bjoernager/rust
bjoernager/rust
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Implement read_buf for a few more types

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Implement read_buf for TcpStream, Stdin, StdinLock, ChildStdout,
ChildStderr (and internally for AnonPipe, Handle, Socket), so
that it skips buffer initialization.

The other provided methods like read_to_string and read_to_end are
implemented in terms of read_buf and so benefit from the optimization
as well.

This commit also implements read_vectored and is_read_vectored where
applicable.
This commit is contained in:
Tomasz Miąsko 2023-02-21 00:00:00 +00:00
parent 0fbfc3e769
commit defa245624
21 changed files with 250 additions and 31 deletions
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10
library/std/src/process.rs
View file

@ -110,7 +110,7 @@ use crate::convert::Infallible;
use crate::ffi::OsStr;
use crate::fmt;
use crate::fs;
use crate::io::{self, IoSlice, IoSliceMut};
use crate::io::{self, BorrowedCursor, IoSlice, IoSliceMut};
use crate::num::NonZeroI32;
use crate::path::Path;
use crate::str;
@ -354,6 +354,10 @@ impl Read for ChildStdout {
self.inner.read(buf)
}
fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> io::Result<()> {
self.inner.read_buf(buf)
}
fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> io::Result<usize> {
self.inner.read_vectored(bufs)
}
@ -419,6 +423,10 @@ impl Read for ChildStderr {
self.inner.read(buf)
}
fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> io::Result<()> {
self.inner.read_buf(buf)
}
fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> io::Result<usize> {
self.inner.read_vectored(bufs)
}