Search Results

Search found 5259 results on 211 pages for 'interrupt handling'.

Page 135/211 | < Previous Page | 131 132 133 134 135 136 137 138 139 140 141 142  | Next Page >

• Poco SocketReactor Scalability

  - by Genesis

  I have written a proxy server for Linux using Poco but have since been reading up on the various approaches to achieving TCP/IP server scalability. I will need the server to handle persistent connections (not HTTP traffic) with an upper limit of about 250 simultaneous connections. Each connection typically uses about 5-10Kb/sec and the best possible latency in handling traffic is crucial. As it stands I am using the Poco SocketReactor which uses the Reactor model with a select() call at its heart however I have had a read on the C10K problem as well as few other resources and it seems that using this approach might not be the best idea. I believe there is a test implementation in the Poco libs that uses poll() so this could be an option to improve things. Does anyone have any experience using a Poco SocketReactor and do you have any idea how well it might scale for my scenario? If it will not scale well, suggestions on alternatives would be appreciated.

  Read the article

• Best method for Flex to PHP communication?

  - by davr

  What is the best method for communication between Flex and PHP? In the past, we used AMFPHP with AS2, and it worked great for the most part (advantage of AMFPHP is that it also has a JSON mode that can let you seamlessly use the same remote PHP with either Javascript or Actionscript frontends). However, it seems like AMFPHP isn't realy maintained anymore. So what do people recommend to replace it? So far, what I've found is: Zend_AMF (looks too complex for us, we're not using the Zend framework otherwise) AMFPHP (there were some updated made to support Flex, and it seems fairly stable, but not sure on long-term support) XML (AS3 has nice XML handling routines, but it's more of a pain on the PHP side) WebORB (I have no experience with this) Roll-our-own using JSON or some other data-to-text serialization system (php's serialize(), XML, etc etc) Mostly I'm leaning towards AMFPHP, even because of the downsides, since that's what I'm used to. Any reason I should consider switching to something else?

  Read the article

• VBA for Access 2003 - DDL help with creating access file: setting the Autonumber data type

  - by Justin

  So I have the below VB that creates an access file in the default workspace, creates a table, create some fields in that table...just need to know the syntax for setting the first data type/field to autonumber...GUID, Counter, etc will not work as in Access SQL ' error handling usually goes here dim ws as workspace dim dbExample as database dim tblMain as TableDef dim fldMain as Field dim idxMain as Index set ws = workspace(0) set dbExample = ws.CreateDatabase('string file path') set tblMain = dbExample.CreateTableDef("tblMain") set fldMain = tblMain.CreateField("ID", 'right here I do not know what to substitute for dbInteger to get the autonumber type to work ) tblMain.Fields.Append fldMain etc to create other fields and indexes so in this line: set fldMain = tblMain.CreateField("ID", dbInteger) i need to replace the dbInteger with something that VB reconizes as the autonumber property. i have tried GUID, Counter, Autonumber, AutoIncrement....unfortunately none of these work anyone know the syntax I am missing here? Thanks, Justin

  Read the article

• jquery script removal

  - by VictorS

  I am working on a page(ASP.NET 3.5) that has alert when "Save" button is pressed, i.e.this in page code behind: Page.ClientScript.RegisterStartupScript(this.GetType(), "alertMsg", "alert('" + Message + "');", true); So when I look at the page after sucessful save I see a script tag added: <script type="text/javascript"> //<![CDATA[ alert('Save Sucessful.'); </script> The problem is that there is another button that redirects to another page and on that page there is a button to jump back to this page, i.e. javascript:history.go(-1); So if you save then go to another page and come back you see alert again. Unless there is a better way of handling this situation, I think I need to remove that script when I redirect from the page, can I do it with jQuery, i.e. on redirect button click remove above script from the page?

  Read the article

• interaction between javascript (desktop application) and C#

  - by Roman Dorevich

  Hello. I am writing for my desktop some application for handling some services. I wrote in C# an application that calculates something (lets call it cl.exe) I created a .bat file that starts the cl.exe. I want to call that .bat file from my javascript so I WShell.Run(**.bat). 2 question: The javascript program will not continue till the cl.exe will end ? (It is synchronized ?) The cl.exe returns a value. How can the javascript take it (It is a javascript program that call .bat file that wrapp the execution of the cl.exe) ? Thanks

  Read the article

• XStream <-> Alternative binary formats (e.g. protocol buffers)

  - by sehugg

  We currently use XStream for encoding our web service inputs/outputs in XML. However we are considering switching to a binary format with code generator for multiple languages (protobuf, Thrift, Hessian, etc) to make supporting new clients easier and less reliant on hand-coding (also to better support our message formats which include binary data). However most of our objects on the server are POJOs with XStream handling the serialization via reflection and annotations, and most of these libraries assume they will be generating the POJOs themselves. I can think of a few ways to interface an alternative library: Write an XStream marshaler for the target format. Write custom code to marshal the POJOs to/from the classes generated by the alternative library. Subclass the generated classes to implement the POJO logic. May require some rewriting. (Also did I mention we want to use Terracotta?) Use another library that supports both reflection (like XStream) and code generation. However I'm not sure which serialization library would be best suited to the above techniques.

  Read the article

• Best Method for Minimizable Fullscreen Window

  - by kaykun

  Hi, I'm coding a short game in C++ and Win32, and I want to be able to make it in fullscreen with a fixed size. I also want the user to be able to switch focus between the game window and other windows as much as he/she wants without any weird screen glitches. So far I know of the ChangeDisplaySettings function and creating the window with the WS_POPUP style at initialization to make it fullscreen. To detect the user switching focus to other windows by way of alt+tab or otherwise, what messages should I be handling on the window's WndProc or should I be using another function? When loss of focus is detected should I only call ChangeDisplaySettings(NULL, 0); or are there other functions I should call as well? And what method should I use to handle focus back into the window? Also can anyone give me some info on how to make it work smoothly for different screen sizes? Thanks for any help.

  Read the article

• How do I stop IIS7 from putting out its own 404 before my MVC app gets a chance to handle it?

  - by Gary McGill

  I have an ASP.NET MVC 2 application, which has an Application_Error event handler in global.asax. In this, I'm detecting the case where the Exception type is HttpException and the HTTP code is 404, and redirecting to my own 404-handling page. This works fine on my Cassini development server, but now I'm trying to move it over to my production server which has IIS7. When I request a non-existent URL, IIS7 is showing its own 404 page, and so far as I can tell, my Application_Error method is never called. How do I fix that?

  Read the article

• Secure ajax form POST

  - by user194630

  I was wondering how to develop a secure form post through AJAX. For example, i have: My HTML form. My JavaScript handling the submit. The submit url is "post_data.php" The posted data is: id=8&name=Denis The PHP verifies if variables id and name are POSTED and their data type. If this is ok it proceed to do some stuff on a database. My question is, how can i prevent someone from creating his own html form, outside my web site, or whatever, and posting false data to my PHP script? Imagine that data realy exists on my database, this could be bad. Thanks

  Read the article

• serving large file using select, epoll or kqueue

  - by xask

  Nginx uses epoll, or other multiplexing techniques(select) for its handling multiple clients, i.e it does not spawn a new thread for every request unlike apache. I tried to replicate the same in my own test program using select. I could accept connections from multiple client by creating a non-blocking socket and using select to decide which client to serve. My program would simply echo their data back to them .It works fine for small data transfers (some bytes per client) The problem occurs when I need to send a large file over a connection to the client. Since i have only one thread to serve all client till the time I am finished reading the file and writing it over to the socket i cannot resume serving other client. Is there a known solution to this problem, or is it best to create a thread for every such request ?

  Read the article

• Why does IIS not support chunked transfer encoding?

  - by Graeme Perrow

  I am making an HTTP connection to an IIS web server and sending a POST request with the data encoded using Transfer-Encoding: chunked. When I do this, IIS simply closes the connection, with no error message or status code. According to the HTTP 1.1 spec, All HTTP/1.1 applications MUST be able to receive and decode the "chunked" transfer-coding so I don't understand why it's (a) not handling that encoding and (b) it's not sending back a status code. If I change the request to send the Content-Length rather than Transfer-Encoding, the query succeeds, but that's not always possible. When I try the same thing against Apache, I get a "411 Length required" status and a message saying "chunked Transfer-Encoding forbidden". Why do these servers not support this encoding?

  Read the article

• How does the timeout work in Restlet's client class?

  - by Greg Noe

  Here's some code: Client client = new Client(Protocol.HTTP); client.setConnectTimeout(1); //milliseconds Response response = client.post(url, paramRepresentation); System.out.println("timed out"); What I would expect to happen is that it prints "timed out" before the resource has time to process. Instead, nothing happens with the timeout and it doesn't print "timed out" until after the resource returns. Even if I put a Thread.sleep(5000) at the resource that's handling the request, the entire sleep is performed, like the timeout did nothing. Anyone have experience with this? I'm using Restlet 1.1.1. Thanks.

  Read the article

• Listening and firing events with Javascript and maybe jQuery

  - by at

  In my Javascript and Flex applications, users often perform actions that I want other Javascript code on the page to listen for. For example, if someone adds a friend. I want my Javascript app to then call something like triggerEvent("addedFriend", name);. Then any other code that was listening for the "addedFriend" event will get called along with the name. Is there a built-in Javascript mechanism for handling events? I'm ok with using jQuery for this too and I know jQuery makes extensive use of events. But with jQuery, it seems that its event mechanism is all based around elements. As I understand, you have to tie a custom event to an element. I guess I can do that to a dummy element, but my need has nothing to do with DOM elements on a webpage. Should I just implement this event mechanism myself?

  Read the article

• Query and/or Search for SharePoint Document ID

  - by Paul-Jan

  We have the sharepoint 2010 environment with Document ID's enabled. Given (part of) a Doc ID, we want to programmatically retrieve the document(s) matching that ID. The problem seems to be that this column is rather special, in that it might need special handling. Using an SPSiteDataQuery, fetching the _dlc_DocId field as part of the viewfields works fine. However, including it as part of the where query never results in any documents being fetched. Using the Search API has gotten us nowhere at all. Has anyone pulled this off, or any suggestions on how to tackle this problem? [Update] Looks like DocumentIdProvider.GetDocumentUrlsById might be used for this purpose. If necessary, the matching SPListItem can then be found by querying on the URL. However, the MSDN documentation doesn't document the documentId arugment properly, so I'm unsure whether partial ID's are allowed and in what format.

  Read the article

• iPhone - Is it ok to override UITableViewCell setSelected:animated

  - by Brian

  I am drawing custom UITableViewCells. My cells are opaque and are completely drawn in the drawRect of the cell to help with performance. I want to handle the look of a selected cell myself. If I don't, then the contents of my cell is covered up by the selectedBackgroundView that is added. Is it common or acceptable to override the setSelected:animated method of my cell so this is done properly. I guess if I did that, then I would not call the super's setSelected method since I would be handling how the cell will show that its selected. I would also have to set the selected property of the cell. Any help would be great. Thanks.

  Read the article

• Lightweight Object->Database in python

  - by pehrs

  I am in need of a lightweight way to store dictionaries of data into a database. What I need is something that: Creates a database table from a simple type description (int, float, datetime etc) Takes a dictionary object and inserts it into the database (including handling datetime objects!) If possible: Can handle basic references, so the dictionary can reference other tables I would prefer something that doesn't do a lot of magic. I just need an easy way to setup and get data into an SQL database. What would you suggest? There seems to be a lot of ORM software around, but I find it hard to evaluate them.

  Read the article

• Change the null placeholder in a Cocoa binding?

  - by Monolo

  Is there a way to change (for the purpose of localization) the null placeholder in a binding in Cocoa? The bindings are set up in Interface Builder for a popup button. The two-way nature of the bindings as set up in IB is needed, so doing it programmatically is not really appealing. I am aware that the standard way of handling localizations of a nib file is by making one for each language, but since this is the only difference in the whole nib file between the language versions, it seems a bit excessive for a single string. If there is a way to modify a binding created in IB, I was thinning about doing it in the file's owner's awakeFromNib method.

  Read the article

• How to get users to read error messages?

  - by FX

  If you program for a nontechnical audience, you find yourself at a high risk that users will not read your carefully worded and enlightening error messages, but just click on the first button available with a shrug of frustration. So, I'm wondering what good practices you can recommend to help users actually read your error message, instead of simply waiving it aside. Ideas I can think of would fall along the lines of: Formatting of course help; maybe a simple, short message, with a "learn more" button that leads to the longer, more detailed error message Have all error messages link to some section of the user guide (somewhat difficult to achieve) Just don't issue error messages, simply refuse to perform the task (a somewhat "Apple" way of handling user input) Edit: the audience I have in mind is a rather broad user base that doesn't use the software too often and is not captive (i.e., not an in-house software or narrow community). A more generic form of this question was asked on slashdot, so you may want to check there for some of the answers.

  Read the article

• IE8 AJAX GET setRequestHeaders not working unless params provided in URL

  - by bobthabuilda

  I'm trying to create an AJAX request in IE8. var xhr = new ActiveXObject( 'Msxml2.XMLHTTP' ); xhr.open( 'GET', '/ajax/' ); // Required header for Django to detect AJAX request xhr.setRequestHeader( 'X-Requested-With', 'XMLHttpRequest' ); xhr.onreadystatechange = function() { if ( this.readyState == 4 ) console.log(this.responseText); } xhr.send( null ); This works perfectly fine in Firefox, Chrome, Safari. In IE8 however, all of my AJAX test requests work EXCEPT for ones where I'm performing GETs without any query string params (such as the one above). POSTs work without question, and GET requests only work whenever I include query strings in the URL, like this: xhr.open( 'GET', '/ajax/?foo=bar' ) I'm also 110% positive that my server code is handling these requests appropriately, so, this stumps me completely. Does anyone have any clue as to what might be causing this?

  Read the article

• Rails choking on the content of this request because of protect_from_forgery

  - by randombits

  I'm trying to simply test my RESTful API with cURL. Using the following invocation: curl -d "name=jimmy" -H "Content-Type: application/x-www-form-urlencoded" http://127.0.0.1:3000/people.xml -i Rails is dying though: ActionController::InvalidAuthenticityToken (ActionController::InvalidAuthenticityToken): :8:in `synchronize' Looks like it's running this through a protect_from_forgery filter. I thought protect_from_forgery is excluded for non-HTML HTTP POST/PUT/DELETE type requests? This is clearly targeting the XML format. If I pass actual XML content, it works. But my users will be submitting POST data as URL encoded parameters. I know all the various ways I can disable protect_from_forgery but what's the proper way of handling this? I want to leave it on so that when I do have HTML based forms and handle format.html, I don't forget to re-enable it for then. I want users to be able to make HTTP POST requests to my XML-based API though and not get bombarded with this.

  Read the article

• Problem reading from the StandarOutput from ftp.exe. Possible System.Diagnostics.Process Framework b

  - by SoMoS

  Hello, I was trying some stuff executing console applications when I found this problem handling the I/O of the ftp.exe command that everybody has into the computer. Just try this code: m_process = New Diagnostics.Process() m_process.StartInfo.FileName = "ftp.exe" m_process.StartInfo.CreateNoWindow = True m_process.StartInfo.RedirectStandardInput = True m_process.StartInfo.RedirectStandardOutput = True m_process.StartInfo.UseShellExecute = False m_process.Start() m_process.StandardInput.AutoFlush = True m_process.StandardInput.WriteLine("help") MsgBox(m_process.StandardOutput.ReadLine()) MsgBox(m_process.StandardOutput.ReadLine()) MsgBox(m_process.StandardOutput.ReadLine()) MsgBox(m_process.StandardOutput.ReadLine()) This should show you the text that ftp sends you when you do that from the command line: Los comandos se pueden abreviar. Comandos: ! delete literal prompt send ? debug ls put status append dir mdelete pwd trace ascii disconnect mdir quit type bell get mget quote user binary glob mkdir recv verbose bye hash mls remotehelp cd help mput rename close lcd open rmdir Instead of that I'm getting the first line and 3 more with garbage, after that the call to ReadLine block like if there was no data available. Any hints about that?

  Read the article

• Random blank pages on Safari when developing webapp

  - by Ali

  Hey guys, I've been experiencing a safari problem while building a web application. The screen goes completely blank (white) and refreshing won't help. Going to another page on the site gives the same problem. Then magically, after a little while, everything goes back to normal and pages are rendered correctly! This started happening around the same time that I SUSPECT my hosting automatically upgraded from PHP 5.2.x to 5.3 (all of a sudden, we got 'deprecated function' errors and the error settings and handling were unchanged) I also have to mention that this doesn't happen in our dev environment (PHP 5.2.9, Apache 2) Settings Safari 4.0.2 and the latest one (don't know the version) Server side: PHP 5.3, MySQL 5.0.90, Apache is cPanel Easy Apache v3.2.0 Does anyone know why this is happening at all, or how to fix it? I appreciate any help or pointers you might have. Thanks!

  Read the article

• How to set WCF threads to schedual differently

  - by Gilad

  Hi, I'm running a winservice that has 2 main objectives. Execute/Handle exposed webmethods. Run Inner processes that consume allot of CPU. The problem is that when I execute many inner processes |(as tasks) that are queued to the threadpool or taskpool, the execution of the webmethods takes much more time as WCF also queues its executions to the same threadpool. This even happens when setting the inner processes task priority to lowest and setting the webmethods thread priority to heights. I hoped that Framework 4.0 would improve this, and they have, but still it takes quite allot of time for the system to handle the WCF queued tasks if the CPU is handling other inner tasks. Is it possible to change the Threadpool that WCF uses to a different one? Is it possible to manually change the task queue (global task queue, local task queue). Is it possible to manually handle 2 task queues that behave differently ? Any help in the subject would be appropriated. Gilad.

  Read the article

• What is inside Windows SDK?

  - by AKN

  For developing programs for windows, we need windows SDK. I understand that this SDK is what helps to create windows and handle window events and all that. I suppose it also enables us to manipulate with files and registries. (Does the same SDK is the reason for thread creation and handling?) All that is fine! I would like to know what are the files and libraries that come as a part of this SDK. Also does it come when I install the OS or when I install editors like Visual studio? Sometimes I see links to windows SDK separately as such. Is it same as the one that I get when installing Visual Studio or has something more than that.

  Read the article

• cakephp site domain change, having 301 issues

  - by veryMickey

  I moved my cakephp site from a subdomain over to a different domain. I handled the permanent redirect in my htaccess file but in the redirect i am losing my neat/clean url handling. old site iphone.gameachievements.org new site gameachievements.org example of current redirect iphone.gameachievements.org/games/jungle-swing - gameachievements.org/index.php?url=games/jungle-swing what i want.. is iphone.gameachievements.org/games/jungle-swing - gameachievements.org/games/jungle-swing here is what my htaccess file looks like... RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(.*)$ index.php?url=$1 [QSA,L] RewriteCond %{HTTP_HOST} iphone.gameachievements.org RewriteRule (.*) http://gameachievements.org/$1 [R=301,L] any help is appricated thanks m!

  Read the article

< Previous Page | 131 132 133 134 135 136 137 138 139 140 141 142  | Next Page >