Struct driver_net::NetBufPool

pub struct NetBufPool { /* private fields */ }

A pool of NetBufs to speed up buffer allocation.

It divides a large memory into several equal parts for each buffer.

Implementations

impl NetBufPool

pub fn new(capacity: usize, buf_len: usize) -> DevResult<Arc<Self>>

Creates a new pool with the given capacity, and all buffer lengths are set to buf_len.

pub const fn capacity(&self) -> usize

Returns the capacity of the pool.

pub const fn buffer_len(&self) -> usize

Returns the length of each buffer.

pub fn alloc(self: &Arc<Self>) -> Option<NetBuf>

Allocates a buffer from the pool.

Returns None if no buffer is available.

pub fn alloc_boxed(self: &Arc<Self>) -> Option<NetBufBox>

Allocates a buffer wrapped in a Box from the pool.

Returns None if no buffer is available.