Commit Graph

120 Commits

Author SHA1 Message Date
Christian Göttsche 15eab2012d Add process column for normalized CPU usage
Shows the process CPU usage divided by the number of CPU cores
2020-11-16 18:14:06 +01:00
Christian Göttsche 9f67b95308 Mark local functions static 2020-11-15 18:35:30 +01:00
Christian Göttsche 397b5c4bd0 Introduce spaceship comparison for Processes
If currently two unsigned values are compared via `a - b`, in the case b
is actually bigger than a, the result will not be an negative number (as
-1 is expected) but a huge positive number as the subtraction is an
unsigned subtraction.

Avoid over-/underflow affected operations; use comparisons.
Modern compilers will generate sane code, like:
    xor     eax, eax
    cmp     rdi, rsi
    seta    al
    sbb     eax, 0
    ret
2020-11-15 18:25:21 +01:00
Benny Baumann 45869513bf Embracing branches 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 d33b2be2ca Implement LinuxProcess_effectiveIOPriority as function
Make it more readable and fix unenclosed macro arguments
2020-10-28 19:57:10 +01:00
Christian Göttsche ac2b07eddd Avoid some unnecessary casts and mark some not changing variables const 2020-10-27 18:00:43 +01:00
Christian Göttsche 4eb443926f Hold only a const version of Settings in Process 2020-10-26 19:30:38 +01:00
Christian Göttsche 7109172431 Mark process parameter of Process_writeField consistently const 2020-10-26 19:30:38 +01:00
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
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
Benny Baumann 872e542f4e Rename StringUtils.[ch] to XUtils.[ch] 2020-10-16 20:30:21 +02:00
Benny Baumann c6f04a9c5d Move xAsprintf, xSnprintf and xStrdup to StringUtils.h 2020-10-16 20:29:45 +02:00
Christian Göttsche 783be7711d Do not use extra starttime process field on Linux 2020-10-16 19:23:40 +02:00
Christian Göttsche 7af06659e2 Mark remaining classes const 2020-10-13 14:56:01 +02:00
Christian Göttsche 41eea8a355 Mark process argument of Process_isThread const 2020-10-09 10:18:40 +02:00
Benny Baumann 2970cae543 Handle parsing envID & VPid from process status file
Fixes #55
Fixes #192
2020-10-07 13:14:39 +02:00
Christian Göttsche 954d6c12f5 Simplify statm parsing and document unused fields 2020-10-06 18:59:02 +02:00
Daniel Lange 079c2abf8e Update License consistently to GPLv2 as per COPYING file 2020-10-05 10:13:12 +02:00
Christian Göttsche 6f387008cb Add security attribute process column 2020-10-03 18:51:17 +02:00
Christian Göttsche 843949131a Drop redundant casts to the same type 2020-09-29 10:44:42 +02:00
Christian Göttsche 18b1e9fba9 Do not drop qualifier in cast
ListItem.c:73:33: warning: cast from 'const void *' to 'struct ListItem_ *' drops const qualifier [-Wcast-qual]
   ListItem* obj1 = (ListItem*) cast1;
                                ^
ListItem.c:74:33: warning: cast from 'const void *' to 'struct ListItem_ *' drops const qualifier [-Wcast-qual]
   ListItem* obj2 = (ListItem*) cast2;
                                ^

Process.c:434:28: warning: cast from 'const void *' to 'struct Process_ *' drops const qualifier [-Wcast-qual]
   Process* p1 = (Process*)v1;
                           ^
Process.c:435:28: warning: cast from 'const void *' to 'struct Process_ *' drops const qualifier [-Wcast-qual]
   Process* p2 = (Process*)v2;
                           ^
Process.c:441:36: warning: cast from 'const void *' to 'struct Process_ *' drops const qualifier [-Wcast-qual]
   Settings *settings = ((Process*)v1)->settings;
                                   ^
Process.c:443:22: warning: cast from 'const void *' to 'struct Process_ *' drops const qualifier [-Wcast-qual]
      p1 = (Process*)v1;
                     ^
Process.c:444:22: warning: cast from 'const void *' to 'struct Process_ *' drops const qualifier [-Wcast-qual]
      p2 = (Process*)v2;
                     ^
Process.c:446:22: warning: cast from 'const void *' to 'struct Process_ *' drops const qualifier [-Wcast-qual]
      p2 = (Process*)v1;
                     ^
Process.c:447:22: warning: cast from 'const void *' to 'struct Process_ *' drops const qualifier [-Wcast-qual]
      p1 = (Process*)v2;
                     ^

AffinityPanel.c:37:16: warning: cast from 'const char *' to 'void *' drops const qualifier [-Wcast-qual]
   free((void*)this->text);
               ^
AffinityPanel.c:39:19: warning: cast from 'const char *' to 'void *' drops const qualifier [-Wcast-qual]
      free((void*)this->indent);
                  ^

linux/LinuxProcess.c:294:36: warning: cast from 'const void *' to 'struct Process_ *' drops const qualifier [-Wcast-qual]
   Settings *settings = ((Process*)v1)->settings;
                                   ^
linux/LinuxProcess.c:296:27: warning: cast from 'const void *' to 'struct LinuxProcess_ *' drops const qualifier [-Wcast-qual]
      p1 = (LinuxProcess*)v1;
                          ^
linux/LinuxProcess.c:297:27: warning: cast from 'const void *' to 'struct LinuxProcess_ *' drops const qualifier [-Wcast-qual]
      p2 = (LinuxProcess*)v2;
                          ^
linux/LinuxProcess.c:299:27: warning: cast from 'const void *' to 'struct LinuxProcess_ *' drops const qualifier [-Wcast-qual]
      p2 = (LinuxProcess*)v1;
                          ^
linux/LinuxProcess.c:300:27: warning: cast from 'const void *' to 'struct LinuxProcess_ *' drops const qualifier [-Wcast-qual]
      p1 = (LinuxProcess*)v2;
                          ^

linux/LinuxProcessList.c:62:32: warning: cast from 'const void *' to 'struct TtyDriver_ *' drops const qualifier [-Wcast-qual]
   TtyDriver* a = (TtyDriver*) va;
                               ^
linux/LinuxProcessList.c:63:32: warning: cast from 'const void *' to 'struct TtyDriver_ *' drops const qualifier [-Wcast-qual]
   TtyDriver* b = (TtyDriver*) vb;
                               ^

linux/Battery.c:130:21: warning: cast from 'const char *' to 'char *' drops const qualifier [-Wcast-qual]
      free((char *) isOnline);
                    ^
linux/Battery.c:197:26: warning: cast from 'const char *' to 'char *' drops const qualifier [-Wcast-qual]
      xSnprintf((char *) filePath, sizeof filePath, SYS_POWERSUPPLY_DIR "/%s/type", entryName);
                         ^
linux/Battery.c:209:29: warning: cast from 'const char *' to 'char *' drops const qualifier [-Wcast-qual]
         xSnprintf((char *) filePath, sizeof filePath, SYS_POWERSUPPLY_DIR "/%s/uevent", entryName);
                            ^
linux/Battery.c:262:29: warning: cast from 'const char *' to 'char *' drops const qualifier [-Wcast-qual]
         xSnprintf((char *) filePath, sizeof filePath, SYS_POWERSUPPLY_DIR "/%s/online", entryName);
                            ^
2020-09-24 20:14:17 +02:00
Benny Baumann 321960bd96 Update delay accounting to use NAN on error 2020-09-24 18:06:36 +02:00
Benny Baumann 29ec115143 Update IO rate display to use NAN on error 2020-09-24 18:06:36 +02:00
Christian Göttsche eb260af6bf Fix memory leak on cgroup read failure 2020-09-21 13:55:29 +02:00
Christian Göttsche 98ee833932 Add Linux process column for context switches
Displays the incremental sum of voluntary_ctxt_switches and nonvoluntary_ctxt_switches.
2020-09-17 21:53:15 +02:00
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 e7f6d1ce5f Reduce oom cast from long to int
Oom values should never be greater then INT_MAX, they should be in the
range 0 - 1000.

Improves: d9a5dd4b91
2020-08-31 11:55:53 +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 b92f62f912 Remove trailing whitespaces 2020-08-21 10:37:33 +02:00
Nathan Scott a82fd262d7 Merge branch 'hishamhm-pull-960' 2020-08-20 14:19:53 +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 f9625cacf0 Merge branch 'hishamhm-pull-843' 2020-08-19 17:47:38 +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
Daniel Flanagan dd33444f7e Clean up existing whitespace 2019-10-31 11:39:12 -05:00
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
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
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
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
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 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 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
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
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 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 b54d2dde40 Check for failure in allocations. 2016-02-02 15:53:02 +01:00
Christian Hesse e8970b6f32 fix calloc() calls
* size_t nmemb (number of elements) first, then size_t size
* do not assume char is size 1 but use sizeof()
* allocate for char, not pointer to char (found by Michael McConville,
  fixes #261)
2015-09-07 07:52:39 +02:00
Hisham Muhammad 9428010121 Make column width calculation dynamic.
Closes #228.
2015-08-20 00:32:47 -03:00
Maks Naumov 1bdee6b6ba Fix sort by cstime 2015-07-23 14:24:39 +03:00
Hisham Muhammad 2f45008477 Enable OOM support unconditionally on Linux.
Read OOM data only if column is enabled.
Make sort ordering more consistent. Closes #182.
2015-04-09 15:41:21 -03:00
Hisham Muhammad d880def0e9 Merge branch 'master' into wip
Conflicts:
	Process.c
	Process.h
	htop.c
	linux/LinuxProcess.c
	linux/LinuxProcess.h
	test_spec.lua
2015-04-02 01:57:37 -03:00
Hisham Muhammad 4c24a9b462 Fixes to subclassing Process. 2015-03-31 23:23:10 -03:00
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 be1700cf94 Isolate portable and Linux-specific process fields. 2015-03-16 01:43:04 -03:00
Hisham Muhammad e3fe3962cb Move more Linux-specific code into Linux subdir. 2015-03-15 20:29:13 -03:00
Hisham Muhammad e7d6eb6a82 Fix deletion of processes. Closes #172.
Conflicts:
	linux/LinuxProcess.c
2015-03-08 19:52:28 -03:00
Hisham Muhammad 39a725abc2 Fix deletion of processes. Closes #172. 2015-03-08 19:45:56 -03:00
Hisham Muhammad 0a184b769f Merge fixes 2015-02-23 03:53:36 -03:00
Hisham Muhammad 9780c312f4 Fix allocation of processes. Closes #166.
Conflicts:
	Process.c
	Process.h
	ProcessList.c
	ScreenManager.c
	linux/LinuxProcessList.c
2015-02-23 01:13:40 -03:00
Hisham Muhammad 6f868b00c0 Fix allocation of processes. Closes #166. 2015-02-20 14:52:10 -02:00
Hisham Muhammad 3383d8e556 Sorry about the mega-patch.
This is a work-in-progress, code is currently broken.
(Some actions, and notably, the header, are missing.)
2015-01-21 23:27:31 -02:00
Hisham Muhammad aaaaf063a1 Builds on Linux again! 2014-11-24 19:22:50 -02:00
Hisham Muhammad 26422af608 Files moved and added for supporting separate platforms. 2014-11-24 18:55:49 -02:00