Panic with signal-hook

[gwenn]

See #879 (comment)

(Version 17.0.2 seems fine, only master seems impacted)

[gwenn]

This unrelated to enable_signals:

rustyline-clean % cargo run --example minimal --features signal-hook
> fatal runtime error: IO Safety violation: owned file descriptor already closed, aborting
zsh: abort      cargo run --example minimal --features signal-hook

[gwenn]

Last version (17.0.2) is not impacted.
Only current trunk is impacted.

[gwenn]

Panic occurs here:

rustyline/src/tty/unix.rs

Line 1344 in 3db8def

signal_hook::low_level::unregister(self.id);

[gwenn]

The issue seems to be with signal-hook only / unrelated to rustyline:

    let (pipe, pipe_write) = UnixStream::pair()?;
    pipe.set_nonblocking(true)?;
    let id = signal_hook::low_level::pipe::register(libc::SIGWINCH, pipe_write)?;
    signal_hook::low_level::unregister(id);
    drop(pipe);

[gwenn]

vorner/signal-hook#200

[gwenn]

Version 18.0.0 released