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