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use ::DiskExt;
use ::utils;
use libc::statfs;
use std::mem;
use std::fmt::{Debug, Error, Formatter};
use std::path::{Path, PathBuf};
use std::ffi::{OsStr, OsString};
#[derive(Debug, PartialEq, Clone, Copy)]
pub enum DiskType {
HDD,
SSD,
Unknown(isize),
}
impl From<isize> for DiskType {
fn from(t: isize) -> DiskType {
match t {
0 => DiskType::HDD,
1 => DiskType::SSD,
id => DiskType::Unknown(id),
}
}
}
pub fn new(name: OsString, mount_point: &Path, type_: DiskType) -> Disk {
let mount_point_cpath = utils::to_cpath(mount_point);
let mut total_space = 0;
let mut available_space = 0;
let mut file_system = None;
unsafe {
let mut stat: statfs = mem::zeroed();
if statfs(mount_point_cpath.as_ptr() as *const i8, &mut stat) == 0 {
total_space = u64::from(stat.f_bsize) * stat.f_blocks;
available_space = stat.f_bfree * stat.f_blocks;
let mut vec = Vec::with_capacity(stat.f_fstypename.len());
for x in &stat.f_fstypename {
if *x == 0 {
break
}
vec.push(*x as u8);
}
file_system = Some(vec);
}
}
Disk {
type_,
name,
file_system: file_system.unwrap_or_else(|| b"<Unknown>".to_vec()),
mount_point: mount_point.to_owned(),
total_space,
available_space,
}
}
pub struct Disk {
type_: DiskType,
name: OsString,
file_system: Vec<u8>,
mount_point: PathBuf,
total_space: u64,
available_space: u64,
}
impl Debug for Disk {
fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error> {
write!(fmt,
"Disk({:?})[FS: {:?}][Type: {:?}] mounted on {:?}: {}/{} B",
self.get_name(), self.get_file_system(), self.get_type(), self.get_mount_point(),
self.get_available_space(), self.get_total_space())
}
}
impl DiskExt for Disk {
fn get_type(&self) -> DiskType {
self.type_
}
fn get_name(&self) -> &OsStr {
&self.name
}
fn get_file_system(&self) -> &[u8] {
&self.file_system
}
fn get_mount_point(&self) -> &Path {
&self.mount_point
}
fn get_total_space(&self) -> u64 {
self.total_space
}
fn get_available_space(&self) -> u64 {
self.available_space
}
fn update(&mut self) -> bool {
unsafe {
let mut stat: statfs = mem::zeroed();
let mount_point_cpath = utils::to_cpath(&self.mount_point);
if statfs(mount_point_cpath.as_ptr() as *const i8, &mut stat) == 0 {
self.available_space = u64::from(stat.f_bsize) * stat.f_bavail;
true
} else {
false
}
}
}
}