dwm-status/src/block/mem.rs

use systemstat::{saturating_sub_bytes, Platform, System};

use crate::block::Block;

pub struct Mem {}

impl Block for Mem {
    fn display(&self) -> String {
        let sys = System::new();

        if let Ok(mem) = sys.memory() {
            format!("{}", saturating_sub_bytes(mem.total, mem.free))
        } else {
            "".to_string()
        }
    }
}