Initial project import

tools/v/vlib/term/termios/termios_default.c.v

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+// Copyright (c) 2019-2024 Alexander Medvednikov. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+module termios
+
+// not used but needed for function declarations
+type TcFlag = int
+type Speed = int
+type Cc = u8
+
+// Termios represents platform dependent flags representing the terminal state.
+// Linux      https://github.com/lattera/glibc/blob/master/sysdeps/unix/sysv/linux/bits/termios.h
+// OpenBSD    https://github.com/openbsd/src/blob/master/sys/sys/termios.h
+// FreeBSD    https://web.mit.edu/freebsd/head/sys/sys/_termios.h
+// Solaris    https://github.com/omniti-labs/illumos-omnios/blob/master/usr/src/uts/common/sys/termios.h
+// DragonFly  https://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/sys/_termios.h
+// QNX        https://github.com/vocho/openqnx/blob/master/trunk/lib/c/public/termios.h
+pub struct Termios {
+pub mut:
+	c_iflag  TcFlag
+	c_oflag  TcFlag
+	c_cflag  TcFlag
+	c_lflag  TcFlag
+	c_line   Cc
+	c_cc     [32]Cc
+	c_ispeed Speed
+	c_ospeed Speed
+}
+
+// flag provides a termios flag of the correct size for the underlying C.termios structure.
+pub fn flag(value int) TcFlag {
+	return TcFlag(value)
+}
+
+// invert is a platform dependant way to bitwise NOT (~) TcFlag as its length varies across platforms.
+// It is only implemented for Unix like OSes.
+pub fn invert(value TcFlag) TcFlag {
+	return TcFlag(~int(value))
+}
+
+// tcgetattr is an unsafe wrapper around C.termios and keeps its semantic.
+// It is only implemented for Unix like OSes
+pub fn tcgetattr(fd int, mut t Termios) int {
+	$if wasm32_emscripten {
+		return 0
+	}
+	eprintln('term.termios: tcgetattr,tcsetattr,ioctl,set_state are not implemented for the platform')
+	eprintln('tcgetattr, fd: ${fd}, t: ${t}')
+	return 0
+}
+
+// tcsetattr is an unsafe wrapper around C.termios and keeps its semantic.
+// It is only implemented for Unix like OSes.
+pub fn tcsetattr(fd int, optional_actions int, mut t Termios) int {
+	eprintln('tcsetattr, fd: ${fd}, optional_actions: ${optional_actions}, t: ${t}')
+	return 0
+}
+
+// ioctl is an unsafe wrapper around C.ioctl and keeps its semantic.
+// It is only implemented for Unix like OSes
+pub fn ioctl(fd int, request u64, arg voidptr) int {
+	eprintln('ioctl, fd: ${fd}, request: ${request}, arg: ${arg}')
+	return 0
+}
+
+// set_state applies the flags in the `new_state` to the descriptor `fd`.
+pub fn set_state(fd int, new_state Termios) int {
+	eprintln('set_state, fd: ${fd} | new_state: ${new_state}')
+	return 0
+}
+
+// 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(8)
+}