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  • Namespace Orginization and Conventions

    - by Bob Dylan
    So I have a little bit of a problem. I working on a project in C# using The StackOveflow API. You can send it a request like so: http://stackoverflow.com/users/rep/126196/2010-01-01/2010-03-13 And get back something like this JSON response: [{"PostUrl":"1167342", "PostTitle":"Are ref and out in C# the same a pointers in C++?", "Rep":10}, {"PostUrl":"1290595", "PostTitle":"Where can I find a good tutorial on bubbling?", "Rep":10} ... So my problem is that I have some methods like GetJsonResponse() which return the above JSON and SaveTempFile() which saves that JSON response to a temporary file for later use. I not sure if I should create a class for them, or what namespace to put them under. Right now my current namespace hierarchy is like so: StackOverflow.Api.Json. So how should I organize these methods/classes/namespaces?

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  • gmaps4rails version 2 build method

    - by BrainLikeADullPencil
    I installed gmaps4rails for my Rails app, ran the generator, and required the two files like this in my application.js file, along with underscore.js //= require underscore //= require gmaps4rails/gmaps4rails.base //= require gmaps4rails/gmaps4rails.googlemaps adding, as instructed on github https://github.com/apneadiving/Google-Maps-for-Rails, these dependencies in layout.html.erb When I tried to create the demo map from the github page with this code, I got an error that the object doesn't have a build method. Uncaught TypeError: Object # has no method 'build' handler = Gmaps.build('Google'); handler.buildMap({ provider: {}, internal: {id: 'map'}}, function(){ markers = handler.addMarkers([ { "lat": 0, "lng": 0, "picture": { "url": "https://addons.cdn.mozilla.net/img/uploads/addon_icons/13/13028-64.png", "width": 36, "height": 36 }, "infowindow": "hello!" } ]); handler.bounds.extendWith(markers); handler.fitMapToBounds(); }); Indeed, when I look inside the base file that I require in the manifest file there is no build method for that object. How does one create a map in the new version for gmaps4rails?

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  • Silverlight with using of DependencyProperty and ControlTemplate

    - by Taras
    Hello everyone, I'm starting to study Silverlight 3 and Visual Studio 2008. I've been trying to create Windows sidebar gadget with button controls that look like circles (I have couple of "roundish" png images). The behavior, I want, is the following: when the mouse hovers over the image it gets larger a bit. When we click on it, then it goes down and up. When we leave the button's image it becomes normal sized again. Cause I'm going to have couple of such controls I decided to implement custom control: like a button but with image and no content text. My problem is that I'm not able to set my custom properties in my template and style. What am I doing wrong? My teamplate control with three additional properties: namespace SilverlightGadgetDocked { public class ActionButton : Button { /// <summary> /// Gets or sets the image source of the button. /// </summary> public String ImageSource { get { return (String)GetValue(ImageSourceProperty); } set { SetValue(ImageSourceProperty, value); } } /// <summary> /// Gets or sets the ratio that is applied to the button's size /// when the mouse control is over the control. /// </summary> public Double ActiveRatio { get { return (Double)GetValue(ActiveRatioProperty); } set { SetValue(ActiveRatioProperty, value); } } /// <summary> /// Gets or sets the offset - the amount of pixels the button /// is shifted when the the mouse control is over the control. /// </summary> public Double ActiveOffset { get { return (Double)GetValue(ActiveOffsetProperty); } set { SetValue(ActiveOffsetProperty, value); } } public static readonly DependencyProperty ImageSourceProperty = DependencyProperty.Register("ImageSource", typeof(String), typeof(ActionButton), new PropertyMetadata(String.Empty)); public static readonly DependencyProperty ActiveRatioProperty = DependencyProperty.Register("ActiveRatio", typeof(Double), typeof(ActionButton), new PropertyMetadata(1.0)); public static readonly DependencyProperty ActiveOffsetProperty = DependencyProperty.Register("ActiveOffset", typeof(Double), typeof(ActionButton), new PropertyMetadata(0)); public ActionButton() { this.DefaultStyleKey = typeof(ActionButton); } } } And XAML with styles: <UserControl x:Class="SilverlightGadgetDocked.Page" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:SilverlightGadgetDocked="clr-namespace:SilverlightGadgetDocked" Width="130" Height="150" SizeChanged="UserControl_SizeChanged" MouseEnter="UserControl_MouseEnter" MouseLeave="UserControl_MouseLeave"> <Canvas> <Canvas.Resources> <Style x:Name="ActionButtonStyle" TargetType="SilverlightGadgetDocked:ActionButton"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="SilverlightGadgetDocked:ActionButton"> <Grid> <Image Source="{TemplateBinding ImageSource}" Width="{TemplateBinding Width}" Height="{TemplateBinding Height}"/> </Grid> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style x:Key="DockedActionButtonStyle" TargetType="SilverlightGadgetDocked:ActionButton" BasedOn="{StaticResource ActionButtonStyle}"> <Setter Property="Canvas.ZIndex" Value="2"/> <Setter Property="Canvas.Top" Value="10"/> <Setter Property="Width" Value="30"/> <Setter Property="Height" Value="30"/> <Setter Property="ActiveRatio" Value="1.15"/> <Setter Property="ActiveOffset" Value="5"/> </Style> <Style x:Key="InfoActionButtonStyle" TargetType="SilverlightGadgetDocked:ActionButton" BasedOn="{StaticResource DockedActionButtonStyle}"> <Setter Property="ImageSource" Value="images/action_button_info.png"/> </Style> <Style x:Key="ReadActionButtonStyle" TargetType="SilverlightGadgetDocked:ActionButton" BasedOn="{StaticResource DockedActionButtonStyle}"> <Setter Property="ImageSource" Value="images/action_button_read.png"/> </Style> <Style x:Key="WriteActionButtonStyle" TargetType="SilverlightGadgetDocked:ActionButton" BasedOn="{StaticResource DockedActionButtonStyle}"> <Setter Property="ImageSource" Value="images/action_button_write.png"/> </Style> </Canvas.Resources> <StackPanel> <Image Source="images/background_docked.png" Stretch="None"/> <TextBlock Foreground="White" MaxWidth="130" HorizontalAlignment="Right" VerticalAlignment="Top" Padding="0,0,5,0" Text="Name" FontSize="13"/> </StackPanel> <SilverlightGadgetDocked:ActionButton Canvas.Left="15" Style="{StaticResource InfoActionButtonStyle}" MouseLeftButtonDown="imgActionInfo_MouseLeftButtonDown"/> <SilverlightGadgetDocked:ActionButton Canvas.Left="45" Style="{StaticResource ReadActionButtonStyle}" MouseLeftButtonDown="imgActionRead_MouseLeftButtonDown"/> <SilverlightGadgetDocked:ActionButton Canvas.Left="75" Style="{StaticResource WriteAtionButtonStyle}" MouseLeftButtonDown="imgActionWrite_MouseLeftButtonDown"/> </Canvas> </UserControl> And Visual Studio reports that "Invalid attribute value ActiveRatio for property Property" in line 27 <Setter Property="ActiveRatio" Value="1.15"/> VERY BIG THANKS!!!

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  • move element li into ul with jquery

    - by ron
    Hi everybody i'm looking for a solution to move an element that i need to move into a .... im using jquery and i leave here the code i tried with different things but wasn't working it. this is the big menu <ul class="sf-menu"> <li><a href="">Student Centre</a> <ul> <li><a href="9">STUDENT CENTRAL WEBSITE</a></li> <li><a href="10">STUDENT CENTRAL EMAIL</a></li> <li><a href="11">CCM STUDENT SURVIAL TIPS</a></li> <li><a href="12">VET TUTTTION ASSURANSE</a></li> <li><a href="13">WHAT GOING ON AT CCM</a></li> <li><a href="14">IMPORTANT STUDENTS NOTICE</a></li> </ul> </li> <li><a href="">Research</a> <ul> <li><a href="_16">WHAT IS HOLISTIC KINESIOLOGY ?</a></li> <li><a href="_17">TRANF. CHILDREN W/ LEARNING DIFFICULTIES</a></li> <li><a href="_18">HEALING WITH HOLISTIC KINESIOLOGY</a></li> <li><a href="_19">UNDERSTANDING ASPERGER'S SYNDROME</a></li> <li><a href="_20">DAVID CORBY THE DIRECTOR OF CCM</a></li> <li><a href="_21">HELPING PEOPLE CREATE THEIR OWN MIRACLES</a></li> <li><a href="_22">MAGNESIUM AND COLLOIDAL MINERALS</a></li> <li><a href="_23">BRAIN ENERGETICS CHAKRAS AND NADIS</a></li> <li><a href="_24">KINESIOLOGY FAQ'S</a></li>' </ul> </li> <li><a href="25">Contact Us</a></li> <li><a href="26">A - Z</a></li> </ul> and i need to add this li to ul but i need to put in the second place after the first not nested <li id="faculty"> <a href="#">Faculty Courses </a> <ul> <li><a href="">INTENSE SHORT COURSES</a><ul> <li><a href="_59">CRYSTAL KINESIOLOGY ONE</a></li> <li><a href="_60">APPLIED PHYSIOLOGY</a></li> <li><a href="_61">VIBRATIONAL HEALING SYSTEMS 1</a></li> <li><a href="_62">VIBRATIONAL HEALING SYSTEMS 2</a></li> <li><a href="_63">VIBRATIONAL HEALING SYSTEMS 3</a></li> <li><a href="_64">VIBRATIONAL HEALING SYSTEMS 6</a></li> <li><a href="_65">NUTRITIONAL KINESIOLOGY</a></li> <li><a href="_66">QUANTUM HARMONICS</a></li><li><a href="_67">CHAKRA HOLOGRAM</a></li> <li><a href="_68">CLINICAL APPLICATIONS OF KINESIOLOGY</a></li> <li><a href="_69">COUNSELLING KINESIOLOGY</a></li> <li><a href="_70">HARMONISING CHI FLOW</a></li> </ul> </li> <li><a href="=53">FREE INTRUCTION COURSE DAYS</a> <ul> <li><a href="=53_56">HOLISTIC KINESIOLOGY</a></li> <li><a href="=53_57">TRANSPERSONAL COUNSELLING</a></li> <li><a href="=53_58">SHAMMANISM &amp; TRANSFORMATIONAL MASK</a></li> </ul> </li> <li><a href="=50">DIPLOMA MASK AND TRADITIONAL HEALING</a></li> <li><a href="=43">DIPLOMA TRANSPERSONAL ART THERAPY</a></li> <li><a href="=42">DIPLOMA HOLISTIC KINESIOLOGY</a></li> <li><a href="=47">ADVANCE DIPLOMA HOLISTIC KINESIOLOGY</a></li> <li><a href="=48">DIPLOMA DINAMIC AND FUNCTIONAL</a></li> <li><a href="=49">CERTIFICATE MASK AND TRADITIONAL HEALING</a></li> <li><a href="=51">DIPLOMA TRANSPERSONAL COUNSELLING</a></li> <li><a href="=52">STUDENT CLINICS</a></li> </ul> </li> please i need you help Thanks in advance

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  • icefaces datatable component

    - by chetan
    I have two datatable in two different jspx page but when I call one then i try to call other old one still display what is the problem there. from the old page only datatable is display no other component are displayed. This is one jspx page -- -- <div style="margin-bottom: 20px;"> <div> <div class="page-navi"> <ice:dataPaginator id="dataScroll_3" for="companyDataTable1" paginator="true"> <f:facet name="first"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-first.gif" title="First Page" /> </f:facet> <f:facet name="last"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-last.gif" title="Last Page" /> </f:facet> <f:facet name="previous"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-previous.gif" title="Previous Page" /> </f:facet> <f:facet name="next"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-next.gif" title="Next Page" /> </f:facet> </ice:dataPaginator> </div> <ice:panelGroup> <ice:dataTable id="companyDataTable1" rendered="#{createLeaveBean.empRender}" binding="#{createLeaveBean.empTable}" value="#{createLeaveBean.lstEmployeeeInfo}" var="currentRow" width="80%" cellpadding="0" cellspacing="0" headerClass="std-table-header" styleClass="std-table" rows="10"> <ice:column style="width: 1%"> <f:facet name="header"> <ice:selectBooleanCheckbox id="selectallemp" partialSubmit="true" value="#{createLeaveBean.selectAll}" valueChangeListener="#{createLeaveBean.toggleSelectedFields}" onkeydown="moveFocus(event,'selectoneemp')" tabindex="8"></ice:selectBooleanCheckbox> </f:facet> <ice:selectBooleanCheckbox id="selectoneemp" value="#{currentRow.notify}" tabindex="9" ></ice:selectBooleanCheckbox> </ice:column> <ice:column style="width: 5%;"> <f:facet name="header"><ice:outputText value="Employee Id" /></f:facet> <ice:outputText value="#{currentRow.employeeInfoId}" /> </ice:column> <ice:column style="width: 34%;"> <f:facet name="header"><ice:outputText value="Employee Name" /></f:facet> <ice:outputText value="#{currentRow.firstName}" /> </ice:column> </ice:dataTable> </ice:panelGroup> </div> <ice:commandButton id="createleave" tabindex="12" value="Create" action="#{createLeaveBean.createLeavePolicyEmp}" styleClass="std-btn" style="margin-right: 10px;margin-left: 50px;margin-top: 15px"></ice:commandButton> <ice:commandButton id="cancelleave" tabindex="13" value="Cancel" action="#{createLeaveBean.cancelLeavePolicyEmp}" rendered="true" styleClass="std-btn" style="margin-top: 15px"></ice:commandButton> </div> This is second jspx page <div class="page-navi"> <ice:dataPaginator id="dataScroll_4" for="companyDataTable2" paginator="true"> <f:facet name="first"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-first.gif" title="First Page" /> </f:facet> <f:facet name="last"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-last.gif" title="Last Page" /> </f:facet> <f:facet name="previous"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-previous.gif" title="Previous Page" /> </f:facet> <f:facet name="next"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-next.gif" title="Next Page" /> </f:facet> </ice:dataPaginator> </div> <ice:panelGroup> <ice:dataTable id="companyDataTable2" rendered="#{createLeaveBean.deptRender}" binding="#{createLeaveBean.empTable}" value="#{createLeaveBean.lstEmployeeeInfo}" var="currentRowww" width="96%" cellpadding="0" cellspacing="0" headerClass="std-table-header" styleClass="std-table" rows="10"> <ice:column style="width: 5%;"> <f:facet name="header"><ice:outputText value="Employee Id" /></f:facet> <ice:outputText value="#{currentRowww.employeeInfoId}" /> </ice:column> <ice:column style="width: 34%;"> <f:facet name="header"><ice:outputText value="Employee Name" /></f:facet> <ice:outputText value="#{currentRowww.firstName}" /> </ice:column> </ice:dataTable> </ice:panelGroup> <ice:commandButton id="createLeave" value="Create" action="#{createLeaveBean.createLeavePolicyDept}" styleClass="std-btn" tabindex="8" style="margin-right: 10px;margin-left: 40px;margin-top: 15px"></ice:commandButton> <ice:commandButton id="cancelLeave" value="Cancel" action="#{createLeaveBean.cancelLeavePolicyDept}" rendered="true" styleClass="std-btn" tabindex="9" style="margin-top: 15px"></ice:commandButton>

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  • What is the right tool to detect VMT or heap corruption in Delphi ?

    - by Roland Bengtsson
    I'm a member in a team that use Delphi 2007 for a larger application and we suspect heap corruption because sometimes there are strange bugs that have no other explanation. I believe that the Rangechecking option for the compiler is only for arrays. I want a tool that give an exception or log when there is a write on a memory address that is not allocated by the application. Regards EDIT: The error is of type: Error: Access violation at address 00404E78 in module 'BoatLogisticsAMCAttracsServer.exe'. Read of address FFFFFFDD EDIT2: Thanks for all suggestions. Unfortunately I think that the solution is deeper than that. We use a patched version of Bold for Delphi as we own the source. Probably there are some errors introduced in the Bold framwork. Yes we have a log with callstacks that are handled by JCL and also trace messages. So a callstack with the exception can lock like this: 20091210 16:02:29 (2356) [EXCEPTION] Raised EBold: Failed to derive ServerSession.mayDropSession: Boolean OCL expression: not active and not idle and timeout and (ApplicationKernel.allinstances->first.CurrentSession <> self) Error: Access violation at address 00404E78 in module 'BoatLogisticsAMCAttracsServer.exe'. Read of address FFFFFFDD. At Location BoldSystem.TBoldMember.CalculateDerivedMemberWithExpression (BoldSystem.pas:4016) Inner Exception Raised EBold: Failed to derive ServerSession.mayDropSession: Boolean OCL expression: not active and not idle and timeout and (ApplicationKernel.allinstances->first.CurrentSession <> self) Error: Access violation at address 00404E78 in module 'BoatLogisticsAMCAttracsServer.exe'. Read of address FFFFFFDD. At Location BoldSystem.TBoldMember.CalculateDerivedMemberWithExpression (BoldSystem.pas:4016) Inner Exception Call Stack: [00] System.TObject.InheritsFrom (sys\system.pas:9237) Call Stack: [00] BoldSystem.TBoldMember.CalculateDerivedMemberWithExpression (BoldSystem.pas:4016) [01] BoldSystem.TBoldMember.DeriveMember (BoldSystem.pas:3846) [02] BoldSystem.TBoldMemberDeriver.DoDeriveAndSubscribe (BoldSystem.pas:7491) [03] BoldDeriver.TBoldAbstractDeriver.DeriveAndSubscribe (BoldDeriver.pas:180) [04] BoldDeriver.TBoldAbstractDeriver.SetDeriverState (BoldDeriver.pas:262) [05] BoldDeriver.TBoldAbstractDeriver.Derive (BoldDeriver.pas:117) [06] BoldDeriver.TBoldAbstractDeriver.EnsureCurrent (BoldDeriver.pas:196) [07] BoldSystem.TBoldMember.EnsureContentsCurrent (BoldSystem.pas:4245) [08] BoldSystem.TBoldAttribute.EnsureNotNull (BoldSystem.pas:4813) [09] BoldAttributes.TBABoolean.GetAsBoolean (BoldAttributes.pas:3069) [10] BusinessClasses.TLogonSession._GetMayDropSession (code\BusinessClasses.pas:31854) [11] DMAttracsTimers.TAttracsTimerDataModule.RemoveDanglingLogonSessions (code\DMAttracsTimers.pas:237) [12] DMAttracsTimers.TAttracsTimerDataModule.UpdateServerTimeOnTimerTrig (code\DMAttracsTimers.pas:482) [13] DMAttracsTimers.TAttracsTimerDataModule.TimerKernelWork (code\DMAttracsTimers.pas:551) [14] DMAttracsTimers.TAttracsTimerDataModule.AttracsTimerTimer (code\DMAttracsTimers.pas:600) [15] ExtCtrls.TTimer.Timer (ExtCtrls.pas:2281) [16] Classes.StdWndProc (common\Classes.pas:11583) The inner exception part is the callstack at the moment an exception is reraised. EDIT3: The theory right now is that the Virtual Memory Table (VMT) is somehow broken. When this happen there is no indication of it. Only when a method is called an exception is raised (ALWAYS on address FFFFFFDD, -35 decimal) but then it is too late. You don't know the real cause for the error. Any hint of how to catch a bug like this is really appreciated!!! We have tried with SafeMM, but the problem is that the memory consumption is too high even when the 3 GB flag is used. So now I try to give a bounty to the SO community :) EDIT4: One hint is that according the log there is often (or even always) another exception before this. It can be for example optimistic locking in the database. We have tried to raise exceptions by force but in test environment it just works fine. EDIT5: Story continues... I did a search on the logs for the last 30 days now. The result: "Read of address FFFFFFDB" 0 "Read of address FFFFFFDC" 24 "Read of address FFFFFFDD" 270 "Read of address FFFFFFDE" 22 "Read of address FFFFFFDF" 7 "Read of address FFFFFFE0" 20 "Read of address FFFFFFE1" 0 So the current theory is that an enum (there is a lots in Bold) overwrite a pointer. I got 5 hits with different address above. It could mean that the enum holds 5 values where the second one is most used. If there is an exception a rollback should occur for the database and Boldobjects should be destroyed. Maybe there is a chance that not everything is destroyed and a enum still can write to an address location. If this is true maybe it is possible to search the code by a regexpr for an enum with 5 values ? EDIT6: To summarize, no there is no solution to the problem yet. I realize that I may mislead you a bit with the callstack. Yes there are a timer in that but there are other callstacks without a timer. Sorry for that. But there are 2 common factors. An exception with Read of address FFFFFFxx. Top of callstack is System.TObject.InheritsFrom (sys\system.pas:9237) This convince me that VilleK best describe the problem. I'm also convinced that the problem is somewhere in the Bold framework. But the BIG question is, how can problems like this be solved ? It is not enough to have an Assert like VilleK suggest as the damage has already happened and the callstack is gone at that moment. So to describe my view of what may cause the error: Somewhere a pointer is assigned a bad value 1, but it can be also 0, 2, 3 etc. An object is assigned to that pointer. There is method call in the objects baseclass. This cause method TObject.InheritsForm to be called and an exception appear on address FFFFFFDD. Those 3 events can be together in the code but they may also be used much later. I think this is true for the last method call. EDIT7: We work closely with the the author of Bold Jan Norden and he recently found a bug in the OCL-evaluator in Bold framework. When this was fixed these kinds of exceptions decreased a lot but they still occasionally come. But it is a big relief that this is almost solved.

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  • How to solve JAVA menubar, layout and panel problem ?

    - by Berkay
    i'm not a java guy however i start implementing some security tools with java, in these days i'm creating a gui for my security tools : Here is the how my Gui looks: menuBar = new JMenuBar(); // construct menu bar // hash functions fileMenu = new JMenu("HASH FUNCTIONS"); // define file menu fileMenu.setMnemonic('H'); // shortcut hashes = new JMenuItem("Md5&Sha1"); // define file menu options hashes.setMnemonic('M'); hashes.addActionListener(this); fileMenu.add(hashes); menuBar.add(fileMenu); // add file menu to menu bar // symmetric encryption asMenu = new JMenu("SYMMETRIC ENCRYPTION"); // define format menu asMenu.setMnemonic('S'); // shortcut desItem = new JMenuItem("DES"); // define format menu options desItem.setMnemonic('D'); desItem.addActionListener(this); asMenu.add(desItem); ... ... menuBar.add(helpMenu); // add help menu to menu bar setJMenuBar(menuBar); // put menu bar on application textColor = Color.RED; when from the Menu desitem is selected, desvar is just for not showing the panel multiple times, it calls Panels () else if(e.getSource() == desItem && desvar ==1 ) { // make other panels unvisible. if(hashvar!=1) MyPanel.setVisible(false);//hash functions if(rsavar!=1) MyPanel3.setVisible(false);//rsa function if (dhvar!=1) MyPanel4.setVisible(false);//dh diffie hellman hashvar=1; rsavar=1; dhvar=1; ++desvar; desPanel=true; Panels(); } and in Panels() Method: if (hashPanel){ MyPanel.add("West",radioSHA1); MyPanel.add("West",radioMD5); MyPanel.add("Center", inputField); MyPanel.add("East",SubmitButton); MyPanel.add("South",resultHash); add(MyPanel); validate(); hashPanel=false; } i have many panels for example : -hash functions=mypanel1 , des=mypanel2, rsa functions= mypanel3 , dh= mypanel4 However in may other panals such as rsa function: i have to use some layout properties of the java:in this panel i selected to use gridbaglayout if (dhPanel){ System.out.println("rsa panel burda misin"); MyPanel3.add(pqLabel); MyPanel3.add(pLabel); MyPanel3.add(pTextArea); MyPanel3.add(qLabel); ... ... add(MyPanel3); generate_pqButton.addActionListener(this); calculate_nButton.addActionListener(this); ... ... GridBagLayout layout = new GridBagLayout(); GridBagConstraints gbc = new GridBagConstraints(); setLayout(layout); // x, y, w, h, wx, wy gbc.fill = GridBagConstraints.NONE; add (bit_length_label, gbc, 0, 0, 1, 1, 0, 10); add (p, gbc, 0, 1, 1, 1, 0, 10); add (g, gbc, 0, 2, 1, 1, 0, 10); add (a, gbc, 1, 3, 1, 1, 100, 10); add (x, gbc, 0, 4, 1, 1, 0, 10); add (gx, gbc, 0, 5, 1, 1, 0, 10); add (gxy, gbc, 0, 6, 1, 1, 0, 10); add (b, gbc, 1, 7, 1, 1, 100, 10); add (y, gbc, 0, 8, 1, 1, 0, 10); add (gy, gbc, 0, 9, 1, 1, 0, 10); add (gyx, gbc, 0, 10, 1, 1, 0, 10); add (sk, gbc, 1, 11, 1, 1, 100, 10); add (key, gbc, 0, 12, 1, 1, 0, 10); add (status, gbc, 1, 13, 1, 1, 100, 10); add (dhstart, gbc, 1, 14, 1, 1, 100, 10); add (bit_length_value, gbc, 1, 0, 1, 1, 100, 10); add (p_value, gbc, 1, 1, 1, 1, 100, 10); add (g_value, gbc, 1, 2, 1, 1, 100, 10); add (x_value, gbc, 1, 4, 1, 1, 100, 10); add (gx_value, gbc, 1, 5, 1, 1, 100, 10); add (gxy_value, gbc, 1, 6, 1, 1, 100, 10); add (y_value, gbc, 1, 8, 1, 1, 100, 10); add (gy_value, gbc, 1, 9, 1, 1, 100, 10); add (gyx_value, gbc, 1, 10, 1, 1, 100, 10); validate(); repaint(); rsaPanel=false; } Everthing seems okey however when i swith from one menu to another sometimes components are seen or apper in wrong places or mixed. where i'm doing wrong?

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  • Custom styled select box

    - by Ivan
    Hi to all am trying to use javascript for custom styled select boxes from www.gerrendesign.com/entry_images/selectboxdemo.zip and as I have plenty entries inside one of select box I need to make but am stuck in creation of scrolling function. As this select boxes are compatible with almost all older and new browsers. I need only suggestion or solution how to add scroll in this linked/attached files above - if select box is populated with plenty of entries (example cities, states, or exchange rates...) Am stuck here... Thanks for your cooperation Ivan THIS IS CODE: $(document).ready(function(){ // first locate all of the select tags on the page and hide them $("select.changeMe").css('display','none'); //now, for each select box, run this function $("select.changeMe").each(function(){ var curSel = $(this); // get the CSS width from the original select box var gddWidth = $(curSel).css('width'); var gddWidthL = gddWidth.slice(0,-2); var gddWidth2 = gddWidthL - 28; var gddWidth3 = gddWidthL - 16; // build the new div structure var gddTop = '<div style="width:' + gddWidthL + 'px" class="selectME" tabindex="0"><div class="cornerstop"><div><div></div></div></div><div class="middle"><div><div><div>'; //get the default selected option var whatSelected = $(curSel).children('option:selected').text(); //write the default var gddFirst = '<div class="first"><span class="selectME gselected" style="width:'+ gddWidth2 + 'px;">'+ whatSelected +'</span><span id="arrowImg"></span><div class="clears"></div></div><ul class="selectME">'; // create a new array of div options from the original's options var addItems = new Array(); $(curSel).children('option').each( function() { var text = $(this).text(); var selVal = $(this).attr('value'); var before = '<li style="width:' + gddWidthL + 'px;"><a href="#" rel="' + selVal + '" tabindex="0" style="width:' + gddWidth3 + 'px;">'; var after = '</a></li>'; addItems.push(before + text + after); }); //hide the default from the list of options var removeFirst = addItems.shift(); // create the end of the div selectbox and close everything off var gddBottom ='</ul></div></div></div></div><div class="cornersbottom"><div><div></div></div></div></div>' //write everything after each selectbox var GDD = gddTop + gddFirst + addItems.join('') + gddBottom; $(curSel).after(GDD); //this var selects the div select box directly after each of the origials var nGDD = $(curSel).next('div.selectME'); $(nGDD).find('li:first').addClass("first"); $(nGDD).find('li:last').addClass('last'); //handle the on click functions - push results back to old text box $(nGDD).click( function(e) { var myTarA = $(e.target).attr('rel'); var myTarT = $(e.target).text(); var myTar = $(e.target); //if closed, then open if( $(nGDD).find('li').css('display') == 'none') { //this next line closes any other selectboxes that might be open $('div.selectME').find('li').css('display','none'); $(nGDD).find('li').css('display','block'); //if user clicks off of the div select box, then shut the whole thing down $(document.window || 'body').click( function(f) { var myTar2 = $(f.target); if (myTar2 !== nGDD) {$(nGDD).find('li').css('display','none');} }); return false; } else { if (myTarA == null){ $(nGDD).find('li').css('display','none'); return false; } else { //set the value of the old select box $(curSel).val(myTarA); //set the text of the new one $(nGDD).find('span.gselected').text(myTarT); $(nGDD).find('li').css('display','none'); return false; } } //handle the tab index functions }).focus( function(e) { $(nGDD).find('li:first').addClass('currentDD'); $(nGDD).find('li:last').addClass('lastDD'); function checkKey(e){ //on keypress handle functions function moveDown() { var current = $(nGDD).find('.currentDD:first'); var next = $(nGDD).find('.currentDD').next(); if ($(current).is('.lastDD')){ return false; } else { $(next).addClass('currentDD'); $(current).removeClass('currentDD'); } } function moveUp() { var current = $(nGDD).find('.currentDD:first'); var prev = $(nGDD).find('.currentDD').prev(); if ($(current).is('.first')){ return false; } else { $(prev).addClass('currentDD'); $(current).removeClass('currentDD'); } } var curText = $(nGDD).find('.currentDD:first').text(); var curVal = $(nGDD).find('.currentDD:first a').attr('rel'); switch (e.keyCode) { case 40: $(curSel).val(curVal); $(nGDD).find('span.gselected').text(curText); moveDown(); return false; break; case 38: $(curSel).val(curVal); $(nGDD).find('span.gselected').text(curText); moveUp(); return false; break; case 13: $(nGDD).find('li').css('display','none'); } } $(document).keydown(checkKey); }).blur( function() { $(document).unbind('keydown'); }); }); });

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  • What is the cause of these Visual Studio 2010 errors & warnings?

    - by volpack
    I don't know the cause of these errors I am receiving from Visual Studio 2010. This is the code from my program from line 343 to line 408: int create_den_from_img(char *img_file_name_part, int xlen, int ylen, int zlen ) { IplImage* imgs = 0; char str[80]; unsigned char *data,*imgdata; /* allocating memory */ data = (unsigned char *) malloc(xlen * ylen * zlen * sizeof(unsigned char) ); if(data==NULL) { printf("error in allocating memory \n"); exit(1); } /* Getting the filename & iterating through tiff images */ for(int k = 0; k < zlen; k++) { int count=2; int tmp=k+1; while(tmp/10) { count=count-1; tmp=tmp/10; } switch(count) { case 2:sprintf(str,"%s00%d.tif",img_file_name_part,k+1); break; case 1:sprintf(str,"%s0%d.tif",img_file_name_part,k+1); break; default:sprintf(str,"%s%d.tif",img_file_name_part,k+1); break; } printf("%s\n",str); /* Loading Image using OpenCV */ imgs=cvLoadImage(str,-1); if(imgs==NULL) { printf("error in opening image \n"); exit(1); } imgdata=(uchar *)imgs->imageData; for(int j =0; j < ylen; j++) { for(int i =0; i < xlen; i++) { data[ k*xlen*ylen + j*xlen + i ] = imgdata[ j*xlen+i ]; } } cvReleaseImage(&imgs ); } /* populating `data` variable is done. So, calling `write_den` */ if(write_den("test.den",data,xlen,ylen,zlen)==0) { printf("Error in creating den file\n"); exit(1); } printf("Den file created\n"); } These are the list of errors: Error 3 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 358 1 MTP_TEST Error 4 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 358 1 MTP_TEST Error 5 error C2143: syntax error : missing ')' before 'type' c:\examples\denfile.c 358 1 MTP_TEST Error 6 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 358 1 MTP_TEST Error 7 error C2065: 'k' : undeclared identifier c:\examples\denfile.c 358 1 MTP_TEST Error 9 error C2065: 'k' : undeclared identifier c:\examples\denfile.c 358 1 MTP_TEST Error 10 error C2059: syntax error : ')' c:\examples\denfile.c 358 1 MTP_TEST Error 11 error C2143: syntax error : missing ';' before '{' c:\examples\denfile.c 359 1 MTP_TEST Error 12 error C2065: 'k' : undeclared identifier c:\examples\denfile.c 361 1 MTP_TEST Error 13 error C2065: 'k' : undeclared identifier c:\examples\denfile.c 370 1 MTP_TEST Error 14 error C2065: 'k' : undeclared identifier c:\examples\denfile.c 372 1 MTP_TEST Error 15 error C2065: 'k' : undeclared identifier c:\examples\denfile.c 374 1 MTP_TEST Error 16 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 388 1 MTP_TEST Error 17 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 388 1 MTP_TEST Error 18 error C2143: syntax error : missing ')' before 'type' c:\examples\denfile.c 388 1 MTP_TEST Error 19 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 388 1 MTP_TEST Error 20 error C2065: 'j' : undeclared identifier c:\examples\denfile.c 388 1 MTP_TEST Error 22 error C2065: 'j' : undeclared identifier c:\examples\denfile.c 388 1 MTP_TEST Error 23 error C2059: syntax error : ')' c:\examples\denfile.c 388 1 MTP_TEST Error 24 error C2143: syntax error : missing ';' before '{' c:\examples\denfile.c 389 1 MTP_TEST Error 25 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 390 1 MTP_TEST Error 26 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 390 1 MTP_TEST Error 27 error C2143: syntax error : missing ')' before 'type' c:\examples\denfile.c 390 1 MTP_TEST Error 28 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 390 1 MTP_TEST Error 29 error C2065: 'i' : undeclared identifier c:\examples\denfile.c 390 1 MTP_TEST Error 31 error C2065: 'i' : undeclared identifier c:\examples\denfile.c 390 1 MTP_TEST Error 32 error C2059: syntax error : ')' c:\examples\denfile.c 390 1 MTP_TEST Error 33 error C2143: syntax error : missing ';' before '{' c:\examples\denfile.c 391 1 MTP_TEST Error 34 error C2065: 'k' : undeclared identifier c:\examples\denfile.c 392 1 MTP_TEST Error 35 error C2065: 'j' : undeclared identifier c:\examples\denfile.c 392 1 MTP_TEST Error 36 error C2065: 'i' : undeclared identifier c:\examples\denfile.c 392 1 MTP_TEST Error 37 error C2065: 'j' : undeclared identifier c:\examples\denfile.c 392 1 MTP_TEST Error 38 error C2065: 'i' : undeclared identifier c:\examples\denfile.c 392 1 MTP_TEST I've been getting these kind of errors all day long. Sometimes the code compiles, while at other time it doesn't. Its really annoying.

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  • Ruby (Rack) application could not be started - Passenger (3.0.9) error for rails 3.1.0 app on ubuntu and nginx (1.0.6) after deploying

    - by user938363
    Here is the error saying bcrypt was not loaded. The rails app is not using the Devise for authentication and gem bcrypt is not in Gemfile. Sometime, the webserver throws out the error saying spawn server can not start. gem list shows that both bcrypt-ruby 3.0.1 and 3.0.0 were installed. Ruby (Rack) application could not be started A source file that the application requires, is missing. * It is possible that you didn't upload your application files correctly. Please check whether all your application files are uploaded. * A required library may not installed. Please install all libraries that this application requires. Further information about the error may have been written to the application's log file. Please check it in order to analyse the problem. Error message: no such file to load -- bcrypt Exception class: LoadError Application root: /vol/www/emclab/current Backtrace: # File Line Location 0 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb 240 in `require' 1 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb 240 in `block in require' 2 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb 225 in `load_dependency' 3 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb 240 in `require' 4 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/activemodel-3.1.0/lib/active_model/secure_password.rb 1 in `' 5 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/activerecord-3.1.0/lib/active_record/base.rb 2160 in `block in ' 6 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/activerecord-3.1.0/lib/active_record/base.rb 2140 in `class_eval' 7 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/activerecord-3.1.0/lib/active_record/base.rb 2140 in `' 8 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/activerecord-3.1.0/lib/active_record/base.rb 31 in `' 9 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/activerecord-3.1.0/lib/active_record/session_store.rb 77 in `' 10 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/activerecord-3.1.0/lib/active_record/session_store.rb 51 in `' 11 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/activerecord-3.1.0/lib/active_record/session_store.rb 1 in `' 12 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application/configuration.rb 123 in `session_store' 13 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb 168 in `block in default_middleware_stack' 14 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb 142 in `tap' 15 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb 142 in `default_middleware_stack' 16 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/engine.rb 445 in `app' 17 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application/finisher.rb 37 in `block in ' 18 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb 25 in `instance_exec' 19 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb 25 in `run' 20 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb 50 in `block in run_initializers' 21 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb 49 in `each' 22 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb 49 in `run_initializers' 23 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb 92 in `initialize!' 24 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/railtie/configurable.rb 30 in `method_missing' 25 /vol/www/emclab/releases/20111115184804/config/environment.rb 5 in `' 26 config.ru 3 in `require' 27 config.ru 3 in `block in ' 28 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/rack-1.3.2/lib/rack/builder.rb 51 in `instance_eval' 29 /vol/www/emclab/shared/bundle/ruby/1.9.1/gems/rack-1.3.2/lib/rack/builder.rb 51 in `initialize' 30 config.ru 1 in `new' 31 config.ru 1 in `' 32 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/rack/application_spawner.rb 222 in `eval' 33 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/rack/application_spawner.rb 222 in `load_rack_app' 34 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/rack/application_spawner.rb 156 in `block in initialize_server' 35 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/utils.rb 572 in `report_app_init_status' 36 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/rack/application_spawner.rb 153 in `initialize_server' 37 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server.rb 204 in `start_synchronously' 38 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server.rb 180 in `start' 39 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/rack/application_spawner.rb 128 in `start' 40 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/spawn_manager.rb 253 in `block (2 levels) in spawn_rack_application' 41 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server_collection.rb 132 in `lookup_or_add' 42 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/spawn_manager.rb 246 in `block in spawn_rack_application' 43 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server_collection.rb 82 in `block in synchronize' 44 prelude> 10:in `synchronize' 45 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server_collection.rb 79 in `synchronize' 46 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/spawn_manager.rb 244 in `spawn_rack_application' 47 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/spawn_manager.rb 137 in `spawn_application' 48 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/spawn_manager.rb 275 in `handle_spawn_application' 49 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server.rb 357 in `server_main_loop' 50 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server.rb 206 in `start_synchronously' 51 /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/helper-scripts/passenger-spawn-server 99 in `' cap deploy:check returns: You appear to have all necessary dependencies installed Any thoughts about the problem? thanks!

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  • Why can't I fetch an AOL captcha image in my Delphi program?

    - by Bill
    New demo code: I am trying to get the captcha image from a AOL, and i keep getting an error 418. unit imageunit; /// /// h t t p s://new.aol.com/productsweb/ /// interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, IdIOHandler, IdIOHandlerSocket, IdIOHandlerStack, IdSSL, IdSSLOpenSSL, IdIntercept, IdZLibCompressorBase, IdCompressorZLib, IdCookieManager, IdBaseComponent, IdComponent, IdTCPConnection, IdTCPClient, IdHTTP,jpeg,GIFImg, ExtCtrls, PerlRegEx; type TForm2 = class(TForm) IdHTTP1: TIdHTTP; IdCookieManager1: TIdCookieManager; IdCompressorZLib1: TIdCompressorZLib; IdConnectionIntercept1: TIdConnectionIntercept; IdSSLIOHandlerSocketOpenSSL1: TIdSSLIOHandlerSocketOpenSSL; Panel1: TPanel; Image1: TImage; Panel2: TPanel; Button1: TButton; PerlRegEx1: TPerlRegEx; Memo1: TMemo; procedure Button1Click(Sender: TObject); private { Private declarations } public { Public declarations } end; var Form2: TForm2; implementation {$R *.dfm} function getaimcaptchaimage(data:string):string; var Regex: TPerlRegEx; ResultString: string; begin Regex := TPerlRegEx.Create(nil); Regex.RegEx := '= 1 then begin ResultString := Regex.SubExpressions[1]; end; result:=Resultstring; end; end; procedure TForm2.Button1Click(Sender: TObject); var JPI : TJPEGImage; streamdata:TMemoryStream; SStream: Tstringstream; website:string; begin streamdata := TMemoryStream.Create; SStream := tstringstream.Create ( '' ); try idhttp1.Get('h t t p s://new.aol.com/productsweb/',SStream); memo1.Text:=UTF8ToWideString ( SStream.DataString ); website:='h t t p s://new.aol.com/productsweb/WordVerImage'+getaimcaptchaimage( UTF8ToWideString ( SStream.DataString )); form2.Caption:=website; idhttp1.Get(website, Streamdata); Except { Handle exceptions } On E : Exception Do Begin MessageDlg('Exception: '+E.Message,mtError, [mbOK], 0); End; End; //h t t p s://new.aol.com/productsweb/WordVerImage?20890843 //h t t p s://new.aol.com/productsweb/WordVerImage?91868359 /// /// gives error 418 unused /// streamdata.Position := 0; JPI := TJPEGImage.Create; Try JPI.LoadFromStream ( streamdata ); Finally Image1.Picture.Assign ( JPI ); JPI.Free; streamdata.Free; End; end; end. Form: object Form2: TForm2 Left = 0 Top = 0 Caption = 'Form2' ClientHeight = 247 ClientWidth = 480 Color = clBtnFace Font.Charset = DEFAULT_CHARSET Font.Color = clWindowText Font.Height = -11 Font.Name = 'Tahoma' Font.Style = [] OldCreateOrder = False PixelsPerInch = 96 TextHeight = 13 object Panel1: TPanel Left = 0 Top = 41 Width = 480 Height = 206 Align = alClient TabOrder = 0 object Image1: TImage Left = 1 Top = 1 Width = 478 Height = 115 Align = alClient ExplicitLeft = 5 ExplicitTop = 17 ExplicitWidth = 200 ExplicitHeight = 70 end object Memo1: TMemo Left = 1 Top = 116 Width = 478 Height = 89 Align = alBottom TabOrder = 0 ExplicitLeft = 80 ExplicitTop = 152 ExplicitWidth = 185 end end object Panel2: TPanel Left = 0 Top = 0 Width = 480 Height = 41 Align = alTop TabOrder = 1 object Button1: TButton Left = 239 Top = 6 Width = 75 Height = 25 Caption = 'Button1' TabOrder = 0 OnClick = Button1Click end end object IdHTTP1: TIdHTTP Intercept = IdConnectionIntercept1 IOHandler = IdSSLIOHandlerSocketOpenSSL1 MaxAuthRetries = 100 AllowCookies = True HandleRedirects = True RedirectMaximum = 100 ProxyParams.BasicAuthentication = False ProxyParams.ProxyPort = 0 Request.ContentLength = -1 Request.Accept = 'image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-s' + 'hockwave-flash, application/cade, application/xaml+xml, applicat' + 'ion/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-' + 'application, */*' Request.BasicAuthentication = False Request.Referer = 'http://www.yahoo.com' Request.UserAgent = 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.1) Gecko/201001' + '22 firefox/3.6.1' HTTPOptions = [hoForceEncodeParams] CookieManager = IdCookieManager1 Compressor = IdCompressorZLib1 Left = 40 Top = 160 end object IdCookieManager1: TIdCookieManager Left = 360 Top = 136 end object IdCompressorZLib1: TIdCompressorZLib Left = 408 Top = 56 end object IdConnectionIntercept1: TIdConnectionIntercept Left = 304 Top = 72 end object IdSSLIOHandlerSocketOpenSSL1: TIdSSLIOHandlerSocketOpenSSL Intercept = IdConnectionIntercept1 MaxLineAction = maException Port = 0 DefaultPort = 0 SSLOptions.Mode = sslmUnassigned SSLOptions.VerifyMode = [] SSLOptions.VerifyDepth = 0 Left = 192 Top = 136 end object PerlRegEx1: TPerlRegEx Options = [] Left = 120 Top = 56 end end If you go to h t t p s://new.aol.com/productsweb/ you will notice the captcha image has a url like h t t p s://new.aol.com/productsweb/WordVerImage?91868359 I put that url in the edit box and get an error. What is wrong with this code? *take the extra spaces out of the URLs

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  • Why does ffmpeg stop randomly in the middle of a process?

    - by acidzombie24
    ffmpeg feels like its taking a long time. I then look at my output file and i see it stops between 6 and 8mbs. A fully encoded file is about 14mb. Why does ffmpeg stop? My code locks up on StandardOutput.ReadToEnd();. I had to kill the process (after seeing it not move for more then 10 seconds when i see it update every second previously) then i get the results of stdout and err. stdout is "" stderr is below. The output msg shows the filesize ended. I also see a drop in my CPU usage when it stops. I copyed the argument from visual studios. CD to the same working directory and ran the cmd (bin/ffmpeg) and pasted the argument. It was able to complete. int soundProcess(string infn, string outfn) { string aa, aa2; aa = aa2 = "DEAD"; var app = new Process(); app.StartInfo.UseShellExecute = false; app.StartInfo.RedirectStandardOutput = true; app.StartInfo.RedirectStandardError = true; //*/ app.StartInfo.FileName = @"bin\ffmpeg.exe"; app.StartInfo.Arguments = string.Format(@"-i ""{0}"" -ab 192k -y {2} ""{1}""", infn, outfn, param); app.Start(); try { app.PriorityClass = ProcessPriorityClass.BelowNormal; } catch (Exception ex) { if (!Regex.IsMatch(ex.Message, @"Cannot process request because the process .*has exited")) throw ex; } aa = app.StandardOutput.ReadToEnd(); aa2 = app.StandardError.ReadToEnd(); app.WaitForExit(); if (aa2.IndexOf("could not find codec parameters") != -1) return 1; else if (aa == "DEAD" || aa2 == "DEAD") return -1; else if (aa2.Length != 0) return -2; else return 0; } The output of stderr. stdout is empty. FFmpeg version SVN-r15815, Copyright (c) 2000-2008 Fabrice Bellard, et al. configuration: --enable-memalign-hack --enable-postproc --enable-swscale --enable-gpl --enable-libfaac --enable-libfaad --enable-libgsm --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libx264 --enable-libxvid --disable-ffserver --disable-vhook --enable-avisynth --enable-pthreads libavutil 49.12. 0 / 49.12. 0 libavcodec 52. 3. 0 / 52. 3. 0 libavformat 52.23. 1 / 52.23. 1 libavdevice 52. 1. 0 / 52. 1. 0 libswscale 0. 6. 1 / 0. 6. 1 libpostproc 51. 2. 0 / 51. 2. 0 built on Nov 13 2008 10:28:29, gcc: 4.2.4 (TDM-1 for MinGW) Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\dev\src\trunk\prjname\prjname\App_Data/temp/m/o/6304266424778814852': Duration: 00:12:53.36, start: 0.000000, bitrate: 154 kb/s Stream #0.0(und): Audio: aac, 44100 Hz, stereo, s16 Output #0, ipod, to 'C:\dev\src\trunk\prjname\prjname\App_Data\temp\m\o\2.m4a': Stream #0.0(und): Audio: libfaac, 44100 Hz, stereo, s16, 192 kb/s Stream mapping: Stream #0.0 -> #0.0 Press [q] to stop encoding size= 87kB time=4.74 bitrate= 150.7kbits/s size= 168kB time=9.06 bitrate= 151.9kbits/s size= 265kB time=14.28 bitrate= 151.8kbits/s size= 377kB time=20.29 bitrate= 152.1kbits/s size= 487kB time=26.22 bitrate= 152.1kbits/s size= 594kB time=32.02 bitrate= 152.1kbits/s size= 699kB time=37.64 bitrate= 152.1kbits/s size= 808kB time=43.54 bitrate= 152.0kbits/s size= 930kB time=50.09 bitrate= 152.2kbits/s size= 1058kB time=57.05 bitrate= 152.0kbits/s size= 1193kB time=64.23 bitrate= 152.1kbits/s size= 1329kB time=71.63 bitrate= 152.0kbits/s size= 1450kB time=78.16 bitrate= 152.0kbits/s size= 1578kB time=85.05 bitrate= 152.0kbits/s size= 1706kB time=92.00 bitrate= 152.0kbits/s size= 1836kB time=98.94 bitrate= 152.0kbits/s size= 1971kB time=106.25 bitrate= 151.9kbits/s size= 2107kB time=113.57 bitrate= 152.0kbits/s size= 2214kB time=119.33 bitrate= 152.0kbits/s size= 2345kB time=126.39 bitrate= 152.0kbits/s size= 2479kB time=133.56 bitrate= 152.0kbits/s size= 2611kB time=140.76 bitrate= 152.0kbits/s size= 2745kB time=147.91 bitrate= 152.1kbits/s size= 2880kB time=155.20 bitrate= 152.0kbits/s size= 3013kB time=162.40 bitrate= 152.0kbits/s size= 3146kB time=169.58 bitrate= 152.0kbits/s size= 3277kB time=176.61 bitrate= 152.0kbits/s size= 3412kB time=183.90 bitrate= 152.0kbits/s size= 3540kB time=190.80 bitrate= 152.0kbits/s size= 3670kB time=197.81 bitrate= 152.0kbits/s size= 3805kB time=205.08 bitrate= 152.0kbits/s size= 3932kB time=211.93 bitrate= 152.0kbits/s size= 4052kB time=218.38 bitrate= 152.0kbits/s size= 4171kB time=224.82 bitrate= 152.0kbits/s size= 4277kB time=230.55 bitrate= 152.0kbits/s size= 4378kB time=235.96 bitrate= 152.0kbits/s size= 4486kB time=241.79 bitrate= 152.0kbits/s size= 4592kB time=247.50 bitrate= 152.0kbits/s size= 4698kB time=253.21 bitrate= 152.0kbits/s size= 4804kB time=258.95 bitrate= 152.0kbits/s size= 4906kB time=264.41 bitrate= 152.0kbits/s size= 5012kB time=270.09 bitrate= 152.0kbits/s size= 5118kB time=275.85 bitrate= 152.0kbits/s size= 5234kB time=282.10 bitrate= 152.0kbits/s size= 5331kB time=287.39 bitrate= 151.9kbits/s size= 5445kB time=293.55 bitrate= 152.0kbits/s size= 5555kB time=299.40 bitrate= 152.0kbits/s size= 5665kB time=305.37 bitrate= 152.0kbits/s size= 5766kB time=310.80 bitrate= 152.0kbits/s size= 5876kB time=316.70 bitrate= 152.0kbits/s size= 5984kB time=322.50 bitrate= 152.0kbits/s size= 6094kB time=328.49 bitrate= 152.0kbits/s size= 6212kB time=334.76 bitrate= 152.0kbits/s size= 6327kB time=340.99 bitrate= 152.0kbits/s

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  • Why is Apache seg faulting?

    - by Jamie Howard
    We have a production server that seems to Seg Fault a few times every day. The fault is picked up by Apache and logged in the error log - but there seems to be no traffic around the time. If it's a request generating the fault then it looks like it happens before any other logging is made so I can't see how it's happening so it's very hard to debug. Our setup is Linux 64 bit Centos 5.3 Apache is loaded with the following modules apachectl -t -D DUMP_MODULES | more Loaded Modules: core_module (static) mpm_prefork_module (static) http_module (static) so_module (static) auth_basic_module (shared) auth_digest_module (shared) authn_file_module (shared) authn_alias_module (shared) authn_anon_module (shared) authn_dbm_module (shared) authn_default_module (shared) authz_host_module (shared) authz_user_module (shared) authz_owner_module (shared) authz_groupfile_module (shared) authz_dbm_module (shared) authz_default_module (shared) ldap_module (shared) authnz_ldap_module (shared) include_module (shared) log_config_module (shared) logio_module (shared) env_module (shared) ext_filter_module (shared) mime_magic_module (shared) expires_module (shared) deflate_module (shared) headers_module (shared) usertrack_module (shared) setenvif_module (shared) mime_module (shared) dav_module (shared) status_module (shared) autoindex_module (shared) info_module (shared) dav_fs_module (shared) vhost_alias_module (shared) negotiation_module (shared) dir_module (shared) actions_module (shared) speling_module (shared) userdir_module (shared) alias_module (shared) rewrite_module (shared) proxy_module (shared) proxy_balancer_module (shared) proxy_ftp_module (shared) proxy_http_module (shared) proxy_connect_module (shared) cache_module (shared) suexec_module (shared) disk_cache_module (shared) file_cache_module (shared) mem_cache_module (shared) cgi_module (shared) version_module (shared) security2_module (shared) unique_id_module (shared) fcgid_module (shared) php5_module (shared) proxy_ajp_module (shared) ssl_module (shared) Here's an exert from the Apache error log: [Mon Mar 15 06:39:25 2010] [error] [client 213.246.222.74] client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23): /w00tw00t.at.ISC.SANS.DFind:) [Mon Mar 15 07:41:31 2010] [error] [client 213.246.222.74] client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23): /w00tw00t.at.ISC.SANS.DFind:) [Mon Mar 15 08:24:16 2010] [error] [client 67.19.250.146] client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23): /w00tw00t.at.ISC.SANS.DFind:) [Mon Mar 15 08:43:46 2010] [error] [client 213.246.222.74] client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23): /w00tw00t.at.ISC.SANS.DFind:) [Mon Mar 15 08:54:02 2010] [error] [client 74.208.123.71] client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23): /w00tw00t.at.ISC.SANS.DFind:) [Mon Mar 15 09:09:51 2010] [notice] child pid 2138 exit signal Segmentation fault (11), possible coredump in /tmp [Mon Mar 15 09:45:27 2010] [error] [client 213.246.222.74] client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23): /w00tw00t.at.ISC.SANS.DFind:) [Mon Mar 15 09:49:05 2010] [error] [client 190.12.113.196] File does not exist: /var/www/vhosts/default/htdocs/phpMyAdmin [Mon Mar 15 09:49:06 2010] [error] [client 190.12.113.196] File does not exist: /var/www/vhosts/default/htdocs/PMA And the Access log around the same time (09:09:51): 213.246.222.74 - - [15/Mar/2010:08:43:46 +0000] "GET /" 400 561 "-" "-" 208.80.193.28 - - [15/Mar/2010:08:52:20 +0000] "GET / HTTP/1.0" 301 313 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; SU 2.009)" 74.208.123.71 - - [15/Mar/2010:08:54:02 +0000] "GET /w00tw00t.at.ISC.SANS.DFind:) HTTP/1.1" 400 298 "-" "-" 81.149.146.231 - - [15/Mar/2010:09:15:18 +0000] "GET /zabbix/ HTTP/1.1" 200 3565 "-" "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_2; en-us) AppleWebKit/531.21.8 (KHTML, like Gecko) Version/4.0.4 Safari/531.21.10" 81.158.71.196 - - [15/Mar/2010:09:16:06 +0000] "GET / HTTP/1.1" 301 313 "-" "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.4; en-US; rv:1.9.0.18) Gecko/2010020219 Firefox/3.0.18" 213.246.222.74 - - [15/Mar/2010:09:45:27 +0000] "GET /" 400 561 "-" "-" 213.246.222.74 - - [15/Mar/2010:09:45:27 +0000] "GET /w00tw00t.at.ISC.SANS.DFind:) HTTP/1.1" 400 298 "-" "-" 190.12.113.196 - - [15/Mar/2010:09:49:05 +0000] "GET /phpMyAdmin/main.php HTTP/1.0" 404 295 "-" "-" So As you can see, there's no access logged around the time of the fault!! How annoying :s I enabled core dumps and here is the backtrace: #0 0x00007f9c8c8a858b in memcpy () from /lib64/libc.so.6 No symbol table info available. #1 0x00007f9c8cfb066d in apr_pstrcat (a=<value optimized out>) at strings/apr_strings.c:165 cp = 0x1fa6b "\205¦H\211¦t`¦\003" argp = 0x7f9c9ad790e8 "Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Referer, Re"... res = 0x0 saved_lengths = {129643, 2, 43, 140310399395576, 0, 140310394592712} nargs = <value optimized out> len = <value optimized out> adummy = {{gp_offset = 16, fp_offset = 32668, overflow_arg_area = 0x7fff968a0ec0, reg_save_area = 0x7fff968a0de0}} #2 0x00007f9c8cfb1bf9 in apr_table_merge (t=0x7f9c8f83b148, key=0x7f9c85a465fe "Vary", val=0x7f9c9ad99070 "Referer, Referer, Referer, Referer, Referer") at tables/apr_tables.c:688 next_elt = (apr_table_entry_t *) 0x7f9c8f83b270 end_elt = (apr_table_entry_t *) 0x7f9c8f83b270 checksum = <value optimized out> hash = 22 #3 0x00007f9c85a42cfa in ?? () from /etc/httpd/modules/mod_rewrite.so No symbol table info available. #4 0x00007f9c85a44022 in ?? () from /etc/httpd/modules/mod_rewrite.so No symbol table info available. #5 0x00007f9c8e87bd1a in ap_run_fixups () from /usr/sbin/httpd No symbol table info available. #6 0x00007f9c8e88e8f8 in ap_process_request () from /usr/sbin/httpd No symbol table info available. #7 0x00007f9c8e88bb40 in ?? () from /usr/sbin/httpd No symbol table info available. #8 0x00007f9c8e887ca2 in ap_run_process_connection () from /usr/sbin/httpd No symbol table info available. #9 0x00007f9c8e892849 in ?? () from /usr/sbin/httpd No symbol table info available. #10 0x00007f9c8e892ada in ?? () from /usr/sbin/httpd No symbol table info available. #11 0x00007f9c8e892b90 in ?? () from /usr/sbin/httpd No symbol table info available. #12 0x00007f9c8e89387b in ap_mpm_run () from /usr/sbin/httpd No symbol table info available. #13 0x00007f9c8e86de48 in main () from /usr/sbin/httpd No symbol table info available. Can anyone shed any light on how to move forward with this? I can confirm that the server is operational and doesn't appear to be misbehaving - the failures are so infrequent that I haven't seen it do one while making a request myself. Really appreciate any help! Cheers!

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  • ruby on rails language problem "invalid byte sequence in GBK"

    - by user357203
    This is definitely a language issue, both of our code and our database contains Chinese characters. **This is my environment: About your application's environment Ruby version 1.9.1 (i386-mingw32) RubyGems version 1.3.5 Rack version 1.0 Rails version 2.3.5 Active Record version 2.3.5 Active Resource version 2.3.5 Action Mailer version 2.3.5 Active Support version 2.3.5 Application root C:/path_to_my_root Environment development Database adapter mysql Database schema version 20100327010640 **This is my localhost;3000 after running my ruby server: ArgumentError in HomeController#construction invalid byte sequence in GBK RAILS_ROOT: C:/path_to_my_root Application Trace | Framework Trace | Full Trace C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_view/ template_error.rb:43:in `split' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_view/ template_error.rb:43:in `source_extract' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_view/ template_error.rb:86:in `compute_backtrace' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_view/ template_error.rb:11:in `initialize' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_view/ template.rb:212:in `new' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_view/ template.rb:212:in `rescue in render_template' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_view/ template.rb:205:in `render_template' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_view/ base.rb:265:in `render' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_view/ base.rb:352:in `_render_with_layout' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_view/ base.rb:262:in `render' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/base.rb:1250:in `render_for_file' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/base.rb:951:in `render' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/benchmarking.rb:51:in `block in render_with_benchmark' C:/Ruby19/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/ active_support/core_ext/benchmark.rb:17:in `block in ms' C:/Ruby19/lib/ruby/1.9.1/benchmark.rb:309:in `realtime' C:/Ruby19/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/ active_support/core_ext/benchmark.rb:17:in `ms' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/benchmarking.rb:51:in `render_with_benchmark' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/mime_responds.rb:135:in `block in custom' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/mime_responds.rb:179:in `call' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/mime_responds.rb:179:in `block in respond' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/mime_responds.rb:173:in `each' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/mime_responds.rb:173:in `respond' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/mime_responds.rb:107:in `respond_to' C:/Users/Howard/Documents/local/vjoin/app/controllers/ home_controller.rb:53:in `construction' ..... C:/Ruby19/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/ methodoverride.rb:24:in `call' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/params_parser.rb:15:in `call' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/session/cookie_store.rb:93:in `call' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/failsafe.rb:26:in `call' C:/Ruby19/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/lock.rb:11:in `block in call' :8:in `synchronize' C:/Ruby19/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/dispatcher.rb:114:in `block in call' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/reloader.rb:34:in `run' C:/Ruby19/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/ action_controller/dispatcher.rb:108:in `call' C:/Ruby19/lib/ruby/gems/1.9.1/gems/rails-2.3.5/lib/rails/rack/ static.rb:31:in `call' C:/Ruby19/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/urlmap.rb:46:in `block in call' C:/Ruby19/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `each' C:/Ruby19/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `call' C:/Ruby19/lib/ruby/gems/1.9.1/gems/rails-2.3.5/lib/rails/rack/ log_tailer.rb:17:in `call' C:/Ruby19/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/ content_length.rb:13:in `call' C:/Ruby19/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/handler/ webrick.rb:50:in `service' C:/Ruby19/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service' C:/Ruby19/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run' C:/Ruby19/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread' Request Parameters: None Show session dump Response Headers: {"Cache-Control"=>"no-cache", "Content-Type"=>"text/html"} **What should I do? I tried to search online, didn't find much. The only thing I found was something like putting the following into application_controller: before_filter :set_charset, :set_locale def set_charset response.headers["Content-Type"] = "text/html; charset=utf-8" WIN32OLE.codepage = WIN32OLE::CP_UTF8 end but this still doesn't work. I am new to ruby on rails, so don't know much about it. Thanks for your help.

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  • Hung JVM consuming 100% CPU

    - by Bogdan
    We have a JAVA server running on Sun JRE 6u20 on Linux 32-bit (CentOS). We use the Server Hotspot with CMS collector with the following options (I've only provided the relevant ones): -Xmx896m -Xss128k -XX:NewSize=384M -XX:MaxPermSize=96m -XX:+UseParNewGC -XX:+UseConcMarkSweepGC Sometimes, after running for a while, the JVM seems to slip into a hung state, whereby even though we don't make any requests to the application, the CPU continues to spin at 100% (we have 8 logical CPUs, so it looks like only one CPU does the spinning). In this state the JVM doesn't respond to SIGHUP signals (kill -3) and we can't connect to it normally with jstack. We CAN connect with "jstack -F", but the output is dodgy (we can see lots of NullPointerExceptions from JStack apparently because it wasn't able to 'walk' some stacks). So the "jstack -F" output seems to be useless. We have run a stack dump from "gdb" though, and we were able to match the thread id that spins the CPU (we found that using "top" with a per-thread view - "H" option) with a thread stack that appears in the gdb result and this is how it looks like: Thread 443 (Thread 0x7e5b90 (LWP 26310)): #0 0x0115ebd3 in CompactibleFreeListSpace::block_size(HeapWord const*) const () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #1 0x01160ff9 in CompactibleFreeListSpace::prepare_for_compaction(CompactPoint*) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #2 0x0123456c in Generation::prepare_for_compaction(CompactPoint*) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #3 0x01229b2c in GenCollectedHeap::prepare_for_compaction() () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #4 0x0122a7fc in GenMarkSweep::invoke_at_safepoint(int, ReferenceProcessor*, bool) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #5 0x01186024 in CMSCollector::do_compaction_work(bool) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #6 0x011859ee in CMSCollector::acquire_control_and_collect(bool, bool) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #7 0x01185705 in ConcurrentMarkSweepGeneration::collect(bool, bool, unsigned int, bool) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #8 0x01227f53 in GenCollectedHeap::do_collection(bool, bool, unsigned int, bool, int) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #9 0x0115c7b5 in GenCollectorPolicy::satisfy_failed_allocation(unsigned int, bool) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #10 0x0122859c in GenCollectedHeap::satisfy_failed_allocation(unsigned int, bool) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #11 0x0158a8ce in VM_GenCollectForAllocation::doit() () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #12 0x015987e6 in VM_Operation::evaluate() () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #13 0x01597c93 in VMThread::evaluate_operation(VM_Operation*) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #14 0x01597f0f in VMThread::loop() () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #15 0x015979f0 in VMThread::run() () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #16 0x0145c24e in java_start(Thread*) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #17 0x00ccd46b in start_thread () from /lib/libpthread.so.0 #18 0x00bc2dbe in clone () from /lib/libc.so.6 It seems that a JVM thread is spinning while doing some CMS related work. We have checked the memory usage on the box, there seems to be enough memory available and the system is not swapping. Has anyone come across such a situation? Does it look like a JVM bug? UPDATE I've obtained some more information about this problem (it happened again on a server that has been running for more than 7 days). When the JVM entered the "hung" state it stayed like that for 2 hours until the server was manually restarted. We have obtained a core dump of the process and the gc log. We tried to get a heap dump as well, but "jmap" failed. We tried to use jmap -F but then only a 4Mb file was written before the program aborted with an exception (something about the a memory location not being accessible). So far I think the most interesting information comes from the gc log. It seems that the GC logging stopped as well (possibly at the time when the VM thread went into the long loop): 657501.199: [Full GC (System) 657501.199: [CMS: 400352K->313412K(524288K), 2.4024120 secs] 660634K->313412K(878208K), [CMS Perm : 29455K->29320K(68568K)], 2.4026470 secs] [Times: user=2.39 sys=0.01, real=2.40 secs] 657513.941: [GC 657513.941: [ParNew: 314624K->13999K(353920K), 0.0228180 secs] 628036K->327412K(878208K), 0.0230510 secs] [Times: user=0.08 sys=0.00, real=0.02 secs] 657523.772: [GC 657523.772: [ParNew: 328623K->17110K(353920K), 0.0244910 secs] 642036K->330523K(878208K), 0.0247140 secs] [Times: user=0.08 sys=0.00, real=0.02 secs] 657535.473: [GC 657535.473: [ParNew: 331734K->20282K(353920K), 0.0259480 secs] 645147K->333695K(878208K), 0.0261670 secs] [Times: user=0.11 sys=0.00, real=0.02 secs] .... .... 688346.765: [GC [1 CMS-initial-mark: 485248K(524288K)] 515694K(878208K), 0.0343730 secs] [Times: user=0.03 sys=0.00, real=0.04 secs] 688346.800: [CMS-concurrent-mark-start] 688347.964: [CMS-concurrent-mark: 1.083/1.164 secs] [Times: user=2.52 sys=0.09, real=1.16 secs] 688347.964: [CMS-concurrent-preclean-start] 688347.969: [CMS-concurrent-preclean: 0.004/0.005 secs] [Times: user=0.00 sys=0.01, real=0.01 secs] 688347.969: [CMS-concurrent-abortable-preclean-start] CMS: abort preclean due to time 688352.986: [CMS-concurrent-abortable-preclean: 2.351/5.017 secs] [Times: user=3.83 sys=0.38, real=5.01 secs] 688352.987: [GC[YG occupancy: 297806 K (353920 K)]688352.987: [Rescan (parallel) , 0.1815250 secs]688353.169: [weak refs processing, 0.0312660 secs] [1 CMS-remark: 485248K(524288K)] 783055K(878208K), 0.2131580 secs] [Times: user=1.13 sys =0.00, real=0.22 secs] 688353.201: [CMS-concurrent-sweep-start] 688353.903: [CMS-concurrent-sweep: 0.660/0.702 secs] [Times: user=0.91 sys=0.07, real=0.70 secs] 688353.903: [CMS-concurrent-reset-start] 688353.912: [CMS-concurrent-reset: 0.008/0.008 secs] [Times: user=0.01 sys=0.00, real=0.01 secs] 688354.243: [GC 688354.243: [ParNew: 344928K->30151K(353920K), 0.0305020 secs] 681955K->368044K(878208K), 0.0308880 secs] [Times: user=0.15 sys=0.00, real=0.03 secs] .... .... 688943.029: [GC 688943.029: [ParNew: 336531K->17143K(353920K), 0.0237360 secs] 813250K->494327K(878208K), 0.0241260 secs] [Times: user=0.10 sys=0.00, real=0.03 secs] 688950.620: [GC 688950.620: [ParNew: 331767K->22442K(353920K), 0.0344110 secs] 808951K->499996K(878208K), 0.0347690 secs] [Times: user=0.11 sys=0.00, real=0.04 secs] 688956.596: [GC 688956.596: [ParNew: 337064K->37809K(353920K), 0.0488170 secs] 814618K->515896K(878208K), 0.0491550 secs] [Times: user=0.18 sys=0.04, real=0.05 secs] 688961.470: [GC 688961.471: [ParNew (promotion failed): 352433K->332183K(353920K), 0.1862520 secs]688961.657: [CMS I suspect this problem has something to do with the last line in the log (I've added some "...." in order to skip some lines that were not interesting). The fact that the server stayed in the hung state for 2 hours (probably trying to GC and compact the old generation) seems quite strange to me. Also, the gc log stops suddenly with that message and nothing else gets printed any more, probably because the VM Thread gets into some sort of infinite loop (or something that takes 2+ hours).

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  • Where is the virtual function call overhead?

    - by Semen Semenych
    Hello everybody, I'm trying to benchmark the difference between a function pointer call and a virtual function call. To do this, I have written two pieces of code, that do the same mathematical computation over an array. One variant uses an array of pointers to functions and calls those in a loop. The other variant uses an array of pointers to a base class and calls its virtual function, which is overloaded in the derived classes to do absolutely the same thing as the functions in the first variant. Then I print the time elapsed and use a simple shell script to run the benchmark many times and compute the average run time. Here is the code: #include <iostream> #include <cstdlib> #include <ctime> #include <cmath> using namespace std; long long timespecDiff(struct timespec *timeA_p, struct timespec *timeB_p) { return ((timeA_p->tv_sec * 1000000000) + timeA_p->tv_nsec) - ((timeB_p->tv_sec * 1000000000) + timeB_p->tv_nsec); } void function_not( double *d ) { *d = sin(*d); } void function_and( double *d ) { *d = cos(*d); } void function_or( double *d ) { *d = tan(*d); } void function_xor( double *d ) { *d = sqrt(*d); } void ( * const function_table[4] )( double* ) = { &function_not, &function_and, &function_or, &function_xor }; int main(void) { srand(time(0)); void ( * index_array[100000] )( double * ); double array[100000]; for ( long int i = 0; i < 100000; ++i ) { index_array[i] = function_table[ rand() % 4 ]; array[i] = ( double )( rand() / 1000 ); } struct timespec start, end; clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &start); for ( long int i = 0; i < 100000; ++i ) { index_array[i]( &array[i] ); } clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &end); unsigned long long time_elapsed = timespecDiff(&end, &start); cout << time_elapsed / 1000000000.0 << endl; } and here is the virtual function variant: #include <iostream> #include <cstdlib> #include <ctime> #include <cmath> using namespace std; long long timespecDiff(struct timespec *timeA_p, struct timespec *timeB_p) { return ((timeA_p->tv_sec * 1000000000) + timeA_p->tv_nsec) - ((timeB_p->tv_sec * 1000000000) + timeB_p->tv_nsec); } class A { public: virtual void calculate( double *i ) = 0; }; class A1 : public A { public: void calculate( double *i ) { *i = sin(*i); } }; class A2 : public A { public: void calculate( double *i ) { *i = cos(*i); } }; class A3 : public A { public: void calculate( double *i ) { *i = tan(*i); } }; class A4 : public A { public: void calculate( double *i ) { *i = sqrt(*i); } }; int main(void) { srand(time(0)); A *base[100000]; double array[100000]; for ( long int i = 0; i < 100000; ++i ) { array[i] = ( double )( rand() / 1000 ); switch ( rand() % 4 ) { case 0: base[i] = new A1(); break; case 1: base[i] = new A2(); break; case 2: base[i] = new A3(); break; case 3: base[i] = new A4(); break; } } struct timespec start, end; clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &start); for ( int i = 0; i < 100000; ++i ) { base[i]->calculate( &array[i] ); } clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &end); unsigned long long time_elapsed = timespecDiff(&end, &start); cout << time_elapsed / 1000000000.0 << endl; } My system is LInux, Fedora 13, gcc 4.4.2. The code is compiled it with g++ -O3. The first one is test1, the second is test2. Now I see this in console: [Ignat@localhost circuit_testing]$ ./test2 && ./test2 0.0153142 0.0153166 Well, more or less, I think. And then, this: [Ignat@localhost circuit_testing]$ ./test2 && ./test2 0.01531 0.0152476 Where are the 25% which should be visible? How can the first executable be even slower than the second one? I'm asking this because I'm doing a project which involves calling a lot of small functions in a row like this in order to compute the values of an array, and the code I've inherited does a very complex manipulation to avoid the virtual function call overhead. Now where is this famous call overhead?

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  • WCF - Compact Framework - Pull data from mobile client

    - by jagse
    Hello guys, I want to communicate xml serialized objects from the server to the client and the other way arround. Now it is (probably) easy to invoke methods from a mobile client (compact framework) using WCF, but is there a way so that the server can invoke methods on the client side or some other way to pull data from the client? I know that callback contracts are not available in the compact framework as you can see here: http://blogs.msdn.com/andrewarnottms/archive/2007/09/13/calling-wcf-services-from-netcf-3-5-using-compact-wcf-and-netcfsvcutil-exe.aspx Originally I thought of socket programming and of developing this by myself, then someone here mentioned WCF. But it seems like WCF only would work in a non mobile environment as I need callbacks. Anyone can help me with this? Is it possible to develop a two way communication with a desktop server and multiple mobile clients using WCF, or will I have to do socket programming? Thanks for any advice or any kind of help!

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  • Fail to analyze core dump with GDB when main.elf is dynamically linked (uses shared libs)

    - by dscTobi
    Hi all. I'm trying to analyze core dump, but i get following result: GNU gdb 6.6.0.20070423-cvs Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "--host=mipsel-linux --target=mipsel-linux-uclibc". (gdb) file main.elf Reading symbols from /home/tobi/main.elf...Reading symbols from /home/tobi/main.dbg...done. done. (gdb) core-file /srv/tobi/core warning: .dynamic section for "/lib/libpthread.so.0" is not at the expected address (wrong library or version mismatch?) Error while mapping shared library sections: /lib/libdl.so.0: No such file or directory. Error while mapping shared library sections: /lib/librt.so.0: No such file or directory. Error while mapping shared library sections: /lib/libm.so.0: No such file or directory. Error while mapping shared library sections: /lib/libstdc++.so.6: No such file or directory. Error while mapping shared library sections: /lib/libc.so.0: No such file or directory. warning: .dynamic section for "/lib/libgcc_s.so.1" is not at the expected address (wrong library or version mismatch?) Error while mapping shared library sections: /lib/ld-uClibc.so.0: No such file or directory. Reading symbols from /lib/libpthread.so.0...done. Loaded symbols for /lib/libpthread.so.0 Symbol file not found for /lib/libdl.so.0 Symbol file not found for /lib/librt.so.0 Symbol file not found for /lib/libm.so.0 Symbol file not found for /lib/libstdc++.so.6 Symbol file not found for /lib/libc.so.0 Reading symbols from /lib/libgcc_s.so.1...done. Loaded symbols for /lib/libgcc_s.so.1 Symbol file not found for /lib/ld-uClibc.so.0 warning: Unable to find dynamic linker breakpoint function. GDB will be unable to debug shared library initializers and track explicitly loaded dynamic code. Core was generated by 'root/main.elf'. Program terminated with signal 11, Segmentation fault. #0 0x0046006c in NullPtr (parse_p=0x2ac9dc80, result_sym_p=0x13e3d6c "") at folder/my1.c:1624 1624 *ptr += 13; (gdb) bt #0 0x0046006c in NullPtr (parse_p=0x2ac9dc80, result_sym_p=0x13e3d6c "") at folder/my1.c:1624 #1 0x0047a31c in fn1 (line_ptr=0x2ac9dd18 "ccore_null_pointer", target_ptr=0x13e3d6c "", result_ptr=0x2ac9dd14) at folder/my2.c:980 #2 0x0047b9d0 in fn2 (macro_ptr=0x0, rtn_exp_ptr=0x0) at folder/my3.c:1483 /... some functions .../ #8 0x2aab7f9c in __nptl_setxid () from /lib/libpthread.so.0 Backtrace stopped: frame did not save the PC (gdb) thread apply all bt Thread 159 (process 1093): #0 0x2aac15dc in _Unwind_GetCFA () from /lib/libpthread.so.0 #1 0x2afdfde8 in ?? () warning: GDB cant find the start of the function at 0x2afdfde8. GDB is unable to find the start of the function at 0x2afdfde8 and thus cant determine the size of that functions stack frame. This means that GDB may be unable to access that stack frame, or the frames below it. This problem is most likely caused by an invalid program counter or stack pointer. However, if you think GDB should simply search farther back from 0x2afdfde8 for code which looks like the beginning of a function, you can increase the range of the search using the set heuristic-fence-post command. Backtrace stopped: previous frame inner to this frame (corrupt stack?) Thread 158 (process 1051): #0 0x2aac17bc in pthread_mutexattr_getprioceiling () from /lib/libpthread.so.0 #1 0x2aac17a0 in pthread_mutexattr_getprioceiling () from /lib/libpthread.so.0 Backtrace stopped: previous frame identical to this frame (corrupt stack?) Thread 157 (process 1057): #0 0x2aabf908 in ?? () from /lib/libpthread.so.0 #1 0x00000000 in ?? () Thread 156 (process 1090): #0 0x2aac17bc in pthread_mutexattr_getprioceiling () from /lib/libpthread.so.0 #1 0x2aac17a0 in pthread_mutexattr_getprioceiling () from /lib/libpthread.so.0 Backtrace stopped: previous frame identical to this frame (corrupt stack?) Thread 155 (process 1219): #0 0x2aabf908 in ?? () from /lib/libpthread.so.0 #1 0x00000000 in ?? () Thread 154 (process 1218): #0 0x2aabfb44 in connect () from /lib/libpthread.so.0 #1 0x00000000 in ?? () Thread 153 (process 1096): #0 0x2abc92b4 in ?? () warning: GDB cant find the start of the function at 0x2abc92b4. #1 0x2abc92b4 in ?? () warning: GDB cant find the start of the function at 0x2abc92b4. Backtrace stopped: previous frame identical to this frame (corrupt stack?) Thread 152 (process 1170): #0 0x2aabfb44 in connect () from /lib/libpthread.so.0 #1 0x00000000 in ?? () If i make main.elf statically linked everything is OK and i can see bt of all threads. Any ideas?

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  • WPF Lookless Control Events

    - by Scott
    I have the following class: public class LooklessControl : Control { public List<int> IntList { get; private set; } public int CurrentInt { get; private set; } private int _index = 0; static LooklessControl() { DefaultStyleKeyProperty.OverrideMetadata(typeof(LooklessControl), new FrameworkPropertyMetadata(typeof(LooklessControl))); } public LooklessControl() { IntList = new List<int>(); for (int i = 0; i < 10; i++) { IntList.Add(i); } CurrentInt = IntList[_index]; } public static readonly RoutedCommand NextItemCommand = new RoutedCommand("NextItemCommand", typeof(LooklessControl)); private void ExecutedNextItemCommand(object sender, ExecutedRoutedEventArgs e) { NextItemHandler(); } private void CanExecuteNextItemCommand(object sender, CanExecuteRoutedEventArgs e) { e.CanExecute = true; } public static readonly RoutedCommand PrevItemCommand = new RoutedCommand("PrevItemCommand", typeof(LooklessControl)); private void ExecutedPrevItemCommand(ExecutedRoutedEventArgs e) { PrevItemHandler(); } private void CanExecutePrevItemCommand(object sender, CanExecuteRoutedEventArgs e) { e.CanExecute = true; } public static readonly RoutedEvent NextItemEvent = EventManager.RegisterRoutedEvent("NextItemEvent", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(LooklessControl)); public event RoutedEventHandler NextItem { add { AddHandler(NextItemEvent, value); } remove { RemoveHandler(NextItemEvent, value); } } private void RaiseNextItemEvent() { RoutedEventArgs args = new RoutedEventArgs(LooklessControl.NextItemEvent); RaiseEvent(args); } public static readonly RoutedEvent PrevItemEvent = EventManager.RegisterRoutedEvent("PrevItemEvent", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(LooklessControl)); public event RoutedEventHandler PrevItem { add { AddHandler(PrevItemEvent, value); } remove { RemoveHandler(PrevItemEvent, value); } } private void RaisePrevItemEvent() { RoutedEventArgs args = new RoutedEventArgs(LooklessControl.PrevItemEvent); RaiseEvent(args); } private void NextItemHandler() { _index++; if (_index == IntList.Count) { _index = 0; } CurrentInt = IntList[_index]; RaiseNextItemEvent(); } private void PrevItemHandler() { _index--; if (_index == 0) { _index = IntList.Count - 1; } CurrentInt = IntList[_index]; RaisePrevItemEvent(); } } The class has a default style, in Generic.xaml, that looks like this: <Style x:Key="{x:Type local:LooklessControl}" TargetType="{x:Type local:LooklessControl}"> <Setter Property="Height" Value="200"/> <Setter Property="Width" Value="90"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type local:LooklessControl}"> <Border BorderBrush="Black" BorderThickness="1" Padding="2"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="20"/> <RowDefinition Height="*"/> </Grid.RowDefinitions> <Rectangle Grid.Row="0" Fill="LightGray"/> <Rectangle Grid.Row="1" Fill="Gainsboro"/> <Grid Grid.Row="0"> <Grid.ColumnDefinitions> <ColumnDefinition Width="10"/> <ColumnDefinition Width="*"/> <ColumnDefinition Width="10"/> </Grid.ColumnDefinitions> <Path Grid.Column="0" x:Name="pathLeftArrow" Data="M0,0.5 L1,1 1,0Z" Width="6" Height="14" Stretch="Fill" HorizontalAlignment="Center" Fill="SlateBlue"/> <TextBlock Grid.Column="1" Name="textBlock" Text="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=CurrentInt}" HorizontalAlignment="Center" VerticalAlignment="Center" FontFamily="Junction" FontSize="13"/> <Path Grid.Column="2" x:Name="pathRightArrow" Data="M0,0 L1,0.5 0,1Z" Width="6" Height="14" Stretch="Fill" HorizontalAlignment="Center" Fill="SlateBlue"/> </Grid> <ListBox Grid.Row="1" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" Background="Transparent" ItemsSource="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=IntList}"/> </Grid> </Border> </ControlTemplate> </Setter.Value> </Setter> </Style> How do I make it so that when the user clicks on pathLeftArrow it fires LooklessControl.PrevItemCommand, or or they click on pathRightArrow and it fires LooklessControl.NextItemCommand, or they click on an item in the ListBox and LooklessControl is notified of the newly selected item? In other words, without adding x:Class to the top of Generic.xaml and thus creating a code-behind file for it, which I assume you wouldn't want to do, how do you handle events for elements in your xaml that don't have a Command property (which is just about everything other than a Button)? Should LooklessControl have it's own XAML file (much like what you get when you create a new UserControl) associated with it that Generic.xaml just pulls in as a MergedDictionar as its default template? Or is there some other acknowledged way to do what I'm trying to do?

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  • [C#] Namespace Orginization and Conventions

    - by Bob Dylan
    So I have a little bit of a problem. I working on a project in C# using The StackOveflow API. You can send it a request like so: http://stackoverflow.com/users/rep/126196/2010-01-01/2010-03-13 And get back something like this JSON response: [{"PostUrl":"1167342", "PostTitle":"Are ref and out in C# the same a pointers in C++?", "Rep":10}, {"PostUrl":"1290595", "PostTitle":"Where can I find a good tutorial on bubbling?", "Rep":10} ... So my problem is that I have some methods like GetJsonResponse() which return the above JSON and SaveTempFile() which saves that JSON response to a temporary file for later use. I not sure if I should create a class for them, or what namespace to put them under. Right now my current namespace hierarchy is like so: StackOverflow.Api.Json. So how should I organize these methods/classes/namespaces?

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  • Delphi 7 : how to split a string into a TStringList

    - by mawg
    It's Delphi seven and I want the equivalent of strtok(). Specifically, I have a DFM as a string (pulled from a MySql database) and I want to split it into lines in a TStringList. It looks something like this ... 'Oject Form1: TScriptForm'#$D#$A' Left = 0'#$D#$A' Top = 0'#$D#$A' Align = alClient'#$D#$A' BorderStyle = bsNone'#$D#$A' ClientHeight = 517'#$D#$A' ClientWidth = 993'#$D#$A' Color = clBtnFace'#$D#$A' Font.Charset = DEFAULT_CHARSET'#$D#$A' Font.Color = clWindowText'#$D#$A' Font.Height = -11'#$D#$A' Font.Name = 'MS Sans Serif''#$D#$A' Font.Style = []'#$D#$A' OldCreateOrder = False'#$D#$A' SaveProps.Strings = ('#$D#$A' 'Visible=False')'#$D#$A' PixelsPerInch = 96'#$D#$A' TextHeight = 13'#$D#$A'

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  • Load balancing, connection loop

    - by Iapilgrim
    Hi all, I've set up load balancing using Apache, Tomcat through ajp connector. Here the config Apache/httpd.conf BalancerMember ajp://10.0.10.13:8009 route=osmoz-tomcat-1 retry=5 BalancerMember ajp://10.0.10.14:8009 route=osmoz-tomcat-2 retry=5 < Location / Allow From All ProxyPass balancer://tomcatservers/ stickysession=JSESSIONID nofailover=off ProxyPassReverse / < /Location When I try to access https://mycms.net/apps/bo/signin I see the connection loop forever ( redirection forever). I don't know why. This happens sometimes. So my question are: Is there any way Apache make connection loop? Is there a tool help me to monitor the connection? My question may not clear but I don't have any glue right now. Thanks

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  • Son of Suckerfish ie6 problem - right-most dropdown menu also appearing on left side of screen

    - by Kevin Burke
    I'm interning for an NGO in India and trying to fix their website, including updating their menu so it's not the last item on the page to load, and it's centered on the screen. Everything works well enough but when I try out my new menu in IE6, I get this weird error where the content below the menu is padded an extra 30px or so and the material in the right-most drop down appears on the far left of the screen, always visible. When I drop down the rightmost link ("Publications") the content appears both in the correct location and in the same spot on the far left of the screen, and changes color when I hover as well. It's tough to describe, so it would probably be best if you took a look: visit http://sevamandir.org/a30/index.htm in your Internet Explorer 6 browser to see for yourself. I really appreciate your help. Also I'm using a 1000px wide monitor, if there's more hijinks going on outside that space I'd like to know about that too. Here's the relevant code: in the html head: <script> sfHover = function() { var sfEls = document.getElementById("nav").getElementsByTagName("LI"); for (var i=0; i<sfEls.length; i++) { sfEls[i].onmouseover=function() { this.className+=" sfhover"; } sfEls[i].onmouseout=function() { this.className=this.className.replace(new RegExp(" sfhover\\b"), ""); } } } if (window.attachEvent) window.attachEvent("onload", sfHover); </script> text surrounding the menu - the menu is simply <ul id="nav"><li></li></ul> etc. <!--begin catchphrase--> <div style="float:left; height:27px; width:520px; margin:0px; font:16px Arial, Helvetica, sans-serif; font-weight:bold; color:#769841;"> Transforming lives through democratic &amp; participatory development </div> <?php include("menu.php"); ?> </div><!-- end header --> <!--begin main text div--> <div id="maincontent"> Relevant menu CSS: #nav, #nav ul { font:bold 11px Verdana, sans-serif; float: left; width: 980px; list-style: none; line-height: 1; background: white; font-weight: bold; padding: 0; border: solid #769841; border-width: 0; margin: 0 0 1em 0; } #nav a { display: block; width: 140px; /*this is the total width of the upper menu*/ w\idth: 120px; /*this is the width less horizontal padding */ padding: 5px 10px 5px 10px; /*horiz padding is the 2nd & 4th items here - goes Top Right Bottom Left */ color: #ffffff; background:#b6791e; text-decoration: none; } #nav a.daddy { background: url(rightarrow2.gif) center right no-repeat; } #nav li { float: left; padding: 0; width: 140px; /*this needs to be updated to match top #nav a */ background:#b6791e; } #nav li:hover, #nav li a:hover, #nav li:hover a { background:#769841; } #nav li:hover li a { background:#ffffff; color:#769841; } #nav li ul { position: absolute; left: -999em; height: auto; width: 14.4em; w\idth: 13.9em; font-weight: bold; border-width: 0.25em; /*green border around dropdown menu*/ margin: 0; } #nav li ul a { background:#ffffff; color:#769841; } #nav li li { padding-right: 1em; width: 13em; background:#ffffff; } #nav li ul a { width: 13em; w\idth: 9em; } #nav li ul ul { margin: -1.75em 0 0 14em; } #nav li:hover ul ul, #nav li:hover ul ul ul, #nav li.sfhover ul ul, #nav li.sfhover ul ul ul { left: -999em; } #nav li:hover ul, #nav li li:hover ul, #nav li li li:hover ul, #nav li.sfhover ul, #nav li li.sfhover ul, #nav li li li.sfhover ul { left: auto; } #nav li:hover, #nav li.sfhover, { background: #769841; color:#ffe400; } #nav li a:hover, #nav li li a:hover, #nav li:hover li:hover, #nav li.sfhover a:hover { background: #769841; color:#ffe400; }

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  • Trouble updating my datagrid in WPF

    - by wrigley06
    As the title indicates, I'm having trouble updating a datagrid in WPF. Basically what I'm trying to accomplish is a datagrid, that is connected to a SQL Server database, that updates automatically once a user enters information into a few textboxes and clicks a submit button. You'll notice that I have a command that joins two tables. The data from the Quote_Data table will be inserted by a different user at a later time. For now my only concern is getting the information from the textboxes and into the General_Info table, and from there into my datagrid. The code, which I'll include below compiles fine, but when I hit the submit button, nothing happens. This is the first application I've ever built working with a SQL Database so many of these concepts are new to me, which is why you'll probably look at my code and wonder what is he thinking. public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } public DataSet mds; // main data set (mds) private void Window_Loaded_1(object sender, RoutedEventArgs e) { try { string connectionString = Sqtm.Properties.Settings.Default.SqtmDbConnectionString; using (SqlConnection connection = new SqlConnection(connectionString)) { connection.Open(); //Merging tables General_Info and Quote_Data SqlCommand cmd = new SqlCommand("SELECT General_Info.Quote_ID, General_Info.Open_Quote, General_Info.Customer_Name," + "General_Info.OEM_Name, General_Info.Qty, General_Info.Quote_Num, General_Info.Fab_Drawing_Num, " + "General_Info.Rfq_Num, General_Info.Rev_Num, Quote_Data.MOA, Quote_Data.MOQ, " + "Quote_Data.Markup, Quote_Data.FOB, Quote_Data.Shipping_Method, Quote_Data.Freight, " + "Quote_Data.Vendor_Price, Unit_Price, Quote_Data.Difference, Quote_Data.Vendor_NRE_ET, " + "Quote_Data.NRE, Quote_Data.ET, Quote_Data.STI_NET, Quote_Data.Mfg_Time, Quote_Data.Delivery_Time, " + "Quote_Data.Mfg_Name, Quote_Data.Mfg_Location " + "FROM General_Info INNER JOIN dbo.Quote_Data ON General_Info.Quote_ID = Quote_Data.Quote_ID", connection); SqlDataAdapter da = new SqlDataAdapter(cmd); DataTable dt = new DataTable(); da.Fill(dt); MainGrid.ItemsSource = dt.DefaultView; mds = new DataSet(); da.Fill(mds, "General_Info"); MainGrid.DataContext = mds.Tables["General_Info"]; } } catch (Exception ex) { MessageBox.Show(ex.Message); } // renaming column names from the database so they are easier to read in the datagrid MainGrid.Columns[0].Header = "#"; MainGrid.Columns[1].Header = "Date"; MainGrid.Columns[2].Header = "Customer"; MainGrid.Columns[3].Header = "OEM"; MainGrid.Columns[4].Header = "Qty"; MainGrid.Columns[5].Header = "Quote Number"; MainGrid.Columns[6].Header = "Fab Drawing Num"; MainGrid.Columns[7].Header = "RFQ Number"; MainGrid.Columns[8].Header = "Rev Number"; MainGrid.Columns[9].Header = "MOA"; MainGrid.Columns[10].Header = "MOQ"; MainGrid.Columns[11].Header = "Markup"; MainGrid.Columns[12].Header = "FOB"; MainGrid.Columns[13].Header = "Shipping"; MainGrid.Columns[14].Header = "Freight"; MainGrid.Columns[15].Header = "Vendor Price"; MainGrid.Columns[16].Header = "Unit Price"; MainGrid.Columns[17].Header = "Difference"; MainGrid.Columns[18].Header = "Vendor NRE/ET"; MainGrid.Columns[19].Header = "NRE"; MainGrid.Columns[20].Header = "ET"; MainGrid.Columns[21].Header = "STINET"; MainGrid.Columns[22].Header = "Mfg. Time"; MainGrid.Columns[23].Header = "Delivery Time"; MainGrid.Columns[24].Header = "Manufacturer"; MainGrid.Columns[25].Header = "Mfg. Location"; } private void submitQuotebtn_Click(object sender, RoutedEventArgs e) { CustomerData newQuote = new CustomerData(); int quantity; quantity = Convert.ToInt32(quantityTxt.Text); string theDate = System.DateTime.Today.Date.ToString("d"); newQuote.OpenQuote = theDate; newQuote.CustomerName = customerNameTxt.Text; newQuote.OEMName = oemNameTxt.Text; newQuote.Qty = quantity; newQuote.QuoteNumber = quoteNumberTxt.Text; newQuote.FdNumber = fabDrawingNumberTxt.Text; newQuote.RfqNumber = rfqNumberTxt.Text; newQuote.RevNumber = revNumberTxt.Text; try { string insertConString = Sqtm.Properties.Settings.Default.SqtmDbConnectionString; using (SqlConnection insertConnection = new SqlConnection(insertConString)) { insertConnection.Open(); SqlDataAdapter adapter = new SqlDataAdapter(Sqtm.Properties.Settings.Default.SqtmDbConnectionString, insertConnection); SqlCommand updateCmd = new SqlCommand("UPDATE General_Info " + "Quote_ID = @Quote_ID, " + "Open_Quote = @Open_Quote, " + "OEM_Name = @OEM_Name, " + "Qty = @Qty, " + "Quote_Num = @Quote_Num, " + "Fab_Drawing_Num = @Fab_Drawing_Num, " + "Rfq_Num = @Rfq_Num, " + "Rev_Num = @Rev_Num " + "WHERE Quote_ID = @Quote_ID"); updateCmd.Connection = insertConnection; System.Data.SqlClient.SqlParameterCollection param = updateCmd.Parameters; // // Add new SqlParameters to the command. // param.AddWithValue("Open_Quote", newQuote.OpenQuote); param.AddWithValue("Customer_Name", newQuote.CustomerName); param.AddWithValue("OEM_Name", newQuote.OEMName); param.AddWithValue("Qty", newQuote.Qty); param.AddWithValue("Quote_Num", newQuote.QuoteNumber); param.AddWithValue("Fab_Drawing_Num", newQuote.FdNumber); param.AddWithValue("Rfq_Num", newQuote.RfqNumber); param.AddWithValue("Rev_Num", newQuote.RevNumber); adapter.UpdateCommand = updateCmd; adapter.Update(mds.Tables[0]); mds.AcceptChanges(); } } catch (Exception ex) { MessageBox.Show(ex.Message); } } Thanks in advance to anyone who can help, I really appreciate it, Andrew

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  • Resuming File Downloads in Ruby on Rails

    - by jaycode
    Hi, this has been asked here: http://stackoverflow.com/questions/1840413/resuming-file-downloads-in-ruby-on-rails-range-header-support But there was no answer. I am having similar problem, could anybody help, please? Thanks before. Alright I am getting close. Seems like I need to setup header Content-Length or Content-Range, as described here: http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.13. Haven't got an idea how. Anybody knows? Jay response.header["Content-Range"] = "20000-#{size}" send_file "#{Dir.pwd}/products/filename.zip", :type => 'application/zip', :size => (size - 20000) doesn't work

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