/**
* Attempt to process a chunk from the queue.
*
* @param bool $log
* (optional) Whether diagnostic failure should be logged or not.
*/
protected function processQueueChunk($log = TRUE)
{
// Test if the diagnostic tests prohibit purging the queue.
if (!_acquia_purge_are_we_allowed_to_purge()) {
if ($log) {
$err = _acquia_purge_get_diagnosis(ACQUIA_PURGE_SEVLEVEL_ERROR);
_acquia_purge_get_diagnosis_logged($err);
}
return;
}
// Acquire a lock and process a chunk from the queue.
if ($this->service->lockAcquire()) {
$this->service->process();
$this->service->lockRelease();
}
}
/**
* Determine if the processor should run.
*
* @param AcquiaPurgeService $service
* The Acquia Purge service object.
*
* @return bool
* Either TRUE or FALSE.
*/
public static function isUserOwningTheQueue(AcquiaPurgeService $service)
{
// Anonymous users can never process the queue.
if (!user_is_logged_in()) {
return FALSE;
}
// Retrieve the list of user names owning an ongoing purge process.
$uiusers = $service->state()->get('uiusers', array())->get();
// If the uiusers list is empty, that means no active purges are ongoing.
if (!count($uiusers)) {
return FALSE;
}
// Is the current user one of the uiusers of the actively ongoing purge?
global $user;
if (!in_array($user->name, $uiusers)) {
return FALSE;
}
// Are we running on a Acquia Cloud environment?
if (!_acquia_purge_are_we_on_acquiacloud()) {
return FALSE;
}
// All tests passed, this user can process the queue.
return TRUE;
}