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  • Rails-like console for PHP?

    - by Chad Johnson
    Every so often, things work in my local PHP development environment, while in my test environment on my server, things do not. It's a nightmare to debug this. If I had a console like Rails provides, debugging would be much much simpler. Is there anything like the Rails console but for PHP? I should mention that I am using a home-brewn PHP application.

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  • Where can I get Mdbg?

    - by Geo
    I'd like to be able to debug .net code using Mdbg. Is there any way of getting it besides installing Visual Studio ( assuming this is a valid way of obtaining ) ?

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  • How can I enable a debugging mode via a command-line switch for my Perl program?

    - by Michael Mao
    I am learning Perl in a "head-first" manner. I am absolutely a newbie in this language: I am trying to have a debug_mode switch from CLI which can be used to control how my script works, by switching certain subroutines "on and off". And below is what I've got so far: #!/usr/bin/perl -s -w # purpose : make subroutine execution optional, # which is depending on a CLI switch flag use strict; use warnings; use constant DEBUG_VERBOSE => "v"; use constant DEBUG_SUPPRESS_ERROR_MSGS => "s"; use constant DEBUG_IGNORE_VALIDATION => "i"; use constant DEBUG_SETPPING_COMPUTATION => "c"; our ($debug_mode); mainMethod(); sub mainMethod # () { if(!$debug_mode) { print "debug_mode is OFF\n"; } elsif($debug_mode) { print "debug_mode is ON\n"; } else { print "OMG!\n"; exit -1; } checkArgv(); printErrorMsg("Error_Code_123", "Parsing Error at..."); verbose(); } sub checkArgv #() { print ("Number of ARGV : ".(1 + $#ARGV)."\n"); } sub printErrorMsg # ($error_code, $error_msg, ..) { if(defined($debug_mode) && !($debug_mode =~ DEBUG_SUPPRESS_ERROR_MSGS)) { print "You can only see me if -debug_mode is NOT set". " to DEBUG_SUPPRESS_ERROR_MSGS\n"; die("terminated prematurely...\n") and exit -1; } } sub verbose # () { if(defined($debug_mode) && ($debug_mode =~ DEBUG_VERBOSE)) { print "Blah blah blah...\n"; } } So far as I can tell, at least it works...: the -debug_mode switch doesn't interfere with normal ARGV the following commandlines work: ./optional.pl ./optional.pl -debug_mode ./optional.pl -debug_mode=v ./optional.pl -debug_mode=s However, I am puzzled when multiple debug_modes are "mixed", such as: ./optional.pl -debug_mode=sv ./optional.pl -debug_mode=vs I don't understand why the above lines of code "magically works". I see both of the "DEBUG_VERBOS" and "DEBUG_SUPPRESS_ERROR_MSGS" apply to the script, which is fine in this case. However, if there are some "conflicting" debug modes, I am not sure how to set the "precedence of debug_modes"? Also, I am not certain if my approach is good enough to Perlists and I hope I am getting my feet in the right direction. One biggest problem is that I now put if statements inside most of my subroutines for controlling their behavior under different modes. Is this okay? Is there a more elegant way? I know there must be a debug module from CPAN or elsewhere, but I want a real minimal solution that doesn't depend on any other module than the "default". And I cannot have any control on the environment where this script will be executed...

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  • how to debug a WCF service once it's out of dev env

    - by ffc
    hi, I have a WCF service that i've been able to communicate with fine while it's hosted locally. I have it deployed to a web server in IIS now, and I can get the wsdl file without error by navigating to http://site.com:8000/service/servicename.svc?wsdl in trying to test this, i've created a console app and was able to successfully add a service reference to this. But when I try to run a Get() method on the service reference, it just hangs with no response. How can I begin to debug this? Thanks!

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  • How to debug PHP with netbeans and Xdebug

    - by Jon Winstanley
    I have recently tried to get going with Netbeans 6.5 after it rated so highly in the IDE review by Smashing magazine. http://www.smashingmagazine.com/2009/02/11/the-big-php-ides-test-why-use-oneand-which-to-choose/ My main reason for switching from Notepad++ is that I'd like to be able to debug my code and set through it. I have followed the instructions about how to install xdebug from both the vendor http://xdebug.org/ and the netbeans web site. http://www.netbeans.org/kb/docs/php/debugging.html#gettingReady but to no avail. How is it done, has anyone else got debugging working in netbeans? (My setup is: Windows XP, Wamp server 2.0, PHP 5, Netbeans 6.5.1)

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  • cannot use Debug with old Xcode 3.1

    - by OhHenry
    I have a mac os x application, which was developed in Xcode 3.3.1, now I need to re-develop it. Of course, I cannot build it in the newest Xcode 4.5, and it's hard for me to change the settings to make it work in Xcode 4.5. So I downloaded the Xcode 3.3.1, it builds ok. But I just cannot use the debugging. The nslog can display normally in the console. I need to debug. Anyone know how to fix it?

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  • Trying to understand crash log output

    - by John Smith
    I'm trying to understand debug output from a crash log. I have the following line from the crashlog: 22 FG 0x00022b94 0x1000 + 138132 I understand how to use atos on 0x00022b94 to get the source code location. What I would like to know is why the crash log helpfully splits that number into 0x1000 + 138132? I have googled and the googles failed me.

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  • How to skip a statement in Eclipse during debugging

    - by frankfwl
    Is it possible to skip a statement in Eclipse while debugging? Suppose the process stopped at breakpoint and I want to skip the breakpoint line ( or maybe a few lines below), can I do it? On the debug tab, it only has "Step into", "Step over" and "Step return" buttons. I did google around but couldn't find anything, hopefully I can find an answer here.

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  • How to run dubug file on another computer

    - by Pazzy
    I have a debug .exe file that i want to run on other machines that don't have MS Visual Studio 2008 installed on them. How can this be done? The release option doesn't work as the application does not function correctly when build in release (not sure why). At the moment I'm getting a message saying "This application has failed to start because the application configuration is incorrect". An ideas? Cheers.

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  • debug assertion fail

    - by Kolt
    I have a program that runs correctly if I start it manually. However, if I try to add a registry key to start it automatically during startup, I get this error: Debug assertion failed (str!=null) fprintf.c line:55 I tried to add Sleep(20000) before anything hapens, but same error. here`s the code: main() { FILE* filetowrite; filetowrite = fopen("textfile.txt", "a+"); writefunction(filetowrite); } int writefunction(FILE* filetowrite) { fprintf(filetowrite, "%s", "\n\n"); ... } I also tried with passing filename as char* and opening it in wrtiefunction(), but same error.

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  • Useful Tips for BizTalk 2006 to BizTalk 2009 Porting

    - by Arvind Chaudhary
    BizTalk projects require some manual intervention in order to upgrade them. Execute the following steps to port a BizTalk solution / project: Open the project’s solution file (.sln) using a text editor – NotePad++ is recommended. Remove all the contents (in red below) between (not including) the following elements: GlobalSection(ProjectConfigurationPlatforms) = postSolution           {5C48CB6B-AE6F-4288-A8EE-46E352BB730C}.Debug|.NET.ActiveCfg = Debug|Any CPU           {5C48CB6B-AE6F-4288-A8EE-46E352BB730C}.Debug|.NET.Build.0 = Debug|Any CPU           {5C48CB6B-AE6F-4288-A8EE-46E352BB730C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU           {5C48CB6B-AE6F-4288-A8EE-46E352BB730C}.Debug|Any CPU.Build.0 = Debug|Any CPU           … EndGlobalSection           You should see the following once you have removed the contents:      GlobalSection(ProjectConfigurationPlatforms) = postSolution                EndGlobalSection            Note: There should not be any   For each BizTalk project (.btproj) in the solution (.sln) find and replace the following in the .btproj file: ‘Name = “Debug”’ with ‘Name = “Development”’ ‘Name = “Release”’ with ‘Name = “Deployment”’ “bin\Debug” with “bin\Development” “bin\Release” with “bin\Deployment” Save the file.

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  • Ubuntu 12.04 LTS installation problem

    - by Zxy
    I am trying to install Ubuntu 12.04 LTS on my PC using WUBI. However, I keep getting this error: An error occured: *Error executing command >>command=C:\\System32\bcdedit.exe /set {2708afc0-9ffa-11e1-bc51-d167219ffa25} device partition=E: >>retval=1 >>stderr=An error has occured setting the element data. The request is not supported. >>stdout= For more information, please see the logfile:* Logfile: 06-11 10:57 DEBUG TaskList: ## Finished choose_disk_sizes 06-11 10:57 DEBUG TaskList: ## Running expand_diskimage... 06-11 10:59 DEBUG TaskList: ## Finished expand_diskimage 06-11 10:59 DEBUG TaskList: ## Running create_swap_diskimage... 06-11 10:59 DEBUG TaskList: ## Finished create_swap_diskimage 06-11 10:59 DEBUG TaskList: ## Running modify_bootloader... 06-11 10:59 DEBUG TaskList: New task modify_bcd 06-11 10:59 DEBUG TaskList: ### Running modify_bcd... 06-11 10:59 DEBUG WindowsBackend: modify_bcd Drive(C: hd 51255.1171875 mb free ntfs) 06-11 10:59 ERROR TaskList: Error executing command >>command=C:\Windows\System32\bcdedit.exe /set {2708afc0-9ffa-11e1-bc51-d167219ffa25} device partition=E: >>retval=1 >>stderr=An error has occurred setting the element data. The request is not supported. >>stdout= Traceback (most recent call last): File "\lib\wubi\backends\common\tasklist.py", line 197, in __call__ File "\lib\wubi\backends\win32\backend.py", line 697, in modify_bcd File "\lib\wubi\backends\common\utils.py", line 66, in run_command Exception: Error executing command >>command=C:\Windows\System32\bcdedit.exe /set {2708afc0-9ffa-11e1-bc51-d167219ffa25} device partition=E: >>retval=1 >>stderr=An error has occurred setting the element data. The request is not supported. >>stdout= 06-11 10:59 DEBUG TaskList: # Cancelling tasklist 06-11 10:59 DEBUG TaskList: New task modify_bcd 06-11 10:59 ERROR root: Error executing command >>command=C:\Windows\System32\bcdedit.exe /set {2708afc0-9ffa-11e1-bc51-d167219ffa25} device partition=E: >>retval=1 >>stderr=An error has occurred setting the element data. The request is not supported. >>stdout= Traceback (most recent call last): File "\lib\wubi\application.py", line 58, in run File "\lib\wubi\application.py", line 132, in select_task File "\lib\wubi\application.py", line 158, in run_installer File "\lib\wubi\backends\common\tasklist.py", line 197, in __call__ File "\lib\wubi\backends\win32\backend.py", line 697, in modify_bcd File "\lib\wubi\backends\common\utils.py", line 66, in run_command Exception: Error executing command >>command=C:\Windows\System32\bcdedit.exe /set {2708afc0-9ffa-11e1-bc51-d167219ffa25} device partition=E: >>retval=1 >>stderr=An error has occurred setting the element data. The request is not supported. >>stdout= 06-11 10:59 DEBUG TaskList: New task modify_bcd 06-11 10:59 DEBUG TaskList: New task modify_bcd 06-11 10:59 DEBUG TaskList: ## Finished modify_bootloader 06-11 10:59 DEBUG TaskList: # Finished tasklist*

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  • Rendez vous des Experts : Introduction à Ruby On Rails, une émission avec Developpez.com pour tout savoir sur le framework Web

    Rendez vous des Experts : Introduction à Ruby On Rails Une émission en partenariat avec Developpez.com pour tout savoir sur le framework Web Ruby On Rails n'est pas spécialement la technologie Web la plus connue. Pour faire simple, « Ruby » est le langage et « On Rails » est le framework qui vient s'y ajouter pour l'adapter aux développements Web. Le résultat est un outil assez récent (Ruby est en version 1.9.2, Rails quant à lui approche la version 3.1), interprété (et non pas compilé), utilisable aussi bien sur des EDI comme Eclispe ou Netbeans que dans un simple éditeur de texte. Le Rendez-vous des Experts et Julien Dollon , avec lesquels D...

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  • NetBeans arrête le support du module Ruby on Rails et concentre ses efforts sur l'intégration de Java SE 7

    NetBeans arrête le support du module Ruby on Rails Et concentre ses efforts sur l'intégration de Java SE 7 NetBeans 7.0, actuellement en bêta et prévu en version définitive pour avril, n'offrira plus de module pour Ruby on Rails. En cause, la faible utilisation de l'IDE d'Oracle par les développeurs Rails et la volonté de l'équipe du projet de se concentrer sur une meilleure intégration de Java 7. La décision est assez peu surprenante. Les développeurs Ruby ont généralement un penchant pour des IDE ...

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  • IronRuby 1.0 et IronPython 2.6.1, les implémentations de Ruby et de Python pour .NET sont disponible

    IronRuby 1.0 et IronPython 2.6.1 Les implémentations de Ruby et de Python pour .NET sont disponibles L'univers de .NET s'enrichit encore un peu plus avec l'arrivée de IronRuby 1.0. Comme l'explique très bien Thibaut Barrère sur son blog Développez, « IronRuby, c'est tout simplement ?Ruby pour .Net? » ou plus exactement « une implémentation de Ruby s'appuyant sur le runtime .Net. Le but affiché de ce projet est de fournir une implémentation de qualité, compatible Ruby 1.8.x, tout en permettant un bon niveau d'inter-opérabilité avec les librairies .Net ». Longtemps en projet, IronRuby 1.0 vient donc de sortir officiellement aujourd'hui en deux versions différent...

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  • MacVim, Command-T: SEGV

    - by Ramon Tayag
    Details: OSX 10.7.4 I installed the latest MacVim via Homebrew: $ command-t brew install macvim ==> Downloading https://github.com/b4winckler/macvim/tarball/snapshot-64 Already downloaded: /Library/Caches/Homebrew/macvim-7.3-64.tgz ==> ./configure --with-features=huge --with-tlib=ncurses --enable-multibyte --with-macarchs=x86_64 --enable-perlinterp --enable-pythoninterp --enable-rubyinterp --enable-t ==> make getenvy ==> make ==> Caveats MacVim.app installed to: /usr/local/Cellar/macvim/7.3-64 To link the application to a normal Mac OS X location: brew linkapps or: ln -s /usr/local/Cellar/macvim/7.3-64/MacVim.app /Applications ==> Summary /usr/local/Cellar/macvim/7.3-64: 1733 files, 27M, built in 53 seconds $ command-t brew linkapps Linking /usr/local/Cellar/macvim/7.3-64/MacVim.app Finished linking. Find the links under ~/Applications. $ command-t ruby -v ruby 1.8.7 (2011-12-28 patchlevel 357) [universal-darwin11.0] $ command-t rvm list rvm rubies ree-1.8.7-2012.02 [ i686 ] ruby-1.8.7-p358 [ i686 ] ruby-1.9.2-p290 [ x86_64 ] ruby-1.9.2-p320 [ x86_64 ] ruby-1.9.3-p194 [ x86_64 ] # Default ruby not set. Try 'rvm alias create default <ruby>'. # => - current # =* - current && default # * - default $ command-t cd ~/.vim/bundle/vim-command-t/ruby/command-t ruby extconf.rb $ command-t ruby extconf.rb checking for ruby.h... yes creating Makefile $ command-t make cc -arch i386 -arch x86_64 -pipe -bundle -undefined dynamic_lookup -o ext.bundle ext.o match.o matcher.o -L. -L/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib -L. -arch i386 -arch x86_64 -lruby -lpthread -ldl -lobjc ld: warning: ignoring file ext.o, file was built for unsupported file format which is not the architecture being linked (i386) ld: warning: ignoring file match.o, file was built for unsupported file format which is not the architecture being linked (i386) ld: warning: ignoring file matcher.o, file was built for unsupported file format which is not the architecture being linked (i386) $ command-t mvim MacVim then opens here. But when I open Command-T, MacVim crashes and I see this in the command line: $ command-t dyld: lazy symbol binding failed: Symbol not found: _rb_intern2 Referenced from: /Users/ramon/.vim/bundle/vim-command-t/ruby/command-t/ext.bundle Expected in: flat namespace dyld: Symbol not found: _rb_intern2 Referenced from: /Users/ramon/.vim/bundle/vim-command-t/ruby/command-t/ext.bundle Expected in: flat namespace Vim: Caught deadly signal TRAP Vim: Finished. The problem I have is very similar to this, except that I switched to the system Ruby and still got the error.

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  • java equivalent of ruby's ||= syntax

    - by brad
    I'm brand new to java, coming from a ruby world. One thing I love about ruby is the very terse syntax such as ||=. I realize of course that a compiled language is different, but I'm wondering if Java has anything similar. In particular, what I do all the time in ruby is something like: someVar ||= SomeClass.new I think this is incredibly terse, yet powerful, but thus far the only method I can think of to achieve the same thing is a very verbose: if(someVar == null){ someVar = new SomeClass() } Just trying to improve my Java-fu and syntax is certainly one area that I'm no pro.

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  • Writing a simple webservice in C# and calling it from Ruby on Rails

    - by hopeless
    I need to create a simple webservice in C# but I'm not sure where to start (I've coded UI apps in C# before but all my web experience is in Ruby on Rails). Where do I start? The only client for the webservice will be a Ruby on Rails app so there's no need for any HTML rendering. I was thinking of just returning a XML or YAML formatted string unless there's an easier way. I'm not too keen on SOAP but if it's easy/natural in C# & Ruby then I'd consider it (or anything else).

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  • Debugging Silverlight crash

    - by RHLopez
    I am trying to debug an IE 8 crash caused by a Silverlight application. I managed to find some articles on how to do a memory dump when a process crashes. I loaded the dump in windbg and ran !analyze -v. Below is the result. I am stuck at what further steps I can take to figure out what module or library that is running in Silverlight is causing the crash. So all I have right now is the crash in IE is caused by an Access violation (attempt to execute non-executable address) and from what is in the stack trace that some animation is running in Silverlight. Any tips or articles that would help me debug this will be appreciated. This dump file has an exception of interest stored in it. The stored exception information can be accessed via .ecxr. (1864.1560): Access violation - code c0000005 (first/second chance not available) eax=00000000 ebx=00000000 ecx=1b11fc58 edx=5c6f007d esi=00000000 edi=193b8e08 eip=00000000 esp=0f61f750 ebp=0f61f76c iopl=0 nv up ei pl nz na pe nc cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010206 00000000 ?? ??? FAULTING_IP: +56b3952f04ebde68 748bc9f1 654c dec esp EXCEPTION_RECORD: ffffffff -- (.exr 0xffffffffffffffff) ExceptionAddress: 748bc9f1 ExceptionCode: c0000005 (Access violation) ExceptionFlags: 00000000 NumberParameters: 2 Parameter[0]: 00000008 Parameter[1]: 00000000 Attempt to execute non-executable address 00000000 PROCESS_NAME: iexplore.exe ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s. EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s. EXCEPTION_PARAMETER1: 00000008 EXCEPTION_PARAMETER2: 00000000 WRITE_ADDRESS: 00000000 FOLLOWUP_IP: agcore!CFrameworkElement::SetValue+1d7 5c704fa8 84c0 test al,al FAILED_INSTRUCTION_ADDRESS: +56b3952f04ebde68 748bc9f1 654c dec esp NTGLOBALFLAG: 0 APPLICATION_VERIFIER_FLAGS: 0 FAULTING_THREAD: 00001560 BUGCHECK_STR: APPLICATION_FAULT_SOFTWARE_NX_FAULT_NULL PRIMARY_PROBLEM_CLASS: SOFTWARE_NX_FAULT_NULL DEFAULT_BUCKET_ID: SOFTWARE_NX_FAULT_NULL LAST_CONTROL_TRANSFER: from 5c704fa8 to 00000000 STACK_TEXT: WARNING: Frame IP not in any known module. Following frames may be wrong. 0f61f74c 5c704fa8 1b17a134 193b8e08 0e690e14 0x0 0f61f76c 5c712360 0e690e14 1b17a134 0e690e14 agcore!CFrameworkElement::SetValue+0x1d7 0f61f788 5c7123a8 0e690e14 1b17a134 0e690e14 agcore!CShape::SetValue+0x72 0f61f7a0 5c70a6ff 0e690e14 1b17a134 00000000 agcore!CEllipse::SetValue+0x3b 0f61f7d0 5c752c2b 1b17a090 193b8e08 00000000 agcore!CAnimation::DoSetValue+0x50 0f61f810 5c7a7fb1 0f61f884 0f61f868 1b17a090 agcore!CAnimation::UpdateAnimationUsingKeyFrames+0x3b5 0f61f82c 5c707146 00000000 00000000 00000000 agcore!CAnimation::UpdateAnimation+0x184 0f61f87c 5c7071e5 3e4c8000 0f61f8cc 00000000 agcore!CTimeline::ComputeState+0x13a 0f61f89c 5c706d49 193f82b0 0f61f8cc 0f61f8d4 agcore!CTimelineGroup::ComputeState+0x8c 0f61f8ac 5c7069c7 3e4c8000 0f61f8cc 0b111f60 agcore!CStoryboard::ComputeState+0x48 0f61f8d4 5c706a29 0e6a0ca0 00000000 0e490070 agcore!CTimeManager::Tick+0x79 0f61f8e8 5c78f960 0b0e6d68 0f61f990 00000000 agcore!CCoreServices::Tick+0x21 0f61f940 5c706ac2 0b111f60 0e42ca08 ffffffff agcore!CCoreServices::Draw+0x140 0f61f964 67ac141c 0af99b90 00000000 0f61f990 agcore!CCoreServices::Draw+0x2d 0f61f9b4 67a933c2 0f61f9c8 00000000 00000000 npctrl!CXcpBrowserHost::OnTick+0x1b1 0f61f9e0 67a927c6 0064069c 00000402 00000000 npctrl!CXcpDispatcher::Tick+0xf3 0f61fa08 67a92709 0064069c 00000402 00000000 npctrl!CXcpDispatcher::OnReentrancyProtectedWindowMessage+0xcd 0f61fa28 764b6238 0064069c 00000402 00000000 npctrl!CXcpDispatcher::WindowProc+0xb8 0f61fa54 764b68ea 67a9269d 0064069c 00000402 user32!InternalCallWinProc+0x23 0f61facc 764b7d31 00000000 67a9269d 0064069c user32!UserCallWinProcCheckWow+0x109 0f61fb2c 764b7dfa 67a9269d 00000000 0f61fbb4 user32!DispatchMessageWorker+0x3bc 0f61fb3c 6fe504a6 0f61fb54 00000000 0ab11908 user32!DispatchMessageW+0xf 0f61fbb4 6fe60446 0af956a0 00000000 0b18a338 ieframe!CTabWindow::_TabWindowThreadProc+0x452 0f61fc6c 769d49bd 0ab11908 00000000 0f61fc88 ieframe!LCIETab_ThreadProc+0x2c1 0f61fc7c 76e53677 0b18a338 0f61fcc8 77829d72 iertutil!CIsoScope::RegisterThread+0xab 0f61fc88 77829d72 0b18a338 7dbc895d 00000000 kernel32!BaseThreadInitThunk+0xe 0f61fcc8 77829d45 769d49af 0b18a338 00000000 ntdll!__RtlUserThreadStart+0x70 0f61fce0 00000000 769d49af 0b18a338 00000000 ntdll!_RtlUserThreadStart+0x1b SYMBOL_STACK_INDEX: 1 SYMBOL_NAME: agcore!CFrameworkElement::SetValue+1d7 FOLLOWUP_NAME: MachineOwner MODULE_NAME: agcore IMAGE_NAME: agcore.dll DEBUG_FLR_IMAGE_TIMESTAMP: 4a67e422 STACK_COMMAND: ~44s; .ecxr ; kb FAILURE_BUCKET_ID: SOFTWARE_NX_FAULT_NULL_c0000005_agcore.dll!CFrameworkElement::SetValue BUCKET_ID: APPLICATION_FAULT_SOFTWARE_NX_FAULT_NULL_BAD_IP_agcore!CFrameworkElement::SetValue+1d7

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  • GDB Not Skipping Functions without Debug Info

    - by Alan Lue
    I compiled GDB 7 on a Mac OS X Leopard system. When stepping through a C program, GDB fails to step through 'printf()' statements, which probably don't have associated debug information, and starts printing "Cannot find bounds of current function." Here's some output: $ /usr/local/bin/gdb try1 GNU gdb (GDB) 7.1 Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-apple-darwin10". (gdb) list 1 #include <stdio.h> 2 static void display(int i, int *ptr); 3 4 int main(void) { 5 int x = 5; 6 int *xptr = &x; 7 printf("In main():\n"); 8 printf(" x is %d and is stored at %p.\n", x, &x); 9 printf(" xptr holds %p and points to %d.\n", xptr, *xptr); 10 display(x, xptr); (gdb) b 6 Breakpoint 1 at 0x1e8e: file try1.c, line 6. (gdb) r Starting program: /tmp/try1 Breakpoint 1, main () at try1.c:6 6 int *xptr = &x; (gdb) n 7 printf("In main():\n"); (gdb) n 0x0000300a in ?? () (gdb) n Cannot find bounds of current function (gdb) n Cannot find bounds of current function Any idea what's going on? Alan

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  • VB.net Debug sqldatareader - immediate window

    - by ScaryJones
    Scenario is this; I've a sqldatareader query that seems to be returning nothing when I try to convert the sqldatareader to a datatable using datatable.load. So I debug into it, I grab the verbose SQL query before it goes into the sqldatareader, just to make sure it's formatted correctly. I copy and paste this into SQL server to run it and see if it returns anything. It does, one row. I go back to visual studio and let the program continue, I create a datatable and try to load the sqldatareader but it just returns an empty reader. I'm baffled as to what's going on. I'll copy a version of the code (not the exact SQL query I'm using but close) here: Dim cn As New SqlConnection cn.ConnectionString = <connection string details here> cn.Open() Dim sqlQuery As String = "select * from Products where productid = 5" Dim cm As New SqlCommand(sqlQuery, cn) Dim dr As SqlDataReader = cm.ExecuteReader() Dim dt as new DataTable dt.load(dr) dt should have contents but it's empty. If I copy that SQL query into sql server and run it I get a row of results. Any ideas what I'm doing wrong? ######### UPDATE ############ I've now noticed that it seems to be returning one less row than I get with each SQL query. So, if I run the SQL myself and get 1 row then the datatable seems to have 0 rows. If the query returns 4 rows, the datatable has 3!! Very strange, any ideas anyone?

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  • How to debug jQuery ajax POST to .NET webservice

    - by Nick
    Hey all. I have a web service that I have published locally. I wrote an HTML page to test the web service. The webservice is expecting a string that will be XML. When I debug the web service from within VS everything works great. I can use FireBug and see that my web service is indeed being hit by they AJAX call. After deploying the web service locally to IIS it does not appear to be working. I need to know the best way to trouble shoot this problem. My AJAX js looks like this: function postSummaryXml(data) { $.ajax({ type: 'POST', url: 'http://localhost/collection/services/datacollector.asmx/SaveSummaryDisplayData', data: { xml: data }, error: function(result) { alert(result); }, success: function(result) { alert(result); } }); The web method looks like so: [WebMethod] public string SaveSummaryDisplayData(string xml) { XmlDocument xmlDocument = new XmlDocument(); xmlDocument.LoadXml(xml); XmlParser parser = new XmlParser(xmlDocument); IModel repository = new Repository(); if(repository.AddRecord("TestData",parser.TestValues)) { return "true"; } return "false"; } } I added the return string to the web method in an attempt to ensure that the web-service is really hit from the ajax. The problem is this: In FF the 'Success' function is always called yet the result is always 'NULL'. And the web method does not appear to have worked (no data saved). In IE the 'Error' function is called and the response is server error: 500. I think (believe it or not) IE is giving me a more accurate indication that something is wrong but I cannnot determine what the issue is. Can someone please suggest how I should expose the specific server error message? Thanks for the help!

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  • How do I debug a HTTP 502 error?

    - by Bialecki
    I have a Python Tornado server sitting behind a nginx frontend. Every now and then, but not every time, I get a 502 error. I look in the nginx access log and I see this: 127.0.0.1 - - [02/Jun/2010:18:04:02 -0400] "POST /a/question/updates HTTP/1.1" 502 173 "http://localhost/tagged/python" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3" and in the error log: 2010/06/02 18:04:02 [error] 14033#0: *1700 connect() failed (111: Connection refused) while connecting to upstream, client: 127.0.0.1, server: _, request: "POST /a/question/updates HTTP/1.1", upstream: "http://127.0.0.1:8888/a/question/updates", host: "localhost", referrer: "http://localhost/tagged/python" I don't think any errors show up in the Tornado log. How would you go about debugging this? Is there something I can put in the Tornado or nginx configuration to help debug this? EDIT: In addition, I get a fair number of 504, gateway timeout errors. Is it possible that the Tornado instance is just busy or something?

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