Struct TailCapture 

pub struct TailCapture { /* private fields */ }

Ring buffer recording the last N output bytes plus a total byte count.

Implementations

impl TailCapture

pub fn new(cap: usize) -> Self

Creates a capture that retains at most cap trailing bytes.

pub fn append(&mut self, s: &[u8])

Appends bytes, keeping only the most recent cap bytes.

pub fn take(&mut self) -> Vec<u8>

Returns the captured bytes in order and resets the capture.

pub fn total(&self) -> u64

Total number of bytes ever appended.

pub fn len(&self) -> usize

Number of bytes currently retained.

pub fn is_empty(&self) -> bool

Returns true when no bytes are retained.

Trait Implementations

impl Debug for TailCapture

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

Formats the value using the given formatter.

impl Default for TailCapture

fn default() -> TailCapture

Returns the “default value” for a type.