--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/swiftmailer/lib/classes/Swift/Plugins/BandwidthMonitorPlugin.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,166 @@
+<?php
+
+/*
+ * This file is part of SwiftMailer.
+ * (c) 2004-2009 Chris Corbyn
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+
+/**
+ * Reduces network flooding when sending large amounts of mail.
+ * @package Swift
+ * @subpackage Plugins
+ * @author Chris Corbyn
+ */
+class Swift_Plugins_BandwidthMonitorPlugin
+  implements Swift_Events_SendListener, Swift_Events_CommandListener,
+  Swift_Events_ResponseListener, Swift_InputByteStream
+{
+  
+  /**
+   * The outgoing traffic counter.
+   * @var int
+   * @access private
+   */
+  private $_out = 0;
+  
+  /**
+   * The incoming traffic counter.
+   * @var int
+   * @access private
+   */
+  private $_in = 0;
+  
+  /** Bound byte streams */
+  private $_mirrors = array();
+  
+  /**
+   * Not used.
+   */
+  public function beforeSendPerformed(Swift_Events_SendEvent $evt)
+  {
+  }
+  
+  /**
+   * Invoked immediately after the Message is sent.
+   * @param Swift_Events_SendEvent $evt
+   */
+  public function sendPerformed(Swift_Events_SendEvent $evt)
+  {
+    $message = $evt->getMessage();
+    $message->toByteStream($this);
+  }
+  
+  /**
+   * Invoked immediately following a command being sent.
+   * @param Swift_Events_ResponseEvent $evt
+   */
+  public function commandSent(Swift_Events_CommandEvent $evt)
+  {
+    $command = $evt->getCommand();
+    $this->_out += strlen($command);
+  }
+  
+  /**
+   * Invoked immediately following a response coming back.
+   * @param Swift_Events_ResponseEvent $evt
+   */
+  public function responseReceived(Swift_Events_ResponseEvent $evt)
+  {
+    $response = $evt->getResponse();
+    $this->_in += strlen($response);
+  }
+  
+  /**
+   * Called when a message is sent so that the outgoing counter can be increased.
+   * @param string $bytes
+   */
+  public function write($bytes)
+  {
+    $this->_out += strlen($bytes);
+    foreach ($this->_mirrors as $stream)
+    {
+      $stream->write($bytes);
+    }
+  }
+  
+  /**
+   * Not used.
+   */
+  public function commit()
+  {
+  }
+  
+  /**
+   * Attach $is to this stream.
+   * The stream acts as an observer, receiving all data that is written.
+   * All {@link write()} and {@link flushBuffers()} operations will be mirrored.
+   * 
+   * @param Swift_InputByteStream $is
+   */
+  public function bind(Swift_InputByteStream $is)
+  {
+    $this->_mirrors[] = $is;
+  }
+  
+  /**
+   * Remove an already bound stream.
+   * If $is is not bound, no errors will be raised.
+   * If the stream currently has any buffered data it will be written to $is
+   * before unbinding occurs.
+   * 
+   * @param Swift_InputByteStream $is
+   */
+  public function unbind(Swift_InputByteStream $is)
+  {
+    foreach ($this->_mirrors as $k => $stream)
+    {
+      if ($is === $stream)
+      {
+        unset($this->_mirrors[$k]);
+      }
+    }
+  }
+  
+  /**
+   * Not used.
+   */
+  public function flushBuffers()
+  {
+    foreach ($this->_mirrors as $stream)
+    {
+      $stream->flushBuffers();
+    }
+  }
+  
+  /**
+   * Get the total number of bytes sent to the server.
+   * @return int
+   */
+  public function getBytesOut()
+  {
+    return $this->_out;
+  }
+  
+  /**
+   * Get the total number of bytes received from the server.
+   * @return int
+   */
+  public function getBytesIn()
+  {
+    return $this->_in;
+  }
+  
+  /**
+   * Reset the internal counters to zero.
+   */
+  public function reset()
+  {
+    $this->_out = 0;
+    $this->_in = 0;
+  }
+  
+}