eutils_rs/proc/
pid_fd.rs

1use super::FdType;
2use anyhow::Result;
3
4use std::{
5    fs,
6    path::{Path, PathBuf},
7};
8
9#[derive(Debug)]
10pub struct PidFd {
11    fdtype: FdType,
12}
13
14impl PidFd {
15    pub fn from_file<P>(path: P) -> Result<PidFd>
16    where
17        P: AsRef<Path>,
18    {
19        let inf = fs::read_link(path)?;
20        let mut fdtype = FdType::Unknown;
21
22        if let Some(name) = inf.to_str() {
23            // socket:[inum]
24            if name.starts_with("socket") {
25                fdtype = FdType::SocketFd(name[8..name.len() - 1].parse()?);
26            }
27        }
28        Ok(PidFd { fdtype })
29    }
30
31    pub fn fdtype(&self) -> FdType {
32        self.fdtype
33    }
34}
35
36#[cfg(test)]
37mod tests {
38    use super::*;
39    #[test]
40    fn test_pidfs_from_file() {
41        let pidfd = PidFd::from_file("/proc/1/fd/70");
42        assert_eq!(pidfd.is_ok(), true);
43    }
44}
eutils_rs/proc/pid_fd.rs

eutils_rs/proc/
pid_fd.rs
