0b8aa86ecb
Currently, the module cpu_usage prints %cpu0 information for the invalid
%cpu placeholder (i.e. the cpu number is missing).
Consider the following configuration.
order += "cpu_usage"
cpu_usage {
format = "cpu0=%cpu0 cpu1=%cpu1 cpu=%cpu"
# missing cpu number -------------------^
}
The configuration above produces the output below.
$ i3status -c config
i3status: trying to auto-detect output_format setting
i3status: auto-detected "term"
cpu0=-2% cpu1=-49% cpu=-2%
cpu0=06% cpu1=02% cpu=06%
cpu0=05% cpu1=06% cpu=05%
...
The module prints %cpu0 at the third placeholder where it should report
an error.
This commit fixes this behavior by initializing `number' to -1. If the
cpu is missing in %cpu placeholder, the sscanf function does not set
`number'. Because `number' is -1 (lower to 0), an error is reported and
the placeholder is skipped.
$ i3status -c ./config
i3status: trying to auto-detect output_format setting
i3status: auto-detected "term"
provided CPU number '-1' above detected number of CPU 4
cpu0= cpu1=-48% cpu=
provided CPU number '-1' above detected number of CPU 4
cpu0= cpu1=11% cpu=
provided CPU number '-1' above detected number of CPU 4
cpu0= cpu1=03% cpu=
...
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|---|---|---|
| contrib | ||
| include | ||
| man | ||
| src | ||
| testcases | ||
| travis | ||
| yajl-fallback/yajl | ||
| .clang-format | ||
| .gitignore | ||
| .travis.yml | ||
| CHANGELOG | ||
| CONTRIBUTING.md | ||
| i3status.c | ||
| i3status.conf | ||
| I3STATUS_VERSION | ||
| LICENSE | ||
| Makefile | ||
| README.md | ||
i3status
Description
i3status is a small program for generating a status bar for i3bar, dzen2, xmobar or similar programs. It is designed to be very efficient by issuing a very small number of system calls, as one generally wants to update such a status line every second. This ensures that even under high load, your status bar is updated correctly. Also, it saves a bit of energy by not hogging your CPU as much as spawning the corresponding amount of shell commands would.
Development
i3status has the following dependencies:
- libconfuse-dev
- libyajl-dev
- libasound2-dev
- libnl-genl-3-dev
- asciidoc (only for the documentation)
- libpulse-dev (for getting the current volume using PulseAudio)
On debian-based systems, the following line will install all requirements:
apt-get install libconfuse-dev libyajl-dev libasound2-dev libiw-dev asciidoc libpulse-dev libnl-genl-3-dev
Upstream
i3status is developed at https://github.com/i3/i3status
Compilation
Compiling is done with the usual make-line
make && sudo make install