46a1356219
Some more (very obscure) conditions where a suspension or program end might embed the shell prompt within top output have been uncovered beyond the 2 already known. We had already covered some suspend/end contingencies: 1. the users were using the 'fields management' screen 2. the users were prompted for any line oriented input However, there remained some situations where ^Z or ^C could still produce a misplaced cursor + shell prompt: 3. the 'g' command while waiting for the window choice 4. the 'W' command if about to overwrite an old rcfile 5. the '=' command when exploiting the Inspect feature 6. the period during which any error message was shown But, even when all those bases are covered there still remains a remote possibility that such interrupts will occur during a top repaint cycle. So rather than throw yet more code at these self-inflicted problems perhaps it is better if we just throw in the proverbial towel. Thus, I'll take the only sane approach and restore the results expected ever since top's inception and before scrollback buffers entered the picture. Namely, with a ^Z or ^C the cursor will be placed on the final screen row. That usually means it will immediately follow the last output line but it may follow many blank lines if the user interrupts top when *not* on the main screen. Reference(s): . expanded repositioning (for line oriented input) commit 33104a2bcc321495107d72e4cfee4090b1d90f76 . introduced repositioning (for fields management) commit 5c974ff44da4fbbb9170dd15bdd81555c62c31a9 . scrollback buffers (the cursor handling changes) commit dedaf6e1a81738ff08ee8e8523871e12f555ad6d Signed-off-by: Jim Warner <james.warner@comcast.net>
COMPATIBILITY
This code is intended for use with Linux 2.6.xx, 3.x and
hopefully all future kernels.
INSTALLATION
If you are using git version of the project you need extra step.
./autogen.sh
After that, and everyone using .tar.xz version of procps-ng, can
do normal build. Read './configure --help' to select options for
your needs.
./configure
make
make install
If you have DejaGNU installed you can run optional test suite.
make check
HOW TO CONTRIBUTE
See Documentation/BUGS file.
PACKAGING
If you are a downstream maintainer (packager) for a Linux
distribution, please avoid causing troubles. This section
applies to you.
Avoid maintaining distribution specific patches. Send your
patches to upstream, where they are at least reviewed, if not
included.
Please forward bug reports. If your bug database is public and
busy enough to bother with, please make this known. Follow
Debian's lead in making the bug database easy to comment on via
email without need for an account.
For normal packages, ensure that you do not add debugging flags
to the CFLAGS variable.
UPSTREAM & BUG REPORTS
procps-ng <procps@freelists.org>