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Rollup merge of #122880 - a1phyr:preadv_more_platform, r=workingjubilee

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Unix: Support more platforms with `preadv` and `pwritev`

- `aix`, `dragonfly` and `openbsd` with direct call
- `watchos` with weak linkage

cc #89517
This commit is contained in:
Matthias Krüger 2024-03-27 05:21:15 +01:00 committed by GitHub
commit 4bdf1711c6
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1 changed files with 22 additions and 6 deletions
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28
library/std/src/sys/pal/unix/fd.rs
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@ -167,6 +167,8 @@ impl FileDesc {
}
#[cfg(any(
target_os = "aix",
target_os = "dragonfly", // DragonFly 1.5
target_os = "emscripten",
target_os = "freebsd",
target_os = "fuchsia",
@ -174,6 +176,7 @@ impl FileDesc {
target_os = "illumos",
target_os = "linux",
target_os = "netbsd",
target_os = "openbsd", // OpenBSD 2.7
))]
pub fn read_vectored_at(&self, bufs: &mut [IoSliceMut<'_>], offset: u64) -> io::Result<usize> {
let ret = cvt(unsafe {
@ -188,7 +191,9 @@ impl FileDesc {
}
#[cfg(not(any(
target_os = "aix",
target_os = "android",
target_os = "dragonfly",
target_os = "emscripten",
target_os = "freebsd",
target_os = "fuchsia",
@ -199,6 +204,8 @@ impl FileDesc {
target_os = "linux",
target_os = "macos",
target_os = "netbsd",
target_os = "openbsd",
target_os = "watchos",
)))]
pub fn read_vectored_at(&self, bufs: &mut [IoSliceMut<'_>], offset: u64) -> io::Result<usize> {
io::default_read_vectored(|b| self.read_at(b, offset), bufs)
@ -236,9 +243,10 @@ impl FileDesc {
// no `syscall` possible in these platform.
#[cfg(any(
all(target_os = "android", target_pointer_width = "32"),
target_os = "ios",
target_os = "tvos",
target_os = "macos",
target_os = "ios", // ios 14.0
target_os = "tvos", // tvos 14.0
target_os = "macos", // macos 11.0
target_os = "watchos", // watchos 7.0
))]
pub fn read_vectored_at(&self, bufs: &mut [IoSliceMut<'_>], offset: u64) -> io::Result<usize> {
super::weak::weak!(fn preadv64(libc::c_int, *const libc::iovec, libc::c_int, off64_t) -> isize);
@ -318,6 +326,8 @@ impl FileDesc {
}
#[cfg(any(
target_os = "aix",
target_os = "dragonfly", // DragonFly 1.5
target_os = "emscripten",
target_os = "freebsd",
target_os = "fuchsia",
@ -325,6 +335,7 @@ impl FileDesc {
target_os = "illumos",
target_os = "linux",
target_os = "netbsd",
target_os = "openbsd", // OpenBSD 2.7
))]
pub fn write_vectored_at(&self, bufs: &[IoSlice<'_>], offset: u64) -> io::Result<usize> {
let ret = cvt(unsafe {
@ -339,7 +350,9 @@ impl FileDesc {
}
#[cfg(not(any(
target_os = "aix",
target_os = "android",
target_os = "dragonfly",
target_os = "emscripten",
target_os = "freebsd",
target_os = "fuchsia",
@ -350,6 +363,8 @@ impl FileDesc {
target_os = "linux",
target_os = "macos",
target_os = "netbsd",
target_os = "openbsd",
target_os = "watchos",
)))]
pub fn write_vectored_at(&self, bufs: &[IoSlice<'_>], offset: u64) -> io::Result<usize> {
io::default_write_vectored(|b| self.write_at(b, offset), bufs)
@ -387,9 +402,10 @@ impl FileDesc {
// no `syscall` possible in these platform.
#[cfg(any(
all(target_os = "android", target_pointer_width = "32"),
target_os = "ios",
target_os = "tvos",
target_os = "macos",
target_os = "ios", // ios 14.0
target_os = "tvos", // tvos 14.0
target_os = "macos", // macos 11.0
target_os = "watchos", // watchos 7.0
))]
pub fn write_vectored_at(&self, bufs: &[IoSlice<'_>], offset: u64) -> io::Result<usize> {
super::weak::weak!(fn pwritev64(libc::c_int, *const libc::iovec, libc::c_int, off64_t) -> isize);