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#![unstable(reason = "not public", issue = "none", feature = "fd")]
use crate::io::{self, Read};
use crate::os::hermit::io::{FromRawFd, OwnedFd, RawFd};
use crate::sys::cvt;
use crate::sys::hermit::abi;
use crate::sys::unsupported;
use crate::sys_common::{AsInner, FromInner, IntoInner};
use crate::os::hermit::io::*;
#[derive(Debug)]
pub struct FileDesc {
fd: OwnedFd,
}
impl FileDesc {
pub fn read(&self, buf: &mut [u8]) -> io::Result<usize> {
let result = cvt(unsafe { abi::read(self.fd.as_raw_fd(), buf.as_mut_ptr(), buf.len()) })?;
Ok(result as usize)
}
pub fn read_to_end(&self, buf: &mut Vec<u8>) -> io::Result<usize> {
let mut me = self;
(&mut me).read_to_end(buf)
}
pub fn write(&self, buf: &[u8]) -> io::Result<usize> {
let result = cvt(unsafe { abi::write(self.fd.as_raw_fd(), buf.as_ptr(), buf.len()) })?;
Ok(result as usize)
}
pub fn duplicate(&self) -> io::Result<FileDesc> {
self.duplicate_path(&[])
}
pub fn duplicate_path(&self, _path: &[u8]) -> io::Result<FileDesc> {
unsupported()
}
pub fn nonblocking(&self) -> io::Result<bool> {
Ok(false)
}
pub fn set_cloexec(&self) -> io::Result<()> {
unsupported()
}
pub fn set_nonblocking(&self, _nonblocking: bool) -> io::Result<()> {
unsupported()
}
}
impl<'a> Read for &'a FileDesc {
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
(**self).read(buf)
}
}
impl IntoInner<OwnedFd> for FileDesc {
fn into_inner(self) -> OwnedFd {
self.fd
}
}
impl FromInner<OwnedFd> for FileDesc {
fn from_inner(owned_fd: OwnedFd) -> Self {
Self { fd: owned_fd }
}
}
impl FromRawFd for FileDesc {
unsafe fn from_raw_fd(raw_fd: RawFd) -> Self {
Self { fd: FromRawFd::from_raw_fd(raw_fd) }
}
}
impl AsInner<OwnedFd> for FileDesc {
fn as_inner(&self) -> &OwnedFd {
&self.fd
}
}
impl AsFd for FileDesc {
fn as_fd(&self) -> BorrowedFd<'_> {
self.fd.as_fd()
}
}
impl AsRawFd for FileDesc {
#[inline]
fn as_raw_fd(&self) -> RawFd {
self.fd.as_raw_fd()
}
}
impl IntoRawFd for FileDesc {
fn into_raw_fd(self) -> RawFd {
self.fd.into_raw_fd()
}
}
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