original_string: protected function _read($length)
      {
          $result = fread($this->_fileHandler, $length);
  
          if (false === $result) {
              throw new Mage_Exception('Failed to read data from ' . $this->_filePath);
          }
  
          return $result;
      }
code: protected function _read($length)
      {
          $result = fread($this->_fileHandler, $length);
  
          if (false === $result) {
              throw new Mage_Exception('Failed to read data from ' . $this->_filePath);
          }
  
          return $result;
      }
code_tokens: protected function _read ( $ length ) { $ result = fread ( $ this -> _fileHandler , $ length ) ; if ( false === $ result ) { throw new Mage_Exception ( 'Failed to read data from ' . $ this -> _filePath ) ; } return $ result ; }
docstring: Implementation of file reading
  
  @param int $length
  @throws Mage_Exception
docstring_tokens: Implementation of file reading