PhabricatorCacheGeneralGarbageCollector.php
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	<?php

	final class PhabricatorCacheGeneralGarbageCollector
	extends PhabricatorGarbageCollector {

	const COLLECTORCONST = 'cache.general';

	public function getCollectorName() {
	return pht('General Cache');
	}

	public function getDefaultRetentionPolicy() {
	return phutil_units('30 days in seconds');
	}

	protected function collectGarbage() {
	$cache = new PhabricatorKeyValueDatabaseCache();
	$conn_w = $cache->establishConnection('w');

	queryfx(
	$conn_w,
	'DELETE FROM %T WHERE cacheCreated < %d
	ORDER BY cacheCreated ASC LIMIT 100',
	$cache->getTableName(),
	$this->getGarbageEpoch());

	return ($conn_w->getAffectedRows() == 100);
	}

	}