Function tcsetattr

crates/stdlib/src/termios.rs:198–237

(fd: i32, when: i32, attributes: PyListRef, vm: &VirtualMachine)

    #[pyfunction]
    fn tcsetattr(fd: i32, when: i32, attributes: PyListRef, vm: &VirtualMachine) -> PyResult<()> {
        let [iflag, oflag, cflag, lflag, ispeed, ospeed, cc] =
            <&[PyObjectRef; 7]>::try_from(&*attributes.borrow_vec())
                .map_err(|_| vm.new_type_error("tcsetattr, arg 3: must be 7 element list"))?
                .clone();
        let mut termios = Termios::from_fd(fd).map_err(|e| termios_error(e, vm))?;
        termios.c_iflag = iflag.try_into_value(vm)?;
        termios.c_oflag = oflag.try_into_value(vm)?;
        termios.c_cflag = cflag.try_into_value(vm)?;
        termios.c_lflag = lflag.try_into_value(vm)?;
        termios::cfsetispeed(&mut termios, ispeed.try_into_value(vm)?)
            .map_err(|e| termios_error(e, vm))?;
        termios::cfsetospeed(&mut termios, ospeed.try_into_value(vm)?)
            .map_err(|e| termios_error(e, vm))?;
        let cc = PyListRef::try_from_object(vm, cc)?;
        let cc = cc.borrow_vec();
        let cc = <&[PyObjectRef; NCCS]>::try_from(&*cc).map_err(|_| {
            vm.new_type_error(format!(
                "tcsetattr: attributes[6] must be {NCCS} element list"
            ))
        })?;
        for (cc, x) in termios.c_cc.iter_mut().zip(cc.iter()) {
            *cc = if let Some(c) = x
                .downcast_ref::<PyBytes>()
                .filter(|b| b.as_bytes().len() == 1)
            {
                c.as_bytes()[0] as _
            } else if let Some(i) = x.downcast_ref::<PyInt>() {
                i.try_to_primitive(vm)?
            } else {
                return Err(vm.new_type_error(
                    "tcsetattr: elements of attributes must be characters or integers",
                ));
            };
        }

        termios::tcsetattr(fd, when, &termios).map_err(|e| termios_error(e, vm))?;

        Ok(())
    }

    #[pyfunction]
    fn tcsendbreak(fd: i32, duration: i32, vm: &VirtualMachine) -> PyResult<()> {