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Direktori : /home2/selectio/www/application/third_party/vkontakte/vendor/guzzlehttp/guzzle/src/ |
Current File : //home2/selectio/www/application/third_party/vkontakte/vendor/guzzlehttp/guzzle/src/Pool.php |
<?php namespace GuzzleHttp; use GuzzleHttp\Promise\PromisorInterface; use Psr\Http\Message\RequestInterface; use GuzzleHttp\Promise\EachPromise; /** * Sends and iterator of requests concurrently using a capped pool size. * * The pool will read from an iterator until it is cancelled or until the * iterator is consumed. When a request is yielded, the request is sent after * applying the "request_options" request options (if provided in the ctor). * * When a function is yielded by the iterator, the function is provided the * "request_options" array that should be merged on top of any existing * options, and the function MUST then return a wait-able promise. */ class Pool implements PromisorInterface { /** @var EachPromise */ private $each; /** * @param ClientInterface $client Client used to send the requests. * @param array|\Iterator $requests Requests or functions that return * requests to send concurrently. * @param array $config Associative array of options * - concurrency: (int) Maximum number of requests to send concurrently * - options: Array of request options to apply to each request. * - fulfilled: (callable) Function to invoke when a request completes. * - rejected: (callable) Function to invoke when a request is rejected. */ public function __construct( ClientInterface $client, $requests, array $config = [] ) { // Backwards compatibility. if (isset($config['pool_size'])) { $config['concurrency'] = $config['pool_size']; } elseif (!isset($config['concurrency'])) { $config['concurrency'] = 25; } if (isset($config['options'])) { $opts = $config['options']; unset($config['options']); } else { $opts = []; } $iterable = \GuzzleHttp\Promise\iter_for($requests); $requests = function () use ($iterable, $client, $opts) { foreach ($iterable as $key => $rfn) { if ($rfn instanceof RequestInterface) { yield $key => $client->sendAsync($rfn, $opts); } elseif (is_callable($rfn)) { yield $key => $rfn($opts); } else { throw new \InvalidArgumentException('Each value yielded by ' . 'the iterator must be a Psr7\Http\Message\RequestInterface ' . 'or a callable that returns a promise that fulfills ' . 'with a Psr7\Message\Http\ResponseInterface object.'); } } }; $this->each = new EachPromise($requests(), $config); } public function promise() { return $this->each->promise(); } /** * Sends multiple requests concurrently and returns an array of responses * and exceptions that uses the same ordering as the provided requests. * * IMPORTANT: This method keeps every request and response in memory, and * as such, is NOT recommended when sending a large number or an * indeterminate number of requests concurrently. * * @param ClientInterface $client Client used to send the requests * @param array|\Iterator $requests Requests to send concurrently. * @param array $options Passes through the options available in * {@see GuzzleHttp\Pool::__construct} * * @return array Returns an array containing the response or an exception * in the same order that the requests were sent. * @throws \InvalidArgumentException if the event format is incorrect. */ public static function batch( ClientInterface $client, $requests, array $options = [] ) { $res = []; self::cmpCallback($options, 'fulfilled', $res); self::cmpCallback($options, 'rejected', $res); $pool = new static($client, $requests, $options); $pool->promise()->wait(); ksort($res); return $res; } private static function cmpCallback(array &$options, $name, array &$results) { if (!isset($options[$name])) { $options[$name] = function ($v, $k) use (&$results) { $results[$k] = $v; }; } else { $currentFn = $options[$name]; $options[$name] = function ($v, $k) use (&$results, $currentFn) { $currentFn($v, $k); $results[$k] = $v; }; } } }