123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154 |
- <?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
- {
- /** @var bool */
- private $ttyMode;
- /** @var bool */
- private $ptyMode;
- /** @var bool */
- private $haveReadSupport;
- public function __construct($ttyMode, $ptyMode, $input, $haveReadSupport)
- {
- $this->ttyMode = (bool) $ttyMode;
- $this->ptyMode = (bool) $ptyMode;
- $this->haveReadSupport = (bool) $haveReadSupport;
- parent::__construct($input);
- }
- public function __destruct()
- {
- $this->close();
- }
- /**
- * {@inheritdoc}
- */
- public function getDescriptors()
- {
- if (!$this->haveReadSupport) {
- $nullstream = fopen('/dev/null', 'c');
- return array(
- array('pipe', 'r'),
- $nullstream,
- $nullstream,
- );
- }
- if ($this->ttyMode) {
- return array(
- array('file', '/dev/tty', 'r'),
- array('file', '/dev/tty', 'w'),
- array('file', '/dev/tty', 'w'),
- );
- }
- if ($this->ptyMode && Process::isPtySupported()) {
- return array(
- array('pty'),
- array('pty'),
- array('pty'),
- );
- }
- return array(
- array('pipe', 'r'),
- array('pipe', 'w'), // stdout
- array('pipe', 'w'), // stderr
- );
- }
- /**
- * {@inheritdoc}
- */
- public function getFiles()
- {
- return array();
- }
- /**
- * {@inheritdoc}
- */
- public function readAndWrite($blocking, $close = false)
- {
- $this->unblock();
- $w = $this->write();
- $read = $e = array();
- $r = $this->pipes;
- unset($r[0]);
- // let's have a look if something changed in streams
- if (($r || $w) && false === $n = @stream_select($r, $w, $e, 0, $blocking ? Process::TIMEOUT_PRECISION * 1E6 : 0)) {
- // if a system call has been interrupted, forget about it, let's try again
- // otherwise, an error occurred, let's reset pipes
- if (!$this->hasSystemCallBeenInterrupted()) {
- $this->pipes = array();
- }
- return $read;
- }
- foreach ($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;
- }
- }
|