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v/vlib/term/termios/termios_darwin.c.v

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// Copyright (c) 2019-2023 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
//
// Serves as more advanced input method
// based on the work of https://github.com/AmokHuginnsson/replxx
//
module termios
#include <termios.h>
#include <sys/ioctl.h>
// https://github.com/apple/darwin-xnu/blob/main/bsd/sys/termios.h
const cclen = 20
type TcFlag = usize
type Speed = usize
type Cc = u8
// Termios stores the terminal options
struct C.termios {
mut:
c_iflag TcFlag
c_oflag TcFlag
c_cflag TcFlag
c_lflag TcFlag
c_cc [cclen]Cc
c_ispeed Speed
c_ospeed Speed
}
fn C.tcgetattr(fd int, termios_p &C.termios) int
fn C.tcsetattr(fd int, optional_actions int, const_termios_p &C.termios) int
fn C.ioctl(fd int, request u64, arg voidptr) int
// flag provides a termios flag of the correct size
// for the underlying C.termios structure
[inline]
pub fn flag(value int) TcFlag {
return usize(value)
}
// invert is a platform dependant way to bitwise NOT (~) TcFlag
// as its length varies across platforms
[inline]
pub fn invert(value TcFlag) TcFlag {
return ~usize(value)
}
pub struct Termios {
pub mut:
c_iflag TcFlag
c_oflag TcFlag
c_cflag TcFlag
c_lflag TcFlag
c_cc [cclen]Cc
c_ispeed Speed
c_ospeed Speed
}
// tcgetattr is an unsafe wrapper around C.termios and keeps its semantic
[inline]
pub fn tcgetattr(fd int, mut termios_p Termios) int {
unsafe {
return C.tcgetattr(fd, &C.termios(termios_p))
}
}
// tcsetattr is an unsafe wrapper around C.termios and keeps its semantic
[inline]
pub fn tcsetattr(fd int, optional_actions int, mut termios_p Termios) int {
unsafe {
return C.tcsetattr(fd, optional_actions, &C.termios(termios_p))
}
}
// ioctl is an unsafe wrapper around C.ioctl and keeps its semantic
[inline]
pub fn ioctl(fd int, request u64, arg voidptr) int {
unsafe {
return C.ioctl(fd, request, arg)
}
}
// set_state applies the flags in the `new_state` to the descriptor `fd`.
pub fn set_state(fd int, new_state Termios) int {
mut x := new_state
return tcsetattr(0, C.TCSANOW, mut x)
}
// disable_echo disables echoing characters as they are typed,
// when that Termios state is later set with termios.set_state(fd,t)
pub fn (mut t Termios) disable_echo() {
t.c_lflag &= invert(C.ECHO)
}