rustc_session/config/sigpipe.rs
1//! NOTE: Keep these constants in sync with `library/std/src/sys/pal/unix/mod.rs`!
2
3/// The default value if `-Zon-broken-pipe=...` is not specified. This resolves
4/// to `SIG_IGN` in `library/std/src/sys/pal/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)]
9pub const DEFAULT: u8 = 0;
10
11/// Do not touch `SIGPIPE`. Use whatever the parent process uses.
12#[allow(dead_code)]
13pub 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)]
18pub 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)]
25pub const SIG_DFL: u8 = 3;