Multiplayer: Send an error message when connecting to a full room
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@ -22,6 +22,8 @@ const ConnectionError UNABLE_TO_CONNECT(
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QT_TR_NOOP("Unable to connect to the host. Verify that the connection settings are correct. If "
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"you still cannot connect, contact the room host and verify that the host is "
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"properly configured with the external port forwarded."));
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const ConnectionError ROOM_IS_FULL(
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QT_TR_NOOP("Unable to connect to the room because it is already full."));
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const ConnectionError COULD_NOT_CREATE_ROOM(
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QT_TR_NOOP("Creating a room failed. Please retry. Restarting Citra might be necessary."));
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const ConnectionError HOST_BANNED(
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@ -27,6 +27,7 @@ extern const ConnectionError IP_ADDRESS_NOT_VALID;
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extern const ConnectionError PORT_NOT_VALID;
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extern const ConnectionError NO_INTERNET;
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extern const ConnectionError UNABLE_TO_CONNECT;
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extern const ConnectionError ROOM_IS_FULL;
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extern const ConnectionError COULD_NOT_CREATE_ROOM;
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extern const ConnectionError HOST_BANNED;
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extern const ConnectionError WRONG_VERSION;
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@ -102,6 +102,9 @@ void MultiplayerState::OnNetworkStateChanged(const Network::RoomMember::State& s
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case Network::RoomMember::State::MacCollision:
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NetworkMessage::ShowError(NetworkMessage::MAC_COLLISION);
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break;
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case Network::RoomMember::State::RoomIsFull:
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NetworkMessage::ShowError(NetworkMessage::ROOM_IS_FULL);
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break;
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case Network::RoomMember::State::WrongPassword:
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NetworkMessage::ShowError(NetworkMessage::WRONG_PASSWORD);
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break;
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@ -68,6 +68,11 @@ public:
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*/
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bool IsValidMacAddress(const MacAddress& address) const;
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/**
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* Sends a ID_ROOM_IS_FULL message telling the client that the room is full.
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*/
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void SendRoomIsFull(ENetPeer* client);
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/**
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* Sends a ID_ROOM_NAME_COLLISION message telling the client that the name is invalid.
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*/
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@ -193,6 +198,13 @@ void Room::RoomImpl::StartLoop() {
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}
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void Room::RoomImpl::HandleJoinRequest(const ENetEvent* event) {
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{
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std::lock_guard<std::mutex> lock(member_mutex);
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if (members.size() >= room_information.member_slots) {
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SendRoomIsFull(event->peer);
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return;
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}
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}
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Packet packet;
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packet.Append(event->packet->data, event->packet->dataLength);
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packet.IgnoreBytes(sizeof(u8)); // Ignore the message type
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@ -295,6 +307,16 @@ void Room::RoomImpl::SendWrongPassword(ENetPeer* client) {
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enet_host_flush(server);
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}
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void Room::RoomImpl::SendRoomIsFull(ENetPeer* client) {
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Packet packet;
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packet << static_cast<u8>(IdRoomIsFull);
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ENetPacket* enet_packet =
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enet_packet_create(packet.GetData(), packet.GetDataSize(), ENET_PACKET_FLAG_RELIABLE);
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enet_peer_send(client, 0, enet_packet);
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enet_host_flush(server);
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}
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void Room::RoomImpl::SendVersionMismatch(ENetPeer* client) {
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Packet packet;
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packet << static_cast<u8>(IdVersionMismatch);
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@ -527,7 +549,9 @@ bool Room::Create(const std::string& name, const std::string& server_address, u1
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}
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address.port = server_port;
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room_impl->server = enet_host_create(&address, max_connections, NumChannels, 0, 0);
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// In order to send the room is full message to the connecting client, we need to leave one slot
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// open so enet won't reject the incoming connection without telling us
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room_impl->server = enet_host_create(&address, max_connections + 1, NumChannels, 0, 0);
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if (!room_impl->server) {
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return false;
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}
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@ -57,7 +57,8 @@ enum RoomMessageTypes : u8 {
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IdMacCollision,
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IdVersionMismatch,
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IdWrongPassword,
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IdCloseRoom
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IdCloseRoom,
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IdRoomIsFull,
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};
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/// This is what a server [person creating a server] would use.
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@ -154,6 +154,9 @@ void RoomMember::RoomMemberImpl::MemberLoop() {
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HandleJoinPacket(&event); // Get the MAC Address for the client
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SetState(State::Joined);
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break;
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case IdRoomIsFull:
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SetState(State::RoomIsFull);
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break;
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case IdNameCollision:
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SetState(State::NameCollision);
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break;
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@ -54,11 +54,12 @@ public:
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LostConnection, ///< Connection closed
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// Reasons why connection was rejected
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NameCollision, ///< Somebody is already using this name
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MacCollision, ///< Somebody is already using that mac-address
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WrongVersion, ///< The room version is not the same as for this RoomMember
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WrongPassword, ///< The password doesn't match the one from the Room
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CouldNotConnect ///< The room is not responding to a connection attempt
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NameCollision, ///< Somebody is already using this name
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MacCollision, ///< Somebody is already using that mac-address
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WrongVersion, ///< The room version is not the same as for this RoomMember
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WrongPassword, ///< The password doesn't match the one from the Room
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CouldNotConnect, ///< The room is not responding to a connection attempt
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RoomIsFull ///< Room is already at the maximum number of players
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};
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struct MemberInformation {
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