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/// An allocated pty
pub struct Pty(crate::sys::Pty);
impl Pty {
/// Allocate and return a new pty.
///
/// # Errors
/// Returns an error if the pty failed to be allocated.
pub fn new() -> crate::Result<Self> {
Ok(Self(crate::sys::Pty::open()?))
}
/// Change the terminal size associated with the pty.
///
/// # Errors
/// Returns an error if we were unable to set the terminal size.
pub fn resize(&self, size: crate::Size) -> crate::Result<()> {
self.0.set_term_size(size)
}
/// Opens a file descriptor for the other end of the pty, which should be
/// attached to the child process running in it. See
/// [`Command::spawn`](crate::blocking::Command::spawn).
///
/// # Errors
/// Returns an error if the device node to open could not be determined,
/// or if the device node could not be opened.
pub fn pts(&self) -> crate::Result<Pts> {
Ok(Pts(self.0.pts()?))
}
}
impl From<Pty> for std::os::fd::OwnedFd {
fn from(pty: Pty) -> Self {
pty.0.into()
}
}
impl std::os::fd::AsFd for Pty {
fn as_fd(&self) -> std::os::fd::BorrowedFd<'_> {
self.0.as_fd()
}
}
impl std::io::Read for Pty {
fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
self.0.read(buf)
}
}
impl std::io::Write for Pty {
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
self.0.write(buf)
}
fn flush(&mut self) -> std::io::Result<()> {
self.0.flush()
}
}
impl std::io::Read for &Pty {
fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
(&self.0).read(buf)
}
}
impl std::io::Write for &Pty {
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
(&self.0).write(buf)
}
fn flush(&mut self) -> std::io::Result<()> {
(&self.0).flush()
}
}
/// The child end of the pty
///
/// See [`Pty::pts`] and [`Command::spawn`](crate::blocking::Command::spawn)
pub struct Pts(pub(crate) crate::sys::Pts);
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