Application to visualize program flow

I'm looking for an easier way to "visualize" what is going on in the source code of a large project, in regards to function calls, method calls, and classes.
For example, a source directory of a project will have a bunch of files, like this:
anim.c
character.c
direction.c
game.c
input.c
main.c
player.c
resources.c
room.c
screen.c
If I didn't know anything about this project, if I wanted to try to understand how it works it would be difficult to start.
Does anyone know of an application that will read source code and display a tree-like output of the program flow? For example, maybe like this:
main() [main.c]
-> create_game() [game.c]
-> reset_timer() [timer.c]
-> update_game() [game.c]
---> update_world() [world.c]
---> is_game_over() [game.c]
---> ...
-> draw_game() [game.c]
---> draw_world() [world.c
---> ...
-> destroy_game() [game.c]
How about for classes and method calls?
I don't care if it's GUI or CLI, or what programming language it's for. I think a program like this would be incredibly useful, especially in the FOSS community, and would be surprised if something doesn't already exist.

cflow - For C programs. Nice and simple.
KCacheGrind - Uses the "callgrind" application. I couldn't find callgrind in the Arch repositories or the AUR, so I gave up.
codeviz - For C and C++ programs. I got it to produce a beautiful PNG tree of all of my function calls. I probably won't use it. A graphical tree output isn't so useful to me, and it was a bit tricky to actually setup and use. (for example, it requires a patched version of GCC)
egypt - For C programs. Super duper simple concept, but requires some setup to use. I couldn't figure out how to configure and run it.
gprof - Part of the GNU Binary Utilities. A little too low level for what I was looking for.
pycallgraph - For Python programs. I didn't try it.
doxygen - Is able to create documentation for anything in the world, including your car. I wish someone could tell me, "Type this doxygen command to create a call graph", but until that happens, I just can't seem to figure it out.
cflow is definitely my favorite. I will do some post processing to the output to remove any functions that I didn't write.
EDIT: Someone did a similar "review" to mine here, along with mentioning more programs to try out: http://grok2.tripod.com/code_comprehension.html
Last edited by drcouzelis (2010-10-07 13:13:45)

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Dialog Box simulation without interrupting program flow

I'm developing data acquisition/control software and need to give the end
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a dialog box results in the stoppage of program flow for the caller until
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I am looking for the best way to accomplish this under LabVIEW 6i.
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correctly, and terminates as expected. Unfortunately, it remains visible on
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Afterwards if Originally Closed checkboxes checked on this popup VI. It
seems that calls through VI Server trigger the "Originally Open" flag, so
the window does not close as I had expected.
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an intermediate subroutine whose front panel is not displayed and whose sole
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press a button that triggers a call to VI Server to open a separate
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disappear and I'm left with just the primary program executing, continuing
to take and send control signals through this whole process.
This seems a rather cumbersome way to get a custom dialog box on the screen
without stopping the program flow of the caller, however. Is there a more
efficient way to accomplish this?
Wade C. Eckhoff
[email protected]

Wouldn't it be easier to use two parallel independent while loops in the
main vi, with one taking care of acquisition and the other of user
interaction.
When the UI loop is temporarily 'halted' because of the dialogue box poping
up, the acquiring loop continues without delay.
Regards
Harrie Boonen
www.novonordisk.com
"Default User" wrote in message
news:[email protected]...
> I'm developing data acquisition/control software and need to give the end
> user flexibility to change the file to which the acquired data is being
> saved during operations. In the past, users have been confused with a
> simple string control that specifies the data file path, so I would prefer
> to move to the popup/dialog box standard to windows. Unfortunately,
calling
> a dialog box results in the stoppage of program flow for the caller until
> the dialog box is closed (even though there may be no apparent data flow
> from the popup VI.) and stopping the program flow is not an option for
this
> control system (the computer is controlling pressure, temperature, flow
> rates, etc of a very expensive and sensitive bit of hardware, so halting
the
> control function for an unknown length of time is unacceptable).
>
> I am looking for the best way to accomplish this under LabVIEW 6i.
>
> Using a VI class reference through VI Server, I can essentially detach the
> popup window from the base program execution, spawning a separate
> application and passing the relevant parameters through judicious use of
> global variables. If I call the subroutine via VI server with "Wait until
> done" attribute set to false, the appropriate VI appears, functions
> correctly, and terminates as expected. Unfortunately, it remains visible
on
> the screen, an inactive application. I have the VI Properties -> Window
> Appearance -> Customize -> Show Front Panel When Called and the Close
> Afterwards if Originally Closed checkboxes checked on this popup VI. It
> seems that calls through VI Server trigger the "Originally Open" flag, so
> the window does not close as I had expected.
>
> The way I have found to get around this problem is to use VI Server to
call
> an intermediate subroutine whose front panel is not displayed and whose
sole
> purpose it to call the subroutine that calls the dialog box. This does
what
> I wanted, essentially. When the user wants to change directories, they
> press a button that triggers a call to VI Server to open a separate
> application. This application's front panel is never displayed and only
> calls a sub-VI that performs all the actual work and ends when it is
> completed. As this sub-VI terminates, all visible traces of the
subroutines
> disappear and I'm left with just the primary program executing, continuing
> to take and send control signals through this whole process.
>
> This seems a rather cumbersome way to get a custom dialog box on the
screen
> without stopping the program flow of the caller, however. Is there a more
> efficient way to accomplish this?
>
>
> Wade C. Eckhoff
> [email protected]
>
>
>

Help with program flow and timing a loop please

I'm working on an application that will display vibration data on several tabs. 1 tab displays the time waveform, another a running RMS value, another an FFT etc.
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I created a sub-vi with a flat sequence structure.
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Attachments:
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WriteToDisk.pdf ‏85 KB

The behavior you're seeing is by design. There are two solutions to your problem:
Place the write to file in a separate loop that runs in parallel to your main loop. Thus, your "Project3" VI would have two loops. One is the data acquisition, the other is the streaming to file. You should not create data dependencies between the loops that would cause one loop to wait until the other is done. You want both running in parallel. You can stop both loops with the same stop button. With this method you can use local variables to get the Time Waveform data as you're doing now.
Launch the stream to file VI dynamically. This basically uses the VI Server to start a subVI and then immediately return to the caller. The subVI is then running on its own. There are examples that ship with LabVIEW that show you how to do this. You would have to have the subVI monitor something to determine if it should stop should the main program stop.
The first option would be the easiest to implement in your case. The second is more complex, but leaves you with one loop.

Staying in a frame, not returning to main program flow

I'm creating a Java-program (Swing) that records results of a chess tournament and calculates a new ranking each time a new round is entered, i.e. when the user enters results like
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Karpov - Kortchnoi remise
etc.
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Problem is that the progam-flow returns to the main program as soon as the new panel is displayed. I don't want that!!! I do want that nothing happens in the main program until the user presses "done" in the panel. The current code looks like
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If separate dialog window is ok, then the JDialog in modal mode is propably an answer. If shown in modal mode, no other windows for application will receive any user events and the show() method won't return until dialog is closed.
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In the second stage, you have to construct event listening mechanism - each of UI components may have own ActionListener (or/and others) installed. You have to install them on all elements you need to react on - in your case it will be "done" button. You decide here how active elements will behave.
Third stage is an actuall application run - it starts from the moment the frame is shown. The UI engine takes over all user actions and distributes it to all UI components, which in reaction redraws themselfs and/or broadcasts proper events to own listeners. This process repeates forever.
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So, in your case the proper way will be:
0. Create whole UI, by adding apropiate containers and components. Make your game panel "disabled" (there are methods for that - setEnabled(false)). The disabled components do not produce events to listeners and have limited reactions on user input. Do not run any user interaction code here!
1. Create action listener on "Done" button, in which you check input data and enable game panel;
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P.S.
Remember, a class is a rubber stamp which you use to produce class instances - OO beginners often misunderstood that.

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Problem signature
Problem Event Name:    APPCRASH
Application Name:    Safari.exe
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Application Timestamp:    4f982b5e
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OS Version:    6.1.7601.2.1.0.256.1
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Additional Information 1:    0a9e
Additional Information 2:    0a9e372d3b4ad19135b953a78882e789
Additional Information 3:    0a9e
Additional Information 4:    0a9e372d3b4ad19135b953a78882e789
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im having this problem to ive uninstalled and installed but this still comes up!!
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Fault Module Name:    StackHash_0a9e
Fault Module Version:    0.0.0.0
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Exception Offset:    00000000
Exception Code:    c0000005
Exception Data:    00000008
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Additional Information 1:    0a9e
Additional Information 2:    0a9e372d3b4ad19135b953a78882e789
Additional Information 3:    0a9e
Additional Information 4:    0a9e372d3b4ad19135b953a78882e789

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Solved!
Go to Solution.

I have done this before...I have a small LabVIEW .exe which looks at the version of a VI and selects the appropriate version of LabVIEW to open it with if available. It also adds explorer context menu items for allowing you pick a specific version of LabVIEW to open the file with.
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Certified LabVIEW Architect, Certified TestStand Developer
NI Days (and A&DF): 2010, 2011, 2013, 2014
NI Week: 2012, 2014
Knowledgeable in all things Giant Tetris and WebSockets

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Booleans to control programming flow

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ABAP program flow.

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whenever i write abap program, i usually maintain following program flow. is it right from performance tuning point of view?
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BR,
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How to stop the program flow

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Don't know how to halt program flow

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The initial message is at
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I want to pause the current thread from an event handler (from mousePressed(), to be specific), then do some animation that accesses the GUI and then resume program flow.
I tried various things, but no luck.
SOMEONE PLEASE GUIDE ME.
When the animation code is called and the thread is paused (by Thread.sleep()), the animation also pauses.
When I try using SwingUtilities.invokeAndWait , the following runtime error occurs:
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But the problem is that when the computer makes move, it does it so fast that sometimes the user
doesn't see which part of the panel is changing, wondering whether the program is making a legal
move. So, after calculating the move but just before implementing it , I want to halt the program's flow,
then animate (blink) the small region in the JPanel where the moves are going to be made (to draw
user's attention) and then resume the program to make moveYou're not allowed to pause the event dispatch thread (EDT) - otherwise your program will freeze.
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ABAP Object program flow

Hi all,
I'm starting to play with ABAP Object, and am very comfortable with OO features (coming from Java).
Currently, I am hesitating on the way to code my program flow. Let me explain:
Is it common practice to manage the screens flow within methods (with SET SCREEN etc.)?
I would think that this is kind of bad, since it requires local classes, and is simply kind of weird (to someone coming from Java anyway). Is continuing to handle this via MODULES and such still a good way to go?
Thanks for any enlightenment you can bring me.

Hello,
First, I din't mentioned that you said JAVA is better. I just said the things what u can do in JAVA u can achieve and there is a way in ABAP also. I tihnk u misunderstood my statements. :)..no hard feelings...
Ok.
BADI's are kind of Exits. To make it in a simple statement SAP has provided us with a way to enhance the business process.
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Send me you mail ID I will forward good document on BADI's.
Regs,
Venkat Ramanan N

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