Laslo Hunhold [Tue, 1 May 2018 17:01:22 +0000 (19:01 +0200)]
Use indentation to increase readability
Granted, this style is definitely not common, but for the short
utility-functions of this program it's just the right choice. This
provides great flexibility, such that in the long run, it will be
possible to also share code between the OS-implementations.
This also keeps the state-keeping at a minimum and makes it clearer
which functions are implemented on which OS without having to jiggle
around with too many files in the process.
After heavy consideration, the component split has more disadvantages
than advantages, especially given there will be utility-functions
sharing quite a lot of code that would then need to be duplicated, as it
does not fit into the util.c due to its speciality.
One big advantage of the component-wise build is readability, and
without doubt, this was achieved here. This point will be addressed
with a different approach that will be visible in the upcoming commits.
One big disadvantage of the component build is the fact that it
introduces state to the build process which is not necessary. Before its
introduction, the only influencing factors where the system-defines
__linux__ and __OpenBSD__. With the components, we are also relying on
the output of uname(1).
Additionally, if the os.mk is not present, make gives the output
$ make
Makefile:5: os.mk: No such file or directory
make: *** No rule to make target 'os.mk'. Stop.
This could easily be fixed by providing some sort of meta-rule for this
file, however, it indicates the problem we have here, and this entire
statefulness will heavily complicate packaging of this tool and makes
the build process much more complex than it actually has to be.
parazyd [Tue, 24 Oct 2017 09:03:17 +0000 (11:03 +0200)]
Return actual percentage for wifi_perc()
Implement basic percentage calculation for wifi_perc. With this
commit, the function returns correct percentage, since the max
of what /proc/net/wireless returns is 70.
The HDR variable is used for general purpose headers, which are not
given in this project. arg.h and config.h are only needed for
slstatus.c, not every component $(COM:=.c).
For multiple reasons the program is now split:
- Make future porting to OpenBSD easier
- Assign header includes to individiual functions
- Make future program extensions easier
- Recompile only changed parts
Kurt Van Dijck [Thu, 14 Sep 2017 21:58:38 +0000 (23:58 +0200)]
slstatus: add cpu_iowait
This commit introduces the cpu_iowait item, this is the percentage
of cpu time spent waiting on disks. High numbers typically indicate
that your system is not responsive due to disk IO.
This commit also avoid sleeping inside the cpu_perc and cpu_iowait
functions: waiting in either one implies lost info for the other.
Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Laslo Hunhold [Sun, 13 Aug 2017 21:21:23 +0000 (23:21 +0200)]
Refactor main()
We remove the hack with the sleep and global "delay"-variable and use a
monotonic clock to derive the desired monotonic properties of the tool.
Inside each function that demands a personal delay we can then just do a
nanosleep() and be done with it.
It's a shame that timespec is so ugly to work with, but there's really
no way to make it more beautiful. However, at this cost though we
finally can set the interval times in milliseconds and not only just
seconds.
We remove setlocale(), because nothing good ever came out of this
function.
Besides that we have some more code refactoring, especially in the
argument loop which saves us a bit of complexity.
Aaron Marcher [Fri, 11 Aug 2017 12:33:02 +0000 (14:33 +0200)]
Fixed possible NULL-deref and removed unnecessary XOpenDisplay()
- Added a check for the return value of XOpenDisplay() in main().
This fixes a possible NULL-deref.
- Removed unnsecessary XOpenDisplay and XCloseDisplay from
keyboard_indicators(). The ones in main() are sufficent.
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