Base class for memcached clients. More...

Inheritance diagram for MemcachedBagOStuff:

Collaboration diagram for MemcachedBagOStuff:

Public Member Functions
	add ($key, $value, $exptime=0)

	delete ($key)

	fixExpiry ($expiry)
	TTLs higher than 30 days will be detected as absolute TTLs (UNIX timestamps), and will result in the cache entry being discarded immediately because the expiry is in the past. More...

	getClient ()
	Get the underlying client object. More...

	makeKeyInternal ($keyspace, $args)
	Construct a cache key. More...

	merge ($key, callable $callback, $exptime=0, $attempts=10, $flags=0)

	modifySimpleRelayEvent (array $event)

	set ($key, $value, $exptime=0, $flags=0)

	validateKeyEncoding ($key)
	Ensure that a key is safe to use (contains no control characters and no characters above the ASCII range.) More...

Public Member Functions inherited from BagOStuff
	__construct (array $params=[])
	$params include: More...

	add ($key, $value, $exptime=0)

	clearLastError ()
	Clear the "last error" registry. More...

	decr ($key, $value=1)
	Decrease stored value of $key by $value while preserving its TTL. More...

	delete ($key)
	Delete an item. More...

	deleteObjectsExpiringBefore ($date, $progressCallback=false)
	Delete all objects expiring before a certain date. More...

	get ($key, $flags=0, $oldFlags=null)
	Get an item with the given key. More...

	getLastError ()
	Get the "last error" registered; clearLastError() should be called manually. More...

	getMulti (array $keys, $flags=0)
	Get an associative array containing the item for each of the keys that have items. More...

	getScopedLock ($key, $timeout=6, $expiry=30, $rclass= '')
	Get a lightweight exclusive self-unlocking lock. More...

	getWithSetCallback ($key, $ttl, $callback, $flags=0)
	Get an item with the given key, regenerating and setting it if not found. More...

	incr ($key, $value=1)
	Increase stored value of $key by $value while preserving its TTL. More...

	incrWithInit ($key, $ttl, $value=1, $init=1)
	Increase stored value of $key by $value while preserving its TTL. More...

	lock ($key, $timeout=6, $expiry=6, $rclass= '')
	Acquire an advisory lock on a key string. More...

	makeGlobalKey ()
	Make a global cache key. More...

	makeKey ()
	Make a cache key, scoped to this instance's keyspace. More...

	makeKeyInternal ($keyspace, $args)
	Construct a cache key. More...

	merge ($key, callable $callback, $exptime=0, $attempts=10, $flags=0)
	Merge changes into the existing cache value (possibly creating a new one) More...

	modifySimpleRelayEvent (array $event)
	Modify a cache update operation array for EventRelayer::notify() More...

	set ($key, $value, $exptime=0, $flags=0)
	Set an item. More...

	setDebug ($bool)

	setLogger (LoggerInterface $logger)

	setMulti (array $data, $exptime=0)
	Batch insertion. More...

	unlock ($key)
	Release an advisory lock on a key string. More...

Protected Member Functions
	applyDefaultParams ($params)
	Fill in some defaults for missing keys in $params. More...

	cas ($casToken, $key, $value, $exptime=0)

	debugLog ($text)
	Send a debug message to the log. More...

	doGet ($key, $flags=0)

	getWithToken ($key, &$casToken, $flags=0)

Protected Member Functions inherited from BagOStuff
	cas ($casToken, $key, $value, $exptime=0)
	Check and set an item. More...

	convertExpiry ($exptime)
	Convert an optionally relative time to an absolute time. More...

	convertToRelative ($exptime)
	Convert an optionally absolute expiry time to a relative time. More...

	debug ($text)

	doGet ($key, $flags=0)

	getWithToken ($key, &$casToken, $flags=0)

	isInteger ($value)
	Check if a value is an integer. More...

	mergeViaCas ($key, $callback, $exptime=0, $attempts=10)

	mergeViaLock ($key, $callback, $exptime=0, $attempts=10, $flags=0)

	setLastError ($err)
	Set the "last error" registry. More...

Protected Attributes
MemcachedClient Memcached	$client

Protected Attributes inherited from BagOStuff
callback null	$asyncHandler

string	$keyspace = 'local'

integer	$lastError = self::ERR_NONE

array[]	$locks = []
	Lock tracking. More...

LoggerInterface	$logger

Additional Inherited Members
Public Attributes inherited from BagOStuff
const	ERR_NO_RESPONSE = 1

const	ERR_NONE = 0
	Possible values for getLastError() More...

const	ERR_UNEXPECTED = 3

const	ERR_UNREACHABLE = 2

const	READ_LATEST = 1
	Bitfield constants for get()/getMulti() More...

const	READ_VERIFIED = 2

const	WRITE_CACHE_ONLY = 2

const	WRITE_SYNC = 1
	Bitfield constants for set()/merge() More...

Public Attributes inherited from IExpiringStore
const	TTL_DAY = 86400

const	TTL_HOUR = 3600

const	TTL_INDEFINITE = 0

const	TTL_MINUTE = 60

const	TTL_MONTH = 2592000

const	TTL_PROC_LONG = 30

const	TTL_PROC_SHORT = 3

const	TTL_WEEK = 604800

const	TTL_YEAR = 31536000

Detailed Description

Base class for memcached clients.

Definition at line 29 of file MemcachedBagOStuff.php.

Member Function Documentation

MemcachedBagOStuff::add	(	$key,
		$value,
		$exptime = `0`
	)

Definition at line 73 of file MemcachedBagOStuff.php.

References $value, fixExpiry(), and validateKeyEncoding().

Referenced by MemcLockManager\acquireMutexes().

MemcachedBagOStuff::applyDefaultParams ( $params )

protected

Fill in some defaults for missing keys in $params.

Parameters

array $params

Returns: array

Definition at line 39 of file MemcachedBagOStuff.php.

References $params.

Referenced by MemcachedPhpBagOStuff\__construct(), and MemcachedPeclBagOStuff\__construct().

MemcachedBagOStuff::cas	(	$casToken,
		$key,
		$value,
		$exptime = `0`
	)

protected

Definition at line 64 of file MemcachedBagOStuff.php.

References $value, fixExpiry(), and validateKeyEncoding().

MemcachedBagOStuff::debugLog ( $text )

protected

Send a debug message to the log.

Parameters

string $text

Definition at line 172 of file MemcachedBagOStuff.php.

Referenced by MemcachedPeclBagOStuff\add(), MemcachedPeclBagOStuff\cas(), MemcachedPeclBagOStuff\checkResult(), MemcachedPeclBagOStuff\decr(), MemcachedPeclBagOStuff\delete(), MemcachedPeclBagOStuff\getMulti(), MemcachedPeclBagOStuff\getWithToken(), MemcachedPeclBagOStuff\incr(), MemcachedPeclBagOStuff\set(), and MemcachedPeclBagOStuff\setMulti().

MemcachedBagOStuff::delete ( $key )

Definition at line 69 of file MemcachedBagOStuff.php.

References validateKeyEncoding().

Referenced by MemcLockManager\releaseMutexes().

MemcachedBagOStuff::doGet	(	$key,
		$flags = `0`
	)

protected

Definition at line 49 of file MemcachedBagOStuff.php.

References $flags, and getWithToken().

MemcachedBagOStuff::fixExpiry ( $expiry )

TTLs higher than 30 days will be detected as absolute TTLs (UNIX timestamps), and will result in the cache entry being discarded immediately because the expiry is in the past.

Clamp expires >30d at 30d, unless they're >=1e9 in which case they are likely to really be absolute (1e9 = 2011-09-09)

Parameters

int $expiry

Returns: int

Definition at line 161 of file MemcachedBagOStuff.php.

Referenced by add(), cas(), set(), and MemcachedPeclBagOStuff\setMulti().

MemcachedBagOStuff::getClient ( )

Get the underlying client object.

This is provided for debugging purposes.

Returns: MemcachedClient|Memcached

Definition at line 87 of file MemcachedBagOStuff.php.

References $client.

MemcachedBagOStuff::getWithToken	(		$key,
		&	$casToken,
			$flags = `0`
	)

protected

Definition at line 55 of file MemcachedBagOStuff.php.

References validateKeyEncoding().

Referenced by doGet().

MemcachedBagOStuff::makeKeyInternal	(	$keyspace,
		$args
	)

Construct a cache key.

Since: 1.27

Parameters

string	$keyspace
array	$args

Returns: string

Definition at line 99 of file MemcachedBagOStuff.php.

References $args, BagOStuff\$keyspace, and use.

MemcachedBagOStuff::merge	(		$key,
		callable	$callback,
			$exptime = `0`,
			$attempts = `10`,
			$flags = `0`
	)

Definition at line 78 of file MemcachedBagOStuff.php.

References BagOStuff\mergeViaCas().

MemcachedBagOStuff::modifySimpleRelayEvent ( array $event )

Definition at line 176 of file MemcachedBagOStuff.php.

MemcachedBagOStuff::set	(	$key,
		$value,
		$exptime = `0`,
		$flags = `0`
	)

Definition at line 59 of file MemcachedBagOStuff.php.

References $value, fixExpiry(), and validateKeyEncoding().

MemcachedBagOStuff::validateKeyEncoding ( $key )

Ensure that a key is safe to use (contains no control characters and no characters above the ASCII range.)

Parameters

string $key

Returns: string

Exceptions

Exception

Definition at line 145 of file MemcachedBagOStuff.php.

Referenced by add(), cas(), MemcachedPhpBagOStuff\decr(), delete(), MemcachedPhpBagOStuff\getMulti(), MemcachedPeclBagOStuff\getMulti(), getWithToken(), MemcachedPeclBagOStuff\getWithToken(), MemcachedPhpBagOStuff\incr(), set(), and MemcachedPeclBagOStuff\setMulti().

Member Data Documentation

MemcachedClient Memcached MemcachedBagOStuff::$client

protected

Definition at line 31 of file MemcachedBagOStuff.php.

Referenced by getClient().

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

includes/libs/objectcache/MemcachedBagOStuff.php

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

Member Data Documentation