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Auto merge of #116057 - RalfJung:io-safety, r=Mark-Simulacrum

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fix OS-specific I/O safety docs since the io_safety feature is stable

Looks like this text was forgotten to be updated when `io_safety` got stabilized: it still says "once the io_safety feature is stable".

Also adjust the wording a bit for how these docs relate to the general concept of I/O safety.
This commit is contained in:
bors 2023-09-25 00:17:13 +00:00
commit 5105b1ec58
2 changed files with 14 additions and 8 deletions
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11
library/std/src/os/unix/io/mod.rs
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@ -6,7 +6,8 @@
//!
//! This module provides three types for representing file descriptors,
//! with different ownership properties: raw, borrowed, and owned, which are
//! analogous to types used for representing pointers. These types reflect the Unix version of [I/O safety].
//! analogous to types used for representing pointers. These types reflect concepts of [I/O
//! safety][io-safety] on Unix.
//!
//! | Type | Analogous to |
//! | ------------------ | ------------ |
@ -17,8 +18,8 @@
//! Like raw pointers, `RawFd` values are primitive values. And in new code,
//! they should be considered unsafe to do I/O on (analogous to dereferencing
//! them). Rust did not always provide this guidance, so existing code in the
//! Rust ecosystem often doesn't mark `RawFd` usage as unsafe. Once the
//! `io_safety` feature is stable, libraries will be encouraged to migrate,
//! Rust ecosystem often doesn't mark `RawFd` usage as unsafe.
//! Libraries are encouraged to migrate,
//! either by adding `unsafe` to APIs that dereference `RawFd` values, or by
//! using to `BorrowedFd` or `OwnedFd` instead.
//!
@ -54,6 +55,8 @@
//! Like boxes, `OwnedFd` values conceptually own the resource they point to,
//! and free (close) it when they are dropped.
//!
//! See the [`io` module docs][io-safety] for a general explanation of I/O safety.
//!
//! ## `/proc/self/mem` and similar OS features
//!
//! Some platforms have special files, such as `/proc/self/mem`, which
@ -74,7 +77,7 @@
//! necessary to use *sandboxing*, which is outside the scope of `std`.
//!
//! [`BorrowedFd<'a>`]: crate::os::unix::io::BorrowedFd
//! [I/O safety]: crate::io#io-safety
//! [io-safety]: crate::io#io-safety
#![stable(feature = "rust1", since = "1.0.0")]

11
library/std/src/os/windows/io/mod.rs
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@ -6,7 +6,8 @@
//!
//! This module provides three types for representing raw handles and sockets
//! with different ownership properties: raw, borrowed, and owned, which are
//! analogous to types used for representing pointers. These types reflect the Windows version of [I/O safety].
//! analogous to types used for representing pointers. These types reflect concepts of [I/O
//! safety][io-safety] on Windows.
//!
//! | Type | Analogous to |
//! | ---------------------- | ------------ |
@ -23,8 +24,8 @@
//! And in new code, they should be considered unsafe to do I/O on (analogous
//! to dereferencing them). Rust did not always provide this guidance, so
//! existing code in the Rust ecosystem often doesn't mark `RawHandle` and
//! `RawSocket` usage as unsafe. Once the `io_safety` feature is stable,
//! libraries will be encouraged to migrate, either by adding `unsafe` to APIs
//! `RawSocket` usage as unsafe.
//! Libraries are encouraged to migrate, either by adding `unsafe` to APIs
//! that dereference `RawHandle` and `RawSocket` values, or by using to
//! `BorrowedHandle`, `BorrowedSocket`, `OwnedHandle`, or `OwnedSocket`.
//!
@ -45,9 +46,11 @@
//! Like boxes, `OwnedHandle` and `OwnedSocket` values conceptually own the
//! resource they point to, and free (close) it when they are dropped.
//!
//! See the [`io` module docs][io-safety] for a general explanation of I/O safety.
//!
//! [`BorrowedHandle<'a>`]: crate::os::windows::io::BorrowedHandle
//! [`BorrowedSocket<'a>`]: crate::os::windows::io::BorrowedSocket
//! [I/O safety]: crate::io#io-safety
//! [io-safety]: crate::io#io-safety
#![stable(feature = "rust1", since = "1.0.0")]