buffer_node Struct Reference

Node header embedded before user data. More...

#include <lib/buffer_pool.h>

Public Member Functions
	_Atomic (struct buffer_node *) next
	Next in free list (atomic for lock-free)
	_Atomic (uint64_t) returned_at_ms
	Timestamp when returned to free list.

Data Fields
uint32_t	magic
	Magic to identify pooled buffers.
uint32_t	_pad
	Padding for alignment.
size_t	size
	Size of user data portion.
struct buffer_pool *	pool
	Owning pool (for free)

Detailed Description

Node header embedded before user data.

Layout in memory: [buffer_node_t header][user data...] ^– pointer returned to caller

Definition at line 76 of file buffer_pool.h.

Member Function Documentation

_Atomic() [1/2]

buffer_node::_Atomic

(

struct buffer_node *

)

Next in free list (atomic for lock-free)

_Atomic() [2/2]

buffer_node::_Atomic

(

uint64_t

)

Timestamp when returned to free list.

Field Documentation

_pad

uint32_t buffer_node::_pad

Padding for alignment.

Definition at line 78 of file buffer_pool.h.

Referenced by buffer_pool_alloc().

magic

uint32_t buffer_node::magic

Magic to identify pooled buffers.

Definition at line 77 of file buffer_pool.h.

Referenced by buffer_pool_alloc(), and buffer_pool_free().

pool

struct buffer_pool* buffer_node::pool

Owning pool (for free)

Definition at line 82 of file buffer_pool.h.

Referenced by buffer_pool_alloc(), and buffer_pool_free().

size

size_t buffer_node::size

Size of user data portion.

Definition at line 79 of file buffer_pool.h.

Referenced by buffer_pool_alloc(), buffer_pool_free(), and buffer_pool_shrink().

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The documentation for this struct was generated from the following file:

• buffer_pool.h