| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License.. |
| |
| use crate::io::{self, IoSlice, IoSliceMut}; |
| use crate::mem::ManuallyDrop; |
| use crate::os::unix::io::{AsFd, BorrowedFd, FromRawFd}; |
| use crate::sys::fd::FileDesc; |
| use sgx_libc as libc; |
| |
| pub struct Stdin(()); |
| pub struct Stdout(()); |
| pub struct Stderr(()); |
| |
| impl Stdin { |
| pub const fn new() -> Stdin { |
| Stdin(()) |
| } |
| } |
| |
| impl io::Read for Stdin { |
| fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> { |
| unsafe { ManuallyDrop::new(FileDesc::from_raw_fd(libc::STDIN_FILENO)).read(buf) } |
| } |
| |
| fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> io::Result<usize> { |
| unsafe { ManuallyDrop::new(FileDesc::from_raw_fd(libc::STDIN_FILENO)).read_vectored(bufs) } |
| } |
| |
| #[inline] |
| fn is_read_vectored(&self) -> bool { |
| true |
| } |
| } |
| |
| impl Stdout { |
| pub const fn new() -> Stdout { |
| Stdout(()) |
| } |
| } |
| |
| impl io::Write for Stdout { |
| fn write(&mut self, buf: &[u8]) -> io::Result<usize> { |
| unsafe { ManuallyDrop::new(FileDesc::from_raw_fd(libc::STDOUT_FILENO)).write(buf) } |
| } |
| |
| fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> io::Result<usize> { |
| unsafe { |
| ManuallyDrop::new(FileDesc::from_raw_fd(libc::STDOUT_FILENO)).write_vectored(bufs) |
| } |
| } |
| |
| #[inline] |
| fn is_write_vectored(&self) -> bool { |
| true |
| } |
| |
| fn flush(&mut self) -> io::Result<()> { |
| Ok(()) |
| } |
| } |
| |
| impl Stderr { |
| pub const fn new() -> Stderr { |
| Stderr(()) |
| } |
| } |
| |
| impl io::Write for Stderr { |
| fn write(&mut self, buf: &[u8]) -> io::Result<usize> { |
| unsafe { ManuallyDrop::new(FileDesc::from_raw_fd(libc::STDERR_FILENO)).write(buf) } |
| } |
| |
| fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> io::Result<usize> { |
| unsafe { |
| ManuallyDrop::new(FileDesc::from_raw_fd(libc::STDERR_FILENO)).write_vectored(bufs) |
| } |
| } |
| |
| #[inline] |
| fn is_write_vectored(&self) -> bool { |
| true |
| } |
| |
| fn flush(&mut self) -> io::Result<()> { |
| Ok(()) |
| } |
| } |
| |
| pub fn is_ebadf(err: &io::Error) -> bool { |
| err.raw_os_error() == Some(libc::EBADF as i32) |
| } |
| |
| pub const STDIN_BUF_SIZE: usize = crate::sys_common::io::DEFAULT_BUF_SIZE; |
| |
| pub fn panic_output() -> Option<impl io::Write> { |
| Some(Stderr::new()) |
| } |
| |
| impl AsFd for io::Stdin { |
| #[inline] |
| fn as_fd(&self) -> BorrowedFd<'_> { |
| unsafe { BorrowedFd::borrow_raw_fd(libc::STDIN_FILENO) } |
| } |
| } |
| |
| impl<'a> AsFd for io::StdinLock<'a> { |
| #[inline] |
| fn as_fd(&self) -> BorrowedFd<'_> { |
| unsafe { BorrowedFd::borrow_raw_fd(libc::STDIN_FILENO) } |
| } |
| } |
| |
| impl AsFd for io::Stdout { |
| #[inline] |
| fn as_fd(&self) -> BorrowedFd<'_> { |
| unsafe { BorrowedFd::borrow_raw_fd(libc::STDOUT_FILENO) } |
| } |
| } |
| |
| impl<'a> AsFd for io::StdoutLock<'a> { |
| #[inline] |
| fn as_fd(&self) -> BorrowedFd<'_> { |
| unsafe { BorrowedFd::borrow_raw_fd(libc::STDOUT_FILENO) } |
| } |
| } |
| |
| impl AsFd for io::Stderr { |
| #[inline] |
| fn as_fd(&self) -> BorrowedFd<'_> { |
| unsafe { BorrowedFd::borrow_raw_fd(libc::STDERR_FILENO) } |
| } |
| } |
| |
| impl<'a> AsFd for io::StderrLock<'a> { |
| #[inline] |
| fn as_fd(&self) -> BorrowedFd<'_> { |
| unsafe { BorrowedFd::borrow_raw_fd(libc::STDERR_FILENO) } |
| } |
| } |