/**
* @inheritdoc
*/
public function truncate($size)
{
if (!$this->stream->isAccessible()) {
throw new Exception\IOException('Invalid stream resource');
}
if (!@ftruncate($this->stream->getResource(), $size)) {
throw new Exception\IOException('Unexpected result of operation');
}
return $this;
}
/**
* @inheritdoc
*/
public function read($length = 1)
{
if (!$this->stream->isAccessible()) {
throw new Exception\IOException('Invalid stream resource');
}
$data = @fread($this->stream->getResource(), $length);
if (false === $data) {
throw new Exception\IOException('Unexpected result of operation');
}
return $data;
}
