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Impl fetching /proc/loadavg

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This commit is contained in:
Stephen Seo 2022-07-09 17:04:49 +09:00
parent 0df98bc2a9
commit d7990af228
2 changed files with 31 additions and 5 deletions
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15
src/main.rs
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@ -10,10 +10,15 @@ fn main() {
println!("[");
let mut array = swaybar_object::SwaybarArray::new();
array.push_object(swaybar_object::SwaybarObject::default());
array.push_object(swaybar_object::SwaybarObject::new());
array.push_object(swaybar_object::SwaybarObject::default());
let meminfo_string = proc::get_meminfo().expect("Should be able to get meminfo");
let meminfo_object = swaybar_object::SwaybarObject::from_string(meminfo_string);
array.push_object(meminfo_object);
{
let meminfo_string = proc::get_meminfo().expect("Should be able to get meminfo");
let meminfo_object = swaybar_object::SwaybarObject::from_string(meminfo_string);
array.push_object(meminfo_object);
}
{
let loadavg_string = proc::get_loadavg().expect("Should be able to get loadavg");
let loadavg_object = swaybar_object::SwaybarObject::from_string(loadavg_string);
array.push_object(loadavg_object);
}
println!("{}", array);
}

21
src/proc.rs
View file

@ -65,3 +65,24 @@ pub fn get_meminfo() -> io::Result<String> {
Ok(output)
}
}
pub fn get_loadavg() -> io::Result<String> {
let mut loadavg_string = String::new();
{
let mut loadavg_file: File = File::open("/proc/loadavg")?;
loadavg_file.read_to_string(&mut loadavg_string)?;
}
let loadavg_parts: Vec<&str> = loadavg_string.split_whitespace().collect();
if loadavg_parts.len() < 3 {
return Err(io::Error::new(
io::ErrorKind::Other,
"loadavg: failed to parse",
));
}
Ok(format!(
"{} {} {}",
loadavg_parts[0], loadavg_parts[1], loadavg_parts[2]
))
}