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• Tee a Pipe Asynchronously

  - by User1

  I would like to write the same information to two pipes, but I don't want to wait for the first pipe to read. Here's an example mkfifo one mkfifo two echo hi | tee one two & cat one & cat two & cat one does not start reading until cat two is run. Is there a way to make cat one run without waiting?

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• mathing string in python

  - by nani

  Write two functions, called countSubStringMatch and countSubStringMatchRecursive that take two arguments, a key string and a target string. These functions iteratively and recursively count the number of instances of the key in the target string. You should complete definitions forthe remaining problems, we are going to explore other substring matching ideas. These problems can be solved with either an iterative function or a recursive one. You are welcome to use either approach, though you may find iterative approaches more intuitive in these cases of matching linear structures

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• Service invoker in JSF

  - by Milan

  Hello everybody, I need to write invoker for web services in JSF. Any guidlines you can give me? Which lib(API) should I use? Thanks

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• Multimonitor taskbar in .Net

  - by kalan

  I have an idea to write a multimotor taskbar application in c# for windows xp. So, does anyone have any information how to put a taskbar on the second monitor, to make it use windows styles, to prevent aplications running on the second monitor to appear in default taskbar, so on... Any help would be ...helpful )))

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• wxPython - How can I display a html formatted string in wx.RichTextCtrl

  - by wxpydon

  Hello, I'm trying to display some string (html formatted) in a Richtext Ctrl. In my code I tried to use it this way (self.txtmain is the RichTextCtrl): out = StringIO() htmlhandler = rt.RichTextHTMLHandler() buffer = self.txtmain.GetBuffer() buffer.AddHandler(htmlhandler) out.write(string) out.seek(0) htmlhandler.LoadStream(buffer, out) self.txtmain.Refresh() No errors are issued, but the RichTextCtrl windows is not updated. What am I missing here?

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• Can't install Ruby on Rails on Wamp

  - by janoChen

  I followed this tutorial: http://stackoverflow.com/questions/2025449/how-to-install-ruby-on-rails-alongside-wampserver After adding D:\wamp\ruby\bin (my wamp folder is in D:) to my Path and write gem install rails in the command line I get 2 error which says that the following files couldn't be found: SSLEAY32.dll zlib.dll Here is the screenshot:

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• Can we only use the front-end of wordpress without any front-end ?

  - by Tristan

  Hello, i just asked a question few minutes ago which led me to this one : I want to know if there is any chance to use only the back-end of wordpress ? I mean, link my admin interface to post news link my visitor interface on my website to the wordpress news so the visitor can access the news So the visitor never find out that i'm using wordpress to generate the news and handle their comments and write my news ? Maybe it's possible but there is no point by doing so ? Thank you

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• Remove leading zero's from alphanumeic text

  - by cedar715

  I've seen questions to prefix zeros here in SO. But not the other way !! Can you guys suggest me how to remove the leading zeros in alphanumeric text. Are there any built-in APIs or do I need to write a method to trim the leading zero's? Example: 01234 converts to 1234 0001234a converts to 1234a 001234-a converts to 1234-a 101234 remains as 101234 2509398 remains as 2509398 123z remains as 123z 000002829839 converts to 2829839

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• localhost problem internet explorer

  - by Alvi

  Hello everyone I have installed xampp 1.7.3. After starting apache and mysql service when I write http://localhost/ in the internet explorer address bar it shows 'The page cannot be displayed'. But for Firefox it creates no problem and shows Xampp index.php page. Now how can I solve this problem? Thanks in advance

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• How can I return a Future object with Spring without writing concurrency logic?

  - by Johan

  How can I return a java.util.concurrent.Future object with a Receipt object and only use the @javax.ejb.Asynchronous annotation? And do I need any extra configuration to let Spring handle ejb annotations? I don't want to write any concurrency logic myself. Here's my attempt that doesn't work: @Asynchronous public Future<Receipt> execute(Job job) { Receipt receipt = timeConsumingWork(job); return receipt; }

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• django import forms basic doubt

  - by webvulture

  I have seen people writing forms in mdoels or in forms.py? Is it the case I can actually write it anywhere say in blah.py and just import it wherever necessary?

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• Add a parameter to a google maps geocoder funcion

  - by kree

  I want to create a geocoder function, which write the result to it's parameter. function geoCode(latlng,div) { gc.geocode({'latLng': latlng}, function (result, status) { if (status == google.maps.GeocoderStatus.OK) { new google.maps.Marker({ position: result[0].geometry.location, map: map }); jq(div).html(result[0].formatted_address); } }); How can I add the div parameter to the geocoder function? Any help would be appreciated.

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• How to convert map to url query string?

  - by Ula Krukar

  Do you know of any utility class/library, that can convert Map into URL-friendly query string? Example: I have a map: - "param1"=12, - "param2"="cat" I want to get: param1=12&param2=cat. PS. I know I can easily write it myself, I am just surprised that I cannot find it anywhere (I checked Apache Commons so far).

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• Will C++/CLI give me control over low-level devices like audio?

  - by schmoopy

  I was wondering - how much limitation is there to C++/CLI compared to classic C++ (chuckle) - I was wanting to write an application that I cannot do with c# -- I was wanting to be able to connect to the PC's audio device and detect audio (for example) - Is this something I can do with C++/CLI? I have tried using NAudio with c#, but i have been able to do this. What other advantages would C++/CLI or C++ give me over c#?

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• lock-free memory reclamation with 64bit pointers

  - by JDonner

  Herlihy and Shavit's book (The Art of Multiprocessor Programming) solution to memory reclamation uses Java's AtomicStampedReference<T>;. To write one in C++ for the x86_64 I imagine requires at least a 12 byte swap operation - 8 for a 64bit pointer and 4 for the int. Is there x86 hardware support for this and if not, any pointers on how to do wait-free memory reclamation without it?

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• Using the framework of the problems encountered SharpArch

  - by livebean

  I try to test SharpArch frame, directly in the provided example code to write some code to add test data, but unsuccessful, do not have any information to me! ICustomerRepository customerRepository = new CustomerRepository(); Customer customer = new Customer("Jack Chen"); customer.SetAssignedIdTo("JACKK"); customerRepository.Save(customer); I just had an instance of CustomerRepository operation, do not understand why there is no new data on the data table

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• F# and ASP.NET

  - by pistacchio

  Hi, is it possible to write ASP.NET (MVC) applications with F# code? If yes, how? What possible benefits would this provide? Thanks.

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• C# How to compress .ashx content?

  - by Martijn

  In my web application I use an ashx file to write a file to the browser. I've noticed that there's no compression over the .ashx file, but only over my .aspx files. Is it possible to compress .ashx? And if it is possible, how?

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• Using visual studio 6 c++ compiler from within emacs

  - by jörg

  Hey guys, I'm just getting started with c++ development and I would like to use emacs to write the code and then compile and run it from within emacs using the visual studio 6 compiler. I have already googled around a bit but just can't seem to find an explanation of how this is done. Any pointers? Thanks for your help, joerg

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• Not sure what happens to my apps objects when using NSURLSession in background - what state is my app in?

  - by Avner Barr

  More of a general question - I don't understand the workings of NSURLSession when using it in "background session mode". I will supply some simple contrived example code. I have a database which holds objects - such that portions of this data can be uploaded to a remote server. It is important to know which data/objects were uploaded in order to accurately display information to the user. It is also important to be able to upload to the server in a background task because the app can be killed at any point. for instance a simple profile picture object: @interface ProfilePicture : NSObject @property int userId; @property UIImage *profilePicture; @property BOOL successfullyUploaded; // we want to know if the image was uploaded to out server - this could also be a property that is queryable but lets assume this is attached to this object @end Now Lets say I want to upload the profile picture to a remote server - I could do something like: @implementation ProfilePictureUploader -(void)uploadProfilePicture:(ProfilePicture *)profilePicture completion:(void(^)(BOOL successInUploading))completion { NSUrlSession *uploadImageSession = ..... // code to setup uploading the image - and calling the completion handler; [uploadImageSession resume]; } @end Now somewhere else in my code I want to upload the profile picture - and if it was successful update the UI and the database that this action happened: ProfilePicture *aNewProfilePicture = ...; aNewProfilePicture.profilePicture = aImage; aNewProfilePicture.userId = 123; aNewProfilePicture.successfullyUploaded = NO; // write the change to disk [MyDatabase write:aNewProfilePicture]; // upload the image to the server ProfilePictureUploader *uploader = [ProfilePictureUploader ....]; [uploader uploadProfilePicture:aNewProfilePicture completion:^(BOOL successInUploading) { if (successInUploading) { // persist the change to my db. aNewProfilePicture.successfullyUploaded = YES; [Mydase update:aNewProfilePicture]; // persist the change } }]; Now obviously if my app is running then this "ProfilePicture" object is successfully uploaded and all is well - the database object has its own internal workings with data structures/caches and what not. All callbacks that may exist are maintained and the app state is straightforward. But I'm not clear what happens if the app "dies" at some point during the upload. It seems that any callbacks/notifications are dead. According to the API documentation- the uploading is handled by a separate process. Therefor the upload will continue and my app will be awakened at some point in the future to handle completion. But the object "aNewProfilePicture" is non existant at that point and all callbacks/objects are gone. I don't understand what context exists at this point. How am I supposed to ensure consistency in my DB and UI (For instance update the "successfullyUploaded" property for that user)? Do I need to re-work everything touching the DB or UI to correspond with the new API and work in a context free environment?

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• How to pick random (small) data samples using Map/Reduce?

  - by Andrei Savu

  I want to write a map/reduce job to select a number of random samples from a large dataset based on a row level condition. I want to minimize the number of intermediate keys. Pseudocode: for each row if row matches condition put the row.id in the bucket if the bucket is not already large enough Have you done something like this? Is there any well known algorithm? A sample containing sequential rows is also good enough. Thanks.

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• How to load jni from sd card on android 2.1?

  - by user263423

  I want to load third-party jni library in runtime. I've tried to load directly from sdcard. It expectedly failed. I've tried to copy library from sdcard to /data/data/app/ and then System.load(/data/data/libjni.so) It works on HTC HERO, but fails on HTC Legend with Android 2.1. it fails during execution of native code and write to log uninformative stack trace Any other way to do it?

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• Create thumbnail and reduce image size

  - by oo

  I have very large images (jpg) and i want to write a csharp program to loop through the files and reduce the size of each image by 75%. I tried this: Image thumbNail = image.GetThumbnailImage(800, 600, null, new IntPtr()); but the file size is still very large. Is there anyway to create thumbnails and have the filesize be much smaller?

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• Creating content input form with custom theme (Drupal)

  - by AndrewSmith

  I'm creating a site which I want to place content input form in custom themed template. I opted to do this because I wanted the whole site to be looked uniform. That said, I'm not sure as to what is the best approach to do this. Is it proper to invoke hook_insert/delete/update and hook_perm/hook_access by myself or is there anyway I can still use my custom theme and write a code in a way that drupal would take care of invoking appropriate hooks accordingly? Thanks in advance PS : I'm on drupal 6.x

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• MySQL Single Query Benchmarking Strategies

  - by Pepper

  Hello, I have a slow mySQL query in my application that I need to re-write. The problem is, it's only slow on my production server and only when it's not cached. The first time I run it, it will take 12 seconds, then anytime after that it'll be 500 milliseconds. Is there an easy way to test this query without it hitting the query cache so I can see the results of my refactoring? Thanks!

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