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<?php |
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namespace Dazzle\Loop\Timer; |
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use SplObjectStorage; |
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use SplPriorityQueue; |
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class TimerBox |
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{ |
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/** |
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* @var float |
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*/ |
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protected $time; |
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/** |
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* @var SplObjectStorage |
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*/ |
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protected $timers; |
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/** |
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* @var SplPriorityQueue |
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*/ |
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protected $scheduler; |
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/** |
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* |
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*/ |
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public function __construct() |
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{ |
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$this->timers = new SplObjectStorage(); |
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$this->scheduler = new SplPriorityQueue(); |
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} |
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/** |
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* @return float |
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*/ |
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public function updateTime() |
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{ |
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return $this->time = microtime(true); |
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} |
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/** |
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* @return mixed |
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*/ |
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public function getTime() |
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{ |
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return $this->time ?: $this->updateTime(); |
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} |
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/** |
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* @param TimerInterface $timer |
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* @return bool |
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*/ |
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public function contains(TimerInterface $timer) |
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{ |
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return $this->timers->contains($timer); |
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} |
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/** |
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* @param TimerInterface $timer |
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*/ |
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public function add(TimerInterface $timer) |
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{ |
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$interval = $timer->getInterval(); |
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$scheduledAt = $interval + $this->getTime(); |
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$this->timers->attach($timer, $scheduledAt); |
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$this->scheduler->insert($timer, -$scheduledAt); |
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} |
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/** |
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* @param TimerInterface $timer |
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*/ |
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public function remove(TimerInterface $timer) |
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{ |
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$this->timers->detach($timer); |
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} |
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/** |
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* @return TimerInterface|null |
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*/ |
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public function getFirst() |
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{ |
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while ($this->scheduler->count()) |
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{ |
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$timer = $this->scheduler->top(); |
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if ($this->timers->contains($timer)) |
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{ |
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return $this->timers[$timer]; |
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} |
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$this->scheduler->extract(); |
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} |
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return null; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isEmpty() |
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{ |
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return count($this->timers) === 0; |
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} |
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/** |
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* |
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*/ |
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public function tick() |
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{ |
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$time = $this->updateTime(); |
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$timers = $this->timers; |
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$scheduler = $this->scheduler; |
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while (!$scheduler->isEmpty()) |
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{ |
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$timer = $scheduler->top(); |
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if (!isset($timers[$timer])) |
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{ |
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$scheduler->extract(); |
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$timers->detach($timer); |
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continue; |
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} |
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if ($timers[$timer] >= $time) |
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{ |
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break; |
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} |
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4 |
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$scheduler->extract(); |
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$callback = $timer->getCallback(); |
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$callback($timer); |
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4 |
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if ($timer->isPeriodic() && isset($timers[$timer])) |
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{ |
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2 |
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$timers[$timer] = $scheduledAt = $timer->getInterval() + $time; |
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2 |
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$scheduler->insert($timer, -$scheduledAt); |
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} |
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else |
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{ |
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2 |
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$timers->detach($timer); |
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} |
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} |
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38 |
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} |
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} |
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dazzle-php /
loop
