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Direktori : /home2/selectio/www/fms-worksuite/vendor/amphp/parallel/lib/Worker/ |
Current File : /home2/selectio/www/fms-worksuite/vendor/amphp/parallel/lib/Worker/BasicEnvironment.php |
<?php namespace Amp\Parallel\Worker; use Amp\Loop; use Amp\Struct; final class BasicEnvironment implements Environment { /** @var array */ private $data = []; /** @var \SplPriorityQueue */ private $queue; /** @var string */ private $timer; public function __construct() { $this->queue = $queue = new \SplPriorityQueue; $data = &$this->data; $this->timer = Loop::repeat(1000, static function (string $watcherId) use ($queue, &$data): void { $time = \time(); while (!$queue->isEmpty()) { list($key, $expiration) = $queue->top(); if (!isset($data[$key])) { // Item removed. $queue->extract(); continue; } $struct = $data[$key]; if ($struct->expire === 0) { // Item was set again without a TTL. $queue->extract(); continue; } if ($struct->expire !== $expiration) { // Expiration changed or TTL updated. $queue->extract(); continue; } if ($time < $struct->expire) { // Item at top has not expired, break out of loop. break; } unset($data[$key]); $queue->extract(); } if ($queue->isEmpty()) { Loop::disable($watcherId); } }); Loop::disable($this->timer); Loop::unreference($this->timer); } /** * @param string $key * * @return bool */ public function exists(string $key): bool { return isset($this->data[$key]); } /** * @param string $key * * @return mixed|null Returns null if the key does not exist. */ public function get(string $key) { if (!isset($this->data[$key])) { return null; } $struct = $this->data[$key]; if ($struct->ttl !== null) { $expire = \time() + $struct->ttl; if ($struct->expire < $expire) { $struct->expire = $expire; $this->queue->insert([$key, $struct->expire], -$struct->expire); } } return $struct->data; } /** * @param string $key * @param mixed $value Using null for the value deletes the key. * @param int $ttl Number of seconds until data is automatically deleted. Use null for unlimited TTL. * * @throws \Error If the time-to-live is not a positive integer. */ public function set(string $key, $value, int $ttl = null): void { if ($value === null) { $this->delete($key); return; } if ($ttl !== null && $ttl <= 0) { throw new \Error("The time-to-live must be a positive integer or null"); } $struct = new class { use Struct; public $data; public $expire = 0; public $ttl; }; $struct->data = $value; if ($ttl !== null) { $struct->ttl = $ttl; $struct->expire = \time() + $ttl; $this->queue->insert([$key, $struct->expire], -$struct->expire); Loop::enable($this->timer); } $this->data[$key] = $struct; } /** * @param string $key */ public function delete(string $key): void { unset($this->data[$key]); } /** * Alias of exists(). * * @param $key * * @return bool */ public function offsetExists($key): bool { return $this->exists($key); } /** * Alias of get(). * * @param string $key * * @return mixed */ #[\ReturnTypeWillChange] public function offsetGet($key) { return $this->get($key); } /** * Alias of set() with $ttl = null. * * @param string $key * @param mixed $value */ public function offsetSet($key, $value): void { $this->set($key, $value); } /** * Alias of delete(). * * @param string $key */ public function offsetUnset($key): void { $this->delete($key); } /** * Removes all values. */ public function clear(): void { $this->data = []; Loop::disable($this->timer); $this->queue = new \SplPriorityQueue; } }