Does not respond well to Ctrl-C, Ctrl-D or SIGKILL

[KostaCitrix]

When I run cargo run --example readline and then press Ctrl-C or Ctrl-D, nothing happens.

I think this is missing the check for zero in lib.rs:127.

From the linux man page:

On success, the number of bytes read is returned (zero indicates end of file)

• https://linux.die.net/man/2/read

I tried simply returning an Err::new(UnexpectedEof, ...) but that gets ignored. I'm not sure how to tell tokio to handle errors here but maybe you know :)

[Kintaro]

Looking at tokio-signal might be helpful there

[dpc]

Ctrl-D or Ctrl-C produce either a signal like @Kintaro said, or just some combination of keys. handle_char should be a proper state machine and detect such conditions, and make the futures::Stream finish by returning Ready(None).