Struct SimplePool 

pub struct SimplePool { /* private fields */ }

Mutex-protected free list of chunk buffers.

Finished messages are split() off the front of a chunk, so consecutive messages pack into the same allocation (bump-arena style). take only asks for a fresh chunk when less than a quarter of one is left; that reserve reuses the allocation for free once every message cut from it has been dropped, so steady state is zero allocations, and with messages in flight it costs about one allocation per chunk instead of per message. Memory pinned by in-flight messages is roughly their own size plus one chunk.

Implementations

impl SimplePool

pub fn new(initial_capacity: usize) -> Self

Trait Implementations

impl BufPool for SimplePool

Available on crate feature std only.

fn take(&self) -> BytesMut

fn chunk_size(&self) -> usize

Preferred buffer size; Builder::flush reserves this much when a buffer runs low.

fn give(&self, b: BytesMut)