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  • How-to dispose a waithandle correctly

    - by TomTom
    Hello, I'm doing some multi-threading and use AutoResetEvents and ManualResetEvents do control my main - loop. When "destryoing" the threads I also have to dispose these signals, that's clear. But I saw different ways how to dispose Waithandles, and I'm not sure which one is correct: Version 1 if (disposing) { this.threadExitEvent.SafeWaitHandle.Dispose(); this.threadExitEvent.Close(); this.threadExitEvent = null; .... } Version 2 if (disposing) { this.threadExitEvent.Close(); this.threadExitEvent = null; .... } Version 3 if (disposing) { this.threadExitEvent.Close(); .... }

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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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  • How to open email by x-gm-msgid in Gmail with Javascript

    - by Rui J
    I'm writing an extension which surfaces links to gmail messages. As the UI loads right in Gmail, I should be able to click on one of these links and have Gmail load it (without refreshing). I have "x-gm-msgid" available and theoretically, I should just be able to navigate to "https://mail.google.com/mail/u/0/#inbox/[x-gm-msgid]". I've tried using location.hash = "#inbox/[x-gm-msgid]" I've tried using history.pushState(null, null, "/mail/u/0/#inbox/[x-gm-msgid]") Neither of which works. Gmail just thwarts any attempt to change the URL (unless it is done via user interaction) Any thoughts on how to get around this restriction?

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  • how can i get proper Uri of a particular contact in android 2.1

    - by Rishabh
    I have written an application and added 2 contacts on emulator, but i am not able to update their names on android 2.1, code is working on android 1.6 platform with the following code. ContentValues contactValues = new ContentValues(); contactValues.put(Contacts.People.NAME, firstName+" "+lastName); getContentResolver().update(UpdateContactUri, contactValues, null, null); In android 1.6 i am getting Uri for those two contacts are "content:// contacts/people/1" and "content://contacts/people/2". but in 2.1 I am getting these values are "content://contacts/people/8" and "content://contacts/people/9" and while updating its giving "java.IllegalArgumentException, Empty values" exception. When i tried to put a static Uri like "content://contacts/people/1", code was debugged sucessfully but contact was not updated. How can i resolve it, why i am not getting uri like 1.6 platform ? Thanks in advance...

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  • Deriving from a component and implementing IDisposable properly

    - by PaulH
    I have a Visual Studio 2008 C# .NET 2.0 CF project with an abstract class derived from Component. From that class, I derive several concrete classes (as in my example below). But, when I go to exit my Form, though the Form's Dispose() member is called and components.Dispose() is called, my components are never disposed. Can anybody suggest how I can fix this design? public abstract class SomeDisposableComponentBase : Component { private System.ComponentModel.IContainer components; protected SomeDisposableComponentBase() { Initializecomponent(); } protected SomeDisposableComponentBase(IContainer container) { container.Add(this); Initializecomponent(); } private void InitializeComponent() { components = new System.ComponentModel.Container(); } protected abstract void Foo(); #region IDisposable Members bool disposed_; /// Warning 60 CA1063 : Microsoft.Design : Ensure that 'SomeDisposableComponentBase.Dispose()' is declared as public and sealed.* public void Dispose() { // never called Dispose(true); GC.SuppressFinalize(this); } protected virtual void Dispose(bool disposing) { // never called if (!disposed_) { if (disposing && (components != null)) { components.Dispose(); } disposed_ = true; } base.Dispose(disposing); } #endregion } public SomeDisposableComponent : SomeDisposableComponentBase { public SomeDisposableComponent() : base() { } public SomeDisposableComponent(IContainer container) : base(container) { } protected override void Foo() { // Do something... } protected override void Dispose(bool disposing) { // never called base.Dispose(disposing); } } public partial class my_form : Form { private SomeDisposableComponentBase d_; public my_form() { InitializeComponent(); if (null == components) components = new System.ComponentModel.Container(); d_ = new SomeDisposableComponent(components); } /// exit button clicked private void Exit_Click(object sender, EventArgs e) { this.Close(); } /// from the my_form.designer.cs protected override void Dispose(bool disposing) { if (disposing && (components != null)) { // this function is executed as expected when the form is closed components.Dispose(); } base.Dispose(disposing); } } *I note that FX-Cop is giving me a hint here. But, if I try to declare that function as sealed, I get the error: error CS0238: 'SomeDisposableComponentBase.Dispose()' cannot be sealed because it is not an override Declaring that function an override leads to: 'SomeDisposableComponentBase.Dispose()': cannot override inherited member 'System.ComponentModel.Component.Dispose()' because it is not marked virtual, abstract, or override Thanks, PaulH

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  • In WebKitGtk+, how can I access parameters in an event listener?

    - by Matthew
    Here is an example in javascript of what I want to do: function handleDragStart(e) { e.dataTransfer.effectAllowed = 'move'; e.dataTransfer.setData('text/plain', 'some data'); } var dragSource = document.querySelector('#dragSource'); dragSource.addEventListener('dragstart', handleDragStart, false, null); But I am having trouble translating this to a GLib-based system. Here is an example in Vala: void on_dragstart(EventTarget event_target) { // How can I access the equivalent of e.dataTransfer? } WebKit.WebView web_view = ... WebKit.DOM.Document document = web_view.get_dom_document(); WebKit.DOM.Element drag_source = document.query_selector('#dragSource'); drag_source.add_event_listener("dragstart", (Callback) on_dragstart, false, null); While I am using Vala, an answer in any language interacting with WebKitGtk+ directly would be helpful.

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  • Can a partition table be edited from a LiveUSB of another architecture?

    - by Eliran Malka
    My purpose is to re-partition a dual-boot machine (running Ubuntu 13.04 / Windows 7), i.e. the current table is as follows: ----------------------------------------------------------- | | extended partition | | | windows |--------------------------------| recovery | | (NTFS) | swap | filesystem | (NTFS) | | | (swap) | (ext4) | | ----------------------------------------------------------- and I want to create an additional ext4 partition under the extended partition, and mount those (the one I created and the 'filesystem' partition) to root and home (/ and /home), such as the new layout will be: ----------------------------------------------------------- | | extended partition | | | windows |--------------------------------| recovery | | (NTFS) | swap | root | home | (NTFS) | | | (swap) | (ext4) | (ext4) | | ----------------------------------------------------------- As the installations on the system and on my Live USB differ in architecture, I want to know: Is it safe to use a 64bit GParted from a Live USB for partitioning a 32bit installation?

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  • AJAX Issue, Works in all browsers except IE

    - by Nik
    Alright, this code works in Chrome and FF, but not IE (which is to be expected). Does anyone see anything wrong with this code that would render it useless in IE? var waittime=400; chatmsg = document.getElementById("chatmsg"); room = document.getElementById("roomid").value; sessid = document.getElementById("sessid").value; chatmsg.focus() document.getElementById("chatwindow").innerHTML = "loading..."; document.getElementById("userwindow").innerHTML = "Loading User List..."; var xmlhttp = false; var xmlhttp2 = false; var xmlhttp3 = false; function ajax_read() { if(window.XMLHttpRequest){ xmlhttp=new XMLHttpRequest(); if(xmlhttp.overrideMimeType){ xmlhttp.overrideMimeType('text/xml'); } } else if(window.ActiveXObject){ try{ xmlhttp=new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) { try{ xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } catch(e){ } } } if(!xmlhttp) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } xmlhttp.onreadystatechange = function() { if (xmlhttp.readyState==4) { document.getElementById("chatwindow").innerHTML = xmlhttp.responseText; setTimeout("ajax_read()", waittime); } } xmlhttp.open('GET','methods.php?method=r&room=' + room +'',true); xmlhttp.send(null); } function user_read() { if(window.XMLHttpRequest){ xmlhttp3=new XMLHttpRequest(); if(xmlhttp3.overrideMimeType){ xmlhttp3.overrideMimeType('text/xml'); } } else if(window.ActiveXObject){ try{ xmlhttp3=new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) { try{ xmlhttp3=new ActiveXObject("Microsoft.XMLHTTP"); } catch(e){ } } } if(!xmlhttp3) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } xmlhttp3.onreadystatechange = function() { if (xmlhttp3.readyState==4) { document.getElementById("userwindow").innerHTML = xmlhttp3.responseText; setTimeout("user_read()", 10000); } } xmlhttp3.open('GET','methods.php?method=u&room=' + room +'',true); xmlhttp3.send(null); } function ajax_write(url){ if(window.XMLHttpRequest){ xmlhttp2=new XMLHttpRequest(); if(xmlhttp2.overrideMimeType){ xmlhttp2.overrideMimeType('text/xml'); } } else if(window.ActiveXObject){ try{ xmlhttp2=new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) { try{ xmlhttp2=new ActiveXObject("Microsoft.XMLHTTP"); } catch(e){ } } } if(!xmlhttp2) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } xmlhttp2.open('GET',url,true); xmlhttp2.send(null); } function submit_msg(){ nick = document.getElementById("chatnick").value; msg = document.getElementById("chatmsg").value; document.getElementById("chatmsg").value = ""; ajax_write("methods.php?method=w&m=" + msg + "&n=" + nick + "&room=" + room + "&sessid=" + sessid + ""); } function keyup(arg1) { if (arg1 == 13) submit_msg(); } var intUpdate = setTimeout("ajax_read()", waittime); var intUpdate = setTimeout("user_read()", 0);

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  • How do I go from a simple html5 tic tac toe game to an online 2 player game?

    - by phi1o
    I've been working on an online 2 player Tic Tac Toe solution for blackberries. both old and new. And so far I have html5 code that has a 3 x 3 layout that switches between x and o for the game mechanics. I believe I'm still missing a check for win function but my question is about the server side of this game. I'm not sure how to go about learning what exactly I want. how do you take what I have now, and make this into a functioning online game? I've been told WAMP is a good solution, as well as IIS. and its all really over my head, so i'm hoping to get a little more clarity as far as what I should focus on to bring this game to life.

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  • How can I get to the value of my WPF UserControl DependencyProperty from UI Automation Framework?

    - by Surfbutler
    Hi, I'm having trouble getting access to my WPF UserControl DependencyProperty values through the UI Automation Framework. I've used James McCaffreys article in MSDN as a starting point (Automating IO Tests in WPF Applications, MSDN March 2009), but I can only see properties etc in standard controls such as buttons. I'm assuming there's some Automation interface I have to implement on my UserControl, but what and how? I can already see my control fine e.g. in UISpy, but I can't see the dependency properties within it. Here's what my usercontrol looks like currently in UISpy: AutomationElement General Accessibility AccessKey: "" AcceleratorKey: "" IsKeyboardFocusable: "False" LabeledBy: "(null)" HelpText: "Switches 48v Phantom Power On/Off (for Mic inputs only)." State IsEnabled: "True" HasKeyboardFocus: "False" Identification ClassName: "" ControlType: "ControlType.Custom" Culture: "(null)" AutomationId: "V48SwL" LocalizedControlType: "custom" Name: "" ProcessId: "5684 (VirtualSix)" RuntimeId: "7 5684 40026340" IsPassword: "False" IsControlElement: "True" IsContentElement: "True" Visibility BoundingRectangle: "(140, 457, 31, 20)" ClickablePoint: "155,467" IsOffscreen: "False" ControlPatterns

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  • How do I find the top N batters per year?

    - by Drew Stephens
    I'm playing around with the Lahman Baseball Database in a MySQL instance. I want to find the players who topped home runs (HR) for each year. The Batting table has the following (relevant parts) of its schema: +-----------+----------------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-----------+----------------------+------+-----+---------+-------+ | playerID | varchar(9) | NO | PRI | | | | yearID | smallint(4) unsigned | NO | PRI | 0 | | | HR | smallint(3) unsigned | YES | | NULL | | +-----------+----------------------+------+-----+---------+-------+ For each year, every player has an entry (between hundreds and 12k per year, going back to 1871). Getting the top N hitters for a single year is easy: SELECT playerID,yearID,HR FROM Batting WHERE yearID=2009 ORDER BY HR DESC LIMIT 3; +-----------+--------+------+ | playerID | yearID | HR | +-----------+--------+------+ | pujolal01 | 2009 | 47 | | fieldpr01 | 2009 | 46 | | howarry01 | 2009 | 45 | +-----------+--------+------+ But I'm interested in finding the top 3 from every year. I've found solutions like this, describing how to select the top from a category and I've tried to apply it to my problem, only to end up with a query that never returns: SELECT b.yearID, b.playerID, b.HR FROM Batting AS b LEFT JOIN Batting b2 ON (b.yearID=b2.yearID AND b.HR <= b2.HR) GROUP BY b.yearID HAVING COUNT(*) <= 3; Where have I gone wrong?

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  • Scan from last instance of character to end of string using NSScanner

    - by Virgil Disgr4ce
    Given a string such as: "new/path - path/path/03 - filename.ext", how can I use NSScanner (or any other approach) to return the substring from the last "/" to the end of the string, i.e., "03 - filename.ext"? The code I've been trying to start with is: while ([fileScanner isAtEnd] == NO){ slashPresent = [fileScanner scanUpToString:@"/" intoString:NULL]; if (slashPresent == YES) { [fileScanner scanString:@"/" intoString:NULL]; lastPosition = [fileScanner scanLocation]; } NSLog(@"fileScanner position: %d", [fileScanner scanLocation]); NSLog(@"lastPosition: %d", lastPosition); } ...and this results in a seg fault after scanning to the end of the string! I'm not sure why this isn't working. Ideas? Thanks in advance!

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  • Reverse a singly linked list

    - by Madhan
    I would be wondered if there exists some logic to reverse the linked list using only two pointers. The following is used to reverse the single linked list using three pointers namely p, q, r: struct node { int data; struct node *link; }; void reverse() { struct node *p = first, *q = NULL, *r; while (p != NULL) { r = q; q = p; p = p->link; q->link = r; } q = first; } Is there any other alternate to reverse the linked list? what would be the best logic to reverse a singly linked list, in terms of time complexity?

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  • Java Convert ColorSpace of BufferedImage to CS_GRAY without using ConvertColorOp

    - by gmatt
    I know its possible to convert an image to CS_GRAY using public static BufferedImage getGrayBufferedImage(BufferedImage image) { BufferedImageOp op = new ColorConvertOp(ColorSpace .getInstance(ColorSpace.CS_GRAY), null); BufferedImage sourceImgGray = op.filter(image, null); return sourceImgGray; } however, this is a chokepoint of my entire program. I need to do this often, on 800x600 pixel images and takes about 200-300ms for this operation to complete, on average. I know I can do this alot faster by using one for loop to loop through the image data and set it right away. The code above on the other hand constructs a brand new 800x600 BufferedImage that is gray scale. I would rather just transform the image I pass in. Does any one know how to do this with a for loop and given that the image is RGB color space?

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  • Blogger Dynamic template sometimes broken

    - by ber4444
    In all browsers (IE, Chrome, etc.) in my office and in all Blogger blogs using the dynamic template, I'm having this strange problem: No menu on the right side (except for the Subscribe button - other buttons are missing) plus no layout selection bar (top row). This problem is occasional, not happening reliably; any ideas? Update: whenever I get the menu problem with dynamic templates, I also seem to get a broken page (in Chrome, IE, etc) with simple templates - see second screenshot. Does anyone having this issue?

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  • CMS without templates

    - by Mark
    I am looking for a CMS where I can layout the page from scratch using HTML/PHP/CSS and simply enter code such as:- FOR EACH (listOfArticles) SORT mostRecent CATEGORY news LIMIT 5 <div class="articleTitle">{title}</div> <div class="arcielBody">{body}</div> END to get a list of the five most recent articles of a certain category in the relevant place. Does such a thing exist anymore? Unless my mind is playing tricks on me, the CMSs of five or ten years ago had this approach. I am thinking of MovableType and the now defunct CityDesk. It seems to me that CMSs these days have a 'templates first' approach. I.E. you must always choose a template before doing anything - which I find really painful. Learning how to design these structured templates also seems overly painful. So can anyone help me in my quest? Thank you, Mark

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  • When i close window cookies are destroying in flex

    - by praveen
    Hi, I am using external interface to store cookies in client side of application. Like I have created a cookie in html and i am using those methods in flex using External Interface. I am saving a username in cookie when I re use cookie is displaying, I have deployed in server and i ran like http://localhost/[Path]/index.html.in this html I am embedded swf file and I have saved cookie in html JavaScript, now if I open this url cookie is saving if I open a new window what ever the cookies are a raised and it is loading from start. for cookies saving i am using this code in flex:`package Name{ import flash.external.ExternalInterface; /** * The Cookie class provides a simple way to create or access * cookies in the embedding HTML document of the application. * */ public class Cookies { /** * Flag if the class was properly initialized. */ private static var _initialized:Boolean = false; /** * Name of the cookie. */ private var _name:String; /** * Contents of the cookie. */ private var _value:String; /** * Flag indicating if a cookie was just created. It is <code>true</code> * when the cookie did not exist before and <code>false</code> otherwise. */ private var _isNew:Boolean; /** * Name of the external javascript function used for getting * cookie information. */ private static const GET_COOKIE:String = "cookieGetCookie"; /** * Name of the external javascript function used for setting * cookie information. */ private static const SET_COOKIE:String = "cookieSetCookie"; /** * Javascript code to define the GET_COOKIE function. */ private static var FUNCTION_GET_COOKIE:String = "function () { " + "if (document." + GET_COOKIE + " == null) {" + GET_COOKIE + " = function (name) { " + "if (document.cookie) {" + "cookies = document.cookie.split('; ');" + "for (i = 0; i < cookies.length; i++) {" + "param = cookies[i].split('=', 2);" + "if (decodeURIComponent(param[0]) == name) {" + "value = decodeURIComponent(param[1]);" + "return value;" + "}" + "}" + "}" + "return null;" + "};" + "}" + "}"; /** * Javascript code to define the SET_COOKIE function. */ private static var FUNCTION_SET_COOKIE:String = "function () { " + "if (document." + SET_COOKIE + " == null) {" + SET_COOKIE + " = function (name, value) { " + "document.cookie = name + '=' + value;" + "};" + "}" + "}"; /** * Initializes the class by injecting javascript code into * the embedding document. If the class was already initialized * before, this method does nothing. */ private static function initialize():void { if (Cookies._initialized) { return; } if (!ExternalInterface.available) { throw new Error("ExternalInterface is not available in this container. Internet Explorer ActiveX, Firefox, Mozilla 1.7.5 and greater, or other browsers that support NPRuntime are required."); } // Add functions to DOM if they aren't already there ExternalInterface.call(FUNCTION_GET_COOKIE); ExternalInterface.call(FUNCTION_SET_COOKIE); Cookies._initialized = true; } /** * Creates a new Cookie object. If a cookie with the specified * name already exists, the existing value is used. Otherwise * a new cookie is created as soon as a value is assigned to it. * * @param name The name of the cookie */ public function Cookies(name:String) { Cookies.initialize(); this._name = name; this._value = ExternalInterface.call(GET_COOKIE, name) as String; this._isNew = this._value == null; } /** * The name of the cookie. */ public function get name():String { return this._name; } /** * The value of the cookie. If it is a new cookie, it is not * made persistent until a value is assigned to it. */ public function get value():String { return this._value; } /** * @private */ public function set value(value:String):void { this._value = value; ExternalInterface.call(SET_COOKIE, this._name, this._value); } /** * The <code>isNew</code> property indicates if the cookie * already exists or not. */ public function get isNew():Boolean { return this._isNew; } } } I am using cookie like thisvar anotherCookie:Cookies = new Cookies("username"); anotherCookie.value=[Textinput].text;`.is there any code i need to use save cookie in new window also? Please help me Thanks in Advance.

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  • Double pointer const-correctness warnings in C

    - by Michael Koval
    You can obviously cast a pointer to non-const data to a a pointer of the same type to const data: int *x = NULL; int const *y = x; Adding additional const qualifiers to match the additional indirection should logically work the same way: int * *x = NULL; int *const *y = x; /* okay */ int const *const *z = y; /* warning */ Compiling this with GCC or Clang with the -Wall flag, however, results in the following warning: test.c:4:23: warning: initializing 'int const *const *' with an expression of type 'int *const *' discards qualifiers in nested pointer types int const *const *z = y; /* warning */ ^ ~ Why does adding an additional const qualifier "discard qualifiers in nested pointer types"?

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  • Can i store a Queue in viewstate? only will store the first item i add to queue

    - by Mausimo
    Hey, as the question states i am trying to store a Queue in a viewstate (to track postbacks and refreshes to stop a form from resubmitting). Here is just the viewstate code: private Queue<string> p_tempQue { set { ViewState["sTemp"] = value; } get { return (Queue<string>)ViewState["sTemp"]; } } //BasePage constructor public BasePage() { //create a Queue of string //sTemp = new Queue(); this.Load += new EventHandler(this.Page_Load); this.Init += new EventHandler(this.Page_Init); } //In the 'page_Init' event we have created a simple hidden field by name 'hdnGuid' which is attached to the page on the first hit itself. protected void Page_Init(object sender, EventArgs e) { //initializing the hidden field //create a hidden field with a ID HiddenField hdnGuid = new HiddenField(); hdnGuid.ID = "hdnGuid"; //if it is the first time the page is loaded, create a new guid and assign it as the hidden field value if (!Page.IsPostBack) hdnGuid.Value = Guid.NewGuid().ToString(); //add the hidden field to the page Page.Form.Controls.Add(hdnGuid); } //In the 'page_Load' event we check if the hidden field value is same as the old value. In case the value is not same that means it's a 'postback' //and if the value is same then its 'refresh'. As per situation we set the 'httpContent.Items["Refresh"]' value. protected void Page_Load(object sender, EventArgs e) { if(p_tempQue != null) sTemp = p_tempQue; else sTemp = new Queue<string>(); //The hdnGuid will be set the first time page is loaded, else the hdnGuid //will be set after each time the form is submitted using javascript. //assign the hidden field currently on the page for manipulation HiddenField h1 = (HiddenField)(Page.Form.FindControl("hdnGuid")); //create an instance of the GuidClass GuidClass currentGuid = new GuidClass(); //set the GuidClass Guid property to the value of the hidden field currentGuid.Guid = h1.Value; //check to see if the Queue of strings contains the string which is the current Guid property of the GuidClass //if the are equal, then the page was refreshed if (sTemp.Contains<string>(currentGuid.Guid)) { //adds item as key/value pair to share data between an System.Web.IHttpModule interface and an System.Web.IHttpHandler interface during an HTTP request. System.Web.HttpContext.Current.Items.Add("IsRefresh", true); } //if they are not requal, the page is not refreshed else { //if the current Guid property in the GuidClass is not null or not an empty string //add the new Guid to the Queue if (!(currentGuid.Guid.Equals(null) || currentGuid.Guid.Equals(""))) sTemp.Enqueue(currentGuid.Guid); System.Web.HttpContext.Current.Items.Add("IsRefresh", false); } p_tempQue = sTemp; }

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  • How to listen for file system changes MAC - kFSEventStreamCreateFlagWatchRoot

    - by Cocoa Newbie
    Hi All, I am listening for Directory and disk changes in a COCOA project using FSEvents. I need to get events when a root folder is renamed or deleted. So, I passed kFSEventStreamCreateFlagWatchRoot while creating the FSEventStream.But even if I delete or rename the root folder I am not getting corresponding FSEventStreamEventFlags. Any idea what could possibly be the issue. I am listening for changes in a USB mounted device. I used both FSEventStreamCreate and FSEventStreamCreateRelativeToDevice. One thing I notices is when I try with FSEventStreamCreate I get the following error message while creating FSEventStream: (CarbonCore.framework) FSEventStreamCreate: watch_all_parents: error trying to add kqueue for fd 7 (/Volumes/NO NAME; Operation not supported) But with FSEventStreamCreateRelativeToDevice there are no errors but still not getting kFSEventStreamEventFlagRootChanged in event flags. Also, while creation using FSEventStreamCreateRelativeToDevice apple say's if I want to listen to root path changes pass emty string "". But I am not able to listen to root path changes by passing empty string. But when I pass "/" it works. But even for "/" I do not get any proper FSEventStreamEventFlags. I am pasting the code here: -(void) subscribeFileSystemChanges:(NSString*) path { PRINT_FUNCTION_BEGIN; // if already subscribed then unsubscribe if (stream) { FSEventStreamStop(stream); FSEventStreamInvalidate(stream); /* will remove from runloop */ FSEventStreamRelease(stream); } FSEventStreamContext cntxt = {0}; cntxt.info = self; CFArrayRef pathsToWatch = CFArrayCreate(NULL, (const void**)&path, 1, NULL); stream = FSEventStreamCreate(NULL, &feCallback, &cntxt, pathsToWatch, kFSEventStreamEventIdSinceNow, 1, kFSEventStreamCreateFlagWatchRoot ); FSEventStreamScheduleWithRunLoop(stream, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode); FSEventStreamStart(stream); } call back function: static void feCallback(ConstFSEventStreamRef streamRef, void* pClientCallBackInfo, size_t numEvents, void* pEventPaths, const FSEventStreamEventFlags eventFlags[], const FSEventStreamEventId eventIds[]) {? char** ppPaths = (char**)pEventPaths; int i; for (i = 0; i < numEvents; i++) { NSLog(@"Event Flags %lu Event Id %llu", eventFlags[i], eventIds[i]); NSLog(@"Path changed: %@", [NSString stringWithUTF8String:ppPaths[i]]); } } Thanks a lot in advance.

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  • richfaces keepAlive not working

    - by Jurgen H
    I have a mediaOutput tag which, in its createContent attribute, requires the backing bean to be in a certain state. A list of values, which is filled in an init method, must be available. I therefore added a keepAlive tag for the whole backing bean. I now indeed see the backingBean in stead of some (richfaces) proxy bean, but the filled list is null again. How to make this possible? I checked that the init method was called and that the list is filled in in the init method. <a4j:keepAlive beanName="myBean" /> <a4j:mediaOutput createContent="#{myBean.writeChart}" ... /> The backing bean public class MyBean implements Serializable { public List list; public void init(ActionEvent event) { // call some resource to fill the list list = service.getItems(); } public void writeChart(final OutputStream out, final Object data) throws IOException { // list is null } // getters & setters }

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  • Android: Layouts and views or a single full screen custom view?

    - by futlib
    I'm developing an Android game, and I'm making it so that it can run on low end devices without GPU, so I'm using the 2D API. I have so far tried to use Android's mechanisms such as layouts and activities where possible, but I'm beginning to wonder if it's not easier to just create a single custom view (or one per activity) and do all the work there. Here's an example of how I currently do things: I'm using a layout to display the game's background as an image view and the square game area, which is a custom view, centered in the middle. What would you say? Should I continue to use layouts where possible or is it more common/reasonable to just use a large custom view? I'm thinking that this would probably also make it easier to port my code to other platforms.

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  • What one feature available in other IDEs should be added to Xcode? [closed]

    - by Graham Lee
    This is inspired by Which features from other IDEs/editors you wish you have in Visual Studio? Xcode is a very different tool from Visual Studio, with a different feature set. While some of its capabilities are very mature (it had RAD UI layout in Interface Builder since before most other platforms), it lacks some features that e.g. Visual Studio or Eclipse provide. If you could request one feature to be added to Xcode, which would it be? How would that feature help you write better code, or write the same code faster?

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  • SQL Server: How to remove empty lines in SSMS?

    - by atricapilla
    I have many .sql files with lots of empty lines e.g. WITH cteTotalSales (SalesPersonID, NetSales) AS ( SELECT SalesPersonID, ROUND(SUM(SubTotal), 2) FROM Sales.SalesOrderHeader WHERE SalesPersonID IS NOT NULL GROUP BY SalesPersonID ) SELECT sp.FirstName + ' ' + sp.LastName AS FullName, sp.City + ', ' + StateProvinceName AS Location, ts.NetSales FROM Sales.vSalesPerson AS sp INNER JOIN cteTotalSales AS ts ON sp.BusinessEntityID = ts.SalesPersonID ORDER BY ts.NetSales DESC Is ther a way to remove these empty lines in SQL Server Management Studio? This is what I would like to have: WITH cteTotalSales (SalesPersonID, NetSales) AS ( SELECT SalesPersonID, ROUND(SUM(SubTotal), 2) FROM Sales.SalesOrderHeader WHERE SalesPersonID IS NOT NULL GROUP BY SalesPersonID ) SELECT sp.FirstName + ' ' + sp.LastName AS FullName, sp.City + ', ' + StateProvinceName AS Location, ts.NetSales FROM Sales.vSalesPerson AS sp INNER JOIN cteTotalSales AS ts ON sp.BusinessEntityID = ts.SalesPersonID ORDER BY ts.NetSales DESC

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  • Java: constructing a file from a URI?

    - by AP257
    I need to obtain a File object from a URI, working in Java, but keep getting a length of zero - though I know the file size is not zero. I need the File object to pass to another constructor. I'm not sure if it's because I'm constructing it in the wrong way? Here's my code: File videoFile = new File(videoURI.getPath()); if (videoFile == null) { Log.d(LOG_TAG, "File not found!"); return false; } Log.d(LOG_TAG, "about to upload, filepath: " + videoFile.getPath()); Log.d(LOG_TAG, "File length: " + String.valueOf(videoFile.length())); The log output doesn't spit out 'File not found!', and prints a non-null path, but shows a length of 0.

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