Struct buf_list::BufList

pub struct BufList { /* private fields */ }

Data composed of a list of Bytes chunks.

For more, see the crate documentation.

Implementations

impl BufList

pub fn new() -> Self

Creates a new, empty, BufList.

pub fn num_chunks(&self) -> usize

Returns the total number of chunks in this BufList.

Examples

use buf_list::BufList;

let buf_list = vec![&b"hello"[..], &b"world"[..]].into_iter().collect::<BufList>();
assert_eq!(buf_list.num_chunks(), 2);

pub fn num_bytes(&self) -> usize

Returns the total number of bytes across all chunks.

Examples

use buf_list::BufList;

let buf_list = vec![&b"hello"[..], &b"world"[..]].into_iter().collect::<BufList>();
assert_eq!(buf_list.num_bytes(), 10);

pub fn iter(&self) -> Iter<'_>

Iterates over the chunks in this list.

pub fn push_chunk(&mut self, data: impl Buf) -> Bytes

Adds a new chunk to this list.

If the provided Buf is zero-length, it will not be added to the list.

Examples

use buf_list::BufList;
use bytes::{Buf, Bytes};

let mut buf_list = BufList::new();

// &'static [u8] implements Buf.
buf_list.push_chunk(&b"hello"[..]);
assert_eq!(buf_list.chunk(), &b"hello"[..]);

// Bytes also implements Buf.
buf_list.push_chunk(Bytes::from_static(&b"world"[..]));
assert_eq!(buf_list.num_chunks(), 2);

// A zero-length `Buf` will not be added to the list.
buf_list.push_chunk(Bytes::new());
assert_eq!(buf_list.num_chunks(), 2);

Trait Implementations

impl Buf for BufList

fn remaining(&self) -> usize

Returns the number of bytes between the current position and the end of the buffer.

fn chunk(&self) -> &[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).

fn chunks_vectored<'iovs>(&'iovs self, iovs: &mut [IoSlice<'iovs>]) -> usize

Fills dst with potentially multiple slices starting at self’s current position.

fn advance(&mut self, amt: usize)

Advance the internal cursor of the Buf

fn copy_to_bytes(&mut self, len: usize) -> Bytes

Consumes len bytes inside self and returns new instance of Bytes with this data.

fn has_remaining(&self) -> bool

Returns true if there are any more bytes to consume

fn copy_to_slice(&mut self, dst: &mut [u8])

Copies bytes from self into dst.

fn get_u8(&mut self) -> u8

Gets an unsigned 8 bit integer from self.

fn get_i8(&mut self) -> i8

Gets a signed 8 bit integer from self.

fn get_u16(&mut self) -> u16

Gets an unsigned 16 bit integer from self in big-endian byte order.

fn get_u16_le(&mut self) -> u16

Gets an unsigned 16 bit integer from self in little-endian byte order.

fn get_u16_ne(&mut self) -> u16

Gets an unsigned 16 bit integer from self in native-endian byte order.

fn get_i16(&mut self) -> i16

Gets a signed 16 bit integer from self in big-endian byte order.

fn get_i16_le(&mut self) -> i16

Gets a signed 16 bit integer from self in little-endian byte order.

fn get_i16_ne(&mut self) -> i16

Gets a signed 16 bit integer from self in native-endian byte order.

fn get_u32(&mut self) -> u32

Gets an unsigned 32 bit integer from self in the big-endian byte order.

fn get_u32_le(&mut self) -> u32

Gets an unsigned 32 bit integer from self in the little-endian byte order.

fn get_u32_ne(&mut self) -> u32

Gets an unsigned 32 bit integer from self in native-endian byte order.

fn get_i32(&mut self) -> i32

Gets a signed 32 bit integer from self in big-endian byte order.

fn get_i32_le(&mut self) -> i32

Gets a signed 32 bit integer from self in little-endian byte order.

fn get_i32_ne(&mut self) -> i32

Gets a signed 32 bit integer from self in native-endian byte order.

fn get_u64(&mut self) -> u64

Gets an unsigned 64 bit integer from self in big-endian byte order.

fn get_u64_le(&mut self) -> u64

Gets an unsigned 64 bit integer from self in little-endian byte order.

fn get_u64_ne(&mut self) -> u64

Gets an unsigned 64 bit integer from self in native-endian byte order.

fn get_i64(&mut self) -> i64

Gets a signed 64 bit integer from self in big-endian byte order.

fn get_i64_le(&mut self) -> i64

Gets a signed 64 bit integer from self in little-endian byte order.

fn get_i64_ne(&mut self) -> i64

Gets a signed 64 bit integer from self in native-endian byte order.

fn get_u128(&mut self) -> u128

Gets an unsigned 128 bit integer from self in big-endian byte order.

fn get_u128_le(&mut self) -> u128

Gets an unsigned 128 bit integer from self in little-endian byte order.

fn get_u128_ne(&mut self) -> u128

Gets an unsigned 128 bit integer from self in native-endian byte order.

fn get_i128(&mut self) -> i128

Gets a signed 128 bit integer from self in big-endian byte order.

fn get_i128_le(&mut self) -> i128

Gets a signed 128 bit integer from self in little-endian byte order.

fn get_i128_ne(&mut self) -> i128

Gets a signed 128 bit integer from self in native-endian byte order.

fn get_uint(&mut self, nbytes: usize) -> u64

Gets an unsigned n-byte integer from self in big-endian byte order.

fn get_uint_le(&mut self, nbytes: usize) -> u64

Gets an unsigned n-byte integer from self in little-endian byte order.

fn get_uint_ne(&mut self, nbytes: usize) -> u64

Gets an unsigned n-byte integer from self in native-endian byte order.

fn get_int(&mut self, nbytes: usize) -> i64

Gets a signed n-byte integer from self in big-endian byte order.

fn get_int_le(&mut self, nbytes: usize) -> i64

Gets a signed n-byte integer from self in little-endian byte order.

fn get_int_ne(&mut self, nbytes: usize) -> i64

Gets a signed n-byte integer from self in native-endian byte order.

fn get_f32(&mut self) -> f32

Gets an IEEE754 single-precision (4 bytes) floating point number from self in big-endian byte order.

fn get_f32_le(&mut self) -> f32

Gets an IEEE754 single-precision (4 bytes) floating point number from self in little-endian byte order.

fn get_f32_ne(&mut self) -> f32

Gets an IEEE754 single-precision (4 bytes) floating point number from self in native-endian byte order.

fn get_f64(&mut self) -> f64

Gets an IEEE754 double-precision (8 bytes) floating point number from self in big-endian byte order.

fn get_f64_le(&mut self) -> f64

Gets an IEEE754 double-precision (8 bytes) floating point number from self in little-endian byte order.

fn get_f64_ne(&mut self) -> f64

Gets an IEEE754 double-precision (8 bytes) floating point number from self in native-endian byte order.

fn take(self, limit: usize) -> Take<Self>where
    Self: Sized,

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

fn chain<U>(self, next: U) -> Chain<Self, U>where
    U: Buf,
    Self: Sized,

Creates an adaptor which will chain this buffer with another.

fn reader(self) -> Reader<Self>where
    Self: Sized,

Creates an adaptor which implements the Read trait for self.

impl Clone for BufList

fn clone(&self) -> BufList

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for BufList

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

Formats the value using the given formatter.

impl Default for BufList

fn default() -> BufList

Returns the “default value” for a type.

impl<B> FromIterator<B> for BufListwhere
    B: Buf,

fn from_iter<T: IntoIterator<Item = B>>(iter: T) -> Self

Creates a value from an iterator.

impl<'a> IntoIterator for &'a BufList

type Item = &'a Bytes

The type of the elements being iterated over.

type IntoIter = Iter<'a>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl IntoIterator for BufList

type Item = Bytes

The type of the elements being iterated over.

type IntoIter = IntoIter

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.