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<?php |
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namespace Bedd\Timer; |
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/** |
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* Timer |
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* |
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* Inspired by https://github.com/jsanc623/PHPBenchTime |
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*/ |
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class Timer |
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{ |
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/** |
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* Status: initialized |
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* |
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* @var int |
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*/ |
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const STATUS_INITIALIZED = 0; |
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/** |
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* Status: running |
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* |
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* @var int |
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*/ |
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const STATUS_RUNNING = 1; |
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/** |
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* Status: paused |
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* |
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* @var int |
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*/ |
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const STATUS_PAUSED = 2; |
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/** |
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* Status: ended |
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* |
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* @var int |
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*/ |
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const STATUS_ENDED = 3; |
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/** |
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* Status |
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* |
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* @var int |
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*/ |
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protected $status = null; |
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/** |
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* Starttime |
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* |
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* @var float |
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*/ |
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private $startTime = 0.0; |
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/** |
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* Endtime |
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* |
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* @var float |
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*/ |
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private $endTime = 0.0; |
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/** |
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* Paused time |
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* |
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* @var float |
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*/ |
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private $pauseTime = 0.0; |
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/** |
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* Total pause time |
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* |
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* @var float |
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*/ |
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private $totalPauseTime = 0.0; |
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/** |
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* List of laps |
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* |
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* @var array |
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*/ |
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private $laps = []; |
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/** |
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* List of Timer |
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* |
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* @var Timer[] |
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*/ |
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private static $timers = []; |
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/** |
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* constructor |
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*/ |
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public function __construct() |
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{ |
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$this->reset(); |
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} |
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/** |
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* Creates and/or return a Timer instance |
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* |
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* @param string $name |
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* |
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* @throws \InvalidArgumentException |
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* |
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* @return Timer |
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*/ |
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public static function getInstance($name) |
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{ |
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if (!is_string($name)) { |
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throw new \InvalidArgumentException('$name should be a string. a '.gettype($name).' is given.'); |
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} |
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if (!isset(self::$timers[$name])) { |
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self::$timers[$name] = new self(); |
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} |
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return self::$timers[$name]; |
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} |
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/** |
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* Starts the timer |
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* |
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* @param string $name |
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* |
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* @throws \LogicException |
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*/ |
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public function start($name = 'start') |
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{ |
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if ($this->getStatus() !== self::STATUS_INITIALIZED) { |
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throw new \LogicException('Only initialied timmers could start. The actually status is '.$this->getStatus()); |
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} |
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$this->startTime = $this->getCurrentTime(); |
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$this->addLap($name); |
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} |
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/** |
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* Ends the timer |
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* |
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* @throws \LogicException |
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*/ |
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public function end() |
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{ |
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if ($this->getStatus() !== self::STATUS_RUNNING) { |
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throw new \LogicException('Only running timmers could end. The actually status is '.$this->getStatus()); |
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} |
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$this->endTime = $this->getCurrentTime(); |
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$this->status = self::STATUS_ENDED; |
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$this->endLap(); |
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} |
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/** |
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* Starts a new lap |
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* |
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* @param string $name Name of the lap |
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*/ |
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public function addLap($name = null) |
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{ |
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$this->endLap(); |
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$this->status = self::STATUS_RUNNING; |
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$this->laps[] = [ |
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'name' => $name ? $name : count($this->laps) + 1, |
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'start' => $this->getCurrentTime(), |
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'end' => -1, |
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'total' => -1, |
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]; |
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} |
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/** |
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* Ends a lap |
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*/ |
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protected function endLap() |
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{ |
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if (empty($this->laps)) { |
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return; |
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} |
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$lapIndex = count($this->laps) - 1; |
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$this->laps[$lapIndex]['end'] = $this->getCurrentTime(); |
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$this->laps[$lapIndex]['total'] = $this->laps[$lapIndex]['end'] - $this->laps[$lapIndex]['start']; |
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} |
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/** |
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* Reset the Timer |
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*/ |
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public function reset() |
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{ |
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$this->status = self::STATUS_INITIALIZED; |
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$this->startTime = 0.0; |
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$this->endTime = 0.0; |
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$this->pauseTime = 0.0; |
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$this->totalPauseTime = 0.0; |
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$this->laps = []; |
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} |
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/** |
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* Returns the summary |
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* |
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* @return array |
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*/ |
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public function getSummary() |
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{ |
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return [ |
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'status' => $this->getStatus(), |
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'start' => $this->startTime, |
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'end' => $this->endTime, |
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'total' => $this->endTime - $this->startTime, |
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'paused' => $this->totalPauseTime, |
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'laps' => $this->laps, |
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]; |
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} |
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/** |
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* Pause the Timer |
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* |
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* @throws \LogicException |
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*/ |
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public function pause() |
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{ |
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if ($this->getStatus() !== self::STATUS_RUNNING) { |
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throw new \LogicException('Only running timmers could end. The actually status is '.$this->getStatus()); |
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} |
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$this->status = self::STATUS_PAUSED; |
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$this->pauseTime = $this->getCurrentTime(); |
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} |
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/** |
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* Unpause the Timer |
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* |
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* @throws \LogicException |
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*/ |
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public function unpause() |
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{ |
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if ($this->getStatus() !== self::STATUS_PAUSED) { |
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throw new \LogicException('Only paused timmers could unpaused. The actually status is '.$this->getStatus()); |
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} |
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$this->status = self::STATUS_RUNNING; |
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$this->totalPauseTime = $this->getCurrentTime() - $this->pauseTime; |
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$this->pauseTime = 0.0; |
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} |
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/** |
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* Returns the current time |
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* |
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* @return float |
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*/ |
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private function getCurrentTime() |
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{ |
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return microtime(true); |
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} |
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/** |
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* Returns the status |
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* |
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* @return int |
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*/ |
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public function getStatus() |
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{ |
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return $this->status; |
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} |
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} |
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