diff options
Diffstat (limited to 'library/std/src/sys/wasi/stdio.rs')
| -rw-r--r-- | library/std/src/sys/wasi/stdio.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/library/std/src/sys/wasi/stdio.rs b/library/std/src/sys/wasi/stdio.rs index d2081771b6e..bf045c7841f 100644 --- a/library/std/src/sys/wasi/stdio.rs +++ b/library/std/src/sys/wasi/stdio.rs @@ -30,6 +30,15 @@ impl AsFd for Stdin { } } +#[stable(feature = "io_safety", since = "1.63.0")] +impl<'a> AsFd for io::StdinLock<'a> { + #[inline] + fn as_fd(&self) -> BorrowedFd<'_> { + // SAFETY: user code should not close stdin out from under the standard library + unsafe { BorrowedFd::borrow_raw(0) } + } +} + impl io::Read for Stdin { fn read(&mut self, data: &mut [u8]) -> io::Result<usize> { self.read_vectored(&mut [IoSliceMut::new(data)]) @@ -65,6 +74,15 @@ impl AsFd for Stdout { } } +#[stable(feature = "io_safety", since = "1.63.0")] +impl<'a> AsFd for io::StdoutLock<'a> { + #[inline] + fn as_fd(&self) -> BorrowedFd<'_> { + // SAFETY: user code should not close stdout out from under the standard library + unsafe { BorrowedFd::borrow_raw(1) } + } +} + impl io::Write for Stdout { fn write(&mut self, data: &[u8]) -> io::Result<usize> { self.write_vectored(&[IoSlice::new(data)]) @@ -103,6 +121,15 @@ impl AsFd for Stderr { } } +#[stable(feature = "io_safety", since = "1.63.0")] +impl<'a> AsFd for io::StderrLock<'a> { + #[inline] + fn as_fd(&self) -> BorrowedFd<'_> { + // SAFETY: user code should not close stderr out from under the standard library + unsafe { BorrowedFd::borrow_raw(2) } + } +} + impl io::Write for Stderr { fn write(&mut self, data: &[u8]) -> io::Result<usize> { self.write_vectored(&[IoSlice::new(data)]) |