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2024-05-02Change `SIGPIPE` ui from `#[unix_sigpipe = "..."]` to `-Zon-broken-pipe=...`Martin Nordholts-1/+1
In the stabilization attempt of `#[unix_sigpipe = "sig_dfl"]`, a concern was raised related to using a language attribute for the feature: Long term, we want `fn lang_start()` to be definable by any crate, not just libstd. Having a special language attribute in that case becomes awkward. So as a first step towards towards the next stabilization attempt, this PR changes the `#[unix_sigpipe = "..."]` attribute to a compiler flag `-Zon-broken-pipe=...` to remove that concern, since now the language is not "contaminated" by this feature. Another point was also raised, namely that the ui should not leak **how** it does things, but rather what the **end effect** is. The new flag uses the proposed naming. This is of course something that can be iterated on further before stabilization.
2024-01-12update paths in commentsjoboet-2/+2
2022-10-20Change process spawning to inherit the parent's signal mask by defaultRain-5/+8
Previously, the signal mask is always reset when a child process is started. This breaks tools like `nohup` which expect `SIGHUP` to be blocked. With this change, the default behavior changes to inherit the signal mask. This also changes the signal disposition for `SIGPIPE` to only be changed if the `#[unix_sigpipe]` attribute isn't set.
2022-08-31unix_sigpipe: Inline compiler sigpipe constants in stdMartin Nordholts-0/+2
2022-08-28Support `#[unix_sigpipe = "inherit|sig_dfl|sig_ign"]` on `fn main()`Martin Nordholts-0/+20
This makes it possible to instruct libstd to never touch the signal handler for `SIGPIPE`, which makes programs pipeable by default (e.g. with `./your-program | head -n 1`) without `ErrorKind::BrokenPipe` errors.