/**
* negotiate connection tuning parameters
*/
protected function x_tune_ok($channel_max, $frame_max, $heartbeat)
{
$args = new AMQP_Writer();
$args->write_short($channel_max);
$args->write_long($frame_max);
$args->write_short($heartbeat);
$this->send_method_frame(array(10, 31), $args);
$this->wait_tune_ok = False;
}
/**
* specify quality of service
*/
public function basic_qos($prefetch_size, $prefetch_count, $a_global)
{
$args = new AMQP_Writer();
$args->write_long($prefetch_size);
$args->write_short($prefetch_count);
$args->write_bit($a_global);
$this->send_method_frame(array(60, 10), $args);
return $this->wait(array("60,11"));
}
/**
* 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 serialize_properties()
{
$shift = 15;
$flag_bits = 0;
$flags = array();
$raw_bytes = new AMQP_Writer();
foreach ($this->prop_types as $key => $proptype) {
if (array_key_exists($key, $this->properties)) {
$val = $this->properties[$key];
} else {
$val = NULL;
}
if ($val != NULL) {
if ($shift == 0) {
array_push($flags, $flag_bits);
$flag_bits = 0;
$shift = 15;
}
$flag_bits |= 1 << $shift;
if ($proptype != "bit") {
call_user_func(array($raw_bytes, "write_" . $proptype), $val);
}
}
$shift -= 1;
}
array_push($flags, $flag_bits);
$result = new AMQP_Writer();
foreach ($flags as $flag_bits) {
$result->write_short($flag_bits);
}
$result->write($raw_bytes->getvalue());
return $result->getvalue();
}