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								vendor/symfony/process/Pipes/UnixPipes.php
									
									
									
									
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							| @@ -0,0 +1,153 @@ | ||||
| <?php | ||||
|  | ||||
| /* | ||||
|  * 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; | ||||
|  | ||||
| use Symfony\Component\Process\Process; | ||||
|  | ||||
| /** | ||||
|  * UnixPipes implementation uses unix pipes as handles. | ||||
|  * | ||||
|  * @author Romain Neutron <imprec@gmail.com> | ||||
|  * | ||||
|  * @internal | ||||
|  */ | ||||
| class UnixPipes extends AbstractPipes | ||||
| { | ||||
|     private $ttyMode; | ||||
|     private $ptyMode; | ||||
|     private $haveReadSupport; | ||||
|  | ||||
|     public function __construct(?bool $ttyMode, bool $ptyMode, $input, bool $haveReadSupport) | ||||
|     { | ||||
|         $this->ttyMode = $ttyMode; | ||||
|         $this->ptyMode = $ptyMode; | ||||
|         $this->haveReadSupport = $haveReadSupport; | ||||
|  | ||||
|         parent::__construct($input); | ||||
|     } | ||||
|  | ||||
|     public function __destruct() | ||||
|     { | ||||
|         $this->close(); | ||||
|     } | ||||
|  | ||||
|     /** | ||||
|      * {@inheritdoc} | ||||
|      */ | ||||
|     public function getDescriptors() | ||||
|     { | ||||
|         if (!$this->haveReadSupport) { | ||||
|             $nullstream = fopen('/dev/null', 'c'); | ||||
|  | ||||
|             return [ | ||||
|                 ['pipe', 'r'], | ||||
|                 $nullstream, | ||||
|                 $nullstream, | ||||
|             ]; | ||||
|         } | ||||
|  | ||||
|         if ($this->ttyMode) { | ||||
|             return [ | ||||
|                 ['file', '/dev/tty', 'r'], | ||||
|                 ['file', '/dev/tty', 'w'], | ||||
|                 ['file', '/dev/tty', 'w'], | ||||
|             ]; | ||||
|         } | ||||
|  | ||||
|         if ($this->ptyMode && Process::isPtySupported()) { | ||||
|             return [ | ||||
|                 ['pty'], | ||||
|                 ['pty'], | ||||
|                 ['pty'], | ||||
|             ]; | ||||
|         } | ||||
|  | ||||
|         return [ | ||||
|             ['pipe', 'r'], | ||||
|             ['pipe', 'w'], // stdout | ||||
|             ['pipe', 'w'], // stderr | ||||
|         ]; | ||||
|     } | ||||
|  | ||||
|     /** | ||||
|      * {@inheritdoc} | ||||
|      */ | ||||
|     public function getFiles() | ||||
|     { | ||||
|         return []; | ||||
|     } | ||||
|  | ||||
|     /** | ||||
|      * {@inheritdoc} | ||||
|      */ | ||||
|     public function readAndWrite($blocking, $close = false) | ||||
|     { | ||||
|         $this->unblock(); | ||||
|         $w = $this->write(); | ||||
|  | ||||
|         $read = $e = []; | ||||
|         $r = $this->pipes; | ||||
|         unset($r[0]); | ||||
|  | ||||
|         // let's have a look if something changed in streams | ||||
|         set_error_handler([$this, 'handleError']); | ||||
|         if (($r || $w) && false === stream_select($r, $w, $e, 0, $blocking ? Process::TIMEOUT_PRECISION * 1E6 : 0)) { | ||||
|             restore_error_handler(); | ||||
|             // if a system call has been interrupted, forget about it, let's try again | ||||
|             // otherwise, an error occurred, let's reset pipes | ||||
|             if (!$this->hasSystemCallBeenInterrupted()) { | ||||
|                 $this->pipes = []; | ||||
|             } | ||||
|  | ||||
|             return $read; | ||||
|         } | ||||
|         restore_error_handler(); | ||||
|  | ||||
|         foreach ($r as $pipe) { | ||||
|             // prior PHP 5.4 the array passed to stream_select is modified and | ||||
|             // lose key association, we have to find back the key | ||||
|             $read[$type = array_search($pipe, $this->pipes, true)] = ''; | ||||
|  | ||||
|             do { | ||||
|                 $data = fread($pipe, self::CHUNK_SIZE); | ||||
|                 $read[$type] .= $data; | ||||
|             } while (isset($data[0]) && ($close || isset($data[self::CHUNK_SIZE - 1]))); | ||||
|  | ||||
|             if (!isset($read[$type][0])) { | ||||
|                 unset($read[$type]); | ||||
|             } | ||||
|  | ||||
|             if ($close && feof($pipe)) { | ||||
|                 fclose($pipe); | ||||
|                 unset($this->pipes[$type]); | ||||
|             } | ||||
|         } | ||||
|  | ||||
|         return $read; | ||||
|     } | ||||
|  | ||||
|     /** | ||||
|      * {@inheritdoc} | ||||
|      */ | ||||
|     public function haveReadSupport() | ||||
|     { | ||||
|         return $this->haveReadSupport; | ||||
|     } | ||||
|  | ||||
|     /** | ||||
|      * {@inheritdoc} | ||||
|      */ | ||||
|     public function areOpen() | ||||
|     { | ||||
|         return (bool) $this->pipes; | ||||
|     } | ||||
| } | ||||
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