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46 Commits

Author SHA1 Message Date
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 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 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 bd5d37f297 Return when reading cmdline fails (e.g. zombie process) 2016-08-24 18:11:10 -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 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 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
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
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
Patrick Marlier b37d4f172f Fix a case where the usertime calculation can overflow (see issue #202) 2015-09-14 22:51:14 +02:00
Hisham Muhammad 5e4f1e46cc Reduce scope of variables. 2015-08-20 01:12:34 -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
peter-warhzner 6f6f0e36ad Fix typo in comment 2015-08-04 18:48:34 +05:00
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 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 a4b03e8875 Improve reading of cgroups. 2015-03-08 19:47:49 -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 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 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