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  • Do I need to using locking against integers in c++ threads

    - by Shane MacLaughlin
    The title says it all really. If I am accessing a single integer type (e.g. long, int, bool, etc...) in multiple threads, do I need to use a synchronisation mechanism such as a mutex to lock them. My understanding is that as atomic types, I don't need to lock access to a single thread, but I see a lot of code out there that does use locking. Profiling such code shows that there is a significant performance hit for using locks, so I'd rather not. So if the item I'm accessing corresponds to a bus width integer (e.g. 4 bytes on a 32 bit processor) do I need to lock access to it when it is being used across multiple threads? Put another way, if thread A is writing to integer variable X at the same time as thread B is reading from the same variable, is it possible that thread B could end up a few bytes of the previous value mixed in with a few bytes of the value being written? Is this architecture dependent, e.g. ok for 4 byte integers on 32 bit systems but unsafe on 8 byte integers on 64 bit systems? Edit: Just saw this related post which helps a fair bit.

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  • Write-Only Reference in C++?

    - by Robert Mason
    Is there a way to code a write-only reference to an object? For example, suppose there was a mutex class: template <class T> class mutex { protected: T _data; public: mutex(); void lock(); //locks the mutex void unlock(); //unlocks the mutex T& data(); //returns a reference to the data, or throws an exception if lock is unowned }; Is there a way to guarantee that one couldn't do this: mutex<type> foo; T& ref; foo.lock(); ref = foo.data(); foo.unlock(); //I have a unguarded reference to foo now On the other hand, is it even worth it? I know that some people assume that programmers won't deliberately clobber the system, but then, why do we have private variables in the first place, eh? It'd be nice to just say it's "Undefined Behavior", but that just seems a little bit too insecure.

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  • How to save enum settings in Visual Studio project properties?

    - by zaidwaqi
    Hi, In the Settings tab in Visual Studio, I can see Name, Type, Scope, Value table. Define settings is intuitive if the data type is already within the Type drop-down list i.e. integer, string, long etc. But I can't find enum anywhere. How do I save enum settings then? For now, I have the following which clutter my code too much. public enum Action { LOCK = 9, FORCED_LOGOFF = 12, SHUTDOWN = 14, REBOOT, LOGOFF = FORCED_LOGOFF }; and I define Action as int in the setting. Then I have to do, switch (Properties.Settings.Default.Action) { case 9: SetAction(Action.LOCK); break; case 12: SetAction(Action.FORCED_LOGOFF); break; case 14: SetAction(Action.SHUTDOWN); break; case 15: SetAction(Action.REBOOT); break; default: SetAction(Action.LOCK); break; } Would be nice if I could simply do something like SetAction(Properties.Settings.Default.Action); to replace all above but I dont know how to save enum in setting. Hope my question is clear. Thanks.

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  • jqgrid questions

    - by user508518
    Hi All- I recently posted a question on SO on freezing columns in jqgrid(http://stackoverflow.com/questions/4586924/jqgrid-freeze-columns). I got the following solution to be working in IE8, but its not all perfect: I set to use two css classes, one for header and other one for the rows like below: .jqgridbodyLock{ position:relative; left: expression(parentNode.parentNode.parentNode.parentNode.parentNode.scrollLeft); z-index: 10; } .jqgridheaderLocked{ position:relative; left: expression(parentNode.parentNode.parentNode.parentNode.parentNode.scrollLeft); /* IE5+ only */ z-index:30; } Then in colModel, I used the property classes {name:'column1', width:100, index:'column1', sorttype:"string", classes:'jqgridbodyLock'},//lock the body row and to lock the respective header I used code as below: $("#grid").setLabel("column1","column1","jqgridheaderLocked"); Though the solution works, I have the following problems: 1) The header values shake a lot when scrolling to the right though they remain frozen 2) The body values of the frozen column disappear when the cursor is taken out of the grid. 3) How to lock a normal table in firefox. I see that 'expression' is exclusive only to IE browser Thanks a lot

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  • How to efficiently use LOCK_ESCALATION mssql 2008

    - by Avias
    I'm currently having troubles with frequent deadlocks with a specific user table in MS SQL 2008. Here are some facts about this particular table: Has a large amount of rows (1 to 2 million) All the indexes used on this table only has "use row lock" ticked on its option rows are frequently updated by multiple transactions but are unique (e.g. probably a thousand or more update statements are executed to different unique rows every hour) the table does not use partitions. Upon checking the table on sys.tables, I found that the lock_escalation is set to TABLE I'm very tempted to turn the lock_escalation for this table to DISABLE but I'm not really sure what side effect this would incur. From What I understand, using DISABLE will minimize escalating locks to TABLE level which if combined with the row lock settings of the indexes should theoretically minimize the deadlocks I am encountering.. From what I have read in Determining threshold for lock escalation it seems that locking automatically escalates when a single transaction fetches 5000 rows.. What does a single transaction mean in this sense? A single session/connection getting 5000 rows thru individual update/select statements? Or is it a single sql update/select statement that fetches 5000 or more rows? Any insight is appreciated, btw, n00b DBA here Thanks

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  • How (and if) to write a single-consumer queue using the task parallel library?

    - by Eric
    I've heard a bunch of podcasts recently about the TPL in .NET 4.0. Most of them describe background activities like downloading images or doing a computation, using tasks so that the work doesn't interfere with a GUI thread. Most of the code I work on has more of a multiple-producer / single-consumer flavor, where work items from multiple sources must be queued and then processed in order. One example would be logging, where log lines from multiple threads are sequentialized into a single queue for eventual writing to a file or database. All the records from any single source must remain in order, and records from the same moment in time should be "close" to each other in the eventual output. So multiple threads or tasks or whatever are all invoking a queuer: lock( _queue ) // or use a lock-free queue! { _queue.enqueue( some_work ); _queueSemaphore.Release(); } And a dedicated worker thread processes the queue: while( _queueSemaphore.WaitOne() ) { lock( _queue ) { some_work = _queue.dequeue(); } deal_with( some_work ); } It's always seemed reasonable to dedicate a worker thread for the consumer side of these tasks. Should I write future programs using some construct from the TPL instead? Which one? Why?

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  • .NET List Thread-Safe Implementation Suggestion needed

    - by Bamboo
    .Net List class isn't thread safe. I hope to achieve the minimal lock needed and yet still fulfilling the requirement such that as for reading, phantom record is allowed, and for writing, they must be thread-safe so there won't be any lost updates. So I have something like public static List<string> list = new List<string>(); In Methods that have **List.Add**/**List.Remove** , I always lock to assure thread safety lock (lockHelper) { list.Add(obj); or list.Remove(obj); } In Methods that requires **List Reading** I don't care about phantom record so I go ahead to read without any locking. In this case. Return a bool by checking whether a string had been added. if (list.Count() != 0) { return list.Contains("some string") } All I did was locking write accesses, and allow read accesses to go through without any locking. Is my thread safety idea valid? I understand there is List size expansion. Will it be ok? My guess is that when a List is expanding, it may uses a temp. list. This is ok becasue the temp list size will always have a boundary, and .Net class is well implemented, ie. there shouldn't be any indexOutOfBound or circular reference problems when reading was caught in updates.

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  • Multiple locking task (threading)

    - by Archeg
    I need to implement the class that should perform locking mechanism in our framework. We have several threads and they are numbered 0,1,2,3.... We have a static class called ResourceHandler, that should lock these threads on given objects. The requirement is that n Lock() invokes should be realeased by m Release() invokes, where n = [0..] and m = [0..]. So no matter how many locks was performed on single object, only one Release call is enough to unlock all. Even further if o object is not locked, Release call should perform nothing. Also we need to know what objects are locked on what threads. I have this implementation: public class ResourceHandler { private readonly Dictionary<int, List<object>> _locks = new Dictionary<int, List<object>>(); public static ResourceHandler Instance {/* Singleton */} public virtual void Lock(int threadNumber, object obj) { Monitor.Enter(obj); if (!_locks.ContainsKey(threadNumber)) {_locks.Add(new List<object>());} _locks[threadNumber].Add(obj); } public virtual void Release(int threadNumber, object obj) { // Check whether we have threadN in _lock and skip if not var count = _locks[threadNumber].Count(x => x == obj); _locks[threadNumber].RemoveAll(x => x == obj); for (int i=0; i<count; i++) { Monitor.Exit(obj); } } // ..... } Actually what I am worried here about is thread-safety. I'm actually not sure, is it thread-safe or not, and it's a real pain to fix that. Am I doing the task correctly and how can I ensure that this is thread-safe?

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  • OpenGL multiple threads, variable handling [closed]

    - by toeplitz
    I have written an OpenGL program which runs in the following way: Main: - Initialize SDL - Create thread which has the OpenGL context: - Renderloop - Set camera (view) matrix with glUniform. - glDrawElements() .... etc. - Swapbuffers(); - Main SDL loop handling input events and such. - Update camera matrix of type glm::mat4. This is how I pass my camera object to the class that handles opengl. Camera *cam = new Camera(); gl.setCam(cam); where void setCam(Camera *camera) { this->camera = camera; } For rendering in the opengl context thread, this happens: glm::mat4 modelView = camera->view * model; glUniformMatrix4fv(shader->bindUniform("modelView"), 1, GL_FALSE, glm::value_ptr(modelView)); In the main program where my SDL and other things are handles I then recompute the view matrix. This his working fine without me using any mutex locks. Is this correct? On the other hand, I add objects to my scene by an "upload queue" and in this case I have to mutex lock my upload queue vector (vector class type) when adding items to it or else the program crashes. In summary: I recompute my matrix in a different thread and then use it in the opengl thread without any mutex lock. Why is this working? Edit: I think my question is similar to what was asked here: Should I lock a variable in one thread if I only need it's value in other threads, and why does it work if I don't?, only in my case it is even more simple with only one matrix being changed.

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  • Print SSRS Report / PDF automatically from SQL Server agent or Windows Service

    - by Jeremy Ramos
    Originally posted on: http://geekswithblogs.net/JeremyRamos/archive/2013/10/22/print-ssrs-report--pdf-from-sql-server-agent-or.aspxI have turned the Web upside-down to find a solution to this considering the least components and least maintenance as possible to achieve automated printing of an SSRS report. This is for the reason that we do not have a full software development team to maintain an app and we have to minimize the support overhead for the support team.Here is my setup:SQL Server 2008 R2 in Windows Server 2008 R2PDF format reports generated by SSRS Reports subscriptions to a Windows File ShareNetwork printerColoured reports with logo and brandingI have found and tested the following solutions to no avail:ProsConsCalling Adobe Acrobat Reader exe: "C:\Program Files (x86)\Adobe\Reader 11.0\Reader\acroRd32.exe" /n /s /o /h /t "C:\temp\print.pdf" \\printserver\printername"Very simple optionAdobe Acrobat reader requires to launch the GUI to send a job to a printer. Hence, this option cannot be used when printing from a service.Calling Adobe Acrobat Reader exe as a process from a .NET console appA bit harder than above, but still a simple solutionSame as cons abovePowershell script(Start-Process -FilePath "C:\temp\print.pdf" -Verb Print)Very simple optionUses default PDF client in quiet mode to Print, but also requires an active session.    Foxit ReaderVery simple optionRequires GUI same as Adobe Acrobat Reader Using the Reporting Services Web service to run and stream the report to an image object and then passed to the printerQuite complexThis is what we're trying to avoid  After pulling my hair out for two days, testing and evaluating the above solutions, I ended up learning more about printers (more than ever in my entire life) and how printer drivers work with PostScripts. I then bumped on to a PostScript interpreter called GhostScript (http://www.ghostscript.com/) and then the solution starts to get clearer and clearer.I managed to achieve a solution (maybe not be the simplest but efficient enough to achieve the least-maintenance-least-components goal) in 3-simple steps:Install GhostScript (http://www.ghostscript.com/download/) - this is an open-source PostScript and PDF interpreter. Printing directly using GhostScript only produces grayscale prints using the laserjet generic driver unless you save as BMP image and then interpret the colours using the imageInstall GSView (http://pages.cs.wisc.edu/~ghost/gsview/)- this is a GhostScript add-on to make it easier to directly print to a Windows printer. GSPrint automates the above  PDF -> BMP -> Printer Driver.Run the GSPrint command from SQL Server agent or Windows Service:"C:\Program Files\Ghostgum\gsview\gsprint.exe" -color -landscape -all -printer "printername" "C:\temp\print.pdf"Command line options are here: http://pages.cs.wisc.edu/~ghost/gsview/gsprint.htmAnother lesson learned is, since you are calling the script from the Service Account, it will not necessarily have the Printer mapped in its Windows profile (if it even has one). The workaround to this is by adding a local printer as you normally would and then map this printer to the network printer. Note that you may need to install the Printer Driver locally in the server.So, that's it! There are many ways to achieve a solution. The key thing is how you provide the smartest solution!

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  • Creating a bare bone web-browser: After the html parser, javascript parser, etc have done their work, how do I display the content of the webpage?

    - by aste123
    This is a personal project to learn computer programming. I took a look at this: https://www.udacity.com/course/viewer#!/c-cs262 The following is the approach taken in it: Abstract Syntax Tree is created. But javascript is still not completely broken down in order not to confuse with the html tags. Then the javascript interpreter is called on it. Javascript interpreter stores the text from the write() and document.write() to be used later. Then a graphics library in Python is called which will convert everything to a pdf file and then we convert it into png or jpeg and then display it. My Question: I want to display the actual text in a window (which I will design later) like firefox or chrome does instead of image files so that the data can be selected, copied, etc by the user of the browser. How do I accomplish this? In other words, what are the other elements of a bare bone web browser that I am missing? I would prefer to implement most of the stuff in C++ although if things seem too complicated I might go with Python to save time and create a prototype and later creating another bare bone browser in C++ and add more features. This is a project to learn more. I do realize we already have lots of reliable browsers like firefox, etc. The way I feel it is done: I think after all the broken down contents have been created by the parsers and interpreters, I will need to access them individually from within the window's code (like qt) and then decide upon a good way to display them. I am not sure if it is the way this should be done. Additions after useful comment by Kilian Foth: I found this page: http://friendlybit.com/css/rendering-a-web-page-step-by-step/ 14. A DOM tree is built out of the broken HTML 15. New requests are made to the server for each new resource that is found in the HTML source (typically images, style sheets, and JavaScript files). Go back to step 3 and repeat for each resource. 16. Stylesheets are parsed, and the rendering information in each gets attached to the matching node in the DOM tree 17. Javascript is parsed and executed, and DOM nodes are moved and style information is updated accordingly 18. The browser renders the page on the screen according to the DOM tree and the style information for each node 19. You see the page on the screen I need help with step 18. How do I do that? How much work do Webkit and Gecko do? I want to use a readymade layout renderer for step number 18 and not for anything that comes before that.

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  • Is Python Interpreted or Compiled?

    - by crodjer
    This is just a wondering I had while reading about interpreted and compiled languages. Ruby is no doubt an interpreted language, since source code is compiled by an interpreter at the point of execution. On the contrary C is a compiled language, as one have to compile the source code first according to the machine and then execute. This results is much faster execution. Now coming to Python: A python code (somefile.py) when imported creates a file (somefile.pyc) in the same directory. Let us say the import is done in a python shell or django module. After the import I change the code a bit and execute the imported functions again to find that it is still running the old code. This suggests that *.pyc files are compiled python files similar to executable created after compilation of a C file, though I can't execute *.pyc file directly. When the python file (somefile.py) is executed directly ( ./somefile.py or python somefile.py ) no .pyc file is created and the code is executed as is indicating interpreted behavior. These suggest that a python code is compiled every time it is imported in a new process to crate a .pyc while it is interpreted when directly executed. So which type of language should I consider it as? Interpreted or Compiled? And how does its efficiency compare to interpreted and compiled languages? According to wiki's Interpreted Languages page it is listed as a language compiled to Virtual Machine Code, what is meant by that? Update Looking at the answers it seems that there cannot be a perfect answer to my questions. Languages are not only interpreted or only compiled, but there is a spectrum of possibilities between interpreting and compiling. From the answers by aufather, mipadi, Lenny222, ykombinator, comments and wiki I found out that in python's major implementations it is compiled to bytecode, which is a highly compressed and optimized representation and is machine code for a virtual machine, which is implemented not in hardware, but in the bytecode interpreter. Also the the languages are not interpreted or compiled, but rather language implementations either interpret or compile code. I also found out about Just in time compilation As far as execution speed is concerned the various benchmarks cannot be perfect and depend on context and the task which is being performed. Please tell if I am wrong in my interpretations.

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  • Programme d'étude sur le C++ bas niveau, un article d'Alex Darby traduit par Bousk

    Nouvelle série d'articles annoncée dans Le programme de rentrée de la rubrique C++. L'objectif de cette série d'article d'Alex Darby sur la programmation "bas-niveau" est de permettre aux développeurs ayant déjà des connaissances de la programmation C++ de mieux comprendre comme vos programmes sont exécutés en pratique. Ce premier article explique l'importance de connaître le fonctionnement bas-niveau et comment récupérer le code assembleur généré par le compilateur et l'interpréter. Programme d'étude sur le C++ bas niveau

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  • Core debugger enhancements in VS2010

    Since my team offers "parallel debugging", we refer to the team delivering all the other debugging features as the "core debugger" team. They have published a video of new VS2010 debugger features that I encourage you to watch to find out about enhancements with DataTips, breakpoints, dump debugging (inc. IL interpreter) and Threads window.The raw list of features with short description is also here. Comments about this post welcome at the original blog.

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  • Why is learning assembly language seen as a disadvantage?

    - by cprogcr
    I was recently reading an article about making a compiler, and one of the disadvantages mentioned about making a compiler instead of interpreter, was "Learning Assembly language".I understand that perhaps it takes a little more time to learn ASM than it would take for a high level language. But why should it be seen as a disadvantage? And this is not the first time, I mean there are a lot of articles which see ASM as a disadvantage or not important.Personally I find ASM interesting and not at all as a "disadvantage".

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  • Core debugger enhancements in VS2010

    Since my team offers "parallel debugging", we refer to the team delivering all the other debugging features as the "core debugger" team. They have published a video of new VS2010 debugger features that I encourage you to watch to find out about enhancements with DataTips, breakpoints, dump debugging (inc. IL interpreter) and Threads window.The raw list of features with short description is also here. Comments about this post welcome at the original blog.

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  • State machine interpreters

    - by saadtaame
    I wrote my own state machine tool in C and at this point I'm faced with two choices for specifying state machines. Crafting a little language and writing a interpreter. Writing a compiler for that language. I know the advantages/disadvantages of each. I'd like to know what choices game programmers have made for their games. If you've used a state machine in your game in any form, I'd be interested in knowing how you did it.

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  • unable to login in to phpbb through session of wesite

    - by pramod4u
    With the below code we unable to session ingrate please help us how to integrate is there any modification let give modification. Thank you <?php session_start(); include "conn.php"; include "PHPBB_Login.php"; echo $_SESSION['username']; $data=mysql_query("select * from people where username='".$_SESSION['username']."'"); $data_data=mysql_fetch_array($data); echo $_SESSION['username']; $_SESSION['username']=$data_data['username']; echo $_SESSION['username']; $phpbbq=mysql_query("select user_id from phpbb_users where username='".$data_data['username']."'"); $phpbbr=mysql_fetch_array($phpbbq); //echo $phpbbr['user_id']; $id=$phpbbr['user_id']; $phpbb->login($id ); ?> <? class PHPBB_Login { function PHPBB_Login() { } function login($phpbb_user_id) { $id=$phpbb_user_id ; global $db, $board_config; global $HTTP_COOKIE_VARS, $HTTP_GET_VARS, $SID; // Setup the phpbb environment and then // run through the phpbb login process // You may need to change the following line to reflect // your phpBB installation. require_once('./phpBB-3.0.7-PL1/phpBB3/config.php'); define('IN_PHPBB',true); // You may need to change the following line to reflect // your phpBB installation. $phpbb_root_path = "./phpBB-3.0.7-PL1/phpBB3/"; require_once( $phpbb_root_path . "extension.inc" ); require_once( $phpbb_root_path . "common.php" ); // return session_begin($id,$user_ip, PAGE_INDEX, FALSE, TRUE ); return session_begin($id,$user_ip, PAGE_INDEX, FALSE, $autologin, '0'); } function logout( $session_id, $phpbb_user_id ) { global $db, $lang, $board_config; global $HTTP_COOKIE_VARS, $HTTP_GET_VARS, $SID; // Setup the phpbb environment and then // run through the phpbb login process // You may need to change the following line to reflect // your phpBB installation. require_once( './phpBB-3.0.7-PL1/phpBB3/config.php' ); define('IN_PHPBB',true); // You may need to change the following line to reflect // your phpBB installation. $phpbb_root_path = "./phpBB-3.0.7-PL1/phpBB3/"; require_once( $phpbb_root_path . "extension.inc" ); require_once( $phpbb_root_path . "common.php" ); session_end( $session_id, $phpbb_user_id ); // session_end doesn't seem to get rid of these cookies, // so we'll do it here just in to make certain. setcookie( $board_config[ "cookie_name" ] . "_sid", "", time() - 3600, " " ); setcookie( $board_config[ "cookie_name" ] . "_mysql", "", time() - 3600, " " ); } } ?>

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  • Need help with wp_rewrite in a WordPress Plugin

    - by Brad
    Ok, I've got this code that I've been using to spit out news to an application of mine. It was working until today. I've cutout all the logic in the following code to make it simpiler. But it should "WORK" Can someone help me fix this code to where it works, and is done right? I know it's hacked together ,but it didn't seem to have any problems until today. I have not updated anything, don't know what the deal is. Plugin Name: MyPlugin Example Version: 1.0.1 if ( ! class_exists("MyPlugin") ) { class MyPlugin { var $db_version = "1.0"; //not used yet function init() { //Nothing as of now. } function activate() { global $wp_rewrite; $this-flush_rewrite_rules(); } function pushoutput( $id ) { $output-out =' The output worked!'; $this-output( $output ); } function output( $output ) { ob_start(); ob_end_clean(); header( 'Cache-Control: no-cache, must-revalidate' ); header( 'Expires: Mon, 26 Jul 1997 05:00:00 GMT' ); header( 'Content-type: application/json' ); echo json_encode( $output ); //Must encode this... } function flush_rewrite_rules() { global $wp_rewrite; $wp_rewrite-flush_rules(); } function createRewriteRules( $rewrite ) { global $wp_rewrite; $new_rules = array( 'MyPlugin/(.+)' = 'index.php?MyPlugin=' . $wp_rewrite-preg_index(1) ); if ( ! is_array($wp_rewrite-rules) ) { $wp_rewrite-rules = array(); } $wp_rewrite-rules = $new_rules + $wp_rewrite-rules; return $wp_rewrite; } function add_query_vars( $qvars ) { $qvars[] = 'MyPlugin'; return $qvars; } function template_redirect_intercept() { global $wp_query; if ( $wp_query-get('MyPlugin') ) { $id = $wp_query-query_vars['MyPlugin']; $this-pushoutput( $id ); exit; } } } } if ( class_exists("MyPlugin") ) { $MyPluginCode = new MyPlugin(); } if ( isset($MyPluginCode) ) { register_activation_hook( __file__, array($MyPluginCode, 'activate') ); add_action( 'admin-init', array(&$MyPluginCode, 'flush_rewrite_rules') ); //add_action( 'init', array(&$MyPluginCode, 'init') ); add_action( 'generate_rewrite_rules', array(&$MyPluginCode, 'createRewriteRules') ); add_action( 'template_redirect', array(&$MyPluginCode, 'template_redirect_intercept') ); // add_filter( 'query_vars', array(&$MyPluginCode, 'add_query_vars') ); }

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  • un able to phpbb session login through my own website

    - by pmms
    We are unable to login phpbb through my own site using session. please help us. <?php session_start(); include "conn.php"; include "PHPBB_Login.php"; echo $_SESSION['username']; $data=mysql_query("select * from people where username='".$_SESSION['username']."'"); $data_data=mysql_fetch_array($data); echo $_SESSION['username']; $_SESSION['username']=$data_data['username']; echo $_SESSION['username']; $phpbbq=mysql_query("select user_id from phpbb_users where username='".$data_data['username']."'"); $phpbbr=mysql_fetch_array($phpbbq); //echo $phpbbr['user_id']; $id=$phpbbr['user_id']; $phpbb-login($id ); class PHPBB_Login { function PHPBB_Login() { } function login($phpbb_user_id) { $id=$phpbb_user_id ; global $db, $board_config; global $HTTP_COOKIE_VARS, $HTTP_GET_VARS, $SID; // Setup the phpbb environment and then // run through the phpbb login process // You may need to change the following line to reflect // your phpBB installation. require_once('./phpBB-3.0.7-PL1/phpBB3/config.php'); define('IN_PHPBB',true); // You may need to change the following line to reflect // your phpBB installation. $phpbb_root_path = "./phpBB-3.0.7-PL1/phpBB3/"; require_once( $phpbb_root_path . "extension.inc" ); require_once( $phpbb_root_path . "common.php" ); // return session_begin($id,$user_ip, PAGE_INDEX, FALSE, TRUE ); return session_begin($id,$user_ip, PAGE_INDEX, FALSE, $autologin, '0'); } function logout( $session_id, $phpbb_user_id ) { global $db, $lang, $board_config; global $HTTP_COOKIE_VARS, $HTTP_GET_VARS, $SID; // Setup the phpbb environment and then // run through the phpbb login process // You may need to change the following line to reflect // your phpBB installation. require_once( './phpBB-3.0.7-PL1/phpBB3/config.php' ); define('IN_PHPBB',true); // You may need to change the following line to reflect // your phpBB installation. $phpbb_root_path = "./phpBB-3.0.7-PL1/phpBB3/"; require_once( $phpbb_root_path . "extension.inc" ); require_once( $phpbb_root_path . "common.php" ); session_end( $session_id, $phpbb_user_id ); // session_end doesn't seem to get rid of these cookies, // so we'll do it here just in to make certain. setcookie( $board_config[ "cookie_name" ] . "_sid", "", time() - 3600, " " ); setcookie( $board_config[ "cookie_name" ] . "_mysql", "", time() - 3600, " " ); } } ?

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  • Catch Exception only in release

    - by Cicik
    HI, I have one global generic exception handler(catch ex as Exception) for all unhandled exceptions from application. But in debug mode(app runs from VS) I don`t want that exceptions go to this global handler. Better for me is when VS stops app on place when exception occurs. How can I do this, or is there some better approach for this? thanks

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  • Jquery get selected checkboxes

    - by kevin
    Hi id like to get the list of selected checkboxes ina page, actually what I really need is th get the text of the element next to the checkbox which is a html element the code is below and its not working the html is as follows <script type="text/javascript"> $(document).ready(function () { $('#target').click(function () { alert("in"); var checkValues = []; $('input[name=checkboxlist]:checked').each(function() { alert($(this)val()); checkValues.push($(this)val()); }); }); }); </script> HTML: <ul id="7b1fe2bd-1b26-4185-8cd9-aec10e652a70"> <li>Structured Products<input type="checkbox" name="checkboxlist"</li> <li>Global FID <ul> <li>PowerPoint Presentations<input type="checkbox" name="checkboxlist"</li> <li>Global Deck <ul> <li>Test1<input type="checkbox" name="checkboxlist"</li> <li>Test2<input type="checkbox" name="checkboxlist"</li> <li>Test3<input type="checkbox" name="checkboxlist"</li> </ul> <input type="checkbox" name="checkboxlist"</li> <li>Credit Default Swaps Position <ul> <li>Test4<input type="checkbox" name="checkboxlist"</li> <li>Test5<input type="checkbox" name="checkboxlist"</li> </ul> <input type="checkbox" name="checkboxlist"</li> <li>Thought Leadership<input type="checkbox" name="checkboxlist"</li> <li>Fixed Income Perspectives<input type="checkbox" name="checkboxlist"</li> <li>Public Policy Information and Regulatory<input type="checkbox" name="checkboxlist"</li> <li>Regional FID<input type="checkbox" name="checkboxlist"</li> </ul> <input type="checkbox" name="checkboxlist"</li> <li>Global Rates<input type="checkbox" name="checkboxlist"</li> <li>Global Credit Products<input type="checkbox" name="checkboxlist"</li> <li>FX<input type="checkbox" name="checkboxlist"</li> <li>Emerging Markets<input type="checkbox" name="checkboxlist"</li> <li>Commodities<input type="checkbox" name="checkboxlist"</li> <li>testcat<input type="checkbox" name="checkboxlist"</li> <li>testcat<input type="checkbox" name="checkboxlist"</li> </ul>

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  • Function doesn't work, but it must work

    - by Artem
    private void Main_OnLayoutUpdated(object sender, EventArgs e) { label1.Content = Classes.Global.X.ToString(); Classes.Global.PositionChanged(this); } PositionChanged writes to X new x-position of window. It works, but as soon as I delete label1 it stops working. No errors.

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  • Mysql password hashing method old vs new

    - by The Disintegrator
    I'm trying to connect to a mysql server at dreamhost from a php scrip located in a server at slicehost (two different hosting companies). I need to do this so I can transfer new data at slicehost to dreamhost. Using a dump is not an option because the table structures are different and i only need to transfer a small subset of data (100-200 daily records) The problem is that I'm using the new MySQL Password Hashing method at slicehost, and dreamhost uses the old one, So i get $link = mysql_connect($mysqlHost, $mysqlUser, $mysqlPass, FALSE); Warning: mysql_connect() [function.mysql-connect]: OK packet 6 bytes shorter than expected Warning: mysql_connect() [function.mysql-connect]: mysqlnd cannot connect to MySQL 4.1+ using old authentication Warning: mysql_query() [function.mysql-query]: Access denied for user 'nodari'@'localhost' (using password: NO) facts: I need to continue using the new method at slicehost and i can't use an older php version/library The database is too big to transfer it every day with a dump Even if i did this, the tables have different structures I need to copy only a small subset of it, in a daily basis (only the changes of the day, 100-200 records) Since the tables are so different, i need to use php as a bridge to normalize the data Already googled it Already talked to both support stafs The more obvious option to me would be to start using the new MySQL Password Hashing method at dreamhost, but they will not change it and i'm not root so i can't do this myself. Any wild idea? By VolkerK sugestion: mysql> SET SESSION old_passwords=0; Query OK, 0 rows affected (0.01 sec) mysql> SELECT @@global.old_passwords,@@session.old_passwords, Length(PASSWORD('abc')); +------------------------+-------------------------+-------------------------+ | @@global.old_passwords | @@session.old_passwords | Length(PASSWORD('abc')) | +------------------------+-------------------------+-------------------------+ | 1 | 0 | 41 | +------------------------+-------------------------+-------------------------+ 1 row in set (0.00 sec) The obvious thing now would be run a mysql SET GLOBAL old_passwords=0; But i need SUPER privilege to do that and they wont give it to me if I run the query SET PASSWORD FOR 'nodari'@'HOSTNAME' = PASSWORD('new password'); I get the error ERROR 1044 (42000): Access denied for user 'nodari'@'67.205.0.0/255.255.192.0' to database 'mysql' I'm not root... The guy at dreamhost support insist saying thet the problem is at my end. But he said he will run any query I tell him since it's a private server. So, I need to tell this guy EXACTLY what to run. So, telling him to run SET SESSION old_passwords=0; SET GLOBAL old_passwords=0; SET PASSWORD FOR 'nodari'@'HOSTNAME' = PASSWORD('new password'); grant all privileges on *.* to nodari@HOSTNAME identified by 'new password'; would be a good start?

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