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  • Huge burst of memory in c# service, what could be the cause?

    - by Daniel
    I'm working on a c# service application and i have this problem where out of no where and for no obvious reason, the memory for the process will climb from 150mb to almost 2gb in about 5 seconds and then back to 150mb. But nothing in our system should be using any where near that amount of memory (so its probably a bug somewhere). It might be a tight while true loop somewhere but the cpu usage at the time was very low so i thought i'd look for other ideas. Now the weirder thing is when i compile the service for 64bit, the same massive burst will occur except it exceeded 10gb of ram (paging most of it) and it just caused lots of problems with the computer and everything running on it. After a while it shuts down but it looks like windows is still willing to give it more memory. Would you have any ideas or tools that i can use in order to find this? Yes it has lots of logging however nothing in the logs stand out as to why this is happening. I can run the service in a console app mode, so my next test was going to be running it in visual studio debugger and see if i can find anything. It only happens occasionally but usually about 10-20 minutes after startup. On 32bit mode it cleans up and continues on like normally. 64bit mode it crashes after a while and uses stupid amounts of memory. But i'm really stumped as to why this is happening!!!

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  • a macro question for c language (#define)

    - by Daniel
    I am reading source code of hoard memory allocator, and in the file of gnuwrapper.cpp, there are the following code #define CUSTOM_MALLOC(x) CUSTOM_PREFIX(malloc)(x) What's the meaning of CUSTOM_PREFIX(malloc)(x)? is CUSTOM_PREFIX a function? But as a function it didn't defined anywhere. If it's variable, then how can we use variable like var(malloc)(x)? more code: #ifndef __GNUC__ #error "This file requires the GNU compiler." #endif #include <string.h> #include <stdlib.h> #include <stdio.h> #include <malloc.h> #ifndef CUSTOM_PREFIX ==> here looks like it's a variable, so if it doesn't define, then define here. #define CUSTOM_PREFIX #endif #define CUSTOM_MALLOC(x) CUSTOM_PREFIX(malloc)(x) ===> what's the meaning of this? #define CUSTOM_FREE(x) CUSTOM_PREFIX(free)(x) #define CUSTOM_REALLOC(x,y) CUSTOM_PREFIX(realloc)(x,y) #define CUSTOM_MEMALIGN(x,y) CUSTOM_PREFIX(memalign)(x,y)

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  • URL decoding Japanese characters etc. in Java

    - by DanieL
    I have a servlet that receives some POST data. Because this data is x-www-form-urlencoded, a string such as ???? would be encoded to &#12469;&#12508;&#12486;&#12531;. How would I unencode this string back to the correct characters? I have tried using URLDecoder.decode("encoded string", "UTF-8"); but it doesn't make a difference. The reason I would like to unencode them, is because, before I display this data on a webpage, I escape & to &amp; and at the moment, it is escaping the &s in the encoded string so the characters are not showing up properly.

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  • Pulling .live() functionality out of jQuery

    - by Daniel
    I am writing a Firefox Add-On that currently is depending on jQuery for the following things: Selectors Animations A special .live("focus") hail-mary event-catching maneuver that happens to work with jQuery 1.4.2 (but not 1.4.4) jQuery isn't well suited for functioning inside XUL, and it's a miracle we've gotten this far with it. We're trying to remove the jQuery requirements, the first two are easy (animations are simple, and we can use .querySelector() instead of jQuery), but the .live has proven impossible to do on our own. I've tried reading the source code, but I haven't been able to piece it apart. What is the jQuery .live function doing? There's clearly a lot more going on than document.addEventListener("focus"/"focusin",function_to_pick_apart_events). What else is going on here?

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  • Return Empty String as NULL

    - by Daniel
    I have a listbox select and I want when the user selects null for the empty string it produces to pull the nulls from the SQL table. Here's what I have now. Blank strings return nothing because there are no empty fields in the table. SELECT * FROM dbo.Table WHERE ID = " & TextBox2.Text & " and And Field1 IN (" & Msg1 & ") How do I code that?

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  • How can I set a connection time out manually?

    - by Daniel
    I use connect(socketfd, (struct sockaddr*)&remoteAddr, sizeof(remoteAddr)) to connect my iPhone to a computer (over WIFI) and it works fine so far. However if the computer is out of reach, my iPhone tries to establish a connection for more than a min. Is there a posibility to set the time manually out to a new value, e.g. 15 sec?

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  • How to make a remove frame script in JavaScript?

    - by Daniel
    I am making websites I refer to from my site load up in a frame (similar to google images). But I also want to give users the ability to break out of that frame. Like with google image's "Remove Frame" link at the bottom right corner of their frame. How can I do this possiblyusing Javascript?

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  • How do i use Form.ShowDialog?

    - by Daniel Lip
    private void button2_Click(object sender, EventArgs e) { ChangeLink cl = new ChangeLink(); // Show testDialog as a modal dialog and determine if DialogResult = OK. if (cl.ShowDialog() == DialogResult.OK) { // Read the contents of testDialog's TextBox. // cl.AcceptButton.DialogResult = DialogResult.OK; this.label4.Text = cl.textBox1Text; } else { this.label4.Text = "Cancelled"; } cl.Dispose(); } When i click the button i see the new Form and the textBox1 in the new Form and i can type in the textBox1 something but i dont see anywhere an OK or CANCEL buttons. Should i add them manualy in the new Form designer ? And how to use them then ? This is the code in my new Form what i wanted to do is to type something in the new Form textBox1 and pass the text in the textBox1 to Form1 label4. using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace GatherLinks { public partial class ChangeLink : Form { public ChangeLink() { InitializeComponent(); } public string textBox1Text { get { return textBox1Text = textBox1.Text; } set { } } } } So where are the OK and CANCEL buttons of the Form.ShowDialog ?

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  • Google Analytics - Goal Funnel Steps

    - by Daniel
    Is there a way to test the url you're entering in a step, to see if Google Analytics will recognize it? What I'd like to do is provide some web page or some web service with a URL, and get a pass or fail. It passes if Google Analytics recognizes a page hit to the url. Let me give some context. We've been having issues with our goal funnel steps in Google Analytics. The instructions on adding steps say not to use the domain. e.g. DO NOT use : http://www.mysite.com/step1.html INSTEAD use: /step1.html Our custom CRM uses friendly urls and as a result GA is having a hard time picking up on them. So we've experimented with changing around url we've placed in the step, however we've got to wait a day to see if the new url we've provided is going to work! Hence why we're looking for something quicker.

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  • Applying jQuery attr value to new DOM elements (result of AJAX query)

    - by Daniel
    Hello everyone, I have a div on a page whose contents is replaced by an AJAX request when the user selects an option from a select list. When the page loads, I issue a command to disable the autocomplete feature for all of the pages text input elements: //Stop that pesky browser autocomplete $('input[type=text]').attr("autocomplete", "off"); However, when new elements appear in the div after an AJAX call, this line of code does not reference them because they were not part of the original DOM (when the page was loaded). I have tried appending the autocomplete line to the end of the post function: //AJAX Post request that changes the fields in the address div for each different country $("div#address select#country").live("change", function() { $.post("<?php print($_SERVER['PHP_SELF']); ?>", { country: $(this).val() }, function(data) { $('div#address').html(data); }, "text"); $('div#address input[type=text]').attr("autocomplete", "off"); }); But for some reason it does not work and the autocomplete pops up when text is entered into any of the address fields. As far as I am aware I cannot use .live() to select the input elements because changing an attribute is not classed as an event. So can anyone advise me how to modify the attributes of a newly created DOM element?

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  • As a Web Developer, how complicated is your average job compared to this?

    - by Daniel S
    I'm 16 years old, and I've recently started to do freelance jobs. I've been playing with PHP since I was 12 and think that I can code reasonably well. So far, I've created a library for fetching info from LinkedIn profiles and some WordPress plugins. However, right now this client wants me to convert an HTML template into a WordPress theme for use as a website. I feel this is a tad easy. As professional web programmers, are most assignments harder than this?

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  • What data (if any) persists across web-requests in Ruby on Rails?

    - by Daniel Beardsley
    I decided to use the singleton design pattern while creating a view helper class. This got me thinking; will the singleton instance survive across requests? This led to another question, Which variables (if any) survive across web requests and does that change depending on deployment? (Fastcgi, Mongrel, Passenger, ...) I know that Controller instance variables aren't persisted. I know Constants are persisted (or reloaded?). But I don't know about class variables, instance variables on a class, Eigenclasses, ...

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  • possible to change a script when it is running?

    - by Daniel
    Suppose a script has 1000 lines, and the 10 line has a command takes a long time to run and when I find it is running line 10, I find I need to change line 100, is it possible to do that without stop the script first? We can also stop a process by using command pstop, but I don't know how to let the process to re-read the script and continue to run from where it paused.

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  • Prev and next button

    - by daniel
    My website has previous and next buttons. When the page loads id like the previous button to be invisible.(on the first panel) After the user clicks the next button (to go to 2nd panel), id like the previous button to appear. Is there some javascript that will do this?

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  • asp.net sharepoint development

    - by Daniel
    Hi all, Im my current project we need to interface with sharepoint to store and retrieve various documents. This has previously been done by referencing the Microsoft.Sharepoint dlls directly and going from there. As I don't know a lot about sharepoint yet I have been doing some research. Most of the examples I find actually refer to using the Sharepoint web services themselves (the various vti_bin ones shown in http://www.sharepointmonitor.com/2007/01/sharepoint-web-service/). I cant seem to find the differences in approaches. This current project was written a few years ago so maybe the web services weren't available then? Cheers

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  • Where is the 'indeterminate type'?

    - by Daniel
    I'm defining the following type extension: type System.Reflection.MemberInfo with member x.GetAttribute<'T when 'T :> Attribute>(required, inherit') = match required, Attribute.GetCustomAttribute(x, typeof<'T>, inherit') with | true, null -> invalidOp (sprintf "Missing required attribute: %s" typeof<'T>.FullName) | _, attr -> attr :> 'T The last match expression (attr :> 'T) gives the error: The static coercion from Attribute to 'T involves an indeterminate type based on information prior to this program point. Static coercions are not allowed on some types. Further type annotations are needed. I've tried annotating the function return type, but got the same result. I would hate to change this to a dynamic cast. Is there a way to make the static cast work?

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  • nginx - how do I get rewrite directives to execute before index directives?

    - by Daniel Hai
    I'm trying a simple internal rewrite with nginx to navigate to a sub-directory depending on the user_agent -- mobile browsers go to /mobile, otherwise they go to /www however it seems that when I rewrite these urls, the index directive is processed before the rewrites, so I end up getting 403 forbidden. # TEST FOR INDEX index index.php # TEST PHONES if ($http_user_agent ~* '(iPhone|iPod)') { rewrite ^(.*)$ /mobile$1 break; } # OTHERWISE WE ARE DONE rewrite ^(.*)$ /www$1 break; when I turn off the re-writes and hit the hostname (http://www.somehost.com/) the index is displayed correctly. When they are on, I have to explicitly navigate to somehost.com/index.php to get the script to run ... Do I have to explicity test for directories, and then re-write to an index.php file, or is there a simpler solution?

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  • Count of Sums possibly using group_by

    - by Daniel Johnson
    Say you have a user table and an order table which references user (user has_many orders) and contains an item count field. How could you efficiently ask "how many uses ordered how many items?" That is, to generate something along the lines of: Number of users | sum of items ------------------------------- 5 users | 1 item 4 users | 5 items 1 user | 7 items Thanks in advance.

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  • Code to Display Stacked Button

    - by Daniel
    have the tweetmeme button on my site (http://SweatingTheBigStuff.com) and I want to add a facebook button BELOW it. Right now the tweetmeme settings show: float: right; margin-left: 10px; What's the best Facebook plugin for this and what settings do I need? I think the Simple Facebook Share Button should be good but I'm not sure the bit of code I should put to move it below the tweetmeme button.

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