Commit Graph

30 Commits

Author SHA1 Message Date
Nathan Scott f0ed0fdafb Add a new DynamicMeter class for runtime Meter extension
This commit is based on exploratory work by Sohaib Mohamed.
The end goal is two-fold - to support addition of Meters we
build via configuration files for both the PCP platform and
for scripts ( https://github.com/htop-dev/htop/issues/526 )

Here, we focus on generic code and the PCP support.  A new
class DynamicMeter is introduced - it uses the special case
'param' field handling that previously was used only by the
CPUMeter, such that every runtime-configured Meter is given
a unique identifier.  Unlike with the CPUMeter this is used
internally only.  When reading/writing to htoprc instead of
CPU(N) - where N is an integer param (CPU number) - we use
the string name for each meter.  For example, if we have a
configuration for a DynamicMeter for some Redis metrics, we
might read and write "Dynamic(redis)".  This identifier is
subsequently matched (back) up to the configuration file so
we're able to re-create arbitrary user configurations.

The PCP platform configuration file format is fairly simple.
We expand configs from several directories, including the
users homedir alongside htoprc (below htop/meters/) and also
/etc/pcp/htop/meters.  The format will be described via a
new pcp-htop(5) man page, but its basically ini-style and
each Meter has one or more metric expressions associated, as
well as specifications for labels, color and so on via a dot
separated notation for individual metrics within the Meter.

A few initial sample configuration files are provided below
./pcp/meters that give the general idea.  The PCP "derived"
metric specification - see pmRegisterDerived(3) - is used
as the syntax for specifying metrics in PCP DynamicMeters.
2021-07-07 10:59:36 +10:00
Christian Göttsche 9a8221568a Rework TTY column
* Rename internal identifier from TTY_NR to just TTY
* Unify column header on platforms
* Use devname(3) on BSD derivate to show the actual terminal,
  simplifies current FreeBSD implementation.
* Use 'unsigned long int' as id type, to fit dev_t on Linux.

Only on Solaris the terminal path is not yet resolved.
2021-04-14 17:29:56 +02:00
Christian Göttsche fd2a0cf421 FreeBSD: add support for CPU frequency and temperature 2021-02-05 16:32:25 +01:00
Christian Göttsche 79620d01c0 FreeBSD: drop unused jail_errmsg variable 2021-01-30 14:21:26 +01:00
Christian Göttsche 56c4055fd1 FreeBSD: drop unused ProcessList fields 2021-01-30 14:21:26 +01:00
Christian Goettsche f5c3349bdb IWYU update (FreeBSD) 2020-11-19 23:51:50 +01:00
Benny Baumann 61e14d4bb2 Spacing around operators 2020-11-02 22:15:01 +01:00
Christian Göttsche 97ea45ca9a FreeBSD: update ProcessList 2020-10-29 22:21:42 +01:00
Christian Goettsche 88eec2dc00 FreeBSD: rework tty process column 2020-10-29 22:21:42 +01:00
Christian Göttsche 61bae4c9d2 Unify function argument names
Name first argument of ProcessList_goThroughEntries consistently super
Name first argument of ProcessList_new consistently userTable
2020-10-28 19:57:10 +01:00
Christian Göttsche f8208f2173 Drop tabs in source indentions 2020-10-20 21:43:36 +02:00
Christian Göttsche 96e2a4259e Continue to update generic data in paused mode
Generic data, as CPU and memory usage, are used by Meters.
In paused mode they would stop receiving updates and especially Graph
Meters would stop showing continuous data.

Improves: #214
Closes: #253
2020-10-19 14:45:39 +02:00
Benny Baumann 0f5262917f Make all required includes explicit
Information as seen by IWYU 0.12 + clang 9 on Linux
2020-10-18 20:09:05 +02:00
Daniel Lange 079c2abf8e Update License consistently to GPLv2 as per COPYING file 2020-10-05 10:13:12 +02:00
Nathan Scott 4597332959 Switch variable/field naming from WhiteList to MatchList 2020-09-09 19:38:15 +10:00
Nathan Scott 8ec5d4a3a0 Further, minor cleanups to headers post-MakeHeaders
Remove leftover empty ifdef/endif pairs, whitespace.
The generated htop.h file was also unused - removed.
2020-09-08 17:33:50 +10:00
Zev Weiss 7758ffcdea Remove duplicate jail_errmsg declaration.
Fixes: 11ecc65ebb
2020-09-03 12:00:21 -05:00
Zev Weiss 7b7822b896 Remove superfluous 'extern's from function declarations.
Applied via:

  $ find * -name '*.h' -exec sed -i -r 's/^extern (.+\()/\1/;' {} +

Suggested-by: Bert Wesarg <bert.wesarg@googlemail.com>
2020-09-03 11:59:26 -05:00
Zev Weiss a1a027b9bd Axe automated header generation.
Reasoning:
 - implementation was unsound -- broke down when I added a fairly
   basic macro definition expanding to a struct initializer in a *.c
   file.

 - made it way too easy (e.g. via otherwise totally innocuous git
   commands) to end up with timestamps such that it always ran
   MakeHeader.py but never used its output, leading to overbuild noise
   when running what should be a null 'make'.

 - but mostly: it's just an awkward way of dealing with C code.
2020-09-03 11:58:58 -05:00
Tobias Kortkamp 11ecc65ebb
Unbreak with -fno-common on FreeBSD
GCC10 and Clang11 now default to -fno-common.

ld: error: duplicate symbol: jail_errmsg
>>> defined at Platform.c
>>>            freebsd/Platform.o:(jail_errmsg)
>>> defined at FreeBSDProcessList.c
>>>            freebsd/FreeBSDProcessList.o:(.bss+0x90)

Signed-off-by: Tobias Kortkamp <t@tobik.me>
2020-09-03 08:42:18 +02:00
Ross Williams a88d2e313d Refactor common OpenZFS sysctl access
Darwin and FreeBSD export zfs kstats through the
same APIs, so moving functions into a common file.
2019-07-07 23:10:54 -04:00
Ross Williams a93edde1a2 Support ZFS ARC stats on FreeBSD
New meter displays same ARC stats as FreeBSD top(1).
Can be extended to other platforms that support ZFS.

Pulling kstat.zfs.misc.arcstats.c_max as the meter
total, so the meter has a meaningful value to work
up to.

The Text meter displays, first, the maximum
ARC size (Meter.total), then second, the total
ARC used, using the difference between Meter.maxItems
and Meter.curItems to "hide" the used value from the
Bar and Graph drawing functions by using an index
in Meter.values[] that is beyond curItems - 1, but
less than maxItems - 1.
2019-07-07 22:52:04 -04:00
Hisham Muhammad db80f202f2 Avoid global, as done by @gaod in #387. 2016-03-07 16:58:02 -03:00
Hisham 21da044fb4 Add generated header. 2016-01-31 17:41:55 +01:00
Hisham Muhammad 78f2933e2b Regenerate platform-dependent headers.
Closes #293.
2015-10-19 17:22:54 -02:00
Hisham Muhammad 272e2d9b34 Major advances in FreeBSD port. 2015-03-16 23:02:03 -03:00
Hisham Muhammad adbfe3c3f1 Get FreeBSD tree to compile again with latest changes. 2015-03-16 03:14:20 -03:00
Hisham Muhammad 0aa485cf47 Reading swap data! 2014-11-27 18:31:39 -02:00
Hisham Muhammad 28712f22b1 Reading first bits of data! 2014-11-27 17:44:55 -02:00
Hisham Muhammad 8915b29395 Beginnings of FreeBSD port! 2014-11-27 16:27:34 -02:00