Commit Graph

257 Commits

Author SHA1 Message Date
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
Christian Göttsche fee744abd2 Update generic process field display
- sort cases by identifier
- use check snprintf
- color nice value of 0 as gray
- color cpu and memory percentages of 0.0 as gray
- color number of threads of 1 as gray
- color idle and sleeping state as gray
- color tgid matching pid (indicating main thread) as gray
2021-01-30 14:21:26 +01:00
Christian Göttsche d5de1bc23d Overhaul sorting of state process column
Do not sort by ascii value of the state identifier, sort by relevance
2021-01-30 14:21:26 +01:00
Christian Göttsche a3c8285237 Refactor to tty_nr process field display
If no terminal name can be found, fall back to generic display method
with major and minor device numbers.

Print special value '(none)' in case both are zero.
2021-01-30 14:21:26 +01:00
Christian Göttsche 3035e29e74 Use typedef names instead of raw struct ones 2021-01-26 21:16:23 +01:00
Daniel Lange 074703bd5c Implement stable tie-breaker and add more defaultSortDesc fields as per cgzones' suggestions, simplify Process_compare flow from BenBE 2021-01-22 09:57:44 +01:00
Daniel Lange 4531b31d92 Sort out the mess around column sorting that had accumulated over time 2021-01-21 14:27:23 +01:00
Christian Göttsche 08ac22ddb9 RichString: refactor writing limited amount of columns
Closes: #468
2021-01-15 20:41:10 +01:00
Christian Göttsche 5fde0e0127 RichString_appendChr: add parameter to set attributes
Allows to set attributes when padding process fields in non-wide ncurses
mode.

Closes: #475
2021-01-13 19:22:33 +01:00
Christian Göttsche a5db139a0a Linux: use correct column alignment for wide fields
This affects:
- PROC_COMM, PROC_EXE and CWD on Linux
- JAIL on FreeBSD and DragonFlyBSD
- ZONE on Solaris
2021-01-11 12:02:25 +01:00
Christian Göttsche 3bb731c645 RichString_setAttrn: refactor to take a length instead of a stop index
Fixes: #459
2021-01-10 16:51:25 +01:00
Christian Göttsche e103ec0317 Declare for loop variables inside the loop 2021-01-06 16:43:18 +01:00
Christian Göttsche 90ea3ac3c9 Object: return int on comparison
Comparisons do, due to the new introduced shaceship-comparisons,
only return -1, 0, 1 or the result of strcmp().
2021-01-02 00:00:17 +01:00
Christian Göttsche 5359eae28b Process: use correct column aligning on wide username
Closes: #421
2020-12-23 19:56:51 +01:00
Christian Göttsche 9f68c8d341 Merge Process_pidColumns into Process_fields and rework auto-fit for PID-like columns 2020-12-19 21:13:32 +01:00
Christian Göttsche 89473cc9ae Rework enum ProcessField
Use only one enum instead of a global and a platform specific one.
Drop Platform_numberOfFields global variable.
Set known size of Process_fields array
2020-12-19 21:13:32 +01:00
Benny Baumann 77db240b48 Split boilerplate and platform-independent field comparison
This acheives two things:
- Allows for simple tie-breaking if values compare equal (needed to make sorting the tree-view stable)
- Allows for platform-dependent overriding of the sort-order for specific fields

Also fixes a small oversight on DragonFlyBSD when default-sorting.
2020-12-19 16:02:34 +01:00
Hisham Muhammad 2327260ee8 Separate tree and list sort orders
Implements the suggestion from https://github.com/htop-dev/htop/issues/399#issuecomment-747861013

Thanks to the refactors from 0bd5c8fb5da and 6393baa74e5, this was really easy
and clean to do.

It maintains the "Tree view always by PID" option in the Settings, which
results in some specific behaviors such as "clicking on the column header to
exit tree view" and "picking a new sort order to exit tree view", for the sake
of the muscle memory of long time htop users. :)
2020-12-19 16:02:34 +01:00
Hisham Muhammad e8c6994f40 Add "Tree view is always sorted by PID" option to mimic htop 2 behavior 2020-12-19 16:02:34 +01:00
Hisham Muhammad 3d1703f16f Invert Process_compare resolution so that superclass matches run first
* This removes duplicated code that adjusts the sort direction from every
  OS-specific folder.
* Most fields in a regular htop screen are OS-independent, so trying
  Process_compare first and only falling back to the OS-specific
  compareByKey function if it's an OS-specific field makes sense.
* This will allow us to override the sortKey in a global way without having
  to edit each OS-specific file.
2020-12-19 16:02:34 +01:00
Christian Göttsche 27b8d81ed2 ProcessList: save scan time in millisecond
The delay is saved in deciseconds, use a bigger resolution to avoid
timing irregularities.
2020-12-18 22:43:21 +01:00
Nathan Scott 75e9f9a8d9 Cull the definitions of pageSize and pageSizeKB from CRT.c
By storing the per-process m_resident and m_virt values in the form
htop wants to display them in (KB, not pages), we no longer need to
have definitions of pageSize and pageSizeKB in the common CRT code.

These variables were never really CRT (i.e. display) related in the
first place.  It turns out the darwin platform code doesn't need to
use these at all (the process values are extracted from the kernel
in bytes not pages) and the other platforms can each use their own
local pagesize variables, in more appropriate locations.

Some platforms were actually already doing this, so this change is
removing duplication of logic and variables there.
2020-12-10 11:57:48 +11:00
Christian Göttsche 2d231d77ca Process: simplify 2020-12-08 22:37:15 +01:00
Benny Baumann f6613db5cd Additional code simplification
Additional correction for #375
2020-12-08 21:24:19 +01:00
Benny Baumann 4c44a70f96 Fix broken tree display on inverted sort order
Fixes #375
2020-12-08 21:12:54 +01:00
Christian Göttsche 157086e750 Split RichString_(append|appendn|write) into wide and ascii
RichString_writeFrom takes a top spot during performance analysis due to the
calls to mbstowcs() and iswprint().

Most of the time we know in advance that we are only going to print regular
ASCII characters.
2020-12-08 20:58:40 +01:00
Christian Göttsche 77ec86aff4 Use size_t as type for buffer length in Process 2020-12-06 16:03:44 +01:00
Christian Göttsche cd305b4325 Print G in gigabyte color
When printing a size like 27.2G print the G like the 27 in the gigabyte color.
2020-11-29 15:06:08 +01:00
Daniel Lange 7899ae2eb1 Replace more snprintfs, reduce buffer sizes to what is printed 2020-11-28 17:57:51 +01:00
Benny Baumann 0b29e5074c Use 'N/A' instead of 'no perm' for more consistency 2020-11-28 17:43:08 +01:00
Benny Baumann 45cb99d870 Minor indentation fix 2020-11-24 19:05:48 +01:00
Narendran Gopalakrishnan 09fe94da18 Improving Command display/sort 2020-11-24 19:05:48 +01:00
Christian Göttsche fa002c0ba9 Rename virtual memory column from M_SIZE to M_VIRT
Closes: #325
2020-11-21 19:39:45 +01:00
Christian Göttsche 7cf5277594 IWYU update (Linux) 2020-11-19 23:51:50 +01:00
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
Daniel Lange 0951090fa4 Merge branch 'hili-new-old' of adsr/htop into highlight-new-old-processes 2020-11-16 12:55:07 +01:00
Christian Göttsche 42073babb9 Use uid_t type for Process_getuid 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 61e14d4bb2 Spacing around operators 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
Adam Saponara a83f515f0f Address items from review 2020-10-31 20:36:53 -04:00
Adam Saponara dde71c6637 Highlight new and old processes (#74) 2020-10-30 21:56:16 -04:00
Christian Göttsche 4eb443926f Hold only a const version of Settings in Process 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
Christian Göttsche a63cfc8b7c Refactor generating starttime string into Process class 2020-10-16 19:23:40 +02:00
Christian Göttsche 79ad39c718 Mark Object pointer to _display function const 2020-10-10 11:25:19 +02:00
Christian Göttsche ba282cfe19 Mark Object instances const 2020-10-07 13:01:53 +02:00
Daniel Lange 079c2abf8e Update License consistently to GPLv2 as per COPYING file 2020-10-05 10:13:12 +02:00
Michael Witten ab3171d21d Process.{h,c}: Use integer types that are more portable
When building on a 32-bit system, the compiler warned that the
following line uses a constant whose value is the overflow result
of a compile-time computation:

  Process.c (line 109):   } else if (number < 10000 * ONE_M) {

Namely, this constant expression:

  10000 * ONE_M

was intended to produce the following value:

  10485760000

However, the result overflowed to produce:

   1895825408

The reason for this overflow is as follows:

  o The macros are expanded:

      10000 * (ONE_K * ONE_K)
      10000 * (1024L * 1024L)

  o The untyped constant expression "10000" is typed:

      10000U * (1024L * 1024L)

  o The parenthesized expression is evaluated:

      10000U * (1048576L)

  o The left operand ("10000U") is converted:

      10000L * (1048576L)

    Unbound by integer sizes, that last multiplication
    would produce the following value:

      10485760000

    However, on a 32-bit machine, where a long is 32 bits
    (really 31 bits when talking about positive numbers),
    the maximum value that can be computed is 2**31-1:

      2147483647

    Consequently, the computation overflows.

  o The compiler produces a long int value that is the
    the result of overflow (10485760000 % 2**31):

      1895825408L

    Actually, I think this overflow is implementation-defined,
    so it's not even a portable description of what happens.

The solution is to use a long long int (or, even better,
an unsigned long long int) type for the constant expression;
the C standard mandates a sufficiently large maximum value
for such types.

Hence, the following change is made to the bad line:

  -   } else if (number < 10000 * ONE_M) {
  +   } else if (number < 10000ULL * ONE_M) {

However, the whole line is now patently silly, because the
variable "number" is typed "unsigned long", and so it will
always be less than the constant expression (the compiler
will warn about this, too).

Hence, "number" must be typed "unsigned long long"; however,
this necessitates changing all of the string formats from
something like "%lu" to something like "%llu".

Et voila! This commit is born.

Then, for the sake of completeness, the declared types of the
constant-expression macros are updated:

  o ONE_K is made unsigned (a "UL" instead of "L")
  o ONE_T is computed by introducing "1ULL *"
  o Similar changes are made for ONE_DECIMAL_{K,T}

Also, a non-portable overflow-conversion to a signed value
has been replaced with a portable comparison:

  -   if ((long long) number == -1LL) {
  +   if (number == ULLONG_MAX) {

It might be worth reviewing the rest of the code for other
cases where overflows are not handled correctly; even at
runtime, it's often necessary to check for overflow unless
such behavior is expected (especially for signed integer
values, for which overflow has implementation-defined
behavior).
2020-09-29 15:47:52 +00:00
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 29ec115143 Update IO rate display to use NAN on error 2020-09-24 18:06:36 +02:00
Benny Baumann e0e5997c53 Fix minor regression in number highlighting
Fixes #163
2020-09-21 14:10:07 +02:00
Benny Baumann 40441dca8e Enhance highlighting of semi-large and large numbers 2020-09-17 22:08:13 +02:00
Hugo Musso Gualandi 9207401f97 Clean up some code duplication in the header files
PR htop-dev/htop#70 got rid of the infrastructure for generating header
files, but it left behind some code duplication.

Some of cases are things that belong in the header file and don't need
to be repeated in the C file. Other cases are things that belong in the
C file and don't need to be in the header file.

In this commit I tried to fix all of these that I could find. When given
a choice I preferred keeping things out of the header file, unless they
were being used by someone else.
2020-09-12 19:20:44 -03:00
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 11f558f934 Avoid discarding const qualifiers 2020-08-25 12:00:03 +02:00
Nathan Scott a82fd262d7 Merge branch 'hishamhm-pull-960' 2020-08-20 14:19:53 +10:00
Nathan Scott dab4144f4a Merge branch 'hishamhm-pull-872' 2020-08-20 12:30:51 +10:00
Nathan Scott 45ae6191c1 Merge branch 'hishamhm-pull-866' 2020-08-20 12:29:25 +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 00d333cc7b Merge branch 'hishamhm-pull-869' 2020-08-19 18:04:28 +10:00
Nathan Scott 579995c7c2 Merge branch 'hishamhm-pull-842' 2020-08-18 17:35:56 +10:00
Daniel Flanagan dd33444f7e Clean up existing whitespace 2019-10-31 11:39:12 -05:00
Explorer09 3512971084 Fix configure 'major' workaround causing <sys/sysmacros.h> to miss.
A logic mistake in pull request #746 causes <sys/sysmacro.h> to be
*not* included when AC_HEADER_MAJOR (before autoconf-2.70) finds
'major' in <sys/types.h>. Though this would still build htop, it would
still bring deprecation warning in systems using glibc 2.25-2.27. Fix
the logic and suppress the warning.

Also, include config.h in Process.c for the sake of strengthening the
code.

Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
2019-06-14 10:10:23 +08:00
Hisham Muhammad 90518bfc84 Return of snprintf is not the number of written bytes 2019-02-10 14:16:46 +01:00
Alan Barr f49f545813 Fix printf() unsigned placeholders
Unsigned numbers should be using "%u".

Raised by cppcheck
2019-02-10 14:16:46 +01:00
adrien1018 536941fb23 Deal with larger numbers in colorNumber and outputRate 2018-12-30 20:18:35 +08:00
adrien1018 f15d55c972 Fix numbers larger than 100 terabytes 2018-12-18 21:05:09 +08:00
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
Alan Barr b7b4200f85 Fix printf() unsigned placeholders
Unsigned numbers should be using "%u".

Raised by cppcheck
2018-10-30 16:55:55 -03:00
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 0dbedf95a8 Collapse current subtree pressing Backspace 2018-04-05 19:38:13 -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
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
Hisham Muhammad e3f65c8ec2 Make 'c' key work with threads as well. 2017-09-14 17:10:39 -03:00
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 543d65c6ab Security review: make privilege dropping-restoring optional.
This is/was necessary only on macOS, because you needed root in order
to read the process list. This was never necessary on Linux, and
it also raises security concerns, so now it needs to be enabled
explicitly at build time.
2017-07-26 15:40:55 -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
Tomasz Kramkowski 2b5c1b4b13 Replace all uses of sprintf with snprintf
In all the cases where sprintf was being used within htop, snprintf
could have been used. This patch replaces all uses of sprintf with
snprintf which makes sure that if a buffer is too small to hold the
resulting string, the string is simply cut short instead of causing
a buffer overflow which leads to undefined behaviour.

`sizeof(variable)` was used in these cases, as opposed to `sizeof
variable` which is my personal preference because `sizeof(variable)`
was already used in one way or another in other parts of the code.
2016-12-29 19:42:41 +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
Ivan Kozik 07086fcf77 Fix column misalignment for priority -101 threads
BFS-patched kernels can have kernel threads with priority -101.
This change makes priority -101 display as "RT", just like priority -100.

Related: https://github.com/hishamhm/htop/issues/314
2016-09-06 09:22:38 +00:00
Hisham 7d5ef246f1 Let's keep it simple then! 2016-06-20 12:11:49 -03:00