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<?php |
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/* |
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* hirak/prestissimo |
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* @author Hiraku NAKANO |
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* @license MIT https://github.com/hirak/prestissimo |
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*/ |
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namespace Hirak\Prestissimo; |
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class CurlMulti |
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{ |
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/** @var resource curl_multi */ |
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private $mh; |
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/** @var resource[] curl */ |
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private $unused = array(); |
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/** @var resource[] curl */ |
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private $using = array(); |
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/** @var array {src: HttpGetRequest, dest: OutputFile}*/ |
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private $targets; |
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/** @var array {src: HttpGetRequest, dest: OutputFile}*/ |
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private $runningTargets; |
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private $blackhole; |
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/** |
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* @param int $maxConnections |
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*/ |
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public function __construct($maxConnections) |
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{ |
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$this->mh = curl_multi_init(); |
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for ($i = 0; $i < $maxConnections; ++$i) { |
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$this->unused[] = curl_init(); |
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} |
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$this->blackhole = fopen('php://memory', 'wb'); |
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} |
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public function __destruct() |
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{ |
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foreach ($this->using as $ch) { |
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curl_multi_remove_handle($this->mh, $ch); |
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curl_close($ch); |
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} |
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foreach ($this->unused as $ch) { |
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curl_close($ch); |
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} |
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curl_multi_close($this->mh); |
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} |
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/** |
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* @codeCoverageIgnore |
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*/ |
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public function setupShareHandler() |
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{ |
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if (function_exists('curl_share_init')) { |
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$sh = curl_share_init(); |
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curl_share_setopt($sh, CURLSHOPT_SHARE, CURL_LOCK_DATA_SSL_SESSION); |
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foreach ($this->unused as $ch) { |
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curl_setopt($ch, CURLOPT_SHARE, $sh); |
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} |
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} |
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} |
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/** |
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* @param array $targets {src: HttpGetRequest, dest: OutputFile} |
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*/ |
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public function setTargets(array $targets) |
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{ |
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$this->targets = $targets; |
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} |
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public function setupEventLoop() |
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{ |
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while (count($this->unused) > 0 && count($this->targets) > 0) { |
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$target = array_pop($this->targets); |
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$ch = array_pop($this->unused); |
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$index = (int)$ch; |
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$this->using[$index] = $ch; |
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$this->runningTargets[$index] = $target; |
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$opts = $target['src']->getCurlOpts(); |
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unset($opts[CURLOPT_ENCODING], $opts[CURLOPT_USERPWD]); |
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curl_setopt_array($ch, $opts); |
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curl_setopt($ch, CURLOPT_FILE, $target['dest']->getPointer()); |
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curl_multi_add_handle($this->mh, $ch); |
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} |
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} |
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public function wait() |
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{ |
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$expectRunning = count($this->using); |
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$running = 0; |
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$retryCnt = 0; |
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do { |
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do { |
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$stat = curl_multi_exec($this->mh, $running); |
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} while ($stat === CURLM_CALL_MULTI_PERFORM); |
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if (-1 === curl_multi_select($this->mh)) { |
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// @codeCoverageIgnoreStart |
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if ($retryCnt++ > 100) { |
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throw new \RuntimeException('curl_multi_select failure'); |
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} |
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// @codeCoverageIgnoreEnd |
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usleep(100000); |
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} |
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} while ($running > 0 && $running >= $expectRunning); |
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} |
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public function getFinishedResults() |
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{ |
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$results = array(); |
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$successCnt = $failureCnt = 0; |
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do { |
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if ($raised = curl_multi_info_read($this->mh, $remains)) { |
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$ch = $raised['handle']; |
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$errno = curl_errno($ch); |
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$info = curl_getinfo($ch); |
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curl_setopt($ch, CURLOPT_FILE, $this->blackhole); |
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$index = (int)$ch; |
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$target = $this->runningTargets[$index]; |
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if (CURLE_OK === $errno && 200 === $info['http_code']) { |
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++$successCnt; |
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$target['dest']->setSuccess(); |
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$results[] = $info['url']; |
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} else { |
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++$failureCnt; |
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} |
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unset($this->using[$index], $this->runningTargets[$index], $target); |
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curl_multi_remove_handle($this->mh, $ch); |
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$this->unused[] = $ch; |
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} |
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} while ($remains > 0); |
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return compact('successCnt', 'failureCnt', 'results'); |
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} |
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public function remain() |
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{ |
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return count($this->runningTargets) > 0; |
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} |
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} |
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hirak /
prestissimo
