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<?php
/**
* Phergie
*
* PHP version 5
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.
* It is also available through the world-wide-web at this URL:
* http://phergie.org/license
*
* @category Phergie
* @package Phergie
* @author Phergie Development Team <team@phergie.org>
* @copyright 2008-2010 Phergie Development Team (http://phergie.org)
* @license http://phergie.org/license New BSD License
* @link http://pear.phergie.org/package/Phergie
*/
/**
* Connection data processor which polls to handle input in an
* asynchronous manner. Will also cause the application tick at
* the user-defined wait time.
*
* @category Phergie
* @package Phergie
* @author Phergie Development Team <team@phergie.org>
* @license http://phergie.org/license New BSD License
* @link http://pear.phergie.org/package/Phergie
*/
class Phergie_Process_Async extends Phergie_Process_Abstract
{
/**
* Length of time to poll for stream activity (seconds)
*
* @var int
*/
protected $sec = 0;
/**
* Length of time to poll for stream activity (microseconds)
*
* @var int
*/
protected $usec = 200000;
/**
* Length of time to wait between ticks.
*
* @var int
*/
protected $wait = 0;
/**
* Records when the application last performed a tick
*
* @var int
*/
protected $lastTick = 0;
/**
* Overrides the parent class to set the poll time.
*
* @param Phergie_Bot $bot Main bot class
* @param array $options Processor arguments
*
* @return void
*/
public function __construct(Phergie_Bot $bot, array $options)
{
if (!$bot->getDriver() instanceof Phergie_Driver_Streams) {
throw new Phergie_Process_Exception(
'The Async event processor requires the Streams driver'
);
}
foreach (array('sec', 'usec') as $var) {
if (isset($options[$var])) {
if (!is_int($options[$var])) {
throw new Phergie_Process_Exception(
'Processor option "' . $var . '" must be an integer'
);
}
$this->$var = $options[$var];
}
}
if (!isset($this->sec) && !isset($this->usec)) {
throw new Phergie_Process_Exception(
'One of the processor options "sec" or "usec" must be specified'
);
}
parent::__construct($bot, $options);
}
/**
* Waits for stream activity and performs event processing on
* connections with data to read.
*
* @return void
*/
protected function handleEventsAsync()
{
$hostmasks = $this->driver->getActiveReadSockets($this->sec, $this->usec);
if (!$hostmasks) {
return;
}
$connections = $this->connections->getConnections($hostmasks);
foreach ($connections as $connection) {
$this->driver->setConnection($connection);
$this->plugins->setConnection($connection);
$this->plugins->onTick();
if ($event = $this->driver->getEvent()) {
$this->ui->onEvent($event, $connection);
$this->plugins->setEvent($event);
$this->plugins->preEvent();
$this->plugins->{'on' . ucfirst($event->getType())}();
}
$this->processEvents($connection);
}
}
/**
* Perform application tick event on all plugins and connections.
*
* @return void
*/
protected function doTick()
{
foreach ($this->connections as $connection) {
$this->plugins->setConnection($connection);
$this->plugins->onTick();
$this->processEvents($connection);
}
}
/**
* Obtains and processes incoming events, then sends resulting outgoing
* events.
*
* @return void
*/
public function handleEvents()
{
$time = time();
if ($this->lastTick == 0 || ($this->lastTick + $this->wait <= $time)) {
$this->doTick();
$this->lastTick = $time;
}
$this->handleEventsAsync();
}
}
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