MediaWiki  master
CachedBagOStuff.php
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1 <?php
39  protected $backend;
40 
45  function __construct( BagOStuff $backend, $params = [] ) {
46  unset( $params['reportDupes'] ); // useless here
47 
48  parent::__construct( $params );
49 
50  $this->backend = $backend;
51  $this->attrMap = $backend->attrMap;
52  }
53 
54  public function get( $key, $flags = 0 ) {
55  $ret = parent::get( $key, $flags );
56  if ( $ret === false && !$this->hasKey( $key ) ) {
57  $ret = $this->backend->get( $key, $flags );
58  $this->set( $key, $ret, 0, self::WRITE_CACHE_ONLY );
59  }
60  return $ret;
61  }
62 
63  public function set( $key, $value, $exptime = 0, $flags = 0 ) {
64  parent::set( $key, $value, $exptime, $flags );
65  if ( !( $flags & self::WRITE_CACHE_ONLY ) ) {
66  $this->backend->set( $key, $value, $exptime, $flags & ~self::WRITE_CACHE_ONLY );
67  }
68  return true;
69  }
70 
71  public function delete( $key, $flags = 0 ) {
72  parent::delete( $key, $flags );
73  if ( !( $flags & self::WRITE_CACHE_ONLY ) ) {
74  $this->backend->delete( $key );
75  }
76 
77  return true;
78  }
79 
80  public function setDebug( $bool ) {
81  parent::setDebug( $bool );
82  $this->backend->setDebug( $bool );
83  }
84 
85  public function deleteObjectsExpiringBefore( $date, $progressCallback = false ) {
86  parent::deleteObjectsExpiringBefore( $date, $progressCallback );
87  return $this->backend->deleteObjectsExpiringBefore( $date, $progressCallback );
88  }
89 
90  public function makeKeyInternal( $keyspace, $args ) {
91  return $this->backend->makeKeyInternal( ...func_get_args() );
92  }
93 
94  public function makeKey( $class, $component = null ) {
95  return $this->backend->makeKey( ...func_get_args() );
96  }
97 
98  public function makeGlobalKey( $class, $component = null ) {
99  return $this->backend->makeGlobalKey( ...func_get_args() );
100  }
101 
102  // These just call the backend (tested elsewhere)
103  // @codeCoverageIgnoreStart
104 
105  public function add( $key, $value, $exptime = 0, $flags = 0 ) {
106  if ( $this->get( $key ) === false ) {
107  return $this->set( $key, $value, $exptime, $flags );
108  }
109 
110  return false; // key already set
111  }
112 
113  public function incr( $key, $value = 1 ) {
114  $n = $this->backend->incr( $key, $value );
115  parent::delete( $key );
116 
117  return $n;
118  }
119 
120  public function lock( $key, $timeout = 6, $expiry = 6, $rclass = '' ) {
121  return $this->backend->lock( $key, $timeout, $expiry, $rclass );
122  }
123 
124  public function unlock( $key ) {
125  return $this->backend->unlock( $key );
126  }
127 
128  public function getLastError() {
129  return $this->backend->getLastError();
130  }
131 
132  public function clearLastError() {
133  return $this->backend->clearLastError();
134  }
135 
136  // @codeCoverageIgnoreEnd
137 }
makeGlobalKey( $class, $component=null)
hasKey( $key)
Does this bag have a non-null value for the given key?
null means default in associative array with keys and values unescaped Should be merged with default with a value of false meaning to suppress the attribute in associative array with keys and values unescaped noclasses & $ret
Definition: hooks.txt:1982
$value
makeKeyInternal( $keyspace, $args)
string $keyspace
Definition: BagOStuff.php:70
if( $line===false) $args
Definition: cdb.php:64
add( $key, $value, $exptime=0, $flags=0)
incr( $key, $value=1)
$params
this hook is for auditing only or null if authentication failed before getting that far or null if we can t even determine that When $user is not null
Definition: hooks.txt:780
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition: injection.txt:35
makeKey( $class, $component=null)
deleteObjectsExpiringBefore( $date, $progressCallback=false)
lock( $key, $timeout=6, $expiry=6, $rclass='')
__construct(BagOStuff $backend, $params=[])