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mod raw_guard;
#[cfg(feature = "async")]
mod main {
use smol::io::{AsyncReadExt as _, AsyncWriteExt as _};
pub async fn run(
child: &async_process::Child,
pty: &pty_process::Pty,
) -> std::result::Result<(), Box<dyn std::error::Error>> {
let _raw = super::raw_guard::RawGuard::new();
let mut input_pty = pty;
let mut output_pty = pty;
let ex = smol::Executor::new();
let input = ex.spawn(async {
let mut buf = [0_u8; 4096];
let mut stdin = smol::Unblock::new(std::io::stdin());
loop {
match stdin.read(&mut buf).await {
Ok(bytes) => {
input_pty.write_all(&buf[..bytes]).await.unwrap();
}
Err(e) => {
eprintln!("stdin read failed: {:?}", e);
break;
}
}
}
});
let output = ex.spawn(async {
let mut buf = [0_u8; 4096];
let mut stdout = smol::Unblock::new(std::io::stdout());
loop {
match output_pty.read(&mut buf).await {
Ok(bytes) => {
stdout.write_all(&buf[..bytes]).await.unwrap();
stdout.flush().await.unwrap();
}
Err(e) => {
eprintln!("pty read failed: {:?}", e);
break;
}
}
}
});
let wait = async {
child.status_no_drop().await.unwrap();
};
ex.run(smol::future::or(smol::future::or(input, output), wait))
.await;
Ok(())
}
}
#[cfg(feature = "async")]
fn main() {
use std::os::unix::process::ExitStatusExt as _;
let status = smol::block_on(async {
let pty = pty_process::Pty::new().unwrap();
pty.resize(pty_process::Size::new(24, 80)).unwrap();
let mut child = pty_process::Command::new("tac")
// .args(&["500"])
.spawn(&pty)
.unwrap();
main::run(&child, &pty).await.unwrap();
child.status().await.unwrap()
});
std::process::exit(
status
.code()
.unwrap_or_else(|| status.signal().unwrap_or(0) + 128),
);
}
#[cfg(not(feature = "async"))]
fn main() {
unimplemented!()
}
|
