Struct FileDesc 

pub struct FileDesc(OwnedFd);

🔬This is a nightly-only experimental API. (fd)

Tuple Fields

0: OwnedFd

🔬This is a nightly-only experimental API. (fd)

Implementations

impl FileDesc

pub fn try_clone(&self) -> Result<Self>

🔬This is a nightly-only experimental API. (fd)

pub fn read(&self, buf: &mut [u8]) -> Result<usize>

🔬This is a nightly-only experimental API. (fd)

pub fn read_vectored(&self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize>

🔬This is a nightly-only experimental API. (fd)

Available on neither ESP-IDF nor Horizon nor Play Station Vita nor NuttX.

pub fn is_read_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (fd)

pub fn read_to_end(&self, buf: &mut Vec<u8>) -> Result<usize>

🔬This is a nightly-only experimental API. (fd)

pub fn read_at(&self, buf: &mut [u8], offset: u64) -> Result<usize>

🔬This is a nightly-only experimental API. (fd)

pub fn read_buf(&self, cursor: BorrowedCursor<'_>) -> Result<()>

🔬This is a nightly-only experimental API. (fd)

pub fn read_buf_at(&self, cursor: BorrowedCursor<'_>, offset: u64) -> Result<()>

🔬This is a nightly-only experimental API. (fd)

pub fn read_vectored_at( &self, bufs: &mut [IoSliceMut<'_>], offset: u64, ) -> Result<usize>

🔬This is a nightly-only experimental API. (fd)

Available on AIX or DragonFly BSD or Emscripten or FreeBSD or Fuchsia or GNU/Hurd or illumos or Linux or NetBSD or OpenBSD only.

pub fn write(&self, buf: &[u8]) -> Result<usize>

🔬This is a nightly-only experimental API. (fd)

pub fn write_vectored(&self, bufs: &[IoSlice<'_>]) -> Result<usize>

🔬This is a nightly-only experimental API. (fd)

Available on neither ESP-IDF nor Horizon nor Play Station Vita nor NuttX.

pub fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (fd)

pub fn write_at(&self, buf: &[u8], offset: u64) -> Result<usize>

🔬This is a nightly-only experimental API. (fd)

pub fn write_vectored_at( &self, bufs: &[IoSlice<'_>], offset: u64, ) -> Result<usize>

🔬This is a nightly-only experimental API. (fd)

Available on AIX or DragonFly BSD or Emscripten or FreeBSD or Fuchsia or GNU/Hurd or illumos or Linux or NetBSD or OpenBSD only.

pub fn set_cloexec(&self) -> Result<()>

🔬This is a nightly-only experimental API. (fd)

Available on Newlib and neither ESP-IDF nor Horizon nor Play Station Vita, or Solaris, or illumos, or Emscripten, or Fuchsia, or L4Re, or Linux, or Cygwin, or Haiku, or Redox OS, or VxWorks, or QNX Neutrino, or WASI only.

pub fn set_nonblocking(&self, nonblocking: bool) -> Result<()>

🔬This is a nightly-only experimental API. (fd)

Available on Linux only.

pub fn duplicate(&self) -> Result<FileDesc>

🔬This is a nightly-only experimental API. (fd)

Trait Implementations

impl AsFd for FileDesc

fn as_fd(&self) -> BorrowedFd<'_>

Available on Unix or Hermit or Trusty or WASI or Motor OS only.

Borrows the file descriptor.

impl AsInner<FileDesc> for ChildStderr

fn as_inner(&self) -> &FileDesc

impl AsInner<FileDesc> for ChildStdin

fn as_inner(&self) -> &FileDesc

impl AsInner<FileDesc> for ChildStdout

fn as_inner(&self) -> &FileDesc

impl AsInner<FileDesc> for File

fn as_inner(&self) -> &FileDesc

impl AsInner<FileDesc> for PidFd

Available on Linux only.

fn as_inner(&self) -> &FileDesc

impl AsInner<FileDesc> for Socket

fn as_inner(&self) -> &FileDesc

impl AsInner<OwnedFd> for FileDesc

fn as_inner(&self) -> &OwnedFd

impl AsInnerMut<FileDesc> for File

fn as_inner_mut(&mut self) -> &mut FileDesc

impl AsRawFd for FileDesc

fn as_raw_fd(&self) -> RawFd

Available on Unix or Hermit or Trusty or WASI or Motor OS only.

Extracts the raw file descriptor.

impl Debug for FileDesc

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<FileDesc> for Stdio

fn from(fd: FileDesc) -> Stdio

Converts to this type from the input type.

impl FromInner<FileDesc> for ChildStderr

fn from_inner(pipe: FileDesc) -> ChildStderr

impl FromInner<FileDesc> for ChildStdin

fn from_inner(pipe: FileDesc) -> ChildStdin

impl FromInner<FileDesc> for ChildStdout

fn from_inner(pipe: FileDesc) -> ChildStdout

impl FromInner<FileDesc> for File

fn from_inner(file_desc: FileDesc) -> Self

impl FromInner<FileDesc> for PidFd

Available on Linux only.

fn from_inner(inner: FileDesc) -> Self

impl FromInner<FileDesc> for PipeReader

fn from_inner(inner: FileDesc) -> Self

impl FromInner<FileDesc> for PipeWriter

fn from_inner(inner: FileDesc) -> Self

impl FromInner<FileDesc> for Socket

fn from_inner(file_desc: FileDesc) -> Self

impl FromInner<OwnedFd> for FileDesc

fn from_inner(owned_fd: OwnedFd) -> Self

impl FromRawFd for FileDesc

unsafe fn from_raw_fd(raw_fd: RawFd) -> Self

Available on Unix or Hermit or Trusty or WASI or Motor OS only.

Constructs a new instance of Self from the given raw file descriptor.

impl IntoInner<FileDesc> for ChildStderr

fn into_inner(self) -> FileDesc

impl IntoInner<FileDesc> for ChildStdin

fn into_inner(self) -> FileDesc

impl IntoInner<FileDesc> for ChildStdout

fn into_inner(self) -> FileDesc

impl IntoInner<FileDesc> for File

fn into_inner(self) -> FileDesc

impl IntoInner<FileDesc> for PidFd

Available on Linux only.

fn into_inner(self) -> FileDesc

impl IntoInner<FileDesc> for PipeReader

fn into_inner(self) -> FileDesc

impl IntoInner<FileDesc> for PipeWriter

fn into_inner(self) -> FileDesc

impl IntoInner<FileDesc> for Socket

fn into_inner(self) -> FileDesc

impl IntoInner<OwnedFd> for FileDesc

fn into_inner(self) -> OwnedFd

impl IntoRawFd for FileDesc

fn into_raw_fd(self) -> RawFd

Available on Unix or Hermit or Trusty or WASI or Motor OS only.

Consumes this object, returning the raw underlying file descriptor.

impl<'a> Read for &'a FileDesc

fn read(&mut self, buf: &mut [u8]) -> Result<usize>

Pull some bytes from this source into the specified buffer, returning how many bytes were read.

fn read_buf(&mut self, cursor: BorrowedCursor<'_>) -> Result<()>

🔬This is a nightly-only experimental API. (read_buf #78485)

Pull some bytes from this source into the specified buffer.

fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize>

Like read, except that it reads into a slice of buffers.

fn is_read_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector #69941)

Determines if this Reader has an efficient read_vectored implementation.

fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>

Reads all bytes until EOF in this source, placing them into buf.

fn read_to_string(&mut self, buf: &mut String) -> Result<usize>

Reads all bytes until EOF in this source, appending them to buf.

fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>

Reads the exact number of bytes required to fill buf.

fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<()>

🔬This is a nightly-only experimental API. (read_buf #78485)

Reads the exact number of bytes required to fill cursor.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Creates a “by reference” adapter for this instance of Read.

fn bytes(self) -> Bytes<Self>

where Self: Sized,

Transforms this Read instance to an Iterator over its bytes.

fn chain<R: Read>(self, next: R) -> Chain<Self, R>

where Self: Sized,

Creates an adapter which will chain this stream with another.

fn take(self, limit: u64) -> Take<Self>

where Self: Sized,

Creates an adapter which will read at most limit bytes from it.

fn read_array<const N: usize>(&mut self) -> Result<[u8; N]>

where Self: Sized,

🔬This is a nightly-only experimental API. (read_array #148848)

Read and return a fixed array of bytes from this source.