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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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const MAX_CONNECTIONS = 10; |
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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 CopyRequest[] */ |
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private $requests = array(); |
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/** @var CopyRequest[] */ |
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private $runningRequests = array(); |
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/** @var bool */ |
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private $permanent = true; |
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private $blackhole; |
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/** |
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* @param bool $permanent |
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*/ |
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public function __construct($permanent = true) |
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{ |
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static $mh_cache, $ch_cache; |
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if (!$permanent || !$mh_cache) { |
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$mh_cache = curl_multi_init(); |
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$ch_cache = array(); |
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for ($i = 0; $i < self::MAX_CONNECTIONS; ++$i) { |
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$ch = curl_init(); |
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Share::setup($ch); |
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$ch_cache[] = $ch; |
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} |
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} |
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$this->mh = $mh_cache; |
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$this->unused = $ch_cache; |
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$this->permanent = $permanent; |
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// for PHP<5.5 @see getFinishedResults() |
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$this->blackhole = fopen('php://temp', 'wb'); |
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} |
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/** |
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* @codeCoverageIgnore |
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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, $ch); |
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$this->unused[] = $ch; |
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} |
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if ($this->permanent) { |
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return; //don't close connection |
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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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* @param CopyRequest[] $requests |
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*/ |
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public function setRequests(array $requests) |
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{ |
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$this->requests = $requests; |
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} |
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public function setupEventLoop() |
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{ |
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while (count($this->unused) > 0 && count($this->requests) > 0) { |
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// Process request using a clone to ensure any memory we cause it to allocate is freed after we unset |
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// Otherwise, memory is still held for all requests due to it existing on the callstack |
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// Callers should not need to know this though |
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$request = clone array_pop($this->requests); |
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$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->runningRequests[$index] = $request; |
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curl_setopt_array($ch, $request->getCurlOptions()); |
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curl_multi_add_handle($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 FetchException('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 >= $expectRunning); |
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} |
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4 |
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public function getFinishedResults() |
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{ |
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$urls = $errors = array(); |
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$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($ch); |
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if ($errno == CURLE_OK && $raised['result'] != CURLE_OK) { |
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$errno = $raised['result']; |
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} |
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$error = curl_error($ch); |
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$info = curl_getinfo($ch); |
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curl_setopt($ch, CURLOPT_FILE, $this->blackhole); //release file pointer |
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$index = (int)$ch; |
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$request = $this->runningRequests[$index]; |
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$urls[] = $request->getMaskedURL(); |
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if (CURLE_OK === $errno && ('http' !== substr($info['url'], 0, 4) || 200 === $info['http_code'])) { |
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++$successCnt; |
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$request->makeSuccess(); |
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} else { |
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++$failureCnt; |
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$errors[$request->getMaskedURL()] = "$errno: $error"; |
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} |
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unset($this->using[$index], $this->runningRequests[$index], $request); |
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curl_multi_remove_handle($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', 'urls', 'errors'); |
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} |
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5 |
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public function remain() |
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{ |
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return count($this->runningRequests) > 0; |
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} |
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164
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} |
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hirak /
prestissimo
