/**
* serialize the 'properties' attribute (a dictionary) into the
* raw bytes making up a set of property flags and a property
* list, suitable for putting into a content frame header.
*/
public function serializeProperties()
{
$shift = 15;
$flagBits = 0;
$flags = array();
$rawBytes = new Writer();
foreach ($this->propertyTypes as $key => $proptype) {
if (isset($this->properties[$key])) {
$value = $this->properties[$key];
} else {
$value = null;
}
if ($value != null) {
if ($shift == 0) {
$flags[] = $flagBits;
$flagBits = 0;
$shift = 15;
}
$flagBits |= 1 << $shift;
if ($proptype != 'bit') {
$proptype = ucfirst($proptype);
$rawBytes->{'write' . $proptype}($value);
}
}
$shift -= 1;
}
$flags[] = $flagBits;
$result = new Writer();
foreach ($flags as $flagBits) {
$result->writeShort($flagBits);
}
$result->write($rawBytes->getvalue());
return $result->getvalue();
}
/**
* @param string $channel
* @param string $methodSig
* @param Writer|string $args
*
* @return Connection
*/
public function sendChannelMethodFrame($channel, $methodSig, $args = '')
{
if ($args instanceof Writer) {
$args = $args->getvalue();
}
$outboundPacket = new Writer();
$outboundPacket->writeOctet(1);
$outboundPacket->writeShort($channel);
$outboundPacket->writeLong(strlen($args) + 4);
// 4 = length of class_id and method_id
// in payload
$outboundPacket->writeShort($methodSig[0]);
// class_id
$outboundPacket->writeShort($methodSig[1]);
// method_id
$outboundPacket->write($args);
$outboundPacket->writeOctet(0xce);
$outboundPacket = $outboundPacket->getvalue();
$this->write($outboundPacket);
if ($this->debug) {
Helper::debugMsg('< ' . Helper::methodSig($methodSig) . ': ' . AbstractChannel::$globalMethodNames[Helper::methodSig($methodSig)]);
}
return $this;
}
