rust/library/std/src/sys/wasi/stdio.rs, branch 1.76.0

Consolidate AsFd instances for stdio types into `library/std/src/os/fd/owned.rs`

2022-10-10T13:47:22+00:00

impl AsFd for io::{Stdin, Stdout, Stderr}, not the sys versions

2022-10-09T18:01:56+00:00

https://github.com/rust-lang/rust/pull/100892 implemented AsFd for the sys versions, rather than for the public types. Change the implementations to apply to the public types.

Add SAFETY comments for AsFd implementations on stdin/stdout/stderr

2022-10-03T15:30:58+00:00

Add stability attributes.

2022-10-03T15:30:55+00:00

Add `AsFd` implementations for stdio lock types on WASI.

2022-09-22T23:16:39+00:00

This mirrors the implementations on Unix platforms, and also mirrors the existing `AsRawFd` impls. This is similar to #100892, but is for the `*Lock` types.

Add `AsFd` implementations for stdio types on WASI.

2022-08-22T22:46:41+00:00

This mirrors the implementations on Unix platforms, and also mirrors the existing `AsRawFd` impls.

wasi: update to wasi 0.11.0

2022-01-28T12:27:29+00:00

To make use of `sock_accept()`, update the wasi crate to `0.11.0`. Signed-off-by: Harald Hoyer

I/O safety.

2021-08-19T19:02:39+00:00

Introduce `OwnedFd` and `BorrowedFd`, and the `AsFd` trait, and implementations of `AsFd`, `From` and `From for OwnedFd` for relevant types, along with Windows counterparts for handles and sockets. Tracking issue: - RFC: -

Change WASI's `RawFd` from `u32` to `c_int` (`i32`).

2021-08-13T16:10:22+00:00

WASI previously used `u32` as its `RawFd` type, since its "file descriptors" are unsigned table indices, and there's no fundamental reason why WASI can't have more than 2^31 handles. However, this creates myriad little incompability problems with code that also supports Unix platforms, where `RawFd` is `c_int`. While WASI isn't a Unix, it often shares code with Unix, and this difference made such shared code inconvenient. #87329 is the most recent example of such code. So, switch WASI to use `c_int`, which is `i32`. This will mean that code intending to support WASI should ideally avoid assuming that negative file descriptors are invalid, even though POSIX itself says that file descriptors are never negative. This is a breaking change, but `RawFd` is considerd an experimental feature in [the documentation]. [the documentation]: https://doc.rust-lang.org/stable/std/os/wasi/io/type.RawFd.html

x.py fmt

2021-02-24T18:58:21+00:00