The library does not weed out potential duplicate PID
values when sampling with the PROC_PID flag. This was
treated as merely an inefficiency by top and safely
ignored prior to the advent of forest view mode.
Now, however, if the -p switch duplicates certain PIDs,
*and* those processes have no PPID, *and* top's forest
view mode is active or activated, then a SEGV will be
generated (and caught).
This rather obscure buglet is thus limited to pid #1
(/sbin/init) and pid #2 (kthreadd). With any other
duplicate PIDs the worse case scenario was a '?' in
place of the usual forest view artwork.
This commit silently ignores any duplicate process ids
and thereby avoids the potential segmemtation fault.
Signed-off-by: Jim Warner <james.warner@comcast.net>
The problem is that in ./proc/sysinfo.c uptime(), it is not
considered that the "savelocale" string is overwritten by the
subsequent call to setlocale(). Hence restoring the locale later on
won't work this way. "savelocale" ought to be a copy of the string
pointed to by setlocale()'s return-value.
Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=548711
Backported-by: Sami Kerola <kerolasa@iki.fi>
The sniplet below resulted not to be sorted correctly.
for i in $(seq 1 50); do ls -R /usr &>/dev/null 2>&1 & done
sleep 1; ps -e --sort=pcpu -o pcpu,comm=; pkill ls
Issue is present since older versions of procps (3.2.7/3.2.8).
Reference: http://www.freelists.org/post/procps/top-incorrect-sort,2
Reported-by: Jaromir Capik <jcapik@redhat.com>
Backported-by: Sami Kerola <kerolasa@iki.fi>
The 'make distcheck' failed with.
../../ps/display.c:39:34: fatal error: ../include/fileutils.h: No such file or directory
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Fixes the following error in configure stage.
configure: error: cannot run test program while cross compiling
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
The testsuite failed on archlinux which has sleep in /usr/bin/
instead of /bin/ directory. This commit will make expect to use
$PATH to determine where sleep is.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
All warnings where about unnecessary quoting. The scriptlet
below will tell what was wrong.
for I in ./top/top.1 ./ps/ps.1 ./*.[0-9]; do
echo "== $I warnings =="
man --warnings=all $I > /dev/null
done
This should probably be turned to 'make check' script.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Since its inception top has provided for monitoring
only specific process ids via the -p command line
switch. This provision has also embraced the top
process itself, even though its pid wasn't yet known.
This commit simply documents the special zero value,
which would otherwise be an invalid process id.
Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit simply:
. adds some missing top acknowledgements
. reorganizes 3.3.3 text by program and bug number
. eliminates one instance of trailing whitespace
Signed-off-by: Jim Warner <james.warner@comcast.net>
In attempting to keep at least one task visible when
scrolling vertically, a negative task index would be
produced when pid monitoring was in effect and no
matching pid was found.
Since there were already other conditions where no
task might displayed, the faulty source line has been
removed.
Bug-Debian: http://bugs.debian.org/668335
Signed-off-by: Jim Warner <james.warner@comcast.net>
If stream status is not checked at the end of execution below problem
would not report error, or non-zero exit code. The uptime is just an
example same was true with all commands of the project.
$ uptime >&- ; echo $?
uptime: write error: Bad file descriptor
1
$ uptime >/dev/full ; echo $?
uptime: write error: No space left on device
1
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Patch supplied by Kent R. Spillner <kspillner@acm.org>.
Previous watch -g would do the following:
unchanged screen (wait)
changed screen (wait)
(exit)
Now it exits right after the screen changes.
Both skill and snice are are mentioned in manual page to be 'obsolete
and unportable'. This commit discourages distributors to keep these
commands part of default system.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Commit 991b8a94f0 took use
getopt_long(), which means the code that is related to earlier
selfmade argument parsing is unnecessary.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
The main() was starting to be quite long with deep indents. Both
signs of clean up being welcome change.
FIXME: The comment also changes -g option to exit immediately,
when screen contents change. This should be separated commit,
e.g. the stuff is not ready to be merged.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
When top introduced true line input editing, the
ability to paste keystrokes was lost. This remains
a necessary evil so that top has an opportunity to
translate cursor motion keystrokes into terminfo
escapes during line input. Motion keys themselves,
of course, can never be pasted.
If pasting ever became more important than input
editing, then native termios support should have been
available via a define called TERMIOS_ONLY. But a
recent commit, eliminating what was thought to be
obsolete logic, rendered the alternate linein()
function virtually useless.
Similar to top-3.2.8, when native termios input is
functional, these abberations can be experienced:
. cursor motion keys will appear as escapes
. excessive input can cause line wraps
. ^Z during i/p is not be honored until <Enter>
. SIGWINCH during i/p corrupts screen temporarily
In hindsight, it now seems that the ability to paste
keystrokes may indeed outweigh any shortcomings of
native termios support. This is especially true if
one is preparing to search ('L') for some lengthy
process command line contined in the clipboard.
Thus, this patch fixes the alternate linein() function
and changes TERMIOS_ONLY to TERMIO_PROXY so that top
now defaults to using native termios input. In turn,
that will restore the paste keystrokes capability.
Reference(s):
commit: 045538e01b
Reported by: sergio <mailbox@sergio.spb.ru>
Bug-Debian: http://bugs.debian.org/663334
Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit brings the few remaining occurances
of kB, etc. into line with the IEC binary naming
standard.
Comments containing any such references have been
left unchanged.
Reference(s):
commit 2fc3f15770
Signed-off-by: Jim Warner <james.warner@comcast.net>
When invoked with the --chgexit/-g options wait until we have at
least one screen of output before checking if the output changed.
Otherwise, we're comparing the initial screen of output to all
spaces, which usually isn't what we want.
Revert commit ffe5e0b08e. Restores
clean exit when falling through main loop.
Previously, watch only exited when there was an error or when
interrupted by the user. Commit 81f64657ba
added another exit condition when the watched command's output
changes, causing execution to fall out of the main loop.
With this change, watch correctly restores the terminal and returns
an exit code indicating success when invoked with the --chgexit/-g
options.
Admittedly, top referred to memory quantities in
a variety of non-standard ways. This commit brings
the program and supporting documentation into strict
compliance with IEC standard binary names.
According to wikipedia, as of 2012 this IEC standard
was still not in widespread use. However, I'm making
this change now for the anal-retentive among us.
Reference:
http://en.wikipedia.org/wiki/Megabyte
Reported by: Roman Mamedov <rm@romanrm.ru>
Bug-Debian: http://bugs.debian.org/662786
Signed-off-by: Jim Warner <james.warner@comcast.net>
Any key=value pair following the first one are dropped after
commit 81df8e2630, due to changing
from the while loop to using getopt.
Broken behavior:
sysctl net.ipv6.conf.tun0.optimistic_dad net.ipv6.conf.tun0.mc_forwarding
net.ipv6.conf.tun0.optimistic_dad = 0
Good behavior:
sysctl net.ipv6.conf.tun0.optimistic_dad net.ipv6.conf.tun0.mc_forwarding
net.ipv6.conf.tun0.optimistic_dad = 0
net.ipv6.conf.tun0.mc_forwarding = 0
Reference: http://www.freelists.org/post/procps/BUG-Commit-81df8e2-allows-only-one-keyvalue-arg
Reported-By: Sven Ulland <sveniu@opera.com>
Signed-off-by: Jim Warner <james.warner@comcast.net>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
These per instance warnings have been eliminated:
warning: range expressions in switch statements are non-standard
warning: padding struct to align 'winflags'
warning: dereferencing type-punned pointer will break strict-aliasing rules
These per instance warnings have not been addressed
since they simply trade one warning for another:
From:
warning: ISO C does not permit named variadic macros
warning: ISO C does not support the '%Lu' gnu_scanf format
To:
warning: anonymous variadic macros were introduced in C99
warning: ISO C90 does not support the 'll' gnu_scanf length modifier
Lastly, since all C compilers have supported use of
C++ style comments for the past 20 years, the top
program will never trade them for the often more
cumbersome C style comments simply to avoid this
once per source file warning:
warning: C++ style comments are not allowed in ISO C90
Signed-off-by: Jim Warner <james.warner@comcast.net>
Fix to an edge case. When user defined begining of address range to
be at between two allocations the previous allocation which ended to
that address was included to printout. After this commit one will
see only allocations that are within range definition.
$ pmap -A00007f4e0df08000,00007f4e0df08000 895
895: bash
00007f4e0dd08000 2048K ----- /lib/libreadline.so.6.2
00007f4e0df08000 8K r---- /lib/libreadline.so.6.2
total 2056K
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Before this commit header and output was not in sync if
PROCPS_FROMLEN environment variable where defined. Example of wrong
behavior is below where the last four fields which are skewed.
$ PROCPS_FROMLEN=18 w -f | cat
12:31:34 up 1:25, 1 user, load average: 0.03, 0.06, 0.06
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
sake tty1 - 11:06 1:25m 3.76s 0.00s xinit /ho[...]
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
There have been some internal changes to the library, so the revision
will be incremented for this release. There is no ABI or API changes
so its no real impact.
