agave_fs/
file_info.rs

1use std::{fs::File, io, path::PathBuf};
2
3/// Open `File` coupled with its filesystem location and most useful information
4///
5/// The attached context for the `File` is kept minimal to make it easy to construct
6/// without unnecessary kernel queries, but allowing users to:
7/// * associate the file received in callbacks to the request (by its path)
8/// * get the file's most useful metadata information
9#[derive(Debug)]
10pub struct FileInfo {
11    pub file: File,
12    pub path: PathBuf,
13    pub size: u64,
14}
15
16impl FileInfo {
17    /// Create new instance by opening a file from a given `path` and reading its metadata
18    pub fn new_from_path(path: impl Into<PathBuf>) -> io::Result<Self> {
19        let path = path.into();
20        let file = File::open(&path)?;
21        Self::new_from_path_and_file(path, file)
22    }
23
24    /// Create new instance by using already open `file` and only reading its metadata
25    pub fn new_from_path_and_file(path: impl Into<PathBuf>, file: File) -> io::Result<Self> {
26        let size = file.metadata()?.len();
27        Ok(Self {
28            path: path.into(),
29            size,
30            file,
31        })
32    }
33}
agave_fs/file_info.rs

agave_fs/
file_info.rs
