Expand description

Provides abstractions for working with bytes.

This is fork of bytes crate

The ntex-bytes crate provides an efficient byte buffer structure (Bytes) and traits for working with buffer implementations (Buf, BufMut).


Bytes is an efficient container for storing and operating on contiguous slices of memory. It is intended for use primarily in networking code, but could have applications elsewhere as well.

Bytes values facilitate zero-copy network programming by allowing multiple Bytes objects to point to the same underlying memory. This is managed by using a reference count to track when the memory is no longer needed and can be freed.

A Bytes handle can be created directly from an existing byte store (such as &[u8] or Vec<u8>), but usually a BytesMut is used first and written to. For example:

use ntex_bytes::{BytesMut, BufMut};

let mut buf = BytesMut::with_capacity(1024);
buf.put(&b"hello world"[..]);

let a = buf.split();
assert_eq!(a, b"hello world\x04\xD2"[..]);

buf.put(&b"goodbye world"[..]);

let b = buf.split();
assert_eq!(b, b"goodbye world"[..]);

assert_eq!(buf.capacity(), 998);

In the above example, only a single buffer of 1024 is allocated. The handles a and b will share the underlying buffer and maintain indices tracking the view into the buffer represented by the handle.

See the struct docs for more details.


Utilities for working with buffers.


An immutable UTF-8 encoded string with Bytes as a storage.

A reference counted contiguous slice of memory.

A unique reference to a contiguous slice of memory.

A unique reference to a contiguous slice of memory.


Read bytes from a buffer.

A trait for values that provide sequential write access to bytes.