Commit Graph

110 Commits

Author SHA1 Message Date
Daniel Lange 94ad111391 Update license headers to explicitly say GPLv2+ 2021-09-22 14:28:19 +02:00
Sohaib Mohamed 6f2021f3d9 PCP: support for 'dynamic columns' added at runtime
Implements support for arbitrary Performance Co-Pilot
metrics with per-process instance domains to form new
htop columns.  The column-to-metric mappings are setup
using configuration files which will be documented via
man pages as part of a follow-up commit.

We provide an initial set of column configurations so
as to provide new capabilities to pcp-htop: including
configs for containers, open fd counts, scheduler run
queue time, tcp/udp bytes/calls sent/recv, delay acct,
virtual machine guests, detailed virtual memory, swap.

Note there is a change to the configuration file path
resolution algorithm introduced for 'dynamic meters'.
First, look in any custom PCP_HTOP_DIR location.  Then
iterate, in priority order, users home directory, then
local sysadmins files in /etc/pcp/htop, then readonly
configuration files below /usr/share/pcp/htop.  This
final location becomes the preferred place for our own
shipped meter and column files.

The Settings file (htoprc) writing code is updated to
not using the numeric identifier for dynamic columns.
The same strategy used for dynamic meters is used here
where we write Dynamic(name) so the name can be setup
once more at start.  Regular (static) columns writing
to htoprc - i.e. numerically indexed - is unchanged.
2021-08-13 07:32:57 +02:00
Christian Göttsche adcedf87f5 FreeBSD: mark the original kernel thread with pid 0 as such 2021-07-18 07:47:16 +02:00
Christian Göttsche 3451b6c6b8 FreeBSD: calculate whether to show entry last
Wait until it has been decided what kind of task the entry actually is.
2021-07-18 07:47:16 +02:00
Christian Göttsche af0b67ccd2 FreeBSD: skip exe check for kernel thread
Kernel threads do not have an executable and the check can result in
garbage values as unprivileged user.
2021-07-18 07:47:16 +02:00
Christian Göttsche 11d2206f40 Add ProcessList_isCPUonline 2021-07-18 07:47:09 +02:00
Christian Göttsche 41af31be7f Rework CPU counting
Currently htop does not support offline CPUs and hot-swapping, e.g. via
    echo 0 > /sys/devices/system/cpu/cpu2/online

Split the current single cpuCount variable into activeCPUs and
existingCPUs.

Supersedes: #650
Related: #580
2021-07-18 07:44:02 +02:00
Benny Baumann 458749df45 Code indentation 2021-07-15 06:57:24 +02:00
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
Benny Baumann 90f42695d2 FreeBSD: Implement CWD column 2021-05-25 21:55:04 +02:00
Christian Göttsche 4da618030c FreeBSD: add EXE and COMM columns and use merged command line helpers 2021-05-23 09:22:21 +02:00
Benny Baumann a61a2e6d47 Call makeCommandStr on all platforms 2021-05-23 09:22:21 +02:00
Benny Baumann 7224d0e083 Move kernel/userland thread handling to platform-independent implementation 2021-05-23 09:22:21 +02:00
Benny Baumann 94a52cb5c9 Rename cmdlineBasenameOffset to cmdlineBasenameEnd to properly indicate the fields purpose 2021-05-23 09:22:21 +02:00
Benny Baumann b839987df7 Rename basenameOffset to cmdlineBasenameOffset 2021-05-23 09:22:21 +02:00
Benny Baumann 02431c43e1 Rename command line field from comm to cmdline 2021-05-23 09:22:21 +02:00
mayurdahibhate 3f86a011e6 platform-dependent files included relative to main source directory 2021-05-10 18:40:53 +02:00
Christian Göttsche 99cde7edec FreeBSD: silence unsigned integer underflow
freebsd/FreeBSDProcessList.c:252:47: runtime error: unsigned integer overflow: 0 - 1 cannot be represented in type 'unsigned int'
      #0 0x397c32 in FreeBSDProcessList_scanCPU /root/workspace/htop/htop/freebsd/FreeBSDProcessList.c:252:47
      #1 0x38fe76 in ProcessList_goThroughEntries /root/workspace/htop/htop/freebsd/FreeBSDProcessList.c:438:4
      #2 0x35ef9a in ProcessList_scan /root/workspace/htop/htop/ProcessList.c:618:4
      #3 0x31ee9e in main /root/workspace/htop/htop/htop.c:468:4
      #4 0x26bbcf in _start /usr/src/lib/csu/amd64/crt1.c:76:7
2021-04-14 17:29:56 +02:00
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
Alexander Nedotsukov 5afb57b49e FreeBSD: improve actual processor calculation logic 2021-03-30 23:38:32 +02:00
Christian Göttsche a11d01568c Use unsigned types for CPU counts and associated variables 2021-03-19 23:30:54 +01:00
Graham Inggs ee97916fd5
Merge pull request #436 from cgzones/freebsd
FreeBSD: add support for CPU frequency and temperature
Tested on two physical systems running FreeBSD 12.1
2021-03-18 14:03:51 +02:00
Nathan Scott adaf748ab6 Fix include file ordering of generic headers 2021-03-04 13:44:40 +11:00
Nathan Scott 61ef1134d9 Move generic (shared) code into its own sub-directory
Code that is shared across some (but not all) platforms
is moved into a 'generic' home. Makefile.am cleanups to
match plus some minor alphabetic reordering/formatting.

As discussed in https://github.com/htop-dev/htop/pull/553
2021-03-04 13:40:59 +11:00
Christian Göttsche fd2a0cf421 FreeBSD: add support for CPU frequency and temperature 2021-02-05 16:32:25 +01:00
Christian Göttsche 04cf590967 FreeBSD: drop minflt and implement majflt 2021-01-30 14:21:26 +01:00
Christian Göttsche 46370231e3 FreeBSD: drop unused idle thread code 2021-01-30 14:21:26 +01:00
Christian Göttsche 8c43856380 FreeBSD: populate processor field 2021-01-30 14:21:26 +01:00
Christian Göttsche 79620d01c0 FreeBSD: drop unused jail_errmsg variable 2021-01-30 14:21:26 +01:00
Christian Göttsche 399add39ca FreeBSD: simplify kernel thread logic 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 Göttsche fa499fc155 FreeBSD: misc 2021-01-30 14:21:26 +01:00
Christian Göttsche 78b993dbb4 kfreeBSD: include config.h for _GNU_SOURCE (part 2)
strcasestr(3) is a GNU extension and when compiling freebsd/Platform.c
on kfreebsd for Debian <string.h> is included before we define
_GNU_SOURCE, so the function is not available.

In file included from ./Object.h:16,
                 from ./ListItem.h:12,
                 from ./Meter.h:16,
                 from ./Header.h:10,
                 from ./Action.h:15,
                 from freebsd/Platform.h:13,
                 from freebsd/Platform.c:8:
./XUtils.h: In function ‘String_contains_i’:
./XUtils.h:43:11: warning: implicit declaration of function ‘strcasestr’; did you mean ‘strcasecmp’? [-Wimplicit-function-declaration]
   43 |    return strcasestr(s1, s2) != NULL;
      |           ^~~~~~~~~~
      |           strcasecmp
./XUtils.h:43:30: warning: comparison between pointer and integer
   43 |    return strcasestr(s1, s2) != NULL;
      |                              ^~
In file included from ./Object.h:16,
                 from ./ProcessList.h:16,
                 from freebsd/FreeBSDProcessList.h:15,
                 from freebsd/FreeBSDProcessList.c:8:
./XUtils.h: In function ‘String_contains_i’:
./XUtils.h:43:11: warning: implicit declaration of function ‘strcasestr’; did you mean ‘strcasecmp’? [-Wimplicit-function-declaration]
   43 |    return strcasestr(s1, s2) != NULL;
      |           ^~~~~~~~~~
      |           strcasecmp
./XUtils.h:43:30: warning: comparison between pointer and integer
   43 |    return strcasestr(s1, s2) != NULL;
      |                              ^~
2021-01-12 19:05:46 +01:00
Christian Göttsche a5db139a0a Linux: use correct column alignment for wide fields
This affects:
- PROC_COMM, PROC_EXE and CWD on Linux
- JAIL on FreeBSD and DragonFlyBSD
- ZONE on Solaris
2021-01-11 12:02:25 +01:00
Christian Göttsche d800d7a3ce Drop usage of formatted error messages from <err.h>
They do not clean up the ncurses environment, leaving the terminal in a
broken state.

Also drop bare usage of exit(3).
2021-01-07 16:10:05 +01:00
Graham Inggs 28bc087d8a Drop redundant sys/dirent.h include
sys/dirent.h is included by dirent.h in FreeBSD, and does not exist in Debian GNU/kFreeBSD
2020-12-11 20:57:19 +01:00
Nathan Scott 75e9f9a8d9 Cull the definitions of pageSize and pageSizeKB from CRT.c
By storing the per-process m_resident and m_virt values in the form
htop wants to display them in (KB, not pages), we no longer need to
have definitions of pageSize and pageSizeKB in the common CRT code.

These variables were never really CRT (i.e. display) related in the
first place.  It turns out the darwin platform code doesn't need to
use these at all (the process values are extracted from the kernel
in bytes not pages) and the other platforms can each use their own
local pagesize variables, in more appropriate locations.

Some platforms were actually already doing this, so this change is
removing duplication of logic and variables there.
2020-12-10 11:57:48 +11:00
Nathan Scott f704baeb82 Drop unused global ProcessList memory fields
The global ProcessList structure contains a couple of unused
fields.  'sharedMem' has never been used by any Meter, since
its not been anything other than zero in Linux /proc/meminfo
for many, many years.  The freeMem field is only used in the
usedMem calculation, so it can reside on the stack like some
other memory variables used within-calculations-only and not
exposed to the user via a Meter.
2020-11-27 07:55:58 +01:00
Benny Baumann ddda739cb2 Simplify code flow by inlining declarations where they are used
Note that xStrdup always returns non-NULL, thus the one error case cannot be reached.
2020-11-22 10:07:01 +01:00
Benny Baumann 3cb96f1a36 No need to check for change when no action is required 2020-11-22 10:04:54 +01:00
Christian Göttsche 0f4e3ebc95 Simplify page size related calculations 2020-11-21 19:39:45 +01:00
Christian Göttsche fa002c0ba9 Rename virtual memory column from M_SIZE to M_VIRT
Closes: #325
2020-11-21 19:39:45 +01:00
Christian Goettsche f5c3349bdb IWYU update (FreeBSD) 2020-11-19 23:51:50 +01:00
Benny Baumann 45869513bf Embracing branches 2020-11-02 22:15:01 +01:00
Benny Baumann 61e14d4bb2 Spacing around operators 2020-11-02 22:15:01 +01:00
Benny Baumann b23f8235e2 Whitespace and indentation issues 2020-11-02 22:15:01 +01:00
Benny Baumann 374edb9ed5 Spacing after keywords (if) 2020-11-02 22:14:59 +01:00
Christian Göttsche bbf01054bf Add compat wrapper for fstatat 2020-10-29 22:21:42 +01:00
Christian Göttsche 049046c700 FreeBSD: update Process 2020-10-29 22:21:42 +01:00
Christian Göttsche 97ea45ca9a FreeBSD: update ProcessList 2020-10-29 22:21:42 +01:00