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Edit File : UnixPipes.php \| Size : 3.58 KB
<?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() { $this->close(); } /* * {@inheritdoc} / public function getDescriptors(): array { if (!$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(): array { return []; } /* * {@inheritdoc} / public function readAndWrite(bool $blocking, bool $close = false): array { $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(): bool { return $this->haveReadSupport; } /* * {@inheritdoc} */ public function areOpen(): bool { return (bool) $this->pipes; } } Back

Edit File : UnixPipes.php | Size : 3.58 KB

<?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(): array
    {
        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(): array
    {
        return [];
    }

/**
     * {@inheritdoc}
     */
    public function readAndWrite(bool $blocking, bool $close = false): array
    {
        $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(): bool
    {
        return $this->haveReadSupport;
    }

/**
     * {@inheritdoc}
     */
    public function areOpen(): bool
    {
        return (bool) $this->pipes;
    }
}

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