MediaWiki  REL1_31
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1 <?php
22 namespace Wikimedia\Rdbms;
24 use Psr\Log\LoggerInterface;
28 class LoadMonitorNull implements ILoadMonitor {
29  public function __construct(
30  ILoadBalancer $lb, BagOStuff $sCache, WANObjectCache $wCache, array $options = []
31  ) {
32  }
34  public function setLogger( LoggerInterface $logger ) {
35  }
37  public function scaleLoads( array &$loads, $domain ) {
38  }
40  public function getLagTimes( array $serverIndexes, $domain ) {
41  return array_fill_keys( $serverIndexes, 0 );
42  }
44  public function clearCaches() {
45  }
46 }
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
Definition: APACHE-LICENSE-2.0.txt:10
the array() calling protocol came about after MediaWiki 1.4rc1.
An interface for database load monitoring.
Definition: ILoadMonitor.php:35
Definition: ChronologyProtector.php:24
interface is intended to be more or less compatible with the PHP memcached client.
Definition: BagOStuff.php:47
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:37
Definition: LoadMonitorNull.php:28
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 & $options
Definition: hooks.txt:2001
setLogger(LoggerInterface $logger)
Definition: LoadMonitorNull.php:34
Multi-datacenter aware caching interface.
Definition: WANObjectCache.php:87
getLagTimes(array $serverIndexes, $domain)
Get an estimate of replication lag (in seconds) for each server.
Definition: LoadMonitorNull.php:40
__construct(ILoadBalancer $lb, BagOStuff $sCache, WANObjectCache $wCache, array $options=[])
Construct a new LoadMonitor with a given LoadBalancer parent.
Definition: LoadMonitorNull.php:29
Definition: LoadMonitorNull.php:44
Database cluster connection, tracking, load balancing, and transaction manager interface.
Definition: ILoadBalancer.php:78
scaleLoads(array &$loads, $domain)
Perform load ratio adjustment before deciding which server to use.
Definition: LoadMonitorNull.php:37