Jim Warner [Fri, 5 Feb 2021 06:00:00 +0000 (00:00 -0600)]
library: update those source files for copyright dates
In addition to copyright date, the initial descriptive
line was changed from a generic statement to one which
reflects the specific portion of the proc/ filesystem.
[ such descriptions alternate between 'declarations' ]
[ (h files) & corresponding 'definitions' (c files). ]
Also, a few missing copyright attributions were added.
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Tue, 2 Feb 2021 06:00:00 +0000 (00:00 -0600)]
library: tweak 'other' user/group names for efficiency
This commit just ensures that the relatively expensive
ID to name conversions aren't performed unless they're
explicitly requested. It also internalizes those flags
that required the PROC_FILLSTATUS flag to also be set.
[ requiring a caller, in our case pids.c, to provide ]
[ two flags when a single field was the objective is ]
[ wrong & represents a future potential toe-stubber. ]
[ moreover, what's worse is that those two flags are ]
[ seemingly unrelated. but, without both, a SEGV can ]
[ can be expected when a result.str pointer is NULL. ]
[ by contrast, in the master branch those fields are ]
[ arrays which, when set to zeroes, produce an empty ]
[ string. So, there is no abend (but no name either) ]
[ when one of those two required flags were omitted. ]
[ and worth noting, in that branch it's not just one ]
[ caller required to observe a two flag requirement. ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Wed, 20 Jan 2021 06:00:00 +0000 (00:00 -0600)]
docs: adapt procps_misc.3 for new 'misc.h' header file
This commit adapts our man page for a new consolidated
'misc.h' header file. Along the way, some descriptions
were shortened, others lengthened and whitespace added
in an effort to (hopefully) improve readability a bit.
[ the #include subdirectory was also corrected while ]
[ rearranging & grouping functions into 3 categories ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Tue, 19 Jan 2021 06:00:00 +0000 (00:00 -0600)]
all: make buildable again for new 'misc.h' header file
With the 4 header files removed in the previous patch,
this commit just changes all those obsolete references
to that new consolidated 'misc.h' header file instead.
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Mon, 18 Jan 2021 06:00:00 +0000 (00:00 -0600)]
library: combine 4 files into new 'misc.h' header file
Prior to this patch, we had four separate header files
dealing with miscellaneous functions. Those four files
were documented in the single man page: procps_misc.3.
Now, we will have just a single header file documented
in a single man page (that is what's called symmetry).
[ and while we're at it, we will shorten that overly ]
[ long struct 'procps_namespaces' name to agree with ]
[ the function naming conventions, e.g. 'procps_ns'. ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Wed, 13 Jan 2021 06:00:00 +0000 (00:00 -0600)]
library: reduce overhead for another 'escape' function
The preceding commit made that 'esc_all' function more
efficient by using direct pointer manipulation instead
of an indexed string reference approach within a loop.
This commit applies the same approach to the 'esc_ctl'
function. Now we'll save 12 more iterated instructions
while decreasing the function's code size by 43 bytes.
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Tue, 12 Jan 2021 06:00:00 +0000 (00:00 -0600)]
library: improve performance for one 'escape' function
While this patch has some cosmetic whitespace changes,
more importantly it makes that 'esc_all' function more
efficient. By abandoning the indexed loop approach for
a direct pointer manipulation, we will save 9 iterated
machine instructions, for a total of 33 bytes of code.
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Wed, 30 Dec 2020 06:00:00 +0000 (00:00 -0600)]
top: allow setting variable width col scroll (1 vs. 8)
The Inspection feature already offered an INSP_SLIDE_1
provision. This patch now offers similar extensions to
variable width column scrolling (assuming SCROLLVAR_NO
isn't defined). Such a provision was useful during the
development of some recent library UTF-8 enhancements.
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Tue, 29 Dec 2020 06:00:00 +0000 (00:00 -0600)]
top: relocate the 'fatal_proc_unmounted' function call
With the restoration of corrupt utf8 multibyte editing
to the library, it's important to establish the proper
locale before calling that 'fatal_proc_unmounted' guy.
He calls the original 'look_up_our_self' who, in turn,
will invoke 'stat2proc' which then calls 'escape_str'.
Once there, it's too late to effect changes to locale.
[ the result would be lots and lots of '?' displayed ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Mon, 28 Dec 2020 06:00:00 +0000 (00:00 -0600)]
library: refactor 'escape' logic for newlib (2nd time)
Much of what was represented in the commit message for
the reference shown below was revisited in this patch.
It also means that the assertion in the last paragraph
of that message will only now be true with LANG unset.
[ and forget all the bullshit about not altering any ]
[ kernel supplied data. sometimes we must to avoid a ]
[ corrupt display due to a string we can not decode. ]
And while this commit still avoids the overhead of the
'mbrtowc', 'wcwidth' 'isprint, & 'iswprint' functions,
we achieve all the benefits with simple table lookups.
Plus such benefits are extended to additional strings.
For example, both PIDS_EXE and PIDS_CMD fields are now
also subject to being 'escaped'. If a program name did
contain multibyte characters, potential truncation may
corrupt it when it's squeezed into a 15/63 byte array.
Now, all future users of this new library only need to
deal with the disparities between string and printable
lengths. Such strings themselves are always printable.
[ the ps program now contains some unnecessary costs ]
[ with the duplicated former 'escape' functions. But ]
[ we retain that copied escape.c code for posterity. ]
[ besides, in a one-shot guy it's of little concern. ]
Note: Proper display of some multibyte strings was not
possible at the linux console. It would seem a concept
of zero length chars (like a 'combining acute accent')
is not recognized. Thus the display becomes corrupted.
But if utf8 decoding is disabled (via LANG=), then all
callers will now see '?', restoring correct alignment.
Jim Warner [Thu, 24 Dec 2020 06:00:00 +0000 (00:00 -0600)]
library: refactor 'escape' logic for newlib essentials
This new library provides callers with pure strings or
string vectors. It is up to those callers to deal with
potential utf8 multibyte characters and any difference
between strlen and the corresponding printable widths.
So, it makes no sense for the library to go to all the
trouble of invoking those rather expensive 'mbrtowc' &
'wcwidth' functions to ultimately yield total 'cells'.
Thus, this patch will eliminate all the code and parms
that are involved with such possible multibyte issues.
[ Along the way we'll lose the ability to substitute ]
[ '?' for an invalid/unprintable multibyte sequence. ]
[ We will, however, replace ctrl chars with the '?'. ]
[ This presents no problem for that ps program since ]
[ it now duplicates all of the original escape code. ]
[ And, we'll no longer be executing that code twice! ]
[ As for the top program, it takes the position that ]
[ it is wrong to alter kernel supplied data. So with ]
[ potential invalid/unprintable stuff, he'll rely on ]
[ terminal emulators to properly handle such issues! ]
[ Besides, even using a proper multibyte string, not ]
[ all terminals generate the proper printable width. ]
[ This is especially true when it comes to an emoji. ]
[ And should callers chose not to be portable to all ]
[ locales by calling setlocale(LC_ALL, ""), they can ]
[ expect to see lots of "?", regardless of what this ]
[ library fixes in a faulty multibyte string anyway. ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Wed, 23 Dec 2020 06:00:00 +0000 (00:00 -0600)]
top: added utf8 multibyte support to additional fields
When any process' command line contains multibyte utf8
characters, two separate display problems could arise.
1. If that COMMAND column is not displayed as the very
last field, then field(s) to the right are misaligned.
2. Even when last, should utf8 string length (not that
display length) exceed allowable screen width, it will
nonetheless suffer from improper premature truncation.
Number 1 is less of a concern since the cmdline column
is likely to always be the last field to be displayed,
if only to enable right and left scrolling provisions.
Number 2 is much more likely to occur, especially with
additional fields which might be shown before COMMAND.
Or, forest view child tasks can yield the same effect.
So, this commit will permit the correct utf8 multibyte
display regardless of field position or string length.
And, we'll bring top into line with the ps program for
additional fields potentially subject to utf8 display.
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Wed, 23 Dec 2020 06:00:00 +0000 (00:00 -0600)]
ps: extend utf8 multibyte support to additional fields
Form its inception (back in May of 2011), escaped_copy
has always been a flawed function. It does not operate
on 'escaped' strings but instead treats all input as a
regular string incapable of containing utf8 sequences.
As such, it should only be used for strings guaranteed
to NOT embody multibyte characters (like SUPGIDS). For
all other strings, which could contain utf8 stuff, the
correct function should have been that escape_str guy.
So this commit changes nearly every escaped_copy call.
Jim Warner [Tue, 22 Dec 2020 06:00:00 +0000 (00:00 -0600)]
library: fix a potential error relating to 'exe' logic
After 'errno' management was standardized, a couple of
fields were added to the <pids> api. Only 1 (PIDS_EXE)
involved dynamic memory and, unfortunately, it did not
conform to that expected normalized ENOMEM convention.
Jim Warner [Sun, 20 Dec 2020 06:00:00 +0000 (00:00 -0600)]
top: add pids_item enumerator as comments to task_show
The Fieldstab uses the full pids_item enumerator names
but also shows top's cryptic relative enumerator names
as comments. So, this commit will mirror that approach
in task_show, adding full pids_item names as comments.
Signed-off-by: Jim Warner <james.warner@comcast.net>
Stephen Brennan [Fri, 20 Nov 2020 00:03:58 +0000 (16:03 -0800)]
Set TZ to avoid repeated stat("/etc/localtime")
With glibc, each time the strftime() function is used (twice per process
in a typical ps -fe run), a stat("/etc/localtime") system call is used
to determine the timezone. Not only does this add extra system call
overhead, but when multiple ps processes are trying to access this
file (or multiple glibc programs using strftime) in parallel, this can
trigger significant lock contention within the OS kernel.
Since ps is not intended to run for long periods of time as a
daemon (during which the system timezone could be altered and PS might
reasonably be expected to adapt its output), there is no benefit to
repeatedly doing this stat(). To stop this behavior, explicitly set the
TZ variable to its default value (:/etc/localtime) whenever it is unset.
glibc will then cache the stat() result.
Craig Small [Mon, 21 Dec 2020 23:55:18 +0000 (10:55 +1100)]
misc: Document sysctl change bug
While sysctl did change the order of /run and /etc to match
systemd in the referenced commit, the Debian bug report that
brought it to light was not documented.
Jim Warner [Mon, 19 Oct 2020 05:00:00 +0000 (00:00 -0500)]
library: a tweak to the UNREF_RPTHASH code, <pids> api
If a hash results report is output (via UNREF_RPTHASH)
a portion is devoted to occupied table entries ordered
by depth. There is a possibility that some depths will
not be found among existing occupied table entries and
to avoid any confusion probably should not be printed.
[ to illustrate the potential for confusion prior to ]
[ this patch, force a very small table size (like 8) ]
[ & then trigger the procps_pids_unref() eoj report. ]
So this patch ensures only 'in use' entries are shown.
[ admittedly, all of the remaining logic in the loop ]
[ could/should be subordinate to this new 'if' test, ]
[ but we will keep the change to a minimum. besides, ]
[ there's no harm subtracting/adding a zero numdepth ]
[ especially since the chance of a zero is very low. ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Craig Small [Mon, 19 Oct 2020 11:36:06 +0000 (22:36 +1100)]
free,slabtop,uptime: complain about extra ops
free, slabtop and uptime would happily take extra command line
arguments and doing nothing about them. The programs now check
optind after option processing and will give you usage screen
if there is anything extra.
Craig Small [Mon, 19 Oct 2020 11:03:44 +0000 (22:03 +1100)]
watch: Add no linewrap option
For long lines from a process, watch would wrap them around to the
next. While this default option has it uses, sometimes you want to
just cut those long lines down.
watch has a -w flag which will truncate the lines to the number
of columns. A few simple lines to do this new trick.
I think I caught all the ANSI state correctly but there might be
a chance it bleeds to the next row.
Craig Small [Mon, 19 Oct 2020 09:05:41 +0000 (20:05 +1100)]
build-sys: Build check programs only on make check
noinst_PROGRAMS are built with "make" even though we had the
test programs in there and only needed them for "make check".
In theory the check target should depend on check_PROGRAMS as
check-am target does and the document states it should, but for
reasons understood by the automake whisperers only, it doesn't
build them.
check only depends on BUILT_SOURCES for some reason.
Craig Small [Mon, 19 Oct 2020 08:25:33 +0000 (19:25 +1100)]
build-sys: Add check-lib target
The referenced commits created the library infrastructure and test
program to validate that the structures and macros line up with
each other.
The library needs to be (re)built with -DITEMTABLE_DEBUG and then
the test program ran. We clean before and after so we are not
testing a non-debug library or having a debug library hanging around
to cause future problems.
Due to test_Itemtables depending on the library, we don't need to
explicitly build the library.
To validate the library structure/header corrospondence run:
make check-lib
Jim Warner [Thu, 1 Oct 2020 05:00:00 +0000 (00:00 -0500)]
library: tweak that history hash algorithm, <pids> api
This patch just raises the size of the hash table used
to calculate elapsed task stuff. The net result should
be less need for 'chaining' under pid hash collisions.
[ the hash scheme is intentionally kept as primitive ]
[ and, therefore, as fast as possible. it employs an ]
[ 'and' approach versus a 'mod' operation since both ]
[ yield similar distribution but the former approach ]
[ was 4 fewer cpu instructions in terms of overhead. ]
[ additionally, for hash collisions, 'chaining' uses ]
[ an array index rather than the usual pointer since ]
[ the HST_t guys may move when they are reallocated. ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Wed, 30 Sep 2020 05:00:00 +0000 (00:00 -0500)]
library: tweak the memory allocation logic, <pids> api
This patch separates the memory allocations into those
used initially from those used in later reallocations.
Thus, we can reduce that iterative realloc() overhead.
Additionally, we'll correct a long standing oops where
multiple history_info structures were created at 'new'
time when only one should have been allocated (jeeze).
[ originally the allocation was strangely based upon ]
[ number of 'items' (???) & later a #define constant ]
Craig Small [Thu, 24 Sep 2020 12:19:11 +0000 (22:19 +1000)]
ps: Match on truncated 16 char for -C
The referenced commit the comm length was increased from 16 to 64
characters to handle the larger command names for things like kernel
threads.
However most user processes are limited to 15 characters which means
if you try something like ps -C myprogramisbiggerthansixteen this would
fail to match because /proc/<PID>/comm would only be myprogramisbigg
ps now checks the comm length and if it is 15 and if the given match
is 15 or more, it will only match the first 15 characters.
This is also how killall has worked for about a year.
Thanks to Jean Delvare <jdelvare@suse.de> for the note.
Jim Warner [Sun, 13 Sep 2020 05:00:00 +0000 (00:00 -0500)]
top: fix additional SEGVs if no tasks were displayable
This patch is an outgrowth of that commit shown below.
Many additional potential segmentation faults might be
encountered if interactive commands are opened up to a
user when a '-p' switch has a single non-existent pid.
[ always the 'k', 'L', 'r', 'Y' keys & maybe 'v' too ]
So, this patch will restrict such a loser (oops, user)
to a reduced subset of normal commands until he/she/it
quits then restarts top with something to be displayed
or issues the '=' command overriding that '-p' switch.
Craig Small [Sun, 13 Sep 2020 00:25:19 +0000 (10:25 +1000)]
vmstat: Null the diskstats pointer
I'm not sure why, but the make check will now fail for vmstat
Running ./vmstat.test/vmstat.exp ...
FAIL: vmstat disk information (-d option)
With the _new function returning the error.
In vmstat all other structures are set to NULL before calling _new
except the diskstat ones. This has been corrected.
Jim Warner [Wed, 9 Sep 2020 05:00:00 +0000 (00:00 -0500)]
top: fix potential SEGV when no tasks were displayable
This patch fixes a nearly decade old bug discovered by
Frederik Deweerdt. His merge request shown below would
be an adequate solution except for iterative overhead.
This alternate patch will represent substantially less
overhead for an admittedly extremely rare possibility.
Jim Warner [Tue, 8 Sep 2020 05:00:00 +0000 (00:00 -0500)]
top: update user/system cpu % graph content (man page)
What had been stated as the contents of the cpu graphs
was never really inclusive enough. Those recent newlib
tweaks highlighted the need for these man doc changes.
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Tue, 8 Sep 2020 05:00:00 +0000 (00:00 -0500)]
library: tweak those system cpu statistics, <stat> api
This patch may be a little misleading in terms of size
since most of the changes just reorder a little logic.
The most significant changes involve two GUEST values.
My original implementation excluded such tics from the
TOTAL calculation and, therefore, the BUSY figure too.
That decision was erroneously based on some code found
in ./kernel/sched/cputime.c which in hindsight applies
only to processes, not those system level cpu figures.
[ another likely oops classified STOLEN tics as IDLE ]
So, this patch attempts to bring those SUM values into
better agreement with the calculations performed for a
root cgroup (see ./kernel/cgroup/rstat.c source file).
[ we differ from those above in that we also include ]
[ the IDLE plus IOWAIT tics in our TOTAL calculation ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Sat, 22 Aug 2020 05:00:00 +0000 (00:00 -0500)]
library: eliminate one potential source of human error
There's a huge toe-stubber awaiting future maintenance
as reflected in that commit below which deals with the
addition of new enumerators to the Item_table. Namely,
whenever the table is grown, one must remember to also
change that existing 'logical_end' enumerator's value.
Well, not anymore! Since that MAXTABLE macro was added
to the procps-private.h header we can now also exploit
it so a 'logical_end' automatically tracks table size.
This change also renders some code associated with the
ITEMTABLE_DEBUG #define unnecessary. So it's gone too.
Jim Warner [Wed, 19 Aug 2020 05:00:00 +0000 (00:00 -0500)]
library: fix a flaw in one 'new' function, <diskstats>
At 'new' time, the major API modules each ensure their
'info' parameter isn't NULL but what it pointed to was
except this single straggler, for some unknown reason.
So, this patch brings him into line with those others.
[ And, without going into the ugly details, this was ]
[ the reason I never experienced an abend originally ]
[ but Craig did. And, though related to stacks mgmt, ]
[ zero initialization was not a factor. Anyway, with ]
[ this patch, everybody would have experienced abend ]
[ under the original (faulty) test_Itemtables logic! ]
Jim Warner [Mon, 17 Aug 2020 17:12:12 +0000 (12:12 -0500)]
build-sys: proper fix for the 'test_Itemtables' module
Me thinks Craig had the right idea but perhaps not the
most correct solution. As currently structured, all of
the tests now go way too far by checking every 'unref'
and 'new' call when what we're trying for is survival.
In the final analysis, it doesn't matter who issues an
EXIT_FAILURE - that run_tests guy or an early Exit out
of a procps_new() function. They both will produce the
same end result of the desired "FAIL" test diagnostic.
[ and this patch once again allows the slabinfo test ]
Craig Small [Mon, 17 Aug 2020 12:47:39 +0000 (22:47 +1000)]
build-sys: Check return values and NULL ctx
The referenced commit introduced a test program for the API
but it would often fail due to:
The given pointer for _new() not being NULL
The return value for _new not checked, so the subsequent _unref()
would free() random memory
slabinfo checks failing due to permission denied errors.
The first two are fixed, as well as returning a fail to the test
if they don't return correctly, with slabinfo waiting to see if there
is a way of initialising the structure without reading the slabinfo.
Jim Warner [Sat, 15 Aug 2020 17:12:12 +0000 (12:12 -0500)]
build-sys: added a 'test_Itemtables' to testing scheme
This change sets the stage for exploiting the recently
added ITEMTABLE_DEBUG #define. All tests are performed
in a single module (after trying 6 separate programs).
The chances of each test detecting errors is extremely
remote (at least while I'm maintaining these modules).
However, this single program approach has one flaw and
it relates to the response whenever an error is found.
Each of those six new API modules calls Exit() if they
detect an error. Otherwise, incorrect results would be
produced at the least or an abend encountered at most.
This means that multiple 'make check' invocations will
be needed if more than 1 module actually was in error.
All in all, it is a small price for a large assurance.
Jim Warner [Sat, 15 Aug 2020 16:11:11 +0000 (11:11 -0500)]
build-sys: fix some important 'tests.h' related issues
Exploiting a header file shouldn't also force users to
code their own '#include <stdio.h>'. More importantly,
unless this header is mentioned in dist_noinst_HEADERS
we'd fail 'make distcheck' with the error shown below.
[ the same error will apply to all 'noinst_PROGRAMS' ]
[ that happen to use this header. but please, do not ]
[ ask me to explain exactly why or how my fix works! ]
Reference(s):
../../proc/test_pids.c:24:10: fatal error: tests.h: No such file or directory
24 | #include "tests.h"
| ^~~~~~~~~
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Sat, 15 Aug 2020 15:10:10 +0000 (10:10 -0500)]
build-sys: tweak make & activate some overlooked tests
This commit is just preparing for adding an Itemtables
verification test by reorganizing stuff and activating
a few previously inactive (overlooked?) test programs.
Signed-off-by: Jim Warner <james.warner@comcast.net>
The recent work on updating the <meminfo> and <vmstat>
modules with some newly added linux fields reminded me
(again) of a need for some mechanism guaranteeing that
a header file agrees with the source file assumptions.
Sadly, in the past, if a table entry was omitted or if
the table and header are ordered differently, then the
library would silently return the wrong results values
or even potentially experience a SIGSEGV abnormal end.
This patch offers a much needed development assist for
ensuring that Item_table entries are synchronized with
header file enumerators in terms of number plus order.
It's intended solely for our use as libprocps evolves.
Now, by activating ITEMTABLE_DEBUG, either directly or
via ./configure CFLAGS='-DITEMTABLE_DEBUG', the number
and order will be verified. It is envisioned that this
feature will be used at least once prior to a release.
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Mon, 10 Aug 2020 05:00:00 +0000 (00:00 -0500)]
library: added MAXTABLE macro to proc/procps-private.h
This macro should help the following patch be a little
less prolix. Besides, this private header could/should
do just a little more to help with our newlib efforts.
Signed-off-by: Jim Warner <james.warner@comcast.net>
This cosmetic change just prepares for the later patch
introducing validation of Item_tables and enumerators.
[ and, we'll now have better 'set' function names of ]
[ 'set_diskstats_ENUM' instead of the more redundant ]
[ current 'set_diskstats_DISKSTATS_ENUM' convention. ]
[ now our only exception is the <slabinfo> api where ]
[ a full enumerator identifier with 'SLAB' & 'SLABS' ]
[ prefixes are used, and 'SLABINFO_noop/extra' guys. ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Sat, 25 Jul 2020 05:00:00 +0000 (00:00 -0500)]
library: ensure 'XTRA_PROCPS_DEBUG' works in real life
This commit attempts to smooth some wrinkles impacting
any future libprocps user exploitation. The 2 problems
relate exclusively to our XTRA_PROCPS_DEBUG provision.
1. The 'xtra-procps-debug.h' header had an include for
'procps-private.h', which was not an installed header.
So the STRINGIFY macros will now be embedded directly.
2. Each of the new api headers referenced '<proc/...>'
rather than '<procps/...>' for the debugging #include.
So, we must drop that prefix in favor of a quoted file
name so that debugging builds work regardless of where
that 'xtra-procps-debug.h' header happens to be found.
Jim Warner [Fri, 24 Jul 2020 15:24:57 +0000 (10:24 -0500)]
library: added some justification emphasis, <pids> api
I almost feel like I should apologize for this kind of
patch ( *almost* ). But, since this comment was unique
to the <pids> api and since it was especially designed
to align with the following comment and since the next
comment already carried the alignment emphasis, I will
refrain from issuing any apology and submit it anyway.
[ plus to prove that i am not totally anal-retentive ]
[ and can exercise some restraint there are two more ]
[ places where i COULD have added alignment emphasis ]
[ see lines 804-806 and lines 1360-1361 for my proof ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Thu, 23 Jul 2020 05:00:00 +0000 (00:00 -0500)]
top: for consistency, reposition a few man page macros
This patch just repositions some .PP macros so they'll
immediately precede the paragraphs to which they apply
rather than a comment line used as a visual separator.
[ ok we also update the document date to 'July 2020' ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Mon, 13 Jul 2020 05:00:00 +0000 (00:00 -0500)]
library: show allowable range in relative enum warning
This patch just trades the 'typestr' for the much more
meaningful 'valid range' when a relative enum has been
deemed invalid under that XTRA_PROCPS_DEBUG provision.
[ and we'll also make one comment a bit more generic ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Fri, 10 Jul 2020 05:00:00 +0000 (00:00 -0500)]
top: address several 'mandoc -Tlint' errors & warnings
This commit addresses the errors/warnings shown below.
Reference(s):
ERROR: skipping end of block that is not open: RE
WARNING: skipping paragraph macro: sp after PP
WARNING: skipping paragraph macro: PP empty
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Thu, 9 Jul 2020 05:00:00 +0000 (00:00 -0500)]
top: make that 'cpu_prt' function a tad more efficient
This commit only eliminates two 'nop' instructions and
one 'jmp' instruction. However, it makes that C source
code look a little bit prettier than it looked before.
[ and yes, some unnecessary parenthesis were used to ]
[ force an alignment of some related lines. it costs ]
[ us nothing in extra code yet helps in readability. ]
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Wed, 1 Jul 2020 05:00:00 +0000 (00:00 -0500)]
build-sys: correct those installed development headers
These headers were used only in the library itself and
it's wrong to have them in the user include directory.
* devname.h .. is used only by: ... pids.c, readproc.c
* numa.h ..... is used only by: ....... pids.c, stat.c
* pwcache.h .. is used only by: ........... readproc.c
* readproc.h . is used only by: ..... escape.c, pids.c
* wchan.h .... is used only by: ............... pids.c
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jim Warner [Tue, 30 Jun 2020 05:00:00 +0000 (00:00 -0500)]
library: make that 'escape_str' private to our library
In that commit referenced below, a promise was made to
revisit an 'escape_str' function in efforts to make it
private to the library. The problem was it's needed by
both ps plus the library which is why it was exported.
So, in an effort to remove it from libprocps.sym, this
patch duplicates all the required code in ps/output.c.
Now, each version can be made private to their caller.
[ along the way we'll use this opportunity to remove ]
[ the 'restrict' qualifiers from function parameters ]
[ while swatting a compiler warning referenced below ]
Jim Warner [Tue, 30 Jun 2020 05:00:00 +0000 (00:00 -0500)]
library: eliminated the questionable 'procps.h' header
There was a time when that procps.h file served a more
traditional role. Prior to the commit referenced below
it held just macros plus manifest constants. But, with
that change, such items were replaced with a series of
includes embracing all the library exported functions.
That approach was known to disguise errors which would
have otherwise yielded a compiler warning. And without
such a warning, there was no way to address the error.
So this patch will trade the all inclusive header file
approach for individual includes only where necessary.
Jim Warner [Sun, 28 Jun 2020 05:00:00 +0000 (00:00 -0500)]
misc: eliminate a couple of miscellaneous gcc warnings
This commit just address the two warnings shown below.
Reference(s):
pgrep.c: In function `select_procs':
pgrep.c:535:12: warning: variable `now' set but not used [-Wunused-but-set-variable]
535 | time_t now;
| ^~~
pidof.c: In function `select_procs':
pidof.c:201:9: warning: `stat_cmd' may be used uninitialized in this function [-Wmaybe-uninitialized]
201 | !strcmp(program, stat_cmd) ||
| ^~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Jim Warner <james.warner@comcast.net>
Jan Rybar [Thu, 30 Apr 2020 15:06:18 +0000 (17:06 +0200)]
vmstat and watch manpage slight fixes
vmstat - align wording with proc manpage to clarify ambiguities (rhbz#1796043)
watch - manpage presumes ntp tools are present by default (which they're not on rpm and deb distros, rhbz#1583669)
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