/**
* Read regular data
*
* @param FramePickerInterface $picker Picker to read data into
*
* @return string
*/
private function readRegularData(FramePickerInterface $picker)
{
// work-around https://bugs.php.net/bug.php?id=52602
$resource = $this->socket->getStreamResource();
$readContext = ['countCycles' => 0, 'dataBeforeIo' => $this->getDataInSocket(), 'isStreamDataEmpty' => false];
do {
$data = fread($resource, self::SOCKET_BUFFER_SIZE);
$this->throwNetworkSocketExceptionIf($data === false, 'Failed to read data.', true);
$isDataEmpty = $data === '';
$result = $picker->pickUpData($data, $this->getRemoteAddress());
$readContext['countCycles'] += 1;
$readContext['isStreamDataEmpty'] = $this->isReadDataActuallyEmpty($data);
$this->readAttempts = $this->resolveReadAttempts($readContext, $this->readAttempts);
} while (!$picker->isEof() && !$isDataEmpty);
return $result;
}
/**
* Read unhandled data if there is something from the previous operation
*
* @param FramePickerInterface $picker Frame picker to use
* @param Context $context Socket context
* @param bool $isOutOfBand Flag if it is out-of-band data
*
* @return bool Flag whether it is the end of the frame
*/
private function handleUnreadData(FramePickerInterface $picker, Context $context, $isOutOfBand)
{
$unhandledData = $context->getUnreadData($isOutOfBand);
if ($unhandledData) {
$context->setUnreadData($picker->pickUpData($unhandledData, $this->getRemoteAddress()), $isOutOfBand);
}
return $picker->isEof();
}
