/**
* Reads a chunk of data into the internal read buffer.
*/
private function readFrame()
{
$buf = $this->transport_->readAll(4);
$val = unpack('N', $buf);
$sz = $val[1];
$this->rBuf_ = $this->transport_->readAll($sz);
}
private function saslRead_($statusByte = false)
{
// Read SASL Header
if ($statusByte) {
$frame = unpack('Cstatus/Nlength', $this->transport_->readAll(5));
} else {
$frame = unpack('Nlength', $this->transport_->readAll(4));
}
// Read SASL Payload
$frame['payload'] = $this->transport_->readAll($frame['length']);
return $frame;
}
/**
* The reason that we customize readAll here is that the majority of PHP
* streams are already internally buffered by PHP. The socket stream, for
* example, buffers internally and blocks if you call read with $len greater
* than the amount of data available, unlike recv() in C.
*
* Therefore, use the readAll method of the wrapped transport inside
* the buffered readAll.
*/
public function readAll($len)
{
$have = TStringFuncFactory::create()->strlen($this->rBuf_);
if ($have == 0) {
$data = $this->transport_->readAll($len);
} elseif ($have < $len) {
$data = $this->rBuf_;
$this->rBuf_ = '';
$data .= $this->transport_->readAll($len - $have);
} elseif ($have == $len) {
$data = $this->rBuf_;
$this->rBuf_ = '';
} elseif ($have > $len) {
$data = TStringFuncFactory::create()->substr($this->rBuf_, 0, $len);
$this->rBuf_ = TStringFuncFactory::create()->substr($this->rBuf_, $len);
}
return $data;
}
