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Till Krüss
47 lines
1.3 KiB
PHP
47 lines
1.3 KiB
PHP
<?php
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/*
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* This file is part of the Predis package.
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*
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* (c) 2009-2020 Daniele Alessandri
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* (c) 2021-2026 Till Krüss
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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require __DIR__ . '/shared.php';
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$client = new Predis\Client(
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$single_server + ['read_write_timeout' => 0],
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['connections' => 'relay']
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);
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// Relay dispatches messages through a blocking callback instead of an iterator.
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$callbacks = [
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'notifications' => static function ($payload, $relay) {
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echo "Notification: {$payload}", PHP_EOL;
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},
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'control_channel' => static function ($payload, $relay) {
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if ($payload === 'quit_loop') {
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// Unsubscribe from all channels to return from the dispatch loop.
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$relay->unsubscribe();
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}
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},
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];
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$dispatch = static function ($message, $relay) use ($callbacks) {
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if ($message->kind === 'message' && isset($callbacks[$message->channel])) {
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$callbacks[$message->channel]($message->payload, $relay);
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}
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};
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$pubsub = $client->pubSubLoop();
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$pubsub->subscribe(...array_merge(array_keys($callbacks), [$dispatch]));
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// In another terminal:
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// redis-cli PUBLISH notifications "Make it so."
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// redis-cli PUBLISH control_channel quit_loop
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echo 'Dispatcher stopped.', PHP_EOL;
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