diff options
Diffstat (limited to 'vendor/rustix/src/io/read_write.rs')
| -rw-r--r-- | vendor/rustix/src/io/read_write.rs | 312 |
1 files changed, 0 insertions, 312 deletions
diff --git a/vendor/rustix/src/io/read_write.rs b/vendor/rustix/src/io/read_write.rs deleted file mode 100644 index 2ed9dd7..0000000 --- a/vendor/rustix/src/io/read_write.rs +++ /dev/null @@ -1,312 +0,0 @@ -//! `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§ion=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§ion=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§ion=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§ion=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§ion=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§ion=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§ion=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§ion=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) -} |