Commit Graph

199 Commits

Author SHA1 Message Date
Christian Göttsche a850d81bf5 Avoid use of uninitialized variables
Found by Coverity
2020-08-28 16:46:50 +02:00
Christian Göttsche 05a5fdc47f Ignore sscanf return value of /proc/stat
Found by Coverity
2020-08-28 16:46:50 +02:00
Christian Göttsche af84d3dfa9 Fail on out-of-range CPU number
Found by Coverity
2020-08-28 16:46:50 +02:00
Christian Göttsche d9a5dd4b91 Improve OOM output
* Fix sort by adding cast
* Shrink column size to 4
* Drop unnecessary maximum field width specifier in sscanf
2020-08-28 14:24:59 +02:00
Christian Göttsche a48ce9d103 Really tell gcc to ignore return value of fscanf 2020-08-28 13:10:41 +02:00
Nathan Scott b992d52bcf Increae the size of sysfs power supply path buffers
Resolves https://github.com/htop-dev/htop/issues/15
2020-08-28 16:57:21 +10:00
Christian Göttsche 4e2b9f0965 Avoid shadowing warnings 2020-08-25 12:01:56 +02:00
Christian Göttsche 6b11769448 Avoid conversion warning
linux/Platform.c:47:90: error: implicit conversion from ‘enum LinuxProcessFields’ to ‘enum ProcessFields’ [-Werror=enum-conversion]
       47 | ProcessField Platform_defaultFields[] = { PID, USER, PRIORITY, NICE, M_SIZE, M_RESIDENT, M_SHARE, STATE, PERCENT_CPU, PERCENT_MEM, TIME, COMM, 0 };
          |
2020-08-25 11:59:53 +02:00
Nathan Scott 6900e57efd Updates to project URLs in docs and embedded in source code 2020-08-22 15:47:11 +10:00
Nathan Scott 5dad65ac2a Update header files to match whitespace changes in source files 2020-08-22 15:46:31 +10:00
Christian Göttsche b92f62f912 Remove trailing whitespaces 2020-08-21 10:37:33 +02:00
Christian Göttsche 3856bf574b Introduce xAsprintf as checked version of asprintf 2020-08-21 10:37:29 +02:00
Nathan Scott 9a55efc8b5 Merge branch 'hishamhm-pull-920' 2020-08-20 18:24:35 +10:00
Nathan Scott 31391b206c Merge branch 'hishamhm-pull-1012' 2020-08-20 15:51:21 +10:00
Nathan Scott fed14a584d Merge branch 'hishamhm-pull-970' 2020-08-20 15:33:30 +10:00
Nathan Scott 6b443c5da9 Merge branch 'hishamhm-pull-932' 2020-08-20 14:47:07 +10:00
Nathan Scott a82fd262d7 Merge branch 'hishamhm-pull-960' 2020-08-20 14:19:53 +10:00
Nathan Scott cdff8aea2a Merge branch 'hishamhm-pull-946' 2020-08-20 14:13:07 +10:00
Nathan Scott 0f76359e4e Merge branch 'hishamhm-pull-890' 2020-08-20 14:01:47 +10:00
Nathan Scott 2be0992700 Merge branch 'hishamhm-pull-890' 2020-08-20 14:00:13 +10:00
Nathan Scott 45ae6191c1 Merge branch 'hishamhm-pull-866' 2020-08-20 12:29:25 +10:00
Nathan Scott e7d2f9383a Merge branch 'hishamhm-pull-857' 2020-08-20 09:47:13 +10:00
Nathan Scott 500fb283e9 Resolve compiler warnings and errors relating to the Arg union
Promote the Arg union to a core data type in Object.c such
that it is visible everywhere (many source files need it),
and correct declarations of several functions that use it.

The Process_sendSignal function is also corrected to have
the expected return type (bool, not void) - an error being
masked by ignoring this not-quite-harmless warning.  I've
also added error checking to the kill(2) call here, which
was previously overlooked / missing (?).
2020-08-20 09:35:33 +10:00
Nathan Scott eef6bc447d Correction to smaps buffer size passed to smaps path snprintf 2020-08-19 17:50:43 +10:00
Nathan Scott f9625cacf0 Merge branch 'hishamhm-pull-843' 2020-08-19 17:47:38 +10:00
Nathan Scott 7ac1c709b7 Re-generate all headers with latest scripts/MakeHeader.py
Sync-up missing extern declarations for many functions.
2020-08-18 17:41:49 +10:00
Nathan Scott 579995c7c2 Merge branch 'hishamhm-pull-842' 2020-08-18 17:35:56 +10:00
Nathan Scott dfd9279f87 Resolve complation issues with -fno-common (default from gcc-10)
Extends the MakeHeader script to auto-generate correct "extern"
function declarations in some cases that it currently does not.

Related to https://github.com/hishamhm/htop/pull/981
2020-07-10 10:35:32 +10:00
Christoph Budziszewski 7fdd8d3732 adding support for more than 2 smaller cpumeter columns 2020-06-11 23:21:52 +02:00
Jure Oder 88c9ebb8f7 Properly identify zombie processes
This closes issue #930.
2019-12-14 11:47:03 +01:00
Daniel Flanagan dd33444f7e Clean up existing whitespace 2019-10-31 11:39:12 -05:00
smattie 1886117c72 Linux: fixes sysfs battery discovery 2019-09-07 15:21:04 +01:00
Ross Williams a267003f2f Linux fixes 2019-09-03 19:56:38 +00:00
Ross Williams 613556faeb Support for ZFS Compressed ARC statistics 2019-09-03 18:44:19 +00:00
Ross Williams e450b58636 Refactor openzfs_sysctl_init() and ZfsArcMeter...
openzfs_sysctl_init() now returns void instead of int.
The ZfsArcStats->enabled flag is set inside the init function
now, instead of having to be set from its return value.
Preparation for more flag setting in Compressed ARC commit.

ZfsArcMeter_readStats() added and all Meter->values[] setting
moved to it, eliminating duplicated code in
{darwin,freebsd,linux,solaris}/Platform.c.
2019-09-03 18:21:33 +00:00
Arnavion 81b64691a7 Move sysfs-reading code to LinuxProcessList.c and add average frequency.
This way the frequency is read from sysfs only once per update cycle
instead of every time the UI is redrawn.

This also changes the code to read from /proc/cpuinfo instead. This is because
reading from scaling_cur_freq stalls for 10ms if the previous read for the file
was more than one second ago. [1] Since htop's update cycle is
longer than that, it would cause the read of each CPU's scaling_cur_freq file
to block the UI for 20ms. This easily led to a noticeable half-second lag on
a 20+ CPU machine.

/proc/cpuinfo also has a 10ms delay, but this applies for the whole file
so the delay does not scale with the number of CPUs. [2]

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4815d3c56d1e10449a44089a47544d9ba84fad0d
[2]: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=7d5905dc14a87805a59f3c5bf70173aac2bb18f8
2019-08-10 22:19:32 -07:00
Arnavion 1acfb0a752 Show N/A instead of 0KHz when CPU frequency is not available. 2019-08-10 11:37:35 -07:00
Arnavion 4b0600d8f8 Add new display option to also show CPU frequency in CPU meters.
The option is only implemented on Linux. On other platforms, and on Linuxes
that do not expose the relevant sysfs file, the frequency will be 0.

The "CPU average" meter does not show a frequency, only
the individual per-CPU meters.
2019-08-09 21:34:48 -07:00
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 070fe90461 ZFS arcstats for Linux
If no pools are imported (ARC size == 0) or the
ZFS module is not in the kernel (/proc/spl/kstat/zfs/arcstats
does not exist), then the Meter reports "Unavailable".
2019-07-07 22:57:15 -04:00
Alexander Schlarb 078c2ddde5 Linux: Use /proc/*/smaps_rollup for improved PSS parsing speed 2019-03-20 17:00:49 +01:00
Alexander Schlarb fc0bf546c3 Linux: Add PSS (proportional set size), Swap and SwapPSS calculation
Original code was written by *Craig M. Brandenburg* for htop 1.0.2
Many performance improvements by GitHub user *linvinus*, ported to htop 2.0.2
2019-03-20 17:00:41 +01:00
Ran Benita 08feb8585b Add pressure stall information (PSI) meters on Linux
The pressure stall information (PSI) metrics provide useful information
on delays caused by waiting for CPU, IO and memory. Particularly on busy
servers it can provide a quick overview of what's "slowing things down".

This feature is supported on Linux >= 4.20.
The interface is documented here:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/plain/Documentation/accounting/psi.txt
These links provide rationale:
https://lwn.net/Articles/759781/
https://facebookmicrosites.github.io/psi/

The following metrics are added, corresponding to the currently exposed
lines (see `head /proc/pressure/*`):
- PressureStallCPUSome
- PressureStallIOSome
- PressureStallIOFull
- PressureStallMemorySome
- PressureStallMemoryFull

The color scheme is the same as that used for Load Average, however I
gave it separate entries just in case someone wants to change them
specifically.

Tested on 4.20.7-arch1-1-ARCH, on the linux platform.
Also tested that other platforms still compile (changed configure to use
the unsupported platform).

Closes #879.
2019-02-13 22:38:10 +02:00
wangqr da60309fc9 Don't follow process when selecting non-process-specific options
Disable the follow process logic in Action_pickFromVector(), when
selecting sort order or user filter, since they don't apply on specific
process.

Fix #856
2019-02-12 22:15:51 -05:00
Hisham Muhammad 402e46bb82 Linting changes
as reported by lgtm.com
2019-02-10 14:16:46 +01:00
Wataru Ashihara 41754e5632
Remove unnecessary HAVE_SYS_SYSMACROS_H check
HAVE_SYS_SYSMACROS_H is always true if MAJOR_IN_SYSMACROS.

This way of checking is recommended in autoconf 2.70 documentation:
https://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=blobdiff;f=doc/autoconf.texi;h=4f041bd4e;hp=9ad7dc1c5f02c8ba25b2fe1218bf931c7113a5d5;hb=e17a30e987d7ee695fb4294a82d987ec3dc9b974;hpb=565a6dc50cfa01cec2fb4db894026689cdf4970c

NOTE: currently
      https://www.gnu.org/software/autoconf/manual/autoconf.html is the
      doc for autoconf 2.69.
2018-12-15 22:10:06 +09:00
Daniel Lange c34be41e1c Widen ST_UID (UID) column to 5 chars to allow UIDs > 9999 without breaking alignment
Issue Github #841, Debian bug #910492
2018-10-07 11:16:12 +02:00
Hisham Muhammad bae27054e6 Linux: fix CPU count 2018-08-24 18:38:06 -03:00
Hisham Muhammad 8d01ae2054 Linux: remove warnings of unused variables 2018-08-24 18:38:06 -03:00
Shawn Landden bd1d719a61 Linux: add process->starttime and use it for STARTTIME column (#700)
this way a remount of /proc will not reset starttimes
and we can also see startup times for processes started before the mount
of /proc

also record btime (boot time in seconds since epoch) as Linux semi-global
2018-08-19 01:29:03 -03:00
Score_Under d74b6dc8e0 Fix process name updates for shorter strings (#812)
When a process name changes from a long string to a short string,
truncate instead of just overwriting the beginning.
2018-07-28 00:08:40 -03:00
Faster IT e1e3791363 Fix #define to match header when regenerating with MakeHeader.py (#789)
from Debian https://sources.debian.org/src/htop/2.2.0-1/debian/patches/fix-linux-process.patch/
2018-05-22 23:09:20 -03:00
Hisham Muhammad 47cf1532b0 Linux: change how kernel threads are detected
Use the same method that ps and top use to determine if a
process is a kernel thread on Linux: check if cmdline is empty.

Thanks to @wangqr's investigation reported here:
https://github.com/hishamhm/htop/issues/761#issuecomment-375306069

Fixes #761.
2018-03-25 15:26:05 -03:00
Hisham Muhammad ccd156f8ba Updates to generated header files 2018-02-26 11:44:46 -03:00
Kang-Che Sung (宋岡哲) c01f40eb3e Fix build failure ('major' undefined) in glibc 2.28. (#746)
glibc 2.28 no longer defines 'major' and 'minor' in <sys/types.h> and
requires us to include <sys/sysmacros.h>. (glibc 2.25 starts
deprecating the macros in <sys/types.h>.) Now do include the latter if
found on the system.

At the moment, let's also utilize AC_HEADER_MAJOR in configure script.
However as Autoconf 2.69 has not yet updated the AC_HEADER_MAJOR macro
to reflect the glibc change [1], so add a workaround code.

Fixes #663. Supersedes pull request #729.

Reference:
[1] https://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commit;h=e17a30e987d7ee695fb4294a82d987ec3dc9b974

Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
2018-02-26 10:15:05 -03:00
Hisham Muhammad 8c653212c0 Replace size_t with int/void* union
I was occasionally passing negative values to size_t.
Plus, this better reflects the intent of the variant argument.

Reported by Coverity:
https://scan8.coverity.com/reports.htm#v13253/p10402/fileInstanceId=22093891&defectInstanceId=7543346&mergedDefectId=174179&fileStart=251&fileEnd=500
2018-02-18 10:38:49 -03:00
Hisham Muhammad b064d501ae linux/Battery.c: make sure fd is always closed
Detected by Coverity:
https://scan8.coverity.com/reports.htm#v13252/p10402/fileInstanceId=22093957&defectInstanceId=7543348&mergedDefectId=174180
2018-02-18 10:21:22 -03:00
Hisham Muhammad 6dda8d2586 linux/LinuxProcessList.c: Fix indentation. 2018-02-17 20:52:46 -02:00
Marc Kleine-Budde 70ed51a303 linux/LinuxProcessList: fix reading of number of read syscalls of process
The "if" tests if the character at index "5" is 'r', as a first quick
check. However at index "5" will always be a colon ":". This patch fixes
the off-by-one error. htop now shows proper values in the RD_SYSC
column.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-02-17 16:14:34 -02:00
Jan Chren (rindeal) b0588d90ff parseBatInfo: check `line` for NULL before passing it to String_getToken() 2018-02-04 17:04:47 +01:00
Vladimir Panteleev 87be623eac Add support for Linux TASK_IDLE
Linux commit 06eb61844d841d0032a9950ce7f8e783ee49c0d0 ("sched/debug:
Add explicit TASK_IDLE printing") exposes kthreads idling using
TASK_IDLE in procfs as "I (idle)".

Until now, when sorting the STATE ("S") column, htop used the raw
value of the state character for comparison, however that led to the
undesirable effect of TASK_IDLE ('I') tasks being sorted above tasks
that were running ('R').

Thus, explicitly recognize the idle process state, and sort it below
others.
2018-02-04 16:44:21 +01:00
André Carvalho b7b66b76a5 Adds support for linux delay accounting (#667)
Adds support for showing columns with linux delay accounting.

This information can be read from the netlink interface, and thus we set up a socket to read from that when initializing the LinuxProcessList (LinuxProcessList_initNetlinkSocket). After that, for each process we call LinuxProcessList_readDelayAcctData, which sends a message thru the socket after setting up a callback to get the answer from the Kernel. That callback sets the process total delay time attribute. We then set the delay percent as the percentage of time process cpu time since last scan.
2017-12-04 00:15:29 -02:00
Hisham Muhammad 9487bda330 Do not use xSnprintf when the result is used. Fixes #662. 2017-08-01 15:48:43 -07:00
Hisham Muhammad 09e241fb12 Security review: check results of snprintf.
Calls marked with xSnprintf shouldn't fail.
Abort program cleanly if any of them does.
2017-07-27 16:07:50 -03:00
Hisham Muhammad 3975e9ce5c Merge branch 'master' of https://github.com/hishamhm/htop 2017-07-26 16:16:10 -03:00
Hisham Muhammad f205f7004c Use regular readdir since readdir_r is deprecated and newer GCC complains. 2017-07-26 15:35:39 -03:00
Richard d5faf64374 Mark some things as const
Several string pointer arrays pointed to const strings
but were not const themselves.

A few various structures and arrays were also marked const.
2017-07-22 22:34:30 -05:00
Hisham Muhammad e940aecfb9 Add "no perm" status when other fields fail due to lack of permission.
Thanks @Sworddragon for the heads up.
See #88.
2017-07-10 20:57:34 -03:00
Hisham Muhammad 71785e2ded Set idle I/O prio to 0x6007, like ionice.
As suggested by @wolfgang42 in #100.
2017-07-05 15:20:48 -03:00
Hisham Muhammad e9ecbd05bc Use class value only to display idle I/O priority.
As suggested by @wolfgang42. Fixes #100.
2017-07-05 15:18:02 -03:00
Hisham fa30938247 Merge branch 'master' of https://github.com/hishamhm/htop 2017-02-15 22:49:13 -02:00
Hisham bb8dec1582 Cap battery at 100%.
Apparently invalid results can be returned by buggy drivers in old laptops,
as reported by @thukydides. See #596.
2017-02-15 22:47:03 -02:00
Kamyar Rasta 3f6d1262c0 Issue #502 fix SID colunm header width 2017-02-05 00:10:29 +01:00
Kamyar Rasta 84bc00a275 Issue #502 update Session ID column 2017-02-01 00:03:55 +01:00
Hisham 8af4d9f453 Interpret TTY_NR column on Linux,
translate dev_t to major:minor on other platforms.
Closes #316.
2016-10-01 03:09:04 -03:00
Explorer09 1f3d85b617 Mark signal tables 'const'
Specifically, Platform_signals[] and Platform_numberOfSignals. Both are
not supposed to be mutable. Marking them 'const' puts them into rodata
sections in binary. And for Platform_numberOfSignals, this aids
optimization (aids only Link Time Optimization for now). :)

Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
2016-08-30 20:41:17 +08:00
Hisham bd5d37f297 Return when reading cmdline fails (e.g. zombie process) 2016-08-24 18:11:10 -03:00
Explorer09 bf35921abb Optimize Strings_startWith()
Use strncmp() combined with a strlen() will give better performance
than a strstr in worst case. Especially when the match prefix is a
constant and not a variable.

While we are at it, replace the match() function in linux/Battery.c,
which uses a naive algorithm, with a macro that does better job by
utilizing Strings_startWith().

    $ gcc --version | head -n 1
    gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
    $ uname -m
    x86_64
    $ size htop.old htop.new
       text   data    bss    dec    hex filename
     137929  15112   3776 156817  26491 htop.old
     137784  15104   3776 156664  263f8 htop.new

Signed-off-by: Kang-Che Sung <explorer09 @ gmail.com>
2016-08-11 10:49:35 +08:00
Hisham Muhammad 0fa03322a9 Dynamically adjust the size of line reads
* Dynamically adjust the size of line reads.
* Remove some more uses of fgets with arbitrary sizes.
* Fix reading of lines and width of n column.

Fixes #514.
2016-06-19 18:55:35 -03:00
Hisham 1a13b4d0f4 Don't store invisible trailing whitespace 2016-06-15 12:41:50 -03:00
Hisham e77811e99b any of these values may wrap 2016-02-29 21:57:03 -03:00
Hisham 797bcd0961 Catch invalid IO values due to no permissions.
Display them properly. Not fully convinced of the "no perm" message...
2016-02-20 02:23:26 -02:00
Hisham baec4bdcb0 Try to retain last full name of a zombie process.
Once a process goes zombie on Linux, /proc/PID/cmdline
gets empty. So, when we detect it is a zombie we stop
reading this file.
For processes that were zombies before htop started,
there's no way to get the full name.
Closes #49.
2016-02-19 20:51:57 -02:00
Hisham e0c364b9cc Fix reading of io_syscr and io_syscw.
Issue noticed by GCC6 -Wmisleading-indentation.
Thanks @JIghtuse and @Explorer09!
Closes #409.
2016-02-16 14:34:25 -02:00
Hisham 35657208d7 Disable the syscall on systems that don't have it.
Got a report in #397 that htop runs in NetBSD
masquerading as Linux and using a compatibility /proc
(like we used to in FreeBSD) and that it builds fine
apart from this syscall.
2016-02-14 12:05:35 -02:00
Hisham 0b70439316 Fix buffer reuse. 2016-02-13 02:18:28 -02:00
Hisham b2c2b2bfb3 Merge branch 'reuse-comm' 2016-02-02 15:58:50 +01:00
Hisham 1cfcc42a8f Reuse comm object if possible, avoid useless repetitions of free+strdup. 2016-02-02 15:56:52 +01:00
Hisham b54d2dde40 Check for failure in allocations. 2016-02-02 15:53:02 +01:00
Explorer09 6dae8108f8 Introduce CLAMP macro. Unify all MIN(MAX(a,b),c) uses.
With the CLAMP macro replacing the combination of MIN and MAX, we will
have at least two advantages:
1. It's more obvious semantically.
2. There are no more mixes of confusing uses like MIN(MAX(a,b),c) and
   MAX(MIN(a,b),c) and MIN(a,MAX(b,c)) appearing everywhere. We unify
   the 'clamping' with a single macro.
Note that the behavior of this CLAMP macro is different from
the combination `MAX(low,MIN(x,high))`.
* This CLAMP macro expands to two comparisons instead of three from
  MAX and MIN combination. In theory, this makes the code slightly
  smaller, in case that (low) or (high) or both are computed at
  runtime, so that compilers cannot optimize them. (The third
  comparison will matter if (low)>(high); see below.)
* CLAMP has a side effect, that if (low)>(high) it will produce weird
  results. Unlike MIN & MAX which will force either (low) or (high) to
  win. No assertion of ((low)<=(high)) is done in this macro, for now.

This CLAMP macro is implemented like described in glib
<http://developer.gnome.org/glib/stable/glib-Standard-Macros.html>
and does not handle weird uses like CLAMP(a++, low++, high--) .
2016-01-15 20:26:01 +08:00
Michael Klein b10e54cdee Merge remote-tracking branch 'upstream/master' into envscreen 2016-01-06 22:39:57 +01:00
Hisham Muhammad be9edc5d43 Merge branch 'master' of https://github.com/hishamhm/htop 2016-01-03 16:32:48 -02:00
Michael McConville 7170382706 Fix spelling of "maintainer" 2016-01-02 12:11:26 -05:00
Hisham Muhammad 802e216870 Extend buffer for reading lines from /proc.
Apparently a line longer than 255 chars was spotted in the wild:
http://serverfault.com/questions/577939/linux-ps-htop-show-processes-running-for-hundreds-or-thousands-of-days-though-h#comment676098_577939
2015-12-14 13:27:11 -02:00
Michael Klein cc23d13f87 Add Platform_getProcessEnv
- currently implemented for darwin and linux
2015-12-03 22:23:40 +01:00
Hisham Muhammad a84aa2e782 Cached memory calculations, take 2.
Thanks to @OmegaPhil for discussion and reviewing.
2015-11-29 23:55:31 -02:00
Hisham Muhammad 5bc1f5ed04 Account unreclaimable slab and shmem as used memory,
reclaimable slab as cached memory.

Hopefully this presents a more truthful representation of
available vs. used memory on Linux.
See brndnmtthws/conky#82, #242, #67, #263.
2015-11-28 22:22:00 -02:00
Hisham Muhammad b669540e4e Merge pull request #298 from patrickmarlier/issue202
Fix a case where the usertime calculation can overflow (see issue #202)
2015-10-26 17:55:13 -04:00
Hisham Muhammad 71190654bc Calculate CPU averages on Darwin (See #295). 2015-10-23 13:46:21 -02:00
Martin "eto" Misuth 93f05b459f fixed broken merge, where I forgot to check linux/Platform.c so that it matches upstream 2015-10-06 20:05:55 +02:00