I've got an architecture that involves browsers polling via ajax every 3 seconds for updates and I'd like to change that to long-polling. I'd like to have 1, 2.. {n} clients long-polling, waiting for updates and have something happen on the server to signal the waiting clients to return. My first thought was to use an EventWaitHandle, ...
I'm using a long-polling iframe solution for a chat script. Unfortunately, this requires me to set document.domain='yourdomain.com' in the iframe and main document, because the iframe is a subdomain call. The huge problem is...now all my other scripts that use popups and iframes are broken. They now require me to put document.domain i...
I'm using... $.getJSON(url + "&callback=?", function (b) { ....... }); for a long-polling request. Sometimes it is necessary that I stop the current request being made. Is this possible? ...
I have an existing app written in PHP (using Kohana framework) and I want to do long polling. From some things I read it seems that doing long polling with PHP is not advisable and using something like nodejs is a better choice. My question is what's the best way to integrate nodejs (or some other well suited tool for long polling) with ...
I'm using the following for a long-polling request... $.getJSON(url, function(data) { ... }); The request won't finish until either 30 seconds have passed or there is information to send (long-polling). The problem is that Firefox is the only browser that will display "Waiting for URL..." at the bottom. Is there any way to prev...
I have a simple web page in ASP.NET / C#. Currently to fully render the data I require calling a block of code that runs on background threads and can take multiple minutes to complete. I've got it to the point (using the async attribute on the page declaration) to execute and return fine with the html once it's done. What I'd like it...
I have a form on my web page, it allows to submit many queries to my website, every query is on a separate line in TextArea. Because waiting for all queries to complete is too long I would like to update the web page after every query completes - send result of one query to a web browser, new result should be appended to old results tha...
I am wondering BlazeDS polling configuration, simple or long polling, is the best for a low bandwidth network. ...
Is there any solution for running these kind of operations on DreamHost or other shared hosting environments where I don't have access to tweak apache? ...
I've seen persistent TCP connections implemented (http://devtcg.blogspot.com/2009/01/push-services-implementing-persistent.html), but my needs are a little different. I need an Android service that always runs in the background and keeps a long polling connection to an HTTP server and communicates with it using JSON over POST method. D...
since it's threadless, would the ruby-based thin be okay? ...
I understand that it's considered bad design to use a normal, threaded webserver (e.g., Apache) for AJAX long polling…but I don't really understand why. Is it because each longpolling request takes significantly more time than a normal one would (thus tying up the processor)? And if that's the case, do threads really take that much ove...
I'm trying to open a connection to a URL that will periodically send over a JSON object. I know that I need to use URLStream and some event callbacks, but I'm in the dark when it comes to knowing how streams of data "work," or the general flow of operations. Assume I know how to open the connection and send the correct request headers. F...
Since you're using an event loop as opposed to threads, how does the actual server look? I know it uses an event loop, but how do you separate out the requests? And how do you prevent your server from running extremely slowly (since it, I assume, can only push one thing at a time since it's threadless?) Some sort of pseudo-code would b...
Hi eveyrone, I am currently trying to write a browser-based game that allows multiple users to navigate in a 2D map. It's RPG based and requires COMET as a technique for two users appearing and interacting on one screen, should they happen to appear in the same frame. Also, in the game, I am embedding the maps within the SWF file, but ...
Which native server is best, in your opinion, to implement long-polling / Comet? The first target application is chat, but there will be other implementations - we basically need push-to-client capabilities. I'm limiting the answers to C# or Java because these two technologies are dominant at my workplace. The requirements are as usual:...
i make an ajax request to a php file that runs a while loop that looks for new data in the database, but i cant give it new data because the browser is blocked while waiting for the new data. does anyone know how to not block the browser? ...
Hi folks, I'm using long polling for a chat with gevent. I'm using Event.wait() when waiting for new messages to be posted on the chat. I would like to handle the occasion a client disconnects with some functionality: e.g. Return "client has disconnected" as a message for other chat users Is this possible? =) ...
I wanna integrate the servlet 3.0 async support with spring MVC. Something like: @RequestMapping("/chat") @WebServlet(name="myServlet", asyncSupported=true) public String getMessage(String userName) { ...... } is it possible? ...
I'm writing a backend for a mobile web-app based in Java and I was wondering as far as scalability and ease of use go what are the pros and cons associated with using WebSockets versus Long-Polling solutions like comet. Another option would also be implementing my own solution using TCP. From what I've read it seems that you need to run ...