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<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OCA\Settings\SetupChecks;
use OC\Memcache\APCu;
use OCP\IConfig;
use OCP\IL10N;
use OCP\SetupCheck\ISetupCheck;
use OCP\SetupCheck\SetupResult;
class PhpApcuConfig implements ISetupCheck {
public const USAGE_RATE_WARNING = 90;
public const AGE_WARNING = 3600 * 8;
public function __construct(
private IL10N $l10n,
private IConfig $config,
) {
}
public function getCategory(): string {
return 'php';
}
public function getName(): string {
return $this->l10n->t('PHP APCu configuration');
}
public function run(): SetupResult {
$localIsApcu = ltrim($this->config->getSystemValueString('memcache.local'), '\\') === APCu::class;
$distributedIsApcu = ltrim($this->config->getSystemValueString('memcache.distributed'), '\\') === APCu::class;
if (!$localIsApcu && !$distributedIsApcu) {
return SetupResult::success();
}
if (!APCu::isAvailable()) {
return SetupResult::success();
}
$cache = apcu_cache_info(true);
$mem = apcu_sma_info(true);
if ($cache === false || $mem === false) {
return SetupResult::success();
}
$expunges = $cache['expunges'];
$memSize = $mem['num_seg'] * $mem['seg_size'];
$memAvailable = $mem['avail_mem'];
$memUsed = $memSize - $memAvailable;
$usageRate = round($memUsed / $memSize * 100, 0);
$elapsed = max(time() - $cache['start_time'], 1);
if ($expunges > 0 && $elapsed < self::AGE_WARNING) {
return SetupResult::warning($this->l10n->t('Your APCu cache has been running full, consider increasing the apc.shm_size php setting.'));
}
if ($usageRate > self::USAGE_RATE_WARNING) {
return SetupResult::warning($this->l10n->t('Your APCu cache is almost full at %s%%, consider increasing the apc.shm_size php setting.', [$usageRate]));
}
return SetupResult::success();
}
}
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