1 use crate::io::{self, IoSlice, IoSliceMut};
2 use crate::mem::ManuallyDrop;
3 use crate::os::unix::io::{AsFd, BorrowedFd, FromRawFd};
4 use crate::sys::fd::FileDesc;
11 pub const fn new() -> Stdin {
16 impl io::Read for Stdin {
17 fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
18 unsafe { ManuallyDrop::new(FileDesc::from_raw_fd(libc::STDIN_FILENO)).read(buf) }
21 fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> io::Result<usize> {
22 unsafe { ManuallyDrop::new(FileDesc::from_raw_fd(libc::STDIN_FILENO)).read_vectored(bufs) }
26 fn is_read_vectored(&self) -> bool {
32 pub const fn new() -> Stdout {
37 impl io::Write for Stdout {
38 fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
39 unsafe { ManuallyDrop::new(FileDesc::from_raw_fd(libc::STDOUT_FILENO)).write(buf) }
42 fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> io::Result<usize> {
44 ManuallyDrop::new(FileDesc::from_raw_fd(libc::STDOUT_FILENO)).write_vectored(bufs)
49 fn is_write_vectored(&self) -> bool {
53 fn flush(&mut self) -> io::Result<()> {
59 pub const fn new() -> Stderr {
64 impl io::Write for Stderr {
65 fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
66 unsafe { ManuallyDrop::new(FileDesc::from_raw_fd(libc::STDERR_FILENO)).write(buf) }
69 fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> io::Result<usize> {
71 ManuallyDrop::new(FileDesc::from_raw_fd(libc::STDERR_FILENO)).write_vectored(bufs)
76 fn is_write_vectored(&self) -> bool {
80 fn flush(&mut self) -> io::Result<()> {
85 pub fn is_ebadf(err: &io::Error) -> bool {
86 err.raw_os_error() == Some(libc::EBADF as i32)
89 pub const STDIN_BUF_SIZE: usize = crate::sys_common::io::DEFAULT_BUF_SIZE;
91 pub fn panic_output() -> Option<impl io::Write> {
95 #[stable(feature = "io_safety", since = "1.63.0")]
96 impl AsFd for io::Stdin {
98 fn as_fd(&self) -> BorrowedFd<'_> {
99 unsafe { BorrowedFd::borrow_raw(libc::STDIN_FILENO) }
103 #[stable(feature = "io_safety", since = "1.63.0")]
104 impl<'a> AsFd for io::StdinLock<'a> {
106 fn as_fd(&self) -> BorrowedFd<'_> {
107 unsafe { BorrowedFd::borrow_raw(libc::STDIN_FILENO) }
111 #[stable(feature = "io_safety", since = "1.63.0")]
112 impl AsFd for io::Stdout {
114 fn as_fd(&self) -> BorrowedFd<'_> {
115 unsafe { BorrowedFd::borrow_raw(libc::STDOUT_FILENO) }
119 #[stable(feature = "io_safety", since = "1.63.0")]
120 impl<'a> AsFd for io::StdoutLock<'a> {
122 fn as_fd(&self) -> BorrowedFd<'_> {
123 unsafe { BorrowedFd::borrow_raw(libc::STDOUT_FILENO) }
127 #[stable(feature = "io_safety", since = "1.63.0")]
128 impl AsFd for io::Stderr {
130 fn as_fd(&self) -> BorrowedFd<'_> {
131 unsafe { BorrowedFd::borrow_raw(libc::STDERR_FILENO) }
135 #[stable(feature = "io_safety", since = "1.63.0")]
136 impl<'a> AsFd for io::StderrLock<'a> {
138 fn as_fd(&self) -> BorrowedFd<'_> {
139 unsafe { BorrowedFd::borrow_raw(libc::STDERR_FILENO) }