gnu-social/plugins/RedisQueue/classes/RedisQueueManager.php

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2019-08-31 06:42:08 +09:00
<?php
use Predis\Client;
class RedisQueueManager extends QueueManager
{
protected $queue;
protected $client = null;
protected $server;
public function __construct(string $server)
{
$this->server = $server;
$this->queue = 'gnusocial:' . common_config('site', 'name');
}
private function _ensureConn()
{
if ($this->client === null) {
$this->client = new Client($this->server);
}
}
public function pollInterval()
{
return 10;
}
public function enqueue($object, $queue)
{
$this->_ensureConn();
$ret = $this->client->rpush($this->queue, $this->encode([$queue, $object]));
if (empty($ret)) {
common_log(LOG_ERR, "Unable to insert object into Redis queue {$queue}");
} else {
common_debug("The Redis queue for {$queue} has length {$ret}");
}
}
public function poll()
{
common_debug("STARTING POLL");
try {
$this->_ensureConn();
$ret = $this->client->lpop($this->queue);
if (!empty($ret)) {
list($queue, $object) = $this->decode($ret);
} else {
return false;
}
} catch (Exception $e) {
$this->_log(LOG_INFO, "[Queue {$queue}] Discarding: " . _ve($e->getMessage()));
return false;
}
try {
$handler = $this->getHandler($queue);
$handler->handle($object);
common_debug("Redis Queue handled item from {$queue} queue");
return true;
} catch (Exception $e) {
$this->_log(LOG_ERR, "[Queue: {$queue}] `" . get_class($e) . '` thrown: ' . _ve($e->getMessage()));
return false;
}
}
};