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  • Which game library/engine to choose?

    - by AllTheThingsSheSaid
    I'm not a programming beginner at all. I've tried 2 libraries/engines so far, allegro and Unity. For allegro. i think its not good if i wanna make a career in gaming industry since its not powerful enough. I don't feel comfortable with unity. Its more like a software like photoshop or flash. You can do almost everything with pre-defined functions, tools and with less coding. I need something which offers less tools and pre defined functions and more coding work. It would be awesome if its free and c/c++ based. I need both 2D/3D. and please, don't tell me to make my own library, i am not "that" advance. Any other information about gaming industry would be greatly appreciated.

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  • How can I improve these online java programming puzzles I wrote for my (middle/high school) students?

    - by Arcymag
    I'm teaching some middle and high school students programming right now, and I found that some of them really liked online programming puzzles. So I created http://www.kapparate.com/coder/ , and right now there's 4 categories of puzzles. All the puzzles are set up right now so that variables are pre-initialized, and the user plugs in some code in the middle. For example, the problem might say these are pre-initialized: int x = ????; int y = ????; int z; and then the program might ask the student to write the final line of code: z = x + y;. Now I know I could go a long way in improving the usability of this site (like having an area that lists the pre-defined variables), but I was wondering if this concept seems sound. I know some sites have kids fill in functions, but not all of my students know what functions are yet, and I'm trying to introduce online programming puzzles before that.

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  • In what way I can implement packet filtering function in C++/C#?

    - by Network study
    Background: I am going to design a firewall-like application (with GUI) which will include several functions such as Packet sniffing and packet filtering. Both of the functions should be implemented to support different protocol levels including application, transport, network and link layer. I only know a little in C#.Net programming to perform the IP packet sniffing. It is also known that packet filtering requires the techniques in WFP or LSP and packet sniffing in application requires dll hooking. Questions: I am not sure which programming language(either C++ or C#) would be suitable for designing such an application described above. If I want to implement the packet filtering function, any libraries will be needed? edit01: Someone suggest that winDivert would be helpful, is it true?

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  • What programming language matches this description? [on hold]

    - by Benubird
    I am looking for a functional language that is basically dynamic programming - i.e. one where functions are first-class objects - but where all function calls are asynchronous by default; i.e. you define function X(a,b) = (Y(a)+Z(b)), and when X() is called, it sees it is waiting for the return from two functions, runs one in the current thread, and spawns a new thread to run the other. The future is very much parallel processing; multiple cores, multiple machines, the internet of things, etc. and I was wondering if there was a language specifically designed to make this kind of parallelization easy. I currently have only used imperative languages (c, php, java, ruby, etc), so I don't know anything about what kind of functional languages are available.

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  • Separate parts of a game engine [on hold]

    - by user272716
    I'm pretty new in developing videogames. By now I only used SDL with C/C++ to create games. I'm currently learning OpenGL and I realized that to be fluid and easy to maintain the code must be logically separated. Since I want to use OpenGLES on iOS and Android I was wondering how the engine must be imagined in a technical way, some questions came up: Do I have to separate input/update functions from draw functions in different threads? Is there only one proper way to think a game engine/loop? What kind of assets should I use to create a 3D game using openGl ES to get better performance?

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  • Application window as polygon texture?

    - by nekome
    Is there a way, or method, to have some application rendered as texture in 3D scene on some polygon, and also have full interactivity with it? I'm talking about Windows platform, and maybe OpenGL but I guess it doesn't matter is it OGL or DX. For example: I run Calculator using WINAPI functions (preferably hidden, not showing on desktop) and I want to render it inside 3D scene on some polygon but still be able to type or click buttons and have it respond. My idea to realize this is to have WINAPI take screenshot (or render it to memory if possible) of that Calculator and pass it to OpenGL as texture for each frame (I'm experimenting with SDL through pygame) and for mouse interactivity to use coordination translation and calculate where on application window it would act, and then use WINAPI functions such as SetCursorPos to set cursor ant others to simulate click or something else. I haven't found any tutorials with topic similar to this one. Am I on a right track? Is there better way to do this if possible at all?

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  • How do I correctly multiply an XMMATRIX by a scalar?

    - by user43129
    Using DirectXMath and its XMMATRIX structure in C++ and Direct X 11, how does one multiply that matrix structure by a single float scalar? I want to implement the operation B = A * f; where A and B are XMMATRIX and f is a float. I found all sorts of functions to multiply a matrix by another matrix or a vector. I found all sorts of functions to construct matrices. I could find no scalar multiplication! Why is there no such function? Is there no use case? Did I miss something? How do I implement scalar multiplication?

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  • Assertion failure when trying to write (INSERT, UPDATE) to sqlite database on iPhone.

    - by Mark McFarlane
    I have a really frustrating error that I've spent hours looking at and cannot fix. I can get data from my db no problem with this code, but inserting or updating gives me these errors: *** Assertion failure in +[Functions db_insert_answer:question_type:score:], /Volumes/Xcode/Kanji/Classes/Functions.m:129 *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Error inserting: db_insert_answer:question_type:score:' Here is the code I'm using: [Functions db_insert_answer:[[dict_question objectForKey:@"JISDec"] intValue] question_type:@"kanji_meaning" score:arc4random() % 100]; //update EF, Next_question, n here [Functions db_update_EF:[dict_question objectForKey:@"question"] EF:EF]; To call these functions: +(sqlite3_stmt *)db_query:(NSString *)queryText{ sqlite3 *database = [self get_db]; sqlite3_stmt *statement; NSLog(queryText); if (sqlite3_prepare_v2(database, [queryText UTF8String], -1, &statement, nil) == SQLITE_OK) { } else { NSLog(@"HMM, COULDNT RUN QUERY: %s\n", sqlite3_errmsg(database)); } sqlite3_close(database); return statement; } +(void)db_insert_answer:(int)obj_id question_type:(NSString *)question_type score:(int)score{ sqlite3 *database = [self get_db]; sqlite3_stmt *statement; char *errorMsg; char *update = "INSERT INTO Answers (obj_id, question_type, score, date) VALUES (?, ?, ?, DATE())"; if (sqlite3_prepare_v2(database, update, -1, &statement, nil) == SQLITE_OK) { sqlite3_bind_int(statement, 1, obj_id); sqlite3_bind_text(statement, 2, [question_type UTF8String], -1, NULL); sqlite3_bind_int(statement, 3, score); } if (sqlite3_step(statement) != SQLITE_DONE){ NSAssert1(0, @"Error inserting: %s", errorMsg); } sqlite3_finalize(statement); sqlite3_close(database); NSLog(@"Answer saved"); } +(void)db_update_EF:(NSString *)kanji EF:(int)EF{ sqlite3 *database = [self get_db]; sqlite3_stmt *statement; //NSLog(queryText); char *errorMsg; char *update = "UPDATE Kanji SET EF = ? WHERE Kanji = '?'"; if (sqlite3_prepare_v2(database, update, -1, &statement, nil) == SQLITE_OK) { sqlite3_bind_int(statement, 1, EF); sqlite3_bind_text(statement, 2, [kanji UTF8String], -1, NULL); } else { NSLog(@"HMM, COULDNT RUN QUERY: %s\n", sqlite3_errmsg(database)); } if (sqlite3_step(statement) != SQLITE_DONE){ NSAssert1(0, @"Error updating: %s", errorMsg); } sqlite3_finalize(statement); sqlite3_close(database); NSLog(@"Update saved"); } +(sqlite3 *)get_db{ sqlite3 *database; NSFileManager *fileManager = [NSFileManager defaultManager]; NSString *copyFrom = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"/kanji_training.sqlite"]; if([fileManager fileExistsAtPath:[self dataFilePath]]) { //NSLog(@"DB FILE ALREADY EXISTS"); } else { [fileManager copyItemAtPath:copyFrom toPath:[self dataFilePath] error:nil]; NSLog(@"COPIED DB TO DOCUMENTS BECAUSE IT DIDNT EXIST: NEW INSTALL"); } if (sqlite3_open([[self dataFilePath] UTF8String], &database) != SQLITE_OK) { sqlite3_close(database); NSAssert(0, @"Failed to open database"); NSLog(@"FAILED TO OPEN DB"); } else { if([fileManager fileExistsAtPath:[self dataFilePath]]) { //NSLog(@"DB PATH:"); //NSLog([self dataFilePath]); } } return database; } + (NSString *)dataFilePath { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; return [documentsDirectory stringByAppendingPathComponent:@"kanji_training.sqlite"]; } I really can't work it out! Can anyone help me? Many thanks.

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  • How can I read the verbose output from a Cmdlet in C# using Exchange Powershell

    - by mrkeith
    Environment: Exchange 2007 sp3 (2003 sp2 mixed mode) Visual Studio 2008, .Net 3.5 Hello, I'm working with an Exchange powershell move-mailbox cmdlet and have noted when I do so from the Exchange Management shell (using the Verbose switch) there is a ton of real-time information provided. To provide a little context, I'm attempting to create a UI application that moves mailboxes similarly to the Exchange Management Console but desire to support an input file and specific server/database destinations for each entry (and threading). Here's roughly what I have at present but I'm not sure if there is an event I need to register for or what... And to be clear, I desire to get this information in real-time so I may update my UI to reflect what's occurring in the move sequence for the appropriate user (pretty much like the native functionality offered in the Management Console). And in case you are wondering, the reason why I'm not content with the Management Console functionality is, I have an algorithm which I'm using to balance users depending on storage limit, Blackberry use, journaling, exception mailbox size etc which demands user be mapped to specific locations... and I do not desire to create many/several move groups for each common destination or to hunt for lists of users individually through the management console UI. I can not seem to find any good documentation or examples of how to tie into reading the verbose messages that are provided within the console using C# (I see value in being able to read this kind of information in many different scenarios). I've explored the Invoke and InvokeAsync methods and the StateChanged & DataReady events but none of these seem to provide the information (verbose comments) that I'm after. Any direction or examples that can be provided will be very appreciated! A code sample which is little more than how I would ordinarily call any other powershell command follows: // config to use ExMgmt shell, create runspace and open it RunspaceConfiguration rsConfig = RunspaceConfiguration.Create(); PSSnapInException snapInException = null; PSSnapInInfo info = rsConfig.AddPSSnapIn("Microsoft.Exchange.Management.PowerShell.Admin", out snapInException); if (snapInException != null) throw snapInException; Runspace runspace = RunspaceFactory.CreateRunspace(rsConfig); try { runspace.Open(); // create a pipeline and feed script text Pipeline pipeline = runspace.CreatePipeline(); string targetDatabase = @"myServer\myStorageGroup\myDB"; string mbxOwner = "[email protected]"; Command myMoveMailbox = new Command("Move-Mailbox", false, false); myMoveMailbox.Parameters.Add("Identity", mbxOwner); myMoveMailbox.Parameters.Add("TargetDatabase", targetDatabase); myMoveMailbox.Parameters.Add("Verbose"); myMoveMailbox.Parameters.Add("ValidateOnly"); myMoveMailbox.Parameters.Add("Confirm", false); pipeline.Commands.Add(myMoveMailbox); System.Collections.ObjectModel.Collection output = null; // these next few lines that are commented out are where I've tried // registering for events and calling asynchronously but this doesn't // seem to get me anywhere closer // //pipeline.StateChanged += new EventHandler(pipeline_StateChanged); //pipeline.Output.DataReady += new EventHandler(Output_DataReady); //pipeline.InvokeAsync(); //pipeline.Input.Close(); //return; tried these variations that are commented out but none seem to be useful output = pipeline.Invoke(); // Check for errors in the pipeline and throw an exception if necessary if (pipeline.Error != null && pipeline.Error.Count 0) { StringBuilder pipelineError = new StringBuilder(); pipelineError.AppendFormat("Error calling Test() Cmdlet. "); foreach (object item in pipeline.Error.ReadToEnd()) pipelineError.AppendFormat("{0}\n", item.ToString()); throw new Exception(pipelineError.ToString()); } foreach (PSObject psObject in output) { // blah, blah, blah // this is normally where I would read details about a particular PS command // but really pertains to a command once it finishes and has nothing to do with // the verbose messages that I'm after... since this part of the methods pertains // to the after-effects of a command having run, I'm suspecting I need to look to // the asynch invoke method but am not certain or knowing how. } } finally { runspace.Close(); } Thanks! Keith

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  • certain Smarty tags don't work in OpenX templates

    - by mikez302
    I am on a team that is developing an OpenX plugin, and I am responsible for the UI. I noticed that if I use certain Smarty tags in my template, the app doesn't work and I see an error message, similar to this: Plugin by name 'Html_select_date' was not found in the registry; used paths: default_views_helpers_: /openx/www/admin/plugins/myApp/application/modules/default/views/helpers/ OX_OXP_UI_View_Helper_: /openx/www/admin/plugins/myApp/application/../library/OX/OXP/UI/View/Helper/ OX_UI_View_Helper_: /openx/www/admin/plugins/myApp/application/../library/OX/UI/View/Helper/ Zend_View_Helper_: Zend/View/Helper/ (stack trace) The stack trace looks like this: #0 /openx/www/admin/plugins/myApp/library/Zend/View/Abstract.php(1117): Zend_Loader_PluginLoader-load('Html_select_dat...') #1 /openx/www/admin/plugins/myApp/library/Zend/View/Abstract.php(568): Zend_View_Abstract-_getPlugin('helper', 'html_select_dat...') #2 /openx/www/admin/plugins/myApp/library/OX/UI/Smarty/SmartyWithViewHelper.php(25): Zend_View_Abstract-getHelper('html_select_dat...') #3 /openx/var/templates_compiled/%2Fdefault%2Fviews%2Fscripts%2Findex%2Fview-reports.html^%%E8^E80^E80B56F2%%view-reports.html.php(38): OX_UI_Smarty_SmartyWithViewHelper-callViewHelper('html_select_dat...', Array) #4 /openx/lib/smarty/Smarty.class.php(1274): include('/openx...') #5 /openx/www/admin/plugins/myApp/library/OX/UI/View/SmartyView.php(103): Smarty-fetch('/openx...') #6 /openx/www/admin/plugins/myApp/library/Zend/View/Abstract.php(832): OX_UI_View_SmartyView-_run('/openx...') #7 /openx/www/admin/plugins/myApp/library/OX/UI/View/SmartyView.php(151): Zend_View_Abstract-render('index/view-repo...') #8 /openx/www/admin/plugins/myApp/library/OX/UI/View/Helper/WithViewScript.php(23): OX_UI_View_SmartyView-render('index/view-repo...') #9 /openx/www/admin/plugins/myApp/application/modules/default/views/helpers/ViewReports.php(5): OX_UI_View_Helper_WithViewScript::renderViewScript('index/view-repo...', Array) #10 /openx/www/admin/plugins/myApp/application/modules/default/controllers/IndexController.php(98): Default_Views_Helpers_ViewReports-renderPage() #11 /openx/www/admin/plugins/myApp/library/Zend/Controller/Action.php(512): IndexController-viewReportsAction() #12 /openx/www/admin/plugins/myApp/library/Zend/Controller/Dispatcher/Standard.php(288): Zend_Controller_Action-dispatch('viewReportsActi...') #13 /openx/www/admin/plugins/myApp/library/Zend/Controller/Front.php(945): Zend_Controller_Dispatcher_Standard-dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http)) #14 /openx/www/admin/plugins/myApp/application/bootstrap.php(117): Zend_Controller_Front-dispatch() #15 /openx/www/admin/plugins/myApp/public/index.php(7): require('/openx...') #16 {main} This does not happen with all Smarty tags. For example, I can use {if}, {foreach}, or {assign} tags without any problems. But whenever I try to use {html_select_date}, {html_image}, or {html_table}, I get the errors. In case this matters, the programmer who is designing the plugin copied the openXWorkflow plugin and made some changes. I noticed that the openXWorkflow plugin has a file (openx/plugins_repo/openXWorkflow/www/admin/plugins/openXWorkflow/library/OX/UI/Smarty/SmartyCompilerWithViewHelper.php) with a class that overrides the default Smarty compiler, supposedly with the ability to compile shorthands for calling ZF view helpers. That file has a list of Smarty functions, but the list is incomplete. If I add the functions to the list, or simply delete the file, my template works fine, but I don't like to change library files. It may make the app hard to maintain, and I don't know if it will mess up something else. The file has the comment "There is no easy access to the list of Smarty's built-in functions so we need to list them here. HTML-specific functions are not included as we cover HTML generation separately.", so it seems like certain Smarty functions may be disabled on purpose for some reason. Will anything bad happen if I try to use them? If, for example, I want to use the {html_select_date} tag in my template, how would I go about doing that? Keep in mind that much of this stuff is new and unfamiliar to me. This is my first time ever using OpenX or Smarty, and I only have a little bit of experience with the Zend framework. Please let me know if we are using the wrong approach.

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  • Getting the constructor of an Interface Type through reflection, is there a better approach than loo

    - by Will Marcouiller
    I have written a generic type: IDirectorySource<T> where T : IDirectoryEntry, which I'm using to manage Active Directory entries through my interfaces objects: IGroup, IOrganizationalUnit, IUser. So that I can write the following: IDirectorySource<IGroup> groups = new DirectorySource<IGroup>(); // Where IGroup implements `IDirectoryEntry`, of course.` foreach (IGroup g in groups.ToList()) { listView1.Items.Add(g.Name).SubItems.Add(g.Description); } From the IDirectorySource<T>.ToList() methods, I use reflection to find out the appropriate constructor for the type parameter T. However, since T is given an interface type, it cannot find any constructor at all! Of course, I have an internal class Group : IGroup which implements the IGroup interface. No matter how hard I have tried, I can't figure out how to get the constructor out of my interface through my implementing class. [DirectorySchemaAttribute("group")] public interface IGroup { } internal class Group : IGroup { internal Group(DirectoryEntry entry) { NativeEntry = entry; Domain = NativeEntry.Path; } // Implementing IGroup interface... } Within the ToList() method of my IDirectorySource<T> interface implementation, I look for the constructor of T as follows: internal class DirectorySource<T> : IDirectorySource<T> { // Implementing properties... // Methods implementations... public IList<T> ToList() { Type t = typeof(T) // Let's assume we're always working with the IGroup interface as T here to keep it simple. // So, my `DirectorySchema` property is already set to "group". // My `DirectorySearcher` is already instantiated here, as I do it within the DirectorySource<T> constructor. Searcher.Filter = string.Format("(&(objectClass={0}))", DirectorySchema) ConstructorInfo ctor = null; ParameterInfo[] params = null; // This is where I get stuck for now... Please see the helper method. GetConstructor(out ctor, out params, new Type() { DirectoryEntry }); SearchResultCollection results = null; try { results = Searcher.FindAll(); } catch (DirectoryServicesCOMException ex) { // Handling exception here... } foreach (SearchResult entry in results) entities.Add(ctor.Invoke(new object() { entry.GetDirectoryEntry() })); return entities; } } private void GetConstructor(out ConstructorInfo constructor, out ParameterInfo[] parameters, Type paramsTypes) { Type t = typeof(T); ConstructorInfo[] ctors = t.GetConstructors(BindingFlags.CreateInstance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.InvokeMethod); bool found = true; foreach (ContructorInfo c in ctors) { parameters = c.GetParameters(); if (parameters.GetLength(0) == paramsTypes.GetLength(0)) { for (int index = 0; index < parameters.GetLength(0); ++index) { if (!(parameters[index].GetType() is paramsTypes[index].GetType())) found = false; } if (found) { constructor = c; return; } } } // Processing constructor not found message here... } My problem is that T will always be an interface, so it never finds a constructor. Is there a better way than looping through all of my assembly types for implementations of my interface? I don't care about rewriting a piece of my code, I want to do it right on the first place so that I won't need to come back again and again and again. EDIT #1 Following Sam's advice, I will for now go with the IName and Name convention. However, is it me or there's some way to improve my code? Thanks! =)

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  • Issue getting camera emulation to work with Tom G's HttpCamera

    - by user591524
    I am trying to use the android emulator to preview video from webcam. I have used the tom gibara sample code, minus the webbroadcaster (i am instead using VLC streaming via http). So, I have modified the SDK's "CameraPreview" app to use the HttpCamera, but the stream never appears. Debugging through doesn't give me any clues either. I wonder if anything obvious is clear to others? The preview app launches and remains black. Notes: 1) I have updated the original CameraPreview class as described here: http://www.inter-fuser.com/2009/09/live-camera-preview-in-android-emulator.html, but referencing httpCamera instead of socketcamera. 2) I updated Tom's original example to reference "Camera" type instead of deprecated "CameraDevice" type. 3) Below is my CameraPreview.java. 4) THANK YOU package com.example.android.apis.graphics; import android.app.Activity; import android.content.Context; import android.hardware.Camera; import android.os.Bundle; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.Window; import java.io.IOException; import android.graphics.Canvas; // ---------------------------------------------------------------------- public class CameraPreview extends Activity { private Preview mPreview; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Hide the window title. requestWindowFeature(Window.FEATURE_NO_TITLE); // Create our Preview view and set it as the content of our activity. mPreview = new Preview(this); setContentView(mPreview); } } // ---------------------------------------------------------------------- class Preview extends SurfaceView implements SurfaceHolder.Callback { SurfaceHolder mHolder; //Camera mCamera; HttpCamera mCamera;//changed Preview(Context context) { super(context); // Install a SurfaceHolder.Callback so we get notified when the // underlying surface is created and destroyed. mHolder = getHolder(); mHolder.addCallback(this); //mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); mHolder.setType(SurfaceHolder.SURFACE_TYPE_NORMAL);//changed } public void surfaceCreated(SurfaceHolder holder) { // The Surface has been created, acquire the camera and tell it where // to draw. //mCamera = Camera.open(); this.StartCameraPreview(holder); } public void surfaceDestroyed(SurfaceHolder holder) { // Surface will be destroyed when we return, so stop the preview. // Because the CameraDevice object is not a shared resource, it's very // important to release it when the activity is paused. //mCamera.stopPreview();//changed mCamera = null; } public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { // Now that the size is known, set up the camera parameters and begin // the preview. //Camera.Parameters parameters = mCamera.getParameters(); //parameters.setPreviewSize(w, h); //mCamera.setParameters(parameters); //mCamera.startPreview(); this.StartCameraPreview(holder); } private void StartCameraPreview(SurfaceHolder sh) { mCamera = new HttpCamera("10.213.74.247:443", 640, 480, true);//changed try { //mCamera.setPreviewDisplay(holder); Canvas c = sh.lockCanvas(null); mCamera.capture(c); sh.unlockCanvasAndPost(c); } catch (Exception exception) { //mCamera.release(); mCamera = null; // TODO: add more exception handling logic here } } }

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  • Problem while inserting data from GUI layer to database

    - by Rahul
    Hi all, I am facing problem while i am inserting new record from GUI part to database table. I have created database table Patient with id, name, age etc....id is identity primary key. My problem is while i am inserting duplicate name in table the control should go to else part, and display the message like...This name is already exits, pls try with another name... but in my coding not getting..... Here is all the code...pls somebody point me out whats wrong or how do this??? GUILayer: protected void BtnSubmit_Click(object sender, EventArgs e) { if (!Page.IsValid) return; int intResult = 0; string name = TxtName.Text.Trim(); int age = Convert.ToInt32(TxtAge.Text); string gender; if (RadioButtonMale.Checked) { gender = RadioButtonMale.Text; } else { gender = RadioButtonFemale.Text; } string city = DropDownListCity.SelectedItem.Value; string typeofdisease = ""; foreach (ListItem li in CheckBoxListDisease.Items) { if (li.Selected) { typeofdisease += li.Value; } } typeofdisease = typeofdisease.TrimEnd(); PatientBAL PB = new PatientBAL(); PatientProperty obj = new PatientProperty(); obj.Name = name; obj.Age = age; obj.Gender = gender; obj.City = city; obj.TypeOFDisease = typeofdisease; try { intResult = PB.ADDPatient(obj); if (intResult > 0) { lblMessage.Text = "New record inserted successfully."; TxtName.Text = string.Empty; TxtAge.Text = string.Empty; RadioButtonMale.Enabled = false; RadioButtonFemale.Enabled = false; DropDownListCity.SelectedIndex = 0; CheckBoxListDisease.SelectedIndex = 0; } else { lblMessage.Text = "Name [<b>" + TxtName.Text + "</b>] alredy exists, try another name"; } } catch (Exception ex) { lblMessage.Text = ex.Message.ToString(); } finally { obj = null; PB = null; } } BAL layer: public class PatientBAL { public int ADDPatient(PatientProperty obj) { PatientDAL pdl = new PatientDAL(); try { return pdl.InsertData(obj); } catch { throw; } finally { pdl=null; } } } DAL layer: public class PatientDAL { public string ConString = ConfigurationManager.ConnectionStrings["ConString"].ConnectionString; public int InsertData(PatientProperty obj) { SqlConnection con = new SqlConnection(ConString); con.Open(); SqlCommand com = new SqlCommand("LoadData",con); com.CommandType = CommandType.StoredProcedure; try { com.Parameters.AddWithValue("@Name", obj.Name); com.Parameters.AddWithValue("@Age",obj.Age); com.Parameters.AddWithValue("@Gender",obj.Gender); com.Parameters.AddWithValue("@City", obj.City); com.Parameters.AddWithValue("@TypeOfDisease", obj.TypeOFDisease); return com.ExecuteNonQuery(); } catch { throw; } finally { com.Dispose(); con.Close(); } } } Property Class: public class PatientProperty { private string name; private int age; private string gender; private string city; private string typedisease; public string Name { get { return name; } set { name = value; } } public int Age { get { return age; } set { age = value; } } public string Gender { get { return gender; } set { gender = value; } } public string City { get { return city; } set { city = value; } } public string TypeOFDisease { get { return typedisease; } set { typedisease = value; } } } This is my stored Procedure: CREATE PROCEDURE LoadData ( @Name varchar(50), @Age int, @Gender char(10), @City char(10), @TypeofDisease varchar(50) ) as insert into Patient(Name, Age, Gender, City, TypeOfDisease)values(@Name,@Age, @Gender, @City, @TypeofDisease) GO

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  • Cannot update any cells in datagrid in vb6

    - by Hybrid SyntaX
    Hello I'm trying to update a row in datagrid but the problem is that i can't even change its cell values I had set my datagrid AllowUpdate property to true , but i can't still change any cell values Option Explicit Dim conn As New ADODB.Connection Dim cmd As New ADODB.Command Dim recordset As New ADODB.recordset Public Action As String Public Person_Id As Integer Public Selected_Person_Id As Integer Public Phone_Type As String Public Sub InitializeConnection() Dim str As String str = _ "Provider=Microsoft.Jet.OLEDB.4.0;" & _ "Data Source=" + App.Path + "\phonebook.mdb;" & _ "Persist Security Info=False" conn.CursorLocation = adUseClient If conn.state = 0 Then conn.ConnectionString = str conn.Open (conn.ConnectionString) End If End Sub Public Sub AbandonConnection() If conn.state <> 0 Then conn.Close End If End Sub Public Sub Persons_Read() Dim qry_all As String ' qry_all = "select * from person,web,phone Where web.personid = person.id And phone.personid = person.id" qry_all = "SELECT * FROM person order by id" Call InitializeConnection cmd.CommandText = qry_all cmd.CommandType = adCmdText Set cmd.ActiveConnection = conn If conn.state = 1 Then Set recordset = cmd.Execute() End If BindDatagrid End Sub Private Function Person_Delete(id As Integer) Dim qry_all As String qry_all = "Delete * from person where person.id= " & id & " " Call InitializeConnection cmd.CommandText = qry_all cmd.CommandType = adCmdText Set cmd.ActiveConnection = conn If conn.state = 1 Then Set recordset = cmd.Execute() End If dg_Persons.Refresh End Function Private Function Person_Update() End Function Public Sub BindDatagrid() Set Me.dg_Persons.DataSource = recordset Me.dg_Persons.Refresh dg_Persons.Columns(0).Visible = False dg_Persons.Columns(4).Visible = False dg_Persons.Columns(1).Caption = "Name" dg_Persons.Columns(2).Caption = "Family" dg_Persons.Columns(3).Caption = "Nickname" dg_Persons.Columns(5).Caption = "Title" dg_Persons.Columns(6).Caption = "Job" End Sub Public Function DatagridReferesh() Call Me.Persons_Read End Function Private Sub cmd_Add_Click() frm_Person_Add.Caption = "Add a new person" frm_Person_Add.Show End Sub Private Sub cmd_Business_Click() ' frm_Phone.Caption = "Business Phones" frm_Phone.Phone_Type = "Business" frm_Phone.Person_Id = Selected_Person_Id frm_Phone.Tag = Selected_Person_Id frm_Phone.Show End Sub Private Sub cmd_Delete_Click() Dim msg_input As Integer msg_input = MsgBox("Are you sure you want to delete this person ?", vbYesNo) If msg_input = vbYes Then Person_Delete Selected_Person_Id MsgBox ("The person is deleted") frm_Phone.DatagridReferesh End If End Sub Private Sub cmd_Home_Click() 'frm_Phone.Caption = "Home Phones" frm_Phone.Phone_Type = "Home" frm_Phone.Person_Id = Selected_Person_Id frm_Phone.Tag = Selected_Person_Id frm_Phone.Show End Sub Private Sub cmd_Update_Click() If Not Selected_Person_Id = 0 Then frm_Person_Edit.Person_Id = Selected_Person_Id frm_Person_Edit.Show Else MsgBox "No person is selected" End If End Sub Public Function AddParam(name As String, param As Variant, paramType As DataTypeEnum) As ADODB.Parameter If param = "" Or param = Null Then param = " " End If Dim objParam As New ADODB.Parameter Set objParam = cmd.CreateParameter(name, paramType, adParamInput, Len(param), param) objParam.Value = Trim(param) Set AddParam = objParam End Function Private Sub Command1_Click() DatagridReferesh End Sub Private Sub Command2_Click() frm_Internet.Person_Id = Selected_Person_Id frm_Internet.Show End Sub Private Sub dg_Persons_BeforeColEdit(ByVal ColIndex As Integer, ByVal KeyAscii As Integer, Cancel As Integer) ' MsgBox ColIndex ' dg_Persons.Columns(ColIndex).Text = "S" ' dg_Persons.Columns(ColIndex).Locked = False ' dg_Persons.Columns(ColIndex).Text = "" 'dg_Persons.Columns(ColIndex).Value = "" 'Person_Edit dg_Persons.Columns(0).Value, dg_Persons.Columns(1).Value, dg_Persons.Columns(2).Value,dg_Persons.Columns(3).Value,dg_Persons.Columns(4).Value, dg_Persons.Columns(5).Value End Sub Private Sub dg_Persons_BeforeColUpdate(ByVal ColIndex As Integer, OldValue As Variant, Cancel As Integer) MsgBox ColIndex End Sub Private Sub dg_Persons_Click() If dg_Persons.Row <> -1 Then dg_Persons.SelBookmarks.Add Me.dg_Persons.RowBookmark(dg_Persons.Row) Selected_Person_Id = Val(dg_Persons.Columns(0).Value) End If End Sub Private Sub Form_Load() ' dg_Persons.AllowUpdate = True ' dg_Persons.EditActive = True Call Persons_Read dg_Persons.AllowAddNew = True dg_Persons.Columns(2).Locked = False End Sub Private Function Person_Edit(id As Integer, name As String, family As String, nickname As String, title As String, job As String) InitializeConnection cmd.CommandText = "Update person set name=@name , family=@family , nickname=@nickname , title =@title , job=@job where id= " & id & "" cmd.Parameters.Append AddParam("name", name, adVarChar) cmd.Parameters.Append AddParam("family", family, adVarChar) cmd.Parameters.Append AddParam("nickname", nickname, adVarChar) cmd.Parameters.Append AddParam("title", title, adVarChar) cmd.Parameters.Append AddParam("job", job, adVarChar) cmd.ActiveConnection = conn cmd.CommandType = adCmdText cmd.Execute End Function Private Function Person_Search(q As String) Dim qry_all As String qry_all = "SELECT * FROM person where person.name like '%" & q & "%' or person.family like '%" & q & "%' or person.nickname like '%" & q & "%'" Call InitializeConnection cmd.CommandText = qry_all cmd.CommandType = adCmdText Set cmd.ActiveConnection = conn If conn.state = 1 Then Set recordset = cmd.Execute() End If BindDatagrid End Function Private Sub mnu_About_Click() frm_About.Show End Sub Private Sub submnu_exit_Click() End End Sub Private Sub txt_Search_Change() Person_Search txt_Search.Text End Sub Thanks in advance

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  • JavaScript String Library - Hitting a Minor Roadblock

    - by OneNerd
    Ok - am trying to create a string library that contains a handful of useful things missing from JavaScript. Here is what I have so far: ;function $__STRING__$(in_string) { /* internal functions */ this.s = in_string; this.toString = function(){return this.s;}; /******* these functions CAN be chained (they return the $__STRING__$ object) ******/ this.uppercase = function(){this.s = this.s.toUpperCase(); return this;}; this.lowercase = function(){this.s = this.s.toLowerCase(); return this;}; this.trim = function(){this.s = this.s.replace(/^\s+|\s+$/g,""); return this;}; this.ltrim = function(){this.s = this.s.replace(/^\s+/,""); return this;}; this.rtrim = function(){this.s = this.s.replace(/\s+$/,""); return this;}; this.striptags = function(){this.s = this.s.replace(/<\/?[^>]+(>|$)/g, ""); return this;}; this.escapetags = function(){this.s = this.s.replace(/</g,"<").replace(/>/g,">"); return this;}; this.unescapetags = function(){this.s = this.s.replace(/</g,"<").replace(/>/g,">"); return this;}; this.underscorize = function(){this.s = this.s.replace(/ /g,"_"); return this;}; this.dasherize = function(){this.s = this.s.replace(/ /g,"-"); return this;}; this.spacify = function(){this.s = this.s.replace(/_/g," "); return this;}; this.left = function(length){this.s = this.s.substring(length,0); return this;}; this.right = function(length){this.s = this.s.substring(this.s.length,this.s.length-length); return this;}; this.shorten = function(length){if(this.s.length<=length){return this.s;}else{this.left(this.s,length)+"..."; return this;}}; this.mid = function(start,length){return this.s.substring(start,(length+start));}; this._down = function(){return this.s;}; // breaks chain, but lets you run core js string functions /******* these functions CANNOT be chained (they do not return the $__STRING__$ object) ******/ this.contains = function(needle){if(this.s.indexOf(needle)!==-1){return true;}else{return false;}}; this.startswith = function(needle){if(this.left(this.s,needle.length)==needle){return true;}else{return false;}}; this.endswith = function(needle){if(this.right(this.s,needle.length)==needle){return true;}else{return false;};}; } function $E(in_string){return new $__STRING__$(in_string);} String.prototype._enhance = function(){return new $__STRING__$(this);}; String.prototype._up = function(){return new $__STRING__$(this);}; It works fairly well, and I can chain commands etc. I set it up so I can cast a string as an enhanced string these 2 ways: $E('some string'); 'some string'._enhance(); However, each time I want to use a built-in string method, I need to convert it back to a string first. So for now, I put in _down() and _up() methods like so: alert( $E("hello man").uppercase()._down().replace("N", "Y")._up().dasherize() ); alert( "hello man"._enhance().uppercase()._down().replace("N", "Y")._up().dasherize() ); It works fine, but what I really want to do it be able to use all of the built-in functions a string can use. I realize I can just replicate each function inside my object, but I was hoping there was a simpler way. So question is, is there an easy way to do that? Thanks -

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  • can a python script know that another instance of the same script is running... and then talk to it?

    - by Justin Grant
    I'd like to prevent multiple instances of the same long-running python command-line script from running at the same time, and I'd like the new instance to be able to send data to the original insance before the new instance commits suicide. How can I do this in a cross-platform way? Specifically, I'd like to enable the following behavior: "foo.py" is launched from the command line, and it will stay running for a long time-- days or weeks until the machine is rebooted or the parent process kills it. every few minutes the same script is launched again, but with different command-line parameters when launched, the script should see if any other instances are running. if other instances are running, then instance #2 should send its command-line parameters to instance #1, and then instance #2 should exit. instance #1, if it receives command-line parameters from another script, should spin up a new thread and (using the command-line parameters sent in the step above) start performing the work that instance #2 was going to perform. So I'm looking for two things: how can a python program know another instance of itself is running, and then how can one python command-line program communicate with another? Making this more complicated, the same script needs to run on both Windows and Linux, so ideally the solution would use only the Python standard library and not any OS-specific calls. Although if I need to have a Windows codepath and an *nix codepath (and a big if statement in my code to choose one or the other), that's OK if a "same code" solution isn't possible. I realize I could probably work out a file-based approach (e.g. instance #1 watches a directory for changes and each instance drops a file into that directory when it wants to do work) but I'm a little concerned about cleaning up those files after a non-graceful machine shutdown. I'd ideally be able to use an in-memory solution. But again I'm flexible, if a persistent-file-based approach is the only way to do it, I'm open to that option. More details: I'm trying to do this because our servers are using a monitoring tool which supports running python scripts to collect monitoring data (e.g. results of a database query or web service call) which the monitoring tool then indexes for later use. Some of these scripts are very expensive to start up but cheap to run after startup (e.g. making a DB connection vs. running a query). So we've chosen to keep them running in an infinite loop until the parent process kills them. This works great, but on larger servers 100 instances of the same script may be running, even if they're only gathering data every 20 minutes each. This wreaks havoc with RAM, DB connection limits, etc. We want to switch from 100 processes with 1 thread to one process with 100 threads, each executing the work that, previously, one script was doing. But changing how the scripts are invoked by the monitoring tool is not possible. We need to keep invocation the same (launch a process with different command-line parameters) but but change the scripts to recognize that another one is active, and have the "new" script send its work instructions (from the command line params) over to the "old" script.

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  • Getting the constructor of an Interface Type through reflection?

    - by Will Marcouiller
    I have written a generic type: IDirectorySource<T> where T : IDirectoryEntry, which I'm using to manage Active Directory entries through my interfaces objects: IGroup, IOrganizationalUnit, IUser. So that I can write the following: IDirectorySource<IGroup> groups = new DirectorySource<IGroup>(); // Where IGroup implements `IDirectoryEntry`, of course.` foreach (IGroup g in groups.ToList()) { listView1.Items.Add(g.Name).SubItems.Add(g.Description); } From the IDirectorySource<T>.ToList() methods, I use reflection to find out the appropriate constructor for the type parameter T. However, since T is given an interface type, it cannot find any constructor at all! Of course, I have an internal class Group : IGroup which implements the IGroup interface. No matter how hard I have tried, I can't figure out how to get the constructor out of my interface through my implementing class. [DirectorySchemaAttribute("group")] public interface IGroup { } internal class Group : IGroup { internal Group(DirectoryEntry entry) { NativeEntry = entry; Domain = NativeEntry.Path; } // Implementing IGroup interface... } Within the ToList() method of my IDirectorySource<T> interface implementation, I look for the constructor of T as follows: internal class DirectorySource<T> : IDirectorySource<T> { // Implementing properties... // Methods implementations... public IList<T> ToList() { Type t = typeof(T) // Let's assume we're always working with the IGroup interface as T here to keep it simple. // So, my `DirectorySchema` property is already set to "group". // My `DirectorySearcher` is already instantiated here, as I do it within the DirectorySource<T> constructor. Searcher.Filter = string.Format("(&(objectClass={0}))", DirectorySchema) ConstructorInfo ctor = null; ParameterInfo[] params = null; // This is where I get stuck for now... Please see the helper method. GetConstructor(out ctor, out params, new Type() { DirectoryEntry }); SearchResultCollection results = null; try { results = Searcher.FindAll(); } catch (DirectoryServicesCOMException ex) { // Handling exception here... } foreach (SearchResult entry in results) entities.Add(ctor.Invoke(new object() { entry.GetDirectoryEntry() })); return entities; } } private void GetConstructor(out ConstructorInfo constructor, out ParameterInfo[] parameters, Type paramsTypes) { Type t = typeof(T); ConstructorInfo[] ctors = t.GetConstructors(BindingFlags.CreateInstance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.InvokeMethod); bool found = true; foreach (ContructorInfo c in ctors) { parameters = c.GetParameters(); if (parameters.GetLength(0) == paramsTypes.GetLength(0)) { for (int index = 0; index < parameters.GetLength(0); ++index) { if (!(parameters[index].GetType() is paramsTypes[index].GetType())) found = false; } if (found) { constructor = c; return; } } } // Processing constructor not found message here... } My problem is that T will always be an interface, so it never finds a constructor. Might somebody guide me to the right path to follow in this situation?

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  • Haskell: monadic takeWhile?

    - by Mark Rushakoff
    I have some functions written in C that I call from Haskell. These functions return IO (CInt). Sometimes I want to run all of the functions regardless of what any of them return, and this is easy. For sake of example code, this is the general idea of what's happening currently: Prelude> let f x = print x >> return x Prelude> mapM_ f [0..5] 0 1 2 3 4 5 Prelude> I get my desired side effects, and I don't care about the results. But now I need to stop execution immediately after the first item that doesn't return my desired result. Let's say a return value of 4 or higher requires execution to stop - then what I want to do is this: Prelude> takeWhile (<4) $ mapM f [0..5] Which gives me this error: <interactive:1:22: Couldn't match expected type `[b]' against inferred type `IO a' In the first argument of `mapM', namely `f' In the second argument of `($)', namely `mapM f ([0 .. 5])' In the expression: takeWhile (< 4) $ mapM f ([0 .. 5]) And that makes sense to me - the result is still contained in the IO monad, and I can't just compare two values contained in the IO monad. I know this is precisely the purpose of monads -- chaining results together and discarding operations when a certain condition is met -- but is there an easy way to "wrap up" the IO monad in this case to stop executing the chain upon a condition of my choosing, without writing an instance of MonadPlus? Can I just "unlift" the values from f, for the purposes of the takeWhile? Is this a solution where functors fit? Functors haven't "clicked" with me yet, but I sort of have the impression that this might be a good situation to use them. Update: @sth has the closest answer to what I want - in fact, that's almost exactly what I was going for, but I'd still like to see whether there is a standard solution that isn't explicitly recursive -- this is Haskell, after all! Looking back on how I worded my question, now I can see that I wasn't clear enough about my desired behavior. The f function I used above for an example was merely an example. The real functions are written in C and used exclusively for their side effects. I can't use @Tom's suggestion of mapM_ f (takeWhile (&lt;4) [0..5]) because I have no idea whether any input will really result in success or failure until executed. I don't actually care about the returned list, either -- I just want to call the C functions until either the list is exhausted or the first C function returns a failure code. In C-style pseudocode, my behavior would be: do { result = function_with_side_effects(input_list[index++]); } while (result == success && index < max_index); So again, @sth's answer performs the exact behavior that I want, except that the results may (should?) be discarded. A dropWhileM_ function would be equivalent for my purposes. Why isn't there a function like that or takeWhileM_ in Control.Monad? I see that there was a similar discussion on a mailing list, but it appears that nothing has come of that.

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  • map with string is broken?[solved]

    - by teritriano
    Yes. I can't see what im doing wrong the map is string, int Here the method bange::function::Add(lua_State *vm){ //userdata, function if (!lua_isfunction(vm, 2)){ cout << "bange: AddFunction: First argument isn't a function." << endl; return false;} void *pfunction = const_cast<void *>(lua_topointer(vm, 2)); char key[32] = {0}; snprintf(key, 32, "%p", pfunction); cout << "Key: " << key << endl; string strkey = key; if (this->functions.find(strkey) != this->functions.end()){ luaL_unref(vm, LUA_REGISTRYINDEX, this->functions[strkey]);} this->functions[strkey] = luaL_ref(vm, LUA_REGISTRYINDEX); return true; Ok, when the code is executed... Program received signal SIGSEGV, Segmentation fault. 0x00007ffff6e6caa9 in std::basic_string<char, std::char_traits<char>, std::allocator<char> > ::compare(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const () from /usr/lib/libstdc++.so.6 Seriously, what's wrong with my code. Thanks for help. Edit 1: Ok, I've done the solution and still fails. I've tried directly insert a string but gives the same error. Let's see, the object is a bange::scene inherited from bange::function. I create the object with lua_newuserdata: bange::scene *scene = static_cast<bange::scene *>(lua_newuserdata(vm, sizeof(bange::scene))); (...) scene = new (scene) bange::scene(width, height, nlayers, vm); I need this for LUA garbage collection. Now the access to bange::function::Add from Lua: static int bangefunction_Add(lua_State *vm){ //userdata, function bange::function *function = reinterpret_cast<bange::function *>(lua_touserdata(vm, 1)); cout &lt&lt "object with bange::function: " &lt&lt function << endl; bool added = function->bange::function::Add(vm); lua_pushboolean(vm, static_cast<int>(added)); return 1; } Userdata is bange::scene stored in Lua. Knowing that userdata is scene, in fact, the object's direction is the same when I've created the scene before. I need the reinterpret_cast, and then call the method. The pointer "this" is still the same direction inside the method. solved I did a small test in the bange::function constructor which works without problems. bange::function::function(){ string test("test"); this->functions["test"] = 2; } I finally noticed that the problem is bange::function *function = reinterpret_cast<bange::function *>(lua_touserdata(vm, 1)); because the object is bange::scene and no bange::function (i admit it, a pointer corruption) and this seems more a code design issue. So this, in a way, is solved. Thanks everybody.

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  • BES Express - configure MDS to push messages from 3rd party web application

    - by Max Gontar
    Hi! I have developed IIS web service to send PAP messages using Blackberry Push API over MDS. And there is an application installed on device, configured to receive push messages on appropriate port. Everything works well on MDS simulator. But it's not working well in real environment: I have installed BES Express and register several devices. I can browse MDS url with appropriate port, so url is correct. Also port enabled for reliable pushes is used in push message and in device application. Here is MDS simulator log: <2011-01-12 14:00:03.456 EET>:[272]:<MDS-CS_MDS>:<DEBUG>:<LAYER = SCM, EVENT = PapServlet: request from 0:0:0:0:0:0:0:1 564 bytes...> <2011-01-12 14:00:03.476 EET>:[273]:<MDS-CS_MDS>:<DEBUG>:<LAYER = SCM, EVENT = Mapping PAP request to push request for pushID:pushID:asdas> <2011-01-12 14:00:03.479 EET>:[274]:<MDS-CS_MDS>:<DEBUG>:<LAYER = SCM, EVENT = PushServlet: POST request from [UNKNOWN @ 0:0:0:0:0:0:0:1] to [PAPDEST=WAPPUSH%3D2100000A%253A100%2FTYPE%3DUSER%40rim.net&PORT=100&REQUESTURI=/] : -1 bytes...> <2011-01-12 14:00:03.480 EET>:[275]:<MDS-CS_MDS>:<DEBUG>:<LAYER = SCM, EVENT = submitting push message with id:pushID:asdas> <2011-01-12 14:00:03.482 EET>:[276]:<MDS-CS_MDS>:<DEBUG>:<LAYER = SCM, EVENT = Executing push submit command for pushID:pushID:asdas> <2011-01-12 14:00:03.483 EET>:[278]:<MDS-CS_MDS>:<DEBUG>:<LAYER = SCM, EVENT = Pushing message to: 2100000a> <2011-01-12 14:00:03.484 EET>:[279]:<MDS-CS_MDS>:<DEBUG>:<LAYER = SCM, EVENT = Number of active push connections:1> <2011-01-12 14:00:03.489 EET>:[280]:<MDS-CS_MDS>:<DEBUG>:<LAYER = SCM, EVENT = added server-initiated connection = -872546301, push id = pushID:asdas> <2011-01-12 14:00:03.491 EET>:[281]:<MDS-CS_MDS>:<DEBUG>:<LAYER = SCM, EVENT = Available threads in DefaultJobPool = 9 running JobRunner: DefaultJobRunner-7> <2011-01-12 14:00:03.494 EET>:[282]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, HANDLER = HTTP, EVENT = ReceivedFromServer, DEVICEPIN = 2100000a, CONNECTIONID = -872546301, HTTPTRANSMISSION => <2011-01-12 14:00:03.494 EET>:[282]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, HANDLER = HTTP, EVENT = ReceivedFromServer, DEVICEPIN = 2100000a, CONNECTIONID = -872546301, HTTPTRANSMISSION = [Transmission Line Section]:> <2011-01-12 14:00:03.494 EET>:[282]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, HANDLER = HTTP, EVENT = ReceivedFromServer, DEVICEPIN = 2100000a, CONNECTIONID = -872546301, HTTPTRANSMISSION = POST / HTTP/1.1> <2011-01-12 14:00:03.494 EET>:[282]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, HANDLER = HTTP, EVENT = ReceivedFromServer, DEVICEPIN = 2100000a, CONNECTIONID = -872546301, HTTPTRANSMISSION = [Headers Section]: 8 headers> <2011-01-12 14:00:03.494 EET>:[282]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, HANDLER = HTTP, EVENT = ReceivedFromServer, DEVICEPIN = 2100000a, CONNECTIONID = -872546301, HTTPTRANSMISSION = [Parameters Section]: 3 parameters> <2011-01-12 14:00:03.499 EET>:[283]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, HANDLER = HTTP, EVENT = SentToDevice, DEVICEPIN = 2100000a, CONNECTIONID = -872546301, HTTPTRANSMISSION => <2011-01-12 14:00:03.499 EET>:[283]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, HANDLER = HTTP, EVENT = SentToDevice, DEVICEPIN = 2100000a, CONNECTIONID = -872546301, HTTPTRANSMISSION = [Transmission Line Section]:> <2011-01-12 14:00:03.499 EET>:[283]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, HANDLER = HTTP, EVENT = SentToDevice, DEVICEPIN = 2100000a, CONNECTIONID = -872546301, HTTPTRANSMISSION = POST / HTTP/1.1> <2011-01-12 14:00:03.499 EET>:[283]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, HANDLER = HTTP, EVENT = SentToDevice, DEVICEPIN = 2100000a, CONNECTIONID = -872546301, HTTPTRANSMISSION = [Headers Section]: 9 headers> <2011-01-12 14:00:03.499 EET>:[283]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, HANDLER = HTTP, EVENT = SentToDevice, DEVICEPIN = 2100000a, CONNECTIONID = -872546301, HTTPTRANSMISSION = [Parameters Section]: 3 parameters> <2011-01-12 14:00:03.501 EET>:[284]:<MDS-CS_MDS>:<DEBUG>:<LAYER = SCM, EVENT = Finished JobRunner: DefaultJobRunner-7, available threads in DefaultJobPool = 10, time spent = 8ms> <2011-01-12 14:00:03.521 EET>:[287]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, EVENT = CreatedSendingQueue, DEVICEPIN = 2100000a> <2011-01-12 14:00:03.526 EET>:[290]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, EVENT = Sending, TAG = 1288699908, DEVICEPIN = 2100000a, VERSION = 16, CONNECTIONID = -872546301, SEQUENCE = 0, TYPE = NOTIFY-REQUEST, CONNECTIONHANDLER = http, PROTOCOL = TCP, PARAMETERS = [MGONTAR/10.10.0.35:100], SIZE = 339> <2011-01-12 14:00:03.531 EET>:[291]:<MDS-CS_MDS>:<DEBUG>:<LAYER = SCM, EVENT = Number of active push connections:0> <2011-01-12 14:00:03.591 EET>:[292]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, EVENT = Notification, TAG = 1288699908, STATE = DELIVERED> <2011-01-12 14:00:03.600 EET>:[296]:<MDS-CS_MDS>:<DEBUG>:<LAYER = SCM, EVENT = Device connections: AVG latency (msecs)79> <2011-01-12 14:00:03.600 EET>:[297]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, Removed push connection:-872546301> <2011-01-12 14:00:07.015 EET>:[298]:<MDS-CS_MDS>:<DEBUG>:<LAYER = IPPP, EVENT = RemovedSendingQueue, DEVICEPIN = 2100000a> And here is real MDS log: <2011-01-12 11:35:02.763 GMT>:[3932]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = SCM, PapServlet: request from 192.168.1.241 583 bytes...> <2011-01-12 11:35:02.897 GMT>:[3933]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = SCM, Mapping PAP request to push request for pushID:pushID:sdfsdfwerwer> <2011-01-12 11:35:02.909 GMT>:[3934]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = SCM, PushServlet: POST request from [UNKNOWN @ 192.168.1.241] to [PAPDEST=WAPPUSH%3D22D7F6BD%253A7874%2FTYPE%3DUSER%40rim.net&PORT=7874&REQUESTURI=/]> <2011-01-12 11:35:02.909 GMT>:[3934]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<push id: pushID:sdfsdfwerwer> <2011-01-12 11:35:02.910 GMT>:[3935]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = SCM, submitting push message with id:pushID:sdfsdfwerwer> <2011-01-12 11:35:02.910 GMT>:[3936]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = SCM, Executing push submit command for pushID:pushID:sdfsdfwerwer> <2011-01-12 11:35:02.911 GMT>:[3937]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = SCM, Pushing message to: 22d7f6bd> <2011-01-12 11:35:02.912 GMT>:[3938]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = SCM, Number of active push connections:1> <2011-01-12 11:35:02.931 GMT>:[3939]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = SCM, added server-initiated connection = -1848311806, push id = pushID:sdfsdfwerwer> <2011-01-12 11:35:03.240 GMT>:[3940]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = IPPP, EVENT = CreatedSendingQueue, DEVICEPIN = 22d7f6bd, USERID = u3> <2011-01-12 11:35:03.241 GMT>:[3941]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = IPPP, EVENT = Sending, TAG = 536543251, DEVICEPIN = 22d7f6bd, USERID = u3, VERSION = 16, CONNECTIONID = -1848311806, SEQUENCE = 0, TYPE = NOTIFY-REQUEST, CONNECTIONHANDLER = http, PROTOCOL = TCP, PARAMETERS = [LDN-Server1/192.168.1.240:7874], SIZE = 383> <2011-01-12 11:35:03.241 GMT>:[3942]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = SCM, Number of active push connections:0> <2011-01-12 11:35:03.253 GMT>:[3943]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = SRP, SRPID = S27700165[LDN-SERVER1:3200], EVENT = Sending, VERSION = 1, COMMAND = SEND, TAG = 536543251, SIZE = 570> <2011-01-12 11:35:03.838 GMT>:[3944]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = SRP, SRPID = S27700165[LDN-SERVER1:3200], EVENT = Receiving, VERSION = 1, COMMAND = STATUS, TAG = 536543251, SIZE = 10, STATE = DELIVERED> <2011-01-12 11:35:04.104 GMT>:[3945]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = IPPP, EVENT = Notification, TAG = 536543251, STATE = DELIVERED> <2011-01-12 11:35:04.121 GMT>:[3946]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = SCM, Device connections: AVG latency (msecs)893> <2011-01-12 11:35:04.135 GMT>:[3947]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<INFO >:<LAYER = IPPP, DEVICEPIN = 22d7f6bd, DOMAINNAME = LDN-Server1/192.168.1.240, CONNECTION_TYPE = PUSH_CONN, ConnectionId = -1848311806, DURATION(ms) = 1151, MFH_KBytes = 0, MTH_KBytes = 0.374, MFH_PACKET_COUNT = 0, MTH_PACKET_COUNT = 1> <2011-01-12 11:35:04.144 GMT>:[3948]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = IPPP, Removed push connection:-1848311806> <2011-01-12 11:35:09.264 GMT>:[3949]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = IPPP, EVENT = RemovedSendingQueue, DEVICEPIN = 22d7f6bd, USERID = u3> <2011-01-12 11:35:58.187 GMT>:[3950]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = SRP, SRPID = S27700165[LDN-SERVER1:3200], EVENT = Sending, VERSION = 1, COMMAND = INFO, SIZE = 46> <2011-01-12 11:35:58.187 GMT>:[3951]:<MDS-CS_LDN-SERVER1_MDS-CS_1>:<DEBUG>:<LAYER = SCM, Sent health to S27700165[LDN-SERVER1:3200] Health=[0x 0000 0007 0000 0000],Mask=[0x 0000 0007 0000 0000],Load=[60]> As you can see, logs not really differs, message is marked as delivered. But my app on device not really gets this message (as it works in mds simulator) Please advice me, what may be wrong? Is there some certificate to install or security settings I should configure to make this push message came to device application? Thank you! same question on bbforums

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  • PostgreSQL lots of large Arrays and Writes

    - by strife911
    Hi, I am running a python program that spawns 8 threads and as each thread launch its own postmaster process via psycopg2. This is to maximize the use of my CPU-cores (8). Each thread call a series of SQL Functions. Most of these functions go through many thousands of rows each associated to a large FLOAT8[] Array (250-300) values by using unnest() and multiplying each FLOAT8 by an another FLOAT8 associated to each row. This Array approach minimized the size of the Indexes and the Tables. The Function ends with an Insert into another Table of a row of the same form (pk INT4, array FLOAT8[]). Some SQL Functions called by python will Update a row of these kind of Tables (with large Arrays). Now I currently have configured PostgreSQL to use most of the memory for cache (effective_cache_size of 57 GB I think) and only a small amount of it for shared memory (1GB I think). First, I was wondering what the difference between Cache and Shared memory was in regards to PostgreSQL (and my application). What I have noticed is that only about 20-40% of my total CPU processing power is used during the most Read intensive parts of the application (Select unnest(array) etc). So secondly, I was wondering what I could do to improve this so that 100% of the CPU is used. Based on my observations, it does not seem to have anything to do with python or its GIL. Thanks

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