void NodeList::sendKeepAlivePings() {
eachMatchingNode([this](const SharedNodePointer& node)->bool {
return _nodeTypesOfInterest.contains(node->getType());
}, [&](const SharedNodePointer& node) {
sendPacket(constructPingPacket(), *node);
});
}
void Agent::sendPingRequests() {
auto nodeList = DependencyManager::get<NodeList>();
nodeList->eachMatchingNode([](const SharedNodePointer& node)->bool {
switch (node->getType()) {
case NodeType::AvatarMixer:
case NodeType::AudioMixer:
case NodeType::EntityServer:
return true;
default:
return false;
}
}, [nodeList](const SharedNodePointer& node) {
nodeList->sendPacket(nodeList->constructPingPacket(), *node);
});
}
void MessagesMixer::handleMessages(QSharedPointer<NLPacketList> packetList, SharedNodePointer senderNode) {
QString channel, message;
QUuid senderID;
MessagesClient::decodeMessagesPacket(packetList, channel, message, senderID);
auto nodeList = DependencyManager::get<NodeList>();
nodeList->eachMatchingNode(
[&](const SharedNodePointer& node)->bool {
return node->getType() == NodeType::Agent && node->getActiveSocket() &&
_channelSubscribers[channel].contains(node->getUUID());
},
[&](const SharedNodePointer& node) {
auto packetList = MessagesClient::encodeMessagesPacket(channel, message, senderID);
nodeList->sendPacketList(std::move(packetList), *node);
});
}
void MessagesMixer::handleMessages(QSharedPointer<NLPacketList> packetList, SharedNodePointer senderNode) {
Q_ASSERT(packetList->getType() == PacketType::MessagesData);
QByteArray packetData = packetList->getMessage();
QBuffer packet{ &packetData };
packet.open(QIODevice::ReadOnly);
quint16 channelLength;
packet.read(reinterpret_cast<char*>(&channelLength), sizeof(channelLength));
auto channelData = packet.read(channelLength);
QString channel = QString::fromUtf8(channelData);
quint16 messageLength;
packet.read(reinterpret_cast<char*>(&messageLength), sizeof(messageLength));
auto messageData = packet.read(messageLength);
QString message = QString::fromUtf8(messageData);
auto nodeList = DependencyManager::get<NodeList>();
nodeList->eachMatchingNode(
[&](const SharedNodePointer& node)->bool {
return node->getType() == NodeType::Agent && node->getActiveSocket() &&
_channelSubscribers[channel].contains(node->getUUID());
},
[&](const SharedNodePointer& node) {
auto packetList = NLPacketList::create(PacketType::MessagesData, QByteArray(), true, true);
auto channelUtf8 = channel.toUtf8();
quint16 channelLength = channelUtf8.length();
packetList->writePrimitive(channelLength);
packetList->write(channelUtf8);
auto messageUtf8 = message.toUtf8();
quint16 messageLength = messageUtf8.length();
packetList->writePrimitive(messageLength);
packetList->write(messageUtf8);
nodeList->sendPacketList(std::move(packetList), *node);
});
}