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authorValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
committerValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
commita990de90fe41456a23e58bd087d2f107d321f3a1 (patch)
tree15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/rustix/src/io/read_write.rs
parent3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff)
downloadfparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz
fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip
Deleted vendor folder
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-rw-r--r--vendor/rustix/src/io/read_write.rs312
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diff --git a/vendor/rustix/src/io/read_write.rs b/vendor/rustix/src/io/read_write.rs
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-//! `read` and `write`, optionally positioned, optionally vectored
-
-#![allow(unsafe_code)]
-
-use crate::buffer::split_init;
-use crate::{backend, io};
-use backend::fd::AsFd;
-use core::mem::MaybeUninit;
-
-// Declare `IoSlice` and `IoSliceMut`.
-#[cfg(not(windows))]
-pub use crate::maybe_polyfill::io::{IoSlice, IoSliceMut};
-
-#[cfg(linux_kernel)]
-pub use backend::io::types::ReadWriteFlags;
-
-/// `read(fd, buf)`—Reads from a stream.
-///
-/// # References
-/// - [POSIX]
-/// - [Linux]
-/// - [Apple]
-/// - [FreeBSD]
-/// - [NetBSD]
-/// - [OpenBSD]
-/// - [DragonFly BSD]
-/// - [illumos]
-/// - [glibc]
-///
-/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html
-/// [Linux]: https://man7.org/linux/man-pages/man2/read.2.html
-/// [Apple]: https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man2/read.2.html
-/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=read&sektion=2
-/// [NetBSD]: https://man.netbsd.org/read.2
-/// [OpenBSD]: https://man.openbsd.org/read.2
-/// [DragonFly BSD]: https://man.dragonflybsd.org/?command=read&section=2
-/// [illumos]: https://illumos.org/man/2/read
-/// [glibc]: https://www.gnu.org/software/libc/manual/html_node/I_002fO-Primitives.html#index-reading-from-a-file-descriptor
-#[inline]
-pub fn read<Fd: AsFd>(fd: Fd, buf: &mut [u8]) -> io::Result<usize> {
- unsafe { backend::io::syscalls::read(fd.as_fd(), buf.as_mut_ptr(), buf.len()) }
-}
-
-/// `read(fd, buf)`—Reads from a stream.
-///
-/// This is equivalent to [`read`], except that it can read into uninitialized
-/// memory. It returns the slice that was initialized by this function and the
-/// slice that remains uninitialized.
-#[inline]
-pub fn read_uninit<Fd: AsFd>(
- fd: Fd,
- buf: &mut [MaybeUninit<u8>],
-) -> io::Result<(&mut [u8], &mut [MaybeUninit<u8>])> {
- // Get number of initialized bytes.
- let length =
- unsafe { backend::io::syscalls::read(fd.as_fd(), buf.as_mut_ptr() as *mut u8, buf.len()) };
-
- // Split into the initialized and uninitialized portions.
- Ok(unsafe { split_init(buf, length?) })
-}
-
-/// `write(fd, buf)`—Writes to a stream.
-///
-/// # References
-/// - [POSIX]
-/// - [Linux]
-/// - [Apple]
-/// - [FreeBSD]
-/// - [NetBSD]
-/// - [OpenBSD]
-/// - [DragonFly BSD]
-/// - [illumos]
-/// - [glibc]
-///
-/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html
-/// [Linux]: https://man7.org/linux/man-pages/man2/write.2.html
-/// [Apple]: https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man2/write.2.html
-/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=write&sektion=2
-/// [NetBSD]: https://man.netbsd.org/write.2
-/// [OpenBSD]: https://man.openbsd.org/write.2
-/// [DragonFly BSD]: https://man.dragonflybsd.org/?command=write&section=2
-/// [illumos]: https://illumos.org/man/2/write
-/// [glibc]: https://www.gnu.org/software/libc/manual/html_node/I_002fO-Primitives.html#index-writing-to-a-file-descriptor
-#[inline]
-pub fn write<Fd: AsFd>(fd: Fd, buf: &[u8]) -> io::Result<usize> {
- backend::io::syscalls::write(fd.as_fd(), buf)
-}
-
-/// `pread(fd, buf, offset)`—Reads from a file at a given position.
-///
-/// # References
-/// - [POSIX]
-/// - [Linux]
-/// - [Apple]
-/// - [FreeBSD]
-/// - [NetBSD]
-/// - [OpenBSD]
-/// - [DragonFly BSD]
-/// - [illumos]
-///
-/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html
-/// [Linux]: https://man7.org/linux/man-pages/man2/pread.2.html
-/// [Apple]: https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man2/pread.2.html
-/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=pread&sektion=2
-/// [NetBSD]: https://man.netbsd.org/pread.2
-/// [OpenBSD]: https://man.openbsd.org/pread.2
-/// [DragonFly BSD]: https://man.dragonflybsd.org/?command=pread&section=2
-/// [illumos]: https://illumos.org/man/2/pread
-#[inline]
-pub fn pread<Fd: AsFd>(fd: Fd, buf: &mut [u8], offset: u64) -> io::Result<usize> {
- unsafe { backend::io::syscalls::pread(fd.as_fd(), buf.as_mut_ptr(), buf.len(), offset) }
-}
-
-/// `pread(fd, buf, offset)`—Reads from a file at a given position.
-///
-/// This is equivalent to [`pread`], except that it can read into uninitialized
-/// memory. It returns the slice that was initialized by this function and the
-/// slice that remains uninitialized.
-#[inline]
-pub fn pread_uninit<Fd: AsFd>(
- fd: Fd,
- buf: &mut [MaybeUninit<u8>],
- offset: u64,
-) -> io::Result<(&mut [u8], &mut [MaybeUninit<u8>])> {
- let length = unsafe {
- backend::io::syscalls::pread(fd.as_fd(), buf.as_mut_ptr() as *mut u8, buf.len(), offset)
- };
- Ok(unsafe { split_init(buf, length?) })
-}
-
-/// `pwrite(fd, bufs)`—Writes to a file at a given position.
-///
-/// Contrary to POSIX, on many popular platforms including Linux and FreeBSD,
-/// if the file is opened in append mode, this ignores the offset appends the
-/// data to the end of the file.
-///
-/// # References
-/// - [POSIX]
-/// - [Linux]
-/// - [Apple]
-/// - [FreeBSD]
-/// - [NetBSD]
-/// - [OpenBSD]
-/// - [DragonFly BSD]
-/// - [illumos]
-///
-/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html
-/// [Linux]: https://man7.org/linux/man-pages/man2/pwrite.2.html
-/// [Apple]: https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man2/pwrite.2.html
-/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=pwrite&sektion=2
-/// [NetBSD]: https://man.netbsd.org/pwrite.2
-/// [OpenBSD]: https://man.openbsd.org/pwrite.2
-/// [DragonFly BSD]: https://man.dragonflybsd.org/?command=pwrite&section=2
-/// [illumos]: https://illumos.org/man/2/pwrite
-#[inline]
-pub fn pwrite<Fd: AsFd>(fd: Fd, buf: &[u8], offset: u64) -> io::Result<usize> {
- backend::io::syscalls::pwrite(fd.as_fd(), buf, offset)
-}
-
-/// `readv(fd, bufs)`—Reads from a stream into multiple buffers.
-///
-/// # References
-/// - [POSIX]
-/// - [Linux]
-/// - [Apple]
-/// - [FreeBSD]
-/// - [NetBSD]
-/// - [OpenBSD]
-/// - [DragonFly BSD]
-/// - [illumos]
-///
-/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/readv.html
-/// [Linux]: https://man7.org/linux/man-pages/man2/readv.2.html
-/// [Apple]: https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man2/readv.2.html
-/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=readv&sektion=2
-/// [NetBSD]: https://man.netbsd.org/readv.2
-/// [OpenBSD]: https://man.openbsd.org/readv.2
-/// [DragonFly BSD]: https://man.dragonflybsd.org/?command=readv&section=2
-/// [illumos]: https://illumos.org/man/2/readv
-#[cfg(not(target_os = "espidf"))]
-#[inline]
-pub fn readv<Fd: AsFd>(fd: Fd, bufs: &mut [IoSliceMut<'_>]) -> io::Result<usize> {
- backend::io::syscalls::readv(fd.as_fd(), bufs)
-}
-
-/// `writev(fd, bufs)`—Writes to a stream from multiple buffers.
-///
-/// # References
-/// - [POSIX]
-/// - [Linux]
-/// - [Apple]
-/// - [FreeBSD]
-/// - [NetBSD]
-/// - [OpenBSD]
-/// - [DragonFly BSD]
-/// - [illumos]
-///
-/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/writev.html
-/// [Linux]: https://man7.org/linux/man-pages/man2/writev.2.html
-/// [Apple]: https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man2/writev.2.html
-/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=writev&sektion=2
-/// [NetBSD]: https://man.netbsd.org/writev.2
-/// [OpenBSD]: https://man.openbsd.org/writev.2
-/// [DragonFly BSD]: https://man.dragonflybsd.org/?command=writev&section=2
-/// [illumos]: https://illumos.org/man/2/writev
-#[cfg(not(target_os = "espidf"))]
-#[inline]
-pub fn writev<Fd: AsFd>(fd: Fd, bufs: &[IoSlice<'_>]) -> io::Result<usize> {
- backend::io::syscalls::writev(fd.as_fd(), bufs)
-}
-
-/// `preadv(fd, bufs, offset)`—Reads from a file at a given position into
-/// multiple buffers.
-///
-/// # References
-/// - [Linux]
-/// - [FreeBSD]
-/// - [NetBSD]
-/// - [OpenBSD]
-/// - [DragonFly BSD]
-/// - [illumos]
-///
-/// [Linux]: https://man7.org/linux/man-pages/man2/preadv.2.html
-/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=preadv&sektion=2
-/// [NetBSD]: https://man.netbsd.org/preadv.2
-/// [OpenBSD]: https://man.openbsd.org/preadv.2
-/// [DragonFly BSD]: https://man.dragonflybsd.org/?command=preadv&section=2
-/// [illumos]: https://illumos.org/man/2/preadv
-#[cfg(not(any(
- target_os = "espidf",
- target_os = "haiku",
- target_os = "nto",
- target_os = "redox",
- target_os = "solaris",
- target_os = "vita"
-)))]
-#[inline]
-pub fn preadv<Fd: AsFd>(fd: Fd, bufs: &mut [IoSliceMut<'_>], offset: u64) -> io::Result<usize> {
- backend::io::syscalls::preadv(fd.as_fd(), bufs, offset)
-}
-
-/// `pwritev(fd, bufs, offset)`—Writes to a file at a given position from
-/// multiple buffers.
-///
-/// Contrary to POSIX, on many popular platforms including Linux and FreeBSD,
-/// if the file is opened in append mode, this ignores the offset appends the
-/// data to the end of the file.
-///
-/// # References
-/// - [Linux]
-/// - [FreeBSD]
-/// - [NetBSD]
-/// - [OpenBSD]
-/// - [DragonFly BSD]
-/// - [illumos]
-///
-/// [Linux]: https://man7.org/linux/man-pages/man2/pwritev.2.html
-/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=pwritev&sektion=2
-/// [NetBSD]: https://man.netbsd.org/pwritev.2
-/// [OpenBSD]: https://man.openbsd.org/pwritev.2
-/// [DragonFly BSD]: https://man.dragonflybsd.org/?command=pwritev&section=2
-/// [illumos]: https://illumos.org/man/2/pwritev
-#[cfg(not(any(
- target_os = "espidf",
- target_os = "haiku",
- target_os = "nto",
- target_os = "redox",
- target_os = "solaris",
- target_os = "vita"
-)))]
-#[inline]
-pub fn pwritev<Fd: AsFd>(fd: Fd, bufs: &[IoSlice<'_>], offset: u64) -> io::Result<usize> {
- backend::io::syscalls::pwritev(fd.as_fd(), bufs, offset)
-}
-
-/// `preadv2(fd, bufs, offset, flags)`—Reads data, with several options.
-///
-/// An `offset` of `u64::MAX` means to use and update the current file offset.
-///
-/// # References
-/// - [Linux]
-///
-/// [Linux]: https://man7.org/linux/man-pages/man2/preadv2.2.html
-#[cfg(linux_kernel)]
-#[inline]
-pub fn preadv2<Fd: AsFd>(
- fd: Fd,
- bufs: &mut [IoSliceMut<'_>],
- offset: u64,
- flags: ReadWriteFlags,
-) -> io::Result<usize> {
- backend::io::syscalls::preadv2(fd.as_fd(), bufs, offset, flags)
-}
-
-/// `pwritev2(fd, bufs, offset, flags)`—Writes data, with several options.
-///
-/// An `offset` of `u64::MAX` means to use and update the current file offset.
-///
-/// # References
-/// - [Linux]
-///
-/// [Linux]: https://man7.org/linux/man-pages/man2/pwritev2.2.html
-#[cfg(linux_kernel)]
-#[inline]
-pub fn pwritev2<Fd: AsFd>(
- fd: Fd,
- bufs: &[IoSlice<'_>],
- offset: u64,
- flags: ReadWriteFlags,
-) -> io::Result<usize> {
- backend::io::syscalls::pwritev2(fd.as_fd(), bufs, offset, flags)
-}