Tracking Issue for `unix_send_signal`

Feature gate: #![feature(unix_send_signal)]

This is a tracking issue for API to send a signal to a child process via libc kill.

Public API

// std::os::unix::process

pub trait ChildExt {
    fn send_signal(&self, signal: i32) -> Result<()>;
    fn send_process_group_signal(&self, signal: i32) -> io::Result<()>;
    fn kill_process_group(&mut self) -> io::Result<()>;
}

impl ChildExt for std::process::Child { /* ... */ }

Steps / History

(Remember to update the S-tracking-* label when checking boxes.)

• ACP: https://github.com/rust-lang/libs-team/issues/97
• Incomplete implementation https://github.com/rust-lang/rust/pull/101387
• Implementation: https://github.com/rust-lang/rust/pull/141990
• Final comment period (FCP)^1
• Stabilization PR

Unresolved Questions

• Should the signal be an i32 or an enum? Should we provide some SIG* constants so the user doesn't have to depend on libc? See discussion at the ACP https://github.com/rust-lang/libs-team/issues/97
• Is there some reason our preexisting internal implementation took &mut? See discussion at https://github.com/rust-lang/rust/pull/141990.

Start with the public API and the ACP at rust-lang/libs-team#97, then review the incomplete and implementation PRs linked in the tracking issue. Resolve the listed questions about the signal type, constants, and mutability, then follow the FCP and stabilization PR steps; done means the feature completes stabilization.