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Implement read_buf for WASI stdin

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This commit is contained in:
Thalia Archibald 2025-02-04 19:27:55 -08:00
parent f04bbc60f8
commit d32eeb86b2
1 changed files with 6 additions and 1 deletions
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7
library/std/src/sys/pal/wasi/stdio.rs
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@ -1,7 +1,7 @@
#![forbid(unsafe_op_in_unsafe_fn)]
use super::fd::WasiFd;
use crate::io::{self, IoSlice, IoSliceMut};
use crate::io::{self, BorrowedCursor, IoSlice, IoSliceMut};
use crate::mem::ManuallyDrop;
use crate::os::raw;
use crate::os::wasi::io::{AsRawFd, FromRawFd};
@ -28,6 +28,10 @@ impl io::Read for Stdin {
self.read_vectored(&mut [IoSliceMut::new(data)])
}
fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> io::Result<()> {
ManuallyDrop::new(unsafe { WasiFd::from_raw_fd(self.as_raw_fd()) }).read_buf(buf)
}
fn read_vectored(&mut self, data: &mut [IoSliceMut<'_>]) -> io::Result<usize> {
ManuallyDrop::new(unsafe { WasiFd::from_raw_fd(self.as_raw_fd()) }).read(data)
}
@ -64,6 +68,7 @@ impl io::Write for Stdout {
fn is_write_vectored(&self) -> bool {
true
}
fn flush(&mut self) -> io::Result<()> {
Ok(())
}