symfony
diff --git a/‎src/Symfony/Component/Scheduler/Scheduler.php
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+86Lines changed: 86 additions & 0 deletions b/‎src/Symfony/Component/Scheduler/Scheduler.php
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+86Lines changed: 86 additions & 0 deletions
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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Scheduler;
+
+use Symfony\Component\Clock\Clock;
+use Symfony\Component\Clock\ClockInterface;
+use Symfony\Component\Scheduler\Generator\MessageGenerator;
+
+/**
+ * @experimental
+ */
+final class Scheduler
+{
+    /**
+     * @var array<MessageGenerator>
+     */
+    private array $generators = [];
+    private int $index = 0;
+    private bool $shouldStop = false;
+
+    /**
+     * @param iterable<Schedule> $schedules
+     */
+    public function __construct(
+        private array $handlers,
+        array $schedules,
+        private ClockInterface $clock = new Clock(),
+    ) {
+        foreach ($schedules as $schedule) {
+            $this->addSchedule($schedule);
+        }
+    }
+
+    public function addSchedule(Schedule $schedule): void
+    {
+        $this->addMessageGenerator(new MessageGenerator($schedule, 'schedule_'.$this->index++, $this->clock));
+    }
+
+    public function addMessageGenerator(MessageGenerator $generator): void
+    {
+        $this->generators[] = $generator;
+    }
+
+    /**
+     * Schedules messages.
+     *
+     * Valid options are:
+     *  * sleep (default: 1000000): Time in microseconds to sleep after no messages are found
+     */
+    public function run(array $options = []): void
+    {
+        $options += ['sleep' => 1e6];
+
+        while (!$this->shouldStop) {
+            $start = $this->clock->now();
+
+            $ran = false;
+            foreach ($this->generators as $generator) {
+                foreach ($generator->getMessages() as $message) {
+                    $this->handlers[$message::class]($message);
+                    $ran = true;
+                }
+            }
+
+            if (!$ran) {
+                if (0 < $sleep = (int) ($options['sleep'] - 1e6 * ($this->clock->now()->format('U.u') - $start->format('U.u')))) {
+                    $this->clock->sleep($sleep / 1e6);
+                }
+            }
+        }
+    }
+
+    public function stop(): void
+    {
+        $this->shouldStop = true;
+    }
+}