From kde-devel  Tue Jun 29 16:28:12 2010
From: Robin Atwood <robin () binro ! org>
Date: Tue, 29 Jun 2010 16:28:12 +0000
To: kde-devel
Subject: Re: Child process not killed at logout
Message-Id: <201006292328.12822.robin () binro ! org>
X-MARC-Message: https://marc.info/?l=kde-devel&m=127782900214048

On Tuesday 29 June 2010, Thomas Lübking wrote:
> QProcess::waitForFinished() has a timeout (30000ms by default), try calling
> waitForFinished(-1);
> 
> Thomas
> 
> Am Tuesday 29 June 2010 schrieb Robin Atwood:
> > I have an app which attaches a lot child processes using KProcess. When
> > the application is closed by the user, the main class destructor
> > essentially
> > 
> > issues:
> > 	myProc[k]->close();
> > 	myProc[k]->waitForFinished();
> > 
> > on each process. However, if I logout while the app is still running, the
> > child processes are left running. After perusing the KMainWindow doc, I
> > tried moving the code to "queryClose()" and also connecting to the
> > "QCoreApplication::aboutToQuit()" signal, which both failed to close the
> > processes. Note that the child processes are standard cli utilities which
> > don't have an interactive mode to send shutdown commands to. Even a
> > normal
> > 
> > use close sometimes produces the message:
> > 	QProcess: Destroyed while process is still running.
> > 
> > The doc says that session management should call "queryClose()" at logout
> > time but Qt is not waiting for it? Anybody have any insight into this?

Nice idea but unfortunately it made no difference, the processes are still 
left orphaned.

-Robin
-- 
----------------------------------------------------------------------
Robin Atwood.

"Ship me somewheres east of Suez, where the best is like the worst,
 Where there ain't no Ten Commandments an' a man can raise a thirst"
         from "Mandalay" by Rudyard Kipling
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