<?php
/*
* This file is part of SwiftMailer.
* (c) 2011 Fabien Potencier <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Stores Messages in memory.
*
* @author Fabien Potencier
*/
class Swift_MemorySpool implements Swift_Spool
{
protected $messages = [];
private $flushRetries = 3;
/**
* Tests if this Transport mechanism has started.
*
* @return bool
*/
public function isStarted()
{
return true;
}
/**
* Starts this Transport mechanism.
*/
public function start()
{
}
/**
* Stops this Transport mechanism.
*/
public function stop()
{
}
/**
* @param int $retries
*/
public function setFlushRetries($retries)
{
$this->flushRetries = $retries;
}
/**
* Stores a message in the queue.
*
* @param Swift_Mime_SimpleMessage $message The message to store
*
* @return bool Whether the operation has succeeded
*/
public function queueMessage(Swift_Mime_SimpleMessage $message)
{
//clone the message to make sure it is not changed while in the queue
$this->messages[] = clone $message;
return true;
}
/**
* Sends messages using the given transport instance.
*
* @param Swift_Transport $transport A transport instance
* @param string[] $failedRecipients An array of failures by-reference
*
* @return int The number of sent emails
*/
public function flushQueue(Swift_Transport $transport, &$failedRecipients = null)
{
if (!$this->messages) {
return 0;
}
if (!$transport->isStarted()) {
$transport->start();
}
$count = 0;
$retries = $this->flushRetries;
while ($retries--) {
try {
while ($message = array_pop($this->messages)) {
$count += $transport->send($message, $failedRecipients);
}
} catch (Swift_TransportException $exception) {
if ($retries) {
// re-queue the message at the end of the queue to give a chance
// to the other messages to be sent, in case the failure was due to
// this message and not just the transport failing
array_unshift($this->messages, $message);
// wait half a second before we try again
usleep(500000);
} else {
throw $exception;
}
}
}
return $count;
}
}