Function readchar

src/sys/console.rs:381–415

Read character

()

// Read character
pub fn readchar() -> char
{
	// Disable echo
	echo_off();

	// Enable raw
	raw_on();

	loop
	{
		crate::time::halt();
		let res = interrupts::without_interrupts(||
		{
			let mut stdin = STDIN.lock();
			if !stdin.is_empty()
			{
				Some(stdin.remove(0))
			}
			else
			{
				None
			}
		});

		if let Some(c) = res
		{
			// Enable echo
			crate::sys::console::echo_on();

			// Disable raw
			crate::sys::console::raw_off();
			return c;
		}
	}
}


// Read line