/usr/share/php/Symfony/Component/Process/Pipes/AbstractPipes.php is in php-symfony-process 2.7.10-0ubuntu2.
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/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Process\Pipes;
/**
* @author Romain Neutron <imprec@gmail.com>
*
* @internal
*/
abstract class AbstractPipes implements PipesInterface
{
/** @var array */
public $pipes = array();
/** @var string */
protected $inputBuffer = '';
/** @var resource|null */
protected $input;
/** @var bool */
private $blocked = true;
/**
* {@inheritdoc}
*/
public function close()
{
foreach ($this->pipes as $pipe) {
fclose($pipe);
}
$this->pipes = array();
}
/**
* Returns true if a system call has been interrupted.
*
* @return bool
*/
protected function hasSystemCallBeenInterrupted()
{
$lastError = error_get_last();
// stream_select returns false when the `select` system call is interrupted by an incoming signal
return isset($lastError['message']) && false !== stripos($lastError['message'], 'interrupted system call');
}
/**
* Unblocks streams.
*/
protected function unblock()
{
if (!$this->blocked) {
return;
}
foreach ($this->pipes as $pipe) {
stream_set_blocking($pipe, 0);
}
if (null !== $this->input) {
stream_set_blocking($this->input, 0);
}
$this->blocked = false;
}
}
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