Gosh, all this time we used indents of 4 spaces, not 3
spaces which were always the top standard indentation.
[ and we made our 'utf8_embody' a little more robust ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
The top man page was changed back on 10/20/15, in that
commit shown below. There, freelists.org was suggested
as the bug reports recipient. But, the program was not
changed from the original Debian bug reports approach.
Reference(s):
commit b1f7b2a509
Signed-off-by: Jim Warner <james.warner@comcast.net>
This patch better exploits short-circuit evaluation in
two 'if' tests. In every case, the 1st of 2 conditions
in each 'if' test must take place but it always proves
true with each iteration for 1 of the 'if' statements.
Thus, the 2nd condition will have to be evaluated too.
By reordering 2 tests in each 'if', we can ensure that
the 2nd condition will then be tested much less often.
Signed-off-by: Jim Warner <james.warner@comcast.net>
Upon reflection, there was absolutely no justification
for that call to strlen() which was then followed by a
call to snprintf(). The latter provides this needed #.
[ also make that 'delta' value a little more visible ]
[ instead of hiding it at the end of a its code line ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Now that top can properly handle translated multi-byte
strings I've been reviewing translated efforts so far,
and weighing output against related translation hints.
In one case, a translation hint has not kept pace with
the current program state. In addition, that same hint
could be expanded to suggest translation alternatives.
[ frankly I never expected the translators to tackle ]
[ some of those 'special' strings. the task appeared ]
[ just too daunting. but they have done a great job! ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Before top was modified to exploit the new <pids> api,
there was protection in that task_show() makeVAR macro
to avoid multiple evaluation of this macro's argument.
But, in that commit referenced below, such a safeguard
was lost. This commit simply restores proper behavior.
Reference(s);
. offending change
commit 77dc22b910
Signed-off-by: Jim Warner <james.warner@comcast.net>
Well, for some strange unknown reason it happened in a
commit referenced below. But this patch reverts it and
puts this newlib scale_mem on par with the master guy.
[ a little more research reveals that it should have ]
[ been reverted in the 2nd commit shown. that's when ]
[ types were fixed after XTRA_PROCPS_DEBUG was used. ]
Reference(s):
. when 'unsigned' qualifier lost
commit 911083bf76
. when 'unsigned' qualifier not restored
commit 105058ae2d
. when XTRA_PROCPS_DEBUG validation introduced
commit e3270d463d
Signed-off-by: Jim Warner <james.warner@comcast.net>
With the help of our Swedish translator, hopefully the
final buglet has now been vanquished in the multi-byte
translation support. This one was a real nasty bugger.
Although it didn't occur with every terminal emulator,
occasionally random text lines were being chopped off.
As it turns out, those terminals were blameless. There
were two separate places in top's show_special routine
where potential multi-byte sequences were inadequately
addressed. Solution: exploit existing utf-8 functions.
[ it also became apparent that the translation hints ]
[ in the top_nls module were deficient. so a special ]
[ caution was added regarding the final line of txt. ]
Reference(s):
https://gitlab.com/procps-ng/procps/issues/68
Signed-off-by: Jim Warner <james.warner@comcast.net>
Unlike the insp_mkrow_raw function the insp_mkrow_utf8
routine is not equipped to print non-ctl, non-printing
characters like '<7f>'. However, technically that very
value currently slips through the cracks. So with this
patch top will now print a space in the unlikely event
a character with the value of 127 is ever encountered.
Signed-off-by: Jim Warner <james.warner@comcast.net>
Since all the necessary utf-8 plumbing is now in place
this commit will extend multi-byte support to user and
group names. Now top will be on a par with the ps guy.
[ plus, it's also my way of showing appreciation for ]
[ all those investments silently made by translators ]
Reference(s):
https://gitlab.com/procps-ng/procps/issues/68
Signed-off-by: Jim Warner <james.warner@comcast.net>
Translatable column headers are supposed to be limited
to no more than 7 characters, even though some columns
are wider than that or even variable width. That value
of 7 is dictated by the Fields Management screen which
will otherwise truncate a column header longer than 7.
Our new utf-8 support did not adequately deal with the
potential need for truncation of column headers should
that limit of 7 be exceeded. This patch corrects that.
[ a few comments were also tweaked just a little bit ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
The previous commit implemented multi-byte support for
the basic top user interaction and display provisions.
This commit completes multi-byte support by addressing
that 'Inspect Other Output' feature (the 'Y' command).
Few people probably exploit this very powerful feature
which allows the perusing of any file or piped output.
And even if nobody uses 'Y', someone will stumble over
it on the help screen and try it out. Assuming top was
not built with INSP_OFFDEMO defined, they'll end up on
the screen our translators have faithfully translated.
Without this patch, such a screen would display with a
bunch of 'unprintable' characters which will then show
in the standard (less-like) way as: '^A', '<C3>', etc.
In other words, those poor screens will be a big mess!
[ this program can even display an executable binary ]
[ while at that same time supporting Find/Find Next. ]
[ imagine, a file with no guarantee of real strings! ]
[ just try a Find using less with such binary files. ]
With this commit, the translated 'Y' demo screens will
now be properly shown, providing no invalid multi-byte
characters have been detected. Should that be the case
then they'll be displayed in that less-like way above.
And, if users go on to fully exploit this 'Y' command,
there is a good chance that a file or pipe might yield
output in a utf-8 multi-byte form. Should that be true
such output will thus be handled appropriately by top.
[ in many respects, this change was more challenging ]
[ than the basic support within the previous commit. ]
[ story of my life: least used = most effort needed. ]
Many thanks to our procps-ng translators which enabled
a proper test of these changed 'Y' command provisions:
. Vietnamese: Trần Ngọc Quân
. Polish: Jakub Bogusz
. German: Mario Blättermann
. French: Frédéric Marchal, Stéphane Aulery
[ and my sincerest apologies too, for my negligence! ]
Reference(s):
https://gitlab.com/procps-ng/procps/issues/68
Signed-off-by: Jim Warner <james.warner@comcast.net>
When this project first began implementing translation
support nearly 6 years ago, we overcame many 'gettext'
obstacles and limitations. And, of course, there were
not any actual translations at the time so our testing
was quite limited plus, in many cases, only simulated.
None of that, however, can justify or excuse the total
lack of attention to top's approach to NLS, especially
since some actual translations have existed for years.
When the issue referenced below was raised, I suffered
immediate feelings of anxiety, doubt and pending doom.
This was mostly because top strives to avoid line wrap
at all costs and that did not bode well for multi-byte
translated strings, using several bytes per character.
I was also concerned over possible performance impact,
assuming it was even possible to properly handle utf8.
But, after wrestling with the problem for several days
those initial feelings have now been replaced by guilt
over any trouble I initially caused those translators.
One can only imagine how frustrating it must have been
after the translation effort to then see top display a
misaligned column header and fields management page or
truncated screens like those of help or color mapping.
------------------------------------------------------
Ok, with that off my chest let's review these changes,
now that top properly handles UTF8 multi-byte strings.
. Performance - virtually all of this newly added cost
for multi-byte support is incurred during interactions
with the user. So, performance is not really an issue.
The one occasion when performance is impacted is found
during 'summary_show()' processing, due to an addition
of one new call to 'utf8_delta()' in 'show_special()'.
. Extra Wide Characters - I have not yet and may never
figure out a way to support languages like zh_CN where
the characters can be wider than most other languages.
. Translated User Name - at some future point we could
implement translation of user names. But as the author
of the issue acknowledged such names are non-standard.
Thus task display still incurs no new multi-byte costs
beyond those already incurred in that escape.c module.
For raising the issue I extend my sincerest thanks to:
Göran Uddeborg
Reference(s):
https://gitlab.com/procps-ng/procps/issues/68
Signed-off-by: Jim Warner <james.warner@comcast.net>
The 'N_fmt' and 'N_txt' macros are interchangeable and
just highlight the 2 str types found in Norm_nlstable.
The change in this patch (strictly cosmetic) was found
during the coding for what will be the next 2 commits.
It has not been squashed into either of those so as to
not muddy up the waters for what was a major refactor.
Signed-off-by: Jim Warner <james.warner@comcast.net>
Until this patch, top falsely assumed that there would
always be some (small) amount of physical memory after
subtracting 'used' and 'available' from the total. But
as the issue referenced below attests, a sum of 'used'
and 'available' might exceed that total memory amount.
I'm not sure if this is a problem with our calculation
of the 'used' amount, a flaw in the kernel 'available'
algorithms or some other reason I cannot even imagine.
Anyway, this patch protects against such a contingency
through the following single line addition of new code
. if (pct_used + pct_misc > 100.0 || pct_misc < 0) ...
The check for less than zero is not actually necessary
as long as the source numbers remain unsigned. However
should they ever become signed, we'll have protection.
[ Most of the changes in this commit simply separate ]
[ a variable's definition from its associated logic. ]
Reference(s):
https://gitlab.com/procps-ng/procps/issues/64
Signed-off-by: Jim Warner <james.warner@comcast.net>
For the past 3 years top has fully honored that locale
LC_NUMERIC setting which impacts his refresh interval.
For the past nearly 5 years top has saved that refresh
value in a locale independent form in his config file.
With this commit we'll intentionally break top so that
a comma or period will be accepted for the radix point
regardless of what that LC_NUMERIC may have suggested.
The current locale LC_NUMERIC will, however, determine
how the delay interval is displayed in the 'd' prompt.
[ This position is better than the approach employed ]
[ by those coreutils 'sleep' and 'timeout' programs. ]
[ Both claim to permit floating point arguments. But ]
[ neither one will accept the comma separator should ]
[ the locale be a country that in fact uses a comma. ]
Reference(s):
https://gitlab.com/procps-ng/procps/merge_requests/50
Prototyped by: Jan Rybar <jrybar@redhat.com>
Signed-off-by: Jim Warner <james.warner@comcast.net>
There was a time when the PROCPS_PIDS_noop represented
the highest valued enumerator. Therefore if one wished
to prime an array consisting of pids_result structures
with this specific item a loop would have been needed.
Now that this enum is the first one, with the value of
zero, we can avoid avoid such a loop with just calloc.
But just in case, we'll use an 'if' to guarantee zero.
[ and the nice thing is, since the value is known at ]
[ compile time, that 'if' test plus subordinate loop ]
[ can be discarded by the compiler as long as it's 0 ]
Reference(s):
. <pids> introduced (PIDS_noop > 0)
commit 7e6a371d8a
. top employs PIDS_noop at 'new' time
commit f1bd82ff07
. <pids> relocated PIDS_noop (PIDS_noop == 0)
commit e7585992d9
Signed-off-by: Jim Warner <james.warner@comcast.net>
Ok, I admit it. I'm now tired of cleaning up after me.
This is the 3rd related tweak after that '-1' argument
was originally introduced. And with this patch we will
once again properly honor the '-o' and '-u|U' switches
without a need to be followed by an additional switch.
[ one can follow my unfortunate trail of alterations ]
[ beginning with my most recent fix referenced below ]
Reference(s):
commit e3bad0687d
Signed-off-by: Jim Warner <james.warner@comcast.net>
That preceding commit corrected a little mismanagement
regarding the MEMINFO_MEM_CACHED enumerator, which was
used in the following programs: free, top plus vmstat.
This patch simply adapts those programs to use the new
MEMINFO_MEM_CACHED_ALL enumerator, which reflects both
the 'Cached' plus 'SReclaimable' values they expected.
Signed-off-by: Jim Warner <james.warner@comcast.net>
With the introduction of a new '1' command line toggle
I have gone and broken a provision of the '-p' command
line switch (pids monitoring). Multiple pids could not
be specified through the use of comma delimited lists.
Thus, this commit simply corrects that newly added bug
which was born in the 'adjustment' commit shown below.
Reference(s):
. adjustment to '-1' implementation
commit 3e5c950a5e
Signed-off-by: Jim Warner <james.warner@comcast.net>
There exists the possibility that a 'putp' call can be
issued before the 'setupterm' invocation has occurred,
as is reflected in a bugzilla report referenced below.
Strangely, such a SEGV isn't always triggered as logic
would suggest it ought to be. I experienced a fault in
these environments with the associated curses version:
. archlinux, procps-ng 3.3.12, ncurses 6.0.20170429
. fedora-25, procps-ng 3.3.10, ncurses 6.0.20160709
. opensuse-42.2, procps-ng 3.3.9, ncurses 5.9.20140201
. gentoo, procps-ng 3.3.12, ncurses 6.0.20150808
. slackw-14.2, procps-ng 3.3.12, ncurses 6.0.20160910
Whereas under these environments there was no problem:
. ubuntu-17.04, procps-ng 3.3.12, ncurses 6.0.20160625
. debian-test, procps-ng 3.3.12, ncurses 6.0.20161126
. mageia-5.1, procps-ng 3.3.9, ncurses 5.9.20140323
[ as an aside, the expected result in the bug report ]
[ is incorrect and should mention the '1' parameter. ]
[ however, until release 3.3.13 when the '1' becomes ]
[ a valid switch, numbers are not detected when used ]
[ with any switch which doesn't require an argument. ]
[ you're welcome to treat that as a separate bugglet ]
Reference(s):
https://bugzilla.redhat.com/show_bug.cgi?id=1450429
Signed-off-by: Jim Warner <james.warner@comcast.net>
This program has always tried to maintain an extermely
robust command line parsing procedure, far more robust
that what's available with the getopt stuff. But, with
the introduction of our first numeric switch it should
have been made even more robust than, in fact, it was.
This commit will now accomplish such a desirable goal.
Reference(s):
. added '1' command line switch
commit 5e708c5db7
Signed-off-by: Jim Warner <james.warner@comcast.net>
All of top's display was designed to fit into an 80x24
terminal. This includes the help screens plus both the
Summary and Task Areas, assuming no saved config file.
With release 3.3.10, the startup defaults were changed
assuming ./configure --disable-modern-top wasn't used.
This was done in the hope of introducing some users to
unknown capabilities such as colors, forest view, etc.
The purpose of this commit is to coax a few more users
into possibly exploring another capability: scrolling.
We do so by tweaking the default startup display so as
to show full command lines. Now, when things no longer
fit in 80x24, horizontal scrolling might be exploited.
[ of course, this can be reversed with the -c switch ]
[ this patch has been adapted from the master branch ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
If built without ./configure --disable-modern-top, the
program displays each cpu individually providing there
is sufficient vertical screen real estate. For massive
SMP environments this will necessitate use of a config
file where the cpu summary toggle ('1') could be saved
via the 'W' command. But, an rcfile may not be viable.
So this commit introduces a '1' command line switch to
emulate exactly the effects of the interactive toggle.
And since it is our first numeric switch some existing
parsing logic had to be changed slightly. Such changes
are, in truth, an improvement. For example, instead of
seeing "inappropriate '2'" with ./top -2 we'll now see
the vastly more appropriate error "unknown option '2'.
References(s):
https://gitlab.com/procps-ng/procps/issues/55
[ this patch has been adapted from the master branch ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
In their 3.2.7 version of top, Redhat introduced an -M
switch to automatically scale Summary Area memory data
to avoid truncation (and the resulting '+' indicator).
The procps-ng top does not employ suffixes with memory
data nor does it allow for different scaling with each
separate value. Rather, scaling appears at line start.
If built without ./configure --disable-modern-top, the
Summary Area memory will be scaled at GiB which should
lessen chance of truncation. Otherwise KiB was used to
reflect such memory, increasing the truncation chance.
And while 'W' can be used to preserve some appropriate
scaling value, there are arguments against such rcfile
approaches as cited in the issue and bug report below.
So this commit will bump the Summary Area memory scale
factor from KiB to MiB when using --disable-modern-top
as a concession to that Redhat bug report noted below.
And it also introduces a new command line switch which
can force any desired scaling regardless of the rcfile
or which ./configure option might have been specified.
[ for top's help text we'll show 'E' as if it were a ]
[ switch without arguments in order to keep the help ]
[ text displayable without wrap in an 80x24 terminal ]
[ the man page, however, will show all k-e arguments ]
Reference(s):
https://gitlab.com/procps-ng/procps/issues/53https://bugzilla.redhat.com/show_bug.cgi?id=1034466
[ this patch has been adapted from the master branch ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
After much reflection I've come to the conclusion that
displaying 3 decimal places (usually) when memory data
had been scaled is no longer optimal with today's ever
increasing amounts. And given that not all task memory
fields are the same widths, inconsistencies can easily
arise as illustrated and discussed in the issue below.
Instead of unilaterally reducing the number of decimal
places, this commit will sneak in such a change via an
existing configure option that was very likely unused.
The former 'disable-wide-memory' option has now become
'enable-wide-memory', which can be used if the current
behavior (3 decimal places) is preferred. Without that
option, whenever memory is scaled beyond KiB, just one
decimal place will be shown in Summary and Task areas.
And Task area field width will no longer be changed by
this revised configure option. Instead, all such field
widths will now be fixed at the former maximum values.
Reference(s):
https://gitlab.com/procps-ng/procps/issues/50
[ this patch has been adapted from the master branch ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
This patch adapts a master branch commit to our newlib
branch. Shown below was that original commit msg text.
------------------------------------------------------
top: Add unobtrusive XDG support
By default the file HOME/.toprc will be prefered. This ensures there
should be minimal breakage even if this file is later created by some
other means. Otherwise we will follow the new behaviour described by
the XDG Base Directory Specification:
If the XDG_CONFIG_HOME environment variable is available we will attempt
to use this as XDG_CONFIG_HOME/procps/toprc otherwise we will fall-back
to HOME/.config/procps/toprc instead.
Signed-off-by: Earnestly <zibeon@gmail.com>
------------------------------------------------------
Reference(s):
. master branch original
commit 0a0f7d60e309c13c8a399bc2187bed6e3e156b43
. discussion thread
https://gitlab.com/procps-ng/procps/merge_requests/38
Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit just exploits those new library provisions
for tic categories, introduced in the preceding patch,
which had been prompted by the issue referenced below.
[ ok it also corrects the top graph for system usage ]
[ since this turkey failed to include tics for these ]
[ two interrupts: STAT_TIC_IRQ and STAT_TIC_SOFTIRQ. ]
Reference(s):
https://gitlab.com/procps-ng/procps/issues/48
Signed-off-by: Jim Warner <james.warner@comcast.net>
In the commit referenced below, in addition to several
tweaks to comments, 3 fields were no longer assured of
being present in the results stacks. However, 2 of the
3 fields might, in fact, be required even if they were
not currently being displayed in any of the 4 windows.
The PIDS_CMD is used in two separate 'Inspect' headers
('Y' command) and the PIDS_ID_EUID is required if that
'User Filter' ('u' or 'U' command) was being employed.
That latter field's inclusion will be made conditional
but the former field must be unconditionally included.
( for old top, PIDS_CMD would have always been there )
Reference(s):
commit 4e4debda9b
Signed-off-by: Jim Warner <james.warner@comcast.net>
It makes no sense to begin our tracked nested level at
'1' then later require a '1' to be subtracted from the
level as artwork and indentation is added for display.
By beginning such tracked levels at zero, we can avoid
the need to adjust it & use it directly in a snprintf.
Signed-off-by: Jim Warner <james.warner@comcast.net>
It would have been nice to remove this 'nDRT' guy from
the fields management screen and man document as well.
But, while this version of top could be made to handle
an older rcfile, the reverse would not have been true.
Besides, it's been zero for so long already we'll just
include a 'deprecated' note in top's man page for now.
[ the 'nTH ' field number was corrected in there too ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Since our library is responsible for NUMA support, and
since the top program already accommodates the lack of
NUMA data, there's no reason that #define NUMA_DISABLE
need be explicitly referenced in the top source files.
Ergo, this commit just eliminates all such references.
Now, top will rely only on procps_stat_reap() results.
Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit just brings some comments plus identifiers
into agreement with the current newlib implementation.
Signed-off-by: Jim Warner <james.warner@comcast.net>
After discovering those terrible costs associated with
/proc/status vs. /proc/stat, our library changed so as
to favor the latter if a field could be met by either.
Well, low-and-behold, this top program had chosen some
item enumerators that needlessly caused 'status' to be
accessed when 'statm' could be used instead. And while
top's needs require conversion from pages to KiB, that
is still far less costly than that damn 'status' file.
[ this was found when comparing newlib top against a ]
[ 3.2.8 ancient top since the current master top was ]
[ suffering from the exact same 'status' deficiency. ]
[ and, no way was top-3.2.8 going to beat newlib top ]
[ by 50% - we'll allow only a 1-10% occasional loss! ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
After doing some profiling and timings, then comparing
newlib top to the existing 3.3.12 version, I concluded
top should avoid stack results unless actually needed.
Not only will stack depth be kept to minimums, but the
new library can save some otherwise wasted pathlength.
Signed-off-by: Jim Warner <james.warner@comcast.net>
With this patch, top has ensured that base library VAL
macros are never found inside function bodies. Rather,
they are used solely to support global derived macros.
Program functions remain free to further tailor macros
but they'll now always be based on the top derivative.
Signed-off-by: Jim Warner <james.warner@comcast.net>
This patch is a response to errors found in those type
references now that our library allows for validation.
In two cases, former assignments to a result structure
could no longer employ that VAL macro if validation is
active. Thus, direct reference to some stack was used.
For the record, those instances were to be found here:
. ps - uses PIDS_extra to store the cooked pcpu values
. top - uses PIDS_extra to store the forest view level
Signed-off-by: Jim Warner <james.warner@comcast.net>
Since the VAL macro now requires a 4th parameter, this
commit simply adds the 'info' context structure to it.
In some cases, that context structure needed to become
global, since it was referenced in multiple functions.
Signed-off-by: Jim Warner <james.warner@comcast.net>
This patch is the response to changes in <pids> types.
These additional modifications were also incorporated.
. ps -------------------------------------------------
pr_wname was eliminated as it just duplicated pr_wchan
pr_wchan referenced WCHAN_ADDR in error, vs WCHAN_NAME
pr_nwchan referenced WCHAN_NAME, not proper WCHAN_ADDR
Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit provides for raising the total displayable
fields from its current 70 to 86. It also bumps the id
in an rcfile representing the version from 'i' to 'j'.
The increase in number of fields will make sharing the
rcfile with an older top, once it's saved, impossible.
These changes are being done via a #define rather than
hard coded so any such sharing will still be possible.
Signed-off-by: Jim Warner <james.warner@comcast.net>
With this patch we've completed a progression toward a
standard approach to naming conventions which follows:
* Only functions will begin with that 'procps_' prefix
. ........................................... examples
. procps_vmstat_get ()
. procps_diskstats_select ()
- ----------------------------------------------------
* Exposed structures begin with the module/header name
. ........................................... examples
. struct pids_info
. struct stat_reaped
- ----------------------------------------------------
* Item enumerators begin like structs, but capitalized
. ........................................... examples
. VMSTAT_COMPACT_FAIL
. MEMINFO_DELTA_ACTIVE
[ slabinfo varies slightly due to some item variants ]
. SLABINFO_extra
. SLABS_SIZE_ACTIVE
. SLABNODE_OBJS_PER_SLAB
[ could cure with a prefix of SLABINFO, but too long ]
- ----------------------------------------------------
* Other enumerators work exactly like item enumerators
. ........................................... examples
. PIDS_SORT_ASCEND
. STAT_REAP_CPUS_AND_NODES
- ----------------------------------------------------
* Macros and constants begin just like the enumerators
. ........................................... examples
. #define SLABINFO_GET
. #define DISKSTATS_TYPE_DISK
- ----------------------------------------------------
Signed-off-by: Jim Warner <james.warner@comcast.net>
