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  • Get number of times in loop over Hash object

    - by Matt Huggins
    I have an object of type Hash that I want to loop over via hash.each do |key, value|. I would like to get the number of times I've been through the loop starting at 1. Is there a method similar to each that provides this (while still providing the hash key/value data), or do I need to create another counter variable to increment within the loop?

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  • Winsock WSAAsyncSelect sending without an infinite buffer

    - by Xexr
    Hi, This is more of a design question than a specific code question, I'm sure I am missing the obvious, I just need another set of eyes. I am writing a multi-client server based on WSAAsyncSelect, each connection is made into an object of a connection class I have written which contains associated settings and buffers etc. My question concerns FD_WRITE, I understand how it operates: One FD_WRITE is sent immediately after a connection is established. Thereafter, you should send until WSAEWOULDBLOCK is received at which point you store what is left to send in a buffer, and wait to be told that it is ok to send again. This is where I have a problem, how large do I make this holding buffer within each connections object? The amount of time until a new FD_WRITE is received is unknown, I could be attempting to send a lot of stuff during this period, all the time adding to my outgoing buffer. If I make the buffer dynamic, memory usage could spiral out of control if for whatever reason, I am unable to send() and reduce the buffer. So my question is how do you generally handle this situation? Note I am not talking about the network buffer itself which winsock uses, but one of my own creation used to "queue" up sends. Hope I explained that well enough, thanks all!

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  • How to commit inside a CURSOR Loop?

    - by user320587
    Hi, I am trying to see if its possible to perform Update within a cursor loop and this updated data gets reflected during the second iteration in the loop. DECLARE cur CURSOR FOR SELECT [Product], [Customer], [Date], [Event] FROM MyTable WHERE [Event] IS NULL OPEN cur FETCH NEXT INTO @Product, @Customer, @Date, @Event WHILE @@FETCH_STATUS = 0 BEGIN SELECT * FROM MyTable WHERE [Event] = 'No Event' AND [Date] < @DATE -- Now I update my Event value to 'No Event' for records whose date is less than @Date UPDATE MyTable SET [Event] = 'No Event' WHERE [Product] = @Product AND [Customer] = @Customer AND [Date] < @DATE FETCH NEXT INTO @Product, @Customer, @Date, @Event END CLOSE cur DEALLOCATE cur Assume when the sql executes the Event column is NULL for all records In the above sql, I am doing a select inside the cursor loop to query MyTable where Event value is 'No Event' but the query returns no value even though I am doing an update in the next line. So, I am thinking if it is even possible to update a table and the updated data get reflected in the next iteration of the cursor loop. Thanks for any help, Javid

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  • Synergy: avoid single machine loop when client is not connected

    - by petobens
    In order to loop between my screens I have the following section in my synergy.sgc file: section: links Pedro-Acer: right = pedro-lubuntu left = pedro-lubuntu pedro-lubuntu: left = Pedro-Acer right = Pedro-Acer end With those settings When the client disconnects the server screen wraps around itself as seen in the image below. I don't want this behavior. The only reason I set the config file to loop between my screens is because I want to have a single key to switch between them: keystroke(alt+`) = switchInDirection(right) If there is way to have a single key for switching in both directions without having looping screens then that would also solve my problem.

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  • Connecting server to more than one switch.

    - by Jake
    I have 3 switches, one NEATGEAR GS748T and two JGS524. Initially I wanted to connect them in a triangle loop, but later suspect that the JG524 does not have spanning tree support. Now I have a Dell R710 with 2 NIC at the back. If I connect the server in between the two JGS524, which both in turn connect to the GS748T, will that consitute a loop? According to my limited understanding, with 2 NICs there will be 2 IPs for the server. Will the file server even work or not? Theoretically speaking, will this configuration increase the access speeds for clients? Thanks.

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  • How to kill all screens that has been up longer then 3 weeks?

    - by Darkmage
    Im creating a script that i am executing every night at 03.00 that will kill all screens that has been running longer than 3 weeks. anyone done anything similar that can help? If you got a script or suggestion to a better method please help by posting :) I was thinking maybe somthing like this. First do a dump to textfile ps -U username -ef | grep SCREEN dump.txt then do a loop running through all lines of dump.txt with a regex and putting pid of the prosseses with STIME 3weeksago in a array. then do a kill loop on the array result.

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  • Infinite loop in haskell? (newbie)

    - by Mike
    I'm just learning Haskell. I thought this would produce a factorial function... (within ghci) Prelude let ft 0 = 1 Prelude let ft n = n * ft (n - 1) Prelude ft 5 (hangs indefinitely, until ^C). Can someone point me in the right direction? Thanks!

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  • vba: a forever loop

    - by I__
    Sub something(tecan) On Error Resume Next Dim arr As New Collection, a Dim aFirstArray() As Variant Dim i As Long aFirstArray() = Array(Dir(tecan & "*.ESY", vbNormal)) aFirstArray(0) = Mid(aFirstArray(0), 1, 4) Do While Dir <> "" ReDim Preserve aFirstArray(UBound(aFirstArray) + 1) aFirstArray(UBound(aFirstArray)) = Mid(Dir, 1, 4) Loop On Error Resume Next For Each a In aFirstArray arr.Add a, a Next For i = 1 To arr.Count Cells(i, 1) = arr(i) 'open_esy (tecan & arr(i) & "*") Next Erase aFirstArray For i = 1 To arr.Count arr.Remove i Next i here is how i call this sub: something (tecan1) something (tecan2) on the first call it works and does what it is supposed to but on the second call it gets stuck in this loop: Do While Dir <> "" ReDim Preserve aFirstArray(UBound(aFirstArray) + 1) aFirstArray(UBound(aFirstArray)) = Mid(Dir, 1, 4) Loop why does it get stuck in the loop?

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  • How to kill all screens that has been up longer then 4 weeks?

    - by Darkmage
    Im creating a script that i am executing every night at 03.00 that will kill all screens that has been running longer than 3 weeks. anyone done anything similar that can help? If you got a script or suggestion to a better method please help by posting :) I was thinking maybe somthing like this. First do a dump to textfile ps -U username -ef | grep SCREEN dump.txt then do a loop running through all lines of dump.txt with a regex and putting pid of the prosseses with STIME 3weeksago in a array. then do a kill loop on the array result.

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  • Flex Tree with infinite parents and children

    - by Tempname
    I am working on a tree component and I am having a bit of the issue with populating the data-provider for this tree. The data that I get back from my database is a simple array of value objects. Each value object has 2 properties. ObjectID and ParentID. For parents the ParentID is null and for children the ParentID is the ObjectID of the parent. Any help with this is greatly appreciated. Essentially the tree should look something like this: Parent1 Child1 Child1 Child2 Child1 Child2 Parent2 Child1 Child2 Child3 Child1 This is the current code that I am testing with: public function setDataProvider(data:Array):void { var tree:Array = new Array(); for(var i:Number = 0; i < data.length; i++) { // do the top level array if(!data[i].parentID) { tree.push(data[i], getChildren(data[i].objectID, data)); } } function getChildren(objectID:Number, data:Array):Array { var childArr:Array = new Array(); for(var k:Number = 0; k < data.length; k++) { if(data[k].parentID == objectID) { childArr.push(data[k]); //getChildren(data[k].objectID, data); } } return childArr; } trace(ObjectUtil.toString(tree)); } Here is a cross section of my data: ObjectID ParentID 1 NULL 10 NULL 8 NULL 6 NULL 4 6 3 6 9 6 2 6 11 7 7 8 5 8

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  • Infinite Refresh Loop in Firefox 3.0

    - by Martin Gordon
    I'm having a strange issue with my Javascript in Firefox 3.0.x. In Firefox 3.0.12, the page constantly reloads as soon as the list body is loaded. Neither Firefox 3.5, Safari 4 nor Chrome 5 (all on Mac) experience this issue. EDIT: I've created an isolated example rather than pulling this from my existing code. test.js function welcomeIndexOnLoad() { $("#options a").live('click', function () { optionClicked($(this), "get_list_body.html"); return false; }); $(document).ready(function() { optionClicked(null, "get_list_body.html"); }); } function optionClicked(sender, URL) { queryString = ""; if (sender != null) { queryString = $(sender).attr("rel"); } $("#list_body").load(URL + "?" + queryString, function(resp, status, AJAXReq) { console.log(resp); console.log("" + status); location.hash = queryString; }); }? test.html <html> <head> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.js"></script> <script type="text/javascript" src="test.js"></script> <script> welcomeIndexOnLoad(); </script> </head> <body> <div id="container"> Outside of list body. <div id="list_body"> </div> </div> </body> </html> get_list_body.html <h3> <div id="options"> <a href="#" rel="change_list">Change List</a> </div> <ul> <li>li</li> </ul> jQuery line 5252 (an xhr.send() call) shows up in the console as soon as the page reloads: xhr.send( type === "POST" || type === "PUT" || type === "DELETE" ? s.data : null );

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  • htaccess: how to prevent infinite subdirectories?

    - by Vincent Isles
    My .htaccess at the root directory contains this: Options -MultiViews +FollowSymlinks -Indexes ErrorDocument 404 /404.htm RewriteEngine On RewriteBase / followed by a bunch of RewriteRules. The .htaccess at the /forum subdirectory contains this: RewriteEngine On RewriteBase /forum RewriteRule ^index.html$ index.php [L,NE] RewriteRule ^(.*)-t-([0-9]+).html(.*)$ showthread.php?tid=$2$3 [QSA,L] RewriteRule ^(.*)-t-([0-9]+)-([0-9]+).html$ showthread.php?tid=$2&page=$3 [QSA,L] followed by other rules mapping SEO-friendly URLs to the true URLs. mydomain.com/forum/a-thread-t-1.html returns the page showthread.php?tid=1 but so does mydomain.com/forum/forum/a-thread-t-1.html, mydomain.com/forum/forum/forum/a-thread-t-1.html and so on. I don't want this behavior - I want pages accessed as /forum/forum/* to return a 404. Any hint on where I had been wrong?

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  • Jquery infinite scroll - with div not scrollbar of body

    - by Thomas
    suppose i have div and i want to fetch data and push data into that div. when user will drag scroll bar of div then next set of data will be fetch and pushed into div. how to detect when scroll bar of div drag to end by jquery. i don't want to use any plugin rather i need jquery code. here is the sample link i like it http://www.stevefenton.co.uk/cmsfiles/assets/File/infinitescroller.html but it used plugin. please help me with sample code for detecting scroll bar drag to end of div. thanks

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  • Infinite queue for build while TFS Preview publishing on Azure Cloud Service

    - by dygo
    I've created Cloud Service and linked TFS Preview Project for CI deployments. I've chosen Manual mode for triggering the builds. The previously queued builds were successfully completed and deployed. And the website based on this Cloud Service was running fine. Waiting in the queue was no more than 3-5 seconds. Now when I click - "Queue New Build" - the new build item is created in the queue but it never runs. I can successfully Publish project onto Azure Cloud service from VS2012 though. What could be the most common reasons for this?

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  • Infinite throwing in constructor

    - by Mikulas Dite
    What happens to a php script which goes like this? class FooException extends Exception { public function __construct() { throw new FooException; } } It's probably same as while (TRUE) { new Exception(); } It simply time outs when execution time is exceeded, or fails with some fatal error?

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  • Jquery help needed- infinite loop?

    - by ilkin
    Hi all, i have a problem with this code: var par = []; $('a[name]').each(function() { if (($(this).attr('name')).indexOf("searchword") == -1) { par.push($(this).attr('name')); $('.content').empty(); for (var i = 0; i < par.length; i++) { $(".content").append('<a id="par" href="#' + par[i] + '">' + par[i] + '</a><br />'); } } }); It causes ie and firefox to popup the warning window "Stop running this script". But it happens only when there is a very very large amount of data on page. Any ideas how to fix it?

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  • Usability of an endless/infinite scroll

    - by Anton Gogolev
    What are pros and cons of this technique (see Softfolio for an example). Two things I personally thought of are as follows: Impossible to tell someone where an item of interest is located (like, you probably won't say "324-th row, second column") Broken navigation when you return back to an infinitely scrolled page. What else can you think of? And what do you personally think of this approach in general. Would you use this in you projects?

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  • How to avoid Modal Storyboard infinite loop

    - by misthills
    I've written a number of iOS applications a year ago on an old version of Xcode. I've just started a new project and discovered the storyboard feature in the latest Xcode. It turns out this is perfect for the application I am writing as it consists of ~30 interlinked screens. My question is, how do I structure my storyboard and segues to allow my application to follow a circular path through my screens. I have seen a number of examples that simply segue screen 1 to screen 2 and then screen 2 to screen 1 using the modal option. This clearly works but when I debug an application built this way, it instantiates a new instance of each screen (view controller) for every segue performed. In the diagram below (apologies, I drew a nice picture but due to my newbie status, was not able to post it), how do I go from screen 1 to screen 2 to screen 3 and back to original screen 1 without creating a new instance? // Screen 1 --> Screen 2 --> Screen3 // ^ | // | | // +-------------------------+

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  • How to make sure the value is reset in foreach loop in PHP

    - by kwokwai
    Hi all, I was writing a simple PHP page and a few foreach loops were used. Here are the scripts: $arrs = array("a", "b", "c"); foreach ($arrs as $arr) { if(substr($arr,0,1)=="b") { echo "This is b"; } } // ends of first foreach loop and I didn't use ifelse here And when this foreach ends, I wrote another foreach loop in which all the values in the foreach loop was the same as previous foreach. foreach ($arrs as $arr) { if(substr($arr,0,1)=="c") { echo "This is c"; } } I am not sure if it is a good practice to have two foreach loops with same values and keys. Will the values get overwritten in the first foreach loop?

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