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unix_sigpipe: Add docs for init() sigpipe param

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This commit is contained in:
Martin Nordholts 2022-08-31 18:11:48 +02:00
parent 236903f7e9
commit 3d1a4e4f27
2 changed files with 4 additions and 0 deletions
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2
library/std/src/rt.rs
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@ -72,6 +72,8 @@ macro_rules! rtunwrap {
// Runs before `main`.
// SAFETY: must be called only once during runtime initialization.
// NOTE: this is not guaranteed to run, for example when Rust code is called externally.
// The extra parameter `sigpipe` allows rustc to generate code that instructs std whether
// or not to ignore `SIGPIPE`.
#[cfg_attr(test, allow(dead_code))]
unsafe fn init(argc: isize, argv: *const *const u8, sigpipe: u8) {
unsafe {

2
library/std/src/sys/unix/mod.rs
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@ -49,6 +49,8 @@ pub fn init(argc: isize, argv: *const *const u8, _sigpipe: u8) {}
#[cfg(not(target_os = "espidf"))]
// SAFETY: must be called only once during runtime initialization.
// NOTE: this is not guaranteed to run, for example when Rust code is called externally.
// The extra parameter `sigpipe` allows rustc to generate code that instructs std whether
// or not to ignore `SIGPIPE`.
pub unsafe fn init(argc: isize, argv: *const *const u8, sigpipe: u8) {
// The standard streams might be closed on application startup. To prevent
// std::io::{stdin, stdout,stderr} objects from using other unrelated file