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9081929d45f12d3f56d43b1d6db7519981580fc9
rust/src/libstd/sys/windows/io.rs

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Fix rebase fail
2019-02-27 16:15:56 +09:00
use crate::marker::PhantomData;
use crate::slice;
use crate::sys::c;
Add vectored read and write support This functionality has lived for a while in the tokio ecosystem, where it can improve performance by minimizing copies.
2019-02-08 20:42:34 +01:00
#[repr(transparent)]
Stabilized vectored IO 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
2019-04-27 08:34:08 -07:00
pub struct IoSlice<'a> {
Add vectored read and write support This functionality has lived for a while in the tokio ecosystem, where it can improve performance by minimizing copies.
2019-02-08 20:42:34 +01:00
vec: c::WSABUF,
_p: PhantomData<&'a [u8]>,
}
Stabilized vectored IO 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
2019-04-27 08:34:08 -07:00
impl<'a> IoSlice<'a> {
Add vectored read and write support This functionality has lived for a while in the tokio ecosystem, where it can improve performance by minimizing copies.
2019-02-08 20:42:34 +01:00
#[inline]
Stabilized vectored IO 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
2019-04-27 08:34:08 -07:00
pub fn new(buf: &'a [u8]) -> IoSlice<'a> {
Add vectored read and write support This functionality has lived for a while in the tokio ecosystem, where it can improve performance by minimizing copies.
2019-02-08 20:42:34 +01:00
assert!(buf.len() <= c::ULONG::max_value() as usize);
Stabilized vectored IO 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
2019-04-27 08:34:08 -07:00
IoSlice {
Add vectored read and write support This functionality has lived for a while in the tokio ecosystem, where it can improve performance by minimizing copies.
2019-02-08 20:42:34 +01:00
vec: c::WSABUF {
len: buf.len() as c::ULONG,
buf: buf.as_ptr() as *mut u8 as *mut c::CHAR,
},
_p: PhantomData,
}
}
Add {IoSlice, IoSliceMut}::advance
2019-07-25 22:30:52 +02:00
#[inline]
pub fn advance(&mut self, n: usize) {
if (self.vec.len as usize) < n {
panic!("advancing IoSlice beyond its length");
}
unsafe {
self.vec.len -= n as c::ULONG;
self.vec.buf = self.vec.buf.add(n);
}
}
Add vectored read and write support This functionality has lived for a while in the tokio ecosystem, where it can improve performance by minimizing copies.
2019-02-08 20:42:34 +01:00
#[inline]
impl Deref/DerefMut for IoVec types Returning &'a mut [u8] was unsound, and we may as well just have them directly deref to their slices to make it easier to work with them.
2019-02-11 19:31:37 -08:00
pub fn as_slice(&self) -> &[u8] {
Add vectored read and write support This functionality has lived for a while in the tokio ecosystem, where it can improve performance by minimizing copies.
2019-02-08 20:42:34 +01:00
unsafe {
slice::from_raw_parts(self.vec.buf as *mut u8, self.vec.len as usize)
}
}
}
add repr(transparent) to IoSliceMut where missing
2019-07-26 18:56:47 +03:00
#[repr(transparent)]
Stabilized vectored IO 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
2019-04-27 08:34:08 -07:00
pub struct IoSliceMut<'a> {
Add vectored read and write support This functionality has lived for a while in the tokio ecosystem, where it can improve performance by minimizing copies.
2019-02-08 20:42:34 +01:00
vec: c::WSABUF,
_p: PhantomData<&'a mut [u8]>,
}
Stabilized vectored IO 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
2019-04-27 08:34:08 -07:00
impl<'a> IoSliceMut<'a> {
Add vectored read and write support This functionality has lived for a while in the tokio ecosystem, where it can improve performance by minimizing copies.
2019-02-08 20:42:34 +01:00
#[inline]
Stabilized vectored IO 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
2019-04-27 08:34:08 -07:00
pub fn new(buf: &'a mut [u8]) -> IoSliceMut<'a> {
Add vectored read and write support This functionality has lived for a while in the tokio ecosystem, where it can improve performance by minimizing copies.
2019-02-08 20:42:34 +01:00
assert!(buf.len() <= c::ULONG::max_value() as usize);
Stabilized vectored IO 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
2019-04-27 08:34:08 -07:00
IoSliceMut {
Add vectored read and write support This functionality has lived for a while in the tokio ecosystem, where it can improve performance by minimizing copies.
2019-02-08 20:42:34 +01:00
vec: c::WSABUF {
len: buf.len() as c::ULONG,
buf: buf.as_mut_ptr() as *mut c::CHAR,
},
_p: PhantomData,
}
}
Add {IoSlice, IoSliceMut}::advance
2019-07-25 22:30:52 +02:00
#[inline]
pub fn advance(&mut self, n: usize) {
if (self.vec.len as usize) < n {
panic!("advancing IoSliceMut beyond its length");
}
unsafe {
self.vec.len -= n as c::ULONG;
self.vec.buf = self.vec.buf.add(n);
}
}
Add vectored read and write support This functionality has lived for a while in the tokio ecosystem, where it can improve performance by minimizing copies.
2019-02-08 20:42:34 +01:00
#[inline]
impl Deref/DerefMut for IoVec types Returning &'a mut [u8] was unsound, and we may as well just have them directly deref to their slices to make it easier to work with them.
2019-02-11 19:31:37 -08:00
pub fn as_slice(&self) -> &[u8] {
Add vectored read and write support This functionality has lived for a while in the tokio ecosystem, where it can improve performance by minimizing copies.
2019-02-08 20:42:34 +01:00
unsafe {
slice::from_raw_parts(self.vec.buf as *mut u8, self.vec.len as usize)
}
}
#[inline]
impl Deref/DerefMut for IoVec types Returning &'a mut [u8] was unsound, and we may as well just have them directly deref to their slices to make it easier to work with them.
2019-02-11 19:31:37 -08:00
pub fn as_mut_slice(&mut self) -> &mut [u8] {
Add vectored read and write support This functionality has lived for a while in the tokio ecosystem, where it can improve performance by minimizing copies.
2019-02-08 20:42:34 +01:00
unsafe {
slice::from_raw_parts_mut(self.vec.buf as *mut u8, self.vec.len as usize)
}
}
}
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