TL;DR: How can I make CLion kill off any running versions of the code before building the new one?
I've started playing with CLion for C++. I noticed that I often forget to stop the last iteration before trying to compile again, which leads to "Permission denied" errors -- when I first encountered this, it took me almost half an hour of fiddling with permission settings before realizing that it was because the old version was still running, and therefore couldn't be replaced with the new executable.
As far as I can tell, there's no way to do this in CMake without embedding a Batch (since I'm on Windows) script. I'd like to avoid that, because it'd be a lot of unnecessary complexity for... not that much reward.
In short, is there an option in CLion or something in CMake that will stop the previous iteration when running the new one?
Yes there is. Simply press ctrl + F2 or goto Run > Stop to terminate the previous iteration in case it keeps running.
Alternatively, you can set to run only single instance. This way previous instance will always be terminated before running the new one. To enable this, goto Run | Edit Configurations and select Single Instance Only.
As far as I know, this is not possible by default.
One solution I have found was to create a batch file with the following content:
#echo on
tasklist /FI "IMAGENAME eq %1" 2>NUL |find /I "%1">NUL
if "%ERRORLEVEL%"=="0" taskkill /F /im %1
(Second line checks whether the process is running - found here: How to check if a process is running via a batch script)
And edit the build configuration to make CLion call the batch file and pass the processname to it before every build.
This is how it works:
Run > Edit Configurations > select the configuration to change (in my case "Build All")
In the "Before launch: External..."-section click the green plus
Choose "Run external tool" and click the green plus in the pop-up window
Choose a name for the tool
Add the path of the batchfile in the "Program:" field
Write $ProjectName$.exe into the "Parameters:" field
Click ok until you are back in the config window
Give the script a sufficient priority by selecting it and clicking the arrow up
Now it should try to kill the running process before every build.
Related
I'm using Tortoise SVN, and TortoisePlink for remote ssh connections.
From time to time TortoisePlink is displaying errors like:
---------------------------
TortoisePlink Fatal Error
---------------------------
Network error: Software caused connection abort
---------------------------
OK
---------------------------
And they appears as messagebox and needs to be clicked by end-user.
I have tried to suppress messagebox by using -batch from command line, but problem still can be reproduced. For me it's sufficient if I'll disable messagebox prompting and print for example in command line same information - since my batch will retry later on again automatically.
Does there exists such software which can override default windows behavior and print in console window whatever is displayed in message box.
I guess in simplest terms such command line tool can be easily created, using for example
http://www.codeproject.com/Articles/44326/MinHook-The-Minimalistic-x-x-API-Hooking-Libra
and override MessageBoxA / MessageBoxW - but have anyone done this kind of thing ?
I think you're going about this the wrong way. Instead of trying to suppress the dialog boxes that TortoisePlink is showing, use the original Plink. TortoisePlink is a fork of Plink to explicitly show message boxes and not print anything on a command line, because it's designed for an UI app and not for console apps.
And if you really only want to use svn from a batch file, don't use TortoiseSVN but the original svn command line client (can be installed with the TSVN installer as well) and use the 'svn' command from the command line.
TortoisePLink.exe is targetted for end-user - so it's intended to display message boxes, however - there also exists a command line version of PLink.exe, and it can be downloaded from here:
http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html
Please notice that "TortoiseSVN" > "Settings" > "Network" > "SSH Client" should use TortoisePLink.exe - errors will be displayed to end-user.
For following file however -
%appdata%\Subversion\
file ‘config’:
In section [tunnels]
Add line like this:
ssh = Plink.exe -l <your login> -pw <password>
You should use command line version of PLink.exe (that is also displaying command prompt when launched).
It's easier to save PLink.exe next with TortoisePLink.exe, that is into
C:\Program Files\TortoiseSVN\bin.
I have tried to make a command line tool for supressing messageboxes, but it's useless for TortoisePLink.exe (Haven't debugged what is the problem), but in case if you're interested (Have other means to use it):
https://sourceforge.net/p/diagnostic/svn/HEAD/tree/Tools/msgboxSupress/
msSupress.cpp is compiled into .dll and it uses minimalistic hook for windows to disable MessageBoxA and MessageBoxW - actually they will be printed to console or redirected to file.
msSupressExe.cpp is compiled into .exe and it starts process in suspended mode, replaces .exe's entry point with EB FE (jump short into itself), waits until that address is reached, injects .dll and .dll will hook new process.
I have tested only on 64-bit platform - I suspect that command being executed must match same platform as as msSupress.exe.
So typically TortoisePlink.exe will display messagebox - but when executed like this:
mbSupress.exe "C:\Program Files\TortoiseSVN\bin\TortoisePlink.exe"
Same stuff as shown over message box will be displayed in console.
I think this solution is good prototype for further virus or trojan construction - using technique like this will allow to intercept even keyboard presses on any application - but I now made a command line utility, not a virus.
I'm currently developing an application with QT 4.8 with a "Launch on login" option. My main problem currently is that I can't seem to find a proper way to make the program launch itself after login on Linux (Fedora 20 in my case).
My program should be able to run in the background without stopping fedora to launch.
I would also like to avoid having to ask for any sort of admin privilege since my application doesn't require any (except maybe for this option).
Finally found out about "home/.config/autostart/.desktop".
I'll have to create autostart if it's not created but from there I can chose to make or delete the file depending on what my user decided to do.
The .desktop file have to follow a particular syntax (which is not a problem for me)
[Desktop Entry]
Type=Application
Exec=</path/to/binary or command to execute>
Hidden=false
NoDisplay=false
X-GNOME-Autostart-enabled=true
Name=<Name_to_be_displayed>
Comment=<optional comment>
In my case, I can just remove the "comment" line since just the name of the application should be enough for the user to recognize it.
You can Either keep your executable in side /etc/rc.d/rs or inside /etc/init.d folder, so that it can automatically start once device is up.
Hope this Helps.
Each user has a .bashrc file located in their home directory, you could append a command to run your application to the end of that.
That will run when only that user logs in (I think either with graphical or terminal session)
To run for all users, look at creating a systemd service if you dare, or append a line to the end of /etc/rc.local. You'll need to be root for that though.
EDIT: Don't forget to put an ampersand at the end of the command to run in background.
I recently reinstalled Cygwin on my computer in order to get access to several command line elements that I was missing. I have never had previous difficulty with Cygwin, but after this reinstallation, an error message continues to appear after (almost) each command entered. For instance:
-bash-4.1$ wc m1.txt
3 [main] bash 2216 child_info_fork::abort: data segment start: parent(0x26D000) != child(0x38D000)
-bash: fork: retry: Resource temporarily unavailable
2013930 4027950 74968256 m1.txt
Generally, the command still runs (as seen above), but not always. Occasionally, the 'error' message occurs several times in a row (the initial number "3" will then change to a "4" or "2", notably if I start a second Cygwin window.
Also, as soon as I start up Cygwin, I get the following message before the prompt:
3 [main] bash 6140 child_info_fork::abort: data segment start: parent(0x26D000) != child(0x36D000)
-bash: fork: retry: Resource temporarily unavailable
-bash: fork: Resource temporarily unavailable
-bash-4.1$
At the moment, I am debating whether to uninstall/reinstall Cygwin again or just live with the error messages, but I was curious if there might be an issue that I am unaware of.
(assuming Cygwin is installed at C:\Cygwin):
Open Task Manager and close any processes that look to be Cygwin related.
Open C:\Cygwin\bin in Windows Explorer
Verify that dash.exe, ash.exe, rebase.exe, and rebaseall exist in this folder
If any of them are missing, re-run Cygwin setup and select the dash, ash, and rebase packages
right-click your C:\Cygwin folder, uncheck Read-only (if its checked), and press OK.
When an error about not being able to switch some files comes up, select "Ignore All". Wait for this process to complete.
Browse to C:\Cygwin\bin in Windows Explorer
Right click dash.exe and click "Run as Administrator". A command Prompt should appear with nothing but a $
Type /usr/bin/rebaseall -v, hit enter, and wait for the process to complete.
If you get errors about Cygwin processes running, try Step 1 again. If that still doesn't work, Restart your computer into safe mode and try these steps again.
A commenter noted that, depending on your settings, you may have to type cd /usr/bin && ./rebaseall -v instead.
Try opening Cygwin again.
This process worked for me. I hope it works for you guys too.
Source: http://cygwin.wikia.com/wiki/Rebaseall
I would like to add the following to the above answers, as it is what I had to do after reinstalling Cygwin:
Navigate to the "/usr/bin" directory (usually, C:\cygwin\bin) and right click, Run as Administrator the file: dash.exe
Then, at the $ prompt type the following, hitting enter after each line:
cd /usr/bin/
/usr/bin/peflags * -d 1
/usr/bin/rebaseall -v
What it does is, it marks the dll's as "rebase-able," and then rebases them. You have to have peflags.exe in addition to the above files (in previous answers). You may have to restart windows after doing this and you will definitely need to make sure that there are no processes nor services belonging to cygwin running. (Use task manager, kill any related processes, and then under the services tab look for any service starting with CYG and stop it.)
After doing this, I was able to get cygwin to run without any errors about dll's being loaded to the wrong addresses aka fork errors, etc.
I hope that this helps others, as it was a pain to find.
SOURCE: http://www.cygwin.com/faq.html#faq.using.fixing-fork-failures
and the rebase README file.
To add on to other answers here, we ran into the same issue but could not run the rebase command from the ash or dash shell. However, when launching the command from the Windows cmd shell, the following worked.
cmd /c "C:\cygwin64\bin\ash.exe /usr/rebaseall -v"
-v is to get verbose output
I found another information here :
http://cygwin.com/ml/cygwin/2014-02/msg00531.html
You have to delete the database at
/etc/rebase.db* and do in a "ash" windows :
peflags * -d 1
rebaseall
It works for me on 2 servers.
I solved this problem by restarting my computer. Probably installed a driver update and kept using sleep instead of shutting down.
Experienced the same issue when loading Cygwin with cygiconv-2.dll forking and not loading successfully in the Cygwin terminal, but after turning off my AntiVirus (it was specifically Ad-aware), the issue resolved, and Cygwin worked properly.
In case you are using babun's Cygwin, after rebaseall, try launching Cygwin by executing .babun\cygwin\cygwin.bat in a Windows command prompt or Windows explorer.
This works for me (while launching babun's default console - mintty results in fork error).
I had the error on win10 and i was trying to rebase to c: before install.
then i saw that the installer was installing it instead to c:/Users/myuser
so i was coping all files from c:/Users/myuser to c:.badun
and then restart plus open badun.bat
not shure if this was wise its now duplicated XD... but then it worked again.
Rebaseing didn't help in my case. In addition to what other people suggested, I noticed that reducing the length of PATH environment variable fixed the issue for me (and for other people as well as can be seen from this answer).
This issue is intermittent in nature & I found this issue when there is network is too slow to connect to remote machine on AWS.... I have Shell script that runs through Gitbash shell & it connects to AWS EC2 instance with ssh..... Most of the time, it ran correctly but 2 out 100 times it get into this issue bash: fork: retry: Resource temporarily unavailable .... Killing the MSYS2 terminal from task manager helps to overcome with this issue....
Negative side is you need to run the scripts from the beginning...
I had the same issue on Windows 10 and the mobaxterm app (which uses cygwin) and I tried all of answers listed here however for me, the solution was to simply delete the "CryptoPro CSP" application.
I started facing this problem after upgrading to windows 10. As of now I do not see that any of the above method working.
What I am noticing is that if you start cygwin with admin right (right click and say "run as admin") then it works fine.
Or you open cmd as administrator and then launch cygwin from there, then also it runs fine.
Just reinstall cygwin and select TCL and activate EXPECT
I've encountered an error when running unit tests. If I Debug the unit tests vstest.executionengine.x86.exe runs, then closes when the tests pass.
If I just run the tests (Even if the test is as simple as just creating a new list, with no asserts) vstest.executionengine.x86.exe doesn't close and stays running in task manager.
This is causing an issue for me when it comes to writing more complicated tests that include removing files / cleaning up sqllite databases.
Any help would be appreciated.
EDIT :
Steps to reproduce :
Create New Unit Test Project
Debug Unit Tests - vstest.executionengine.x86 opens and closes, test passes.
Run Unit Tests - vstest.executionengine.x86 opens and stays open
This is by design.
The vstest.executionengine.exe is restarted only when we detect a change in the configuration between two consecutive test runs. This helps ensure we aren't taking a perf hit on process restarts unnecessarily.
Product Update
With VS2013 we have a new menu item under Test -> Test Settings called "Keep Test Execution Engine Running". You can uncheck this to opt out of the default behavior.
I worked around this by using the following as a pre-build event on the affected test projects:
for 64-bit:
taskkill /F /IM vstest.executionengine.exe /FI "MEMUSAGE gt 1"
or for 32-bit:
taskkill /F /IM vstest.executionengine.x86.exe /FI "MEMUSAGE gt 1"
This silently kills the execution engine before building the test project. The /FI "MEMUSAGE gt 1" stops the command (and therefore the build) from failing if the execution engine isn't running.
For what its worth, I ran into this same situation and it turned out that I had a test that did not properly clean up all of its resources. In my specific case there was a background thread with a network connection open that did not get closed before the test exited. Not sure why exiting the test did not close this for me, but when i fixed my code to properly dispose of all the resources I opened, everything worked as expected. I did not have to add any hacks to kill the vstest.executionengine.exe, nor did I have to opt out of Test -> Test Settings -> Keep Test Execution Engine Running
I had this issue when running test using Resharper's test runner which doesn't seem to respect the Test-->Test Settings-->Keep Test Execution Engine Running setting. In my case it was causing the build to fail with the following error:
warning MSB3026: Could not copy "...\SQLite.Interop.dll" to "bin\Debug\x86\SQLite.Interop.dll". Beginning retry 10 in 1000ms. The process cannot access the file 'bin\Debug\x86\SQLite.Interop.dll' because it is being used by another process.
Adding a pre-build event to the test project as #HappyCat suggested worked for me. I also needed to wrap it in an if statement to prevent it from running on the build server and interfering with other jobs.
if $(ConfigurationName) == Debug (
echo "attempting to kill vstest to prevent access denied on sqlite.interop.dll"
taskkill /F /IM vstest.executionengine.x86.exe /FI "MEMUSAGE gt 1"
)
I know this is old but I thought I'd throw in something I just discovered.
A test I was running had some objects in it that implemented IDisposable, so the code analysis told me so should my test class. It took a while to realize it, but when this.Dispose(); was getting called on the implementation of that interface when I put it on my test class, it was actually throwing a StackOverflow exception. So I just yanked the interface and let CA continue to whine.
I did not need to toggle 'Keep Test Execution Engine Running'.
The easiest approach is to go to windows task manager. Look out for vstest.executionengine.exe process running in the background. Kill that process and it should work fine now.
A while ago I changed my personal operating system to linux and my development enviroment to KDevelop.
However debugging c++ projects is still not working as it should.
My KDevelop version is 4.2.2 (I installed it through package management)
Every time I hit the "debug button" the application is starting with the console message
warning: GDB: Failed to set controlling terminal: Operation not permitted and debugging functionality is not available.
Any ideas welcome.
(If you need additional information don't hesitate to ask)
I also had this problem, but I use gdb in KDevelop sparsely enough that hadn't bothered me yet. Here's my log of trying to fix it:
Grepping through the GDB 7.3.1 source code reveals that this message is printed when GDB tries to set its master TTY to a newly-created pseudo-tty (see gdb/inflow.c, lines 683-740). In particular, a call to ioctl with request TIOCSCTTY fails with a permissions error.
With this in mind, I took a look at the Linux kernel source code to see what could cause a failure. A bit of searching shows that it will eventually degenerate into a call to tiocsctty(). The comment from tiocsctty that is important here:
/*
* The process must be a session leader and
* not have a controlling tty already.
*/
Since the only other reason it can fail with EPERM is if the tty that GDB creates is actually a controlling tty for another process (which seems highly unlikely), I thought it reasonable to assume that GDB is not a session leader. Fair enough, it's launched by KDevelop after all!
So: I tried not launching the GDB session in an external terminal, and it works. Problem narrowed down.
Originally, the external terminal line was set to konsole --noclose --workdir %workdir -e %exe. Changing this to terminator -e %exe made a slight difference: KDevelop warned me that
GDB cannot use the tty* or pty* devices.
Check the settings on /dev/tty* and /dev/pty*
As root you may need to "chmod ug+rw" tty* and pty* devices and/or add the user to the tty group using "usermod -G tty username".
I checked my permissions; my user was part of the tty group and all relevant files were readable and writable.
Grepping through the KDevelop source code reveals how KDevelop actually sets up the terminal. It runs the shell script
tty > FIFO_PATH ; trap "" INT QUIT TSTP ; exec<&-; exec>&-; while :; do sleep 3600;done
and then sets up GDB to use the terminal device it reads from FIFO_PATH. (My name, by the way, not the one that KDevelop uses.) The problem (as best I can tell) is that gdb is not launched as a child of the shell script, and thus cannot use it as its main tty.
I'm not feeling up to patching KDevelop to make this work properly as of yet (or finding what actually caused this to stop working in the first place . . .), so the best I can suggest at the moment is to simply not use an external terminal for debugging purposes.
Good luck! I'll update if I find anything useful.
As Arthur Zennig said, for more information, you need to do something
Firstly, you need to create the Terminal profile
Secondly, open Launch Configurations, fill info such as the image below
Good luck!
In case you got the error:
"Can't receive konsole tty/pty. Check that konsole is actually a
terminal and that it accepts these arguments"
RUN > CONFIGURE LAUCHERS > (See picture below. My project name was "loops")
What worked for me was to uncheck checkbox "Use External Terminal". Found the in the "Compiled Binaries" Tab.