Struct bytes::buf::Reader
[−]
[src]
pub struct Reader<B> { /* fields omitted */ }
A Buf
adapter which implements io::Read
for the inner value.
This struct is generally created by calling reader()
on Buf
. See
documentation of reader()
for more
details.
Methods
impl<B: Buf> Reader<B>
[src]
fn get_ref(&self) -> &B
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Gets a reference to the underlying Buf
.
It is inadvisable to directly read from the underlying Buf
.
Examples
use bytes::Buf; use std::io::{self, Cursor}; let mut buf = Cursor::new(b"hello world").reader(); assert_eq!(0, buf.get_ref().position());
fn get_mut(&mut self) -> &mut B
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Gets a mutable reference to the underlying Buf
.
It is inadvisable to directly read from the underlying Buf
.
Examples
use bytes::Buf; use std::io::{self, Cursor}; let mut buf = Cursor::new(b"hello world").reader(); let mut dst = vec![]; buf.get_mut().set_position(2); io::copy(&mut buf, &mut dst).unwrap(); assert_eq!(*dst, b"llo world"[..]);
fn into_inner(self) -> B
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Consumes this Reader
, returning the underlying value.
Examples
use bytes::Buf; use std::io::{self, Cursor}; let mut buf = Cursor::new(b"hello world").reader(); let mut dst = vec![]; io::copy(&mut buf, &mut dst).unwrap(); let buf = buf.into_inner(); assert_eq!(0, buf.remaining());
Trait Implementations
impl<B: Debug> Debug for Reader<B>
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impl<B: Buf + Sized> Read for Reader<B>
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fn read(&mut self, dst: &mut [u8]) -> Result<usize>
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Pull some bytes from this source into the specified buffer, returning how many bytes were read. Read more
unsafe fn initializer(&self) -> Initializer
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read_initializer
)Determines if this Read
er can work with buffers of uninitialized memory. Read more
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>
1.0.0[src]
Read all bytes until EOF in this source, placing them into buf
. Read more
fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
1.0.0[src]
Read all bytes until EOF in this source, placing them into buf
. Read more
fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
1.6.0[src]
Read the exact number of bytes required to fill buf
. Read more
fn by_ref(&mut self) -> &mut Self
1.0.0[src]
Creates a "by reference" adaptor for this instance of Read
. Read more
fn bytes(self) -> Bytes<Self>
1.0.0[src]
Transforms this Read
instance to an [Iterator
] over its bytes. Read more
fn chars(self) -> Chars<Self>
[src]
🔬 This is a nightly-only experimental API. (io
)
the semantics of a partial read/write of where errors happen is currently unclear and may change
Transforms this Read
instance to an [Iterator
] over [char
]s. Read more
fn chain<R>(self, next: R) -> Chain<Self, R> where
R: Read,
1.0.0[src]
R: Read,
Creates an adaptor which will chain this stream with another. Read more
fn take(self, limit: u64) -> Take<Self>
1.0.0[src]
Creates an adaptor which will read at most limit
bytes from it. Read more