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Author SHA1 Message Date
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
Michael McConville e595f6865e Rename variable for consistency 
Suggested by Hisham.
 2016-01-04 16:20:51 -05:00
Michael McConville 198592a0f1 Plug mem leak, improve CPU enumeration logic 
I think this leak may still exist in the FreeBSD port.
 2016-01-03 16:56:33 -05:00
Hisham Muhammad 86954f9204 Merge pull request #331 from mmcco/fixes 
OpenBSD fixes and updates
 2016-01-03 16:17:31 -02:00
Michael McConville 918cfd54d6 Fall back to sysctl's command name, and a bugfix 
This is what OpenBSD's top(1) does when the libkvm call fails, and it's
a good idea.

This commit also fixes process name construction. The space was being
written one character too far.
 2016-01-02 22:05:20 -05:00
Michael McConville 3da36bbc61 Use dynamically allocated memory for process names 
Even when they're constant, as is the case for zombie processes.
 2016-01-02 17:11:23 -05:00
Michael McConville c1b3289219 Check for allocation failure 
Pointed out by Michael Reed.
 2016-01-02 12:20:40 -05:00
Michael McConville ae5c01f485 Use err() rather then errx() for sysctl() 
So that we can see errno. Pointed out by Michael Reed.
 2016-01-02 12:17:35 -05:00
Michael McConville 7170382706 Fix spelling of "maintainer" 2016-01-02 12:11:26 -05:00
Michael McConville 22cfda6332 OpenBSD fixes and updates 
I forgot how awful the process name logic was. It was an initial hack to
get it running, and I forgot to clean it up.

I also had to change a few includes and error function uses.
 2016-01-02 11:57:53 -05:00
Michael Klein cc23d13f87 Add Platform_getProcessEnv 
- currently implemented for darwin and linux
 2015-12-03 22:23:40 +01:00
Hisham Muhammad fd5dd6605a Merge pull request #299 from mmcco/master 
OpenBSD port updates and error exit improvements
 2015-11-02 08:46:40 -05:00
Michael McConville cd3d2337f8 Replace all err.h function uses with CRT_fatalError(). Failing with 
err.h functions corrupts the terminal when using curses.
 2015-11-01 13:26:57 -05:00
Michael McConville 0fb9a8c389 Remove a debugging print 2015-11-01 13:19:01 -05:00
Hisham Muhammad 78f2933e2b Regenerate platform-dependent headers. 
Closes #293.
 2015-10-19 17:22:54 -02:00
Michael McConville 8673a84e5f Remove some trailing whitespace 2015-10-13 11:05:52 -04:00
Michael McConville 9f1884c28f Fix generation of openbsd/Platform.h and replace a vestigial dummy CPU utilization value 2015-10-09 14:57:01 -04:00
Hisham Muhammad 56193323ce let's let the user find SIGIOT if the look for it :) 2015-10-06 12:58:53 -03:00
Michael McConville c4eb99f264 Add header file reference for OpenBSD signals 2015-10-06 11:32:40 -04:00
Michael McConville 77f12bbecd Add OpenBSD signals 2015-10-06 11:25:16 -04:00
Michael McConville 6a21d2f3a6 Fix enumeratoin of on-CPU processes in OpenBSD 2015-09-19 12:45:22 -04:00
Michael McConville ad1a0ad08d Replace some remaining tabs 2015-09-19 12:21:22 -04:00
Michael McConville e2bbd5cfa4 Change some tabs to three spaces 2015-09-19 12:08:34 -04:00
Michael McConville a9a5a539cf (Very) initial working OpenBSD port 2015-09-18 00:46:48 -04:00