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523 Commits

Author SHA1 Message Date
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
Martin "eto" Misuth 2379835910 Added platform dependent DEFAULT_SIGNAL define, for now for: 
FreeBSD
Linux
Other platforms will have it undefined for now.
 2015-10-06 14:04:22 +02:00
Hisham Muhammad 3fe2f3e28e Move list of signals to platform-specific code. 
Implementations for Linux (tested) and FreeBSD (still untested, thanks to @etosan for providing the table).
Darwin and OpenBSD(ping @mmcco) builds should be broken now, pending their own tables.
 2015-10-06 03:02:49 -03:00
Patrick Marlier b37d4f172f Fix a case where the usertime calculation can overflow (see issue #202) 2015-09-14 22:51:14 +02:00
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 5e4f1e46cc Reduce scope of variables. 2015-08-20 01:12:34 -03:00
Hisham Muhammad 9428010121 Make column width calculation dynamic. 
Closes #228.
 2015-08-20 00:32:47 -03:00
David Hunt 5e602f18d5 Rename String to StringUtils. 
Fixes building on case-insensitive filesystems where String.h gets confused with <string.h>.

From d734dacea0a10d0465dad4e95b3421511e7da112 Mon Sep 17 00:00:00 2001
From: David Hunt <dhunt@iolanthe.attlocal.net>
Date: Sat, 11 Jul 2015 20:56:31 -0500
Subject: [PATCH 1/8] Rename String to StringUtils
 2015-08-19 13:45:20 -03:00
Hisham Muhammad e42d78007e Merge pull request #230 from maksqwe/cstime_fix 
Fix sort by cstime
 2015-08-12 17:08:26 -03:00
peter-warhzner 6f6f0e36ad Fix typo in comment 2015-08-04 18:48:34 +05:00
Maks Naumov 1bdee6b6ba Fix sort by cstime 2015-07-23 14:24:39 +03:00
Christian Hesse 08829cbc3b fix compiler warnings 
gcc gives warnings like this:

warning: ignoring return value of ‘fscanf’, declared with attribute
warn_unused_result

Assign value to a variable, cast to (void) to discard it.
 2015-05-15 11:33:25 +02:00
Hisham Muhammad f4f6d54ffd Fix compilation of OpenVZ support. 
Closes #185.
Closes #190.
 2015-05-13 15:00:58 -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 b291fba02b Fixes to use platform-specific compare routines. 2015-04-09 15:40:46 -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 7cb8cb05fb Simplify constructors. 2015-03-23 19:24:34 -03:00
Hisham Muhammad d0c72c3fb2 Move FunctionBar inside Panel 2015-03-23 15:26:56 -03:00
Hisham Muhammad 4e064e0db7 Build fixes to resync with FreeBSD changes. 2015-03-16 23:03:40 -03:00
Hisham Muhammad 272e2d9b34 Major advances in FreeBSD port. 2015-03-16 23:02:03 -03:00
Hisham Muhammad 7fd4af80ff Linux build fixes. 2015-03-16 03:25:43 -03:00
Hisham Muhammad 5c8b83405b Merge branch 'master' into wip 
Conflicts:
	Process.c
	Process.h
	linux/LinuxProcess.c
	linux/LinuxProcess.h
	linux/LinuxProcessList.c
	unsupported/Platform.c
	unsupported/Platform.h
 2015-03-16 03:22:33 -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 a4b03e8875 Improve reading of cgroups. 2015-03-08 19:47:49 -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 50000d808e Silence warnings reported in #70. 2015-02-23 03:34:06 -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 83a829a286 Remove bogus assertion. Closes #159. 2015-01-23 11:22:55 -02:00
Hisham Muhammad c2108e5a48 Another mega-patch for the refactoring process. 
Kinda runs, but functionality from the original main loop
is still missing. Patience.
 2015-01-23 03:08:21 -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 36b7832884 Fix initialization of cpuData structure. Closes #159. 2015-01-19 16:24:56 -02:00
Hisham Muhammad 430c7c9a9b Move platform-dependent parts of Linux battery meter. 2014-11-27 21:04:57 -02:00
Hisham Muhammad b4f6b11092 Move "get max pid" code into platform specific area. 2014-11-27 20:10:23 -02:00
Hisham Muhammad 5578a316f0 Merge branch 'master' of https://github.com/hishamhm/htop 2014-11-27 19:58:07 -02:00
Hisham Muhammad 529095607c Isolate cross-platform code for load average. 2014-11-27 19:57:24 -02:00
Hisham Muhammad e748401588 Build fix. 2014-11-27 19:46:01 -02:00
Hisham Muhammad ca03094bb2 Make UptimeMeter cross-platform again. 2014-11-27 19:41:14 -02:00
Hisham Muhammad 2dcdd87658 Move UptimeMeter back into cross-platform code. 
We'll just isolate the platform-dependent bit.
 2014-11-27 19:34:47 -02:00
Hisham Muhammad 357e7a3243 Move UptimeMeter into platform-dependent area. 
Set up environment to move other meters.
 2014-11-27 19:18:14 -02:00
Hisham Muhammad cda6bdd56b Add ProcessList_delete to the variable interface. 2014-11-27 17:48:38 -02:00
Hisham Muhammad ff4d1b466f Build fixes. 2014-11-27 16:31:42 -02:00
Hisham Muhammad 6afacee50d A little refactoring 2014-11-27 16:28:32 -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