public function AppendStream::read in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 vendor/guzzlehttp/psr7/src/AppendStream.php \GuzzleHttp\Psr7\AppendStream::read()

Reads from all of the appended streams until the length is met or EOF.

Overrides StreamInterface::read

1 call to AppendStream::read()

AppendStream::seek in vendor/guzzlehttp/psr7/src/AppendStream.php

Attempts to seek to the given position. Only supports SEEK_SET.

File

vendor/guzzlehttp/psr7/src/AppendStream.php, line 174

Class

AppendStream

Reads from multiple streams, one after the other.

Namespace

GuzzleHttp\Psr7

Code

public function read($length) {
  $buffer = '';
  $total = count($this->streams) - 1;
  $remaining = $length;
  $progressToNext = false;
  while ($remaining > 0) {

    // Progress to the next stream if needed.
    if ($progressToNext || $this->streams[$this->current]
      ->eof()) {
      $progressToNext = false;
      if ($this->current === $total) {
        break;
      }
      $this->current++;
    }
    $result = $this->streams[$this->current]
      ->read($remaining);

    // Using a loose comparison here to match on '', false, and null
    if ($result == null) {
      $progressToNext = true;
      continue;
    }
    $buffer .= $result;
    $remaining = $length - strlen($buffer);
  }
  $this->pos += strlen($buffer);
  return $buffer;
}