Commit Graph

38 Commits

Author SHA1 Message Date
Christian Göttsche 436808ff99 Use RichString_appendnAscii where possible
`RichString_appendnAscii()` avoids a `strlen(3)` call over
` RichString_appendAscii()`.
Use the former where the length is available from a previous checked
`snprintf(3)` call.

Keep `RichString_appendAscii()` when passing a string literal and
rely on compilers to optimize the `strlen(3)` call away.
2021-04-26 17:51:45 +02:00
Christian Göttsche 2d1042adb3 Save text buffer in Meter 2021-03-04 23:57:45 +01:00
Christian Göttsche 2c06566405 LoadMeter: dynamically adjust color and total of bar
Change the color and total based on the actual 1min load value:

    < 1         : green and total of 1.0
    < cpu-count : yellow and total of cpu-count
    else        : red and total of 2*cpu-count

Closes: #32
2020-12-26 13:32:29 +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 e1ce141bc3 Use size_t as len type for Meter_UpdateValues
Most of the time the parameter is passed to snprintf type functions
2020-12-06 16:03:44 +01:00
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 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
Christian Göttsche 3653ee35c5 Drop redundant cast to same type 2020-10-06 11:46:41 +02:00
Daniel Lange 079c2abf8e Update License consistently to GPLv2 as per COPYING file 2020-10-05 10:13:12 +02:00
Christian Göttsche 6db2d52261 Covert Meter attributes to file-local constant arrays 2020-09-29 10:44:42 +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
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
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
Explorer09 9dea20e068 Rename Meter.setValues() functions to updateValues()
Rationale (copied from htop issue #471):
The function name "setValues" is misleading. For most OOP (object-
oriented programming) contexts, setXXX functions mean they will change
some member variables of an object into something specified in
function arguments. But in the *Meter_setValues() case, the new values
are not from the arguments, but from a hard-coded source. The caller
is not supposed to change the values[] to anything it likes, but
rather to "update" the values from the source. Hence, updateValues is
a better name for this family of functions.
2016-05-04 13:39:26 +08:00
Explorer09 99fb3070a2 Explicit "maxItems" property of meters
Two changes in this commit:
- All meters now explicitly specify "maxItems" property, even for just
  1 item. (Exception is "container" CPU meter classes, which use
  CUSTOM_METERMODE.)
- "maxItems" being 0 is now allowed. This will let bar meters and graph
  meters render an empty meter.
2016-03-11 10:54:34 +08:00
Hisham Muhammad d34645f8f1 Array entries have been oddly flipped here for years. 2015-11-23 03:46:43 -02:00
kaefer 33cdaf3ac0 match load averages desc. to what it actually shows 2015-11-04 11:53:17 +01:00
Hisham Muhammad 14bd77c5f4 Add longer descriptions to available meters. 2015-02-03 22:31:44 +01:00
Hisham Muhammad 529095607c Isolate cross-platform code for load average. 2014-11-27 19:57:24 -02:00
Hisham Muhammad c1e0f6e17c BUGFIX: Fix crash when adding meters and toggling detailed CPU time.
See https://bugzilla.redhat.com/show_bug.cgi?id=987805 for details.
(thanks to Dawid Gajownik for the detailed analysis!)
2014-01-16 01:40:47 -02:00
Hisham Muhammad 43a7231615 Remove explicit calls to curses.h in other files 2013-02-26 16:50:21 +00:00
Hisham Muhammad 00b324bfc1 Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
Hisham Muhammad 45f7a4fc8d Remove old memory debugging routines. We have Valgrind nowadays. 2011-12-26 22:04:29 +00:00
Hisham Muhammad 84281bdc44 major header cleanup 2011-12-26 21:35:57 +00:00
Hisham Muhammad d1b1cbc757 cleanups and fixes, thanks to cppcheck and gcc -Wextra 2011-10-25 00:05:46 +00:00
Hisham Muhammad 978019d34f sanity checks 2011-09-08 02:54:02 +00:00
Hisham Muhammad 300caa076e Tempus fugit. 2011-05-26 16:35:07 +00:00
Hisham Muhammad d8e1480a27 Remove arbitrary limit from rich strings
Fix subtree hiding
Fix reading of CPU values in hidden threads
Fix hiding of zombie processes as kernel threads
Remove "debug proc" code
Code cleanup in processElements
2010-11-22 12:40:20 +00:00
Hisham Muhammad a600d5a6e9 Tempus fugit. 2010-02-25 02:08:18 +00:00
Hisham Muhammad 02a30bfecd warning fixes 2010-02-25 01:43:18 +00:00
Hisham Muhammad da23c8c5a1 Clean up headers by using 'static' whenever possible.
Reduces resulting code size.
2008-03-09 08:58:38 +00:00
Hisham Muhammad dbe2670b69 Perform RichString operations by hand.
Avoid unnecessary operations when processing entries on ProcessList.
2006-07-12 01:16:03 +00:00
Hisham Muhammad 2f1f82ee87 Updates for new version of the MakeHeader.py script. 2006-06-06 20:41:01 +00:00
Hisham Muhammad 33113fe0d7 - Overhaul meters implementation;
- add AllCPUsMeter;
- because of that, the new .htoprc is incompatible with previous released versions.
2006-04-10 20:40:38 +00:00
Hisham Muhammad d6231bab89 Initial import. 2006-03-04 18:16:49 +00:00