diff options
Diffstat (limited to 'vendor/react/event-loop/src/Timer')
-rw-r--r-- | vendor/react/event-loop/src/Timer/Timer.php | 55 | ||||
-rw-r--r-- | vendor/react/event-loop/src/Timer/Timers.php | 112 |
2 files changed, 167 insertions, 0 deletions
diff --git a/vendor/react/event-loop/src/Timer/Timer.php b/vendor/react/event-loop/src/Timer/Timer.php new file mode 100644 index 0000000..da3602a --- /dev/null +++ b/vendor/react/event-loop/src/Timer/Timer.php @@ -0,0 +1,55 @@ +<?php + +namespace React\EventLoop\Timer; + +use React\EventLoop\TimerInterface; + +/** + * The actual connection implementation for TimerInterface + * + * This class should only be used internally, see TimerInterface instead. + * + * @see TimerInterface + * @internal + */ +final class Timer implements TimerInterface +{ + const MIN_INTERVAL = 0.000001; + + private $interval; + private $callback; + private $periodic; + + /** + * Constructor initializes the fields of the Timer + * + * @param float $interval The interval after which this timer will execute, in seconds + * @param callable $callback The callback that will be executed when this timer elapses + * @param bool $periodic Whether the time is periodic + */ + public function __construct($interval, $callback, $periodic = false) + { + if ($interval < self::MIN_INTERVAL) { + $interval = self::MIN_INTERVAL; + } + + $this->interval = (float) $interval; + $this->callback = $callback; + $this->periodic = (bool) $periodic; + } + + public function getInterval() + { + return $this->interval; + } + + public function getCallback() + { + return $this->callback; + } + + public function isPeriodic() + { + return $this->periodic; + } +} diff --git a/vendor/react/event-loop/src/Timer/Timers.php b/vendor/react/event-loop/src/Timer/Timers.php new file mode 100644 index 0000000..3a33b8c --- /dev/null +++ b/vendor/react/event-loop/src/Timer/Timers.php @@ -0,0 +1,112 @@ +<?php + +namespace React\EventLoop\Timer; + +use React\EventLoop\TimerInterface; + +/** + * A scheduler implementation that can hold multiple timer instances + * + * This class should only be used internally, see TimerInterface instead. + * + * @see TimerInterface + * @internal + */ +final class Timers +{ + private $time; + private $timers = array(); + private $schedule = array(); + private $sorted = true; + private $useHighResolution; + + public function __construct() + { + // prefer high-resolution timer, available as of PHP 7.3+ + $this->useHighResolution = \function_exists('hrtime'); + } + + public function updateTime() + { + return $this->time = $this->useHighResolution ? \hrtime(true) * 1e-9 : \microtime(true); + } + + public function getTime() + { + return $this->time ?: $this->updateTime(); + } + + public function add(TimerInterface $timer) + { + $id = \spl_object_hash($timer); + $this->timers[$id] = $timer; + $this->schedule[$id] = $timer->getInterval() + $this->updateTime(); + $this->sorted = false; + } + + public function contains(TimerInterface $timer) + { + return isset($this->timers[\spl_object_hash($timer)]); + } + + public function cancel(TimerInterface $timer) + { + $id = \spl_object_hash($timer); + unset($this->timers[$id], $this->schedule[$id]); + } + + public function getFirst() + { + // ensure timers are sorted to simply accessing next (first) one + if (!$this->sorted) { + $this->sorted = true; + \asort($this->schedule); + } + + return \reset($this->schedule); + } + + public function isEmpty() + { + return \count($this->timers) === 0; + } + + public function tick() + { + // hot path: skip timers if nothing is scheduled + if (!$this->schedule) { + return; + } + + // ensure timers are sorted so we can execute in order + if (!$this->sorted) { + $this->sorted = true; + \asort($this->schedule); + } + + $time = $this->updateTime(); + + foreach ($this->schedule as $id => $scheduled) { + // schedule is ordered, so loop until first timer that is not scheduled for execution now + if ($scheduled >= $time) { + break; + } + + // skip any timers that are removed while we process the current schedule + if (!isset($this->schedule[$id]) || $this->schedule[$id] !== $scheduled) { + continue; + } + + $timer = $this->timers[$id]; + \call_user_func($timer->getCallback(), $timer); + + // re-schedule if this is a periodic timer and it has not been cancelled explicitly already + if ($timer->isPeriodic() && isset($this->timers[$id])) { + $this->schedule[$id] = $timer->getInterval() + $time; + $this->sorted = false; + } else { + unset($this->timers[$id], $this->schedule[$id]); + } + } + } +} |