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