/**
* {@inheritdoc}
*/
protected function enableWriteWatcher(StreamWatcher $watcher)
{
if (isset($this->streamEvents[$watcher->streamId])) {
$watcher->event = $this->streamEvents[$watcher->streamId];
} else {
if (!\is_resource($watcher->stream)) {
throw new \Exception('Invalid resource detected');
}
switch (\stream_get_meta_data($watcher->stream)['stream_type'] ?? '') {
case 'STDIO':
case 'tcp_socket/ssl':
$watcher->event = \uv_poll_init($this->loop, $watcher->stream);
break;
default:
$watcher->event = \uv_poll_init_socket($this->loop, $watcher->stream);
}
$this->streamEvents[$watcher->streamId] = $watcher->event;
}
$id = (int) $watcher->event;
if (empty($this->writeWatchers[$id])) {
if (\uv_is_active($watcher->event)) {
\uv_poll_stop($watcher->event);
}
\uv_poll_start($watcher->event, \UV::WRITABLE | (empty($this->readWatchers[$id]) ? 0 : \UV::READABLE), $this->streamCallback);
}
$this->writeWatchers[$id][$watcher->id] = $watcher;
}
/**
* {@inheritdoc}
*/
public function listen(Io $io, float $timeout = 0)
{
$resource = $io->getResource();
$id = (int) $resource;
if (!isset($this->sockets[$id]) || $io !== $this->sockets[$id]) {
throw new FreedError();
}
// If no poll handle exists for the socket, create one now.
if (!isset($this->polls[$id])) {
$this->polls[$id] = \uv_poll_init_socket($this->loopHandle, $resource);
}
// Begin polling for events.
\uv_poll_start($this->polls[$id], $this->type, $this->pollCallback);
// If a timeout is given, set up a separate timer for cancelling the poll in the future.
if ($timeout) {
if (self::MIN_TIMEOUT > $timeout) {
$timeout = self::MIN_TIMEOUT;
}
if (!isset($this->timers[$id])) {
$timer = \uv_timer_init($this->loopHandle);
$this->handles[(int) $timer] = $id;
$this->timers[$id] = $timer;
}
$timeout *= self::MILLISEC_PER_SEC;
\uv_timer_start($this->timers[$id], $timeout, $timeout, $this->timerCallback);
} elseif (isset($this->timers[$id]) && \uv_is_active($this->timers[$id])) {
\uv_timer_stop($this->timers[$id]);
}
}