A chunk of buffers. More...

Public Member Functions
size_t	mem_size () const
	Get the size of 'mem' in bytes. More...

bool	madvise_dump ()
	Advices the OS that this chunk should not be dumped to a core file. More...

bool	madvise_dont_dump ()
	Advices the OS that this chunk should be dumped to a core file. More...

bool	contains (const buf_block_t *ptr) const
	Checks if this chunk contains a given block without dereferencing it. More...

Public Attributes
ulint	size
	size of frames[] and blocks[] More...

unsigned char *	mem
	pointer to the memory area which was allocated for the frames More...

buf_block_t *	blocks
	array of buffer control blocks More...

Detailed Description

A chunk of buffers.

The buffer pool is allocated in chunks.

Member Function Documentation

◆ contains()

bool buf_chunk_t::contains ( const buf_block_t * ptr ) const

inline

Checks if this chunk contains a given block without dereferencing it.

Parameters

[in] ptr A pointer which we want to check

Returns: true iff the ptr points inside the chunk

◆ madvise_dont_dump()

bool buf_chunk_t::madvise_dont_dump ( )

Advices the OS that this chunk should be dumped to a core file.

Emits a warning to the log if could not succeed.

Returns: true iff succeeded, false if no OS support or failed

◆ madvise_dump()

bool buf_chunk_t::madvise_dump ( )

Advices the OS that this chunk should not be dumped to a core file.

Emits a warning to the log if could not succeed.

Returns: true iff succeeded, false if no OS support or failed

◆ mem_size()

size_t buf_chunk_t::mem_size ( ) const

inline

Get the size of 'mem' in bytes.

Member Data Documentation

◆ blocks

buf_block_t* buf_chunk_t::blocks

array of buffer control blocks

◆ mem

unsigned char* buf_chunk_t::mem

pointer to the memory area which was allocated for the frames

◆ size

ulint buf_chunk_t::size

size of frames[] and blocks[]

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

storage/innobase/include/buf0buf.ic

Public Member Functions

Public Attributes