DroppingStream.php in Lockr 7.3

Namespace

GuzzleHttp\Psr7

File

vendor/guzzlehttp/psr7/src/DroppingStream.php

<?php

namespace GuzzleHttp\Psr7;

use Psr\Http\Message\StreamInterface;

/**
 * Stream decorator that begins dropping data once the size of the underlying
 * stream becomes too full.
 */
class DroppingStream implements StreamInterface {
  use StreamDecoratorTrait;
  private $maxLength;

  /**
   * @param StreamInterface $stream    Underlying stream to decorate.
   * @param int             $maxLength Maximum size before dropping data.
   */
  public function __construct(StreamInterface $stream, $maxLength) {
    $this->stream = $stream;
    $this->maxLength = $maxLength;
  }
  public function write($string) {
    $diff = $this->maxLength - $this->stream
      ->getSize();

    // Begin returning 0 when the underlying stream is too large.
    if ($diff <= 0) {
      return 0;
    }

    // Write the stream or a subset of the stream if needed.
    if (strlen($string) < $diff) {
      return $this->stream
        ->write($string);
    }
    return $this->stream
      ->write(substr($string, 0, $diff));
  }

}

Classes

Name	Description
DroppingStream	Stream decorator that begins dropping data once the size of the underlying stream becomes too full.