Struct unsafe_io::UnsafeReadable

#[repr(transparent)]pub struct UnsafeReadable(_);

A non-owning unsafe I/O handle that implements Read. Read functions are considered safe, so this type requires unsafe to construct.

Like UnsafeHandle, this doesn’t implement Into* or From* traits.

Platform-specific behavior

On Posix-ish platforms, this reads from the handle as if it were a File. On Windows, this reads from a file-like handle as if it were a File, and from a socket-like handle as if it were a TcpStream.

Trait Implementations

impl AsRawFd for UnsafeReadable

UnsafeReadable doesn’t own its handle; see the comments for impl AsRawFd for UnsafeHandle.

fn as_raw_fd(&self) -> RawFd

Extracts the raw file descriptor.

impl Clone for UnsafeReadable

fn clone(&self) -> UnsafeReadable

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for UnsafeReadable

impl Debug for UnsafeReadable

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

Formats the value using the given formatter.

impl FromRawFd for UnsafeReadable

UnsafeReadable doesn’t own its handle; see the comments for impl AsRawFd for UnsafeHandle.

unsafe fn from_raw_fd(raw_fd: RawFd) -> Self

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

impl FromUnsafeHandle for UnsafeReadable

UnsafeReadable doesn’t own its handle; see the comments for impl AsRawFd for UnsafeHandle.

unsafe fn from_unsafe_handle(unsafe_handle: UnsafeHandle) -> Self

Constructs a new instance of Self from the given unsafe handle.

impl IntoRawFd for UnsafeReadable

UnsafeReadable doesn’t own its handle; see the comments for impl AsRawFd for UnsafeHandle.

fn into_raw_fd(self) -> RawFd

Consumes this object, returning the raw underlying file descriptor.

impl Read for UnsafeReadable

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_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)

Determines if this Reader has an efficient read_vectored implementation.

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

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

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

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

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

Read the exact number of bytes required to fill buf.

pub unsafe fn initializer(&self) -> Initializer

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

Determines if this Reader can work with buffers of uninitialized memory.

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

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

pub fn bytes(self) -> Bytes<Self>

Transforms this Read instance to an Iterator over its bytes.

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

Creates an adaptor which will chain this stream with another.

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

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