Process::push()   A
last analyzed

Complexity

Conditions 4
Paths 4

Size

Total Lines 20
Code Lines 12

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 20
rs 9.2
c 0
b 0
f 0
cc 4
eloc 12
nc 4
nop 2
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<?php
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namespace yiicod\socketio;
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use Yii;
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use yii\helpers\HtmlPurifier;
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/**
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 * Class Process
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 *
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 * @package SfCod\SocketIoBundle
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 */
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/**
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 * Class Process
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 *
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 * @package yiicod\socketio
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 */
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class Process
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{
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    /**
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     * @var array
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     */
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    private static $_inWork = [];
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    /**
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     * @var
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     */
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    public $yiiAlias;
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    /**
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     * @return int
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     */
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    public function getParallelEnv(): int
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    {
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        return getenv('SOCKET_IO.PARALLEL') ? getenv('SOCKET_IO.PARALLEL') : 10;
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    }
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    /**
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     * Run process. If more then limit then wait and try run process on more time.
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     *
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     * @param string $handle
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     * @param array $data
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     *
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     * @return \Symfony\Component\Process\Process
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     */
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    public function run(string $handle, array $data)
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    {
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        $this->inWork();
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        while (count(self::$_inWork) >= $this->getParallelEnv()) {
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            usleep(100);
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            $this->inWork();
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        }
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        return $this->push($handle, $data);
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    }
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    /**
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     * In work processes
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     */
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    private function inWork()
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    {
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        foreach (self::$_inWork as $i => $proccess) {
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            if (false === $proccess->isRunning()) {
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                unset(self::$_inWork[$i]);
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            }
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        }
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    }
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    /**
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     * Create cmd process and push to queue.
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     *
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     * @param string $handle
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     * @param array $data
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     *
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     * @return \Symfony\Component\Process\Process
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     */
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    private function push(string $handle, array $data): \Symfony\Component\Process\Process
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    {
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        $cmd = HtmlPurifier::process(sprintf('php yii socketio/process %s %s', escapeshellarg($handle), escapeshellarg(json_encode($data))));
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        if (is_null($this->yiiAlias)) {
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            if (file_exists(Yii::getAlias('@app/yii'))) {
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                $this->yiiAlias = '@app';
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            } elseif (file_exists(Yii::getAlias('@app/../yii'))) {
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                $this->yiiAlias = '@app/../';
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            }
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        }
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        $process = new \Symfony\Component\Process\Process($cmd, Yii::getAlias($this->yiiAlias));
0 ignored issues
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Bug introduced by
It seems like \Yii::getAlias($this->yiiAlias) targeting yii\BaseYii::getAlias() can also be of type boolean; however, Symfony\Component\Process\Process::__construct() does only seem to accept null|string, maybe add an additional type check?

This check looks at variables that are passed out again to other methods.

If the outgoing method call has stricter type requirements than the method itself, an issue is raised.

An additional type check may prevent trouble.

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Bug introduced by
It seems like $cmd defined by \yii\helpers\HtmlPurifie...g(json_encode($data)))) on line 82 can also be of type false or null; however, Symfony\Component\Process\Process::__construct() does only seem to accept string|array, maybe add an additional type check?

If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:

/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}

If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.

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        $process->setTimeout(10);
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        $process->start();
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        self::$_inWork[] = $process;
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        return $process;
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    }
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}
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