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use procfs::{diskstats, process::Process, DiskStat};
use std::collections::HashMap;
use std::iter::FromIterator;
fn main() {
let me = Process::myself().unwrap();
let mounts = me.mountinfo().unwrap();
// Get a list of all disks that we have IO stat info on
let disk_stats: HashMap<(i32, i32), DiskStat> =
HashMap::from_iter(diskstats().unwrap().into_iter().map(|i| ((i.major, i.minor), i)));
for mount in mounts {
// parse the majmin string (something like "0:3") into an (i32, i32) tuple
let (maj, min): (i32, i32) = {
let mut s = mount.majmin.split(':');
(s.next().unwrap().parse().unwrap(), s.next().unwrap().parse().unwrap())
};
if let Some(stat) = disk_stats.get(&(maj, min)) {
println!("{} mounted on {}:", stat.name, mount.mount_point.display());
println!(" total reads: {} ({} ms)", stat.reads, stat.time_reading);
println!(" total writes: {} ({} ms)", stat.writes, stat.time_writing);
println!(
" total flushes: {} ({} ms)",
stat.flushes.unwrap_or(0),
stat.time_flushing.unwrap_or(0)
);
}
}
}
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