thinkphp/library/think/process/pipes/Unix.php

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2015 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: yunwuxin <448901948@qq.com>
// +----------------------------------------------------------------------

namespace think\process\pipes;

use think\Process;

class Unix extends Pipes
{

    /** @var bool */
    private $ttyMode;
    /** @var bool */
    private $ptyMode;
    /** @var bool */
    private $disableOutput;

    public function __construct($ttyMode, $ptyMode, $input, $disableOutput)
    {
        $this->ttyMode       = (bool) $ttyMode;
        $this->ptyMode       = (bool) $ptyMode;
        $this->disableOutput = (bool) $disableOutput;

        if (is_resource($input)) {
            $this->input = $input;
        } else {
            $this->inputBuffer = (string) $input;
        }
    }

    public function __destruct()
    {
        $this->close();
    }

    /**
     * {@inheritdoc}
     */
    public function getDescriptors()
    {
        if ($this->disableOutput) {
            $nullstream = fopen('/dev/null', 'c');

            return [
                ['pipe', 'r'],
                $nullstream,
                $nullstream,
            ];
        }

        if ($this->ttyMode) {
            return [