fil_node_t Struct Reference

File node of a tablespace or the log data space. More...

#include <fil0fil.h>

Public Types
using	List_node = UT_LIST_NODE_T(fil_node_t)

Public Member Functions
bool	can_be_closed () const
	Returns true if the file can be closed. More...
bool	is_flushed () const
	Returns true if the file is flushed. More...
void	set_flushed ()
	Sets file to flushed state. More...
bool	is_offset_valid (os_offset_t byte_offset) const

Public Attributes
fil_space_t *	space
	tablespace containing this file More...
char *	name
	file name; protected by Fil_shard::m_mutex and log_sys->mutex. More...
bool	is_open
	whether this file is open. More...
pfs_os_file_t	handle
	file handle (valid if is_open) More...
os_event_t	sync_event
	event that groups and serializes calls to fsync More...
bool	is_raw_disk
	whether the file actually is a raw device or disk partition More...
page_no_t	size
	size of the file in database pages (0 if not known yet); the possible last incomplete megabyte may be ignored if space->id == 0 More...
page_no_t	flush_size
	Size of the file when last flushed, used to force the flush when file grows to keep the filesystem metadata synced when using O_DIRECT_NO_FSYNC. More...
page_no_t	init_size
	initial size of the file in database pages; FIL_IBD_FILE_INITIAL_SIZE by default More...
page_no_t	max_size
	maximum size of the file in database pages More...
size_t	n_pending_ios
	count of pending I/O's; is_open must be true if nonzero More...
size_t	n_pending_flushes
	count of pending flushes; is_open must be true if nonzero More...
bool	is_being_extended
	Set to true when a file is being extended. More...
int64_t	modification_counter
	number of writes to the file since the system was started More...
int64_t	flush_counter
	the modification_counter of the latest flush to disk More...
List_node	LRU
	link to the fil_system->LRU list (keeping track of open files) More...
bool	punch_hole
	whether the file system of this file supports PUNCH HOLE More...
size_t	block_size
	block size to use for punching holes More...
bool	atomic_write
	whether atomic write is enabled for this file More...
size_t	magic_n
	FIL_NODE_MAGIC_N. More...

Detailed Description

File node of a tablespace or the log data space.

Member Typedef Documentation

List_node

using fil_node_t::List_node = UT_LIST_NODE_T(fil_node_t)

Member Function Documentation

can_be_closed()

bool fil_node_t::can_be_closed

(

)

const

Returns true if the file can be closed.

is_flushed()

bool fil_node_t::is_flushed ( ) const

inline

Returns true if the file is flushed.

is_offset_valid()

bool fil_node_t::is_offset_valid ( os_offset_t  byte_offset ) const

inline

set_flushed()

void fil_node_t::set_flushed ( )

inline

Sets file to flushed state.

Member Data Documentation

atomic_write

bool fil_node_t::atomic_write

whether atomic write is enabled for this file

block_size

size_t fil_node_t::block_size

block size to use for punching holes

flush_counter

int64_t fil_node_t::flush_counter

the modification_counter of the latest flush to disk

flush_size

page_no_t fil_node_t::flush_size

Size of the file when last flushed, used to force the flush when file grows to keep the filesystem metadata synced when using O_DIRECT_NO_FSYNC.

handle

pfs_os_file_t fil_node_t::handle

file handle (valid if is_open)

init_size

page_no_t fil_node_t::init_size

initial size of the file in database pages; FIL_IBD_FILE_INITIAL_SIZE by default

is_being_extended

bool fil_node_t::is_being_extended

Set to true when a file is being extended.

is_open

bool fil_node_t::is_open

whether this file is open.

Note: We set the is_open flag after we increase the write the MLOG_FILE_OPEN record to redo log. Therefore we increment the in_use reference count before setting the OPEN flag.

is_raw_disk

bool fil_node_t::is_raw_disk

whether the file actually is a raw device or disk partition

LRU

List_node fil_node_t::LRU

link to the fil_system->LRU list (keeping track of open files)

magic_n

size_t fil_node_t::magic_n

FIL_NODE_MAGIC_N.

max_size

page_no_t fil_node_t::max_size

maximum size of the file in database pages

modification_counter

int64_t fil_node_t::modification_counter

number of writes to the file since the system was started

n_pending_flushes

size_t fil_node_t::n_pending_flushes

count of pending flushes; is_open must be true if nonzero

n_pending_ios

size_t fil_node_t::n_pending_ios

count of pending I/O's; is_open must be true if nonzero

name

char* fil_node_t::name

file name; protected by Fil_shard::m_mutex and log_sys->mutex.

punch_hole

bool fil_node_t::punch_hole

whether the file system of this file supports PUNCH HOLE

size

page_no_t fil_node_t::size

size of the file in database pages (0 if not known yet); the possible last incomplete megabyte may be ignored if space->id == 0

space

fil_space_t* fil_node_t::space

tablespace containing this file

sync_event

os_event_t fil_node_t::sync_event

event that groups and serializes calls to fsync

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

• storage/innobase/include/fil0fil.h
• storage/innobase/fil/fil0fil.cc