pub struct Chain<T, U> { /* private fields */ }
Expand description
A Chain
sequences two buffers.
Chain
is an adapter that links two underlying buffers and provides a
continuous view across both buffers. It is able to sequence either immutable
buffers (Buf
values) or mutable buffers (BufMut
values).
This struct is generally created by calling Buf::chain
. Please see that
function’s documentation for more detail.
Examples
use bytes::{Bytes, Buf};
let mut buf = (&b"hello "[..])
.chain(&b"world"[..]);
let full: Bytes = buf.copy_to_bytes(11);
assert_eq!(full[..], b"hello world"[..]);
Implementations
sourceimpl<T, U> Chain<T, U>
impl<T, U> Chain<T, U>
sourcepub fn first_ref(&self) -> &T
pub fn first_ref(&self) -> &T
Gets a reference to the first underlying Buf
.
Examples
use bytes::Buf;
let buf = (&b"hello"[..])
.chain(&b"world"[..]);
assert_eq!(buf.first_ref()[..], b"hello"[..]);
sourcepub fn first_mut(&mut self) -> &mut T
pub fn first_mut(&mut self) -> &mut T
Gets a mutable reference to the first underlying Buf
.
Examples
use bytes::Buf;
let mut buf = (&b"hello"[..])
.chain(&b"world"[..]);
buf.first_mut().advance(1);
let full = buf.copy_to_bytes(9);
assert_eq!(full, b"elloworld"[..]);
sourcepub fn last_ref(&self) -> &U
pub fn last_ref(&self) -> &U
Gets a reference to the last underlying Buf
.
Examples
use bytes::Buf;
let buf = (&b"hello"[..])
.chain(&b"world"[..]);
assert_eq!(buf.last_ref()[..], b"world"[..]);
sourcepub fn last_mut(&mut self) -> &mut U
pub fn last_mut(&mut self) -> &mut U
Gets a mutable reference to the last underlying Buf
.
Examples
use bytes::Buf;
let mut buf = (&b"hello "[..])
.chain(&b"world"[..]);
buf.last_mut().advance(1);
let full = buf.copy_to_bytes(10);
assert_eq!(full, b"hello orld"[..]);
sourcepub fn into_inner(self) -> (T, U)
pub fn into_inner(self) -> (T, U)
Consumes this Chain
, returning the underlying values.
Examples
use bytes::Buf;
let chain = (&b"hello"[..])
.chain(&b"world"[..]);
let (first, last) = chain.into_inner();
assert_eq!(first[..], b"hello"[..]);
assert_eq!(last[..], b"world"[..]);
Trait Implementations
sourceimpl<T, U> Buf for Chain<T, U> where
T: Buf,
U: Buf,
impl<T, U> Buf for Chain<T, U> where
T: Buf,
U: Buf,
sourcefn remaining(&self) -> usize
fn remaining(&self) -> usize
Returns the number of bytes between the current position and the end of the buffer. Read more
sourcefn chunk(&self) -> &[u8]ⓘNotable traits for &'_ [u8]impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]
fn chunk(&self) -> &[u8]ⓘNotable traits for &'_ [u8]impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]
Returns a slice starting at the current position and of length between 0
and Buf::remaining()
. Note that this can return shorter slice (this allows
non-continuous internal representation). Read more
sourcefn chunks_vectored<'a>(&'a self, dst: &mut [IoSlice<'a>]) -> usize
fn chunks_vectored<'a>(&'a self, dst: &mut [IoSlice<'a>]) -> usize
Fills dst
with potentially multiple slices starting at self
’s
current position. Read more
sourcefn copy_to_bytes(&mut self, len: usize) -> Bytes
fn copy_to_bytes(&mut self, len: usize) -> Bytes
Consumes len
bytes inside self and returns new instance of Bytes
with this data. Read more
sourcefn has_remaining(&self) -> bool
fn has_remaining(&self) -> bool
Returns true if there are any more bytes to consume Read more
sourcefn get_u16(&mut self) -> u16
fn get_u16(&mut self) -> u16
Gets an unsigned 16 bit integer from self
in big-endian byte order. Read more
sourcefn get_u16_le(&mut self) -> u16
fn get_u16_le(&mut self) -> u16
Gets an unsigned 16 bit integer from self
in little-endian byte order. Read more
sourcefn get_i16(&mut self) -> i16
fn get_i16(&mut self) -> i16
Gets a signed 16 bit integer from self
in big-endian byte order. Read more
sourcefn get_i16_le(&mut self) -> i16
fn get_i16_le(&mut self) -> i16
Gets a signed 16 bit integer from self
in little-endian byte order. Read more
sourcefn get_u32(&mut self) -> u32
fn get_u32(&mut self) -> u32
Gets an unsigned 32 bit integer from self
in the big-endian byte order. Read more
sourcefn get_u32_le(&mut self) -> u32
fn get_u32_le(&mut self) -> u32
Gets an unsigned 32 bit integer from self
in the little-endian byte order. Read more
sourcefn get_i32(&mut self) -> i32
fn get_i32(&mut self) -> i32
Gets a signed 32 bit integer from self
in big-endian byte order. Read more
sourcefn get_i32_le(&mut self) -> i32
fn get_i32_le(&mut self) -> i32
Gets a signed 32 bit integer from self
in little-endian byte order. Read more
sourcefn get_u64(&mut self) -> u64
fn get_u64(&mut self) -> u64
Gets an unsigned 64 bit integer from self
in big-endian byte order. Read more
sourcefn get_u64_le(&mut self) -> u64
fn get_u64_le(&mut self) -> u64
Gets an unsigned 64 bit integer from self
in little-endian byte order. Read more
sourcefn get_i64(&mut self) -> i64
fn get_i64(&mut self) -> i64
Gets a signed 64 bit integer from self
in big-endian byte order. Read more
sourcefn get_i64_le(&mut self) -> i64
fn get_i64_le(&mut self) -> i64
Gets a signed 64 bit integer from self
in little-endian byte order. Read more
sourcefn get_u128(&mut self) -> u128
fn get_u128(&mut self) -> u128
Gets an unsigned 128 bit integer from self
in big-endian byte order. Read more
sourcefn get_u128_le(&mut self) -> u128
fn get_u128_le(&mut self) -> u128
Gets an unsigned 128 bit integer from self
in little-endian byte order. Read more
sourcefn get_i128(&mut self) -> i128
fn get_i128(&mut self) -> i128
Gets a signed 128 bit integer from self
in big-endian byte order. Read more
sourcefn get_i128_le(&mut self) -> i128
fn get_i128_le(&mut self) -> i128
Gets a signed 128 bit integer from self
in little-endian byte order. Read more
sourcefn get_uint(&mut self, nbytes: usize) -> u64
fn get_uint(&mut self, nbytes: usize) -> u64
Gets an unsigned n-byte integer from self
in big-endian byte order. Read more
sourcefn get_uint_le(&mut self, nbytes: usize) -> u64
fn get_uint_le(&mut self, nbytes: usize) -> u64
Gets an unsigned n-byte integer from self
in little-endian byte order. Read more
sourcefn get_int(&mut self, nbytes: usize) -> i64
fn get_int(&mut self, nbytes: usize) -> i64
Gets a signed n-byte integer from self
in big-endian byte order. Read more
sourcefn get_int_le(&mut self, nbytes: usize) -> i64
fn get_int_le(&mut self, nbytes: usize) -> i64
Gets a signed n-byte integer from self
in little-endian byte order. Read more
sourcefn get_f32(&mut self) -> f32
fn get_f32(&mut self) -> f32
Gets an IEEE754 single-precision (4 bytes) floating point number from
self
in big-endian byte order. Read more
sourcefn get_f32_le(&mut self) -> f32
fn get_f32_le(&mut self) -> f32
Gets an IEEE754 single-precision (4 bytes) floating point number from
self
in little-endian byte order. Read more
sourcefn get_f64(&mut self) -> f64
fn get_f64(&mut self) -> f64
Gets an IEEE754 double-precision (8 bytes) floating point number from
self
in big-endian byte order. Read more
sourcefn get_f64_le(&mut self) -> f64
fn get_f64_le(&mut self) -> f64
Gets an IEEE754 double-precision (8 bytes) floating point number from
self
in little-endian byte order. Read more
sourcefn take(self, limit: usize) -> Take<Self> where
Self: Sized,
fn take(self, limit: usize) -> Take<Self> where
Self: Sized,
Creates an adaptor which will read at most limit
bytes from self
. Read more
sourceimpl<T, U> BufMut for Chain<T, U> where
T: BufMut,
U: BufMut,
impl<T, U> BufMut for Chain<T, U> where
T: BufMut,
U: BufMut,
sourcefn remaining_mut(&self) -> usize
fn remaining_mut(&self) -> usize
Returns the number of bytes that can be written from the current position until the end of the buffer is reached. Read more
sourcefn chunk_mut(&mut self) -> &mut UninitSlice
fn chunk_mut(&mut self) -> &mut UninitSlice
Returns a mutable slice starting at the current BufMut position and of
length between 0 and BufMut::remaining_mut()
. Note that this can be shorter than the
whole remainder of the buffer (this allows non-continuous implementation). Read more
sourceunsafe fn advance_mut(&mut self, cnt: usize)
unsafe fn advance_mut(&mut self, cnt: usize)
Advance the internal cursor of the BufMut Read more
sourcefn has_remaining_mut(&self) -> bool
fn has_remaining_mut(&self) -> bool
Returns true if there is space in self
for more bytes. Read more
sourcefn put<T: Buf>(&mut self, src: T) where
Self: Sized,
fn put<T: Buf>(&mut self, src: T) where
Self: Sized,
Transfer bytes into self
from src
and advance the cursor by the
number of bytes written. Read more
sourcefn put_slice(&mut self, src: &[u8])
fn put_slice(&mut self, src: &[u8])
Transfer bytes into self
from src
and advance the cursor by the
number of bytes written. Read more
sourcefn put_u16(&mut self, n: u16)
fn put_u16(&mut self, n: u16)
Writes an unsigned 16 bit integer to self
in big-endian byte order. Read more
sourcefn put_u16_le(&mut self, n: u16)
fn put_u16_le(&mut self, n: u16)
Writes an unsigned 16 bit integer to self
in little-endian byte order. Read more
sourcefn put_i16(&mut self, n: i16)
fn put_i16(&mut self, n: i16)
Writes a signed 16 bit integer to self
in big-endian byte order. Read more
sourcefn put_i16_le(&mut self, n: i16)
fn put_i16_le(&mut self, n: i16)
Writes a signed 16 bit integer to self
in little-endian byte order. Read more
sourcefn put_u32(&mut self, n: u32)
fn put_u32(&mut self, n: u32)
Writes an unsigned 32 bit integer to self
in big-endian byte order. Read more
sourcefn put_u32_le(&mut self, n: u32)
fn put_u32_le(&mut self, n: u32)
Writes an unsigned 32 bit integer to self
in little-endian byte order. Read more
sourcefn put_i32(&mut self, n: i32)
fn put_i32(&mut self, n: i32)
Writes a signed 32 bit integer to self
in big-endian byte order. Read more
sourcefn put_i32_le(&mut self, n: i32)
fn put_i32_le(&mut self, n: i32)
Writes a signed 32 bit integer to self
in little-endian byte order. Read more
sourcefn put_u64(&mut self, n: u64)
fn put_u64(&mut self, n: u64)
Writes an unsigned 64 bit integer to self
in the big-endian byte order. Read more
sourcefn put_u64_le(&mut self, n: u64)
fn put_u64_le(&mut self, n: u64)
Writes an unsigned 64 bit integer to self
in little-endian byte order. Read more
sourcefn put_i64(&mut self, n: i64)
fn put_i64(&mut self, n: i64)
Writes a signed 64 bit integer to self
in the big-endian byte order. Read more
sourcefn put_i64_le(&mut self, n: i64)
fn put_i64_le(&mut self, n: i64)
Writes a signed 64 bit integer to self
in little-endian byte order. Read more
sourcefn put_u128(&mut self, n: u128)
fn put_u128(&mut self, n: u128)
Writes an unsigned 128 bit integer to self
in the big-endian byte order. Read more
sourcefn put_u128_le(&mut self, n: u128)
fn put_u128_le(&mut self, n: u128)
Writes an unsigned 128 bit integer to self
in little-endian byte order. Read more
sourcefn put_i128(&mut self, n: i128)
fn put_i128(&mut self, n: i128)
Writes a signed 128 bit integer to self
in the big-endian byte order. Read more
sourcefn put_i128_le(&mut self, n: i128)
fn put_i128_le(&mut self, n: i128)
Writes a signed 128 bit integer to self
in little-endian byte order. Read more
sourcefn put_uint(&mut self, n: u64, nbytes: usize)
fn put_uint(&mut self, n: u64, nbytes: usize)
Writes an unsigned n-byte integer to self
in big-endian byte order. Read more
sourcefn put_uint_le(&mut self, n: u64, nbytes: usize)
fn put_uint_le(&mut self, n: u64, nbytes: usize)
Writes an unsigned n-byte integer to self
in the little-endian byte order. Read more
sourcefn put_int(&mut self, n: i64, nbytes: usize)
fn put_int(&mut self, n: i64, nbytes: usize)
Writes low nbytes
of a signed integer to self
in big-endian byte order. Read more
sourcefn put_int_le(&mut self, n: i64, nbytes: usize)
fn put_int_le(&mut self, n: i64, nbytes: usize)
Writes low nbytes
of a signed integer to self
in little-endian byte order. Read more
sourcefn put_f32(&mut self, n: f32)
fn put_f32(&mut self, n: f32)
Writes an IEEE754 single-precision (4 bytes) floating point number to
self
in big-endian byte order. Read more
sourcefn put_f32_le(&mut self, n: f32)
fn put_f32_le(&mut self, n: f32)
Writes an IEEE754 single-precision (4 bytes) floating point number to
self
in little-endian byte order. Read more
sourcefn put_f64(&mut self, n: f64)
fn put_f64(&mut self, n: f64)
Writes an IEEE754 double-precision (8 bytes) floating point number to
self
in big-endian byte order. Read more
sourcefn put_f64_le(&mut self, n: f64)
fn put_f64_le(&mut self, n: f64)
Writes an IEEE754 double-precision (8 bytes) floating point number to
self
in little-endian byte order. Read more
sourcefn limit(self, limit: usize) -> Limit<Self> where
Self: Sized,
fn limit(self, limit: usize) -> Limit<Self> where
Self: Sized,
Creates an adaptor which can write at most limit
bytes to self
. Read more
Auto Trait Implementations
impl<T, U> RefUnwindSafe for Chain<T, U> where
T: RefUnwindSafe,
U: RefUnwindSafe,
impl<T, U> Send for Chain<T, U> where
T: Send,
U: Send,
impl<T, U> Sync for Chain<T, U> where
T: Sync,
U: Sync,
impl<T, U> Unpin for Chain<T, U> where
T: Unpin,
U: Unpin,
impl<T, U> UnwindSafe for Chain<T, U> where
T: UnwindSafe,
U: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more