Wikibase\Repo\PidLock Class Reference

Utility class for process identifier (PID) locking. More...

Public Member Functions
	__construct ( $module, $wikiId)
	getLock ( $force=false)
	Tries to allocate a process identifier based lock for the process, to avoid running more than one instance. More...
	removeLock ()
	Remove the process identifier lock. More...

Private Member Functions
	isAlive ( $pid)
	Check the given process identifier to see if it is alive. More...
	getStateFile ()
	Generate a name and path for a file to store some kind of state in. More...

Private Attributes
	$module
	$wikiId

Detailed Description

Utility class for process identifier (PID) locking.

Copyright

GPL-2.0-or-later

Constructor & Destructor Documentation

__construct()

Wikibase\Repo\PidLock::__construct	(		$module,
			$wikiId
	)

Parameters

string	$module	used as a basis for the file name.
string	$wikiId	the wiki's id, used for per-wiki file names.

Member Function Documentation

getLock()

Wikibase\Repo\PidLock::getLock

(

$force = false

)

Tries to allocate a process identifier based lock for the process, to avoid running more than one instance.

Note that this method creates the file if necessary.

Parameters

bool

$force

make the function skip the test and always grab the lock

Returns

bool true if we got the lock, i.e. if no instance is already running, or $force was set.

getStateFile()

Wikibase\Repo\PidLock::getStateFile ( )

private

Generate a name and path for a file to store some kind of state in.

Returns

string File path

isAlive()

Wikibase\Repo\PidLock::isAlive (   $pid )

private

Check the given process identifier to see if it is alive.

Parameters

int

$pid

the process identifier to check

Returns

bool true if the process exist

removeLock()

Wikibase\Repo\PidLock::removeLock

(

)

Remove the process identifier lock.

Assumes that we hold it.

Returns

bool Success

Member Data Documentation

$module

Wikibase\Repo\PidLock::$module

private

$wikiId

Wikibase\Repo\PidLock::$wikiId

private

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

• repo/includes/PidLock.php