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<?php |
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namespace mpyw\Co\Internal; |
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use mpyw\Co\Co; |
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use mpyw\Co\Internal\CoOption; |
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use mpyw\Co\CURLException; |
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use mpyw\RuntimePromise\Deferred; |
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class ConnectionCounter |
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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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* The number of whole running TCP connections. |
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* @var array |
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*/ |
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private $connectionCount = 0; |
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/** |
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* Counts per destination. |
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* key => identifier |
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* value => count |
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* @var array |
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*/ |
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private $destinations = []; |
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/** |
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* Constructor. |
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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->options = $options; |
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} |
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/** |
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* Add destination info. |
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* @param resource $ch |
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*/ |
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public function addDestination($ch) |
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{ |
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$id = $this->getIdentifier($ch); |
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if ($id === '') { |
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++$this->connectionCount; |
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return; |
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} |
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if (empty($this->destinations[$id])) { |
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$this->destinations[$id] = 1; |
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++$this->connectionCount; |
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return; |
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} |
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++$this->destinations[$id]; |
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} |
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/** |
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* Check if internal cURL pool is filled. |
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* @param resource $ch |
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* @return bool |
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*/ |
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public function isPoolFilled($ch) |
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{ |
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$id = $this->getIdentifier($ch); |
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if ($id !== '' && !empty($this->destinations[$id])) { |
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return false; |
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} |
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return $this->options['concurrency'] > 0 |
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&& $this->connectionCount >= $this->options['concurrency']; |
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} |
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/** |
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* Remove destination info. |
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* @param resource $ch |
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*/ |
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public function removeDestination($ch) |
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{ |
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$id = $this->getIdentifier($ch); |
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if ($id === '') { |
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--$this->connectionCount; |
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return; |
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} |
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if (empty($this->destinations[$id]) || $this->destinations[$id] === 1) { |
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unset($this->destinations[$id]); |
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--$this->connectionCount; |
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return; |
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} |
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--$this->destinations[$id]; |
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} |
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/** |
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* Push into queue. |
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* @param resource $ch |
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* @return string |
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*/ |
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private function getIdentifier($ch) |
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{ |
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return $this->options['group'] ? (string)curl_getinfo($ch, CURLINFO_PRIVATE) : ''; |
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} |
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} |
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mpyw /
co
