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    fn get_size(&self, metadata: &Metadata) -> Self::Size {
21        metadata.len().into()
22    }
23}
24
25/// Returns [`metadata.blocks() * 512`](Metadata::blksize) (POSIX only).
26#[cfg(unix)]
27#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
28pub struct GetBlockSize;
29#[cfg(unix)]
30impl GetSize for GetBlockSize {
31    type Size = Bytes;
32    fn get_size(&self, metadata: &Metadata) -> Self::Size {
33        (metadata.blocks() * 512).into()
34    }
35}
36
37/// Returns [`metadata.blocks()`](Metadata::blocks) (POSIX only).
38#[cfg(unix)]
39#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
40pub struct GetBlockCount;
41#[cfg(unix)]
42impl GetSize for GetBlockCount {
43    type Size = Blocks;
44    fn get_size(&self, metadata: &Metadata) -> Self::Size {
45        metadata.blocks().into()
46    }
47}
parallel_disk_usage/get_size.rs

parallel_disk_usage/
get_size.rs
