I've successfully managed to implement ZBS to debug the scripting code of a C++ real time game. It works really great!
However, there is still an issue that I don't know how to solve: if I press the stop debugging button or menu option during a debugging session, my C++ host program crashes.
Would you please give me ideas of why this could be happening?
Thanks a lot in advance,
kind regards,
Mauricio.
Stopping debugging calls os.exit(1, true) by default, so you will need to check if the resources are correctly released in this case. If you want to provide your own handler, you can do it by setting require('mobdebug').onexit = function() --[[your exit handler]] end in your application.
Related
Okay, I have had the most aggravating problem with OpenFileDialog1. I have a program that I've been using for some 8 months, and in the past month, the program has begun to hang randomly when utilizing the OpenFileDialog1.ShowDialog() function. I have already read through all of the other posts about multi-threaded vs single threaded application. This did not fix it. Enabling the "Show Help" button did not fix it. I am mostly at a loss. here is a thorough walkthrough of the bug:
Run the application. I can always use the Open File button a few times with no problems. It freezes randomly after the program has been running for awhile.
The freeze happens after I push the ShowDialog button, and never displays the Open File Dialog window. The entire program locks up and hangs. If I pause it, Visual Studio doesn't show an error. It underlines the OpenFileDialog1.ShowDialog() in green, which is very odd.
I have found a way to break the freeze. Simply run a second instance of the program and use the OpenFileDialog function. As soon as it loads the file in the second instance, the first instance unfreezes. However, this is not a fix.
The only thing I can think of that may be causing this is the program also uses a WebBrowser1 control. It only seems to happen AFTER the WebBrowser control, which is on a seperate form, not the main form, has been initiated and utilized. Does this make any sense at all?
Thank you for anyone who can help me. I am about to tear my hair out.
Debug your program with dnspy, And when the software freezes, you will be able to see within the dnspy the actual code even if it is in a third party DLL.
I have solved this problem. It was quite unsolveable based on my description above, but hopefully I will help someone with this solution. The error is related to using the IE11 Emulation Control (11000) in the WebBrowser1 control. For some reason this interferes with OpenFileDialog and causes it to hang. I have no idea why. I changed my WebBrowser1 to use IE9 Emulation Control (9999) and the error has gone away. Thank you to those who looked into this. This is a registry entry in HKEY_CURRENT_USER.
Got very annoying thing while hard working - Intellij IDEA thinks that I always should have a look at event which is important as it considers.
No, Skyline, it's not such important as you think =)
For example I run a heavy code and while it's running, I'm looking at something else in browser, or making notes in editor AND BANG!!:
since debug breakpoint was met in my application - IDEA makes its window active and overlaps all others.
There were plenty of situations when I was typing smthg, even login info in input fields and in that moment IDEA came on top of windows so I was interrupted, made mistakes, sent info to wrong resource etc. and get angry.
Is there any chance to tell IDEA to be silent at least on debug events?
I want IDEA to switch its window to breakpoint place in code BUT I don't want IDEA to make its ON TOP on my screen at that moment.
thank you.
Try to disable Settings | Build, Execution, Deployment | Debugger | Focus application on breakpoint:
When I start a debug session, program execution halts at a line that appears to be breakpoint (yellow background color). I must press F5 to continue, and the program proceeds normally.
I call it a phantom breakpoint because no breakpoint appears to be set, and even though executions stops within a loop, I need only press F5 once to proceed.
I tried setting a breakpoint at the phantom location, and removing all breakpoints but to no avail.
The only other similar problems I can find are for Java, and MS-Access where the solution was to de-compile the application.
Although this is very annoying while in development, I was gritting my teeth and baring it until the application was installed on a Citrix server where an error message box is displayed saying that a breakpoint had been encountered.
As an afterthought, I just rebuilt the setup program and after running the application, a critical error was issued. In debug mode, the message was "myapp.exe has triggered a breakpoint:". I cannot explain why it works at all on the Citrix server).
I sure would appreciate any suggestions on how to resolve this issue.
TIA
You are running somebody else's code and that code has an explicit debugger break instruction compiled into the program. You can do so for example by writing Debugger.Break() in a managed program. It could also exist in unmanaged code, the __debugbreak() intrinsic or the DebugBreak() winapi function do this. Could be a simple oversight, it could be that it was intentionally left in the code to warn about a problem.
One way to find the programmer that did this is by using the debugger. Project + Properties, Debug tab, tick the "Enable unmanaged code debugging" option. Then Tools + Options, Debugging, General, untick the "Enable Just My Code" option.
Run the program and reproduce the condition. Now use Debug + Windows + Call Stack and look at the very top of the list. Scroll up if necessary. It might well be grayed out to indicate that this is not your code, it won't be. You'll see the name of a DLL there. Call the company or programmer that wrote that DLL and ask for advice.
I'm new to NSZombie but I have a problem with my app crashing with EXC_BAD_ACCESS. I'm having real trouble finding the object that is causing the problem. Looking online I followed instructions to enable zombie objects.
The problem I'm having has been reported by another person on that page. Enabling zombie objects stops the bad access error but gives me no information. Nothing is printed by NSLog. Is there somewhere else I should look, or am I doing something wrong? I don't really know my way round XCode or a Mac very well as I'm mainly a C# programmer.
Any help would be most welcome.
1) Run your app on Intruments.
2) In instruments, select Object allocations tool(automatically selected if you select leaks tool).
3)Click on the little "i" on top left, within the Allocations tool.
4) Select "Enable NSZombie detection".
5) Press the record button and let your app run.
6) Go through the execution of the app untill it crashes. As soon as there is a crash, you'd see a pop up saying that there was a EXC_BAD_ACCESS. Click on the little -> on the pop up to see the object that has turned into a zombie and the line of code responsible.
Sorry I am unable to upload a screenshot, as am at work.
Expand your project Executable and right click on it. and click on GetInfo->Argument tag aat end of the window you see plus and minus sign button click on + sighn button and write
Name Value
NSZombieEnabled YES
then after execute your project and whenever crash your application click on run munu-> console you see there why your application crash. please try this may be this will help you.
I'm writing a simple Cocoa Application, no core data or multiple document support. Running on a Mac Pro, OS X 10.6.6, Xcode 3.2.3.
I have reduced my application to the following code in my AppDelegate class:
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
NSOpenPanel *openPanel = [NSOpenPanel openPanel];
[openPanel runModal];
return;
}
From within the debugger, I will run my application. As expected a somewhat not-to-useful OpenPanel will appear. I will click Cancel and it will disappear. All this is as expected. When I click [Command + Q] to Quit the application, the UI will go away but the debugger will indicate that the application is still running (as does the console output).
Based upon all the information I'm reading, I should not have to do anything else in order for this to run right. I've downloaded several examples on the Open Panel's usage but most use the deprecated methods of opening modal giving additional information as parameters. FWIW, I tried those methods and am still seeing the same result.
One last item, when the Open dialog appears, just for an instant I see a message box asking me something to the extent if I want my application to receive incoming connections. The dialog quickly disappears. I don't know if that is part of my problem or not. [Update - this deals with my Firewall being turned on.]
Yes, I'm fairly new at Objective C but not at programming in general. Any words of wisdom is greatly appreciated!
2011.02.07 - Update:
I have walked the debugger line by line without incident. There is no indication of any program failure in the console window.
I say that the debugger is still active after [Command + Q] because the Stop Process toolbar button is still enabled as is the Break button. Further the console indicates that after I tell the application to terminate (either via the menu or key command) that it is still running. The following is the Complete console output from start of run to after I Quit the application.
Program loaded.
run
[Switching to process 62370]
Running...
The Activity Monitor (system tool) will show my application terminating (no longer shows up as a process) but the Debugger will still not transition to "edit" mode - if I tell Xcode to run the debugger again, it will ask me if it's OK to Stop the current debugging session. If I was in Windows I would start looking for background threads keeping the process alive but as far as I know, NSOpenPanel should not be doing something like that.
I have further simplified the program to nothing more than creating a brand new Cocoa application and inserting the code snippet above - no other additions to the template project or updates in any way.
And lastly, when the application is run under the Leaks Performance Tool, everything runs fine when the panel is created but never used. When created and actually used though, at the end of the run I will get the following message in the tool "insufficient task_for_pid privileges (leakagent64)". Googling this hurts. If I read it right, the debugger does not have sufficient permissions to fully kill the target process ??? Now that sounds stupid but ... It does not make sense!
Another update - I just downloaded and ran FunHouse, one of the SDK sample applications that also uses NSOpenPanel. Well don't I feel special. It exhibits the same exact behavior. So from this I conclude either Apple has a bug in their code, my machine is special and messed up, and finally, it is Not my code that is at fault. That being the best part. Tomorrow, I will use a friends Mac and see if the same behavior is exhibited on his box.
This is just too weird.
I rebooted my box, took it to work and found it worked like a charm! I will assume this is fixed and has nothing to do with any other connected devices at home as compared to at work.
If it re-exhibits at home, then it is a network/device issue. Thanks all for your inputs and suggestions! Very much appreciated.
What, specifically, does the debugger say? It's possible that your program crashed, so the debugger is showing you information about the crash.
What if you omit any attempt to run an Open panel?