Commit Graph

67 Commits

Author SHA1 Message Date
Benny Baumann f75a8bc3a1 Memory leak on OpenBSD when querying full command line 2021-10-03 19:18:25 +02:00
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 edf236f9fc OpenBSD: support offline CPUs and hot-swapping 2021-07-18 07:58:50 +02:00
Christian Göttsche f608fc5c8a OpenBSD: fix compile errors
openbsd/OpenBSDProcessList.c:176:56: error: no member named 'ki_pid' in 'struct kinfo_proc'; did you mean 'p_pid'?
   const int mib[] = { CTL_KERN, KERN_PROC_CWD, kproc->ki_pid };
                                                       ^~~~~~
                                                       p_pid
/usr/include/sys/sysctl.h:375:10: note: 'p_pid' declared here
        int32_t p_pid;                  /* PID_T: Process identifier. */
                ^
openbsd/OpenBSDProcessList.c:458:33: error: comparison of integers of different signs: 'int' and 'unsigned int' [-Werror,-Wsign-compare]
      if (opl->cpus[i].cpuIndex == id)
          ~~~~~~~~~~~~~~~~~~~~~ ^  ~~
2021-07-18 07:53:03 +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 0d85af2872 Whitespace around operators 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
fraggerfox 2f5b3ef733 Refactor saturatingSub() to be part of Macros.h 2021-06-26 12:18:37 +02:00
Benny Baumann d2a476cddb OpenBSD: Always update username 2021-06-22 09:32:11 +02:00
Benny Baumann 5e92956abc OpenBSD: Implement CWD column 2021-05-25 21:55:04 +02:00
Christian Göttsche d445676f09 OpenBSD: add COMM column 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
Stuart Henderson feec16cbb5 don't include offline CPUs in summary for OpenBSD
By default, OpenBSD disables SMT (hyperthreading) cpu pseudo-cores.
This can be changed at runtime by setting the hw.smt sysctl so they
may become active later, therefore they are still present in cpu
stat structures but are marked as offline.

As done with native top(1), this drops them from the cpu summary
graphs.
2021-04-18 16:58:20 +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
Daniel Lange 6ea93fc6c0 Merge branch 'openbsd' of cgzones/htop 2021-03-21 17:48:41 +01:00
Christian Göttsche e4e3f6c390 OpenBSD: update
* Set process data for:
    - minflt
    - majflt
    - processor
    - nlwp

* Drop unimplemented nlwp column

* Scan userland threads

* Mark a 'Thread is currently on a CPU.' with 'R', and processes
  'Currently runnable' with 'P', do confine with man:ps(1) and Linux.
  See https://man.openbsd.org/ps.1

* Show CPU frequency
2021-03-20 18:30:08 +01:00
Christian Göttsche a11d01568c Use unsigned types for CPU counts and associated variables 2021-03-19 23:30:54 +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
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
Christian Göttsche 57d9ecc551 OpenBSD update
- compilation failures like `return &this->this;` -> `return &this->super;`
- iwyu update
- misc cleanup
2020-12-06 16:20:55 +01:00
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 03f9a86918 Reduce scope of local variables 2020-11-22 10:08:27 +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
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
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 a3bb7cbe64 Hold only a const version of Settings in ProcessList 2020-10-26 19:30:38 +01:00
Christian Göttsche 4eb443926f Hold only a const version of Settings in Process 2020-10-26 19:30:38 +01:00
Daniel Lange 9f1a9ab2c2 Merge branch 'header_pause' of cgzones/htop
Continue to update generic data in paused mode
2020-10-20 10:17:58 +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
Christian Göttsche 361877454f Cache PAGE_SIZE
man:sysconf(3) states:
    The values obtained from these functions are system configuration constants.
    They do not change during the lifetime of a process.
2020-10-19 14:42:35 +02:00
Christian Göttsche a63cfc8b7c Refactor generating starttime string into Process class 2020-10-16 19:23:40 +02:00
Benny Baumann 4a78f4bb92 Some more locations for ARRAYSIZE 2020-10-08 15:37:03 +02:00
Daniel Lange 079c2abf8e Update License consistently to GPLv2 as per COPYING file 2020-10-05 10:13:12 +02:00
Stephen Gregoratto fd4ada416d fix building on openbsd due to remaining WhiteList 2020-09-14 13:18:40 +10:00
Nathan Scott 4597332959 Switch variable/field naming from WhiteList to MatchList 2020-09-09 19:38:15 +10:00
Nathan Scott c5808c56db Consolidate repeated macro definitions into one header
The MIN, MAX, CLAMP, MINIMUM, and MAXIMUM macros appear
throughout the codebase with many re-definitions.  Make
a single copy of each in a common header file, and use
the BSD variants of MINIMUM/MAXIMUM due to conflicts in
the system <sys/param.h> headers.
2020-09-09 16:56:04 +10:00
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
Christian Göttsche b92f62f912 Remove trailing whitespaces 2020-08-21 10:37:33 +02:00
Antoine Motet 9197adf57e Fix CPU usage on OpenBSD
The current OpenBSD-specific CPU usage code is broken. The `cpu`
parameter of `Platform_setCPUValues` is an integer in the interval
[0, cpuCount], not [0, cpuCount-1]: Actual CPUs are numbered from
1, the “zero” CPU is a “virtual” one which represents the average
of actual CPUs (I guess it’s inherited from Linux’s `/proc/stats`).
This off-by-one error leads to random crashes.

Moreover, the displayed CPU usage is more detailed with system,
user and nice times.

I made the OpenBSD CPU code more similar to the Linux CPU code,
removing a few old bits from OpenBSD’s top(1). I think it will be
easier to understand, maintain and evolve.

I’d love some feedback from experienced OpenBSD people.
2018-12-16 11:30:06 +01:00
multiplexd ca1cce4ce7 OpenBSD: make the STARTTIME column display correctly (#815) 2018-08-19 01:09:08 -03:00
Hisham Muhammad 4ad7aa6432 Merge branch 'openbsd-mem-used' of https://github.com/juanfra684/htop into juanfra684-openbsd-mem-used 2016-03-07 15:03:18 -03:00
Michael McConville 4b780a3499 A few more OpenBSD fixes
Namely:

 o use malloc where an xCalloc slipped in

 o safeguard against an empty arg list - I don't think it's possible,
   but it would be potentially exploitable

 o we need to initialize the arg string to an empty string because we no
 longer use strlcpy(3)

 o annotate a tricky use of strlcpy(3)'s truncation
2016-03-05 23:38:12 -05:00