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<?php |
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namespace mpyw\Co\Internal; |
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use mpyw\Co\CURLException; |
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use mpyw\RuntimePromise\Deferred; |
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class Pool |
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{ |
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/** |
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* Options. |
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* @var CoOption |
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*/ |
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private $options; |
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/** |
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* cURL multi handle. |
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* @var resource |
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*/ |
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private $mh; |
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/** |
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* Used for halting loop. |
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* @var \RuntimeException |
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*/ |
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private $haltException; |
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/** |
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* cURL handle scheduler. |
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* @var Scheduler |
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*/ |
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private $scheduler; |
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/** |
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* Delay controller. |
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* @var Delayer |
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*/ |
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private $delayer; |
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/** |
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* Constructor. |
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* Initialize cURL multi handle. |
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* @param CoOption $options |
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*/ |
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public function __construct(CoOption $options) |
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{ |
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$this->mh = curl_multi_init(); |
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$flags = (int)$options['pipeline'] + (int)$options['multiplex'] * 2; |
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curl_multi_setopt($this->mh, CURLMOPT_PIPELINING, $flags); |
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$this->options = $options; |
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$this->scheduler = new Scheduler($options, $this->mh); |
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$this->delayer = new Delayer; |
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} |
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/** |
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* Call curl_multi_add_handle() or push into queue. |
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* @param resource $ch |
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* @param Deferred $deferred |
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*/ |
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public function addCurl($ch, Deferred $deferred = null) |
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{ |
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$this->scheduler->add($ch, $deferred); |
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} |
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/** |
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* Add delay. |
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* @param int $time |
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* @param Deferred $deferred |
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*/ |
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public function addDelay($time, Deferred $deferred) |
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{ |
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$this->delayer->add($time, $deferred); |
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} |
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/** |
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* Run curl_multi_exec() loop. |
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*/ |
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public function wait() |
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{ |
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curl_multi_exec($this->mh, $active); // Start requests. |
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do { |
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// if cURL handle is running, use curl_multi_select() |
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// otherwise, just sleep until nearest time |
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$this->scheduler->isEmpty() |
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? $this->delayer->sleep() |
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: curl_multi_select($this->mh, $this->options['interval']) < 0 |
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&& usleep($this->options['interval'] * 1000000); |
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curl_multi_exec($this->mh, $active); |
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$this->scheduler->consume(); |
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$this->delayer->consume(); |
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} while (!$this->haltException && (!$this->scheduler->isEmpty() || !$this->delayer->isEmpty())); |
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if ($this->haltException) { |
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throw $this->haltException; |
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} |
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} |
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/** |
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* Used for halting loop. |
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*/ |
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public function reserveHaltException($e) |
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{ |
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$this->haltException = $e; |
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} |
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} |
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mpyw /
co
