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use io;
use sys::cloudabi::abi;
pub struct Stdin(());
pub struct Stdout(());
pub struct Stderr(());
impl Stdin {
pub fn new() -> io::Result<Stdin> {
Ok(Stdin(()))
}
pub fn read(&self, _: &mut [u8]) -> io::Result<usize> {
Ok(0)
}
}
impl Stdout {
pub fn new() -> io::Result<Stdout> {
Ok(Stdout(()))
}
pub fn write(&self, _: &[u8]) -> io::Result<usize> {
Err(io::Error::new(
io::ErrorKind::BrokenPipe,
"Stdout is not connected to any output in this environment",
))
}
pub fn flush(&self) -> io::Result<()> {
Ok(())
}
}
impl Stderr {
pub fn new() -> io::Result<Stderr> {
Ok(Stderr(()))
}
pub fn write(&self, _: &[u8]) -> io::Result<usize> {
Err(io::Error::new(
io::ErrorKind::BrokenPipe,
"Stderr is not connected to any output in this environment",
))
}
pub fn flush(&self) -> io::Result<()> {
Ok(())
}
}
impl io::Write for Stderr {
fn write(&mut self, data: &[u8]) -> io::Result<usize> {
Stderr::write(self, data)
}
fn flush(&mut self) -> io::Result<()> {
Stderr::flush(self)
}
}
pub fn is_ebadf(err: &io::Error) -> bool {
err.raw_os_error() == Some(abi::errno::BADF as i32)
}
pub const STDIN_BUF_SIZE: usize = ::sys_common::io::DEFAULT_BUF_SIZE;