parallel_disk_usage/
get_size.rs

1use super::size::Bytes;
2use std::fs::Metadata;
3
4#[cfg(unix)]
5use super::size::Blocks;
6#[cfg(unix)]
7use std::os::unix::prelude::MetadataExt;
8
9/// Infers size from a [`Metadata`].
10pub trait GetSize {
11    type Size;
12    fn get_size(&self, metadata: &Metadata) -> Self::Size;
13}
14
15/// Returns [`metadata.len()`](Metadata::len).
16#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
17pub struct GetApparentSize;
18impl GetSize for GetApparentSize {
19    type Size = Bytes;
20    #[inline]
21    fn get_size(&self, metadata: &Metadata) -> Self::Size {
22        metadata.len().into()
23    }
24}
25
26/// Returns [`metadata.blocks() * 512`](Metadata::blksize) (POSIX only).
27#[cfg(unix)]
28#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
29pub struct GetBlockSize;
30#[cfg(unix)]
31impl GetSize for GetBlockSize {
32    type Size = Bytes;
33    #[inline]
34    fn get_size(&self, metadata: &Metadata) -> Self::Size {
35        (metadata.blocks() * 512).into()
36    }
37}
38
39/// Returns [`metadata.blocks()`](Metadata::blocks) (POSIX only).
40#[cfg(unix)]
41#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
42pub struct GetBlockCount;
43#[cfg(unix)]
44impl GetSize for GetBlockCount {
45    type Size = Blocks;
46    #[inline]
47    fn get_size(&self, metadata: &Metadata) -> Self::Size {
48        metadata.blocks().into()
49    }
50}
parallel_disk_usage/get_size.rs

parallel_disk_usage/
get_size.rs
