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  • Why am I getting kicked from an IRC channel in one OS (xp) but not in the other OS (7)? [closed]

    - by moshe
    I got kicked from an IRC channel. I have Windows XP and now if I'm trying to get into this specific channel, I get inside but I get immediately kicked out. I can come in again, and again get kicked out. It seems this is done automatically. Now I have also installed, on another hard drive in the same computer Windows 7. On Windows7 I can get into this same channel and never kicked out! It's the same computer, but different operating system(separate Hard Drives). How can it be? Is the KICK command bias towards the operating system I got KICKed in? Please explain to me how this thing is happening. PS: I forgot to mention that it doesn't matter if i change my IP or my nickname, I continue to kicked out from this channel. Again, in windows 7 I can get in without a problem. another thing that is good to mention is that i got kicked out when i was using windows XP, and not windows 7. i think that it could happened also with windows 2000 and vista, so i dont bother the OS itself, but why it's acting differently with a different OS?

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  • Win xp reinstall now I am unable to connect to broadband what shall I select to do this?

    - by waterfallrain
    Hello, My hardrive was failing so I needed to reinstall win xp. I completed the reinstall and the drivers but now only the wireless connection works. The broadband states connected but does not go out to the interenet. When I click Internet Explorer it says unable to find webpage. I have tried several major sites so I know its not the site but some configuration or something I need to do on my end. When I go to the cmd prompt and renew the ip it refers to my wireless nothing about this broadband connection. What do I type/select to get this to go out to the Internet. The broadband is working for my other laptop so I know the connection is not the issue. Any help would be much appreciated thank you.

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  • Windows XP reinstall, now I am unable to connect to broadband what shall I select to do this?

    - by waterfallrain
    My hardrive was failing so I needed to reinstall Windows XP. I completed the reinstall and the drivers but now only the wireless connection works. The broadband states connected but does not go out to the Internet. When I click Internet Explorer it says unable to find webpage. I have tried several major sites so I know it's not the site but some configuration or something I need to do on my end. When I go to the command prompt and renew the IP address it refers to my wireless, nothing about this broadband connection. What do I type/select to get this to go out to the Internet. The broadband is working for my other laptop so I know the connection is not the issue. Any help would be much appreciated.

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  • How to run webcam software only when I am not home (phone is not on the LAN)?

    - by endolith
    Currently I've got cron starting Motion when I typically leave for work, and then killing it when I typically get home, so I can watch my cat/burglars/etc. But it would be better if it could detect when I'm actually home and disable the webcam during those times, and enable it at other times. I was thinking my presence could be detected by my Android phone joining the LAN. So something like A script that checks every few minutes whether my phone's hostname or MAC address is currently on the LAN or A Tasker script on my phone that contacts the home computer in some way (simple web server?) when it joins a certain SSID or ... Any better ideas or advice about how to implement one of these?

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  • Deploying war files in tomcat6

    - by user3215
    I am using tomcat5.5 for a long on ubuntu servers 8.10 and 9.10 and '/usr/share/tomcat/webapps/' is the path where I place my .war files and access them on the browser over network. On a sytem I've installed tomcat6 and I'm failing to find that where do I place my .war file of tomcat6's webapps. I checked deploying war under /var/lib/tomcat6/webapps/ and the war file is extracted and I think this should be the location but I could not access the page when I tried http://serverip:8080/myapp. I could access the default page properly when I navigate to http://serverip:8080. The same war file is working fine on tomcat servers which were not installed from apt repository. Log Messages: INFO: Stopping Coyote HTTP/1.1 on http-8080 2 Dec, 2010 10:06:29 AM org.apache.coyote.http11.Http11Protocol init INFO: Initializing Coyote HTTP/1.1 on http-8080 2 Dec, 2010 10:06:29 AM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 523 ms 2 Dec, 2010 10:06:29 AM org.apache.catalina.core.StandardService start INFO: Starting service Catalina 2 Dec, 2010 10:06:29 AM org.apache.catalina.core.StandardEngine start INFO: Starting Servlet Engine: Apache Tomcat/6.0.20 2 Dec, 2010 10:06:30 AM org.apache.catalina.startup.HostConfig deployWAR INFO: Deploying web application archive myapp.war 2 Dec, 2010 10:06:32 AM org.apache.catalina.core.StandardContext start SEVERE: Error listenerStart 2 Dec, 2010 10:06:32 AM org.apache.catalina.core.StandardContext start SEVERE: Context [/myapp] startup failed due to previous errors 2 Dec, 2010 10:06:32 AM org.apache.coyote.http11.Http11Protocol start INFO: Starting Coyote HTTP/1.1 on http-8080 2 Dec, 2010 10:06:32 AM org.apache.catalina.startup.Catalina start INFO: Server startup in 3110 ms 2 Dec, 2010 10:06:39 AM org.apache.catalina.core.StandardContext start SEVERE: Error listenerStart 2 Dec, 2010 10:06:39 AM org.apache.catalina.core.StandardContext start SEVERE: Context [/myapp] startup failed due to previous error Any help?

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  • I am not the most logically-organized person. Do I have any chance at being a good 'low-level' programmer?

    - by user217902
    Background: I am entering college next year. I really enjoy making stuff and solving logical problems, so I'm thinking of majoring in compsci and working in software development. I hope to have the kind of job where I can work with implementing / improving algorithms and data structures on a regular basis.. as opposed to, say, a job that's purely concerned with mashing different libraries together, or 'finding the right APIs for the job'. (Hence the word 'low-level' in the title. No, I don't wish to write assembly all day.) Thing is, I've never been the most logically-sharp person. Thus far I have only worked on hobby projects, but I find that I make the silliest of errors ever so often, and it can take me ages to find it. Like anywhere between three hours to a day to locate a simple segfault, off-by-one error, or other logical mistake. (Of course, I do other things in the meantime, like browsing SO, reddit, and the like..) It's not like I'm 'new' to programming either; I first tried C++ maybe five years ago. My question is: is this normal? Should a programmer with any talent solve it in less time? Having read Spolsky's Smart and gets things done, where he talks about the large variance in programming speed, am I near the bottom of the curve, and therefore destined to work in companies that cannot afford to hire quality programmers? I'd like to think that conceptually I'm okay -- I can grasp algorithms and concepts pretty well, I do fine in math and science, although I probably drop signs in my equations more often than the next guy. Still, grokking concepts makes me happy, and is the reason why I want to work with algorithms. I'm hoping to hear from those of you with real-world programming experience. TL;DR: I make many careless mistakes, should I not consider programming as a career?

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  • Severe Tomcat crash has me stumped

    - by Eric Banderhide
    I'm pretty used to crashing my tomcat server. But I don't think I made any changes at all and seem to have broken it completely. Was working one min then not the next. I really hope someone can help here is the Catalina.out: Dec 20, 2012 1:35:56 AM org.apache.catalina.startup.Embedded initDirs SEVERE: Cannot find specified temporary folder at Dec 20, 2012 1:35:57 AM org.apache.catalina.core.AprLifecycleListener init INFO: Loaded APR based Apache Tomcat Native library 1.1.23. Dec 20, 2012 1:35:57 AM org.apache.catalina.core.AprLifecycleListener init INFO: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true]. Dec 20, 2012 1:35:57 AM org.apache.coyote.http11.Http11AprProtocol init INFO: Initializing Coyote HTTP/1.1 on http-8040 Dec 20, 2012 1:35:57 AM org.apache.coyote.ajp.AjpAprProtocol init INFO: Initializing Coyote AJP/1.3 on ajp-8042 Dec 20, 2012 1:35:57 AM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 587 ms Dec 20, 2012 1:35:57 AM org.apache.catalina.core.StandardService start INFO: Starting service Catalina Dec 20, 2012 1:35:57 AM org.apache.catalina.core.StandardEngine start INFO: Starting Servlet Engine: Apache Tomcat/6.0.33 Dec 20, 2012 1:35:57 AM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory docs Dec 20, 2012 1:35:57 AM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory ROOT Dec 20, 2012 1:35:57 AM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory myApp Dec 20, 2012 1:35:57 AM org.apache.catalina.loader.WebappClassLoader validateJarFile INFO: validateJarFile(/lhome/me/tomcat6/webapps/myApp/WEB-INF/lib/javax.servlet.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class Dec 20, 2012 1:35:58 AM org.apache.coyote.http11.Http11AprProtocol start INFO: Starting Coyote HTTP/1.1 on http-8040 Dec 20, 2012 1:35:58 AM org.apache.coyote.ajp.AjpAprProtocol start INFO: Starting Coyote AJP/1.3 on ajp-8042 Dec 20, 2012 1:35:58 AM org.apache.catalina.startup.Catalina start INFO: Server startup in 880 ms Error Reading TLE line 1: java.lang.Exception: TLE line 1 not valid first line Error Creating SGP4 Satellite Dec 20, 2012 1:36:26 AM org.apache.coyote.http11.Http11AprProtocol pause INFO: Pausing Coyote HTTP/1.1 on http-8040 Dec 20, 2012 1:36:26 AM org.apache.coyote.ajp.AjpAprProtocol pause INFO: Pausing Coyote AJP/1.3 on ajp-8042 Dec 20, 2012 1:36:27 AM org.apache.catalina.core.StandardService stop INFO: Stopping service Catalina Dec 20, 2012 1:36:30 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc SEVERE: The web application [/myApp] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. Dec 20, 2012 1:36:30 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/myApp] is still processing a request that has yet to finish. This is very likely to create a memory leak. You can control the time allowed for requests to finish by using the unloadDelay attribute of the standard Context implementation. Dec 20, 2012 1:36:30 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/myApp] appears to have started a thread named [Timer-0] but has failed to stop it. This is very likely to create a memory leak. Dec 20, 2012 1:36:30 AM org.apache.coyote.http11.Http11AprProtocol destroy INFO: Stopping Coyote HTTP/1.1 on http-8040 Dec 20, 2012 1:36:30 AM org.apache.coyote.ajp.AjpAprProtocol destroy INFO: Stopping Coyote AJP/1.3 on ajp-8042 Dec 20, 2012 1:37:12 AM org.apache.catalina.startup.Catalina stopServer SEVERE: Catalina.stop: java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391) at java.net.Socket.connect(Socket.java:579) at java.net.Socket.connect(Socket.java:528) at java.net.Socket.<init>(Socket.java:425) at java.net.Socket.<init>(Socket.java:208) at org.apache.catalina.startup.Catalina.stopServer(Catalina.java:422) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.apache.catalina.startup.Bootstrap.stopServer(Bootstrap.java:338) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:416) And I have a new log that has been created, I've never seen it before but it seems to think its something severe. A long one but here it is: Massive Error Log I've never seen before

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  • Landscape-only orientation + view controllers: What am I still missing?

    - by mahboudz
    Hi. I can't believe I am still having problems with screen orientation, now on the iPad. This is an app that only supports one of the two landscape orientation. In my info.plist, I include: <string>UIInterfaceOrientationLandscapeRight</string> <string>UIInterfaceOrientationLandscapeLeft</string> In Interface Builder, all my views are created in landscape orientation. Only the main Window is not, but I don't see a way to change that. When launched, I get the following coordinates for my main window and the main viewcontroller view: Window frame {{0, 0}, {768, 1024}} mainView frame {{0, 0}, {748, 1024}} (Changing the frame at runtime to be what I expect, does not change the odd behavior.) All other views after that show these coordinates when summoned (when loaded but before being presented): frame of keysig {{0, 0}, {1024, 768}} frame of instrumentSelect {{20, 0}, {1024, 768}} frame of settings {{0, 0}, {467, 300}} In all my viewControllers, i respond to shouldAutorotateToInterfaceOrientation with: return ((interfaceOrientation == UIInterfaceOrientationLandscapeLeft) || (interfaceOrientation == UIInterfaceOrientationLandscapeRight)); In my app, everything (almost) functions as expected. The app launches into one of the two landscape modes. The views (and viewcontrollers) display everything where it belongs, taps work all across the screen, as expected. However, there are two clues that something is still wrong. Clue #1: I have two viewcontrollers that are UITabeViewControllers. When summoned, they are supposed to open up their views and scroll to the selected row of the table. However it is evident that they scroll, but they don't scroll down far enough. It seems that they think that the screen extends further down and they scroll just enough to move the row to a place near the bottom of the screen, but that location is not visible. When the views are loaded, the coordinates are: frame of keysig {{0, 0}, {1024, 768}} frame of instrumentSelect {{20, 0}, {1024, 768}} When I present them using a popover, the frames get resized to: frame of keysig {{0, 0}, {320, 655}} frame of instrumentSelect {{0, 0}, {320, 655}} The frame of the viewController that does the presentation, same mainView frame mentioned above is: frame of self {{20, 0}, {748, 1024}} I have also tried to accomplish the same thing with presentModalViewController instead of presentPopover, and have the same results. This is what the popovers look like: In both cases, the selected row is below the horizon, even though the tableView did visibly scroll in order to make the row visible. I am not sure what to try next. I checked each UITable's scrollView content coordinates and they seemed reasonable. It almost seems like a UITable internal rect gets created with the wrong number and stays that way. Clue #2: All my actionsheets come up with a width of 320. I can only assume that the iPad allows actionSheets in only 320 or 480 widths and since it somehow thinks that the screen is oriented in portrait mode, and then uses the narrower width. There you have it. I can't believe I am still getting hung up on orientation issues. I swear Apple doesn't make it easy to have a landscape app. Any ideas?

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  • Hello i am using the android code to connect facebook but getting "Facebook Server Error + 104 - Inc

    - by Shalini Singh
    Hello i am using the android code to connect facebook but getting "Facebook Server Error + 104 - Incorrect signature" exception at the place of onLoginSuccess function. code is given bellow .... public class FacebookConnection extends Activity implements LoginListener { private FBRocket fbRocket; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // You need to put in your Facebook API key here: fbRocket = new FBRocket(this, "test", "e2c8deda78b007466c54f48e6359e02e"); // Determine whether there exists a previously-saved Facebook: if (fbRocket.existsSavedFacebook()) { String str =fbRocket.getAPIKey(); Log.e("Api key", str); fbRocket.loadFacebook(); } else { fbRocket.login(R.layout.main); String str =fbRocket.getAPIKey(); Log.e("Api key", str); } } public void onLoginFail() { fbRocket.displayToast("Login failed!"); fbRocket.login(R.layout.main); } public void onLoginSuccess(Facebook facebook) { fbRocket.displayToast("Login success!******************"); // Set the logged-in user's status: try { facebook.setStatus("I am using Facebook -- it's great!"); String uid = facebook.getFriendUIDs().get(0); // Just get the uid of the first friend returned... fbRocket.displayDialog("Friend's name: " + facebook.getFriend(uid).name); // ... and retrieve this friend's name. } catch (ServerErrorException e) { // Check if the exception was caused by not being logged-in: if (e.notLoggedIn()) { // ...if it was, then login again: fbRocket.login(R.layout.main); } else { System.out.println(e); e.printStackTrace(); } } }

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  • Why I am not able to update the column based on a condition which is not the primary key

    - by Gaurav Sharma
    Why I am not able to update the column based on a condition which is not the primary key. I am trying to update the constituencies table where name matches a specific criterial as shown below but the below queries shows an error Error code 1064, SQL state 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'table constituencies set city_id = '1' where constituencies.name = "East Delhi"' at line 1 update table constituencies set city_id = '1' where constituencies.name = "East Delhi"; update table constituencies set city_id = '1' where constituencies.name = "South Delhi"; update table constituencies set city_id = '1' where constituencies.name = "Delhi Sadar"; update table constituencies set city_id = '1' where constituencies.name = "Karol Bagh"; update table constituencies set city_id = '1' where constituencies.name = "New Delhi"; update table constituencies set city_id = '1' where constituencies.name = "Outer Delhi"; update table constituencies set city_id = '1' where constituencies.name = "North East Delhi"; update table constituencies set city_id = '1' where constituencies.name = "North West Delhi"; update table constituencies set city_id = '1' where constituencies.name = "West Delhi"; Is it necessary that the condition should be checked with a primary key only ? Please throw some light on the above.

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  • My jquery cookies are not resetting, even though am using the correct code.

    - by Adam Libonatti-Roche
    My problem is that I am trying to reset some form cookies so when someone has completed their form, they are reset so it is possible for someone else to complete the form. Simple and obvious. But However many different lines of code I put in, the cookies just do not seem to be disappearing. I am using the remember function from the site below: Komodo Media So the details stay when they move away from the page: the code i have for the page starting is as follows: <script type="text/javascript"> function remember( selector ){ $(selector).each( function(){ //if this item has been cookied, restore it var name = $(this).attr('name'); if( $.cookie( name ) ){ if( $(this).is(':checkbox') ){ $(this).attr('checked',$.cookie( name )); }else{ $(this).val( $.cookie(name) ); } } //assign a change function to the item to cookie it $(this).change( function(){ if( $(this).is(':checkbox') ){ $.cookie(name, $(this).attr('checked'), { path: '/', expires: 1 }); }else{ $.cookie(''+name+'', $(this).val(), { path: '/', expires: 1 }); } }); }); } // JQUERY FOR THIS PAGE $(document).ready( function(){ remember("[name=username]"); remember("[name=firstname]"); remember("[name=lastname]"); remember("[name=email]"); remember("[name=password]"); remember("[name=address1]"); remember("[name=address2]"); remember("[name=postcode]"); remember("[name=country]"); } ); </script> And the code for resetting them is simple enough, as it takes the cookie name and sets it to null. However, this does not work as on returning to the form, all fields from before are still there. Any help with this would be brilliant.

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  • What am I doing wrong with HttpResponse content and headers when downloading a file?

    - by Slauma
    I want to download a PDF file from a SQL Server database which is stored in a binary column. There is a LinkButton on an aspx page. The event handler of this button looks like this: protected void LinkButtonDownload(object sender, EventArgs e) { ... byte[] aByteArray; // Read binary data from database into this ByteArray // aByteArray has the size: 55406 byte Response.ClearHeaders(); Response.ClearContent(); Response.BufferOutput = true; Response.AddHeader("Content-Disposition", "attachment; filename=" + "12345.pdf"); Response.ContentType = "application/pdf"; using (BinaryWriter aWriter = new BinaryWriter(Response.OutputStream)) { aWriter.Write(aByteArray, 0, aByteArray.Length); } } A "File Open/Save dialog" is offered in my browser. When I store this file "12345.pdf" to disk, the file has a size of 71523 Byte. The additional 16kB at the end of the PDF file are the HTML code of my page (as I can see when I view the file in an editor). I am confused because I was believing that ClearContent and ClearHeaders would ensure that the page content is not sent together with the file content. What am I doing wrong here? Thanks for help!

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  • Why am I getting "Message sent to deallocated object" in Objective-C?

    - by Dave C
    I have several buttons on my app that are being created dynamically. They are all pointed at the button click event when pressed. When the button pressed method is called, the sender's tag (int value) is parsed into the controller's house ID. It works with one of the buttons — the first one created, to be specific — but the others throw the following error: -[CFNumber intValue]: message sent to deallocated instance 0xc4bb0ff0 I am not releasing these buttons anywhere in my code. I haven't set them to autorelease or anything like that. I'm just wondering why they are doing this on the click. The button click event: - (IBAction) ButtonClick: (id) sender { HouseholdViewController *controller = [[HouseholdViewController alloc] initWithNibName:@"HouseholdViewController" bundle:nil]; controller.delegate = self; controller.HouseID = [(NSInteger)[(UIButton *)sender tag] intValue]; //this line throws an error controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; [self presentModalViewController:controller animated:YES]; [controller release]; } Where I am creating the buttons: UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; button.frame = CGRectMake(MyLongInScreenCoords, MyLatInScreenCoords, 50, 50); UIImage *buttonImageNormal = [UIImage imageNamed:@"blue_pin.png"]; UIImage *strechableButtonImageNormal = [buttonImageNormal stretchableImageWithLeftCapWidth:50 topCapHeight:50]; [button setBackgroundImage:strechableButtonImageNormal forState:UIControlStateNormal]; [self.view addSubview:button]; button.tag = [NSNumber numberWithInt:[[words objectAtIndex: i] intValue]]; ButtonPoints[CurrentHouseCount][0] = button; ButtonPoints[CurrentHouseCount][1] = [NSValue valueWithCGPoint:CGPointMake(MyActualLat, MyActualLong)]; [button addTarget:self action:@selector(ButtonClick:) forControlEvents:UIControlEventTouchUpInside]; CurrentHouseCount++;

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  • here is my code in Jquery and Asp.net Unable to get a correct ANS as I am getting from jquery?

    - by ricky roy
    unable to get the correct Ans as i am getting from the Jquery I am using jquery.countdown.js here is my code [WebMethod] public static String GetTime() { DateTime dt = new DateTime(); dt = Convert.ToDateTime("April 9, 2010 22:38:10"); return dt.ToString("dddd, dd MMMM yyyy HH:mm:ss"); } html file <script type="text/javascript" src="Scripts/jquery-1.3.2.js"></script> <script type="text/javascript" src="Scripts/jquery.countdown.js"></script> <script type="text/javascript"> $(function() { var shortly = new Date('April 9, 2010 22:38:10'); var newTime = new Date('April 9, 2010 22:38:10'); //for loop divid /// $('#defaultCountdown').countdown({ until: shortly, onExpiry: liftOff, onTick: watchCountdown, serverSync: serverTime }); $('#div1').countdown({ until: newTime }); }); function serverTime() { var time = null; $.ajax({ type: "POST", //Page Name (in which the method should be called) and method name url: "Default.aspx/GetTime", // If you want to pass parameter or data to server side function you can try line contentType: "application/json; charset=utf-8", dataType: "json", data: "{}", async: false, //else If you don't want to pass any value to server side function leave the data to blank line below //data: "{}", success: function(msg) { //Got the response from server and render to the client time = new Date(msg.d); alert(time); }, error: function(msg) { time = new Date(); alert('1'); } }); return time; } function watchCountdown() { } function liftOff() { } </script>

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  • Why is creating a ring buffer shared by different processes so hard (in C++), what I am doing wrong?

    - by recipriversexclusion
    I am being especially dense about this but it seems I'm missing an important, basic point or something, since what I want to do should be common: I need to create a fixed-size ring buffer object from a manager process (Process M). This object has write() and read() methods to write/read from the buffer. The read/write methods will be called by independent processes (Process R and W) I have implemented the buffer, SharedBuffer<T&>, it allocates buffer slots in SHM using boost::interprocess and works perfectly within a single process. I have read the answers to this question and that one on SO, as well as asked my own, but I'm still in the dark about how to have different processes access methods from a common object. The Boost doc has an example of creating a vector in SHM, which is very similar to what I want, but I want to instantiate my own class. My current options are: Use placement new, as suggested by Charles B. to my question; however, he cautions that it's not a good idea to put non-POD objects in SHM. But my class needs the read/write methods, how can I handle those? Add an allocator to my class definition, e.g. have SharedBuffer<T&, Alloc> and proceed similarly to the vector example given in boost. This sounds really complicated. Change SharedBuffer to a POD class, i.e. get rid of all the methods. But then how to synchronize reading and writing between processes? What am I missing? Fixed-length ring buffers are very common, so either this problem has a solution or else I'm doing something wrong.

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  • Why i am getting NullPointerException for this btree method??

    - by user306540
    hi, i am writing code for btree algorithms. i am getting NullPointerException . why???? please somebody help me...! public void insertNonFull(BPlusNode root,BPlusNode parent,String key) { int i=0; BPlusNode child=new BPlusNode(); BPlusNode node=parent; while(true) { i=node.numKeys-1; if(node.leaf) { while(i>=0 && key.compareTo(node.keys[i])<0) { node.keys[i+1]=node.keys[i]; i--; } node.keys[i+1]=key; node.numKeys=node.numKeys+1; } else { while(i>=0 && key.compareTo(node.keys[i])<0) { i--; } } i++; child=node.pointers[i]; if(child!=null && child.numKeys==7) { splitChild(root,node,i,child); if(key.compareTo(node.keys[i])>0) { i++; } } node=node.pointers[i]; } }

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  • Why am I getting "Message sent to deallocated instance" in Objective-C?

    - by Dave C
    I have several buttons on my app that are being created dynamically. They are all pointed at the button click event when pressed. When the button pressed method is called, the sender's tag (int value) is parsed into the controller's house ID. It works with one of the buttons — the first one created, to be specific — but the others throw the following error: -[CFNumber intValue]: message sent to deallocated instance 0xc4bb0ff0 I am not releasing these buttons anywhere in my code. I haven't set them to autorelease or anything like that. I'm just wondering why they are doing this on the click. The button click event: - (IBAction) ButtonClick: (id) sender { HouseholdViewController *controller = [[HouseholdViewController alloc] initWithNibName:@"HouseholdViewController" bundle:nil]; controller.delegate = self; controller.HouseID = [(NSInteger)[(UIButton *)sender tag] intValue]; //this line throws an error controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; [self presentModalViewController:controller animated:YES]; [controller release]; } Where I am creating the buttons: UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; button.frame = CGRectMake(MyLongInScreenCoords, MyLatInScreenCoords, 50, 50); UIImage *buttonImageNormal = [UIImage imageNamed:@"blue_pin.png"]; UIImage *strechableButtonImageNormal = [buttonImageNormal stretchableImageWithLeftCapWidth:50 topCapHeight:50]; [button setBackgroundImage:strechableButtonImageNormal forState:UIControlStateNormal]; [self.view addSubview:button]; button.tag = [NSNumber numberWithInt:[[words objectAtIndex: i] intValue]]; ButtonPoints[CurrentHouseCount][0] = button; ButtonPoints[CurrentHouseCount][1] = [NSValue valueWithCGPoint:CGPointMake(MyActualLat, MyActualLong)]; [button addTarget:self action:@selector(ButtonClick:) forControlEvents:UIControlEventTouchUpInside]; CurrentHouseCount++;

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  • I am unable to upload file to my local host folder in php.

    - by Nauman khan
    Hi, I have the follwing code <form enctype="multipart/form-data" action="upload.php" method="POST"> Please choose a file: <input name="uploaded" type="file" /><br /> <input type="submit" value="Upload" /> </form> <?php $target = "upload/"; $target = $target . basename( $_FILES['uploaded']['name']) ; $ok=1; if(move_uploaded_file($_FILES['uploaded']['tmp_name'], $target)) { echo "The file ". basename( $_FILES['uploadedfile']['name']). " has been uploaded"; } else { echo "Sorry, there was a problem uploading your file."; } ?> my page is in http://localhost/nausal/upload.php now I am having the follwing error though i have created a folder in site with name upload. Notice: Undefined index: uploaded in C:\wamp\www\Nausal\upload.php on line 15 Notice: Undefined index: uploaded in C:\wamp\www\Nausal\upload.php on line 17 Sorry, there was a problem uploading your file. Please help me I am very new to php. :(

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  • Unable to Get a Correct Time when I am Calling serverTime using jquery.countdown.js + Asp.net ?

    - by user312891
    When i am calling the below function I unable to get a correct Answer. Both var Shortly and newTime having same time one coming from the client site other sync with server. http://keith-wood.name/countdown.html I am waiting from your response. Thanks $(function() { var shortly = new Date('April 9, 2010 20:38:10'); var newTime = new Date('April 9, 2010 20:38:10'); //for loop divid /// $('#defaultCountdown').countdown({ until: shortly, onExpiry: liftOff, onTick: watchCountdown, serverSync: serverTime }); $('#div1').countdown({ until: newTime }); }); function serverTime() { var time = null; $.ajax({ type: "POST", //Page Name (in which the method should be called) and method name url: "Default.aspx/GetTime", // If you want to pass parameter or data to server side function you can try line contentType: "application/json; charset=utf-8", dataType: "json", data: "{}", async: false, //else If you don't want to pass any value to server side function leave the data to blank line below //data: "{}", success: function(msg) { //Got the response from server and render to the client time = new Date(msg.d); alert(time); }, error: function(msg) { time = new Date(); alert('1'); } }); return time; }

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  • Could this be considered a well-written class (am I using OOP correctly)?

    - by Ben Dauphinee
    I have been learning OOP principals on my own for a while, and taken a few cracks at writing classes. What I really need to know now is if I am actually using what I have learned correctly, or if I could improve as far as OOP is concerned. I have chopped a massive portion of code out of a class that I have been working on for a while now, and pasted it here. To all you skilled and knowledgeable programmers here I ask: Am I doing it wrong? class acl extends genericAPI{ // -- Copied from genericAPI class protected final function sanityCheck($what, $check, $vars){ switch($check){ case 'set': if(isset($vars[$what])){return(1);}else{return(0);} break; } } // --------------------------------- protected $db = null; protected $dataQuery = null; public function __construct(Zend_Db_Adapter_Abstract $db, $config = array()){ $this->db = $db; if(!empty($config)){$this->config = $config;} } protected function _buildQuery($selectType = null, $vars = array()){ // Removed switches for simplicity sake $this->dataQuery = $this->db->select( )->from( $this->config['table_users'], array('tf' => '(CASE WHEN count(*) > 0 THEN 1 ELSE 0 END)') )->where( $this->config['uidcol'] . ' = ?', $vars['uid'] ); } protected function _sanityRun_acl($sanitycheck, &$vars){ switch($sanitycheck){ case 'uid_set': if(!$this->sanityCheck('uid', 'set', $vars)){ throw new Exception(ERR_ACL_NOUID); } $vars['uid'] = settype($vars['uid'], 'integer'); break; } } private function user($action = null, $vars = array()){ switch($action){ case 'exists': $this->_sanityRun_acl('uid_set', $vars); $this->_buildQuery('user_exists_idcheck', $vars); return($this->db->fetchOne($this->dataQuery->__toString())); break; } } public function user_exists($uid){ return($this->user('exists', array('uid' => $uid))); } } $return = $acl_test->user_exists(1);

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  • Chrome.tabs.getSelected() doesn't work. What am I doing wrong ?

    - by warv3n
    Hi there ! I'm building my first GC extension, and I am having a problem using this function. I would like to get the url of the current tab, and to do so (after some google research, of course), I use the chrome.tabs.getSelected() function. Here it is in my code : ... socket.onopen = function(msg){ log("Welcome - status " + this.readyState); chrome.tabs.getSelected(null, function(tab){ sendUrl(tab.url); }); }; function sendUrl(tabUrl) { socket.send("#URL#"+ tabUrl); } The socket.open is a listener for the Websocket API I use in my extension. The log function print the status of the socket (1, which means it's OPEN or connected and ready to communicate, according to the Websocket API), but the chrome.tabs.getSelected() function do not seems to work, as the server do not receive anything (the socket is not the problem here, I tried to send a test message with socket.send() instead of chrome.tabs.getSelected() and the server received it). I put the permissions: ["tabs"] into the manifest.json so I can use this function. So I don't know what I am doing wrong here ? I also tried to put chrome.tab.getSelected() elsewhere in the code, but it is still not working. Any help is welcome :)

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  • PHP is truncating MSSQL Blob data (4096b), even after setting INI values. Am I missing one?

    - by Dutchie432
    I am writing a PHP script that goes through a table and extracts the varbinary(max) blob data from each record into an external file. The code is working perfectly, except when a file is over 4096b - the data is truncated at exactly 4096. I've modified the values for mssql.textlimit, mssql.textsize, and odbc.defaultlrl without any success. Am I missing something here? <?php ini_set("mssql.textlimit" , "2147483647"); ini_set("mssql.textsize" , "2147483647"); ini_set("odbc.defaultlrl", "0"); include_once('common.php'); $id=$_REQUEST['i']; $q = odbc_exec($connect, "Select id,filename,documentBin from Projectdocuments where id = $id"); if (odbc_fetch_row($q)){ echo "Trying $filename ... "; $fileName="projectPhotos/docs/".odbc_result($q,"filename"); if (file_exists($fileName)){ unlink($fileName); } if($fh = fopen($fileName, "wb")) { $binData=odbc_result($q,"documentBin"); fwrite($fh, $binData) ; fclose($fh); $size = filesize($fileName); echo ("$fileName<br />Done ($size)<br><br>"); }else { echo ("$fileName Failed<br>"); } } ?> OUTPUT Trying ... projectPhotos/docs/file1.pdf Done (4096) Trying ... projectPhotos/docs/file2.zip Done (4096) Trying ... projectPhotos/docsv3.pdf Done (4096) etc..

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  • Why am I unable to prevent the animation queue from stacking without breaking my code?

    - by user1888886
    I am attempting to use jquery and CSS to animate the buttons of a navigation sidebar I am using to signify which button is selected when the mouse is hovered over each. Currently, my code for the CSS appears as such: #navbutton {position:relative; width:178px; height:35px; border:1px #FFF solid; z-index:+3; font-family:'Capriola', sans-serif; font-size:18px; text-align:center;} #navbutton.button {color:#77D; background-color: #F0B0D0;} #navbutton.button_hover {color:#66C; background-color: #FCF; padding:10px;} And my jquery: <script type="text/javascript"> $(document).ready(function(){ $("#sidebar div").mouseenter(buttonHover) function buttonHover(){ $(this).stop().switchClass('button','button_hover',500); } $("#sidebar div").mouseleave(button) function button(){ $(this).stop().switchClass('button_hover','button',500); } }); </script> Before I added the .stop() to each part of the animation, the animation queue would stack up for each time the mouse was moved over each button and then removed. Now that the .stop() has been applied, however, if the mouse is moved away from a button during its animation, the button will freeze and remain in its mid-animation state, unable to be fixed by being hovered over until the page is reloaded, rather than reverting to its original mouseleave state. From everything I've read, this should not be the case. Might anyone be able to tell why my animation queue becomes broken once the .stop() is applied?

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  • One controller with multiple models? Am I doing this correctly?

    - by user363243
    My web app, up until this point, has been fairly straight forward. I have Users, Contacts, Appointments and a few other things to manage. All of these are easy - it's just one model per section so I just did a scaffold for each, then modified the scaffolded code to fit my need. Pretty easy... Unfortunately I am having a problem on this next section because I want the 'Financials' section of my app to be more in depth than the other sections which I simply scaffolded. For example, when the user clicks the 'Contacts' link on the navigation bar, it just shows a list of contacts, pretty straight forward and is in line with the scaffold. However, when the user clicks the 'Financials' link on the navigation bar, I want to show the bank accounts on the left of the page and a few of the transactions on the right. So the financials tab will basically work with data from two models: transactions and bank_accounts. I think I should make the models (transactions & bank_accounts) and then make a controller called Financials, then I can query the models from the Financials controller and display the pages in app/views/financials/ Am I correct in this app layout? I have never worked with more than the basics of scaffolding so I want to ensure I get this right! Thank you!

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  • Why won't my DIV height grow? Is it because I am using floats?

    - by user1684636
    Please help! I am trying to create some div sections and some of these div sections have some other divs that are floated. All of which I have cleared. But the sections are not growing to accomodate the content inside of them. The following is my HTML - <div class="data"> <div class="name">Data</div> <div class="first section"> <div class="title">First Section</div> <div class="left settings"> <div class="row"> <div class="field">First Name</div> <div class="value">John</div> </div> <div class="row"> <div class="field">Last Name</div> <div class="value">Smith</div> </div> </div> <div class="right settings"> <div class="row"> <div class="field">ID</div> <div class="value">321</div> </div> <div class="row"> <div class="field">Group</div> <div class="value">Eng</div> </div> </div> </div> <div class="second section"> <div class="title">Second Section</div> </div> <div class="third section"> <div class="title">Third Section</div> </div> </div> The following is my CSS - div.data { position: relative; top: 1em; width: 100em; } div.data div.name { color: #0066FF; font-weight: bold; } div.data div.section div.title { color: green; font-weight: bold; } /** first section **/ div.data div.first div.settings { position: relative; width: 799px; border-top: 1px solid; float: left; } div.data div.first div.left { border-left: 1px solid; } div.data div.first div.settings div.row { border-bottom: 1px solid; clear: both; height: 2em; } div.data div.first div.settings div.row div { float: left; height: 22px; padding: 5px; border-right: 1px solid; } div.data div.first div.settings div.row div.field { width: 192px; } div.data div.first div.settings div.row div.value { width: 585px; } /** second section **/ div.data div.second { clear: both; } For the first section, I have a title and a table that is made up of a left and right. Both of these are floated left and cleared. The rows of the left and right table have a field and value which are also floated left and right and cleared. At this point, I expect "first section" to grow as the content inside of it grows. But instead the height is stuck at 22px, the same height as the section title! What is going on? I tried overflow:auto for div.section and that worked. But when I tried to set this style for div.settings in "first section": div.data div.first div.settings { position: relative; top: 1em; } I end up with these scroll bars, instead of the height growing to fit the new changes. And everything was out of whack. I am really at my wit's end trying to figure this out. If anyone can give me any suggestions on what I am doing wrong, it would be a great help. Thanks.

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