ServiceAvailable.php
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<?php
/**
* Copyright 2010-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
namespace Aws\Common\InstanceMetadata\Waiter;
use Aws\Common\Waiter\AbstractResourceWaiter;
use Guzzle\Http\Exception\CurlException;
/**
* Waits until the instance metadata service is responding. Will send up to
* 4 requests with a 5 second delay between each try. Each try can last up to
* 11 seconds to complete if the service is not responding.
*
* @codeCoverageIgnore
*/
class ServiceAvailable extends AbstractResourceWaiter
{
protected $interval = 5;
protected $maxAttempts = 4;
/**
* {@inheritdoc}
*/
public function doWait()
{
$request = $this->client->get();
try {
$request->getCurlOptions()->set(CURLOPT_CONNECTTIMEOUT, 10)
->set(CURLOPT_TIMEOUT, 10);
$request->send();
return true;
} catch (CurlException $e) {
return false;
}
}
}