Module buffer_pool 

Available on crate feature std only.

Pre-allocated Buffer Pool

Recycles I/O buffers to avoid a per-packet heap allocation. A two-level pool: a lock-free global ArrayQueue backed by a per-thread LOCAL_POOL cache, so the hot acquire/return path usually stays thread-local and contention-free, spilling to the global queue only in batches.

Used by the low-level transport::udp_transport socket helper and the buffer_pool_bench. NOTE: the production SessionTransport-level recv path (TcpSessionTransport) uses a persistent BytesMut accumulator instead, so this pool is the alternate / lower-level path rather than the main data plane.

Structs

BufferPool

A pool of pre-allocated buffers for zero-allocation I/O

PoolStats

Pool statistics

PooledBuffer

A buffer borrowed from the pool

Functions

global_pool

Get the global buffer pool