Trait ReadAt 

pub trait ReadAt {
    // Required methods
    fn read_at(&self, offset: u64, buf: &mut [u8]) -> Result<usize>;
    fn len(&self) -> u64;

    // Provided method
    fn is_empty(&self) -> bool { ... }
}

Sync data source supporting offset-based reads.

Enables parallel splitting by allowing concurrent reads at different offsets.

Required Methods

fn read_at(&self, offset: u64, buf: &mut [u8]) -> Result<usize>

Read data at offset into buffer, returning bytes read.

fn len(&self) -> u64

Total size of the data source.

Provided Methods

fn is_empty(&self) -> bool

Whether the data source is empty.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl ReadAt for Bytes

fn read_at(&self, offset: u64, buf: &mut [u8]) -> Result<usize>

fn len(&self) -> u64

impl ReadAt for File

Available on Unix only.

fn read_at(&self, offset: u64, buf: &mut [u8]) -> Result<usize>

fn len(&self) -> u64

impl ReadAt for Vec<u8>

fn read_at(&self, offset: u64, buf: &mut [u8]) -> Result<usize>

fn len(&self) -> u64

impl ReadAt for [u8]

fn read_at(&self, offset: u64, buf: &mut [u8]) -> Result<usize>

fn len(&self) -> u64

impl<T: ReadAt + ?Sized> ReadAt for &T

fn read_at(&self, offset: u64, buf: &mut [u8]) -> Result<usize>

fn len(&self) -> u64

Implementors