citra/src/common/announce_multiplayer_room.h

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// Copyright 2017 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <functional>
#include <future>
#include <string>
#include <vector>
#include "common/common_types.h"
namespace Common {
struct WebResult {
enum class Code : u32 {
Success,
InvalidURL,
CredentialsMissing,
LibError,
HttpError,
WrongContent,
NoWebservice,
};
Code result_code;
std::string result_string;
};
} // namespace Common
namespace AnnounceMultiplayerRoom {
using MacAddress = std::array<u8, 6>;
struct Room {
struct Member {
std::string name;
MacAddress mac_address;
std::string game_name;
u64 game_id;
};
std::string name;
std::string UID;
std::string owner;
std::string ip;
u16 port;
u32 max_player;
u32 net_version;
bool has_password;
std::string preferred_game;
u64 preferred_game_id;
std::vector<Member> members;
};
using RoomList = std::vector<Room>;
/**
* A AnnounceMultiplayerRoom interface class. A backend to submit/get to/from a web service should
* implement this interface.
*/
class Backend : NonCopyable {
public:
virtual ~Backend() = default;
/**
* Sets the Information that gets used for the announce
* @param uid The Id of the room
* @param name The name of the room
* @param port The port of the room
* @param net_version The version of the libNetwork that gets used
* @param has_password True if the room is passowrd protected
* @param preferred_game The preferred game of the room
* @param preferred_game_id The title id of the preferred game
*/
virtual void SetRoomInformation(const std::string& uid, const std::string& name, const u16 port,
const u32 max_player, const u32 net_version,
const bool has_password, const std::string& preferred_game,
const u64 preferred_game_id) = 0;
/**
* Adds a player information to the data that gets announced
* @param nickname The nickname of the player
* @param mac_address The MAC Address of the player
* @param game_id The title id of the game the player plays
* @param game_name The name of the game the player plays
*/
virtual void AddPlayer(const std::string& nickname, const MacAddress& mac_address,
const u64 game_id, const std::string& game_name) = 0;
/**
* Send the data to the announce service
* @result The result of the announce attempt
*/
virtual std::future<Common::WebResult> Announce() = 0;
/**
* Empties the stored players
*/
virtual void ClearPlayers() = 0;
/**
* Get the room information from the announce service
* @param func a function that gets exectued when the get finished.
* Can be used as a callback
* @result A list of all rooms the announce service has
*/
virtual std::future<RoomList> GetRoomList(std::function<void()> func) = 0;
/**
* Sends a delete message to the announce service
*/
virtual void Delete() = 0;
};
/**
* Empty implementation of AnnounceMultiplayerRoom interface that drops all data. Used when a
* functional backend implementation is not available.
*/
class NullBackend : public Backend {
public:
~NullBackend() = default;
void SetRoomInformation(const std::string& /*uid*/, const std::string& /*name*/,
const u16 /*port*/, const u32 /*max_player*/, const u32 /*net_version*/,
const bool /*has_password*/, const std::string& /*preferred_game*/,
const u64 /*preferred_game_id*/) override {}
void AddPlayer(const std::string& /*nickname*/, const MacAddress& /*mac_address*/,
const u64 /*game_id*/, const std::string& /*game_name*/) override {}
std::future<Common::WebResult> Announce() override {
return std::async(std::launch::deferred, []() {
return Common::WebResult{Common::WebResult::Code::NoWebservice,
"WebService is missing"};
});
}
void ClearPlayers() override {}
std::future<RoomList> GetRoomList(std::function<void()> func) override {
return std::async(std::launch::deferred, [func]() {
func();
return RoomList{};
});
}
void Delete() override {}
};
} // namespace AnnounceMultiplayerRoom