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  • Which method should I use to give the perception the computer is thinking in programming?

    - by Roy
    I want to create a simple game like tic tac toe where the human user is playing against the computer. The computer function takes a couple of milliseconds to run but I would like to make the computer take 5 seconds to make a move. Which method should I use? 1) Create two memory threads. One for the computer and one for the human user. When the computer is taking 5 seconds to imitate thinking, the human user thread is paused for 5 seconds. 2) Disable input devices for 5 seconds using timer or dispatchertimer 3) Any better methods you can think of Thanks!

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  • Where to begin with multi-threaded programming with c++?

    - by zoke
    I'm trying to implement my own IRC client as a personal proejct and I realized I needed a way to read and write from the socket at the same time. I realized I could have a reading thread which reads from the socket in the background and puts data in a queue and I could have another thread which writes data from a queue to the socket. However I have no idea on how to start with multithreaded programing or how to do it with c++. Where do I go from here?

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  • Insert objects into a collection with LINQ based on a property of the existing objects in the collection

    - by DavidS
    Hi, I've got a collection of object which contains data as follows: FromTime Duration 2010-12-28 24.0000 2010-12-29 24.0000 2010-12-30 24.0000 2010-12-31 22.0000 2011-01-02 1.9167 2011-01-03 24.0000 2011-01-04 24.0000 2011-01-05 24.0000 2011-01-06 24.0000 2011-01-07 22.0000 2011-01-09 1.9167 2011-01-10 24.0000 In the "FromTime" column, there are data "gaps" i.e. 2011-01-01 and 2011-01-08 are "missing". So what I'd like to do is to loop through a range of dates (in this instance 2010-12-28 to 2011-01-10) and "fill in" the "missing" data with a duration of 0. As I've just started with LINQ, I feel that it should be "fairly" easy but I can't quite get it right. I'm reading the book "LINQ in Action" but feel that I'm still quite a way off before I can resolve this particular issue. So any help would be much appreciated. David

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  • How can I get reason of page unloading in javascript's onunload event, in IE?

    - by DM
    There may be different reasons of page unloading: 1 User closes the current window. 2 User navigates to another location. 3 Clicks the Back, Forward, Refresh, or Home button. 4 User submits a form, and then browser starts to unload current page and load page with results of form submitting. (Assuming that the current window is the form's target). 5 and so on... Can I somehow know in onunload handler that the reason of unloading is p.4, i.e. moving to page with results of form submitting? I could define some flag when submiting form, but this does not solve the problem. Because response (on form submit) from web server takes some time, browser doesn't unload the current page immediately and waits response from server. And during this waiting user may close window or navigate anywhere. And I need to know whether was it indeed moving to results page or something else...?

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  • How to get ip address programactically on Debian based system?

    - by gc
    I'm trying to retrieve the ip address of the local machine in my program. The OS running is Ubuntu 8.10. I tried using gethostname() and gethostbyname to do it. All I can get is 127.0.1.1. I learned that it seems to be a Debian thing: This thread explained it. The content of my /etc/hosts file is also: 127.0.0.1 localhost 127.0.1.1 mymachine In this case, is there any other way to programactically (prefer C or C++) to get the ip address without modifying the system file on the machine? Thanks in advance. g.c.

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  • Home based business would like customers to schedule via website the time, day and date they want to take a class.

    - by Alessandro Machi
    I'm using google blogger. I want to ad thumbnail images of different classes I will be offering in my home film/video/sound/lighting studio. The idea is the prospective student visits my website, sees a class they want to take, clicks the thumbnail so first read a descriptive article about the class, at which point they can schedule the class for the time, day, and date of their choosing between the hours of 5am to 9pm, 365 days a year. As soon as the student has inputed the time, day and date of the class they want, they would go to a check out page to purchase the class time. The student would then be sent an email confirmation along with the exact location, the class name, and the time and date they selected. I was thinking of using Dwolla for the check out page because Dwolla offers either no fee or 25 cents per payment transaction, but I'm not sure I can hook up to them easily enough. My blog site is not finished by a longshot. I still have to actually input all of the class thumbnail images along with descriptions, but if you need to see what the page looks like the web address is http://www.myalexlogic.com Google blogger allows for third party code to be added within movable gadgets.

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  • Best way to update/insert into a table based on a remote table.

    - by martilyo
    I have two very large enterprise tables in an Oracle 10g database. One table keeps the historical information of the other table. The problem is, I'm getting to the point where the records are just too many that my insert update is taking too long and my session is getting killed by the governor. Here's a pseudocode of my update process: sqlsel := 'SELECT col1, col2, col3, sysdate FROM table2@remote_location dpi WHERE (col1, col2, col3) IN ( SELECT col1, col2, col3 FROM table2@remote_location MINUS SELECT DISTINCT col1, col2, col3 FROM table1 mpc WHERE facility = '''||load_facility||''' )'; EXECUTE IMMEDIATE sqlsel BULK COLLECT INTO table1; I've tried the MERGE statement: MERGE INTO table1 t1 USING ( SELECT col1, col2, col3 FROM table2@remote_location ) t2 ON ( t1.col1 = t2.col1 AND t1.col2 = t2.col2 AND t1.col3 = t2.col3 ) WHEN NOT MATCHED THEN INSERT (t1.col1, t1.col2, t1.col3, t1.update_dttm ) VALUES (t2.col1, t2.col2, t2.col3, sysdate ) But there seems to be a confirmed bug on versions prior to Oracle 10.2.0.4 on the merge statement when doing a merge using a remote database. The chance of getting an enterprise upgrade is slim so is there a way to further optimize my first query or write it in another way to have it run best performance wise? Thanks.

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  • C Programming. How to deep copy a struct?

    - by user69514
    I have the following two structs where "child struct" has a "rusage struct" as an element. Then I create two structs of type "child" let's call them childA and childB How do I copy just the rusage struct from childA to childB? typedef struct{ int numb; char *name; pid_t pid; long userT; long systemT; struct rusage usage; }child; typedef struct{ struct timeval ru_utime; /* user time used */ struct timeval ru_stime; /* system time used */ long ru_maxrss; /* maximum resident set size */ long ru_ixrss; /* integral shared memory size */ long ru_idrss; /* integral unshared data size */ long ru_isrss; /* integral unshared stack size */ long ru_minflt; /* page reclaims */ long ru_majflt; /* page faults */ long ru_nswap; /* swaps */ long ru_inblock; /* block input operations */ long ru_oublock; /* block output operations */ long ru_msgsnd; /* messages sent */ long ru_msgrcv; /* messages received */ long ru_nsignals; /* signals received */ long ru_nvcsw; /* voluntary context switches */ long ru_nivcsw; /* involuntary context switches */ }rusage; I did the following, but I guess it copies the memory location, because if I changed the value of usage in childA, it also changes in childB. memcpy(&childA,&childB, sizeof(rusage)); I know that gives childB all the values from childA. I have already taken care of the others fields in childB, I just need to be able to copy the rusage struct called usage that resides in the "child" struct.

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  • $(document).ready(function(){ executed every time on onclick event of Hyperlink?

    - by Photon Critical Fatal Error_
    In my code I'm creating a product list dynamically using PHP(see image) and the currosponding labels and image paths are stored into hidden fields(created dynamically using PHP) now on document.ready() method i set the first list item's imagepath to img's src and its remarks to label remarks using first hidden fields for remark and imagepath. and on listitem click i want to change it my function set these values to img and label rightly(checked using alerts) but when function ends it set the image src and remarks innertext to default that is set on document.ready() method now my question is can i prevent the document.ready() to be executed next time on javascript function call My View : As the images are reloaded so the page rendering is done again so the document.ready is called again and set these values again to default. Note : My page is not reloading any time only images and labels are being changed The listshown in image is just one group other group is also created dynamically . server side code in PHP <?php for($j=0;$j<count($productstr);$j++) { $valuerem = $productstr[$j]["pcode"]; $idrem = "rem".$j.$grp; $valueimg =$productstr[$j]["imgpath"]; $idimg = "img".$j.$grp; echo "<input type='hidden' value='$valuerem' id='$idrem' />" ; echo "<input type='hidden' value='$valueimg' id='$idimg' />" ; }?> <script> $(document).ready(function() { idrv < ? PHP echo $grp; ? > = 'rem0<?PHP echo $grp; ?>'; idmv < ? PHP echo $grp; ? > = 'img0<?PHP echo $grp; ?>'; $('#txt<?PHP echo $grp; ?>').text(document.getElementById(idrv < ? PHP echo $grp; ? ).value); alert($('#txt<?PHP echo $grp; ?>').text()); $('#img<?PHP echo $grp; ?>').attr('src', document.getElementById(idmv < ? PHP echo $grp; ? > ).value); alert($('#img<?PHP echo $grp; ?>').attr('src')); }); function Change(id) { idrv < ? PHP echo $grp; ? > = 'rem' + id; idmv < ? PHP echo $grp; ? > = 'img' + id; $('#txt<?PHP echo $grp; ?>').text(document.getElementById(idrv < ? PHP echo $grp; ? > ).value); alert($('#txt<?PHP echo $grp; ?>').text()); $('#img<?PHP echo $grp; ?>').attr('src', document.getElementById(idmv < ? PHP echo $grp; ? > ).value); alert($('#img<?PHP echo $grp; ?>').attr('src')); return true; }? </script> alerts are used just to test the values the code that are being generated at client browser <tr> <td width="220px" valign="top" align="left"> <input id="YN" type="hidden" value="true"> <input id="rem00" type="hidden" value="SPL FUNNEL 1"> <input id="img00" type="hidden" value="adminpanel/product_images/4f8e530154d74155.jpg"> <input id="rem10" type="hidden" value="SPL FUNNEL 2"> <input id="img10" type="hidden" value="adminpanel/product_images/4f8e53daf13e6156.jpg"> <input id="rem20" type="hidden" value="SPL FUNNEL 3"> <input id="img20" type="hidden" value="adminpanel/product_images/4f8e543100eaf157.jpg"> <input id="rem30" type="hidden" value="SPL FUNNEL 4"> <input id="img30" type="hidden" value="adminpanel/product_images/4f8e545a829e1158.jpg"> <script> $(document).ready(function() { idrv0 = 'rem00'; idmv0 = 'img00'; $('#txt0').text(document.getElementById(idrv0).value); alert($('#txt0').text()); $('#img0').attr('src', document.getElementById(idmv0).value); alert($('#img0').attr('src')); }); function Change(id) { $('#YN').val('false'); idrv0 = 'rem' + id; idmv0 = 'img' + id; $('#txt0').text(document.getElementById(idrv0).value); alert($('#txt0').text()); $('#img0').attr('src', document.getElementById(idmv0).value); alert($('#img0').attr('src')); return true; }? </script> <ul> <li> <a id="00" style="text-decoration: none; text-size: 1.1em; color: " onclick=" Change(this.id); alert($('#txt0').text()); alert($('#img0').attr('src'));"> SPL FUNNEL 1</a> </li> <li> <li> <li> </ul> </td> <td valign="bottom" align="left" colspan="2"> <td width="110px" valign="bottom" align="left" style="width: 180px"> </tr>

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  • Is there a comprehensive list of the NHibernate event listeners and when they actually fire?

    - by snicker
    So I am looking for a nice list of NHibernate events that actually describes when they are fired, in a typical scenario. IE something like PreUpdateEventListener - Fires when an object that is already persistent is changing I currently just rifle through the source and try to figure it out, but it's kinda painful, and I figure that someone must have done this already at some point.

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  • Paging using Linq-To-Sql based on two parameters in asp.net mvc...

    - by Pandiya Chendur
    As two parameters i say currentPage and pagesize .....I thus far used sql server stored procedures and implemented paging like this, GO ALTER PROCEDURE [dbo].[GetMaterialsInView] -- Add the parameters for the stored procedure here @CurrentPage INT, @PageSize INT AS BEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. SET NOCOUNT ON; SELECT *,ROW_NUMBER() OVER (ORDER BY Id) AS Row FROM ( SELECT *,ROW_NUMBER() OVER (ORDER BY Id) AS Row FROM InTimePagingView ) AS InTimePages WHERE Row >= (@CurrentPage - 1) * @PageSize + 1 AND Row <= @CurrentPage*@PageSize SELECT COUNT(*) as TotalCount FROM InTimePagingView SELECT CEILING(COUNT(*) / CAST(@PageSize AS FLOAT)) NumberOfPages FROM InTimePagingView END Now i am using Linq-to-sql and i use this, public IQueryable<MaterialsObj> FindAllMaterials() { var materials = from m in db.Materials join Mt in db.MeasurementTypes on m.MeasurementTypeId equals Mt.Id where m.Is_Deleted == 0 select new MaterialsObj() { Id = Convert.ToInt64(m.Mat_id), Mat_Name = m.Mat_Name, Mes_Name = Mt.Name, }; return materials; } Now i want to return the records,TotalCount where i use Total count to generate pagenumbers..... Is this possible... Any suggestion... EDIT: Just found this... NorthWindDataContext db = new NorthWindDataContext(); var query = from c in db.Customers select c.CompanyName; //Assuming Page Number = 2, Page Size = 10 int iPageNum = 2; int iPageSize = 10; var PagedData = query.Skip((iPageNum - 1) * iPageSize).Take(iPageSize); ObjectDumper.Write(PagedData);

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  • MySQL Date_Format based on today's date and another column?

    - by JM4
    I am aware of the MySQL Date_Format function but am looking to achieve the following: I have on column with a day date in 2 digit format (01-30). I am trying to update another date formatted field with the current year, the next month (m+1) and the day field mentioned previously. In PHP i would do this using mktime function but this must be done using mysql calls only. Is it possible to transform in this way?

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  • Problem in Rendering images in UIImageView in iPhone programming.

    - by suse
    Hello, I've a UIViewController and a UIImageView, on UIImageView i want to flip between 2 images, which i'm not able to achieve. This is the code i've written, plz correct me if i'm wrong. UIViewController* VC = [[UIViewController alloc]init]; VC.view.backgroundColor = [UIColor redColor]; UIImageView* imgView = [[UIImageView alloc]initWithFrame:CGRectMake(0,0,320,400)]; [imgView setImage:[UIImage imageNamed:@"Image_A.jpg"]]; [VC.view addSubview:imgView]; sleep(2); [imgView setImage:[UIImage imageNamed:@"Image_B.jpg"]]; [VC.view addSubview:imgView]; [window addSubview:VC.view]; so when i execute this project, only Image_B is displayed on screen, while i want Image_A to be displayed then on sleep(2), Image_B has to be displayed. How would i make it possible?? plz guide me.. I'm struggling with this problem since 3days .. plz try to help me out... Thank You.

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  • How to add response headers based on Content-type; getting Content-type before the response is commi

    - by Bozho
    I want to set the Expires header for all image/* and text/css. I'm doing this in a Filter. However: before calling chain.doFilter(..) the Content-type is not yet "realized" after calling chain.doFilter(..) the Content-type is set, but so is content-length, which forbids adding new headers (at least in Tomcat implementation) I can use the extensions of the requested resource, but since some of the css files are generated by richfaces by taking them from inside jar-files, the name of the file isn't x.css, but is /xx/yy/zz.xcss/DATB/.... So, is there a way to get the Content-type before the response is committed.

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  • What was the thinking behind the development of Object Oriented Programming?

    - by leeand00
    I've got some real nay-sayers on my hands here, and I'm trying to give them the reason why OOP was developed in the first place. I realize that OOP is not perfect for all problems and situations, but it was developed for a reason... My guess would be, that a few of those reasons would be: Maintainability Re-usability Document-ability Abstraction of Complex Technologies Dynamic Extension at Runtime... Probably some things that I'm not even aware of yet... But I really don't have much to back this up, and I was wondering why OOP was developed in the first place, and it's history. What were the people who developed OOP trying to accomplish? What led them to develop OOP?

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