Search Results

Search found 7738 results on 310 pages for 'calling convention'.

Page 174/310 | < Previous Page | 170 171 172 173 174 175 176 177 178 179 180 181  | Next Page >

  • pushViewController for same instance - only for animation purpose

    - by techastute
    Hi there, I am having single table view in a view controller. That table view lists the countries first. When I click on a country(row), it has to push the same view controller's view with cities under that country. I need to see the slide animation, which we usally get while pushing views in navigator. Is it possible to use the pushViewController for the same view controller by calling the tableView reloadData with city data (This should happen when country is selected) ? Please let me know whether it is possible.. Thanks in advance.. Raj

    Read the article

  • How do I create a random method name

    - by Russ Bradberry
    I plan on using JSONP to call an external webservice to get around the fact that I dont want to create a global function that could potentially conflict with the calling page. I thought that creating a random function name and passing it up would work. Something like this: <script src="www.foo.com/b?cb=d357534"> where cb is the callback function name, the server would return d357534({my json data}); what i want to know is how to create the random function name, im sure i could use eval but is this the best way to go about it? essentially, what i am trying to do is this: var d + Math.floor(Math.random()*1000001) = function(){...

    Read the article

  • Why .NET ASMX web service on secure.site.com can't be called from www.site.com?

    - by user118657
    Hello, We have a web service on https://secure.site.com/service.asmx it works fine from https://secure.site.com/consumer.html but when we try to use it from https://www.site.com/consumer.html we can't do it. Getting 403 error. I'ts probably something related to webservice security (because of different subdomains) but I can't figure out what. How to make https://secure.site.com/service.asmx be accessible from https://www.site.com/consumer.html? Update: Calling webserivce using JQuery Ajax. $.ajax({ type: "POST", url: "https://secure.site.com/service.asmx/method", data: {}, dataType: "xml", success: method_result, error: AjaxFailed }) ; Thanks.

    Read the article

  • Are bit operations quick?

    - by flashnik
    I'm dealing with a problem which needs to work with a lot of data. Currently its' values are represented as unsigned int. I know that real values do not exceed some limit, say 1000. That means that I can use unsigned short to store it. One profit is that it'll use less space. Do I have to pay for it by loosing in performance? Another assumption. I decided to store data as short but all calling functions use int, so I need to convert between these datatypes when storing/extracting values. Wiil the performance lost be dramatic? Third assumption. Due to great wish to econom memory I decided to use not short but just 10 bits packed into array of unsigned int. What will happen in this case comparing with previous ones?

    Read the article

  • what's the purpose of fcntl with parameter F_DUPFD

    - by Daniel
    I traced an oracle process, and find it first open a file /etc/netconfig as file handle 11, and then duplicate it as 256 by calling fcntl with parameter F_DUPFD, and then close the original file handle 11. Later it read using file handle 256. So what's the point to duplicate the file handle? Why not just work on the original file handle? 12931: 0.0006 open("/etc/netconfig", O_RDONLY|O_LARGEFILE) = 11 12931: 0.0002 fcntl(11, F_DUPFD, 0x00000100) = 256 12931: 0.0001 close(11) = 0 12931: 0.0002 read(256, " # p r a g m a i d e n".., 1024) = 1024 12931: 0.0003 read(256, " t s t p i _ c".., 1024) = 215 12931: 0.0002 read(256, 0x106957054, 1024) = 0 12931: 0.0001 lseek(256, 0, SEEK_SET) = 0 12931: 0.0002 read(256, " # p r a g m a i d e n".., 1024) = 1024 12931: 0.0003 read(256, " t s t p i _ c".., 1024) = 215 12931: 0.0003 read(256, 0x106957054, 1024) = 0 12931: 0.0001 close(256) = 0

    Read the article

  • memory usage in C# (.NET) app is very high, until I call System.GC.Collect()

    - by Chris Gray
    I've written an app that spins a few threads each of which read several MB of memory. Each thread then connects to the Internet and uploads the data. this occurs thousands of times and each upload takes some time I'm seeing a situation where (verified with windbg/sos and !dumpheap) that the Byte[] are not getting collected automatically, causing 100/150MB of memory to be reported in task manager if I call System.GC.Collect() i'm seeing a huge drop in memory, a drop of over 100MB I dont like calling System.GC.Collect() and my PC has tons of free memory. however if anyone looks at TaskManager they're going to be concerned, thinking my app is leaking horribly. tips?

    Read the article

  • How do I fire an asynchronous call in asp classic and ignore the response?

    - by Hexate
    Here's the gist: I have a call I want to make in asp, and I do not care about the response. I just want to fire the call and I do not want the page to wait for the response. According to the documentation, it should look something like this: dim xmlhttp : set xmlhttp = Server.CreateObject("MSXML2.ServerXMLHTTP") xmlhttp.Open "POST", url, true '' setting the 'asynchronous' option to 'true' xmlhttp.setRequestHeader "Content-Type", "application/soap+xml; charset=utf-8" xmlhttp.setRequestHeader "Content-Length", Len(XMLData) xmlhttp.send XMLData This works peachy when calling synchronously, but when I flip the ansynchronous option to 'true', nothing fires. What I can gather from the internet is that users do something like the following: While xmlhttp.readyState <> 4 xmlhttp.waitForResponse 1000 Wend Am I crazy in that this does not really seem like an asynchrous call anymore though if you are waiting for a response? putting the line xmlhttp.waitForResponse 1 right after the send will cause the request to fire, but again, I don't want to wait a second. Any thoughts?

    Read the article

  • Injecting dependency into entity repository

    - by Hubert Perron
    Is there a simple way to inject a dependency into every repository instance in Doctrine2 ? I have tried listening to the loadClassMetadata event and using setter injection on the repository but this naturally resulted in a infinite loop as calling getRepository in the event triggered the same event. After taking a look at the Doctrine\ORM\EntityManager::getRepository method it seems like repositories are not using dependency injection at all, instead they are instantiated at the function level: public function getRepository($entityName) { $entityName = ltrim($entityName, '\\'); if (isset($this->repositories[$entityName])) { return $this->repositories[$entityName]; } $metadata = $this->getClassMetadata($entityName); $customRepositoryClassName = $metadata->customRepositoryClassName; if ($customRepositoryClassName !== null) { $repository = new $customRepositoryClassName($this, $metadata); } else { $repository = new EntityRepository($this, $metadata); } $this->repositories[$entityName] = $repository; return $repository; } Any ideas ?

    Read the article

  • No GPS updates on Galaxy S3

    - by Valelik
    I'm developing a GPS tracker and it works like a charm. But a couple of weeks ago a customer of me (a trackage company) bought Samsung Galaxy S3 for his drivers. And since that we have really strange behaviour of my app. The app receives location updates from GPS receiver, but after some hours of work it doesn't receive any location updates. I have registered the app for onGpsStatusChanged() too and in this time onGpsStatusChanged() was called (I see that GPS receiver have 10-17 satellites!), but the method onLocationChanged() was not called! After the service restart (=re-registering of LocationListener) it works again. It is really strange. It seems that after some hours of work the GPS reciever is not in the mood for calling onLocationChanged() :) Any idea what may be wrong?

    Read the article

  • Is it possible to create thread-safe collections without locks?

    - by Andrey
    This is pure just for interest question, any sort of questions are welcome. So is it possible to create thread-safe collections without any locks? By locks I mean any thread synchronization mechanisms, including Mutex, Semaphore, and even Interlocked, all of them. Is it possible at user level, without calling system functions? Ok, may be implementation is not effective, i am interested in theoretical possibility. If not what is the minimum means to do it? EDIT: Why immutable collections don't work. This of class Stack with methods Add that returns another Stack. Now here is program: Stack stack = new ...; ThreadedMethod() { loop { //Do the loop stack = stack.Add(element); } } this expression stack = stack.Add(element) is not atomic, and you can overwrite new stack from other thread. Thanks, Andrey

    Read the article

  • Android - Looking for an AOP solution

    - by Serj Lotutovici
    I'm writing an application that on the bottom line uses it's internal API for some manipulations. The problem is that to call any method provided by that class first I (or anybody who uses the API) have to call #prepare() and after that #cleanup(). It all worked fine until the application and the API started to grow. And the risk of not calling one of the supplied methods before or after the API is now to big to be ignored (which makes it a bug risky application). Searching for a solution I found this question. I use Google Guice in my app for other purposes, but Android doesn't support AOP, that's why a use only guice-no_aop-x.jar. So I end-up with two questions: Is there an AOP solution for android to implement the same approach that is shown in the link above? Or may be someone has an idea that will be suitable for my case? Thanks in advice!

    Read the article

  • Debugging of native code

    - by graham.reeds
    I have a C# Service that is calling a C DLL that was originally written in VC6. There is a bug in the DLL which I am trying to inspect. After having a nightmare trying to get debug to work I eventually added the dll to the VS2005 solution containing the C# Service and added the necessary _CRT_SECURE_NO_WARNINGS. The debug version of the service is registered using 'installutil.exe' tool. I can get the debugger to break just before the line where the dll is entered via a call to System.Diagnostics.Debugger.Break();. I found some instruction on the net regarding stepping into debugging unmanaged code, and enabled the 'Enable unmanaged code debugging' check box, I've also tried turning on the Options-Debugging-Native 'Load DLL exports' and 'Enable RPC Debugging' (even though it's not COM). I've also copied the debug dll and .pdb to the same bin directory as the However the unmanaged code is not being stepped into which is what I really need. UPDATE: I found the Debugging Type in the DLL properties and set it to 'Mixed' as per suggestion on several sites but to no avail.

    Read the article

  • javascript "this" points to Window object again

    - by terrani
    Hello, I asked a question on http://stackoverflow.com/questions/2719643/javascript-this-points-to-window-object regarding "this" points to Window object. here is source code var archive = function(){} archive.prototype.action = { test: function(callback){ callback(); }, test2: function(){ console.log(this); } } var oArchive = new archive(); oArchive.action.test(oArchive.action.test2); Tim Down wrote "but that function is then called using callback(), which means it is not called as a method and hence this is the global object". What are differences between calling a function by its actual name and callback() as shown on the source code? How does console.log(this) in test2 points to Window when it is inside archive.action???

    Read the article

  • How to cancel a web service call if it's not responding

    - by drizzle
    Hi, I have a web page (.aspx) that calls a third party web service to get some data. It usually takes couple of seconds to get the response back, and then the rest of the page will load. Occasionally the call gets stuck either due to the web service is down, or internet connection, etc., the page just hang there and will not load. My questions is: 1) Is there a way to abort/cancel the web service call after a set amount of time? 2) Is it even possible to verify the status of the web service before calling it? Thanks.

    Read the article

  • How can i get notifications from server to android device?

    - by Vaibs
    I am creating a app wherein user shares some information. This data i am storing it in database through servlets i.e. i am calling my own servlets which will take data through url and store it in database. So i want other users of that same app to get notify that some information is available and in turn they will get the information that other user has updated. For this to work we can use polling or pusher. But polling will take lots of battery power. I have tried C2DM but its not working for me. So i am thinking for some other mechanism by which i can implement other than C2DM. Please suggest some way to work it. and e.g. if u have came across.

    Read the article

  • Returning Json object from controller action to jQuery

    - by PsychoCoder
    I'm attempting to get this working properly (2 days now). I'm working on a log in where I'm calling the controller action from jQuery, passing it a JSON object (utilizing json2.js) and returning a Json object from the controller. I'm able to call the action fine, but instead of being able to put the response where I want it it just opens a new window with this printed on the screen: {"Message":"Invalid username/password combination"} And the URL looks like http://localhost:13719/Account/LogOn so instead of calling the action and not reloading the page it's taking the user to the controller, which isn't good. So now for some code, first the controller code [HttpPost] public ActionResult LogOn(LogOnModel model, string returnUrl = "") { if (ModelState.IsValid) { var login = ObjectFactory.GetInstance<IRepository<PhotographerLogin>>(); var user = login.FindOne(x => x.Login == model.Username && x.Pwd == model.Password); if (user == null) return Json(new FailedLoginViewModel { Message = "Invalid username/password combination" }); else { if (!string.IsNullOrEmpty(returnUrl)) return Redirect(returnUrl); else return RedirectToAction("Index", "Home"); } } return RedirectToAction("Index", "Home"); } And the jQuery code $("#signin_submit").click(function () { var login = getLogin(); $.ajax({ type: "POST", url: "../Account/LogOn", data: JSON.stringify(login), dataType: 'json', contentType: 'application/json; charset=utf-8', error: function (xhr) { $("#message").text(xhr.statusText); }, success: function (result) { } }); }); function getLogin() { var un = $("#username").val(); var pwd = $("#password").val(); var rememberMe = $("#rememberme").val(); return (un == "") ? null : { Username: un, Password: pwd, RememberMe: rememberMe }; } In case you need to see the actual login form here that is as well <fieldset id="signin_menu"> <div> <span id="message"></span> </div> <% Html.EnableClientValidation(); %> <% using (Html.BeginForm("LogOn", "Account", FormMethod.Post, new { @id = "signin" })) {%> <% ViewContext.FormContext.ValidationSummaryId = "valLogOnContainer"; %> <%= Html.LabelFor(m => m.Username) %> <%= Html.TextBoxFor(m => m.Username, new { @class = "inputbox", @tabindex = "4", @id = "username" })%><%= Html.ValidationMessageFor(m => m.Username, "*")%> <p> <%= Html.LabelFor(m=>m.Password) %> <%= Html.PasswordFor(m => m.Password, new { @class = "inputbox", @tabindex = "5", @id = "password" })%><%= Html.ValidationMessageFor(m => m.Password, "*")%> </p> <p class="remember"> <input id="signin_submit" value="Sign in" tabindex="6" type="submit"/> <%= Html.CheckBoxFor(m => m.RememberMe, new { @class = "inputbox", @tabindex = "7", @id = "rememberme" })%> <%= Html.LabelFor(m => m.RememberMe) %> <p class="forgot"> <a href="#" id="forgot_password_link" title="Click here to reset your password.">Forgot your password?</a> </p> <p class="forgot-username"> <a href="#" id="forgot_username_link" title="Fogot your login name? We can help with that">Forgot your username?</a> </p> </p> <%= Html.ValidationSummaryJQuery("Please fix the following errors.", new Dictionary<string, object> { { "id", "valLogOnContainer" } })%> <% } %> </fieldset> The login form is loaded on the main page with <% Html.RenderPartial("LogonControl");%> Not sure if that has any bearing on this or not but thought I'd mention it. EDIT: The login form is loaded similar to the Twitter login, click a link and the form loads with the help of jQuery & CSS

    Read the article

  • How to create new account using servlets

    - by Alvin
    I want to know how can I create new account using servlets in post method? I'm currently following MVC design pattern, and I want to know if I pass the required data to register new account from JSP page, then how can I get that data in post method? As request.getParameter() method returning me null. How can I know that post method is calling to create new account? How can I pass all the relevant user information from servlets to model class for registering data to the database table?

    Read the article

  • How to retrieve a numbered sequence range from a List of filenames?

    - by glenneroo
    I would like to automatically parse the entire numbered sequence range of a List<FileData> of filenames (sans extensions) by checking which part of the filename changes. Here is an example (file extension already removed): First filename: IMG_0000 Last filename: IMG_1000 Numbered Range I need: 0000 to 1000 Except I need to deal with every possible type of file naming convention such as: 0000 ... 9999 20080312_0000 ... 20080312_9999 IMG_0000 - Copy ... IMG_9999 - Copy 8er_green3_00001 .. 8er_green3_09999 etc. I need the entire 0-padded range e.g. 0001 not just 1 The sequence number is 0-padded e.g. 0001 The sequence number can be located anywhere e.g. IMG_0000 - Copy The range can start and end with anything i.e. doesn't have to start with 1 and end with 9999 Whenever I get something working for 8 random test cases, the 9th test breaks everything and I end up re-starting from scratch. I've currently been comparing only the first and last filenames (as opposed to iterating through all filenames): void FindRange(List<FileData> files, out string startRange, out string endRange) { string firstFile = files.First().ShortName; string lastFile = files.Last().ShortName; ... } Does anyone have any clever ideas?

    Read the article

  • Limit the number of cron jobs runnging a PHP script

    - by ed209
    I have a daily cron job that grabs 10 users at a time and does a bunch of stuff with them. There are 1000's of users that are part of that process every day. I don't want the cron jobs to overlap as they are heavy on server load. They call stuff from various APIs so I have timeouts and slow data fetching to contend with. I've tried using a flag to mark a cron job as running, but it's not reliable enough as some PHP scripts may time out or fail in various ways. Is there a good way to stop a cron job from calling the PHP script multiple times, or controlling the number of times it is called, so there are only 3 instances for example? I'd prefer a solution in the PHP if possible. Any ideas? At the moment I'm storing the flag as a value in a database, is using a lock type file any better as in here http://stackoverflow.com/questions/851872/does-a-cron-job-kill-last-cron-execution ?

    Read the article

  • Sending BLOBs in a JSON service,... how?

    - by Marten Sytema
    Hello I have a webservice (ie. servlet) implemented in Java. It gets some data from a MySQL table, with one column being of type BLOB (an image), and some other columns are just plain text. Normally I would store the file outside the database with a pointer to it in the database, but due to circumstance I now have to use this BLOB column... What is the proper way to send this? How to encode the image in a JSONObject, and how to parse (and RENDER!) it on the otherside ? I want to use JSONP, to avoid having to proxy it through the consumer's webserver. So that the consumer can just put in a tag pointing to the webservice, calling a callback. Any thoughts how to handle images in this situation? Also thoughts on performance etc. are interesting!

    Read the article

  • Large ResultSet on postgresql query

    - by tuler
    I'm running a query against a table in a postgresql database. The database is on a remote machine. The table has around 30 sub-tables using postgresql partitioning capability. The query will return a large result set, something around 1.8 million rows. In my code I use spring jdbc support, method JdbcTemplate.query, but my RowCallbackHandler is not being called. My best guess is that the postgresql jdbc driver (I use version 8.3-603.jdbc4) is accumulating the result in memory before calling my code. I thought the fetchSize configuration could control this, but I tried it and nothing changes. I did this as postgresql manual recomended. This query worked fine when I used Oracle XE. But I'm trying to migrate to postgresql because of the partitioning feature, which is not available in Oracle XE. My environment: Postgresql 8.3 Windows Server 2008 Enterprise 64-bit JRE 1.6 64-bit Spring 2.5.6 Postgresql JDBC Driver 8.3-603

    Read the article

  • IO completion port key confusion

    - by Richard Tew
    I'm writing an IO completion port based server (source code here) using the Windows DLL API in Python using the ctypes module. But this is a pretty direct usage of the API and this question is directed at those who have a knowledge of IOCP, not Python. As I understand the documentation for CreateIoCompletionPort, you specify your "user defined" completion key when you call this function with a file handle (in my case a socket) you are associating with the created IOCP. When you get around to calling GetQueuedCompletionStatus, you get a completion key value along with a pointer to an overlapped object. The completion key should identify what overlapped object and request has completed. However, let's say I pass in 100 as the completion key in my CreateIoCompletionPort call with an overlapped object. When the same overlapped object has its IO completed and it arrives back through GetQueuedCompletionStatus, the completion key that accompanies it is much larger and bares no resemblance to the original value of 100. Am I misunderstanding how the completion key works, or must I be doing it wrong in the source code I linked above?

    Read the article

  • Accessing the DI container from anywhere

    - by ChrisR
    I've implemented the Symfony2 Dependency Injection container in my Zend Framework project and it works fine in the MVC layer of my application. I've initialized the DIC in my bootstrap and can access it anywhere by calling: Zend_Controller_Front::getInstance()->getParam('bootstrap')->getDic() The problem is that there are some parts of my application that do not utilize the Zend Framework application/MVC layer. My CLI tools for example. I could perfectly initialize a new DIC there but that would just be some copy paste work from the Bootstrap file which is asking for trouble down the road (DRY principles, etc) Is it a better solution to make my DIC available in the Zend_Registry or as a singleton called by a static method DIC::getInstance() for example? I know Registry and singletons are considered bad things but the DIC is such a high level part of the application that I will probably never run into the problems that make it a bad thing. Is this a good solution or are there better ways of accomplishing a globally accessible DIC?

    Read the article

  • Constructor invocation returned null: what to do?

    - by strager
    I have code which looks like: private static DirectiveNode CreateInstance(Type nodeType, DirectiveInfo info) { var ctor = nodeType.GetConstructor(new[] { typeof(DirectiveInfo) }); if(ctor == null) { throw new MissingMethodException(nodeType.FullName, "ctor"); } var node = ctor.Invoke(new[] { info }) as DirectiveNode; if(node == null) { // ???; } return node; } I am looking for what to do (e.g. what type of exception to throw) when the Invoke method returns something which isn't a DirectiveNode or when it returns null (indicated by // ??? above). (By the method's contract, nodeType will always describe a subclass of DirectiveNode.) I am not sure when calling a constructor would return null, so I am not sure if I should handle anything at all, but I still want to be on the safe side and throw an exception if something goes wrong.

    Read the article

  • Should i use HttpResponse.End() for a fast webapp?

    - by acidzombie24
    HttpResponse.End() seems to throw an exception according to msdn. Right now i have the choice of returning a value to say end thread (it only goes 2 functions deep) or i can call end(). I know that throwing exceptions is significantly slower (read the comment for a C#/.NET test) so if i want a fast webapp should i consider not calling it when it is trivially easy to not call it? -edit- I do have a function call in certain functions and in the constructor in classes to ensure the user is logged in. So i call HttpResponse.End() in enough places although hopefully in regular site usage it doesn't occur too often.

    Read the article

< Previous Page | 170 171 172 173 174 175 176 177 178 179 180 181  | Next Page >