42 lines
926 B
PHP
42 lines
926 B
PHP
<?php
|
|
|
|
declare(strict_types=1);
|
|
|
|
namespace GuzzleHttp\Psr7;
|
|
|
|
use Psr\Http\Message\StreamInterface;
|
|
|
|
/**
|
|
* Lazily reads or writes to a file that is opened only after an IO operation
|
|
* take place on the stream.
|
|
*/
|
|
#[\AllowDynamicProperties]
|
|
final class LazyOpenStream implements StreamInterface
|
|
{
|
|
use StreamDecoratorTrait;
|
|
|
|
/** @var string */
|
|
private $filename;
|
|
|
|
/** @var string */
|
|
private $mode;
|
|
|
|
/**
|
|
* @param string $filename File to lazily open
|
|
* @param string $mode fopen mode to use when opening the stream
|
|
*/
|
|
public function __construct(string $filename, string $mode)
|
|
{
|
|
$this->filename = $filename;
|
|
$this->mode = $mode;
|
|
}
|
|
|
|
/**
|
|
* Creates the underlying stream lazily when required.
|
|
*/
|
|
protected function createStream(): StreamInterface
|
|
{
|
|
return Utils::streamFor(Utils::tryFopen($this->filename, $this->mode));
|
|
}
|
|
}
|