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Editing: APCu.php

<?php

/**
 * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
 * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
 * SPDX-License-Identifier: AGPL-3.0-only
 */
namespace OC\Memcache;

use bantu\IniGetWrapper\IniGetWrapper;
use OCP\IMemcache;

class APCu extends Cache implements IMemcache {
	use CASTrait {
		cas as casEmulated;
	}

use CADTrait;

public function get($key) {
		$result = apcu_fetch($this->getPrefix() . $key, $success);
		if (!$success) {
			return null;
		}
		return $result;
	}

public function set($key, $value, $ttl = 0) {
		if ($ttl === 0) {
			$ttl = self::DEFAULT_TTL;
		}
		return apcu_store($this->getPrefix() . $key, $value, $ttl);
	}

public function hasKey($key) {
		return apcu_exists($this->getPrefix() . $key);
	}

public function remove($key) {
		return apcu_delete($this->getPrefix() . $key);
	}

public function clear($prefix = '') {
		$ns = $this->getPrefix() . $prefix;
		$ns = preg_quote($ns, '/');
		if (class_exists('\APCIterator')) {
			$iter = new \APCIterator('user', '/^' . $ns . '/', APC_ITER_KEY);
		} else {
			$iter = new \APCUIterator('/^' . $ns . '/', APC_ITER_KEY);
		}
		return apcu_delete($iter);
	}

/**
	 * Set a value in the cache if it's not already stored
	 *
	 * @param string $key
	 * @param mixed $value
	 * @param int $ttl Time To Live in seconds. Defaults to 60*60*24
	 * @return bool
	 */
	public function add($key, $value, $ttl = 0) {
		if ($ttl === 0) {
			$ttl = self::DEFAULT_TTL;
		}
		return apcu_add($this->getPrefix() . $key, $value, $ttl);
	}

/**
	 * Increase a stored number
	 *
	 * @param string $key
	 * @param int $step
	 * @return int | bool
	 */
	public function inc($key, $step = 1) {
		$success = null;
		return apcu_inc($this->getPrefix() . $key, $step, $success, self::DEFAULT_TTL);
	}

/**
	 * Decrease a stored number
	 *
	 * @param string $key
	 * @param int $step
	 * @return int | bool
	 */
	public function dec($key, $step = 1) {
		return apcu_exists($this->getPrefix() . $key)
			? apcu_dec($this->getPrefix() . $key, $step)
			: false;
	}

/**
	 * Compare and set
	 *
	 * @param string $key
	 * @param mixed $old
	 * @param mixed $new
	 * @return bool
	 */
	public function cas($key, $old, $new) {
		// apc only does cas for ints
		if (is_int($old) && is_int($new)) {
			return apcu_cas($this->getPrefix() . $key, $old, $new);
		} else {
			return $this->casEmulated($key, $old, $new);
		}
	}

public static function isAvailable(): bool {
		if (!extension_loaded('apcu')) {
			return false;
		} elseif (!\OC::$server->get(IniGetWrapper::class)->getBool('apc.enabled')) {
			return false;
		} elseif (!\OC::$server->get(IniGetWrapper::class)->getBool('apc.enable_cli') && \OC::$CLI) {
			return false;
		} elseif (version_compare(phpversion('apcu') ?: '0.0.0', '5.1.0') === -1) {
			return false;
		} else {
			return true;
		}
	}
}

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