69 public static function singleton( $domain =
false ) {
76 if ( !isset( self::$instances[
$domain] ) ) {
85 self::$instances[$domain]->invalidWiki =
true;
89 return self::$instances[$domain];
98 self::$instances = [];
110 $conf = [
'wiki' => $this->domain,
'type' =>
$type ];
117 if ( !isset( $conf[
'readOnlyReason'] ) ) {
118 $conf[
'readOnlyReason'] = $this->readOnlyReason;
134 public function push( $jobs ) {
137 if ( $this->invalidWiki ) {
139 $e =
new LogicException(
"Domain '{$this->domain}' is not recognized." );
140 MWExceptionHandler::logException(
$e );
144 $jobs = is_array( $jobs ) ? $jobs : [ $jobs ];
145 if ( !count( $jobs ) ) {
152 foreach ( $jobs
as $job ) {
153 $jobsByType[
$job->getType()][] =
$job;
156 foreach ( $jobsByType
as $type => $jobs ) {
160 if ( $this->
cache->hasField(
'queues-ready',
'list' ) ) {
161 $list = $this->
cache->getField(
'queues-ready',
'list' );
162 if ( count( array_diff( array_keys( $jobsByType ), $list ) ) ) {
163 $this->
cache->clear(
'queues-ready' );
167 $cache = ObjectCache::getLocalClusterInstance();
169 $cache->makeGlobalKey(
'jobqueue', $this->domain,
'hasjobs', self::TYPE_ANY ),
175 $cache->makeGlobalKey(
'jobqueue', $this->domain,
'hasjobs', self::TYPE_DEFAULT ),
194 if ( $this->invalidWiki ) {
196 throw new LogicException(
"Domain '{$this->domain}' is not recognized." );
199 if ( PHP_SAPI ===
'cli' || PHP_SAPI ===
'phpdbg' ) {
200 $this->
push( $jobs );
204 $jobs = is_array( $jobs ) ? $jobs : [ $jobs ];
234 public function pop( $qtype = self::TYPE_DEFAULT, $flags = 0,
array $blacklist = [] ) {
237 if ( is_string( $qtype ) ) {
238 if ( !in_array( $qtype, $blacklist ) ) {
239 $job = $this->
get( $qtype )->
pop();
242 if ( $flags & self::USE_CACHE ) {
243 if ( !$this->
cache->hasField(
'queues-ready',
'list', self::PROC_CACHE_TTL ) ) {
246 $types = $this->
cache->getField(
'queues-ready',
'list' );
251 if ( $qtype == self::TYPE_DEFAULT ) {
255 $types = array_diff( $types, $blacklist );
263 $this->
cache->clear(
'queues-ready' );
336 $cache = ObjectCache::getLocalClusterInstance();
337 $key =
$cache->makeGlobalKey(
'jobqueue', $this->domain,
'hasjobs',
$type );
342 if (
$type == self::TYPE_DEFAULT ) {
345 $value = count( $queues ) ?
'true' :
'false';
349 return (
$value ===
'true' );
360 $nonEmpty = $info[
'queue']->getSiblingQueuesWithJobs( $this->
getQueueTypes() );
361 if ( is_array( $nonEmpty ) ) {
362 $types = array_merge( $types, $nonEmpty );
364 foreach ( $info[
'types']
as $type ) {
365 if ( !$this->
get( $type )->isEmpty() ) {
383 $sizes = $info[
'queue']->getSiblingQueueSizes( $this->
getQueueTypes() );
384 if ( is_array( $sizes ) ) {
385 $sizeMap = $sizeMap + $sizes;
387 foreach ( $info[
'types']
as $type ) {
388 $sizeMap[
$type] = $this->
get(
$type )->getSize();
402 if ( $this->coalescedQueues ===
null ) {
403 $this->coalescedQueues = [];
406 [
'wiki' => $this->domain,
'type' =>
'null' ] + $conf );
407 $loc =
$queue->getCoalesceLocationInternal();
408 if ( !isset( $this->coalescedQueues[$loc] ) ) {
409 $this->coalescedQueues[$loc][
'queue'] =
$queue;
410 $this->coalescedQueues[$loc][
'types'] = [];
412 if (
$type ===
'default' ) {
413 $this->coalescedQueues[$loc][
'types'] = array_merge(
414 $this->coalescedQueues[$loc][
'types'],
418 $this->coalescedQueues[$loc][
'types'][] =
$type;
423 return $this->coalescedQueues;
436 $cache = ObjectCache::getMainWANInstance();
438 $cache->makeGlobalKey(
'jobqueue',
'configvalue', $this->domain,
$name ),
439 $cache::TTL_DAY + mt_rand( 0, $cache::TTL_DAY ),
445 [
'pcTTL' => WANObjectCache::TTL_PROC_LONG ]
457 foreach ( $jobs
as $job ) {
459 throw new InvalidArgumentException(
"Expected IJobSpecification objects" );
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
$wgJobTypeConf
Map of job types to configuration arrays.
$wgLocalDatabases
Other wikis on this site, can be administered from a single developer account.
$wgJobTypesExcludedFromDefaultQueue
Jobs that must be explicitly requested, i.e.
$wgConf
wgConf hold the site configuration.
wfConfiguredReadOnlyReason()
Get the value of $wgReadOnly or the contents of $wgReadOnlyFile.
wfDeprecated( $function, $version=false, $component=false, $callerOffset=2)
Throws a warning that $function is deprecated.
Enqueue lazy-pushed jobs that have accumulated from JobQueueGroup.
Class to handle enqueueing of background jobs.
getCachedConfigVar( $name)
push( $jobs)
Insert jobs into the respective queues of which they belong.
string $domain
Wiki DB domain ID.
getQueueSizes()
Get the size of the queus for a list of job types.
ack(Job $job)
Acknowledge that a job was completed.
static pushLazyJobs()
Push all jobs buffered via lazyPush() into their respective queues.
waitForBackups()
Wait for any replica DBs or backup queue servers to catch up.
deduplicateRootJob(Job $job)
Register the "root job" of a given job into the queue for de-duplication.
array $coalescedQueues
Map of (bucket => (queue => JobQueue, types => list of types)
static singleton( $domain=false)
bool $invalidWiki
Whether the wiki is not recognized in configuration.
string bool $readOnlyReason
Read only rationale (or false if r/w)
getDefaultQueueTypes()
Get the list of default queue types.
lazyPush( $jobs)
Buffer jobs for insertion via push() or call it now if in CLI mode.
pop( $qtype=self::TYPE_DEFAULT, $flags=0, array $blacklist=[])
Pop a job off one of the job queues.
static destroySingletons()
Destroy the singleton instances.
queuesHaveJobs( $type=self::TYPE_ANY)
Check if there are any queues with jobs (this is cached)
__construct( $domain, $readOnlyReason)
static JobQueueGroup[] $instances
getQueuesWithJobs()
Get the list of job types that have non-empty queues.
assertValidJobs(array $jobs)
getQueueTypes()
Get the list of queue types.
static factory(array $params)
Get a job queue object of the specified type.
Class to both describe a background job and handle jobs.
Handles a simple LRU key/value map with a maximum number of entries.
Class for process caching individual properties of expiring items.
static getCurrentWikiDbDomain()
static getWikiIdFromDomain( $domain)
Get the wiki ID of a database domain.
static isCurrentWikiDbDomain( $domain)
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
Allows to change the fields on the form that will be generated $name
returning false will NOT prevent logging $e
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
Job queue task description interface.
you have access to all of the normal MediaWiki so you can get a DB use the cache
The wiki should then use memcached to cache various data To use multiple just add more items to the array To increase the weight of a make its entry a array("192.168.0.1:11211", 2))
if(count( $args)< 1) $job