/**
* Coroutine that handles incoming WebSocket frames.
*/
protected function processIncomingFrames() : \Generator
{
$e = null;
try {
while (true) {
$frame = (yield from $this->readNextFrame());
if ($frame->isControlFrame()) {
if (!(yield from $this->handleControlFrame($frame))) {
break;
}
} else {
switch ($frame->opcode) {
case Frame::TEXT:
yield from $this->handleTextFrame($frame);
break;
case Frame::BINARY:
yield from $this->handleBinaryFrame($frame);
break;
case Frame::CONTINUATION:
yield from $this->handleContinuationFrame($frame);
break;
}
}
}
} catch (\Throwable $e) {
$this->messages->close($e);
} finally {
$this->messages->close();
try {
foreach ($this->pings as $defer) {
$defer->fail($e ?? new \RuntimeException('WebSocket connection closed'));
}
} finally {
$this->pings = [];
}
try {
if ($this->socket->isAlive()) {
$reason = $e === null || $e->getCode() === 0 ? Frame::NORMAL_CLOSURE : $e->getCode();
(yield $this->writer->sendFrame(new Frame(Frame::CONNECTION_CLOSE, \pack('n', $reason))));
}
} finally {
if ($this->logger) {
$this->logger->debug('WebSocket connection to {peer} closed', ['peer' => $this->socket->getRemoteAddress()]);
}
$this->socket->close();
}
}
}
