Struct uu_tail::chunks::BytesChunk

pub struct BytesChunk { /* private fields */ }

A BytesChunk storing a fixed size number of bytes in a buffer.

Implementations

impl BytesChunk

pub fn new() -> Self

pub fn get_buffer(&self) -> &[u8]

Receive the internal buffer safely, so it returns a slice only containing as many bytes as large the self.bytes value is.

returns: a slice containing the bytes of the internal buffer from [0..self.bytes]

Examples

let mut chunk = BytesChunk::new();
chunk.bytes = 1;
assert_eq!(&[0], chunk.get_buffer());

pub fn get_buffer_with(&self, offset: usize) -> &[u8]

Like BytesChunk::get_buffer, but returning a slice from [offset.self.bytes].

returns: a slice containing the bytes of the internal buffer from [offset..self.bytes]

Examples

let mut chunk = BytesChunk::new();
chunk.bytes = 2;
assert_eq!(&[0], chunk.get_buffer_with(1));

pub fn has_data(&self) -> bool

pub fn fill(&mut self, filehandle: &mut impl BufRead) -> UResult<Option<usize>>

Fills self.buffer with maximal BUFFER_SIZE number of bytes, draining the reader by that number of bytes. If EOF is reached (so 0 bytes are read), then returns [UResult<None>] or else the result with [Some(bytes)] where bytes is the number of bytes read from the source.

Trait Implementations

impl Clone for BytesChunk

fn clone(&self) -> BytesChunk

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for BytesChunk

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

Formats the value using the given formatter.

impl PartialEq<BytesChunk> for BytesChunk

fn eq(&self, other: &BytesChunk) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for BytesChunk

impl StructuralEq for BytesChunk

impl StructuralPartialEq for BytesChunk