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	ArrayCache.php	5.59 MB		View DL Edit
	CacheInterface.php	8.05 MB		View DL Edit

Edit file: /opt/cpanel/ea-wappspector/vendor/rector/rector/vendor/react/cache/src/ArrayCache.php

<?php

namespace RectorPrefix202411\React\Cache;

use RectorPrefix202411\React\Promise;
use RectorPrefix202411\React\Promise\PromiseInterface;
class ArrayCache implements CacheInterface
{
    private $limit;
    private $data = array();
    private $expires = array();
    private $supportsHighResolution;
    /**
     * The `ArrayCache` provides an in-memory implementation of the [`CacheInterface`](#cacheinterface).
     *
     * ```php
     * $cache = new ArrayCache();
     *
     * $cache->set('foo', 'bar');
     * ```
     *
     * Its constructor accepts an optional `?int $limit` parameter to limit the
     * maximum number of entries to store in the LRU cache. If you add more
     * entries to this instance, it will automatically take care of removing
     * the one that was least recently used (LRU).
     *
     * For example, this snippet will overwrite the first value and only store
     * the last two entries:
     *
     * ```php
     * $cache = new ArrayCache(2);
     *
     * $cache->set('foo', '1');
     * $cache->set('bar', '2');
     * $cache->set('baz', '3');
     * ```
     *
     * This cache implementation is known to rely on wall-clock time to schedule
     * future cache expiration times when using any version before PHP 7.3,
     * because a monotonic time source is only available as of PHP 7.3 (`hrtime()`).
     * While this does not affect many common use cases, this is an important
     * distinction for programs that rely on a high time precision or on systems
     * that are subject to discontinuous time adjustments (time jumps).
     * This means that if you store a cache item with a TTL of 30s on PHP < 7.3
     * and then adjust your system time forward by 20s, the cache item may
     * expire in 10s. See also [`set()`](#set) for more details.
     *
     * @param int|null $limit maximum number of entries to store in the LRU cache
     */
    public function __construct($limit = null)
    {
        $this->limit = $limit;
        // prefer high-resolution timer, available as of PHP 7.3+
        $this->supportsHighResolution = \function_exists('hrtime');
    }
    public function get($key, $default = null)
    {
        // delete key if it is already expired => below will detect this as a cache miss
        if (isset($this->expires[$key]) && $this->now() - $this->expires[$key] > 0) {
            unset($this->data[$key], $this->expires[$key]);
        }
        if (!\array_key_exists($key, $this->data)) {
            return Promise\resolve($default);
        }
        // remove and append to end of array to keep track of LRU info
        $value = $this->data[$key];
        unset($this->data[$key]);
        $this->data[$key] = $value;
        return Promise\resolve($value);
    }
    public function set($key, $value, $ttl = null)
    {
        // unset before setting to ensure this entry will be added to end of array (LRU info)
        unset($this->data[$key]);
        $this->data[$key] = $value;
        // sort expiration times if TTL is given (first will expire first)
        unset($this->expires[$key]);
        if ($ttl !== null) {
            $this->expires[$key] = $this->now() + $ttl;
            \asort($this->expires);
        }
        // ensure size limit is not exceeded or remove first entry from array
        if ($this->limit !== null && \count($this->data) > $this->limit) {
            // first try to check if there's any expired entry
            // expiration times are sorted, so we can simply look at the first one
            \reset($this->expires);
            $key = \key($this->expires);
            // check to see if the first in the list of expiring keys is already expired
            // if the first key is not expired, we have to overwrite by using LRU info
            if ($key === null || $this->now() - $this->expires[$key] < 0) {
                \reset($this->data);
                $key = \key($this->data);
            }
            unset($this->data[$key], $this->expires[$key]);
        }
        return Promise\resolve(\true);
    }
    public function delete($key)
    {
        unset($this->data[$key], $this->expires[$key]);
        return Promise\resolve(\true);
    }
    public function getMultiple(array $keys, $default = null)
    {
        $values = array();
        foreach ($keys as $key) {
            $values[$key] = $this->get($key, $default);
        }
        return Promise\all($values);
    }
    public function setMultiple(array $values, $ttl = null)
    {
        foreach ($values as $key => $value) {
            $this->set($key, $value, $ttl);
        }
        return Promise\resolve(\true);
    }
    public function deleteMultiple(array $keys)
    {
        foreach ($keys as $key) {
            unset($this->data[$key], $this->expires[$key]);
        }
        return Promise\resolve(\true);
    }
    public function clear()
    {
        $this->data = array();
        $this->expires = array();
        return Promise\resolve(\true);
    }
    public function has($key)
    {
        // delete key if it is already expired
        if (isset($this->expires[$key]) && $this->now() - $this->expires[$key] > 0) {
            unset($this->data[$key], $this->expires[$key]);
        }
        if (!\array_key_exists($key, $this->data)) {
            return Promise\resolve(\false);
        }
        // remove and append to end of array to keep track of LRU info
        $value = $this->data[$key];
        unset($this->data[$key]);
        $this->data[$key] = $value;
        return Promise\resolve(\true);
    }
    /**
     * @return float
     */
    private function now()
    {
        return $this->supportsHighResolution ? \hrtime(\true) * 1.0E-9 : \microtime(\true);
    }
}

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