Commit Graph

15 Commits

Author SHA1 Message Date
Jim Warner
3860f39b3e ps: increase command name length to 64 ____ (catch up)
Reference(s):
. orginal master branch commit, 5/19/18
commit 14005a371e

Signed-off-by: Jim Warner <james.warner@comcast.net>
2019-09-22 07:32:03 +10:00
Jim Warner
584028dbe5 ps: exploit those new <pids> task/threads capabilities
This commit represents the ps transition to the <pids>
'stacks' interface. While an effort to minimize impact
on existing code was made (as with a disguised proc_t)
the changes were still extensive. Along the way, a few
modifications beyond simply conversion were also made.

------------------------------------------------------
Here's a brief overview the design of this conversion:

. The need to satisfy relative enum requirements could
not easily have been made table driven since any entry
in the format_array might require several <pids> items
in support. So I decided to allow every print function
to contribute its own relative enums once the decision
as to exactly what will be printed had been finalized.

. A similar approach was taken for sorting, since it's
possible to have sort keys that will not be displayed.
Here, I relied on the existing print extensions above.

. In summary, just prior to printing ps walks thru two
lists one time (the format_list & sort_list) and calls
each print function. That function does not print, but
sets its required enum if necessary. Later, when those
same functions are called repeatedly for every printed
line, the only overhead will be an if test and branch.

------------------------------------------------------
Below is a summary of major changes beyond conversion:

. Sorts are now the responsibility of the library. And
therefore the total # of sortable fields substantially
increased without effort. Additionally, several quirky
fields remain as sortable, even though they can't ever
be printed(?). Surely that must make sense to someone.

[ while on this subject of sort, please do *not* try ]
[ to sort old ps on 'args'. or better yet, if you do ]
[ try that sort, see if you can determine his order, ]
[ without peeking at the source. that one hurts yet! ]

. All logic dealing with the old openproc flags and ps
struct members known as 'need' have been whacked since
that entire area was solely the new library's concern.

. Remaining malloc/calloc calls to stdlib were changed
to xmalloc/xcalloc from our own include/xalloc.h file.
None of the replaced calls ever checked return values.

[ be aware that 2 minor potential memory leaks exist ]
[ depending on command line arguments. no attempt is ]
[ made to free dynamically acquired format/sort node ]
[ structures upon return; a conscious design choice. ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2015-10-05 21:52:08 +11:00
Jaromir Capik
e751606fcc ps: add -q/q/--quick-pid option
This commit introduces a new option q/-q/--quick-pid
to the 'ps' command. The option does a similar job
to the p/-p/--pid option (i.e. selection of PIDs
listed in the comma separated list that follows
the option), but the new option is optimized
for speed.
In cases where users only need to specify a list
of PIDs to be shown and don't need other selection
options, forest type output and sorting options,
the new option is recommended as it decreases
the initial processing delay by avoiding reading
the necessary information from all the processes
running on the system and by simplifying
the internal filtering logic.
2014-07-10 21:24:19 +02:00
Sami Kerola
ce61089059 docs: clarification to license headers in files
Add license header to all files.  The summary of licensing is below,
taken from Craig Small's email which is referred in commit message
tail.

sysctl and pgrep are GPL 2+
The rest is LGPL 2.1+

Reference: http://www.freelists.org/post/procps/Incorrect-FSF-address-in-the-license-files,8
Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=797962
CC: Craig Small <csmall@enc.com.au>
CC: Jaromir Capik <jcapik@redhat.com>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-03-03 18:41:11 +11:00
Sami Kerola
79ceb30b5c ps: unify cases and remove trailing dots in messages
Strings with lower caps & no trailing dots have greater change to
have multiple occurences, meaning less effort for translators, than
strings with them.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-01-15 20:52:58 +01:00
Sami Kerola
809906b6a7 ps: add catastrophic_failure()
The catastrophic_failure function tries to make bug reporting useful
by telling in which line error occured, and drops core.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-01-13 22:42:38 +01:00
Jim Warner
71b72b36ce ps: minor reformatting and trailing whitespace elimination
This patch mostly reorganizes include files and eliminates
some useless trailing whitespace.

It also adopts the standard procps-ng unconditional approach
to nls initialization.
2012-01-04 08:58:53 +11:00
Sami Kerola
4bd36d1483 ps: add gettext support
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-12-20 17:30:45 +01:00
albert
ac6260bc23 hard disk about to die 2003-09-28 02:45:05 +00:00
albert
c462dcfad5 ps thread support 2003-09-20 08:29:55 +00:00
albert
cc5c6955be warning directs users to the FAQ 2003-02-18 03:51:03 +00:00
albert
f5702f2c75 ps --ppid 2003-02-09 07:31:11 +00:00
albert
3e67b58ec2 satisfy GPL section 2a and LGPL section 2b name+date requirement 2002-12-15 00:30:17 +00:00
albert
7ac9a0e1f5 present for Jim 2002-12-03 09:07:59 +00:00
csmall
03a9b5a30f procps 010114 2002-02-01 22:47:29 +00:00