heim-process 0.1.0

Cross-platform processes information
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

use std::path::{Path, PathBuf};

use heim_common::prelude::*;
use crate::EnvOs;

pub fn read_exe<T: AsRef<Path>>(path: T) -> impl Future<Item=Option<PathBuf>, Error=Error> {
    let path = path.as_ref().join("exe");
    tokio::fs::read_link(path)
        .map(Some)
        // TODO: psutil also checks if ENOENT or ESRCH returned
        // https://github.com/giampaolo/psutil/blob/05d51649ca709c6626d84cc710c2470d64829848/psutil/_pslinux.py#L1624
        // At the moment returning `None` all the time
        .or_else(|_| Ok(None))
}

pub fn read_environ<T: AsRef<Path>>(path: T) -> impl Future<Item=EnvOs, Error=Error> {
    let path = path.as_ref().join("environ");
    tokio::fs::read(path)
        .map(|contents| {
            EnvOs::from_bytes(&contents)
        })
        .map_err(Error::from)
}