moved Libs out of core folder
This commit is contained in:
Steffen Schröder
235
application/libs/curl-easy/cURL/RequestsQueue.php
Normal file
235
application/libs/curl-easy/cURL/RequestsQueue.php
Normal file
@@ -0,0 +1,235 @@
|
||||
<?php
|
||||
namespace cURL;
|
||||
|
||||
use Symfony\Component\EventDispatcher\EventDispatcher;
|
||||
use Countable;
|
||||
|
||||
class RequestsQueue extends EventDispatcher implements RequestsQueueInterface, Countable
|
||||
{
|
||||
/**
|
||||
* @var Options Default options for new Requests attached to RequestsQueue
|
||||
*/
|
||||
protected $defaultOptions = null;
|
||||
|
||||
/**
|
||||
* @var resource cURL multi handler
|
||||
*/
|
||||
protected $mh;
|
||||
|
||||
/**
|
||||
* @var int Amount of requests running
|
||||
*/
|
||||
protected $runningCount = 0;
|
||||
|
||||
/**
|
||||
* @var array Array of requests attached
|
||||
*/
|
||||
protected $queue = array();
|
||||
|
||||
/**
|
||||
* @var array Array of requests running
|
||||
*/
|
||||
protected $running = array();
|
||||
|
||||
/**
|
||||
* Constructor
|
||||
*
|
||||
* @return void
|
||||
*/
|
||||
public function __construct()
|
||||
{
|
||||
$this->mh = curl_multi_init();
|
||||
}
|
||||
|
||||
/**
|
||||
* Destructor, closes curl_multi handler
|
||||
*
|
||||
* @return void
|
||||
*/
|
||||
public function __destruct()
|
||||
{
|
||||
if (isset($this->mh)) {
|
||||
curl_multi_close($this->mh);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns cURL\Options object with default request's options
|
||||
*
|
||||
* @return Options
|
||||
*/
|
||||
public function getDefaultOptions()
|
||||
{
|
||||
if (!isset($this->defaultOptions)) {
|
||||
$this->defaultOptions = new Options;
|
||||
}
|
||||
return $this->defaultOptions;
|
||||
}
|
||||
|
||||
/**
|
||||
* Overrides default options with given Options object
|
||||
*
|
||||
* @param Options $defaultOptions New options
|
||||
*
|
||||
* @return void
|
||||
*/
|
||||
public function setDefaultOptions(Options $defaultOptions)
|
||||
{
|
||||
$this->defaultOptions = $defaultOptions;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get cURL multi handle
|
||||
*
|
||||
* @return resource
|
||||
*/
|
||||
public function getHandle()
|
||||
{
|
||||
return $this->mh;
|
||||
}
|
||||
|
||||
/**
|
||||
* Attach request to queue.
|
||||
*
|
||||
* @param Request $request Request to add
|
||||
*
|
||||
* @return self
|
||||
*/
|
||||
public function attach(Request $request)
|
||||
{
|
||||
$this->queue[$request->getUID()] = $request;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Detach request from queue.
|
||||
*
|
||||
* @param Request $request Request to remove
|
||||
*
|
||||
* @return self
|
||||
*/
|
||||
public function detach(Request $request)
|
||||
{
|
||||
unset($this->queue[$request->getUID()]);
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Processes handles which are ready and removes them from pool.
|
||||
*
|
||||
* @return int Amount of requests completed
|
||||
*/
|
||||
protected function read()
|
||||
{
|
||||
$n = 0;
|
||||
while ($info = curl_multi_info_read($this->mh)) {
|
||||
$n++;
|
||||
$request = $this->queue[(int)$info['handle']];
|
||||
$result = $info['result'];
|
||||
|
||||
curl_multi_remove_handle($this->mh, $request->getHandle());
|
||||
unset($this->running[$request->getUID()]);
|
||||
$this->detach($request);
|
||||
|
||||
$event = new Event;
|
||||
$event->request = $request;
|
||||
$event->response = new Response($request, curl_multi_getcontent($request->getHandle()));
|
||||
if ($result !== CURLE_OK) {
|
||||
$event->response->setError(new Error(curl_error($request->getHandle()), $result));
|
||||
}
|
||||
$event->queue = $this;
|
||||
$this->dispatch('complete', $event);
|
||||
}
|
||||
|
||||
return $n;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns count of handles in queue
|
||||
*
|
||||
* @return int Handles count
|
||||
*/
|
||||
public function count()
|
||||
{
|
||||
return count($this->queue);
|
||||
}
|
||||
|
||||
/**
|
||||
* Executes requests in parallel
|
||||
*
|
||||
* @return void
|
||||
*/
|
||||
public function send()
|
||||
{
|
||||
while ($this->socketPerform()) {
|
||||
$this->socketSelect();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns requests present in $queue but not in $running
|
||||
*
|
||||
* @return array Array of requests
|
||||
*/
|
||||
protected function getRequestsNotRunning()
|
||||
{
|
||||
return array_diff_key($this->queue, $this->running);
|
||||
}
|
||||
|
||||
/**
|
||||
* Download available data on socket.
|
||||
*
|
||||
* @return bool TRUE when there are any requests on queue, FALSE when finished
|
||||
*/
|
||||
public function socketPerform()
|
||||
{
|
||||
if ($this->count() == 0) {
|
||||
throw new Exception('Cannot perform if there are no requests in queue.');
|
||||
}
|
||||
|
||||
|
||||
$notRunning = $this->getRequestsNotRunning();
|
||||
do {
|
||||
/**
|
||||
* Apply cURL options to new requests
|
||||
*/
|
||||
foreach ($notRunning as $request) {
|
||||
$this->getDefaultOptions()->applyTo($request);
|
||||
$request->getOptions()->applyTo($request);
|
||||
curl_multi_add_handle($this->mh, $request->getHandle());
|
||||
$this->running[$request->getUID()] = $request;
|
||||
}
|
||||
|
||||
$runningBefore = $this->runningCount;
|
||||
do {
|
||||
$mrc = curl_multi_exec($this->mh, $this->runningCount);
|
||||
} while ($mrc === CURLM_CALL_MULTI_PERFORM);
|
||||
$runningAfter = $this->runningCount;
|
||||
|
||||
$completed = ($runningAfter < $runningBefore) ? $this->read() : 0;
|
||||
|
||||
$notRunning = $this->getRequestsNotRunning();
|
||||
} while (count($notRunning) > 0);
|
||||
|
||||
|
||||
return $this->count() > 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Waits until activity on socket
|
||||
* On success, returns TRUE. On failure, this function will
|
||||
* return FALSE on a select failure or timeout (from the underlying
|
||||
* select system call)
|
||||
*
|
||||
* @param float $timeout Maximum time to wait
|
||||
*
|
||||
* @return bool
|
||||
*/
|
||||
public function socketSelect($timeout = 1)
|
||||
{
|
||||
if ($this->count() == 0) {
|
||||
throw new Exception('Cannot select if there are no requests in queue.');
|
||||
}
|
||||
return curl_multi_select($this->mh, $timeout) !== -1;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user