Subversion Repositories php-qbpwcf

Rev

Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
3 liveuser 1 
<?php
2 
 
3 
namespace GuzzleHttp\Psr7;
4 
 
5 
use Psr\Http\Message\StreamInterface;
6 
 
7 
/**
8 
 * Lazily reads or writes to a file that is opened only after an IO operation
9 
 * take place on the stream.
10 
 */
11 
class LazyOpenStream implements StreamInterface
12 
{
13 
    use StreamDecoratorTrait;
14 
 
15 
    /** @var string File to open */
16 
    private $filename;
17 
 
18 
    /** @var string $mode */
19 
    private $mode;
20 
 
21 
    /**
22 
     * @param string $filename File to lazily open
23 
     * @param string $mode     fopen mode to use when opening the stream
24 
     */
25 
    public function __construct($filename, $mode)
26 
    {
27 
        $this->filename = $filename;
28 
        $this->mode = $mode;
29 
    }
30 
 
31 
    /**
32 
     * Creates the underlying stream lazily when required.
33 
     *
34 
     * @return StreamInterface
35 
     */
36 
    protected function createStream()
37 
    {
38 
        return Utils::streamFor(Utils::tryFopen($this->filename, $this->mode));
39 
    }
40 
}