bd177f3ea3
This renames `std::io::IoVec` to `std::io::IoSlice` and `std::io::IoVecMut` to `std::io::IoSliceMut`, and stabilizes `std::io::IoSlice`, `std::io::IoSliceMut`, `std::io::Read::read_vectored`, and `std::io::Write::write_vectored`. Closes #58452
63 lines
1.3 KiB
Rust
63 lines
1.3 KiB
Rust
use crate::marker::PhantomData;
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use crate::slice;
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use libc::{iovec, c_void};
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#[repr(transparent)]
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pub struct IoSlice<'a> {
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vec: iovec,
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_p: PhantomData<&'a [u8]>,
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}
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impl<'a> IoSlice<'a> {
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#[inline]
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pub fn new(buf: &'a [u8]) -> IoSlice<'a> {
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IoSlice {
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vec: iovec {
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iov_base: buf.as_ptr() as *mut u8 as *mut c_void,
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iov_len: buf.len()
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},
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_p: PhantomData,
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}
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}
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#[inline]
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pub fn as_slice(&self) -> &[u8] {
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unsafe {
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slice::from_raw_parts(self.vec.iov_base as *mut u8, self.vec.iov_len)
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}
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}
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}
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pub struct IoSliceMut<'a> {
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vec: iovec,
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_p: PhantomData<&'a mut [u8]>,
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}
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impl<'a> IoSliceMut<'a> {
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#[inline]
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pub fn new(buf: &'a mut [u8]) -> IoSliceMut<'a> {
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IoSliceMut {
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vec: iovec {
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iov_base: buf.as_mut_ptr() as *mut c_void,
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iov_len: buf.len()
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},
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_p: PhantomData,
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}
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}
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#[inline]
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pub fn as_slice(&self) -> &[u8] {
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unsafe {
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slice::from_raw_parts(self.vec.iov_base as *mut u8, self.vec.iov_len)
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}
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}
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#[inline]
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pub fn as_mut_slice(&mut self) -> &mut [u8] {
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unsafe {
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slice::from_raw_parts_mut(self.vec.iov_base as *mut u8, self.vec.iov_len)
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}
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}
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}
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