Struct IoBuffer 

pub struct IoBuffer { /* private fields */ }

A buffered I/O sink that accumulates writes and flushes on demand.

Implementations

impl IoBuffer

pub fn new(flush_threshold: usize) -> Self

Create a buffer with the given flush threshold (bytes).

pub fn write(&mut self, data: &[u8]) -> Vec<u8>

Write bytes to the buffer. Auto-flushes when threshold is exceeded.

pub fn write_str(&mut self, s: &str) -> Vec<u8>

Write a UTF-8 string.

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

Flush the buffer, returning its contents.

pub fn buffered_bytes(&self) -> usize

Current buffer occupancy in bytes.

pub fn has_data(&self) -> bool

Whether the buffer contains data.

pub fn write_count(&self) -> u64

Number of write calls.

pub fn flush_count(&self) -> u64

Number of flush calls.

pub fn total_bytes(&self) -> u64

Total bytes written (including not-yet-flushed data).

Trait Implementations

impl Default for IoBuffer

fn default() -> Self

Returns the “default value” for a type.