MediaWiki  REL1_31
HashBagOStuff Class Reference

Simple store for keeping values in an associative array for the current process. More...

Inheritance diagram for HashBagOStuff:
Collaboration diagram for HashBagOStuff:

Public Member Functions

 __construct ( $params=[])
 
 clear ()
 
 delete ( $key)
 Delete an item. More...
 
 set ( $key, $value, $exptime=0, $flags=0)
 Set an item. More...
 
- Public Member Functions inherited from BagOStuff
 __construct (array $params=[])
 $params include: More...
 
 add ( $key, $value, $exptime=0)
 
 addBusyCallback (callable $workCallback)
 Let a callback be run to avoid wasting time on special blocking calls. More...
 
 changeTTL ( $key, $expiry=0)
 Reset the TTL on a key if it exists. More...
 
 clearLastError ()
 Clear the "last error" registry. More...
 
 decr ( $key, $value=1)
 Decrease stored value of $key by $value while preserving its TTL. 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...
 
 getQoS ( $flag)
 
 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 ( $class, $component=null)
 Make a global cache key. More...
 
 makeKey ( $class, $component=null)
 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...
 
 setDebug ( $bool)
 
 setLogger (LoggerInterface $logger)
 
 setMockTime (&$time)
 
 setMulti (array $data, $exptime=0)
 Batch insertion. More...
 
 unlock ( $key)
 Release an advisory lock on a key string. More...
 

Public Attributes

const KEY_EXP = 1
 
const KEY_VAL = 0
 
- 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 ATTR_EMULATION = 1
 
const ATTR_SYNCWRITES = 2
 
const QOS_EMULATION_SQL = 1
 
const QOS_SYNCWRITES_BE = 2
 
const QOS_SYNCWRITES_NONE = 1
 
const QOS_SYNCWRITES_QC = 3
 
const QOS_SYNCWRITES_SS = 4
 
const QOS_UNKNOWN = INF
 
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_SECOND = 1
 
const TTL_WEEK = 604800
 
const TTL_YEAR = 31536000
 

Protected Member Functions

 doGet ( $key, $flags=0)
 
 expire ( $key)
 
 hasKey ( $key)
 Does this bag have a non-null value for the given key? More...
 
- 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)
 
 getCurrentTime ()
 
 getWithToken ( $key, &$casToken, $flags=0)
 
 isInteger ( $value)
 Check if a value is an integer. More...
 
 mergeFlagMaps (array $bags)
 Merge the flag maps of one or more BagOStuff objects into a "lowest common denominator" map. 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

mixed[] $bag = []
 
int $maxCacheKeys
 Max entries allowed. More...
 
- Protected Attributes inherited from BagOStuff
callback null $asyncHandler
 
int[] $attrMap = []
 Map of (ATTR_* class constant => QOS_* class constant) More...
 
callable[] $busyCallbacks = []
 
string $keyspace = 'local'
 
int $lastError = self::ERR_NONE
 ERR_* class constant. More...
 
array[] $locks = []
 Lock tracking. More...
 
LoggerInterface $logger
 
int $syncTimeout
 Seconds. More...
 

Detailed Description

Simple store for keeping values in an associative array for the current process.

Data will not persist and is not shared with other processes.

Definition at line 31 of file HashBagOStuff.php.

Constructor & Destructor Documentation

◆ __construct()

HashBagOStuff::__construct (   $params = [])
Parameters
array$paramsAdditional parameters include:
  • maxKeys : only allow this many keys (using oldest-first eviction)

Definition at line 44 of file HashBagOStuff.php.

References $params.

Member Function Documentation

◆ clear()

HashBagOStuff::clear ( )

Definition at line 115 of file HashBagOStuff.php.

Referenced by Title\clearCaches().

◆ delete()

HashBagOStuff::delete (   $key)

Delete an item.

Parameters
string$key
Returns
bool True if the item was deleted or not found, false on failure

Reimplemented from BagOStuff.

Definition at line 109 of file HashBagOStuff.php.

◆ doGet()

HashBagOStuff::doGet (   $key,
  $flags = 0 
)
protected
Parameters
string$key
int$flagsBitfield of BagOStuff::READ_* constants [optional]
Returns
mixed Returns false on failure and if the item does not exist

Reimplemented from BagOStuff.

Reimplemented in CachedBagOStuff.

Definition at line 75 of file HashBagOStuff.php.

References expire(), hasKey(), and KEY_VAL.

◆ expire()

HashBagOStuff::expire (   $key)
protected

Definition at line 53 of file HashBagOStuff.php.

References BagOStuff\getCurrentTime(), and KEY_EXP.

Referenced by doGet().

◆ hasKey()

HashBagOStuff::hasKey (   $key)
protected

Does this bag have a non-null value for the given key?

Parameters
string$key
Returns
bool
Since
1.27

Definition at line 71 of file HashBagOStuff.php.

Referenced by CachedBagOStuff\doGet(), and doGet().

◆ set()

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

Set an item.

Parameters
string$key
mixed$value
int$exptimeEither an interval in seconds or a unix timestamp for expiry
int$flagsBitfield of BagOStuff::WRITE_* constants
Returns
bool Success

Reimplemented from BagOStuff.

Reimplemented in CachedBagOStuff.

Definition at line 92 of file HashBagOStuff.php.

References $value, BagOStuff\convertExpiry(), and key.

Referenced by Title\newFromTextThrow().

Member Data Documentation

◆ $bag

mixed [] HashBagOStuff::$bag = []
protected

Definition at line 33 of file HashBagOStuff.php.

◆ $maxCacheKeys

int HashBagOStuff::$maxCacheKeys
protected

Max entries allowed.

Definition at line 35 of file HashBagOStuff.php.

◆ KEY_EXP

const HashBagOStuff::KEY_EXP = 1

Definition at line 38 of file HashBagOStuff.php.

Referenced by expire().

◆ KEY_VAL

const HashBagOStuff::KEY_VAL = 0

Definition at line 37 of file HashBagOStuff.php.

Referenced by doGet().


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