Trait PackReadSource 

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

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

A source that can read pack bytes positionally without changing shared cursor state or requiring the complete pack to be resident in memory.

Required Methods

fn len(&self) -> Result<u64>

Total source length, including the pack trailer.

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

Read bytes beginning at offset, with the same short-read semantics as std::io::Read::read. Returning 0 means end of source.

Provided Methods

fn is_empty(&self) -> Result<bool>

Whether this source contains no bytes.

Dyn Compatibility

This trait is dyn compatible.

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

Implementations on Foreign Types

impl PackReadSource for File

Available on Unix only.

fn len(&self) -> Result<u64>

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

impl PackReadSource for Vec<u8>

fn len(&self) -> Result<u64>

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

Implementors

impl PackReadSource for SlicePackSource<'_>