Search Results

Search found 16894 results on 676 pages for 'block device'.

Page 501/676 | < Previous Page | 497 498 499 500 501 502 503 504 505 506 507 508  | Next Page >

  • Interrupting `while loop` with keyboard in Cython

    - by linello
    I want to be able to interrupt a long function with cython, using the usual CTRL+C interrupt command. My C++ long function is repeatedly called inside a while loop from Cython code, but I want to be able, during the loop, to send an "interrupt" and block the while loop. The interrupt also should wait the longFunction() to finish, so that no data are lost or kept in unknown status. This is one of my first implementation, which obviously doesn't work: computed=0; print "Computing long function..." while ( computed==0 ): try: computed = self.thisptr.aLongFunction() except (KeyboardInterrupt, SystemExit): computed=1 print '\n! Received keyboard interrupt.\n' break; (p.s. self.thisptr is the pointer to the current class which implements aLongFunction() )

    Read the article

  • Can Google App Engine be used for "check for updated" and download binary file web service?

    - by Tofrizer
    Hi, I'm a Google App Engine newbie and would be grateful for any help. I have an iPhone app which sources data from an sqlite db stored localling on the device. I'd like to set up a Google App Engine web service which my iPhone client will talk to and check if there is a newer version of the sqlite database it needs to download. So iPhone client hits the web service with some kind of version number/timestamp and if there is a newer file, the App Engine will notify the client and the client will then request the new database to download which the App Engine will serve. Is it possible to set up a web service in Google App Engine to do this? Could anyone point me to any sample code / tutorials please? Many Thanks

    Read the article

  • Forcing a templated object to construct from a pointer

    - by SalamiArmi
    I have a fictional class: template<typename T> class demonstration { public: demonstration(){} ... T *m_data; } At some point in the program's execution, I want to set m_data to a big block of allocated memory and construct an object T there. At the moment, I've been using this code: void construct() { *m_data = T(); } Which I've now realised is probably not the best idea... wont work under certain cirumstances, if T has a private assignment operator for example. Is there a normal/better way to do what I'm attempting here?

    Read the article

  • Dojo JSON call back always returns an error

    - by Sunny
    Hi Guys, I am using Dojo and making a AJAX call to a JAVA Class and trying to get the output of the program to a Alert box to the client. var showResult = function(result){ console.log("Showing Result()"); var store = new dojo.data.ItemFileReadStore({ data: result}); console.dir(store); store.fetch( { onItem: function(data) { alert("Hie"); }, onError: function(error,request){ alert("ERROR");} }); }; This is my code, showResult basically is call back function from xhr request. I can see console.dir(store) printed onto Firebug but the fetch function always returns the onError block. My store array is of the form {info="Test Message"} and I need to retrieve "Test Message" and display it in a Alert box. Any help?

    Read the article

  • ant support for dynamic target

    - by Li He
    I previous saw some similar questions on stackoverflow but didn't see any solution. I guess the answer could be impossible and I am trying to see who can provide me this confirmation. AFAIK, an ant project contains several targets and each target may have several tasks. There is an task MacroDef that defines a sequential of `things' (tasks I suppose?). I tried to put target inside this block but ant complains the name of the target is missing (I am using the attribute of the macrodef to generate the name of the target). So it could be a dead end. Then I found that by using a task `script', we have access to the Project and can even call addTarget/AddOrReplaceTarget from there. But it seems that the targets I create there have no impact on the running targets. Does that mean ant doesn't support manipulating dependencies at target runtime? Is there any way to generate these targets before ant start building the dependency graph?

    Read the article

  • Modular HTML in Adobe AIR? Is It Possible?

    - by Greg Bulmash
    When I write HTML with a PHP backend, I usually have a single header file and a single footer file with some PHP variables in them. The base skeleton for every page calls the header, contains the body content, and then calls the footer. That way, if I want to make changes to the header sitewide, I change one file. I'm working on developing the UI in my first Adobe AIR app and I'm wondering if there's some way to include such files in an HTML based page template there. Obviously, with the file read/write abilities in AIR, I can write a Javascript routine to pull data from a header file, parse it, and inject it into a placeholder. It just seems like such a kludge. I'm thinking there's gotta be some simple way to import a block of HTML into a page without an iFrame or complex post-processor. Something like a PHP include statement or perhaps the old Server Side Includes. Any methods you guys can recommend?

    Read the article

  • Why is run() not immediately called when start() called on a thread object in java

    - by pi
    Or is it? I have a thread object from: Thread myThread = new Thread(pObject); Where pObject is an object of a class implementing the Runnable interface and then I have the start method called on the thread object like so: myThread.start(); Now, my understanding is that when start() is called, the JVM implicitly (and immediately) calls the run() method which may be overridden (as it is in my case) However, in my case, it appears that the start() method is not called immediately (as desired) but until the other statements/methods are completed from the calling block i.e. if I had a method after the start() call like so: myThread.start(); doSomethingElse(); doSomthingElse() gets executed before the run() method is run at all. Perhaps I am wrong with the initial premise that run() is always called right after the start() is called. Please help! The desired again is making executing run() right after start(). Thanks.

    Read the article

  • Reallocating memory via "new" in C++

    - by BSchlinker
    Quick question regarding memory management in C++ If I do the following operation: pointer = new char [strlen(someinput_input)+1]; And then perform it again, with perhaps a different result being returned from strlen(someinput_input). Does this result in memory being left allocated from the previous "new" statement? IE, is each new statement receiving another block of HEAP memory from the OS, or is it simply reallocating? Assuming I do a final delete pointer[]; will that deallocate any and all memory that I ever allocated via new to that pointer? Thanks

    Read the article

  • In a client-server relationship, should the server always rethrow the exception to the client?

    - by dotnetdev
    I have a set of web services (the server), and an app which consumes this (client). In this sort of relationship, should the server always throw exceptions (ie in the throw block, rethrow the caught exception), and the client catch this. Exceptions which the server can handle, it will deal with and not rethrow, but everything else will be thrown to the calling layer for further action (the consuming app can raise a msg box or whatever). Is this a good example of an exception that can be dealt with: A file cannot be written because the directory requires special privileges, so if this raises an exception, the file is written somewhere which does not require admin rights. Thanks

    Read the article

  • change/part doesn't work as expected with parse

    - by Rebol Tutorial
    According to http://www.rebol.com/docs/core23/rebolcore-15.html You can use change/part to parse and replace but that doesn't work well with this where I just try to replace the block <mytag > ... </mytag> by "MyString" content: {<mytag id="a" 111111111111111> </mytag> aaaaaaaaaaaaaaa aaaaaaaaaaaaaaa <mytag id="b" 22222222222222222> </mytag> <mytag id="c" 3333333333333> </mytag> aaaaaaaaaaaaaaa aaaaaaaaaaaaaaa <mytag id="d" 444444444444444> </mytag> } mytag: [ to {<mytag} start: ( ) thru {<mytag} to {id="} thru {id="} copy ID to {"} thru {"} to {</mytag>} thru {</mytag>} ending: (change/part start "mystring" ending) mark: ( write clipboard:// mark input) ] rule: [any mytag to end] parse content rule

    Read the article

  • What's the best way to avoid try...catch...finally... in my unit tests?

    - by Bruce Li
    I'm writing many unit tests in VS 2010 with Microsoft Test. In each test class I have many test methods similar to below: [TestMethod] public void This_is_a_Test() { try { // do some test here // assert } catch (Exception ex) { // test failed, log error message in my log file and make the test fail } finally { // do some cleanup with different parameters } } When each test method looks like this I fell it's kind of ugly. But so far I haven't found a good solution to make my test code more clean, especially the cleanup code in the finally block. Could someone here give me some advices on this? Thanks in advance.

    Read the article

  • An MP3 parser to extract numbered frames?

    - by Xepoch
    I am writing a streaming application for MP3 (CBR). It is all passthru, meaning I don't have to decode/encode, I just need to pass on the data as I see it come through. I want to be able to count the MP3 frames as they passthru (and some other stuff like throughput calculations). According to the MP3 frame header spec, the sync word appears to be 11 bits of 1s, however I notice (naturally) that the frame payload which I should safely assume to be binary and thus it is not odd at all to see 11 1s in sequence. My questions: Is there a Unix/Linux MP3 parser utility (dd-style) that can pull numbered frames from an MP3 file/pipe? Any perl wisdom here? How does one delineate an MP3 header block from any other binary payload data? and lastly: Is a constant bitrate (CBR) MP3 defined by payload bytes or are the header bytes included in the aggregate # of bytes/bits per any given timeslice? Thanks,

    Read the article

  • Apple Push Notification Feedback Service - how frequently does it check

    - by gem
    I have been able to successfully create push notifications and I have also received responses from the feedback service, so I am confident that my configuration is correct, but I was wondering, how long after a device has been made inactive, will it be picked up by the Apple Push Notification Service. When I first polled the feedback service, I received details on devices which were inactive several days ago. Now, while testing, when I uninstall the application and occasionally poll the feedback service, I'm not receiving any results. Any idea on how long it takes to update would be useful, as I'm no longer sure if the issue is else where in my code or if I'm just testing too soon. Thanks in advance

    Read the article

  • hadoop mapper static initialisation

    - by rakeshr
    Hi, I have a code fragment in which I am using a static code block to initialize a variable. public static class JoinMap extends Mapper<IntWritable, MbrWritable, LongWritable, IntWritable> { ....... public static RTree rt = null; static { String rtreeFileName = "R.rtree"; rt = new RTree(rtreeFileName); } public void map(IntWritable key, MbrWritable mbr,Context context) throws IOException, InterruptedException { ......... List elements = rt.overlaps(mbr.getRect()); ....... } } My problem is that the variable rt in the above code fragment is not getting initialised. Can anybody suggest a fix or an alternate way to initialise the variable. I don't want to initialise it inside my map function since that slows down the entire process.

    Read the article

  • C++ - how does Sleep() and cin work?

    - by quano
    Just curious. How does actually the function Sleep() work (declared in windows.h)? Maybe not just that implementation, but anyone. With that I mean - how is it implemented? How can it make the code "stop" for a specific time? Also curious about how cin and those actually work. What do they do exactly? The only way I know how to "block" something from continuing to run is with a while loop, but considering that that takes a huge amount of processing power in comparison to what's happening when you're invoking methods to read from stdin (just compare a while (true) to a read from stdin), I'm guessing that isn't what they do.

    Read the article

  • Create a hyperlink of a slanting image in expression Blend

    - by Tony Bolding
    I am developing a navigation menu in silverlight that has 6 images. As you mouseover each image grows and clicking on an image will take you to a page on the website. The customer I am doing this for decided that straight rectangular images were boring and I showed him a design where I have slanted each image so each one is now a rhomboid shape. Horizontal top and bottom with sides slanting about 30deg from vertical. I have been unable to figure out any way of growing each image on mouseover without putting a white block over the adjacent images. Would be grateful for any pointers.

    Read the article

  • How do I find the screen size in a fragment class

    - by thomas.cloud
    I was looking at this posting: Android: How to get screen dimensions when I was trying to determine the size of the device's screen while in a fragment class. One answer was close to what I needed but the only code that ended up working for me was: WindowManager wm = (WindowManager) getView().getContext().getSystemService(Context.WINDOW_SERVICE); Display screen = wm.getDefaultDisplay(); whereupon I could then use getHeight(); or another non-deprecated term. I realize this is exactly the same as the other site except this way you don't have define your context on a separate line.

    Read the article

  • Login implementation for windows mobile

    - by pdiddy
    What is a good approach for credential checks for windows mobile app. Knowing that it is an occasionally connected device. Should I keep the user credential into the local database? If the credential doesn't exist in the db, try to see if it has internet access and do the check through a web service? If both fails then display an error message ? If logins is successful then store the credential to the local database store then upon next login go against the database first? Is this a good approach?

    Read the article

  • CSS image for submit button - clicking image must submit form

    - by Tom
    Please help, I have a form on wordpress. I want the user to be able to click an image instead of the standard submit button. I have the image appear and the submit button disappear - but nothing happens when I click on the image. This is the code I am using: .formBuilderForm .formBuilderSubmit { clear: both; text-align: right; display:block; width:228px; height:49px; background: url(my image url) no-repeat; text-indent:-999em; Before you say "google it" or try search: I have tried the methods mentioned here: http://www.queness.com/post/798/5-techniques-to-style-buttons-using-images-and-css I've read similar posts such as this on stackoverflow but they don't solve my frustratingly simple problem. How to change input button image using CSS? Thanks for your help.

    Read the article

  • Is there a best coding style for indentations (same line, next line)?

    - by Luis Soeiro
    I prefer Pascal-like coding style, where the beginning and ending of a code block are on the same column. I think that it is easier to read and to handle cut and paste than the other kind of coding style. The style I prefer (Pascal-like): void fooBar(String s) { int a; int length=s.length(); for (int i=0;i<length;i++) { if (i>10) { System.out.println(i); System.out.println(s.charAt(i)); } } } The style that was adopted by the Java community: void fooBar(String s) { int a; int length=s.length(); for (int i=0;i<length;i++){ if (i>10){ System.out.println(i); System.out.println(s.charAt(i)); } } } So why do you use one type or the other (please cite an objective reason)?

    Read the article

  • Discovering the default gateway without DHCP

    - by JavaRocky
    A crazy question, but is there anyway to discover the default gateway without DHCP? This would be for a device on a network which does not use DHCP which does not have an IP address as yet. I was thinking if I could discover the default gateway, then i could try to guess an unused ip address then broadcast on the network to see if it's being used. I may be asking for trouble i understand. E.g. if there is already a computer which has a static IP and is shutdown.

    Read the article

  • Is there a way to combine streaming data retrieval with hibernate?

    - by Steve B.
    For the purposes of handling very large collections (and by very large I just mean "likely to throw OutOfMemory exception"), it seems problematic to use Hibernate because normally collection retrieval is done in a block, i.e. List values=session.createQuery("from X").list(), where you monolithically grab all N-million values and then process them. What I'd prefer to do is to retrieve the values as an iterator so that I grab 1000 or so (or whatever's a reasonable page size) at a time. Apart from writing my own iteration (which seems like it's likely to be re-inventing the wheel) is there a hibernate-native way to handle this?

    Read the article

  • UIWebView: Media Player Rotates View Controller

    - by RileyE
    I'm encountering an issue while using a webview. My app is currently a portrait application, but when a media player loads in a webview within my app, the user can rotate the player, which rotates my view controller as well. I know I can get a notification for when the player comes up and disappears, but is there a way to prevent it from rotating the controller in the first place? It doesn't seem like anyone has an answer. I have all of the standard "don't rotate unless if I tell you to" methods and plist values, but its still rotating. Its only when I load up a webview and the media player loads over it. If I rotate my device, the media player rotates along with it, which feels natural, but when I go back to the webview view controller, its rotated, which isn't good.

    Read the article

  • Using current database name in T-SQL has Using statement

    - by AmRoSH
    Hello everybody. I have application runs T-SQL statements to update more than one database the problem is i'm using the following t-sql USE [msdb] GO DECLARE @jobId BINARY(16) EXEC msdb.dbo.sp_add_job @job_name=N'test2', @enabled=1, @start_step_id=1, @notify_level_eventlog=0, @notify_level_email=2, @notify_level_netsend=2, @notify_level_page=2, @delete_level=0, @description=N'', @category_name=N'[Uncategorized (Local)]', @owner_login_name=N'sa', @notify_email_operator_name=N'', @notify_netsend_operator_name=N'', @notify_page_operator_name=N'', @job_id = @jobId OUTPUT select @jobId GO EXEC msdb.dbo.sp_add_jobserver @job_name=N'test2', @server_name = N'AMR-PC\SQL2008' GO USE [msdb] GO EXEC msdb.dbo.sp_add_jobstep @job_name=N'test2', @step_name=N'test', @step_id=1, @cmdexec_success_code=0, @on_success_action=1, @on_fail_action=2, @retry_attempts=0, @retry_interval=0, @os_run_priority=0, @subsystem=N'TSQL', @command=N'EXEC sp_MSforeachdb '' EXEC sp_MSforeachtable @command1=''''DBCC DBREINDEX (''''''''*'''''''')'''', @replacechar=''''*''''''', @database_name=N'Client5281', @output_file_name=N'C:\Documents and Settings\Amr\Desktop\Scheduel Reports\report', @flags=2 GO USE [msdb] GO DECLARE @schedule_id int EXEC msdb.dbo.sp_add_jobschedule @job_name=N'test2', @name=N'test', @enabled=1, @freq_type=8, @freq_interval=1, @freq_subday_type=1, @freq_subday_interval=0, @freq_relative_interval=0, @freq_recurrence_factor=1, @active_start_date=20100517, @active_end_date=99991231, @active_start_time=0, @active_end_time=235959, @schedule_id = @schedule_id OUTPUT select @schedule_id GO and i'm using (USE [msdb]) before any block and i want to get database name to replace this @database_name=N'**Client5281**', with the current database name instead of ([msdb]) that i'm using. i hope that i explained what i want well.

    Read the article

  • How do I correctly use generics?

    - by ninjasense
    I basically am making webrequests and recieving a JSON response. Depending on the request, I am parsing JSON request into objects I have created. The parsing is pretty much the same no matter what the object Im parsing into looks like. So I have a bunch of methods doing the same work only with different objects, I was wondering how I could accomplish this with generics? Here is an example public static ArrayList<Contact> parseContacts(String responseData) { ArrayList<Contact> Contacts = new ArrayList<Contact>(); try { JSONArray jsonContacts = new JSONArray(responseData); if (!jsonContacts.isNull(0)) { for (int i = 0; i < jsonContacts.length(); i++) { Contacts.add(new Contact(jsonContacts.getJSONObject(i))); } } } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (Exception e) { } return Contacts; }

    Read the article

< Previous Page | 497 498 499 500 501 502 503 504 505 506 507 508  | Next Page >