termion/examples/async.rs

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Rust
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2016-03-15 20:36:33 +00:00
extern crate termion;
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use termion::{TermWrite, IntoRawMode, async_stdin};
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use std::io::{Read, Write, stdout, stdin};
use std::thread;
use std::time::Duration;
fn main() {
let stdout = stdout();
let mut stdout = stdout.lock().into_raw_mode().unwrap();
let mut stdin = async_stdin().bytes();
stdout.clear().unwrap();
stdout.goto(0, 0).unwrap();
loop {
stdout.clear_line().unwrap();
let b = stdin.next();
write!(stdout, "\r{:?} <- This demonstrates the async read input char. Between each update a 100 ms. is waited, simply to demonstrate the async fashion. \n\r", b).unwrap();
if let Some(Ok(b'q')) = b {
break;
}
stdout.flush().unwrap();
thread::sleep(Duration::from_millis(50));
stdout.write(b"# ").unwrap();
stdout.flush().unwrap();
thread::sleep(Duration::from_millis(50));
stdout.write(b"\r #").unwrap();
stdout.goto(0, 0).unwrap();
stdout.flush().unwrap();
}
}