS hosted service, we can modify the .SVC file to specify this ne factory to use like so: <%@ ServiceHost Language="C#" Debug="true" Service="SingleWSDL_WcfService.Service1" Factory="Thinktecture.ServiceModel.Extensions.Description.FlatWsdlServiceHostFactory" %> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Within a service application or another form of executable such as a console app, we can simply create an instance of the custom service host and open it as we normally would as shown here: FlatWsdlServiceHost host = new FlatWsdlServiceHost(typeof(Service1)); host.Open(); And we are done. WCF will now generate one single WSDL file that contains all he WSDL imports and data/XSD imports. You can download the full source code for this sample from here Hope this has helped you. Note: Please note that I have not extensively tested this in a number of different scenarios so no guarantees there.

Search Results

Search found 3315 results on 133 pages for 'magic packet'.

Page 130/133 | < Previous Page | 126 127 128 129 130 131 132 133 | Next Page >

- by TechTwaddle

- by Laurent Bugnion

- by Evan Carroll

- by The Prop

- by user365465

- by jao

- by twistedbrain

- by eComEvo

- by mekasperasky

- by acjohnson55

- by Aaronaught

- by allentown

- by Marki

- by sina

- by Hamish Grubijan

- by kaliatech

- by EXIT_FAILURE

- by Horacio

- by Kevin

- by Chris Dennett

- by tomlogic

- by Tim

- by Ahue

- by Glav

< Previous Page | 126 127 128 129 130 131 132 133 | Next Page >