LCStoreCDB Class Reference

LCStore implementation which stores data as a collection of CDB files in the directory given by $wgCacheDirectory. More...

Inheritance diagram for LCStoreCDB:

Collaboration diagram for LCStoreCDB:

Public Member Functions
	__construct ( $conf=[])
	finishWrite ()
	Finish a write transaction.
	get ( $code, $key)
	Get a value.
	set ( $key, $value)
	Set a key to a given value.
	startWrite ( $code)
	Start a write transaction.

Protected Member Functions
	getFileName ( $code)

Private Attributes
string	$currentLang
	Current language code.
bool string	$directory
	Cache directory.
Reader[]	$readers
Writer	$writer

Detailed Description

LCStore implementation which stores data as a collection of CDB files in the directory given by $wgCacheDirectory.

If $wgCacheDirectory is not set, this will throw an exception.

Profiling indicates that on Linux, this implementation outperforms MySQL if the directory is on a local filesystem and there is ample kernel cache space. The performance advantage is greater when the DBA extension is available than it is with the PHP port.

See Cdb.php and https://cr.yp.to/cdb.html

Definition at line 36 of file LCStoreCDB.php.

Constructor & Destructor Documentation

__construct()

LCStoreCDB::__construct

(

$conf = []

)

Definition at line 50 of file LCStoreCDB.php.

References $wgCacheDirectory, and directory.

Member Function Documentation

finishWrite()

LCStoreCDB::finishWrite

(

)

Finish a write transaction.

Implements LCStore.

Definition at line 113 of file LCStoreCDB.php.

References $e, and writer.

get()

LCStoreCDB::get	(		$code,
			$key )

Get a value.

Parameters

string	$code	Language code
string	$key	Cache key

Implements LCStore.

Definition at line 60 of file LCStoreCDB.php.

References $code, $e, $value, getFileName(), unserialize(), and wfDebug().

getFileName()

LCStoreCDB::getFileName ( $code )

protected

Definition at line 136 of file LCStoreCDB.php.

References $code.

Referenced by get(), and startWrite().

set()

LCStoreCDB::set	(		$key,
			$value )

Set a key to a given value.

startWrite() must be called before this is called, and finishWrite() must be called afterwards.

Parameters

string	$key
mixed	$value

Implements LCStore.

Definition at line 125 of file LCStoreCDB.php.

References $e, $value, serialize(), and writer.

startWrite()

LCStoreCDB::startWrite

(

$code

)

Start a write transaction.

Parameters

string

$code

Language code

Implements LCStore.

Definition at line 92 of file LCStoreCDB.php.

References $code, $e, directory, getFileName(), wfMkdirParents(), and writer.

Member Data Documentation

$currentLang

string LCStoreCDB::$currentLang

private

Current language code.

Definition at line 45 of file LCStoreCDB.php.

$directory

bool string LCStoreCDB::$directory

private

Cache directory.

False if not set

Definition at line 48 of file LCStoreCDB.php.

$readers

Reader [] LCStoreCDB::$readers

private

Definition at line 39 of file LCStoreCDB.php.

$writer

Writer LCStoreCDB::$writer

private

Definition at line 42 of file LCStoreCDB.php.

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

• includes/cache/localisation/LCStoreCDB.php