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• Legacy VB6 application under Win7 SQL error

  - by Shial

  We have a rather unfortunate legacy application at work, written originally in VB6 it predates anybody in our IT department by at least 5 years. We have a contracted developer for ongoing maintenance and where he can he rewrites sections over into .NET code (Not sure about his techniques here, this is a side job for his regular work as an IBM engineer) the application works fine (such as it is) under windows XP. We have only a couple of Windows 7 machines mainly for testing and this application seems to run into a wall. Things like the background not loading and SQL errors. This is even running under administrator. Running an SQL trace from the ODBC control panel shows several interesting things. It makes a connection to the database successfully initially where it runs a query to determine if it is running the correct version. This query works fine. 558-1af0 ENTER SQLExecDirectW HSTMT 0x020D7548 WCHAR * 0x04C8F0F0 [ 115] "SELECT count(*) c FROM tblSoftwareVersion WHERE fldSoftwareVersion = '123456' AND fldSoftwareName = 'Application.VB'" SDWORD 115 BMS 558-1af0 EXIT SQLExecDirectW with return code 1 (SQL_SUCCESS_WITH_INFO) HSTMT 0x020D7548 WCHAR * 0x04C8F0F0 [ 115] "SELECT count(*) c FROM tblSoftwareVersion WHERE fldSoftwareVersion = '123456' AND fldSoftwareName = 'Application.VB'" SDWORD 115 It then seems to drop its connection and can't find the ODBC connection despite the fact its connecting to the same DB. From the trace it looks like it configures the connection then it starts firing off SQLFreeStmt to unbind and close out then when in the application and it tries to do its thing there is no connection. 558-1af0 ENTER SQLFreeStmt HSTMT 0x020D7548 UWORD 2 <SQL_UNBIND> BMS 558-1af0 EXIT SQLFreeStmt with return code 0 (SQL_SUCCESS) HSTMT 0x020D7548 UWORD 2 <SQL_UNBIND> Then this happens when I try to do something that pulls data 558-1af0 ENTER SQLDriverConnectW HDBC 0x020DDA00 HWND 0x00000000 WCHAR * 0x73EF8634 [ -3] "******\ 0" SWORD -3 WCHAR * 0x73EF8634 SWORD -3 SWORD * 0x00000000 UWORD 0 <SQL_DRIVER_NOPROMPT> BMS 558-1af0 EXIT SQLDriverConnectW with return code -1 (SQL_ERROR) HDBC 0x020DDA00 HWND 0x00000000 WCHAR * 0x73EF8634 [ -3] "******\ 0" SWORD -3 WCHAR * 0x73EF8634 SWORD -3 SWORD * 0x00000000 UWORD 0 <SQL_DRIVER_NOPROMPT> DIAG [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified (0) Nearly all of my searching on this issue comes up with programming issues where the connection string has a problem. The only thing that is different in this particular scenario though is Windows 7, I know the connection string is fine since it works on the XP machines. The VB components are supposed to be still functional under Win7. My computer is running 32 bit win7 and my VP is running Win7 64 bit and both have the same problem so that can be ruled out. I have already tried reinstalling the SQL Native Client and the VB runtime as well as the application in question. Hopefully I can find a solution and not have to resort to using the XP VM.

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• No module named difflib

  - by bugbug

  I want to execute python code from C# with following code. static void Main(string[] args) { ScriptEngine engine = Python.CreateEngine(); ScriptSource source = engine.CreateScriptSourceFromFile(@"F:\Script\extracter.py"); source.Execute(); } I have the problem at line source.Execute(), I got error "No module named difflib". What is wrong in my code? This is my python code (extracter.py). import re import itertools import difflib print "Hello"

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• Restructuting XML Data

  - by Frank

  Hi! The following is an excerpt of my XML data source: <file> <ALL_INSTANCES> <instance> <ID>1</ID> <start>5.8633333333</start> <end>29.8216666667</end> <code>Player 1</code> </instance> <instance> <ID>2</ID> <start>28.4566666667</start> <end>51.1450000000</end> <code>Player 2</code> </instance> <instance> <ID>3</ID> <start>49.8383333333</start> <end>71.1150000000</end> <code>Player 3</code> </instance> <instance> <ID>4</ID> <start>72.9850000000</start> <end>95.3766666667</end> <code>Speler 1</code> </instance> </ALL_INSTANCES> I'm looking to restructure this data into something like this: <Player 1> <ID>1</ID> <start>5.8633333333</start> <end>29.8216666667</end> </Player 1> <Player 1> <ID>4</ID> <start>72.9850000000</start> <end>95.3766666667</end> </Player 1> <Player 2> <ID>2</ID> <start>28.4566666667</start> <end>51.1450000000</end> </Player 2> <Player 3> <ID>3</ID> <start>49.8383333333</start> <end>71.1150000000</end> </Player 3> Could anyone please help me to achieve this? Much appreciated! Cheers, Frank

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• jQuery UI draggable() and resizable()

  - by foxlance

  I want to write the draggable() and resizable() code in such a way that all future elements with a particular class will inherit those plugins without calling them again. $('div.resizeMe').resizable({ containment: 'parent', minWidth: 400, minHeight: 200 }) When the above code is executed, all divs with resizeMe class inherits the resizable() function. But if I appended BODY with a new div with the same class, I needed to execute that code again. So my goal here is how to rewrite that code such that it will work for all and including future elements.

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• After logging out of SSH, screen sessions disappear on Arch Linux

  - by Ivan

  On Arch Linux (I'm on a single dedicated server, where my domain name points to only one IP), when I SSH into a user (say, for example, user mc), and then do screen -S test (or -dmS, the resulting issue is the same), run a command, and then detach from it, then exit out of my SSH session, and log back in, the screen session disappears. screen -ls returns No Sockets found in /run/screens/S-mc. The only way I can reattach to my sessions is if I never logged out of my SSH. How do I fix this? I do have read/write access in /run/screens/S-mc I detach from screen sessions with Ctrl-A,D disown -a && exit gives me the same problem shopt huponexit returns "huponexit off" There is no ~/.logout, and ~/.bash_logout is empty, with 3 lines of comments, telling me it's the ~/.bash_logout file ls -l /usr/bin | grep screen returns lrwxrwxrwx 1 root root 12 Oct 31 2012 screen -> screen-4.0.3 -rwsr-xr-x 1 root root 363672 Oct 31 2012 screen-4.0.3

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• Error while compiling/installing PHP with FPM for RPM on Centos 5.4 x64

  - by Raymond

  Hi, I'm trying to make an RPM with PHP 5.3.1 and PHP-FPM 0.6 for CentOS 5.4. So far it goes quite well, but when rpmbuild gets to the installation phase it fails with the following error: Executing(%install): /bin/sh -e /var/tmp/rpm-tmp.63379 + umask 022 + cd /usr/src/redhat/BUILD + cd /usr/src/redhat/BUILD/php-5.3.1/fpm-build/ + make install Installing PHP SAPI module: fpm Installing PHP CLI binary: /usr/bin/ cp: cannot create regular file `/usr/bin/#INST@12668#': Permission denied make: *** [install-cli] Error 1 error: Bad exit status from /var/tmp/rpm-tmp.63379 (%install) RPM build errors: Bad exit status from /var/tmp/rpm-tmp.63379 (%install) I am running rpmbuild as a normal user, so it's understandable that it will fail to install anything into /usr/bin, but it shouldn't try to install anything outside the buildroot in the first place. I have however specified the BuildRoot in the header of the spec file and I can see it is passed correctly to the make install command. Does anyone have some idea of what is going wrong here? Thanks a lot!

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• Socket in C: recv overwrite a char[]

  - by Possa

  Hi all, I'm trying to make a little client-server script like many others that I've done in the past. But in this one I have a problem. It is better if I post the code and the output it give me. Code: #include <mysql.h> //not important now #include <stdlib.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #include <netdb.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <signal.h> #include <string.h> //constant definition #define SERVER_PORT 2121 #define LINESIZE 21 //global var definition char victim_ip[LINESIZE], file_write[LINESIZE], hacker_ip[LINESIZE]; //function void leggi (int); //not use now for debugging purpose //void scriviDB (); //not important now main () { int sock, client_len, fd; struct sockaddr_in server, client; // transport end point if((sock = socket(AF_INET, SOCK_STREAM, 0)) == -1) { perror("system call socket fail"); exit(1); } server.sin_family = AF_INET; server.sin_addr.s_addr = inet_addr("10.10.10.1"); server.sin_port = htons(SERVER_PORT); // binding address at transport end point if (bind(sock, (struct sockaddr *)&server, sizeof server) == -1) { perror("system call bind fail"); exit(1); } //fprintf(stderr, "Server open: listening.\n"); listen(sock, 5); /* managae client connection */ while (1) { client_len = sizeof(client); if ((fd = accept(sock, (struct sockaddr *)&client, &client_len)) < 0) { perror("accepting connection"); exit(1); } strcpy(hacker_ip, inet_ntoa(client.sin_addr)); printf("1 %s\n", hacker_ip); //debugging purpose //leggi(fd); ////////////////////////// //receive client recv(fd, victim_ip, LINESIZE, 0); victim_ip[sizeof(victim_ip)] = '\0'; printf("2 %s\n", hacker_ip); //debugging purpose recv(fd, file_write, LINESIZE, 0); file_write[sizeof(file_write)] = '\0'; printf("3 %s\n", hacker_ip); //debugging purpose printf("%s@%s for %s\n", file_write, victim_ip, hacker_ip); //send to client send(fd, hacker_ip, 40, 0); //now is hacker_ip for debug ///////////////////////// close(fd); }//end while exit(0); } //end main Client send string: ./send -i 10.10.10.4 -f filename.ext so the script send -i (IP) and -f (FILE) at the server. Here's my output server side: 1 10.10.10.6 2 10.10.10.6 3 [email protected] for As you can see the printf(3) and the printf(ip,file,ip) fail. I don't know how and where but someone overwrite my hacker_ip string. Thanks for your help! :)

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• .Net Dynamically Load DLL

  - by hermiod

  I am trying to write some code that will allow me to dynamically load DLLs into my application, depending on an application setting. The idea is that the database to be accessed is set in the application settings and then this loads the appropriate DLL and assigns it to an instance of an interface for my application to access. This is my code at the moment: Dim SQLDataSource As ICRDataLayer Dim ass As Assembly = Assembly. _ LoadFrom("M:\MyProgs\WebService\DynamicAssemblyLoading\SQLServer\bin\Debug\SQLServer.dll") Dim obj As Object = ass.CreateInstance(GetType(ICRDataLayer).ToString, True) SQLDataSource = DirectCast(obj, ICRDataLayer) MsgBox(SQLDataSource.ModuleName & vbNewLine & SQLDataSource.ModuleDescription) I have my interface (ICRDataLayer) and the SQLServer.dll contains an implementation of this interface. I just want to load the assembly and assign it to the SQLDataSource object. The above code just doesn't work. There are no exceptions thrown, even the Msgbox doesn't appear. I would've expected at least the messagebox appearing with nothing in it, but even this doesn't happen! Is there a way to determine if the loaded assembly implements a specific interface. I tried the below but this also doesn't seem to do anything! For Each loadedType As Type In ass.GetTypes If GetType(ICRDataLayer).IsAssignableFrom(loadedType) Then Dim obj1 As Object = ass.CreateInstance(GetType(ICRDataLayer).ToString, True) SQLDataSource = DirectCast(obj1, ICRDataLayer) End If Next EDIT: New code from Vlad's examples: Module CRDataLayerFactory Sub New() End Sub ' class name is a contract, ' should be the same for all plugins Private Function Create() As ICRDataLayer Return New SQLServer() End Function End Module Above is Module in each DLL, converted from Vlad's C# example. Below is my code to bring in the DLL: Dim SQLDataSource As ICRDataLayer Dim ass As Assembly = Assembly. _ LoadFrom("M:\MyProgs\WebService\DynamicAssemblyLoading\SQLServer\bin\Debug\SQLServer.dll") Dim factory As Object = ass.CreateInstance("CRDataLayerFactory", True) Dim t As Type = factory.GetType Dim method As MethodInfo = t.GetMethod("Create") Dim obj As Object = method.Invoke(factory, Nothing) SQLDataSource = DirectCast(obj, ICRDataLayer) EDIT: Implementation based on Paul Kohler's code Dim file As String For Each file In Directory.GetFiles(baseDir, searchPattern, SearchOption.TopDirectoryOnly) Dim assemblyType As System.Type For Each assemblyType In Assembly.LoadFrom(file).GetTypes Dim s As System.Type() = assemblyType.GetInterfaces For Each ty As System.Type In s If ty.Name.Contains("ICRDataLayer") Then MsgBox(ty.Name) plugin = DirectCast(Activator.CreateInstance(assemblyType), ICRDataLayer) MessageBox.Show(plugin.ModuleName) End If Next I get the following error with this code: Unable to cast object of type 'SQLServer.CRDataSource.SQLServer' to type 'DynamicAssemblyLoading.ICRDataLayer'. The actual DLL is in a different project called SQLServer in the same solution as my implementation code. CRDataSource is a namespace and SQLServer is the actual class name of the DLL. The SQLServer class implements ICRDataLayer, so I don't understand why it wouldn't be able to cast it. Is the naming significant here, I wouldn't have thought it would be.

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• Invoke Python modules from Java

  - by user36813

  I have a Python interface of a graph library written in C - igraph (the name of library). My need is to invoke the python modules pertaining to this graph library from Java code. It goes like this, the core of library is in c. This core has been imported into Python and interfaces to the functions embedded in core are available in Python. My project's rest of the code is in Java and hence I would like to call the graph functions by Java as well. Jython - which lets you invoke python modules with in Java was an option.I went on trying Jython to discover that it will not work in my case as the core code is in C and Jython wont support anything that is imported as a c dll in python code.I also thought of opting for the approach of calling graph routines directly in c. That is without passing through Python code. I am assuming there must be something which lets you call c code from Java, how ever I am not good in C hence I did not go for it. My last resort seems to execute Python interpreter from command line using Java. But that is a dirty and shameless. Also to deal with the results produced by Python code I will have to write the results in a file and read it back in java. Again dirty way. Is there something that any one can suggest me? Thanks to every one giving time. Thanks Igal for answering. I had a look at it. At first glance it appears as if it is simply calling the python script. Jep jep = new Jep(false, SCRIPT_PATH, cl); jep.set("query", query); jep.runScript(SCRIPT_PATH + file); jep.close(); Isnt it very similar to what we would do if called the python interpreter from command line through a Java code. Runtime runtime = Runtime.getRuntime(); Process proc = runtime.exec("python test.py"); Concern is how do I use the results generated by Python script. The naive way is to write them to file and read it back in Java. I am searching for a smarter approach.Thanks for suggestion anyway.

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• hide javascript in php

  - by raja

  hi all i am working on a project, it need email validation when user enter his email address check for availiblity. i wrote the php code in javascript it works fine but my problem is when some see my page source it display all user email address in javascript code. i want hide this one. i wrote javascript code in seperate file but validation is not working. if any one hide how hide javascript code in php, guide me plzz. thanks

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• Is -1 a magic number? An anti-pattern? A code smell? Quotes and guidelines from authorities

  - by polygenelubricants

  I've seen -1 used in various APIs, most commonly when searching into a "collection" with zero-based indices, usually to indicate the "not found" index. This "works" because -1 is never a legal index to begin with. It seems that any negative number should work, but I think -1 is almost always used, as some sort of (unwritten?) convention. I would like to limit the scope to Java at least for now. My questions are: What are the official words from Sun regarding using -1 as a "special" return value like this? What quotes are there regarding this issue, from e.g. James Gosling, Josh Bloch, or even other authoritative figures outside of Java? What were some of the notable discussions regarding this issue in the past?

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• How to make Microsoft Keyboard special keys run osascript commands on OSX?

  - by t-a-w

  I'm trying to make (1) special key open new terminal window. I bound it to file /Users/taw/bin/new_term, which contains: #!/bin/sh exec osascript -e 'tell application "Terminal" to do script "cd ."' This does the trick, except it also opens a Terminal window with this (even though Terminal.app is configured to always close windows when processes finish): Last login: Thu Mar 11 19:41:29 on ttys000 /Users/taw/bin/new_term ; exit; ~$ /Users/taw/bin/new_term ; exit; tab 1 logout [Process completed] How do I make it all work correctly? (possibly using a way different that what I've been attempting so far)

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• How to select visibility of specific worksheet at the opening of Excel using Spreadsheet XML

  - by user211607

  Hi, I am getting spreadsheet xml from a code logic (Flex Grids to spreadsheet xml). I have 3 worksheets (A, B, C) in that spreadsheet xml. I am opening this spreadsheet xml in Excel. I want to view worksheet B when I am opening the spreadhseet xml in Excel. Is there any tag/code, I need to add so that worksheet B will be visible at initial? I can add that code in code logic Thanks ... Atul

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• What is a good platform for building a game framework targetting both web and native languages?

  - by fuzzyTew

  I would like to develop (or find, if one is already in development) a framework with support for accelerated graphics and sound built on a system flexible enough to compile to the following: native ppc/x86/x86_64/arm binaries or a language which compiles to them javascript actionscript bytecode or a language which compiles to it (actionscript 3, haxe) optionally java I imagine, for example, creating an API where I can open windows and make OpenGL-like calls and the framework maps this in a relatively efficient manner to either WebGL with a canvas object, 3d graphics in Flash, OpenGL ES 2 with EGL, or desktop OpenGL in an X11, Windows, or Cocoa window. I have so far looked into these avenues: Building the game library in haXe Pros: Targets exist for php, javascript, actionscript bytecode, c++ High level, object oriented language Cons: No support for finally{} blocks or destructors, making resource cleanup difficult C++ target does not allow room for producing highly optimized libraries -- the foreign function interface requires all primitive types be boxed in a wrapper object, as if writing bindings for a scripting language; these feel unideal for real-time graphics and audio, especially exporting low-level functions. Doesn't seem quite yet mature Using the C preprocessor to create a translator, writing programs entirely with macros Pros: CPP is widespread and simple to use Cons: This is an arduous task and probably the wrong tool for the job CPP implementations differ widely in support for features (e.g. xcode cpp has no variadic macros despite claiming C99 compliance) There is little-to-no room for optimization in this route Using llvm's support for multiple backends to target c/c++ to web languages Pros: Can code in c/c++ LLVM is a very mature highly optimizing compiler performing e.g. global inlining Targets exist for actionscript (alchemy) and javascript (emscripten) Cons: Actionscript target is closed source, unmaintained, and buggy. Javascript targets do not use features of HTML5 for appropriate optimization (e.g. linear memory with typed arrays) and are immature An LLVM target must convert from low-level bytecode, so high-level constructs are lost and bloated unreadable code is created from translating individual instructions, which may be more difficult for an unprepared JIT to optimize. "jump" instructions cause problems for languages with no "goto" statements. Using libclang to write a translator from C/C++ to web languages Pros: A beautiful parsing library providing easy access to the code structure Can code in C/C++ Has sponsored developer effort from Apple Cons: Incomplete; current feature set targets IDEs. Basic operators are unexposed and must be manually parsed from the returned AST element to be identified. Translating code prior to compilation may forgo optimizations assumed in c/c++ such as inlining. Creating new code generators for clang to translate into web languages Pros: Can code in C/C++ as libclang Cons: There is no API; code structure is unstable A much larger job than using libclang; the innards of clang are complex Building the game library in Common Lisp Pros: Flexible, ancient, well-developed language Extensive introspection should ease writing translators Translators exist for at least javascript Cons: Unfamiliar language No standardized library functions, widely varying implementations Which of these avenues should I pursue? Do you know of any others, or any systems that might be useful? Does a general project like this exist somewhere already? Thank you for any input.

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• Consolidating coding styles: Funcs, private method, single method classes

  - by jdoig

  Hi all, We currently have 3 devs with, some, conflicting styles and I'm looking for a way to bring peace to the kingdom... The Coders: Foo 1: Likes to use Func's & Action's inside public methods. He uses actions to alias off lengthy method calls and Func's to perform simple tasks that can be expressed in 1 or 2 lines and will be used frequently through out the code Pros: The main body of his code is succinct and very readable, often with only one or 2 public methods per class and rarely any private methods. Cons: The start of methods contain blocks of lambda rich code that other developers don't enjoy reading; and, on occasion, can contain higher order functions that other dev's REALLY don't like reading. Foo 2: Likes to create a private method for (almost) everything the public method will have to do . Pros: Public methods remain small and readable (to all developers). Cons: Private methods are numerous. With private methods that call into other private methods, that call into... etc, etc. Making code hard to navigate. Foo 3: Likes to create a public class with a, single, public method for every, non-trivial, task that needs performing, then dependency inject them into other objects. Pros: Easily testable, easy to understand (one object, one responsibility). Cons: project gets littered by classes, opening multiple class files to understand what code does makes navigation awkward. It would be great to take the best of all these techniques... Foo-1 Has really nice, readable (almost dsl-like) code... for the most part, except for all the Action and Func lambda shenanigans bulked together at the start of a method. Foo-3 Has highly testable and extensible code that just feels a bit "belt-&-braces" for some solutions and has some code-navigation niggles (constantly hitting F12 in VS and opening 5 other .cs files to find out what a single method does). And Foo-2... Well I'm not sure I like anything about the one-huge .cs file with 2 public methods and 12 private ones, except for the fact it's easier for juniors to dig into. I admit I grossly over-simplified the explanations of those coding styles; but if any one knows of any patterns, practices or diplomatic-manoeuvres that can help unite our three developers (without just telling any of them to just "stop it!") that would be great. From a feasibility standpoint : Foo-1's style meets with the most resistance due to some developers finding lambda and/or Func's hard to read. Foo-2's style meets with a less resistance as it's just so easy to fall into. Foo-3's style requires the most forward thinking and is difficult to enforce when time is short. Any ideas on some coding styles or conventions that can make this work?

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• In-line assembly

  - by aCuria

  For the below code, if i want to convert the for loop to in-line assembly, how would it be done? (Pardon the weird code, i just made it up.) 1) This is for the x86, using visual studio 2) This is a "how to use in line assembly" question, not a "how to optimize this code" question 3) Any other example will be fine. I will think of some better example code in abit.

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• Installing mod_xsendfile on MAMP

  - by mail4alberto

  Hello, I'm having trouble installing mod_xsendfile on MAMP. I've used some sources to try to help me install it: http://iprog.com/posting/2008/04/compiling_mod_xsendfile_for_mac_os_x http://groups.google.com/group/phusion-passenger/browse_thread/thread/e6dac9d5ea0de9c1 I ended up installing apache20 via macports and used apsx command to create the module and then copy it into MAMP's modules folder. I was able to seem to load the module at least. But then I get this error in my apache logs: [Thu May 27 19:08:28 2010] [notice] child pid 68606 exit signal Bus error (10) [Thu May 27 19:08:41 2010] [notice] child pid 68607 exit signal Bus error (10) Can anyone help me out? :S

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• Does jQuery or JavaScript have the concept of classes and objects?

  - by Prashant

  I found the following code somewhere, but I am not understanding the code properly. ArticleVote.submitVote('no');return false; Is ArticleVote a class and submitVote() a function of that class? Or what does the above code mean? And is there any concept of classes and objects in jQuery or in traditional JavaScript? How to create them? Please share some reference links or code.

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• How to specify this 'symbolic link' for the Jungo WinDriver?

  - by user252098

  Just now , I try to install the Jungo WinDriver in the Ubuntu 13.10 . But I am puzzled by the its manual : 4.2.3. Linux WinDriver Installation Instructions 4.2.3.1. Preparing the System for Installation In Linux, kernel modules must be compiled with the same header files that the kernel itself was compiled with. Since WinDriver installs kernel modules, it must compile with the header files of the Linux kernel during the installation process. Therefore, before you install WinDriver for Linux, verify that the Linux source code and the file version.h are installed on your machine: Install the Linux kernel source code: If you have yet to install Linux, install it, including the kernel source code, by following the instructions for your Linux distribution. If Linux is already installed on your machine, check whether the Linux source code was installed. You can do this by looking for 'linux' in the /usr/src directory. If the source code is not installed, either install it, or reinstall Linux with the source code, by following the instructions for your Linux distribution. Install version.h: The file version.h is created when you first compile the Linux kernel source code. Some distributions provide a compiled kernel without the file version.h. Look under /usr/src/linux/include/linux to see whether you have this file. If you do not, follow these steps: Become super user: $ su Change directory to the Linux source directory: cd /usr/src/linux Type: make xconfig Save the configuration by choosing Save and Exit. Type: make dep Exit super user mode: exit To run GUI WinDriver applications (e.g., DriverWizard [5]; Debug Monitor [7.2]) you must also have version 5.0 of the libstdc++ library — libstdc++.so.5. If you do not have this file, install it from the relevant RPM in your Linux distribution (e.g., compat-libstdc++). Before proceeding with the installation, you must also make sure that you have a linux symbolic link. If you do not, create one by typing /usr/src$ ln -s 'target kernel'/linux For example, for the Linux 2.4 kernel type /usr/src$ ln -s linux-2.4/ linux ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I can't understand how to specify these two parameters in my Ubuntu .

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• Jquery $.post and PHP - Prevent the ability to use script outside of main website.

  - by Tim

  I have a PHP script setup using Jquery $.post which would return a response or do an action within the targeted .php file within $.post. Eg. My page has a form where you type in your Name. Once you hit the submit form button, $.post is called and sends the entered Name field value into "mywebsite.xyz/folder/ajaxscript.php" If a user was to visit "mywebsite.xyz/folder/ajaxscript.php" directly and somehow POST the data to the script, the script would return a response / do an action, based on the submitted POST data. The problem is, I don't want others to be able to periodically "call" an action or request a response from my website without using the website directly. Theoretically, right now you could determine what Name values my website allows without even visiting it, or you could call an action without going through the website, by simply visiting "mywebsite.xyz/folder/ajaxscript.php" So, what measures can I take to prevent this from happening? So far my idea is to ensure that it is a $_POST and not a $_GET - so they cannot manually enter it into the browser, but they could still post data to the script... Another measure is to apply a session key that expires, and is only valid for X amount of visits until they revisit the website. ~ Or, just have a daily "code" that changes and they'd need to grab this code from the website each day to keep their direct access to the script working (eg. I pass the daily "code" into each post request. I then check that code matches in the ajax php script.) However, even with these meaures, they will STILL have access to the scripts so long as they know how to POST the data, and also get the new code each day. Also, having a daily code requirement will cause issues when visiting the site at midnight (12:00am) as the code will change and the script will break for someone who is on the website trying to call the script, with the invalid code being passed still. I have attempted using .htaccess however using: order allow,deny deny from all Prevents legitimate access, and I'd have to add an exception so the website's IP is allowed to access it.. which is a hassle to update I think. Although, if it's the only legitimate solution I guess I'll have to. If I need to be more clear please let me know.

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• Need some constructive criticism on my SSE/Assembly attempt

  - by Brett

  Hello, I'm working on converting a bit of code to SSE, and while I have the correct output it turns out to be slower than standard c++ code. The bit of code that I need to do this for is: float ox = p2x - (px * c - py * s)*m; float oy = p2y - (px * s - py * c)*m; What I've got for SSE code is: void assemblycalc(vector4 &p, vector4 &sc, float &m, vector4 &xy) { vector4 r; __m128 scale = _mm_set1_ps(m); __asm { mov eax, p //Load into CPU reg mov ebx, sc movups xmm0, [eax] //move vectors to SSE regs movups xmm1, [ebx] mulps xmm0, xmm1 //Multiply the Elements movaps xmm2, xmm0 //make a copy of the array shufps xmm2, xmm0, 0x1B //shuffle the array subps xmm0, xmm2 //subtract the elements mulps xmm0, scale //multiply the vector by the scale mov ecx, xy //load the variable into cpu reg movups xmm3, [ecx] //move the vector to the SSE regs subps xmm3, xmm0 //subtract xmm3 - xmm0 movups [r], xmm3 //Save the retun vector, and use elements 0 and 3 } } Since its very difficult to read the code, I'll explain what I did: loaded vector4 , xmm0 _ p = [px , py , px , py ] mult. by vector4, xmm1 _ cs = [c , c , s , s ] _____________mult---------------------------- result,______ xmm0 = [px*c, py*c, px*s, py*s] reuse result, xmm0 = [px*c, py*c, px*s, py*s] shuffle result, xmm2 = [py*s, px*s, py*c, px*c] ___________subtract---------------------------- result, xmm0 = [px*c-py*s, py*c-px*s, px*s-py*c, py*s-px*c] reuse result, xmm0 = [px*c-py*s, py*c-px*s, px*s-py*c, py*s-px*c] load m vector4, scale = [m, m, m, m] ______________mult---------------------------- result, xmm0 = [(px*c-py*s)*m, (py*c-px*s)*m, (px*s-py*c)*m, (py*s-px*c)*m] load xy vector4, xmm3 = [p2x, p2x, p2y, p2y] reuse, xmm0 = [(px*c-py*s)*m, (py*c-px*s)*m, (px*s-py*c)*m, (py*s-px*c)*m] ___________subtract---------------------------- result, xmm3 = [p2x-(px*c-py*s)*m, p2x-(py*c-px*s)*m, p2y-(px*s-py*c)*m, p2y-(py*s-px*c)*m] then ox = xmm3[0] and oy = xmm3[3], so I essentially don't use xmm3[1] or xmm3[4] I apologize for the difficulty reading this, but I'm hoping someone might be able to provide some guidance for me, as the standard c++ code runs in 0.001444ms and the SSE code runs in 0.00198ms. Let me know if there is anything I can do to further explain/clean this up a bit. The reason I'm trying to use SSE is because I run this calculation millions of times, and it is a part of what is slowing down my current code. Thanks in advance for any help! Brett

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• Is there an equivalent of SU for Windows

  - by CodeSlave

  Is there a way (when logged in as an administrator, or as a member of the administrators group) to masquerade as a non-privileged user? Especially in an AD environment. e.g., in the Unix world I could do the following (as root): # whoami root # su johnsmith johnsmith> whoami johnsmith johnsmith> exit # exit I need to test/configure something on a user's account, and I don't want to have to know their password or have to reset it. Edit: runas won't cut it. Ideally, my whole desktop would become the user's, etc. and not just in a cmd window.

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• Why does PsExec hang after successfully running a powershell script?

  - by Matt

  The script is fairly straight forward. Simply tries to start a bunch of windows services. Execution locally works fine when on the target machine. The script is actually executing fine as well when done via PsExec, it just never returns until I hit the "enter" key on my CMD prompt. This is a problem, because this is being called from TeamCity, and it makes the Agent hang waiting for PsExec to return. I've tried the following: Adding an exit and exit 0 at the end of the Powershell script Adding a < NUL to the end of the PsExec call, per the answer in this SF question Adding a > stdout redirect This is how I am actually calling psexec: psexec \\target -u domain\username -p password powershell c:\path\script.ps1 No matter what I do, it hangs until I the locally on the cmd prompt. After I hit enter, I get the message: powershell exited on target with error code 0.

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• Can't kill process TGitCache.exe

  - by ProfKaos

  Sometimes, I suspect when I open a music folder during the right moon phase and during a leap microsecond, this process crashes and pops up an error reporting dialogue. I decline to report the error, because that also fails by now, and choose Exit. Exit just delays the re-appearance of the error reporting dialogue for about 2 seconds. If I try and kill the process using SysInternals' Process Explorer the process is just restarted, only to crash again. So, I'm pretty sure another process, probably a service because TGitCache doesn't have a parent process and no other Git processes are visible, is keeping tabs on this process and restarting it if it dies. This is cruel and inhuman, but how can I find which nanny process is prolonging the agony?

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• What is the best IDE to use with the Symfony framework?

  - by Failpunk

  I'm looking for an IDE with use with the Symfony Framework. I have a bit of experience using the NetBeans 6.5 IDE but it does not always seem to complete the class methods, plus it doesn't seem to have any PHP code snippets built in. Here are the features I would ideally like to have, in order of importance, from an IDE: Code completion of all the Symfony and Propel class methods (I can never remember them) Code templates,(class skeletons, HTML structures, Symfony templates?) Straight-forward code debugging Source Control

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