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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 React\Promise\Deferred; |
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use React\Promise\PromiseInterface; |
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class ManualScheduler extends AbstractScheduler |
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{ |
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/** |
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* cURL handles those have not been dispatched. |
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* @var array |
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*/ |
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private $queue = []; |
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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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* @param resource $mh curl_multi |
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*/ |
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public function __construct(CoOption $options, $mh) |
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{ |
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$this->mh = $mh; |
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$this->options = $options; |
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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 $ch |
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* @return PromiseInterface |
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*/ |
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public function add($ch) |
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{ |
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$deferred = new Deferred; |
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$this->options['concurrency'] > 0 |
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&& count($this->added) >= $this->options['concurrency'] |
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? $this->addReserved($ch, $deferred) |
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: $this->addImmediate($ch, $deferred); |
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return $deferred->promise(); |
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} |
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/** |
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* Are there no cURL handles? |
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* @return bool |
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*/ |
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public function isEmpty() |
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{ |
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return !$this->added && !$this->queue; |
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} |
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/** |
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* Call curl_multi_add_handle(). |
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* @param resource $ch |
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* @param Deferred $deferred |
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*/ |
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private function addImmediate($ch, Deferred $deferred = null) |
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{ |
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$errno = curl_multi_add_handle($this->mh, $ch); |
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View Code Duplication |
if ($errno !== CURLM_OK) { |
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// @codeCoverageIgnoreStart |
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$msg = curl_multi_strerror($errno) . ": $ch"; |
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$deferred && $deferred->reject(new \RuntimeException($msg)); |
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return; |
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// @codeCoverageIgnoreEnd |
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} |
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$this->added[(string)$ch] = $ch; |
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$deferred && $this->deferreds[(string)$ch] = $deferred; |
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} |
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/** |
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* Push into queue. |
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* @param resource $ch |
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* @param Deferred $deferred |
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*/ |
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private function addReserved($ch, Deferred $deferred = null) |
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{ |
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$this->queue[(string)$ch] = $ch; |
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$deferred && $this->deferreds[(string)$ch] = $deferred; |
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} |
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/** |
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* Add cURL handles from waiting queue. |
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*/ |
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protected function interruptConsume() |
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{ |
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if ($this->queue) { |
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$this->addImmediate(array_shift($this->queue)); |
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} |
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} |
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} |
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mpyw /
co
