Bug#427798: xterm: request for exit hook
On 2011-02-27 20:36:13 -0500, Thomas Dickey wrote:
> >>The goal is to be able to keep the xterm window open and/or to be able
> >>to save its data in the following cases:
> >> * when the subprocess has crashed (but not if it has terminated
> >> "normally");
>
> The -hold option does keep the window open.
But according to the man page, the xterm window will remain open all
the time, not just when the subprocess terminated with a non-zero
exit status.
Also, I suppose that this doesn't solve the problem when xterm is run
on a remote machine and output on the X server of the local machine:
if the remote machine shuts down or the X connection is lost (e.g.
due to a network problem), the window will disappear.
> There's nothing implemented to "save its data", though that could be
> done in principal by reusing the logic for printing the screen,
> e.g., to save the scrollback as a file.
Yes.
> The comment about "exit hook" is a little odd - xterm would either be
> configured using an option or resource to do this feature, but wouldn't
> have a good way to tell if the "subprocess has crashed".
Well, I meant that the exit hook should have access to the exit status
of the subprocess if available (the other case is when xterm terminates
abnormally, e.g. by receiving a signal like TERM or HUP or due to lost
X connection, one should also be able to save the data).
> >> * when the X connection has been lost (it is not possible to keep
> >> the xterm window open, but it should be possible to save the
> >> terminal data and do some clean-up if need be).
>
> Here, "some clean-up" is vague (I suppose that's whatever is done in the
> hypothetical script to which xterm would transfer the saved data).
Yes.
--
Vincent Lefèvre <vincent@vinc17.net> - Web: <http://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / Arénaire project (LIP, ENS-Lyon)
Reply to: