Commit Graph

243 Commits

Author SHA1 Message Date
Silke Hofstra 696f79fe50 Dynamically scale the ST_UID size to support 32-bit UIDs
While most Unix-like systems use 16-bit user IDs,
Linux supports 32-bit UIDs since version 2.6.
UIDs above 65535 are used for UID namespacing of containers,
where a container has its own set of 16-bit user IDs.
Processes in such containers will have (much) larger UIDs than 65535.

Because the current format strings for `ST_UID` and `USER`
are `%5d` and `%9d` respectively, processes with such UIDs
lead to misaligned columns.

Dynamically scale the `ST_UID` column and increase the size of `USER`
to 10 characters (length of UINT32_MAX) to ensure that the user ID always fits.

Additionally: clean up how the titlebuffer size calculation and ensure
the PID column has a minimum size of 5.
2021-10-27 21:20:59 +02:00
Benny Baumann b7248f6cb8 Handle procExeDeleted & usesDeletedLib without mergedCommandline mode 2021-10-07 08:42:08 +02:00
Daniel Lange 94ad111391 Update license headers to explicitly say GPLv2+ 2021-09-22 14:28:19 +02:00
Nathan Scott be82448bd5
Process_printPercentage using one color transition
Update Process_printPercentage such that color change happens only once at 100% and beyond.
2021-09-14 11:16:34 +10:00
Benny Baumann 3f805cf347 Highlight large percentages similar to large memory columns 2021-09-05 18:49:05 +02:00
Hisham Muhammad 556d7c03e8 Add a Process_printPercentage helper routine
Replace several open-coded variants of percentage formatting.
This function has been ported from Hishams old 'next' branch.
2021-09-05 18:47:07 +02:00
Christian Göttsche 0580dbb202 NetBSD: color process state P as running
On NetBSD state 'R' means runnable not running.

Improve the color identifier name accordingly.
2021-09-03 12:17:45 +02:00
Christian Göttsche 5dec9475bb Use break inside loop with false condition
Found by clang-tidy.

    home/christian/Coding/workspaces/htop/Process.c:505:13: warning: 'continue' in loop with false condition is equivalent to 'break' [bugprone-terminating-continue]
               WRITE_HIGHLIGHT(0, strlen(procComm), commAttr, CMDLINE_HIGHLIGHT_FLAG_COMM);
               ^
    /home/christian/Coding/workspaces/htop/Process.c:461:13: note: expanded from macro 'WRITE_HIGHLIGHT'
                continue;                                                                         \
                ^
2021-08-22 17:53:21 +02:00
Christian Göttsche ce27f8379d Respect "Show custom thread names" setting update
Update merged command-line when started with "Show custom thread names"
disabled and enabling at runtime.

Also only consider showThreadNames when working on userland threads.
2021-08-14 17:05:00 +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
Daniel Lange ed82ce6456 Merge branch 'cpu_count' of cgzones/htop 2021-08-02 15:21:07 +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 7bfd62b8e4 Respect "Show custom thread names" setting 2021-07-17 20:59:50 +02:00
Benny Baumann 976c6123f4 Pointer indication aligned to typename 2021-07-15 06:57:24 +02:00
Benny Baumann 0d85af2872 Whitespace around operators 2021-07-15 06:57:24 +02:00
Benny Baumann 458749df45 Code indentation 2021-07-15 06:57:24 +02:00
Benny Baumann de1d06300d Apply stale lib highlighting for EXE too 2021-06-11 09:04:23 +02:00
Christian Göttsche 9114cf6ea3 Linux: update process uid on change
Always check if the user of a process changed, e.g. by using setuid(2).
2021-06-09 22:52:18 +02:00
Christian Göttsche 8154125d4b Check processes for using deleted shared libraries
Shared libraries can be replaced by an upgrade, highlight processes
using deleted shared libraries.

Link with highlightDeletedExe setting, enabled by default.

Currently only checked on Linux.
2021-06-09 14:40:04 +02:00
Benny Baumann b6ff5c8a2e Move CWD field handling to platform-neutral code 2021-05-25 21:55:04 +02:00
Christian Göttsche c408add108 Linux: add reset to heuristic
On hard to parse command lines tokenStart might be computed to be bigger
than tokenEnd.
Reset both values in such cases.
2021-05-25 18:20:09 +02:00
Christian Göttsche 550a141860 Add ELAPSED process column
Add process columns showing the elapsed time since the process was
started.
Similar to STARTTIME, but shows the time passed since the process start
instead of the fixed start time of the process.

Closes https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=782636
2021-05-23 15:43:23 +02:00
Benny Baumann bf07c713ba Allow for highlighting of deleted executables to be configured
Fixes #383
2021-05-23 09:30:36 +02:00
Christian Göttsche 05fb681d5c Process: add convenience helper functions to update merged command line related data 2021-05-23 09:22:21 +02:00
Benny Baumann 7ef58f2dcf Drop mc->maxLen field 2021-05-23 09:22:21 +02:00
Benny Baumann 2824e2989a Reduce code duplication for nearly identical code-paths 2021-05-23 09:22:21 +02:00
Benny Baumann 9a78155e17 Properly brace macro arguments 2021-05-23 09:22:21 +02:00
Benny Baumann aa8552ba88 Move PROC_COMM/PROC_EXE column handling to global Process implementation 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 bcb18ef822 Move Process_makeCommandStr to global Process implementation 2021-05-23 09:22:21 +02:00
Benny Baumann c0d0202440 Move LinuxProcess_getCommandStr to Process_getCommandStr 2021-05-23 09:22:21 +02:00
Benny Baumann cdb660adab Move mergeCommand to global process struct 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 d74e8b7554 Move procComm and procExe to main Process structure 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 1b74dfe187 cleaned up includes with iwyu 2021-05-10 18:40:53 +02:00
Christian Göttsche b41e4d9c54 Rework process field print functions
Make functions formatting data for a process field column less error
prone, unify interfaces and improve some internals.

* Process_printBytes
  - rename from Process_humanNumber
  - take number in bytes, not kilobytes
  - handle petabytes
  - increase buffer to avoid crashes when the passed value is
    ~ ULLONG_MAX

* Process_printKBytes
  - add wrapper for Process_printBytes taking kilobytes keeping -1 as
  special value

* Process_printCount
  - rename from Process_colorNumber

* Process_printTime
  - add coloring parameter as other print functions
  - improve coloring and formatting for larger times

* Process_printRate
  - rename from Process_outputRate
  - use local buffer instead of passed one; this function prints to the
    RichString after all
2021-04-26 18:02:58 +02:00
Christian Göttsche a2be57d768 Process: print default buffer in ascii
`RichString_appendWide()` is more expensive than
`RichString_appendAscii()` due to the calls to `mbstowcs(3)` and
`iswprint(3)`.

Use the latter to print the process field buffer by default.

For the following fields this theoretically can corrupt the output:
  - TTY
2021-04-26 17:51:45 +02:00
Christian Göttsche 615fc934ff Add assert for unreachable switch case
Like the default case in Process_writeField()
2021-04-21 20:58:28 +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
Christian Göttsche 36880cd61c Add read-only option
Add command line option to disable all system and process changing
features.
2021-04-14 17:21:43 +02:00
David Zarzycki f3d9ecaa62 Convert process time to days if applicable
With big multicore machines, it's easy to accumulate process time.
2021-04-10 14:43:23 +02:00
Nathan Scott 356488aa53 Request the realtime and monotonic clock times once per sample
Refactor the sample time code to make one call to gettimeofday
(aka the realtime clock in clock_gettime, when available) and
one to the monotonic clock.  Stores each in more appropriately
named ProcessList fields for ready access when needed.  Every
platform gets the opportunity to provide their own clock code,
and the existing Mac OS X specific code is moved below darwin
instead of in Compat.

A couple of leftover time(2) calls are converted to use these
ProcessList fields as well, instead of yet again sampling the
system clock.

Related to https://github.com/htop-dev/htop/pull/574
2021-04-05 23:41:07 +02:00
Christian Göttsche 1e806f9899 RichString: do not unnecessarily clean whole buffer
The local stack buffer does not need to be cleaned to zeros when
  - just initialized, cause the length is set to 0 and the first
    character is set to '\0', so all printing functions will safely stop
  - no further used, i.e. the variable goes out of scope
2021-03-17 15:54:17 +01:00
Christian Göttsche 3f99c2de24 Process: do not access RichString internals
Use wrapper macro to encapsulate the RichString structure
2021-03-12 16:46:04 +01:00
Christian Göttsche bea7f8e7af Process_compare: reorder checks
Check for result being 0 first, before checking if the result might be
negated, so we do not need to negate 0.
2021-03-12 16:44:46 +01:00
Christian Göttsche 979aca98cc Use uppercase floating point literal suffix 2021-03-02 22:03:20 +01:00
Benny Baumann 82157f598e Refactor to remove no-op calls
This removes the call-sites of the removed setuid feature
2021-02-17 15:59:50 +01:00
Christian Göttsche fdaa15bd8d Linux: overhaul io process fields
- avoid UBSAN conversions
- print N/A on no data (i.e. as unprivileged user)
- fix rate calculation to show bytes (instead of a thousandth)
- print bytes as human number (i.e. 8MB) instead of 8388608
- stabilize sorting by adjusting NAN values to very tiny negative number
2021-01-30 14:21:26 +01:00