MediaWiki  1.27.2
ProfilerOutputDb.php
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1 <?php
32  private $perHost = false;
33 
35  parent::__construct( $collector, $params );
36 
37  // Initialize per-host profiling from config, back-compat if available
38  if ( isset( $this->params['perHost'] ) ) {
39  $this->perHost = $this->params['perHost'];
40  }
41  }
42 
43  public function canUse() {
44  # Do not log anything if database is readonly (bug 5375)
45  return !wfReadOnly();
46  }
47 
48  public function log( array $stats ) {
49  $pfhost = $this->perHost ? wfHostname() : '';
50 
51  try {
52  $dbw = wfGetDB( DB_MASTER );
53  $useTrx = ( $dbw->getType() === 'sqlite' ); // much faster
54  if ( $useTrx ) {
55  $dbw->startAtomic( __METHOD__ );
56  }
57  foreach ( $stats as $data ) {
58  $name = $data['name'];
59  $eventCount = $data['calls'];
60  $timeSum = (float)$data['real'];
61  $memorySum = (float)$data['memory'];
62  $name = substr( $name, 0, 255 );
63 
64  // Kludge
65  $timeSum = $timeSum >= 0 ? $timeSum : 0;
66  $memorySum = $memorySum >= 0 ? $memorySum : 0;
67 
68  $dbw->upsert( 'profiling',
69  [
70  'pf_name' => $name,
71  'pf_count' => $eventCount,
72  'pf_time' => $timeSum,
73  'pf_memory' => $memorySum,
74  'pf_server' => $pfhost
75  ],
76  [ [ 'pf_name', 'pf_server' ] ],
77  [
78  "pf_count=pf_count+{$eventCount}",
79  "pf_time=pf_time+{$timeSum}",
80  "pf_memory=pf_memory+{$memorySum}",
81  ],
82  __METHOD__
83  );
84  }
85  if ( $useTrx ) {
86  $dbw->endAtomic( __METHOD__ );
87  }
88  } catch ( DBError $e ) {
89  }
90  }
91 }
wfGetDB($db, $groups=[], $wiki=false)
Get a Database object.
Database error base class.
the array() calling protocol came about after MediaWiki 1.4rc1.
Profiler $collector
Logs profiling data into the local DB.
div flags Integer display flags(NO_ACTION_LINK, NO_EXTRA_USER_LINKS) 'LogException'returning false will NOT prevent logging $e
Definition: hooks.txt:1932
wfHostname()
Fetch server name for use in error reporting etc.
array $params
Configuration of $wgProfiler.
Base class for profiling output.
__construct(Profiler $collector, array $params)
wfReadOnly()
Check whether the wiki is in read-only mode.
bool $perHost
Whether to store host data with profiling calls.
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
Definition: distributors.txt:9
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
const DB_MASTER
Definition: Defines.php:47
log(array $stats)
Profiler base class that defines the interface and some trivial functionality.
Definition: Profiler.php:31
Allows to change the fields on the form that will be generated $name
Definition: hooks.txt:310