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use crate::error::*;
use std::os::unix::io::FromRawFd as _;
pub struct Pty {
pt: std::fs::File,
ptsname: std::path::PathBuf,
}
impl super::Pty for Pty {
fn new() -> Result<Self> {
let (pt_fd, ptsname) = super::create_pt()?;
// safe because posix_openpt (or the previous functions operating on
// the result) would have returned an Err (causing us to return early)
// if the file descriptor was invalid. additionally, into_raw_fd gives
// up ownership over the file descriptor, allowing the newly created
// File object to take full ownership.
let pt = unsafe { std::fs::File::from_raw_fd(pt_fd) };
Ok(Self { pt, ptsname })
}
fn pt(&self) -> &std::fs::File {
&self.pt
}
fn pts(&self) -> Result<std::fs::File> {
let fh = std::fs::OpenOptions::new()
.read(true)
.write(true)
.open(&self.ptsname)
.map_err(|e| Error::OpenPts(self.ptsname.clone(), e))?;
Ok(fh)
}
}
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