cleanup method
void
cleanup()
Clean up transport subscriptions and packet buffer.
@api private
Implementation
void cleanup() {
_logger.fine('cleanup');
var subsLength = subs.length;
for (var i = 0; i < subsLength; i++) {
var sub = subs.removeAt(0);
sub.destroy();
}
packetBuffer = [];
encoding = false;
lastPing = null;
decoder.destroy();
}