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Unix: Support more platforms with preadv and pwritev #122880

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Merged
merged 1 commit into from
Mar 27, 2024
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Unix: Support more platforms with preadv and pwritev #122880

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28 changes: 22 additions & 6 deletions library/std/src/sys/pal/unix/fd.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -167,13 +167,16 @@ impl FileDesc {
}

#[cfg(any(
target_os = "aix",
target_os = "dragonfly", // DragonFly 1.5
target_os = "emscripten",
target_os = "freebsd",
target_os = "fuchsia",
target_os = "hurd",
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 {
Expand All @@ -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",
Expand All @@ -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)
Expand Down Expand Up @@ -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);
Expand Down Expand Up @@ -318,13 +326,16 @@ impl FileDesc {
}

#[cfg(any(
target_os = "aix",
target_os = "dragonfly", // DragonFly 1.5
target_os = "emscripten",
target_os = "freebsd",
target_os = "fuchsia",
target_os = "hurd",
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 {
Expand All @@ -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",
Expand All @@ -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)
Expand Down Expand Up @@ -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);
Expand Down