Commit Graph

3735 Commits

Author SHA1 Message Date
Jim Warner
a03a09ae1e top: do not add an extra line when rcfile is rewritten
When the configuration file is first written, there is
just the normal single newline which ends that rcfile.

However, when any existing rcfile was rewritten, there
was one extra newline '\n' character added at the end.
This will happen just once. The file does NOT continue
to grow with the extra blank lines always being added.

Anyway, this patch will put an end to such a practice.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-22 07:43:56 +11:00
Craig Small
7fede95f8a nls: Remove incorrect Romanian file
This is for psmisc
2022-03-21 22:01:53 +11:00
Craig Small
6744c9d257 nls: Add Romanian (ro) translation 2022-03-21 22:01:29 +11:00
Craig Small
3fb2ce456e nls: Update translation files 2022-03-21 21:55:01 +11:00
Craig Small
b800d3f1a7 build-sys: check depends on programs
For some unknown reason, make check doesn't depend on either
the check programs or the actual programs under test. This means
if you try to run make check right off the bat from a clean git
repositorty, it will fail as it won't be able to run the unbuilt
binaries.
2022-03-21 21:37:17 +11:00
Craig Small
79949b18ef build-sys: Repeat man pages into man-po Makefile
I'm not sure why this is needed, but if the dist_man_MANS
variable is not copied from the top-level Makefile down to the
man-po one then make dist from a clean archive will not work.

I'm sure someone with better automake magic than me can make
this more elegant but for now it works if a little ugly.

References:
  https://www.freelists.org/post/procps/important-newlib-patches,8
2022-03-21 21:33:11 +11:00
Jim Warner
8a5f3f7b26 top: fix initial cursor position for fields management
When we transitioned from 'char' based fields to 'int'
proper initial cursor positioning (highlight) was lost
in the 'fields_utility' function. The highlight should
appear on the current sort field. Instead, however, it
was often positioned on the first field listed or some
completely different field other than that sort field.

So this patch will restore the master branch behavior.

[ and on the assumption that a sort field is visible ]
[ we will search first for a field with the 'on' bit ]

Reference(s):
. Mar, 2022 - trade 'char' for 'int'
commit 46aa96e438

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-21 21:13:46 +11:00
Jim Warner
6c35695485 top: add more robustness to logic for reading a rcfile
At this point I don't know if the Rc.id ever carried a
value of 'b', 'c', 'd' or 'e' in a public release. But
I do know that those values ought not to be recognized
in any configuration file. Now they won't be for sure.

[ the net result is that now a user with such a file ]
[ will see the 'incompatible rcfile' message instead ]
[ of that misleading 'window entry corrupt' message. ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-21 21:13:07 +11:00
Jim Warner
255383a8cd top: do not add an extra line when rewritting a rcfile
When the configuration file is first written, there is
just the normal single newline which ends that rcfile.

However, when any existing rcfile was rewritten, there
was one extra newline '\n' character added at the end.
This will happen just once. The file does NOT continue
to grow with the extra blank lines always being added.

Anyway, this patch will put an end to such a practice.

[ along the way i fixed an unrelated whitespace oops ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-21 21:13:07 +11:00
Jim Warner
212de8cf8c top: man page now has 'UTILIZATION_C' as newest column
When %CUC was added in the commit shown below I failed
to update the man document. This fixes that oversight.

Reference(s):
commit cfa5538832

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-21 21:13:07 +11:00
Jim Warner
8269e18b3f doc: document catch-up of new scalable 'STARTED' field
[ the original newlib commit message(s) appear below ]
[ but 'cpu utilization' was not implemented to avoid ]
[ any library modifications and thus version impact! ]

------------------------------------- newlib patch ---
doc: updated with new 'start time' & 'cpu utilization'

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-15 22:13:44 +11:00
Jim Warner
ed8dbd05e7 top: squashed catch-up of new scalable 'STARTED' field
[ the original newlib commit message(s) appear below ]
[ but 'cpu utilization' was not implemented to avoid ]
[ any library modifications and thus version impact! ]

--------------------------------- newlib patch #1 ---
top: added fields for 'start time' & 'cpu utilization'

This patch will exploit some new library capabilities.

[ one will raise eyebrows, the other likely will not ]

A new 'STARTED' field was added which shows the time a
process started after system boot. As such the largest
interval represents the most recently started process.

This is the field that will likely be questioned since
it's somewhat counterintuitive. But were we to instead
use TIME_ELAPSED, the value will change with every top
refresh. This will defeat any PUFF macro optimization.

The new '%CUU' field will probably be better received.
It represents the cpu usage over the life of the task.
When a process was showing high %CPU usage, this field
can be used to determine if it's an anomaly or normal.

[ and as with %CPU, %CUU shows a '?' when running in ]
[ a namespace when /proc was mounted with subset=pid ]

---------------------------------- newlib patch #2 ---
top: tweaked the recently introduced 'STARTED' support

When the 'STARTED' field was added, the width was made
the same as the 'TIME+' field. Thus, a full time could
be shown (which then included hundredths of a second).

That kind of granularity is totally unnecessary. After
all, this column is potentially confusing enough since
it is so counterintuitive. So, this commit will reduce
the width of the field with some help from scale_tics.

Henceforth it will not include those ol' centiseconds.

[ along the way let's expand the man document with a ]
[ a remainder about content representation & scaling ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-15 22:13:44 +11:00
Jim Warner
dd57e856d8 doc: document 'scale_tics' catch-up for Ctrl-E scaling
[ the original newlib commit message(s) appear below ]

------------------------------------- newlib patch ---
doc: document 'scale_tics' function for Ctrl-E scaling

[ i also tweaked that 'STARTED' narrative just a bit ]
[ since its original wording implied the value could ]
[ change, whereas it's fixed when a task is started. ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-15 22:13:44 +11:00
Jim Warner
953016291a top: squashed 'scale_tics' catch-up for Ctrl-E scaling
[ the original newlib commit message(s) appear below ]

---------------------------------- newlib patch #1 ---
top: refactor 'scale_tics' function for better scaling

This patch refactors the 'scale_tics' function to more
closely parallel uptime shown on the first line of the
summary area. The old logic has been preserved through
the header file's new  #define SCALE_FORMER provision.

However, the former logic was actually a big disaster.
These are some potential problems with that old logic:

1. With respect to our time fields top no longer deals
solely with cpu time. So, the old limits of '68 weeks'
could possibly be insufficient to reflect those times.

2. Given the widths of top's new time fields, the code
never got beyond scaling to hours. For example, with a
ridiculously large span of 19 years, the scaled result
would then be shown as '167832h'. We never reached the
days ('6993d') or even the weeks ('999w') equivalents.

3. Similarly, with that 'TIME+' field and a large tics
value, results would then appear as 'MMMMMM:SS' rather
than the more meaningful 'HH:MM:SS' or days and hours.

So henceforth we will adopt these scaling conventions:

  MMM:SS.hh ... minutes:seconds.hundredths
  MMM:SS ...... minutes:seconds
  HH,MM ....... hours,minutes
  D+H ......... days+hours (with 'd' & 'h' suffixes)
  D ........... days (with 'd' suffix)
  W+D ......... weeks+days (with 'w' & 'd' suffixes)
  W ........... weeks (with 'w' suffix)

Note that, unlike our former scaling logic, that 'MMM'
portion won't be allowed to grow unconditionally. It's
limited (arbitrarily?) to 360 total minutes (6 hours).
Additionally, the 'HH' guy will be limited to 96 hours
(4 days) while that 'D' limit was set at 14 (2 weeks).

Whenever a limit is hit, scaling will advance a level.

---------------------------------- newlib patch #2 ---
top: extended 'scale_tics' function for Ctrl-E scaling

That normalization of the 'scale_tics' function in the
prior commit convinced me that I won't please everyone
with my arbitrary choices for the scaling transitions.

So, this patch will provide the users with a means for
setting their own scaling transition points with a new
toggle. Ctrl-E was chosen since the 'e/E' toggles were
already present as a means of scaling (albeit memory).

[ this toggle will also serve an educational purpose ]
[ by allowing one to see all the scaling conventions ]

The scaling a user establishes is saved in the rcfile.

---------------------------------- newlib patch #3 ---
top: enhanced 'scale_tics' function for Ctrl-E scaling

When scale_tics was refactored and then Ctrl-E support
added to top, the complete range of scaling values was
not visible. Namely, a single 'd' (days) & 'w' (weeks)
was never seen with ^E. With this commit they will be.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-15 22:13:44 +11:00
Jim Warner
05187e4f17 ps: swat insidious bug with the %cpu' format specifier
[ the original newlib commit message(s) appear below ]

----------------------------------------- newlib patch
ps: swat insidious bug with the %cpu' format specifier

Whoa, my head really hurts but this commit should help
with a speedy recovery hopefully, after it is applied.

If the '%cpu' field is used as a format specifier with
that 'o' option, you will encounter a SIGSEGV if there
is also an invalid argument on that same command line.

For example, try 'ps/pscommand -o %cpu,x' with newlib.
With any format specifier other than the '%cpu', there
is an error message, as would happen with '-o pcpu,x'.

For a 3.3.17 version of ps, there's no abend. Instead,
the program will just display a bunch of gobbledygook.
This boo-boo was found to exist as far back as v3.3.0.

[ ok, i am starting to feel very much better already ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-15 22:13:44 +11:00
Jim Warner
5822210618 top: swat a bug with 3.2.8 support for field additions
This new integer based version of 'fieldscur' deviated
a bit too much from that character based logic when it
comes to ancient 3.2.8 rcfile support. This results in
an inappropriate extra field shown as the last column.

If we're truly dealing with 20 year old 3.2.8 rcfiles,
it's important the 3.3.9 extension (RCF_PLUS_H) not be
concatenated to what was read. That's because a search
for the special SUSE characters will always find a '\'
in the 26th position (after normal 3.2.8 'fieldscur').

[ for symmetry, we'll also avoid RCF_PLUS_J (3.3.17) ]

All other 'old' rcfiles are transformed without error.

Reference(s):
. Mar, 2022 - 3.2.8 support restores

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-15 22:02:46 +11:00
Jim Warner
980dc08a5b top: honor old rcfiles after change to field additions
This patch will restore the previously abandoned older
rcfile support. To be honest, I wasn't sure this would
be possible given the vast difference between formats.

But after some very intense hacking our newlib top can
again fully support seamless migration from some older
'char' based file to this new 'int' based file format.

[ top even supports a 20+ year old 3.2.8 config file ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-15 22:01:32 +11:00
Jim Warner
40040adf34 top: bump current upper max to 100 for field additions
As I speculated in a prior commit, this patch will now
demonstrate how simple it is to extend the upper limit
of supportable fields. With these changes we'll now go
from facing the old limit of 86 to a new limit of 100.

No other changes are needed nor is any logic impacted.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-15 22:01:32 +11:00
Jim Warner
541567a189 doc: tweak top man page for changes to field additions
Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-15 22:01:32 +11:00
Jim Warner
46aa96e438 top: provide an unlimited capacity for field additions
With each of those references shown below, the maximum
number of fields was increased. However, with a 'char'
based implementation we're nearing the upper limits of
total displayable fields. We currently use 76 of a max
of 86 fields. With extra effort, 94 might be possible.

But 94 is the absolute upper limit of possible fields!

Moreover, the current implementation yields characters
that were unprintable in the rcfile. This could become
an issue with that 'inspect' feature when/if an rcfile
is edited to add entries (as opposed to using 'echo').

So, with this commit the internals of field management
has been completely reimagined. It is now based on the
integer type, not a character. And whereas that former
design used the high order bit to show the 'on' state,
thus yielding an unprintable character, the new design
uses the low order bit for the state. As such, numbers
will be kept small and an even number will be an 'off'
field whereas an odd number will become an 'on' state.

The bottom line is that this new design will afford an
unlimited number of new fields while keeping an rcfile
completely free of that potential unprintable garbage.

And it is embarrassingly easy to extend the maximum of
supportable fields from the currently implemented 100.
Who knows, maybe a future patch will prove this point.

[ unless a subsequent commit proves otherwise, given ]
[ the dramatic differences in rcfile contents, i had ]
[ to abandon the practice of supporting old rcfiles. ]

Reference(s):
. Nov, 2013 - RCF_PLUS_H introduced
commit af4e6533ba
. Jul, 2016 - RCF_PLUS_J introduced
commit d5c5051fb3

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-15 22:01:32 +11:00
Jim Warner
c493fca892 top: warn of man page impact if 'USE_X_COLHDR' defined
This warning was added after discovering openSUSE uses
the option with (at least) their 'tumbleweed' version.

The man document sections impacted are: 4e, 5d and 5e.
That is where it was asserted sort column highlighting
would be temporarily turned off if search ('L') and/or
filtering ('O') is active. This option makes it false.

[ shame on suse for not also correcting the man page ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-15 22:01:32 +11:00
Jim Warner
53917334d0 ps: plus for symmetry 'UTILIZATION_C' is newest format
This commit just compliments a change referenced below
by providing the value which includes reaped children.

[ as an aside, it looks like ps only includes reaped ]
[ children values under an obscure BSD or GNU option ]

[ so, this change is possibly of even more relevance ]

Reference(s):
. Mar, 2022 - added %CUU
commit 2ac72e2e80

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-07 20:29:06 +11:00
Jim Warner
cfa5538832 top: and for symmetry 'UTILIZATION_C' is newest column
This commit just compliments a change referenced below
by providing the value which includes reaped children.

Reference(s):
. Feb, 2022 - added %CUU field
commit 7647e96b0a

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-07 20:29:06 +11:00
Jim Warner
813661c299 library: introduced a 'UTILIZATION_C' item, <pids> api
Some items in the <pids> API carry a '_C' suffix which
implies such values include reaped children. So, we'll
now extend this practice to that new UTILIZATION item.

Reference(s):
. Mar, 2022 - tweak PIDS_UTILIZATION
commit 9c0e8e9429
. Feb, 2022 - added PIDS_UTILIZATION
commit c69104b2b8

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-07 20:29:06 +11:00
Jim Warner
6490349e64 ps: enabled sort with 'utilization' related specifiers
When %CUU was added, in the commit referenced below, I
stated that 4 similar specifiers already existed. Well
I misspoke since there is actually 5 including 'util'.

Each of those fields had no sort capability. Since the
values are dynamically calculated, they were forced to
use 'PIDS_extra' as the format_array 'sr' designation.

Now each will use 'PIDS_UTILIZATION' and be sort-able.

[ yes, sometimes the calculated values could contain ]
[ reaped children while the sort field does not. but ]
[ such disparity depends on obscure bsd/gnu options. ]

Reference(s):
. Mar, 2022 - added %CUU
commit 2ac72e2e80

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-07 20:29:06 +11:00
Jim Warner
e4e7991a26 top: enhanced 'scale_tics' function for Ctrl-E scaling
When scale_tics was refactored and then Ctrl-E support
added to top, the complete range of scaling values was
not visible. Namely, a single 'd' (days) & 'w' (weeks)
was never seen with ^E. With this commit they will be.

Reference(s):
. Mar, 2022 - introduced ^E tics scaling
commit 402bf1903b
. Mar, 2022 - refactored scale_tics
commit 71eb90c1b2

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-07 20:29:06 +11:00
Jim Warner
81df85a1b5 ps: swat insidious bug with the %cpu' format specifier
Whoa, my head really hurts but this commit should help
with a speedy recovery hopefully, after it is applied.

If the '%cpu' field is used as a format specifier with
that 'o' option, you will encounter a SIGSEGV if there
is also an invalid argument on that same command line.

For example, try 'ps/pscommand -o %cpu,x' with newlib.
With any format specifier other than the '%cpu', there
is an error message, as would happen with '-o pcpu,x'.

For a 3.3.17 version of ps, there's no abend. Instead,
the program will just display a bunch of gobbledygook.
This boo-boo was found to exist as far back as v3.3.0.

[ ok, i am starting to feel very much better already ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-06 14:52:34 +11:00
Jim Warner
2ac72e2e80 ps: exploit the library addition for 'cpu utilization'
This just parallels the top program by adding that new
library PIDS_UTILIZATION item to the ps repertoire. It
should be noted, however, that the new %CUU field is a
little redundant. I mean, ps already has 4 such fields
implemented identified as: '%cpu', 'c', 'cp' & 'pcpu'.

Oh well, at least the newest one offers a little value
added in the form of extra precision. We'll follow the
top lead and display results in the form of: '##.###'.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-06 14:52:34 +11:00
Jim Warner
9c0e8e9429 library: guard against 'inf/nan' for 'cpu utilization'
When preparing the ps program for a %CUU field, it was
revealed the PIDS_UTILIZATION item may sometimes yield
a result of 'nan' or 'inf' for that ps program itself.

Apparently, it was caused by the short lived nature of
such a one-shot program. And, while this anomaly could
be handled in ps, the solution belongs in the library.

So, I reworked an item's algorithm to avoid this oops.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-06 14:52:34 +11:00
Jim Warner
5c4c239257 doc: document 'scale_tics' function for Ctrl-E scaling
[ i also tweaked that 'STARTED' narrative just a bit ]
[ since its original wording implied the value could ]
[ change, whereas it's fixed when a task is started. ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-06 14:52:34 +11:00
Jim Warner
402bf1903b top: extended 'scale_tics' function for Ctrl-E scaling
That normalization of the 'scale_tics' function in the
prior commit convinced me that I won't please everyone
with my arbitrary choices for the scaling transitions.

So, this patch will provide the users with a means for
setting their own scaling transition points with a new
toggle. Ctrl-E was chosen since the 'e/E' toggles were
already present as a means of scaling (albeit memory).

[ this toggle will also serve an educational purpose ]
[ by allowing one to see all the scaling conventions ]

The scaling a user establishes is saved in the rcfile.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-06 14:52:34 +11:00
Jim Warner
71eb90c1b2 top: refactor 'scale_tics' function for better scaling
This patch refactors the 'scale_tics' function to more
closely parallel uptime shown on the first line of the
summary area. The old logic has been preserved through
the header file's new  #define SCALE_FORMER provision.

However, the former logic was actually a big disaster.
These are some potential problems with that old logic:

1. With respect to our time fields top no longer deals
solely with cpu time. So, the old limits of '68 weeks'
could possibly be insufficient to reflect those times.

2. Given the widths of top's new time fields, the code
never got beyond scaling to hours. For example, with a
ridiculously large span of 19 years, the scaled result
would then be shown as '167832h'. We never reached the
days ('6993d') or even the weeks ('999w') equivalents.

3. Similarly, with that 'TIME+' field and a large tics
value, results would then appear as 'MMMMMM:SS' rather
than the more meaningful 'HH:MM:SS' or days and hours.

So henceforth we will adopt these scaling conventions:

  MMM:SS.hh ... minutes:seconds.hundredths
  MMM:SS ...... minutes:seconds
  HH,MM ....... hours,minutes
  D+H ......... days+hours (with 'd' & 'h' suffixes)
  D ........... days (with 'd' suffix)
  W+D ......... weeks+days (with 'w' & 'd' suffixes)
  W ........... weeks (with 'w' suffix)

Note that, unlike our former scaling logic, that 'MMM'
portion won't be allowed to grow unconditionally. It's
limited (arbitrarily?) to 360 total minutes (6 hours).
Additionally, the 'HH' guy will be limited to 96 hours
(4 days) while that 'D' limit was set at 14 (2 weeks).

Whenever a limit is hit, scaling will advance a level.

Reference(s):
. Feb, 2022 - added 'ELAPSED'
commit 9348d3b008
. Feb, 2022 - added 'STARTED'
commit 7647e96b0a

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-03-06 14:52:34 +11:00
Jim Warner
9348d3b008 top: added some elapsed running time 'ELAPSED' support
When the 'STARTED' field was added, in the message for
the commit referenced below, I explained why 'ELAPSED'
shouldn't be implemented though it might be preferred.

Well, after climbing out of my box to do a little more
thinking, I came up with the way to add that 'ELAPSED'
field while avoiding the possible performance penalty.

Just do not show what would change with every refresh!

If we do not show the seconds portion of a scaled tics
amount then the problem goes away. And this comes with
an additional benefit. The HH,MM (hours,minutes) style
then is readily compared with that system uptime shown
as HH:MM. The only difference is just the comma/colon.

[ assuming the top uptime/load average toggle was on ]

Reference(s):
. introduced 'start time' field
commit 7647e96b0a

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-28 20:21:00 +11:00
Jim Warner
a749414f16 top: tweaked the recently introduced 'STARTED' support
When the 'STARTED' field was added, the width was made
the same as the 'TIME+' field. Thus, a full time could
be shown (which then included hundredths of a second).

That kind of granularity is totally unnecessary. After
all, this column is potentially confusing enough since
it is so counterintuitive. So, this commit will reduce
the width of the field with some help from scale_tics.

Henceforth it will not include those ol' centiseconds.

[ along the way let's expand the man document with a ]
[ a remainder about content representation & scaling ]

Reference(s):
. introduced 'start time' field
commit 7647e96b0a

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-28 20:21:00 +11:00
Jim Warner
c89421e83a library: trade 'float' type for a 'double', <pids> api
While we really do not need the extra precision, we'll
trade that recently introduced float type for a double
for efficiency on a 64 bit platform. Additionally, the
UTILIZATION algorithm was tweaked producing less code.

The net result is four fewer machine instructions with
a reduction of 14 total bytes in that function's size.

Reference(s):
. introduced 'real' type & 'utilization' item
commit c69104b2b8

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-28 20:21:00 +11:00
Jim Warner
831bd8cf29 w: responded to those library changes for 'TIME' stuff
The library refactored 'TIME' items for consistency so
we must adapt to some new data types and calculations.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-27 21:27:02 +11:00
Jim Warner
8f5a755d11 ps: response to those library changes for 'TIME' stuff
The library refactored 'TIME' items for consistency so
we must adapt to some new data types and calculations.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-27 21:27:02 +11:00
Jim Warner
9b80d47df5 pgrep: adapted to the library changes for 'TIME' stuff
The library refactored 'TIME' items for consistency so
we must adapt to some new data types and calculations.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-27 21:27:02 +11:00
Jim Warner
a39f2bffdc doc: updated with new 'start time' & 'cpu utilization'
Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-27 21:27:02 +11:00
Jim Warner
7647e96b0a top: added fields for 'start time' & 'cpu utilization'
This patch will exploit some new library capabilities.

[ one will raise eyebrows, the other likely will not ]

A new 'STARTED' field was added which shows the time a
process started after system boot. As such the largest
interval represents the most recently started process.

This is the field that will likely be questioned since
it's somewhat counterintuitive. But were we to instead
use TIME_ELAPSED, the value will change with every top
refresh. This will defeat any PUFF macro optimization.

The new '%CUU' field will probably be better received.
It represents the cpu usage over the life of the task.
When a process was showing high %CPU usage, this field
can be used to determine if it's an anomaly or normal.

[ and as with %CPU, %CUU shows a '?' when running in ]
[ a namespace when /proc was mounted with subset=pid ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-27 21:27:02 +11:00
Jim Warner
c69104b2b8 library: added important new functionality, <pids> api
This commit introduces some new capabilities available
in libproc-2 under the <PIDS> interface. Along the way
errors impacting some item values have been corrected.

The following summarizes the major changes being made.

1. The PIDS_TIME_START item was represented as seconds
since system boot but really held tics since boot. And
some programs properly divided it by Hertz to actually
yield seconds while others acted as if it already was.

So, now we have a new PIDS_TICS_BEGAN field and all of
the 'TIME' fields properly reflect seconds. With those
'TIME' fields, the type was changed to 'float/real' so
one could convert it back to tics without loss of some
centiseconds reflected in the Hertz guy (usually 100).

2. The boot_seconds was established in procps_pids_new
meaning it was fixed/unchanging. As a result, one item
(PIDS_TIME_ELAPSED) was rendered useless. So now, each
of the three retrieval functions establishes a current
boot_seconds well before the set functions are called.

3. Added a PIDS_UTILIZATION item that will provide the
CPU usage over the life of a process, as a percentage.

4. Added PIDS_TIME_ALL_C for symmetry with the similar
item called PIDS_TICS_ALL_C (which reflects raw tics).

5. That 'derived from' notation has been added to some
additional header items to reflect their true origins.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-27 21:27:02 +11:00
Jim Warner
854e85a50b doc: minor tweaks affecting three newlib man documents
. add the proper function names to the procps_pids man
page when discussing the 'LIBPROC_HIDE_KERNEL' feature
under recently added 'ENVIRONMENT VARIABLE(S)' section

. ensure the 'SEE ALSO' references are comma delimited

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-27 21:27:02 +11:00
Jim Warner
95990dceb1 top: just trade an assignement for a manifest constant
The assignment was originally created to reduce length
of one line of code (i.e. for readability). But we can
achieve this objective without adding executable code.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-27 21:27:02 +11:00
Jim Warner
204194cdc4 top: trade that 'strncpy' for more efficient 'memccpy'
This patch was prompted by the merge request for pgrep
referenced below. In top's case, any performance gains
will be minimal since the now defunct strncpy was only
employed for termcap rebuilds after interacting with a
user (+ 1 other non-termcap related user interaction).

[ golly, strncpy always calls at least two functions ]
[ but usually calls a total of 3. on the other hand, ]
[ memccpy will only call a maximum of two functions. ]

And thanks to Baruch Siach for these strncpy insights.

Reference(s):
https://gitlab.com/procps-ng/procps/-/merge_requests/148

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-17 18:24:55 +11:00
Jim Warner
41b2b9dca8 top: let's eliminate some additional compiler warnings
This patch eliminates those warnings referenced below.

[ the last error shown needed a little extra cleanup ]
[ for when that '#define SCROLLVAR_NO' is activated. ]

Reference(s):
top.c: In function 'adj_geometry':
top.c:1976:20: warning: comparison of integer expressions of different signedness: 'int' and 'long unsigned int' [-Wsign-compare]
 1976 |    if (Screen_cols < DOUBLE_limit) Curwin->rc.double_up = 0;
      |                    ^
top.c: In function 'zap_fieldstab':
top.c:2436:26: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
 2436 |    if (wtab[EU_CPN].wmin < digits) {
      |                          ^
top.c:2442:26: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
 2442 |    if (wtab[EU_NMA].wmin < digits) {
      |                          ^
top.c: In function 'keys_summary':
top.c:5382:45: warning: comparison of integer expressions of different signedness: 'int' and 'long unsigned int' [-Wsign-compare]
 5382 |          if (w->rc.double_up && Screen_cols < DOUBLE_limit) {
      |                                             ^
top.c: In function 'task_show':
top.c:6306:13: error: expected ';' before 'else'
 6306 |             else
      |             ^~~~

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-17 18:24:55 +11:00
Jim Warner
081126f36f top: attempt to clarify the 'iokey' parameter meanings
The 'iokey' function's parameter 'action' was utilized
with literal numbers in the calling functions. So this
change will replace those literal numbers with #define
constants which, one hopes, will clarify their impact.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-17 18:24:55 +11:00
Jim Warner
98ca9fe367 top: trade that 'strncpy' for more efficient 'memccpy'
This patch was prompted by the merge request for pgrep
referenced below. In top's case, any performance gains
will be minimal since the now defunct strncpy was only
employed for termcap rebuilds after interacting with a
user (+ 1 other non-termcap related user interaction).

[ golly, strncpy always calls at least two functions ]
[ but usually calls a total of 3. on the other hand, ]
[ memccpy will only call a maximum of two functions. ]

And thanks to Baruch Siach for these strncpy insights.

Reference(s):
https://gitlab.com/procps-ng/procps/-/merge_requests/148

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-17 18:23:30 +11:00
Jim Warner
787615d8da top: tweak a couple task_show() macros for consistency
There was a potential problem with these macros should
that '#define SCROLLVAR_NO' be active and they were to
appear in an 'if' statement (like is necessary for the
master branch version of top under that EU_CMD label).

[ now they're always usable without requiring an ';' ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-17 18:23:30 +11:00
Jim Warner
2c12f1f295 top: let's eliminate some additional compiler warnings
This patch eliminates those warnings referenced below.
They are sometimes associated with an obscure #define.

We'll also corrrect one header file function prototype
so it will aggree with the actual function definition.

Reference(s):
top.c: In function 'adj_geometry':
top.c:1874:20: warning: comparison of integer expressions of different signedness: 'int' and 'long unsigned int' [-Wsign-compare]
 1874 |    if (Screen_cols < DOUBLE_limit) Curwin->rc.double_up = 0;
      |                    ^
top.c: In function 'zap_fieldstab':
top.c:2359:26: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
 2359 |    if (wtab[EU_CPN].wmin < digits) {
      |                          ^
top.c:2365:26: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
 2365 |    if (wtab[EU_NMA].wmin < digits) {
      |                          ^
top.c: In function 'keys_summary':
top.c:5128:45: warning: comparison of integer expressions of different signedness: 'int' and 'long unsigned int' [-Wsign-compare]
 5128 |          if (w->rc.double_up && Screen_cols < DOUBLE_limit) {
      |                                             ^
top.c: In function 'sum_tics':
top.c:5605:22: warning: unused variable 'num_syst' [-Wunused-variable]
 5605 |    int ix, num_user, num_syst;
      |                      ^~~~~~~~
top.c:5605:12: warning: unused variable 'num_user' [-Wunused-variable]
 5605 |    int ix, num_user, num_syst;
      |            ^~~~~~~~

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-17 18:23:30 +11:00
Jim Warner
0847ea8360 top: attempt to clarify the 'iokey' parameter meanings
The 'iokey' function's parameter 'action' was utilized
with literal numbers in the calling functions. So this
change will replace those literal numbers with #define
constants which, one hopes, will clarify their impact.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-17 18:23:30 +11:00