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<?php declare(strict_types=1); |
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namespace Smr; |
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use Smr\Container\DiContainer; |
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/** |
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* Stores the current time as a fixed value. |
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* This is useful for ensuring that times are used consistently within the |
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* context of an individual page request. It does not, however, represent |
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* the start time of the request. |
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* |
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* The static methods are a convenience wrapper around the instance of this |
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* class stored in the DI container (which is set on the first query, and |
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* then remains unchanged in subsequent calls). |
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*/ |
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class Epoch { |
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private float $microtime; |
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private int $time; |
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public function __construct() { |
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$this->microtime = microtime(true); |
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$this->time = IFloor($this->microtime); |
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} |
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public function getMicrotime() : float { |
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return $this->microtime; |
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} |
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public function getTime() : int { |
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return $this->time; |
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} |
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/** |
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* Returns the instance of this class from the DI container. |
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* The first time this is called, it will populate the DI container, |
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* and this will be the time associated with the page request. |
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*/ |
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private static function getInstance() : self { |
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return DiContainer::get(self::class); |
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} |
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/** |
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* Return the time (in seconds, with microsecond-level precision) |
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* associated with a page request (i.e. stored in the DI container). |
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*/ |
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public static function microtime() : float { |
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return self::getInstance()->getMicrotime(); |
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} |
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/** |
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* Return the time (in seconds) associated with a page request |
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* (i.e. stored in the DI container). |
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*/ |
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public static function time() : int { |
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return self::getInstance()->getTime(); |
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} |
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/** |
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* Update the time associated with this page request |
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* (i.e. stored in the DI container). |
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* |
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* NOTE: This should never be called by normal page requests, and should |
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* only be used by the CLI programs that run continuously. |
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*/ |
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public static function update() : void { |
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if (!defined('NPC_SCRIPT')) { |
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throw new \Exception('Only call this function from CLI programs!'); |
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} |
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DiContainer::getContainer()->set(self::class, new self()); |
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} |
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} |
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