1 //! NOTE: Keep these constants in sync with `library/std/src/sys/unix/mod.rs`! 2 3 /// The default value if `#[unix_sigpipe]` is not specified. This resolves 4 /// to `SIG_IGN` in `library/std/src/sys/unix/mod.rs`. 5 /// 6 /// Note that `SIG_IGN` has been the Rust default since 2014. See 7 /// <https://github.com/rust-lang/rust/issues/62569>. 8 #[allow(dead_code)] 9 pub const DEFAULT: u8 = 0; 10 11 /// Do not touch `SIGPIPE`. Use whatever the parent process uses. 12 #[allow(dead_code)] 13 pub const INHERIT: u8 = 1; 14 15 /// Change `SIGPIPE` to `SIG_IGN` so that failed writes results in `EPIPE` 16 /// that are eventually converted to `ErrorKind::BrokenPipe`. 17 #[allow(dead_code)] 18 pub const SIG_IGN: u8 = 2; 19 20 /// Change `SIGPIPE` to `SIG_DFL` so that the process is killed when trying 21 /// to write to a closed pipe. This is usually the desired behavior for CLI 22 /// apps that produce textual output that you want to pipe to other programs 23 /// such as `head -n 1`. 24 #[allow(dead_code)] 25 pub const SIG_DFL: u8 = 3; 26