public function getFrame()
{
$subframe = "";
if ($this->getRequestTimestampPresent()) {
Buffer::packUTC($subframe, $this->getRequestTimestamp() - self::MILLENNIUM_EPOCH);
}
if ($this->getExecuteTimestampPresent()) {
Buffer::packUTC($subframe, $this->getExecuteTimestamp() - self::MILLENNIUM_EPOCH);
}
if ($this->getEndTimestampPresent()) {
Buffer::packUTC($subframe, $this->getEndTimestamp() - self::MILLENNIUM_EPOCH);
}
$subframe .= $this->getPayload();
$frame = "";
Buffer::packInt8u($frame, $this->getTazHeader());
Buffer::packInt8u($frame, strlen($subframe));
$frame .= $subframe;
return $frame;
}
