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<?php |
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/** |
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* Copyright 2017 NanoSector |
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* |
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* You should have received a copy of the MIT license with the project. |
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* See the LICENSE file for more information. |
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*/ |
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namespace Yoshi2889\Tasks; |
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use React\EventLoop\LoopInterface; |
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class TaskController |
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{ |
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/** |
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* @var int |
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*/ |
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protected $loopInterval = 1; |
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/** |
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* @var TaskInterface[] |
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*/ |
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protected $tasks = []; |
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/** |
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* TaskController constructor. |
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* |
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* @param LoopInterface $loop |
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*/ |
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public function __construct(LoopInterface $loop) |
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{ |
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$loop->addPeriodicTimer($this->loopInterval, [$this, 'runTasks']); |
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} |
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/** |
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* @param TaskInterface $task |
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* |
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* @return bool |
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*/ |
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public function add(TaskInterface $task): bool |
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{ |
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if ($this->exists($task)) |
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return false; |
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$this->tasks[] = $task; |
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return true; |
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} |
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/** |
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* @param TaskInterface $task |
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* |
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* @return bool |
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*/ |
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public function remove(TaskInterface $task): bool |
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{ |
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if (!$this->exists($task)) |
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return false; |
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unset($this->tasks[array_search($task, $this->tasks)]); |
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return true; |
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} |
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public function removeAll() |
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{ |
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foreach ($this->tasks as $task) |
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{ |
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$task->cancel(); |
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$this->remove($task); |
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} |
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} |
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/** |
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* @param TaskInterface $task |
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* |
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* @return bool |
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*/ |
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public function exists(TaskInterface $task): bool |
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{ |
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return in_array($task, $this->tasks); |
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} |
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public function runTasks() |
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{ |
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foreach ($this->tasks as $task) |
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{ |
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if (time() < $task->getExpiryTime()) |
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continue; |
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$result = $task->run(); |
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// It is removed first. |
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$this->remove($task); |
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if ($result instanceof TaskInterface) |
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$this->add($result); |
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} |
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} |
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} |