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• Getting IIS Worker Process Crash dumps

  - by CVertex

  I'm doing something bad in my ASP.NET app. It could be the any number of CTP libraries I'm using or I'm just not disposing something properly. But when I redeploy my ASP.NET to my Vista IIS7 install or my server's IIS6 install I crash an IIS worker process. I've narrowed the problem down to my HTTP crawler, which is a multithreaded beast that crawls sites for useful information when asked to. After I start a crawler and redeploy the app over the top, rather than gracefully unloading the appDomain and reloading, an IIS worker process will crash (popping up a crash message) and continue reloading the app domain. When this crash happens, where can I find the crash dump for analysis?

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• Objective-C @class / import best practice

  - by Winder

  I've noticed that a lot of Objective-C examples will forward declare classes with @class, then actually import the class in the .m file with an import. I understand that this is considered a best practice, as explained in answers to question: http://stackoverflow.com/questions/322597/objective-c-class-vs-import Coming from C++ this feels backwards. I would normally include all needed .h files in the new classes header file. This seems useful since it would make the compiler generate a warning when two classes include each other, at which point I can decide whether this is a bad thing or not then use the same Objective-C style and forward declare the class in the header and include it in the .cpp file. What is the benefit of forward declaring @class and importing in the implementation file? Should it be a best practice in C++ to forward declare classes rather than including the header file? Or is it wrong to think of Objective-C and C++ in these similar terms to begin with?

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• Using Logger Filter with Not Equal condition Log4net

  - by Mubashar Ahmad

  Dears I am using log4net in my c# application i have different logger which insert text lines in my single log file. But now i wanted to add a new logger which should not post log entries in the same file rather i should log in a different file so i configured a new fileAppender, After doing whatever i found on the net i am able to create a different file for my new logger but it echoes the same value in first log file too. so please if anybody knows about the use of LogFilters so that i could add "Logger < New logger " match in previously configured appender. Regards Mubashar

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• Hibernate - hibernate.hbm2ddl.auto = validate

  - by azp74

  I am interested in how hibernate.hbm2ddl.auto=validate actually works and I am struggling to find comprehensive documentation. We've recently discovered production system was affected by http://opensource.atlassian.com/projects/hibernate/browse/HHH-3532 (Hibernate matches foreign keys on name, rather than signature and so will recreate them for you) and hibernate.hbm2ddl.auto=update is being removed from our next release. I would be quite happy to just get rid of hibernate.hbm2ddl.auto altogether and manage our database ourselves. However, not all my colleagues share this world view and some are keen to add back in hibernate.hbm2ddl.auto=validate. I'm concerned this will hit the same problem and I'm interested in finding more documentation about how this validation actually works. The Hibernate Community Documentation (http://docs.jboss.org/hibernate/core/3.3/reference/en/html/session-configuration.html) really just makes reference to the values. Does anyone have any good documentation pointers, or any real life experience of using validate in a production system?

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• Reading multiple files with PHPExcel

  - by KaOSoFt

  Hello there. I just recently started using this library (the one from CodePlex), but I ran into some issues. My goal is to use it so I can process some data from multiple Excel files, and send such data to a database, per file. I'm doing something like: foreach( $file_list as $file ) { $book = PHPExcel_IOFactory::load( $path . $file ); } So, inside the foreach I'm (for now) just showing the data to the user, but after five files, I get a memory error: Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 50688 bytes) in /var/www/test/classes/PHPExcel/Shared/OLERead.php on line 76 Is there a way to __destruct the object after each file is loaded, so space is reserved (made free) for the next file, instead of accumulating it, or do you rather know of a reason and work-around for this? Please let me know any suggestions you have. Thanks in advance.

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• Git under windows: MSYS or Cygwin?

  - by Joce

  I plan to migrate my projects over to git, and I'm currently wondering which is the best and / or most stable option under windows. From what I gather I basically have 2.5 options: MSYSgit git under Cygwin (aka 2.5) MSYSgit from a Cygwin prompt (given that Cygwin git is already installed). Note: IMO Cygwin in itself is a big plus as you can have access to pretty much all the *nix command line tools, as where with MSYSgit bash, you only have access to a rather small subset of these tools. Given that, what option would you suggest?

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• Huge EAR deployment

  - by bozo

  Hello all, I'm trying to figure out how to deploy a huge (40-50 MB) EAR file to the server through a rather slow VPN connection. The EAR contains EJB and WAR projects created in Glassfish, and 90% of the file size is from external dependency libraries used. Has anyone came up with a strategy for elegant deployment to production system from Netbeans, where the deployment (over the network) is done only for what is really needed (i.e. just one WAR, not the entire EAR, or just one lib, not the entire libraries subproject). Related to the first point, how to separate external dependency libs from project in Netbeans, so that the project compiles on development machine, but when the EAR/WAR/EJB is created it does not contain all the dependency JARs, which are making it huge. Perhaps we need to write custom ant script? Start using maven? Thank you all for kind answers, Bozo

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• Converting C# void* to byte[]

  - by Yurik

  In C#, I need to write T[] to a stream, ideally without any additional buffers. I have a dynamic code that converts T[] (where T is a no-objects struct) to a void* and fixes it in memory, and that works great. When the stream was a file, I could use native Windows API to pass the void * directly, but now I need to write to a generic Stream object that takes byte[]. Can anyone suggest a hack way to create a dummy array object which does not actually have any heap allocations, but rather points to an already existing (and fixed) heap location. This is the pseudo-code that I need: void Write(Stream stream, T[] buffer) { fixed( void* ptr = &buffer ) // done with dynamic code generation { int typeSize = sizeof(T); // done as well byte[] dummy = (byte[]) ptr; // <-- how do I create this fake array? stream.Write( dummy, 0, buffer.Length*typeSize ); } }

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• Are there any JSF components for implementing breadcrumb navigation?

  - by kazanaki

  As far as I know there are two "kinds" of breadcrumbs. The static/hierarchy one Works like a stack Entries are pushed when a user goes "deeper" into the site Entries are poped when user goes "up" into the site Is the same for all users (for a given page) Shows location rather than history A simple Example would be HOME - BIG CATEGORY - SMALL CATEGORY - ARTICLE The dynamic/historical one Works like a queue Entries are pushed at the end when a user goes to another page Entries are removed from the front when the maximum size is reached Is different for each user, since it is personalized. Shows timeline/history instead of location. A simple example would be SMALL CATEGORY - HOME - BIG CATEGORY - HOME The question is: Are there any ready-made JSF component for these types of navigation?

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• Using sectioned tables from an sqlite file with an iPhone uitableview

  - by Chris

  I am currently trying to make a sectioned table like this: Section 1: Entry 1 Entry 2 Entry 3 Section 2: Entry 4 Entry 5 Entry 6 Section 3: Entry 7 Entry 8 ... However, using this code: Event *lists = (Event *)[eventList objectAtIndex:indexPath.row]; accessStatement = "select * from DatabaseName"; [self findEvents]; // Code that builds each object's strings from database cell.textLabel.text = lists.name; Section 1: Entry 1 Entry 2 Entry 3 Section 2: Entry 1 Entry 2 Entry 3 Section 3: Entry 1 Entry 2 ... It keeps on repeating itself. How do I make the index so that it continues in each section rather than restarts? Thanks in advance.

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• Matrix inversion in OpenCL

  - by buchtak

  Hi, I am trying to accelerate some computations using OpenCL and part of the algorithm consists of inverting a matrix. Is there any open-source library or freely available code to compute lu factorization (lapack dgetrf and dgetri) of matrix or general inversion written in OpenCL or CUDA? The matrix is real and square but doesn't have any other special properties besides that. So far, I've managed to find only basic blas matrix-vector operations implementations on gpu. The matrix is rather small, only about 60-100 rows and cols, so it could be computed faster on cpu, but it's used kinda in the middle of the algorithm, so I would have to transfer it to host, calculate the inverse, and then transfer the result back on the device where it's then used in much larger computations.

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• Pre-commit hooks getting partial committed file list

  - by Rex Xia

  I know running git-diff and other tools can identify the changes in the repository, but when I do a partial commit, I need to pass only the committed files (rather than the entire set of files that are touched) to the pre-commit hook. For example, I modified three files and commit only two, and I want the pre-commit hook to know the name of the two files. git status --porcelain M A.c M B.c M C.h then I execute: git commit -m "two files only" A.c B.c How can the pre-commit hook get hold of the list of the two files only?

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• Why "alt" attribute for <img> tag has been considered mandatory by the HTML validator .. ?

  - by infant programmer

  Is there any logical or technical reason (with the W3C validation) for making alt as required attribute .. This is my actual problem:though my page is perfect enough with respect to W3C validation rules .. Only error I am getting is line XX column YY - Error: required attribute "ALT" not specified I know the significance of "alt" attribute and I have omitted that where it is unnecessary .. (to be more elaborate .. I have added the image to increase the beauty of my page and I don't want alt attribute to show irrelevant message to the viewer) getting rid of the error is secondary .. rather I am curious to know whether is it a flaw with validation rules .. ?? I thank stackOverflow and all the members who responded me .. I got my doubt clarified .. :-)

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• Is it possible to disable a ScrollViewer from inside the ScrollViewer?

  - by gehho

  From a UserControl, I would like to disable a ScrollViewer which is defined one level higher. My scenario looks something like this: <!-- ... --> <ScrollViewer VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Disabled"> <custom:MyUserControl ... /> </ScrollViewer> Now, I would like to disable the ScrollViewer from within MyUserControl. Is this possible? Background: I have defined a custom TabControl style where I added a ScrollViewer for each item's content automatically. However, in one case, I do not want to use that ScrollViewer, but rather make the content size to the available space, whereas in all other cases I do want to use the ScrollViewer. Any ideas? Of course, I could add a ScrollViewer to every tab item manually, except for the one item, but that is not what I want.

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• Does the Microsoft SQL Server native client support IDBAsynchNotify?

  - by Aaron Klotz

  I'm working on some OLE DB code that runs queries on MS SQL Server via ICommand::Execute. I'm converting this code to operate asynchronously by setting the DBPROPVAL_ASYNCH_INITIALIZE property on the command before executing. I'd prefer to register a IDBAsynchNotify sink so that my code can be notified of events, as opposed to polling or blocking via ISSAsynchStatus. The documentation for ICommand::Execute does not show IConnectionPointContainer as an acceptable riid parameter, but the same document, when discussing the DB_S_ASYNCHRONOUS return code, suggests that it is possible to request an IConnectionPointContainer interface that I could use to register my event sink. When I call ICommand::Execute, passing IID_IConnectionPointContainer as the riid parameter, I receive the E_NOINTERFACE error. I also tried setting the DBPROP_IConnectionPointContainer property before Execute but I received the same results. If I have to, I'll use ISSAsynchStatus, but I'd much rather use IDBAsynchNotify. Is it possible?

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• C# WCF/WebService: Interoperable exception handling.

  - by michael paul

  I understand that WCF will convert an exception into a fault and send it back as a SOAP message, but I was wondering if this is truly interoperable. I guess I'm having a tough time trying to figure out this possible scenario: Client (Java) calls a WCF Service (LoginService). Server checks for proper authorization, user authorization fails. Server throws an UnauthorizedAccessException. WCF converts this into a Fault somehow. (* - See Below As Well) Client has to be able to know how to read this Fault. I guess I'm just having a tough time understanding how this could still be interoperable because it is expecting Java to know how to translate a SOAP Fault that .NET encodes from an UnauthorizedAccessException. Also, how does .NET actually convert the exception to a fault, what goes in as the fault code, name, etc. Some of the things seem to be "duh"s like perhaps the Fault Name is "UnauthorizedAccessException", but I'd rather know for sure than guess.

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• SQLite character encoding for Google Gears

  - by MHD

  We're using jQuery to get a JSON-string from our server (UTF-8 response, also UTF-8 request through jQuery) and put this JSON into a Google Gears WorkerPool. This workerpool processes the JSON and stores it into a Gears database (SQLite). It turns out that, apparently, SQLite stores data using iso-8859-1 rather than UTF-8. Since we're trying to store user names that might contain Cyrillic characters (and others that you might encounter in Europe), this goes horribly wrong. Can anyone tell me how to change the character encoding in either the Gears WorkerPool or the SQLite database that Gears employs? Of course, if I'm looking in the wrong direction with my problem, feel free to offer alternatives! Unfortunately, HTML5 isn't an option as we're supposed to support IE7 primarily.

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• Why can't the JVM just make autoboxing "just work"?

  - by Pyrolistical

  Autoboxing is rather scary. While I fully understand the difference between == and .equals I can't but help have the follow bug the hell out of me: final List<Integer> foo = Arrays.asList(1, 1000); final List<Integer> bar = Arrays.asList(1, 1000); System.out.println(foo.get(0) == bar.get(0)); System.out.println(foo.get(1) == bar.get(1)); That prints true false Why did they do it this way? It something to do with cached Integers, but if that is the case why don't they just cache all Integers used by the program? Or why doesn't the JVM always auto unbox to primitive? Printing false false or true true would have been way better.

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• Condition in ASP Repeater

  - by Abdel Olakara

  Hi all, I am trying to put a condition into my ASP repeater tag. I have a table being created and one of the td items is a link. The problem is I need to create a link upon checking the value in one the variable that is in the repeater container. Here is my code: <td><%#((VWApp.Code.TrackDM)Container.DataItem).CdNo%></td> <td><%#((VWApp.Code.TrackDM)Container.DataItem).ShippingNo%></td> Now i need to check the value of ShippingNo and rather than displaying it need to display a link. i tried to write an if condition like this: if(((VWApp.Code.TrackDM)Container.DataItem).ShippingNo. .. ) { // do processing and generate a link that needs to displayed } But i get error when trying to do this. Can anybody guide me to the right way of doing this? Any ideas and suggests are highly appreciated.

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• The right way to manage subviews in a UIControl

  - by ed94133

  (iPhone SDK 3.x:) I have a UIControl subclass that creates a different number of subviews depending on the length of an NSArray property. Please take my word for it that this needs to be a UIControl rather than a UIView. Currently I implement subview management in drawRect, beginning by removing all subviews and then creating the appropriate number based on the property. I don't think this is very good memory management and I'm not sure if drawRect is really the appropriate place to add subviews. Any thoughts on the best way to handle this pattern? Thank you.

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• Memory Efficient file append

  - by lboregard

  i have several files whose content need to be merged into a single file. i have the following code that does this ... but it seems rather inefficient in terms of memory usage ... would you suggest a better way to do it ? the Util.MoveFile function simply accounts for moving files across volumes private void Compose(string[] files) { string inFile = ""; string outFile = "c:\final.txt"; using (FileStream fsOut = new FileStream(outFile + ".tmp", FileMode.Create)) { foreach (string inFile in files) { if (!File.Exists(inFile)) { continue; } byte[] bytes; using (FileStream fsIn = new FileStream(inFile, FileMode.Open)) { bytes = new byte[fsIn.Length]; fsIn.Read(bytes, 0, bytes.Length); } //using (StreamReader sr = new StreamReader(inFile)) //{ // text = sr.ReadToEnd(); //} // write the segment to final file fsOut.Write(bytes, 0, bytes.Length); File.Delete(inFile); } } Util.MoveFile(outFile + ".tmp", outFile); }

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• Module autoloader in ZF

  - by ChrisRamakers

  The manual on Zend_Application_Module_Autoloader states the following: When using module bootstraps with Zend_Application, an instance of Zend_Application_Module_Autoloader will be created by default for each discrete module, allowing you to autoload module resources. Source: http://framework.zend.com/manual/zh/zend.loader.autoloader-resource.html#zend.loader.autoloader-resource.module This requires me to create an empty bootstrap class for each of my modules or else resource autoloading per module won't work with the build-in autoloader. Now I have two questions What is a discrete module? Is there a way to have this resource autoloader registered by default for each module without the need to create a bootstrap file for each module? I want it available in each module and creating so many empty bootstrap classes is something i'd rather prevent.

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• zsh: command not found: ls

  - by ABach

  I'm having a rather strange problem with zsh. When I start up my shell, everything - functions, environment vars, aliases, etc. - all work fine. I've created the following function and sourced it in zsh: clean() { for i in /tmp/* do echo $i done } Running clean in the terminal works as expected, in that it prints out all the files in /tmp/. Afterward, however, trying any command - for example, ls - produces this: zsh: command not found: ls I have several other functions that work just fine, which leads me to believe that somehow, that loop is causing the problem. At any rate, this is very frustrating and I would sincerely appreciate the community's eyes. Thanks!

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• .NET SortedDictionary But Sorted By Values

  - by Michael Covelli

  I need a data structure that acts like a SortedDictionary<int, double> but is sorted based on the values rather than the keys. I need it to take about 1-2 microseconds to add and remove items when we have about 3000 items in the dictionary. My first thought was simply to switch the keys and values in my code. This very nearly works. I can add and remove elements in about 1.2 microseconds in my testing by doing this. But the keys have to be unique in a SortedDictionary so that means that values in my inverse dictionary would have to be unique. And there are some cases where they may not be. Any ideas of something in the .NET libraries already that would work for me?

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• Importing a function/class from a Python module of the same name

  - by Brendan

  I have a Python package mymodule with a sub-package utils (i.e. a subdirectory which contains modules each with a function). The functions have the same name as the file/module in which they live. I would like to be able to access the functions as follows, from mymodule.utils import a_function Strangely however, sometimes I can import functions using the above notation, however other times I cannot. I have not been able to work out why though (recently, for example, I renamed a function and the file it was in and reflected this rename in the utils.__init__.py file but it no longer imported as a functions (rather as a module) in one of my scripts. The utils.__init__.py reads something like, __all__ = ['a_function', 'b_function' ...] from a_function import a_function from b_function import b_function ... mymodule.__init__.py has no reference to utils Ideas?

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